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HomeMy WebLinkAbout1.0 ApplicationeSCHMUESER GORDON MEYER ENGINEERS S SURVEYORS iLENW000 s08 ASPEN 118 W. 6TH. SUITE 200 P.O. BOX 2155 GLENWOOD SPRINGS. CO 81601 ASPEN, CO 8161 2 970-945-1004 970-925-6727 FX: 970-945-5948 FX: 970-925-4157 CRESTED BUTTE P.O. BOX 3088 CRESTED BUTTE. CO 81 224 970-349-5355 FX: 970.349-5358 RECEIVED xi ? 9 Ifft! SUNLIGHT MOUNTAIN RESORT APPLICATION FOR SITE APPROVAL FOR CONSTRUCTION OF A NEW DOMESTIC WASTEWATER TREATMENT PLANT OCTOBER 2001 SUNLIGHT MOUNTAIN RESORT 10901 117 ROAD GLENWOOD SPRINGS, CO 81601 (970)945-7491 PREPARED BY: SCHMUESER GORDON MEYER, INC. 118 W. 6T" STREET GLENWOOD SPRINGS, CO 81601 (970)945-1004 TABLE OF CONTENTS 1. SITE APPLICATION FORM a. 5 MILE RADIUS MAP b. 1 MILE RADIUS MAP 2. ENGINEERING REPORT a. EXHIBIT ATTACHMENTS "A" — "L" ATTACHMENT TO SITE APPLICATION '(0 O w a m inu 0el Y 0 0 a' s C E.t 0E 'x c« 3 Q oto c 0 « o ro co n yY N Y « ro w 3 3 v o 0 .r 3 1;1Nn U w 0 00 0 a o W N Q N av N C y . .5 '5 ro YO 8 « 0 N�j C L N ro 0 A 7 D ro - U L C d0 C « y « O o _0 b 0 0o 0 .. 7 0_ c U 0 33 Q o .ro 0 b U 000 USO. 7 74 .2 .U. g> C co ro co ro a a In accordance with C.R.S. 198 « ro 0 g' a ro � A ,~2-+ a) N ro G o Ess L (0 3 « � v F E 4 ° " 7 0 b0 a ro U y o ..N «w o ro G ro 3 G N en a ro N '0 CI 0 0 CO • yto ro co .7 0 `^ w 0 y 0 E o a co ro cal O 0P. P. o G 0 y L co 75. y N DA .E 0 7 GU °rJ E a C 0 0.) to 'v°'"i 010 O C >C 0 Y o'�x0. o oq C 0 •9. G = G Nro « 7 .0 T 0 m 0 0 N E «= u U E a O E 3 o Li E • 0 co O. o 'E 0 G ccia G.0 0 ro y O « N 3 « ° an a b 0 N a V 0 0 « cal 3 0 3 •d o 0 a o �o ro G anK .2 0.0045-4 0 • w G U ro E C G 0o 5 U ° ' o v a au 0 5 45 0 0 0 Proposed site location, evaluation of alternative sites, and evaluation of treatment alternatives. Proposed effluent limitations as developed in coordination with the Divisio Analysis of existing facilities within the service area(s). C 5 0 co PS C« O Nipt O ro y 0,.0 ,0 C O 1.4 PO 5 ' o Cd .sN P. .5' td N.0 ' « O G.P dG0b T..�64 Cs a N ° oG.G Can0,t NU0, '..pW U0 `p 5NO 7G . 30 C .. N W 0 v,0 n N .ti LE ibq U^ O ' 0 0 00 -C a0 0p 117 ii5 d 0 w«. .. ao0 .50 ro0a co 5 1- a) 0 VU a) 0 N t N 0 bO J . y0 •^ 0 a au a U0 NO T0U 3 N 0 v • 00 " y NN =ci •-0 7 .0 .� y ° ° > : P. 0 « « 0 H oo 0 0 0«rom°''osN•T°O «0YaN0 i Cera •y >0A gv c v N cl O tHa s 'OE ro .0 N a Eao a ro 4.`OC'vC A 7 b G.0 • O Utn '.4-G , O�A id �.0 N is NO , N 3 oCn. .o .. d 0 0. COg 3.EN y 0 G .ti CC O q w o o o aU ~Aa° C 9 « aro o U d 'v o -.5 75 ay 0Uo b o O a) va G 0 U '1 ¢ 4 U U N o N �ta O , ''0 vi 0 00 cc, Oro0to :41 '0 N N . i O Ti cd U . 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Proposed Location (Legal Description) _LIE J ) Township ZS Type and capacity of treatment facility proposed: Major Processes Used: • • • • • • o o / 0 } \ ! 11 g co <s£ Effluent disposal: Surface discharge to watercourse (name) 0j co/ ) Subsurface Disposal: 0 • • • • • d State water quality classification of receiving watercourse(s): Proposed Effluent Limitations developed in conjunction with the Water Quality Control Divi 0 Fecal Coliform " cn { \ 0 mg/1 Ammonia Total Residual Chlorine Will a State or Federal grant/loan be sought to finance any portion of this project? • ° • ° 3`•0 0] Et: =\;s U ƒ \} ° J0 2 ) � {§ \))) * `• f §!`± Ig • 4 e :[\ƒ is .k )\/\ ) • 0 ID ad 95 al O D \/ }� O. j/ kE -} e |) // tg \ �a '4 da - )\ \k0. ƒ / APPLICATION FOR SITE APPROVAL FOR CONSTRUCTION OF: A NEW DOMESTIC WASTEWATER TREATMENT PLANT 0 cn 0 0 0. s 0 O 6 N s U 0 b U E _ N C 0 b u b v N 3 N O U z • • • Ild • Id Address of U What entity has the responsibility for operating the proposed facility? • • • • • • • Id •• Who owns the land upon which the facility will be constructed? w v 0 m G L m 0 v 0 U Estimated project cost: Who is financially responsible for the construction and operation of the facility? ht Mountain Resort will finance s downstream of the proposed alities and water and/or sanitation districts w Names and addresses of wastewater treatment facility site. • • • (Attach a separate sheet of paper if necessary) O Z Is the facility in a 100 -year flood plain or other natural hazard area? z If so, what precautions are being taken? Has the flood plain been designated by the Colorado Water Conservation Board, Department of Natural Resources or other agency? No (Agency Name) rmed decision on Please identify any additional factors that might help the Water Quality Control Division m • • • • • your application for site approv • • • • • Oak Meadows Waste Water Treatment Plant • unlight '� �, RaGo Towers.. Peat \ \ A y �i `-\ — -.:Z i 3:---4 � — — - JAZ —1 rSunlight Gaging SVa, n In I I t_ 7 ci •'\ `' , BLM POBLIC NDS rl; 5 Mile Radius LOCATION MAP SUNLIGHT REV NO. DATE REVISION MADE BY CHKD EY APPO BY SCALE 1:80.00q DATE 1'• 1.25 miler I January, 1997 DRAWN: CHKO: APPD: TLL SHEET: 20F2 PLAN: Pea Oa[. e.. IM. WM Cuomo Myna VMnes Sa el.CO 11007 I OMA MHO, SHEET NO: 1 PROJECT: 94120 71 u, WWTP l gingSta Sunlight ) berg Well,,,,\\\7)1 860 Brettelberg Twp. 7 S. Twp. 8 S. LOCATION MAP x87/6 9190e, 11 it! 351 SUNLIGHT WELL REV NO MADE CHNO BY BY APPD BY P..04.•.. I. Ione....... Gliestakien.00 111102 n/olwsun SHEET NO: 2 PROJECT: 94120 Engineering Report (per Attachment to Site Application, page 4 of 4) Service area definition including existing and projected population, site location, staging or phasing, flow/loading projections, and relationship to other water and wastewater treatment plants in the area. The service area for Sunlight Mountain Resort ("SMR") consists of the ski resort, the Brettelburg Condominiums, the Sunlight Inn, and the Brigham residence. The present population varies, due to the nature of the tourist basis. Exhibit "A" contains a table and graph of historical existing flows. The facility will be constructed to handle an initial phase of 50,000 gallons per day (gpd) This will provide sufficient capacity for the existing population. Please note that the flows that are seen vary widely during the year, due to the tourist population and the number of day skiers on any given day. Also, the typical flow patterns that are seen are based highly upon the number of day skiers. SMR existing WWTF typically sees light usage during late spring, summer, and autumn months prior to the ski season, and an increase in flows during ski season, starting late November to April. Also, on a weekly basis, flows are generally less during weekdays, and peak on weekends, due to increased occupancy at the Brettelberg and Sunlight Inn, as well as day skier visits. In addition, certain holidays, such as Christmas, President's Day Weekend, and Spring Break (typically mid March) see very high flows, as represented by the higher occupancies of the Brettelberg and Sunlight Inn, as well as increases in day skier visits. Proposed site location, evaluation of alternative sites, and evaluation of treatment alternatives. The proposed site location is located north of Four Mile Creek (Site "C") on a parcel of land owned by Sunlight Mountain Resort, and south of four mile road. See the attached Exhibit "D" for a location map that further details the sites. By way of history, Sunlight Mountain Resort has in place an Agreement for the joint Use of the Ski Sunlight Wastewater Treatment Facility ("Joint Use Agreement") for the following parties: • Sunlight Mountain Resort (formerly "Ski Sunlight" or "Sunlight, Inc.") • Brettelberg (also referred as Brettelberg Inn, or Brettelberg Condominiums) • Sunlight Inn • Brigham Residence The "Joint Use Agreement" is attached as Exhibit "B". As a part of the facility planning process, a facilities analysis report was prepared for the above mentioned parties, and is attached as Exhibit "C". Three potential sites were evaluated in determining the best possible location for the proposed treatment facility. The following tables offer a breakdown of each of the sites and a comparison of advantages and disadvantages for each. Treatment alternatives were also considered. The existing facility on site consists of an aerated lagoon facility. The existing facility has two discharges, one to surface water, and the other to land application in the form of snowmaking. One alternative is to make necessary modifications to the existing plant and continue discharging under its current discharge permit. However, this alternative had implications with regards to operations and maintenance costs, being that the sampling frequency for land application discharge was increased in the draft permit. Also, the draft renewal permit required that any potential leakage from ponds be resolved. Given the large investment in repair costs with the marginal return for benefits, the option to repair the existing Proposed effluent limitations as developed in coordination with the Division. Enclosed as Exhibit "E" is a letter received dated March 30, 2001, addressed to CDPHE requesting PEL's for Sunlight Mountain Resort's proposed WWTF. To date, no PEL's Site A Location North of lower parking lot Site Description Strip of land directly north of the existing parking lot, directly south of Four Mile Creek Advantages • • • Close proximity to existing facility. Easy access to site from lower parking lot. Close discharge to Four Mile Creek. Disadvantages • • • • Site is long and narrow, limits layout options. Close to steep slopes for Four Mile Creek. Site has potential for high groundwater. Closer to populated areas Treatment alternatives were also considered. The existing facility on site consists of an aerated lagoon facility. The existing facility has two discharges, one to surface water, and the other to land application in the form of snowmaking. One alternative is to make necessary modifications to the existing plant and continue discharging under its current discharge permit. However, this alternative had implications with regards to operations and maintenance costs, being that the sampling frequency for land application discharge was increased in the draft permit. Also, the draft renewal permit required that any potential leakage from ponds be resolved. Given the large investment in repair costs with the marginal return for benefits, the option to repair the existing Proposed effluent limitations as developed in coordination with the Division. Enclosed as Exhibit "E" is a letter received dated March 30, 2001, addressed to CDPHE requesting PEL's for Sunlight Mountain Resort's proposed WWTF. To date, no PEL's Site B Location Directly east of the existing lagoon facility Site Description North facing hillside slope Advantages • • • Close proximity to existing facility. Existing facilities could be retrofitted/reused for proposed facility. Easy access to site by extending existing access road. Disadvantages • • • Site has visible soil instability Site has high water table Closer to populated areas Treatment alternatives were also considered. The existing facility on site consists of an aerated lagoon facility. The existing facility has two discharges, one to surface water, and the other to land application in the form of snowmaking. One alternative is to make necessary modifications to the existing plant and continue discharging under its current discharge permit. However, this alternative had implications with regards to operations and maintenance costs, being that the sampling frequency for land application discharge was increased in the draft permit. Also, the draft renewal permit required that any potential leakage from ponds be resolved. Given the large investment in repair costs with the marginal return for benefits, the option to repair the existing Proposed effluent limitations as developed in coordination with the Division. Enclosed as Exhibit "E" is a letter received dated March 30, 2001, addressed to CDPHE requesting PEL's for Sunlight Mountain Resort's proposed WWTF. To date, no PEL's Site C Location North of Four Mile Creek Site Description South facing slope north of Four Mile Creek Advantages • • Furthest site from population South facing slope receives plenty of sunlight, keeping winter icing concerns minimized. Disadvantages • • • Site is long and narrow, limits layout options. Close to steep slopes for Four Mile Creek. Site has potential for high groundwater. Treatment alternatives were also considered. The existing facility on site consists of an aerated lagoon facility. The existing facility has two discharges, one to surface water, and the other to land application in the form of snowmaking. One alternative is to make necessary modifications to the existing plant and continue discharging under its current discharge permit. However, this alternative had implications with regards to operations and maintenance costs, being that the sampling frequency for land application discharge was increased in the draft permit. Also, the draft renewal permit required that any potential leakage from ponds be resolved. Given the large investment in repair costs with the marginal return for benefits, the option to repair the existing Proposed effluent limitations as developed in coordination with the Division. Enclosed as Exhibit "E" is a letter received dated March 30, 2001, addressed to CDPHE requesting PEL's for Sunlight Mountain Resort's proposed WWTF. To date, no PEL's have been received at this office. You will also find enclosed as Exhibit "E" a letter sent on October 30, 2001 a letter journaling the conversation with Karen Young, CDPHE, asking for the status of the PEL's per the March 30, 2001 letter. Per the letter, Karen Young indicates that the PEL's are currently being calculated. In the interim, please refer to Exhibit "F", the draft renewal permit which has proposed effluent limitations for the existing lagoon facility. Analysis of existing facilities within the service area(s). The existing facility within the service area is presently where SMR discharges. It is operated under NPDES permit #CO -0038598. The existing facility consists of an aerated lagoon facility with disinfection and a land application discharge. The above mentioned permit is currently in the process of being reissued, and during the reissuing process, the draft permit had identified several compliance items for the existing facility. Attached as Exhibit "F" is the draft permit includes the compliance items. Further analysis of these compliance items has suggested that such repairs/modifications would consist of a large amount of cost and the potential benefit for these costs was not promising. Upon a request from SMR to begin the planning for a proposed facility, CDPHE agreed to extend the permit comments provided that a submitted schedule was followed. Attached as Exhibit "G" is correspondence from SMR to CDPHE that detail these conversations. It was also agreed that if SMR submit a schedule for compliance detailing the planning, design, and construction of the proposed WWTF, the compliance items, and their associated time to complete would be relaxed. Attached as Exhibit "H" is the above- mentioned schedule. Analysis of opportunities for consolidation of treatment works in accordance with the provisions of 22.3(1)(c), including those recommended in the water quality management plan, unless the approved water quality management plan recommends no consolidation. The geographic location of SMR in relation to other populated areas is at least four (4) miles downstream of Sunlight Mountain Resort. There are a few single family residences between SMR and Oak Meadows Subdivision. The Oak Meadows WWTF is approximately four miles downstream, and the terrain between the two facilities is quite mountainous and rugged. Any thought of consolidation with Oak Meadows would be impractical, due to the long collection system and tremendous expense through such rugged terrain. Evidence that the proposed site and facility operations will not be adversely effected by floodplain or other natural hazards. Where such hazards are identified at the selected site, the report shall describe means of mitigating the hazard. The facility is not located in a floodplain, and has no other natural hazards. The site is located on a south facing slope, and any natural hazards from snowfall and other weather related issues are minimized by the southern exposure to the site. Evidence shall be presented in the form of a report, containing soils testing results and design recommendations and prepared by a Professional Geologist and a Geotechnical Engineer, or by a professional meeting the qualifications of both Professional Geologist and Geotechnical Engineer, with an appropriate level of experience investigating geologic hazards, stating that the site will support the proposed facility. Enclosed as Exhibit "I" is an area geology and geologic cross section map and summary. Soils testing and design recommendations will be performed prior to facility design and plan and specification submission for the review per Chapter 1, section 1.1.0 of "Design Criteria Considered in the review of Wastewater Treatment Facilities, Policy 96-1". Detailed description of selected alternatives including legal description of the site, treatment system description, design capacities, and operational staffing needs. Attached as Exhibit "J" is a property ownership map. The proposed WWTF is located in the northeast corner of the NE 1/4 SW 1/4 Section 33, Township 7 South, Range 89 West. This parcel is owned by SMR. The proposed process for the Sunlight Mountain Resort WWTF will be an AeroMod activated sludge treatment process. Design calculations are attached as Exhibit "K". Also enclosed as Exhibit "L" is a letter signed by the owner's representative of SMR indicating that the owner is aware that CDPHE requires a variance from design criteria for the AeroMod process. Operational staffing will be provided by SMR personnel for day to day operations of the facility. SMR will contract with an operator for preparation of DMR's, and additional operations of the facility. Legal arrangements showing control of site for the project life or showing the ability of the entity to acquire the site and use it for the project life. Approval by the Division of an application for site approval shall not be deemed to be a determination that the proposed treatment works is or is not necessary, that the proposed site is or is not the best or only site upon which to locate such a treatment works, or that location of a treatment works on the site is or is not a reasonable public use justifying condemnation of the site. Approval by the Division shall only be deemed to be a determination that the site application meets the requirement of this regulation 22 (5 CCR 1002- 22). Since the proposed WWTF is located on propertly owned by Sunlight Mountain Resort, SMR will have control of the site for the project life. Institutional arrangements such as contract and/ or covenant terms which will be finalized to pay for acceptable waste treatment. At present, Sunlight Mountain Resort performs day to day operations, and contracts its reporting with Zancanella & Associates for its existing lagoon facility. Sunlight Mountain Resort intends to continue this relationship of providing day to day operations, and contracting its reporting with Zancanella & Associates, or any other qualified consultant it may choose. Please refer to Exhibit "B" , the agreement for Joint use of the Ski Sunlight WWTF, Article 1.0, Section 1.5 "Purpose of Agreement", Letter (c), "to provide a mechanism for the sharing of all operational, maintenance, repair, replacement, and expansion expenses and costs associates therewith..." Management capabilities for controlling the wastewater loadings within the capacity limitations of the proposed treatment works, i.e., user contracts, operating agreements, pretreatment requirements and or the management capabilities to expand the facilities as needed (subject to the appropriate, future review and approval procedures). Please refer to Exhibit "B" , the agreement for Joint use of the Ski Sunlight WWTF, Article 1.0, Section 1.5 "Purpose of Agreement", Letter (c), "to provide a mechanism for the sharing of all operational, maintenance, repair, replacement, and expansion expenses and costs associates therewith... " Financial system, which has been developed to provide for necessary capital and continued operation, maintenance, and replacement through the life of the project. This would include, for example, anticipated fee structure. At present, SMR has in place the "Joint Use Agreement" an agreement that clearly defines the responsibilities of all of the parties for water and wastewater use. A copy of that agreement is included as Exhibit "B". Implementation plan and schedule including estimated construction time and estimated start-up date. Please refer to Exhibit "II", which consists of a schedule from conceptual planning through facility start up. Exhibit "A" Sunlight Mountain Resort Existing WWTF Influent Flows Name Pages SMR Existing WWTF Influent Flows - Graph 1 SMR Existing WWTF Influent Flows - Data 2 Sunlight WWTF - Influent Flows o n o v o vi o o 0 0 0 0 0 6 0 6 6 6 6 6 taowl MOIJ 0 vn o 0 0 0 0 o o G 6 6 100Z -21V141 -1E ION -NW -1E 0008-AON-OE 000Z-d3S-O£ 000Z-1f1f-IE 000E -AWN -LE 000Z-XVW-IE 000E -NW -IC 666I-AON-O£ 6661-d3S-OE 6661-1f1f-IE 666l-AVW-IE 6661 -11M -IE 6661 -NW -IE 866 I-AON-O£ 866 I-d3S-OE 8661-1f1f-I£ 8661 -AV W -I£ 8661-11VW-I£ 8661-N Vf-1 £ L661-AON-OE L661-d3S-OE L661 -111f- I E L661 -AV W-lE L661 -11V161 -IE L661-NVf-1E 966 I-AON-O£ 9661 -LOS -OE 9661-1f1f-1f 966I -AVIA -If 9661 -M/161 -1E 966 I -NV f- I E 5661-A0N-0E 5661-d3S-OE 566 hlflf-1E 5661-A V W1 E 566 E-EVW-I£ 566 VNVf- 1£ P66 VAON-OE 4661-d3S-0£ 17661-1f V- I £ P661-AVW-IE 4661-NVW-IE 17661-NVf-IE Sunlight Mountain Resort Existing WWTF Flows Existing Permit 30,000 Gallons per Day Date Maximum Monthly Flow Average Monthly Flow % of Max. % of Avg. 31 -JAN -1994 0.0080 0.0050 26.7% 16.7% 28 -FEB -1994 0.0040 0.0028 13.2% 9.3% 31 -MAR -1994 0.0040 0.0032 13.3% 10.7% 30 -APR -1994 0.0014 0.0014 4.7% 4.7% 31 -MAY -1994 0.0010 0.0010 3.3% 3.3% 30 -JUN -1994 0.0110 0.0080 36.7% 26.7% 31-JUL-1994 0.0180 0.0107 60.0% 35.7% 31 -AUG -1994 0.0040 0.0100 13.3% 33.3% 30 -SEP -1994 0.0030 0.0030 10.0% 10.0% 31 -OCT -1994 0.0040 0.0030 13.3% 10.0% 30-NOV-1994 0.0280 0.0220 93.3% 73.3% 31 -DEC -1994 0.0530 0.0250 176.7% 83.3% 31 -JAN -1995 0.0450 0.0180 150.0% 60.0% 28 -FEB -1995 0.0180 0.0100 60.0% 33.3% 31 -MAR -1995 0.0340 0.0160 113.3% 53.3% 30 -APR -1995 0.0140 0.0080 46.7% 26.7% 31 -MAY -1995 0.0090 0.0045 30.0% 15.0% 30 -JUN -1995 0.0150 0.0058 50.0% 19.3% 31-JUL-1995 0.0166 0.0100 55.3% 33.3% 31 -AUG -1995 0.0170 0.0096 56.7% 32.0% 30 -SEP -1995 0.0120 0.0061 40.0% 20.3% 31 -OCT -1995 0.0156 0.0035 52.0% 11.7% 30-NOV-1995 0.0058 0.0017 19.3% 5.7% 31 -DEC -1995 0.0098 0.0012 32.7% 4.0% 31 -JAN -1996 0.0047 0.0014 15.7% 4.7% 29 -FEB -1996 0.0089 0.0046 29.7% 15.3% 31 -MAR -1996 0.0125 0.0073 41.7% 24.3% 30 -APR -1996 0.0076 0.0016 25.3% 5.3% 31 -MAY -1996 0.0092 0.0016 30.7% 5.3% 30 -JUN -1996 0.0180 0.0070 60.0% 23.3% 31-JUL-1996 0.0199 0.0009 66.3% 3.1% 31 -AUG -1996 0.0134 0.0092 44.7% 30.7% 30 -SEP -1996 0.0085 0.0058 28.3% 19.3% 31 -OCT -1996 0.0085 0.0036 28.3% 12.0% 30-NOV-1996 0.0011 0.0001 3.7% 0.3% 31 -DEC -1996 0.0344 0.0061 114.7% 20.3% 31 -JAN -1997 0.0218 0.0108 72.7% 36.0% 28 -FEB -1997 0.0190 0.0072 63.3% 24.0% 31 -MAR -1997 0.0396 0.0236 132.0% 78.7% 30 -APR -1997 0.0221 0.0166 73.7% 55.3% 31 -MAY -1997 0.0174 0.0155 58.0% 51.7% 30 -JUN -1997 0.0373 0.0206 124.3% 68.7% 31-JUL-1997 0.0189 0.0136 63.0% 45.3% 31 -AUG -1997 0.0215 0.0151 71.7% 50.3% Page 1 of 2 Sunlight Mountain Resort Existing WWTF Flows Existing Permit 30,000 Gallons per Day Date Maximum Monthly Flow Average Monthly Flow % of Max. % of Avg. 30 -SEP -1997 0.0283 0.0140 94.3% 46.7% 31 -OCT -1997 0.0159 0.0101 53.0% 33.7% 30-NOV-1997 0.0249 0.0167 83.0% 55.7% 31 -DEC -1997 0.0248 0.0171 82.7% 57.0% 31 -JAN -1998 0.0326 0.0212 108.7% 70.7% 28 -FEB -1998 0.0332 0.0232 110.7% 77.3% 31 -MAR -1998 0.0344 0.0251 114.7% 83.7% 30 -APR -1998 0.0208 0.0143 69.3% 47.7% 31 -MAY -1998 0.0182 0.0149 60.7% 49.7% 30 -JUN -1998 0.0213 0.0174 71.0% 58.0% 31-JUL-1998 0.0262 0.0228 87.3% 76.0% 31 -AUG -1998 0.0237 0.0162 79.0% 54.0% 30 -SEP -1998 0.0149 0.0120 49.7% 40.0% 31 -OCT -1998 0.0133 0.0102 44.3% 34.0% 30-NOV-1998 0.0107 0.0087 35.7% 29.0% 31 -DEC -1998 0.0209 0.0097 69.7% 32.3% 31 -JAN -1999 0.0189 0.0121 63.0% 40.3% 28 -FEB -1999 0.0194 0.0145 64.7% 48.3% 31 -MAR -1999 0.0232 0.0169 77.3% 56.3% 30 -APR -1999 0.0141 0.0081 47.0% 27.0% 31 -MAY -1999 0.0175 0.0109 58.3% 36.3% 30 -JUN -1999 0.0203 0.0148 67.7% 49.3% 31-JUL-1999 0.0228 0.0173 76.0% 57.7% 31 -AUG -1999 0.0232 0.0170 77.3% 56.7% 30 -SEP -1999 0.0233 0.0160 77.7% 53.3% 31 -OCT -1999 0.0162 0.0106 54,0% 35.3% 30-NOV-1999 0.0193 0.0072 64.3% 24.0% 31 -DEC -1999 0.0181 0.0081 60.3% 27.0% 31 -JAN -2000 0.0241 0.0121 80.3% 40.3% 29 -FEB -2000 0.0351 0.0208 117.0% 69.3% 31 -MAR -2000 0.0311 0.0215 103.7% 71.7% 30 -APR -2000 0.0244 0.0141 81.3% 47.0% 31 -MAY -2000 0.0294 0.0120 98.0% 40.0% 30-J1.JN-2000 0.0275 0.0155 91.7% 51.7% 31-JUL-2000 0.0296 0.0140 98.7% 46.7% 31 -AUG -2000 0.0288 0.0161 96.0% 53.7% 30 -SEP -2000 0.0326 0.0122 108,7% 40.7% 31 -OCT -2000 0.0125 0.0091 41.7% 30.3% 30-NOV-2000 0.0193 0.0071 64.3% 23.7% 31 -DEC -2000 0.0186 0.0101 62.0% 33.7% 31 -JAN -2001 0.0179 0.0102 59.7% 34.0% 28 -FEB -2001 0.0141 0.0093 47.0% 31.0% 31 -MAR -2001 0.0281 0.0142 93.7% 47.3% Page 2 of 2 Exhibit "B" Joint Use Agreement Name Pages Joint Use Agreement 13 AGREEMENT FOR THE JOINT USE OF THE SKI SUNLIGHT WASTEWATER TREATNIMiT FACILITY THIS AGREEMENT is made, entered into and effective the day, month and year of the dace of the last acknowledgement appearing hereinafter by and between SRI SUNLIGHT, INCORPORATED, a Colorado Corporation, the owner and operator of the Ski Sunlight Ski Area in Garfield County, Colorado (hereinafter "Ski Sunlight"), SUNLIGHT INTERNATIONAL, a Limited Partnership (hereinafter "Sunlight Inn"), and THE BRETTELBERG CONDOMINIUM ASSOCIATION, INC., a non-profit Colorado corporation (hereinafter "Brettelberg"). WITNESSETH: RECITALS: 1.1 property Article 1.0 SRI SUNLIGHT. Ski Sunlight situate in Garfield County, Township 7 South, Range 89 is the owner of certain real State „f Colorado, to -wit: West, 6th P.M. Section 33: SASWh, ASA, SEhNWk, and SANW1/4 (except WhWhSANW1/4) with certain pertinent exceptions which will be identified hereinafter, upon which is situate the Ski Sunlight Ski Area, in part,_and upon which is situate the Ski Area's day -lodge including restaurant, bar and public sanitary facilities. 1.2 SUNLIGHT INN. Sunlight Inn is the owner of a lodge providing overnight accommodations for guests, restaurant and bar. This lodge is situate upon real property within the above-described lands (Paragraph 1.1 hereinabove) which are more particularly described in that certain Warranty Deed, dated September 29, 1972, and recorded October 3, 1972 as Reception No. 255525 in Book 436 at Page 215 in the office of the Clerk and Recorder, Garfield County, Colorado. 1.3 BRETTELBERG. Brettelberg is a condominium established pursuant to the laws of the State of Colorado and pursuant to that certain Condominium Declaration for Brettelberg Condominiums (as amended), dated July 24, 1973, and recorded July 30, 1973 as Reception No. 259395 in Book 448 at Page 17 in the Office of the Clerk and Recorder, Garfield County, Colorado. The Association is a non-profit Colorado corporation formed to collectively represent the individual condominium unit owners under the laws of the State of Colorado. The Certificate of Incorporation and the Articles of Incorporation of the Association are recorded as Reception No. 258672 in Book 445 at Page 424 in the Office of the Clerk and Recorder, Garfield County, Colorado. 1.4 WASTEWATER TREATMENT FACILITIES. There has heretofore been constructed on, over and across the lands of Ski Sunlight certain sewage outfall and collection lines, manholes and a wastewater treatment facility consisting of the features described in the report dated June, 1988, prepared by Waste Engineering, Inc. entitled "Basis of Design Report: Ski Sunlight, Inc. Wastewater Management System.". Such facilities presently serve Ski Sunlight, the Sunlight Inn and the Brettelberg. 1.5 PURPOSE OF AGREEMENT. It is .the desire of the parties, by entering into this agreement to (a) specifically set forth the rights and obligations of the parties with respect to their joint use of the wastewater treatment facility; (b) to memorialize the system presently being utilized -for the administration and operation of the facility; and (c) to provide a mechanism for the sharing of all operational, maintenance, repair, replacement, and expansion expenses and costs associated therewith, including, but not limited to, the employment of outside parties as necessary to assist and advise Ski Sunlight in its obligations hereunder and to provide for the payment of all costs required to be paid in accordance with all applicable federal, state, and local laws and regulations. NOW, THEREFORE, the parties hereto, in consideration of the foregoing recitals and the terms, conditions and covenants to be kept and performed as hereinafter provided, hereby agree to the following: Article 2.0 OUTFALL LINES 2.1 RIGHT-OF-WAY, USE. Ski Sunlight hereby grants to Sunlight Ihn, and the Brettelberg (for the use and benefit of its members), as their respective interests may exist, an easement and right-of- way fifteen (15) feet in width over and across lands owned by Ski -2- Sunlight for the use and maintenance.of the sewage outfall and collection lines, manholes and other appurtenant facilities as the same are now constructed and in place, extending from the Sunlight Inn and the Brettelberg to the present terminus thereof, namely the wastewater treatment facility as the same is presently constructed and in place. - With the prior approval and written consent of Ski Sunlight, said outfall and collection lines, manholes 'and other appurtenant facilities may be relocated, enlarged or replaced; provided, however, that said easement and right-of-way, as now constructed and in place, or as the same may be relocated or replaced, shall be non-exclusive in that the burden thereby and hereby placed on said lands shall never deprive Ski Sunlight of the use thereof conjunctively with and over and upon such easement and right -or -way for sewage or other purposes; provided, further, that Ski Sunlight, at its sole option -and expense and its absolute discretion, may hereafter relocate and reinstall, or cause to be relocated or reinstalled, the whole or any part of said sewage outfall or collection lines, manholes and other appurtenant facilities as the same may be constructed and in place, or rernnstructed or reinstalled, together with any_ and all lines used in connection therewith, and any feature or unit of the wastewater treatment facility, or any equipment used in connection therewith, whether as nroGently constructed in place or as reconstructed in a different location or configuration. In the event of such relocation, Ski Sunlight shall grant to Sunlight Inn, and'the Brettelberg as their interests may appear, an easement or right-of-way for the relocated facilities to the same extent and for the same purpose as herein, agreed upon for facilities now constructed and in place, and Sunlight Inn, and the Brettelberg as their interest may appear shall quit claim back co Ski Sunlight any and all rights-of-way for facilities which may be reconstructed or reinstalled. Article 3.0 TREATMENT FACILITIES 3.1 LOCATION. Ski Sunlight has heretofore constructed, or caused to be constructed, the wastewater treatment facility, for the treatment of sewage originating at the Ski Sunlight day -lodge, the Sunlight Inn and the Brettelberg, which facilities are generally located within and situate upon the following described lands: -3- Township 7 South, Range 89 West, 6th P.M. Section 33: NEhNEhSW$ 3.2 GRANT. Ski Sunlight hereby grants to Sunlight Inn, and the Brettelberg the right to use non -exclusively with Ski Sunlight the wastewater treatment facility, presently constructed and in r -'- ace , consisting of the features described in the report of Waste Engineering, Inc., referenced above; subject to the provisions of this Agreement. The right hereby granted is intended by Ski Sunlight to be a covenant running with the land described in the previous Paragraph 3.1.• Article 4.0 EASEMENT SURVEYS 4.1 LOCATION OF EASEMF"'rS. Sunlight Inn and the Brettelberg have obtained centerline descriptions of the sewage outfall or collection lines presently constructed and in place, which extend from the Sunlight.Inn and the Brettelberg and terminate in the presently constructed wastewater treatment facilities. (KKBNA, Ski Sunlight Existing Wastewater Facilities dated August 3, 1981, job #7075.01). Article 5.0 OPERATIONS 5.1 Ski Sunlight shall have full and sole authority for the operation of the wastewater treatment facility and the sewage lines and collection systems, as the same are presently constructed and in place (or as the same may be relocated, supplemented, augmented, or replaced as hereinabove provided). Ski Sunlight covenants and agrees to operate the wastewater treatment facility in a good and workmanlike manner in compliance with all applicable operating criteria, and in compliance with all applicable federal, state and local laws and regulations, including, but not limited to, the terms of Discharge Permit Number CO -0038598 issued to the facility on December 21, 1987, by the Water Quality Control Division of the Colorado Department of Healthand all amendments, modifications, renewals or extensions thereof. Ski Sunlight shall pay all of the costs and expenses, of whatsoever kind or nature, of operating, repairing, and maintaining the wastewater treatment facility in good and workmanlike condition and in compliance with all applicable laws and regulations, and all real property taxes which -4- may be assessed against the land upon which the wastewater treatment facility is located. The other parties to this agreement covenant and agree that they shall promptly reimburse Ski Sunlight for their proportionate share of such costs and expenses in accordance with the provisions ur :,Lucie 6.0 of Lids Agreement. - 5.2 Ski Sunlight, in its sole discretion, may employ outside parties, such as engineers, consultants, attorneys, operations specialists, and the like, to advise and assist Ski Sunlight in operating the wastewater treatment facility in a good and workmanlike manner and to perform the other functions required of Ski Sunlight under this Agreement. Ski Sunlight shall also be entitled to make use of its own employees or equipment in performing its responsibilities under this Agreement and shall charge therefor the normal hourly rate for such employees and a reasonable market rate for the use of such equipment. The fees for all such services shall be allocated among the parties hereto in the same manner as the other costs of operating the system. Article 6.0 ADMINISTRATION 6.1 The overall supervisory power over the entire wastewater system shall at all times be vested in and the responsibility of Ski Sunlight. 6.2 The cost, maintenance, repair and all other expenses of the sewage outfall or collection lines to the point of intersection or joinder with a common or jointly used line, shall be the exclusive responsibility of and shall be maintained by, and at the sole expense, of the party (or entity) utilizing the same; 6.3 The cost, maintenance, repair and all other expenses of the sewage outfall or collection lines used by two or more parties shall be the joint responsibility (in n---'nrtion of actual use or burden thereon) and shall be maintained by, and at the sole ompcnza, of such parties (or entities) utilizing the same; 6.4 All costs and expenses incurred on account of the operation, maintenance, repair, replacement or expansion of the wastewater facility shall be borne by the parties hereto in proportion to their use of and burden upon the facility. The manner of determining each party's proportionate use of the facility and the mechanism for each party to reimburse Ski Sunlight -5- for that j._f;'s proportionate share of the co5Ls and expenses of the system shall be as set forth in this paragraph. ;_; ^'TERMINATION OF USE OF FACILITY. The parties hereto agree that a fair method of determining their proportionate use of the wastewater treatment facility is to measure the amount of in- house domestic water utilized by each party. To that end, each party has heretofore calked a measuring device (meter) to be installed upon their in-house domestic water service line. The meters are located as follows: (i) Ski Sunlight's meter is located at the pump house situate near the southeast corner of the day lodge building. (ii) Brettelberg'.. .uc.cr la ';;,;sated at the Brettelberg's well head. (iii) Sunlight Inn's meter is located in the building's mechanical room, near where the in-house domestic water line enters the building. At.the beginning of each month, Ski Sunlight shall cause a reading to be made of the three meters aforesaid. Each party's proportionate use of the wastewater treatment facility for a particular month shall be equal to that party's proportionate use of domestic water during such month as determined from the actual meter readings and expressed as a percentage of the total amount of in-house domestic water utilized by all parties to this agreement during such month. It shall be the responsibility of each party to this Agreement to maintain his individual meter in good L '- I-` any party fails to do so and said meter becomes inoperative or inaccurate, then that party's proportionate use of the wastewater treatment facility for any such month that the meter is inoperative or inaccurate shall be deemed to be the greatest proportionate use by that party during the preceding twelve months. (b) REIMBURSEMENT TO SRI SUNLIGHT. As administrator and operator of the wastewater treatment facility, Ski Sunlight shall pay all costs associated therewith as provided in Article 5.0 of this Agreement. At the beginning of each month, Ski Sunlight shall submit an invoice to the Brettelberg and the Sunlight Inn, charging them for their proportionate share of the preceding month's costs and expenses as determined by such preceding month's proportionate use of the wastewater treatment facility. No later than thirty (30) days following receipt of such invoice, Sunlight Inn and -6- Brettelberg shall remit the appropriate amount to Ski Sunlight. Ski Sunlight shall retain all supporting documentation for the invoices sent to the Brettelberg and the Sunlight Inn and make the same available for examination and verification by the Brettelberg and Sunlight Inn during all reasonable hours during said thirty day period. (c) CAPITAL EXPENDITURES OF MORE THAN TEN THOUSAND DOLLARS. The foregoing system shall be utilized for the reimbursement of all costs and expenses associated with the ongoing operation and routine maintenance and repair of the wastewater treatment facility. The parties agree and acknowledge, however, that the need for significant capital expenditures upon the system will be due to the prolonged use of the system and that the burden thereof should fall upon the parties in proportion to their use of and burden upon the wastewater treatment facility determined over a period of time longer than the monthly period• set forth for operational expenses. The parties therefore agree that each party's proportionate share of significant capital expenditures, which for purposes of this agreement are defined as capital expenditures costing more than Ten Thousand Dollars ($10,000.00), shallbe determined by calculating each party's actual percentage of in-house domestic water use over the twenty-four (24) months immediately preceding the significant capital expenditure. Determination of each party's actual in-house domestic water use over such twenty-four month period shall be made by utilizing the actual meter readings over that period of time. The method of reimbursement of significant capital expenditures shall be the same as that set forth in paragraph 6.4(b) above, provided, however, that in the event of a proposed significant capital expenditure, Ski Sunlight shall first notify the other parties to this Agreement of such proposed significant capital expenditure, and said parties shall thereafter have a period of thirty (30) days to state their objections. In the event such objections cannot be resolved among the parties, the need or necessity for such proposed significant capital expenditures shall be submitted to arbitration as provided in Article 9.0 hereof, except that any significant capital expenditure which is required so as to remain in compliance with any applidable federal,'state or local law, regulation or permit shall be presumed necessary by the parties to this Agreement and the arbitrator. 6.5 The parties to this Agreement acknowledge that any or all of them may t4=cire to make expansions of or changes to their existing improvements or construct additional improvements (hereinafter collectively referred to as "additional improvements") -7- upon the lands owned by them. Prior to making any such additional improvements, the proponent thereof shall first notify Ski Sunlight of its plans so to do, to enable Ski Sunlight, or such consultants as it may retain to assist with its decision, to make a determination of whether the additional improvements will require an expansion, enlargement, relocation or other significant modification to the wastewater treatment facility. So long as the additional improvements do not requiresuch expansion or significant modification to the wastewater treatment facility, the additional burden upon the system caused by the .additional improvements will be reflected by that party's proportionate use of in-house domestic water and, therefore, that party will thereafter pay a greater proportionate share of the costs and expenses of operating and maintaining the system. However, if it is determined by Ski Sunlight that the additional improvements proposed by any party to this agreement will necessitate an expansion, enlargement, relocation or other significant modification to the wastewater treatment facility, then such additional improvements may not be constructed so as to make use of the wastewater treatment facility absent the unanimous consent of all parties to this agreement, which consent shall be granted so long as the party proposing to construct the additional improvements pays 100% of all costs and expenses incurred on account of the expansion., enlargement, relocation, or other significant modification to the wastewater treatment facility. Such costs and expenses shall be paid directly by the party responsible therefor as and when they become due. Any party in disagreement with Ski Sunlight's determination that proposed additional improvements will necessitate an expansion, enlargement, relocation or other significant modification to the wastewater treatment facility, or otherwise aggrieved by the decisions of the parties with respect to the proposed additional improvements, may request that the matter be submitted to arbitration in accordance with Article 9.0 of this Agreement. 6.6 All divided costs and expenses of the system as it presently exists or as it may hereafter be modified or expanded to meet the needs of the parties shall be paid promptly by the parties as provided in Paragraph 6-.4 above. Until paid, such costs and expenses shall be a lien on and against the property served, and such lien may be foreclosed by Ski Sunlight in the same manner as provided by the laws of the State of Colorado for the foreclosure of mechanic's lien. In addition to the remedy of foreclosure Ski Sunlight has the right, after the expiration of the 30 day perioa referred to in paragraph 6.4(b) above, to discontinue service by plugging the on+fall line of any party who is delinquent in the payment of his divided share of costs and expenses. -8- 6.7 The parties to this Agreement acknowledge the possibility that outside individuals or entities, Hot presently parties to this Agreement nor utilizing the wastewater system, may some day request the right and opportunity to make use of the system. In such event, suchoutside parties shallmake application so to do to Ski Sunlight. Ski Sunlight shall then notify the other parties to this Agreement of such application and the parties hereto shall confer and jointly establish a system improvement fee, also known as a tap fee, to be charged the outside party desiring to make use of the wastewater system. In setting such system improvement fee it shall be the object of the parties hereto to determine a fee which fairly and reasonably reflects all costs and expenses to the system, including the full cost of any expansion, enlargement, relocation or other significant medifiLaLion to the wastewater treatment facility, which will be incurred on account ofthe burden to be placed upon the system by the applicant for service.- Before such applicant for service can hook up to and make use of the wastewater system, he shall fully pay the system improvement fee set by the parties hereto and shall execute and become a party to this Agreement. Article 7.0 WITHDRAWAL, TERMINATION AND ABANDONMENT 7.1 If any party to this agreement wishes to, discontinue its use of the wastewater treatment facilities, it may do so upon six months' written notice to the other parties to this agreement and said terminating parties' liability for cost shall terminate at the expiration of said six month period, provided that said terminating party has previously quit claimed to Ski Sunlight all rights it acquired from Ski Sunlight pursuant to this agreement to use the real property of Ski Sunlight. 7.2 In the event that Ski Sunlight wishes to terminate its use of the facility, it may do so upon six months' notice to the other parties provided however that if the other parties wish to continue their use of the wastewater treatment facility, they may do so. In such event, if any of the other parties wish to continue their use of the wastewater treatment facility, Ski Sunlight shall grant L., such other parties the right to continue to utilize the wastewater treatment facility provided said other parties accept the supervisory, administrative 'and operating responsibility for the wastewater treatment facilities, and to bear the cost of maintenance, repair and all other expenses of the wastewater -9- treatment facilities, and to bear the, cost of maintenance, repair and all other expenses of the sewage outfall or collection lines and the wastewater treatment facility. Ski Sunlight shall grant to other parties an easement to maintain the wastewater treatment facility and the lines for so long as they utilize the wastewater treatment plant subject to Ski Sunlight's rights to relocate the system as provided hereinabove. 7.3 Title to the subject property and all improvements thereon Shall remain in Ski Sunlight subject to the easements referred to above. Upon the cessation from use of all the parties to this agreement except Ski Sunlight, all rights in the system of these parties other than Ski Sunlight shall terminate and the easements referred to in Paragraph 2.1 above shall revert to Ski Sunlight. Article 8.0 DURATION AND BINDING EFFECT 8.1 This agreement and its benefits and burdens shall endure for so long as the parties or any of them are using the wastewater treatment facility. The benefits and burdens of this agreement shall be owned by and imposed upon the heirs, successors and assigns of any of the parties hereto. The easements granted and established hereby shall be covenants running with the land for the duration of this agreement. Article 9.0 ARBITRATION 9.1 In the event that any dispute arises under this agreement which cannot be otherwise res.J1.cd, then ouch disputes shall be determined by arbitration. In the event of such dispute, any party to this agreement shall petition the Chief Judge of the Ninth Judicial District, or in his absence the presiding Judge thereof, to designate an unbiased and disinterested person to serve as the arbitrator of the dispute. The arbitrator shall then promptly proceed to hear evidence and arguments concerning said dispute. The hearing conducted by the arbitrator shall be conducted in accordance with the applicable rules of the American Arbitration Association, however, the arbitration proceeding need not, unless -10- the arbitrator so named shall so elect, be administered by the American Arbitration Association. The arbitrator shall determine the dispute by written decision as rapidly as possible after the hearing, and the decision of the arbitrator shall be final and binding upon all of the parties hereto. The decision of the arbitrator may, if any party hereto desires, be filed with the District Court of Garfield County, Colorado, together with a Certified coy of this Agreement and a true and correct copy of the Court's Order appointing the arbitrator, pursuant to Rule 109 of the Colorado Rules of Civil Procedure, so that judgment may enter thereon as providPri by said Rule. 9.2 The arbitrator shall have the power if he deems it just and fair, to award to any party or parties to Lbe arbitration proceeding any part or all of their attorney's fees incurred therein. Article 10.0 MISCELLANEOUS 10.1 This agreement is intended to and shall upon the execution hereof supersede, replace, and invalidate the Sewer Service Agreement dated June 23, 1976, and recorded in the records of Garfield County, Colorado on October 24, 1983, in Book 637, Page 828, as Reception No. 346847. By their signatures hereon, the parties hereto swear and affirm that they are the lawful successors in interest to all parties of the aforesaid Sewer Service Agreement and the properties described therein, and that upon their execution hereof this Agreement supersedes and replaces said Agreement and renders the same null and void. This Agreement contains the entire, complete and exclusive. Agreement of the parties with respect to the subject matter hereof. 10.2 This Agreement may not be modified unless such modification is in writing and signed by all parties hereto. _ 10.3 This Agreement may be executed in any number of counterparts with the same effect as if the signatures hereto were upon the same instrument. Only one counterpart executed by the party to be charged need be produced by any party as evidence of this Agreement. -11- 10.4 The parties hereto agree that upon execution hereof, a copy of this Agreement shall be recorded in the records of Garfield County, Colorado. 10.5 In the event'any part of this Agreement is found to be' void, the remaining provisions of this Agreement shall nevertheless be binding with the same effect as though the ,void part was deleted. 10.6 Unless the context clearly indicates the contrary, the singular number shall include the plural, the plural the singular and the use of any gender shall be applicable to all genders. IN WITNESS WHEREOF, the parties hereto have signed this Agreement on the dates set aside each signature. . EXECUTED this — day of , 1991. SRI SUNLIGHT, INC. A COLORADO CORPORATIOI By President ATTEST: Secretary STATE OF COLORADO ) ) ss. COUNTY OF The foregoing instrument was acknowledged this _ day of 1991, by ., as President, and by as Secretary. My commission expires: -12- THE BRETTELBERG CONDOMINIUM ASSOCIATION, INC. • By President ATTEST: Secretary STATE OF COLORADO -) ) ss. COUNTY OF ) The foregoing instrument was.acknowledged this day of 1991, by , as President, and by as Secretary. My commission expires: SUNLIGHT INTERNATIONAL, LIMITED PARTNERSHIP By General Partner STATE OF COLORADO -) ss. COUNTY OF The foregn+ng instrument was acknowledged this day of 1991, by , as General Partner. My commission expires: -13- Exhibit "C" Sunlight Mountain Resort Existing Site Assement Name Pages Existing Site Assessment Report 30 SCHMUESER GORDON MEYER ENGINEERS & S R V E V O R S _._zNWG' SPRINGS ASPEN 118 W. 6TH. SUITE 200 P.O. BOX 2155 GLENWOOD SPRINGS, CO 81601 ASPEN. CO 81612 970-945-1004 970-925-6727 FX: 970-945-5948 FX: 970-925-4 157 Sunlight WWTF Existing Site Assessment Saturday, December 8, 2000 Prepared by Greg Schroeder, P.E. Page 1 of 13 Summary Sunlight Mountain Resort owns and operates a 30,000 gallon per day (gpd) aerated lagoon wastewater treatment facility ("WWTF"). Sunlight has Service agreements with the Brettelburg Inn, Sunlight Inn, and the Brigham Residence to allow these parties to use the facility for sanitary sewer services. According to Colorado Department of Public Health and Environment ("CDPHE") regulations, when an existing WWTF reaches an "action level" it is required to enter a planning process to accommodate a future expansion, to handle these increasing loads. These "action levels" were triggered during the 1997-1998 season. The action levels were not triggered in the next two seasons. The action levels are at 80% of plant capacity, the WWTF shall enter into a planning phase for the WWTF's accomidation of higher flows. At a level of 95% of plant capacity, the WWTF shall be in active construction of a larger WWTF. A WWTF is allowed to discharge by means of a discharge permit. The discharge permit is specific to any WWTF and is issued by CDPHE under the Colorado Discharge Permit System ("CDPS") The discharge permit is valid for four (4) years, at which time it must be reapplied for and reissued. The permit renewal was submitted to CDPHE on April 3, 1998. On November 10, 2000 a draft permit renewal was received. Thirty (30) days are provided for public comment, after such time CDPHE will review any comments and finalize the discharge permit. The draft discharge permit has a compliance schedule section, which lists items that need to maintained, repaired, or added to meet the discharge permit compliance. On the compliance schedule, there is an item inquiring on the allowable leakage rate of the lagoon ponds. Lagoons are normally allowed a small leakage amount. Based upon the observations of the WWTF by the operations personnel, and preliminary calculations, it is believed that the suspected second pond is leaking approximately one hundred (100) times its allowable rate. Due to the magnitude of implications with the leaking pond, a letter was sent to CDPHE requesting an extension to the thirty (30) day comment period to ninety (90) days. The extension request was granted by CDPHE. In this time, the Sunlight Inc. Board of Directors is currently analyzing the proposed alternatives regarding repairing the existing pond to constructing a new facility, and the cost implications of such. Page 2 of 13 I. Facility History The Sunlight Mountain Resort Waste Water Treatment Facility ("WWTF") was originally constructed in 1966 and included a series of three ponds without aeration and without any surface discharges to Four Mile Creek. Aeration equipment was added to the first aeration lagoon to improve the treatment for direct discharge to Four Mile Creek. Aeration equipment was added to the second pond at a later date. The WWTF is owned by Sunlight Inc. The WWTF is operated by Sunlight staff, and Zancanella and Associates, Inc. Sunlight Inc. has service agreements in place with the Brettelberg Inn, Sunlight Inn, and the Brigham Residence to allow them to use the facility for their sanitary sewer services. A Colorado Discharge Permit System ("CDPS") discharge permit was issued to the facility (CDPS # CO -0038598) on December 21, 1987 by the Water Quality Control Division ("WQCD") of the Colorado Department of Public Health and Environment ("CDPHE"). The permit allowed for the direct discharge from the facility to Four Mile Creek with limits on flow, pH, Biochemical Oxygen Demand ("BOD5"), Total Suspended Solids ("TSS"), fecal coliform bacteria ("FC"), Total Residual Chlorine ("TRC"), total ammonia ("NH3"), and oil and grease. Due to operational difficulties and the increased stringent standards in the discharge permit; ammonia being the most difficult parameter to meet, made the plant impractical to meet the water quality standards with the existing facility. Water Quality effluent violations had occurred in 1985, 1986, 1987, and 1988. Water Quality measurements taken by CDPHE in January and February 1988 confirmed this and a Notice of Violation and Cease and Desist Order was mailed to Ski Sunlight, Inc. on May 11, 1988. The Cease and Desist order required that Ski Sunlight, Inc. comply with a schedule of construction and modifications to bring the plant into compliance with the discharge permit prior to the 1988 ski season, or October 30, 1988, whichever comes first. Improvements were made to the facility in 1988 to comply with the cease and desist order from CDPHE. These improvements included the following items: Process Description Manual Bar Screen Removes large solids and other inorganics that could interfere with process equipment Influent Measuring Flume Measuring device for determining the instantaneous flow rate into the facility Aeration Lagoon (Cell 1) Lined aeration lagoon will increases detention time to increase reliability Aeration Equipment for Cell 1 Increased capacity for BOD5 removal and Ammonia removal Chlorine contact tank Allows for proper disinfection prior to discharge Increased Settling Pond Allows for a better Total Suspended Solids ("TSS") control, dechlorination and an operating sump for the effluent snowmaking/irrigation system (see below) Page 3 of 13 V -Notch Weir on. discharge piping Allows for direct measurement of discharge into Four Mile Creek Snowmaking/Irrigation Pump & Meter Submersible pump installed in sump in settling pond with inline meter allows for pumping and flow measurement. Monitoring Wells Utilized to measure the groundwater quality of the land application snowmaking/irrigation areas. II. Facility Description The Sunlight Mountain Resort Waste Water Treatment Facility ("WWTF") is a four cell aerated lagoon plant, with discharge points to Four Mile Creek, and to an onsite storage pond utilized for land application. The plant is rated for 30,000 gpd flowrate. (0.03 MGD), and organic loading of 63 lbs. per day. The table shown below details the facility processes: Process Name Description Bar Screen 24" W, 1/4" Bars, 1" Spacing Influent Flow Measuring 2" Parshall Flume, w/ continuous recorder Lagoon #1 320,000 Gallon, 10' Depth, td=10.67 Days Aeration (Lagoon #1) 6 Static Tube aerators on a 3Hp Blower, plus one 5Hp Floating aerator Lagoon #2 192,000 Gallon, 9' Depth, td=6.4 Days Aeration (Lagoon #2) 4 Static Tube aerators on a 3Hp Blower, plus one 2Hp Floating aerator Polishing Pond 65,000 Gallon, 5' Depth, td=2.17 Days Chlorination 150# gas cylinders Chlorine Contact Chamber 1250 Gallon Septic Tank w/ extra baffles, L/W Ratio = 44:1, td=60 Minutes (30 Minutes (rJ Peaking factor of 2) Storage Pond 60,000 Gallon, 4' Depth, td=4 Days Effluent Flow Measuring 90° V -notch weir in effluent pipe to creek Snowmaking/h-rigation Area 1 - 100gpm submersible pump and portable nozzle, 1.8 Acre hillside with runoff control Ground Water Monitoring 2 wells above and 4 wells below the snowmaking/irrigation areas. The facility operates under Colorado Discharge Permit System ("CDPS") Permit # CO -0038598, Garfield County. The facility currently does not discharge into Four Mile Creek, but discharges into the storage pond and then land applies the effluent by the submersible pump and nozzle to the land application area. The facility is designed to meet secondary discharge standards, as well as strict ammonia standards for discharge to Four Mile Creek. The ammonia standard provides the prime reason for the two discharge points. For the months of November through May, when the ammonia effluent limit is at its highest value, the plant could discharge to Four Mile Creek provided that the ammonia standard is met. For June through October, when the allowable ammonia effluent limits are at a minimum, the plant discharges through its alternative discharge point, the settling pond snowmaking/irrigation land application. Without the land application, the plant would be out of Page 4 of 13 compliance during the low ammonia discharge months. Historically, the plant has never discharged to Four Mile Creek, and has used the snowmaking/irrigation land application since the system was installed. III. Existing Flows The following table summarizes the monthly influent flows to the WWTF. Two columns are shown, the Average Dai y Flow (ADF) and a Maximum Daily Flow (ADF). (See Exhibit A-1) Date ADF [gpol MDF [gpd] % Total Capacity @ADF % Total Capacity @MDF 1998JAN 21,200 32,600 70.7% 108.7% 1998FEB 23.200 33,200 77.3% 110.7% 1998MAR 25,100 34,400 83.7% 114.7% 1998APR 14,300 20,800 47.7% 69.3% 1998MAY 14,900 18,200 49.7% 60.7% 1998JUN 17,400 21,300 58.0% 71.0% 19981UL 22,800 26,200 76.0% 87.3% 1998AUG 16,200 23,700 54.0% 79.0% 1998SEP 12,000 14,900 40.0% 49.7% 1998OCT 10,200 13,300 34.0% 44.3% 1998NOV 8,700 10,700 29.0% 35.7% 1998DEC 9,700 20,900 32.3% 69.7% 1999JAN 12,100 18,900 40.3% 63.0% 1999FEB 14,500 19,400 48.3% 64.7% 1999MAR 16,900 23,200 56.3% 77.3% 1999APR 8,100 14,100 27.0% 47.0% 1999MAY 10,900 17,500 36.3% 58.3% 1999JUN 14,800 20,300 49.3% 67.7% 1999JUL 17,300 22,800 57.7% 76.0% 1999AUG 17,000 23,200 56.7% 77.3% 1999SEP 16,000 23,300 53.3% 77.7% 1999OCT 10,600 16,200 35.3% 54.0% 1999NOV 7,200 19,300 24.0% 64.3% 1999DEC 8,100 18,100 27.0% 60.3% 2000JAN 12,100 24,100 40.3% 80.3% 2000FEB 20,800 35,100 69.3% 117.0% 2000MAR 21,500 31,100 71.7% 103.7% 2000APR 14,100 24,400 47.0% 81.3% 2000MAY 12,000 29,400 40.0% 98.0% 2000JUN 15,500 27,500 51.7% 91.7% 2000JUL 14,000 29,600 46.7% 98.7% 2000AUG 16,100 28,800 53.7% 96.0% 2000SEP 12,200 32,600 40.7% 108.7% Page 5 of 13 Inspection of the data indicates that the facility sees seasonal peaks. which are closely related to the ski season. (See Exhibit A-2) Typically, the months of October through December show low flows, and the months of January, February, and March typically show a rising trend, with March having the highest flows. The high peaks in March are probably caused by an increase of both day and overnight skiers during "Spring Break" times. This time period puts a higher load on the facility due to the day and overnight skiers utilizing the facility on weekdays, rather then the typical weekend Loads seen over the rest of the ski season. The months of April and May tend to have lesser flows than March, possibly due to less day and overnight skier visits as the season approaches its end. The months of May, June, July, and August generally show an increase in flows. This is probably due to groundwater infiltration in the sewer collection system. The amount of infiltration may be significant, as seen in the following table: Date WWTF Influent lgpd) Water Usage lgpd] Difference lgpd) % of Capacity BOD lmWI.1 1998JAN 21,200 18,565 2,635 9% 162 1998FEB 23,200 18,406 4,794 16% 104 1998MAR 25,100 18,827 6,273 21% 120 1998APR 14,300 5,303 8,997 30% 204 1998MAY 14,900 4,361 10,539 35% 23 1998JUN 17,400 7,742 9,658 32% 35 1998JUL 22,800 10,665 12,135 40% 110 1998AUG 16,200 7,921 8,279 28% 148 1998SEP 12,000 8,158 3,842 13% 100 19980CT 10.200 6,693 3,507 12% 44 1998NOV 8,700 7,097 1,603 5% 36 1998DEC 9,700 12,556 -2,856 -10% 56 1999JAN 12,100 14,243 -2,143 -7% 272 1999FEB 14,500 14,041 459 2% 216 1999MAR 16,900 18,826 -1,926 -6% 80 1999APR 8,100 6,689 1,411 5% 132 I999MAY 10,900 4,907 5,993 20% 92 1999JUN 14,800 8,406 6,394 21% 88 1999JUL 17,300 7,521 9,779 33% 148 1999AUG 17,000 9,236 7,764 26% 104 1999SEP 16,000 9,863 6,137 20% 88 19990CT 10,600 5,086 5,514 18% 120 1999NOV 7,200 4,408 2,792 9% 292 1999DEC 8,100 10,384 -2,284 -8% 112 The above table compares the influent flows to the WWTF with the sum of the water meters for the Sunlight Inn, the Brettelberg Inn, the Brigham Residence, and the Sunlight Day Skier Lodge. (See Exhibit A-3)From inspection of the data, large differences are seen during the spring and summer months in the water meter readings compared to the influent flows to the WWTF. The most probable explanation for the differences would be the infiltration of groundwater into the sewer collection system. This argument is further reinforced by the low concentrations of BODS Page 6 of 13 shown in the spring months, when the infiltration in the sewer system is diluting the strength of the wastewater. IV. Performance / Regulatory Compliance Since the 1988 facility upgrades, the plant has not been using its discharge to Four Mile Creek, but been discharging to the snowmaking/irrigation facility. A sampling point referred to in the discharge permit as 002A is located after the chlorine contact chamber and prior to entering the storage pond. Exhibit A-4 graphically shows the BOD; Concentration at this sampling point. From inspection of the data, it can be seen that during the ski season months when the organic and hydraulic loading are at their higher values, the plant is meeting the required BOD5 parameters, but it is pushing the capacity of the discharge parameter. Referring to Exhibit A-1, and the above monthly influent flows, the plant was at 84% of its hydraulic design capacity of 30,000 gallons per day for March 1998. Its organic loading was at 98% of 62 lbs. per day. The flows for the 1998-1999 season were down, with a value of 56% of the hydraulic design capacity for the month of March, 1999, and 68% of the organic capacity. For the 1999-2000 season flows have increased. A value of 72% of the hydraulic design capacity was observed for March 2000. The organic levels peaked at 72% of the organic capacity. This illustrates that the flow levels are highly variable. The states "action level" regulations require that at 80% of design capacity, either hydraulic or organic, the plant owners must be in the planning stages for a new or upgraded plant. At 95% of design capacity, the owners should be under construction of a new facility. Both of these "action levels" were attained in the 1997-1998 season, although the next two seasons did not trigger these "action levels" A discharge permit renewal was submitted to CDPHE on April 3, 1998. On November 10, 2000, a draft permit renewal was released by CDPHE for public review and comment. Thirty (30) days from the release date are allowed to submit comments. Schmueser Gordon Meyer, Inc. contacted the permit drafter, Karen Young, on December 7'h by telephone. A request for an extension to the thirty (30) day comment period was requested. Karen agreed that an extension would be granted if the request was faxed to her. SGM faxed this request to her on December 8ih, 2000. The draft permit has equivalent parameters proposed for the outfall to Four Mile Creek. However, for the land application discharge to the settling pond (Discharge Point 002A) has a reduced Total Coliform count to 23/240a #/100 ml from the previous permits levels of 6,000/12,000a #/100m1 (' is 30 day geometric mean / 7 -day geometric mean ) It should also be noted that in the previous permit, the parameter required was Fecal coliform, and the draft permit calls for Total coliform. The draft permit also requires that monitoring of the all groundwater wells (Discharge points 050B, C, E and 051A, B) frequency be increased sixfold from semiannually to monthly. In addition to the monitoring of groundwater depth, Total Coliform Bacteria, Total Nitrate, Total Dissolved Solids, and pH; the draft permit also requires the monitoring of Temperature and Conductivity. Page 7 of 13 Under section IV.D.2. of the draft permit, a compliance schedule is enclosed. The permittee is required to comply with the following schedule items, as listed on the draft permit: Code Event Due Date 50008 Investigate and submit information on the seepage from the pond in the lagoon system to determine if the pond exceeds the allowable exfiltration rate of 1 x 10-6 cm/sec. If the liner integrity is the basis for determining that the seepage meets the criteria, then the report must be prepared by a professional engineer registered in Colorado. 06/30/01 03099 If the lagoon is found to be seeping in excess of the maximum rate, the permittee can either line the pond of implement a ground water monitoring program and apply for a permit to discharge to ground water. 09/31/01 There are some discrepancies with these items. There is no clarification on which lagoon is referenced, although it is probably referring either to the second, third, or fourth ponds (Cell #2, #3, #4) (See Exhibit A-5) as the pond (Cell #1) installed in the 1988 improvements has a membrane liner installed. According to Zancanella & Associates and Sunlight Inc. staff, as of October 2000, there has been no measurable discharge from the second aeration pond (Cell #2) to the settling pond. This would indicate that this pond is discharging to groundwater. Assuming a surface area of 5,600 ft2 for this pond, the allowable exfiltration rate comes out to be approximately 118 gallons per day. Using the September 2000 average flow rate of 12.200 gallons per day, and that none of this flow is seen leaving this pond indicates that this pond is leaking on the order of one hundred (100) times the allowable rate. In addition to the above compliance items, the draft permit is also asking for two upgradient ground water monitoring wells be installed. V. Proposed Alternatives Alternatives exist for the upgrading/replacing of the WWTF to bring it into regulatory compliance. The following tables describe some alternatives, with a brief description and advantages/disadvantages: Process Repair existing pond (Cell #2) in existing WWTF Description Route flow out of pond, drain the existing pond, dispose of sludge, rebuild/regrade pond due to embankment failure, line pond with membrane liner, Bring repaired pond back on line. Advantages • Uses existing system Disadvantages • Costly repair for realized benefits. • Not easily expandable • Involves keeping an operational plant on-line, and functioning under same discharge standards, while removing a critical process during construction. Page 8 of 13 • Sludge disposal would have to be disposed of either on-site, or hauled to an acceptable sludge disposal facility. • Pond could take a long time (months) to dry out to a workable state. • Very difficult to operate a facility and meet CDPS permit standards with this process off-line • Plant would still not be able to discharge to Four Mile Creek and meet the ammonia requirements Process Construct new Oxidation Ditch Activated Sludge Plant Description Mechanical plant with Long, slender tank basins arranged in a "racetrack." or ring shaped orientation, with circular clarifiers and rectangular disinfection basin. Campus design (each process has its own footprint) Advantages • Good Nutrient (Ammonia) Removal • Moderate efficiency • Easily expandable • Many manufacturers for equipment selection Disadvantages • Large footprint • Medium Installation Labor • Many moving parts • Higher 0 & M Expense • More complex to operate • Can have odors • More design time required • Complex Concrete Work Process Construct new Extended Aeration Activated Sludge Plant Description Mechanical plant with Rectangular aerated tank basins, with circular clarifiers and rectangular disinfection basin. Campus design (each process has its own footprint) Advantages • Low odor problems • Moderate efficiency • Many manufacturers for equipment selection • Easily expandable Disadvantages • Little Nutrient (Ammonia) Removal • Large Footprint • More design time required • High Installation Labor • Many moving parts • More complex to operate • Complex Concrete Work Page 9 of 13 Process Construct new Sequencing Batch Reactor (SBR) Plant Construct new AeroModT`t Activated Sludge Plant Description Advantages Mechanical plant utilizing the AeroModTM proprietary process, and rectangular disinfection basin. Advantages • Higher 0 & M expense • Many moving parts • More complex to operate • Small Footprint • Common wall construction (ie adjacent tanks share same concrete wall) • Stainless Steel • Few moving parts • Low installation Labor • Low odor complaints • Energy efficient • Lower 0 & M expense • Less design time • Easy to Operate Process • Good Nutrient (Ammonia) Removal Disadvantages Process Construct new Sequencing Batch Reactor (SBR) Plant Description Mechanical plant with influent and effluent pump stations. Flows are "batched" in (ie, tanks are filled, treated, then pumped out. This process is then repeated for the next "batch") Advantages • Small Footprint • Common wall construction (ie adjacent tanks share same concrete wall) • Good Nutrient (Ammonia) Removal • Many manufacturers for equipment selection Disadvantages • Higher 0 & M expense • Many moving parts • More complex to operate For any of the new plant alternatives, the plant should have a suitable cover. The high operational altitude and winter conditions of the site. The cover could consist of a fiberglass enclosure, or any other suitable structure, so long as it is designed to account for the harsh environmental conditions present such as increased humidity and corrosion present in open wastewater tanks. The land application snowmaking/irrigation system for the effluent allows for discharge that is easier to meet the discharge requirements. A land application option should be utilized if at all possible. VI. Potential Plant Sites SGM and Sunlight Personnel identified three potential for a plant expansion. Exhibit A-8 (WWTF Siting Options) is a map showing the three sites, referred to as "A", "B", and "C". The following table lists the advantages/disadvantages of each of the sites: Page 10 of 13 Site Description/Location Advantages Disadvantages A North of lower parking lot, directly east of • Easy Access, adjacent to parking lot • Construction near a steep slope to Four -Mile Creek existing pretreatment building. • Close to existing sewerline infrastructure • Soil appears to have high moisture content, due to drainage from lower parking lot • Temporary routing of sewerline may be necessary during plant construction • Lower Parking lot could not be widened. B South of Cell #3, directly west of utility pole for plant service. • • Could use one of the existing ponds as settling pond Easy access by existing trail and new road to south of existing ponds • • Site has known issues with movement, instability, and groundwater. Site is located on better potential real estate C North side of Four- • Most remote site from • Requires long access road. Mile Creek existing and future inhabitable structures. • Requires sewerline creek crossing • Site is located on land that has the least potential value for future real estate. • Soil conditions appear to be drier, with less moisture VII. Phasing Another advantage of a new mechanical plant is that it can be constructed in such a way to allow for future phases, should additional taps and other parties become interested in obtaining sewer service. The facility can be designed to put in an initial phase, with a future phase or phases. Construction costs of the future phases would be covered by those who are incurring the cost, such that the initial phase would be funded by the current system users. Included in the appendix are proposals for an AeroModn4 plant (Exhibit A-6) and a Sequencing Batch Reactor ("SBR") Plant (Exhibit A-7). The AeroModTM' plant was sized for 50,000 Gallons per day, and the SBR plant was sized for two phases, each phase at 100,000 Gallons per day capacity. Also included are cost opinions for an Aeromod plants for 50,000 and 75,000 Gallons per day. Page 11 of 13 VIII. Conclusion The condition of the existing WWTF, and its ability to discharge within regulatory limits is being challenged. There exist some serious issues with the existing plant, both from a mechanical and an operational and maintenance perspective. As the regulatory bodies are constantly increasing the stringency of the allowable permitted discharge levels, a viable long term solution is needed. The ideal solution will posses mature. stable technologies shown to produce consistent results and offer a great deal of flexibility and adaptation in coping with future increased regulatory requirements. In keeping with the future outlook, a formation of a Water and Sanitation District should be considered. A W&S District is a public entity that can shift the burden of operational, maintenance, and facility management of water and wastewater utilities to an organization that is better suited for the task. A District is recognized as a public governmental entity, and has the ability of taxation to better facilitate its needs. The formation of a W&S District involves preparing a Service Plan and submitting it to Garfield County, where it is voted on by the County Commissioners. A W&S District can also place a low-interest General Obligation (G.O.) Bond on the public election for future projects or other capital expenditures and improvements. In summary, a W&S District can better handle the task of running and maintaining a utility, while the individual businesses can focus on their own businesses. Page 12 of 13 Appendix - Attachments Exhibit Item # Pages A-1 Sunlight WWTF - Influent Flows 1 A-2 Sunlight - Water Meter Monthly Flows 1 A-3 Sunlight WWTF - Infiltration 1 A-4 Sunlight WWTF BOD Concentration @ Discharge Point 002A 1 A-5 Facility Schematic - Sunlight WWTF 1 A-6 AeroModTM Plant Proposal 8 A-7 Sequencing Batch Reactor Proposal 9 A-8 WWTF Siting Options 1 A-9 Cost Opinion 50,000gpd Aeromod Facility 1 A-10 Cost Opinion 75.000gpd Aeromod Facility 1 Page 13 of 13 Sunlight WWTF - Influent Flows 80% Threshold 100Z-avW-IC IOOZ-NVf 1E 000Z-AON-O£ t 000Z-d3S-OE 000z-Intt E 000Z -AV W-1 E 000Z-21VW-IE 000Z-NVf-1 E 6661-AON-OE 6661-d3S-OE 666I -1111-1E 6661-AVW-IE 6661-2IVW-IE 6661-NVf-IE 8661-AON-O£ 8661-d3S-OE 8661 -10f -IE 8661-AVW-IE 8661-21 V W-1 E 8661-N1ff-1 E L661-AON-OE L661-d3S-O£ L661 -10f-1 E L661-AVW-IE L661 -21V W -I£ L661-NVf-IE 966 I-AON-O£ 9661%13S -OE 9661 -101 -II 9661-AVW-IE 9661-21VW-IE 9661 -NW -IC ;661-AON-O£ 5661-d3S-O£ 5661-1nf-I£ 566 LE 566I-21tlW-IE 8661-Ntlf-IE 17661-AON-OE P661-d3S-O£ t661-1nh!£ t661-AVW-I£ t661-2IVW-I£ t661-NVf`fE tn J Vl • 7rn N O O O • O O O Om 0 O• ON O O o O O O O O O laawl mold kfl O 0 0 O O O Sunlight - Water Meter Monthly Flows 0 0 0 N 191uowisnapISI sllslq lapis 0 ca o 0 0 tri O N O 0 I =i ▪ e0c c N L t T' - u OD OD ` C C O m N 7 r cif..... • • • 1 • 4- • • • is O 0 O 0 O O O O O ten O V1 m rt N o O o O O O O O ON O N Ii of smold &lyluoyj anyelnwna O Sunlight WWTF - infiltration oo 0 0 0 o 0 0 0 0 0 0 o o N 0 GO .G 7 N (amen' aa1aW aamm - luanuul mu) IadMl uonelquuf a8eaany 0 v 0 0 0 0 N O 0 6661 lagwaoau 666! lagwanoH 66611ag0130 6661 lagwaldaS 6661 1sn8ny 6661 XInf 6661 aunt- 6661 unt6661 [CM 6661 I!ldy 6661 galeal 6661.Uenigad 6661Alenuet 8661 lagwaaaq 8661 lagwanoH 8661 134o130 8661 lagwaldaS 86617sn8ny 8661 AIM' 8661 aunt- 8661 unt8661 .ieW 8661 ludy 8661 11318W 8661 .4ecugad 8661 ,Slenuef o to o o M N N tijSwj uoge.fuaauo0 SQOg lOOZ-11/41W-LE 000Z-130-1£ OOOZ-Ilf- 1E 000Z-ildV-OE 000Z-NV1 IE 6661 -100 -IE 6661 -111f -1E E 6661-8dV-OE 6661-NVf-I£ 8661 -130 -IE 866I -11f -1E 8661`adV-OE 8661 -NW -If L661 -130 -IE L661-1f1f-IE L661-EdV-OE L661-NVf-IE 966I -130-1E 9661-lflf-1E 9661 -UV -OE 9661-4Vf-IE 5661-100-1E 566 L -111f -I E 5661ldV-OE 5661-NVf-1€ 17661-100-1E 1766 I-lff-1E b661-8dV-OE 17661 -NW -IC 6 Permit, Part I Page lm of 20 Permit No. CO -0038598 LZYi 2 V Perr__=, Part I Page IL of 20 Permit No. C0-0038598 IAI it //1 • /\ V r0 �/ (• 1/ // /1 1 r AERO -MOD ACTIVATED SLUDGE DESIGN CALCULATIONS Project: Ski Sunlight Ski Area WWTP - Colorado Engineer: Zancanella & Associates Act. Sludge Process: Extended Aeration INFLUENT CONDITIONS Flow, MGD BOD5, mg/I 6005, Ibs/day TSS, mg/I TSS, lbs/day Ammonia -N, mg/I Ammonia -N, lbs/day BOD Rate, K BODL, mg/I SS, Inorganic, mg/I PROJECTED EFFLUENT Date: 25 -Jul -96 Units: English DESIGN PARAMETERS 0.050 Aeration Basin Ret. Time, hours .240 10 Aeration Tank Volume, Mgal 100 4 Sludge Age, days 240 15 Mixed Liquor Temp., Degrees C 100 6 Oxygen Transfer Rate, % 25 1 Aeration Pressure, Inches of water 10 0.4 psi std Aerobic Digester Digester Vol., % of Aeration Tank 0.10 Digester - Maximum MLSS, mg/I 351 Digester - Maximum MLSS, % 48 PROJECTED OPERATING CONDITIONS - AERATION BASIN Mixed Liquor Suspended Solids, mg/I Mixed Liquor Volatile Suspended Solids, F/M Ratio. lbs B005/lb MLVSS FIM Ratio, lbs BODEIIb MLSS Organic Loading, lbs 6005/1000 cf of tank/day Oxygen Requirements (Carbonaceous), mg/I/hr Oxygen Requirements (Nitrogenous), mg/I/hr Aeration Required (Carbonaceous), scfm Aeration Required (Nitrogenous), scfm Aeration Required (Total), scfm Air Provided in Aeration Tank, of/Ib of BOD5/day MLSS Wasted Per Day, lbs/day MLSS Wasted Per Day, gallons/day PROJECTED RESULTS --AEROBIC DIGESTER Sludge Storage Capacity, days (w/o VS Destruction) Volatile Solids Reduction in Digester, % Solids Wasted from Digester, lbs/day Volume Wasted from Digester, gallons/day Digester Sludge Age, days (wl VS Destruction) Air Required for Stabilization, cfm Air Required For Mixing (©30 scfm/1000 cf), scfm 3,662 67.4 0.08 0.06 12.8 6.21 3.94 81 43 124 1,777 71 2,331 20 47.4 54 433 27 15 47 28.0 0.058 23.0 10 4.00% 144 5.20 20.0 15,000 1.50% AERO -MOD AERATION DESIGN CALCULATIONS Project: Ski Sunlight Ski Area WWTP • Colorado Date: 25 -Jul -96 Engineer: Zancanella & Associates Units: English Diffuser Type Used: Stainless Steel Coarse Bubble AERATION BASIN Flow, MGD 0.050 TSS, mg/I 240 BOD5, mg/I 240 TSS, lbs/day 100 BODS, lbs/day 100 SS, Inorganic, mg/I 48 BOD Rate, K 0.10 Ammonia -N, mgil 25 BODL, mg/I 351 Ammonia -N, lbs/day 10 Oxygen Required for BOO Reduction (MGD • mg/I' 8.34.1.2], lbs 02/day Oxygen Required for BOD Reduction, lbs 02/hr Oxygen Req'd for NH3-N Reduction (MGD • mg/I ' 4,6.8.34], lbs 02/day Oxygen Required for Ammonia Reduction, lbs 02/hr Actual Oxygen Requirement (AOR), lbs 021hr 120 5.0 48 2.0 7.0 Where: AOR Actual Oxygen Requirement 7.0 C'20 Steady State Value of 0.0. Saturation 9.2 Alpha Assumed for Domestic Wastewater 0.70 Theta Oxygen Transfer Coefficient 1.024 T Temperature of Water, Degrees C 20 Tau Oxygen Saturation Value [C'stIC's20] 1 Beta Assumed for Domestic Wastewater 0.95 Omega Omega (Pb/Ps] 1.000 C Dissolved Oxygen Concentration 2.0 Standard Oxygen Transfer Rate (SOTR), lbs 02/hr (AOR' C•20 / Alpha * Theta^(T-20)' (Tau' Omega • Beta ' C'20 - 0)1 13.7 Oxygen Density (Amount of Oxygen per ft3 of Air), lbs 02/1t3 0.017480 Transfer Efficiency for Selected Diffusers per Foot of Submergence, % 0.90% Diffuser Depth Below Water Surface 11,0 Aeration Requirement [SOTR / Oxygen Density' SOTE], ft3 air/hr 7,890 Projected Air Requirements, cfm 132 OTHER AIR REQUIREMENTS Aerobic Digester Tank, scfm 47 Selector Tank, scfm 10 Clarifier, scfm 12 Total Air Required, cfm 200 Air Supplied, cfm 200 Est. Operating HP Required for Aeration Basin, Clarifier & Selector tank Est. Operating HP Req. for Digester Est. Total Operating Horsepower 7.4 2.2 9.6 AERO -MOD CLARIFIER DESIGN CALCULATIONS Project: Ski Sunlight Ski Area WWTP - Coloraao Engineer: Zancanella & Associates Clarifer Type Used: Split-ClarAtor FLOW CONDITIONS Design Flow, MGD Peaking Factor, hourly Duration, min Peaking Factor, sustained Aeration Tank Volume, Mgal MLSS, mg/I Avg. RAS Recycle Rate, EQUIPMENT SIZING & SELECTION Number of Clarifiers Clarifier Unit Model Clarifier Unit Length, ft Clarifier Unit Width, ft Number of Units per Clarifier SURFACE OVERFLOW RATE 1 16128 16 8 1 Design Flow, gpd/sf Maximum Allowed Through Clarifier WEIR OVERFLOW RATE Design Flow, gpd/lin. ft Maximum Flow, gpd/lin. ft SOLIDS LOADING RATE Design Flow, lbs/day/sf Maximum Flow, lbs/day/sf RETENTION TIME Design Flow, hr Maximum Flow, hr PEAK FLOW HANDLING Peak Hourly Flow, MGD Max. Flow Through Clarifier, MGD Peak Flow, gat Max. Flow Through Clarifer, gal 0.200 0.102 8,333 4,267 Date: 25 -Jul -96 Units: English 0.050 4.0 60 2.5 0.058 3,862 100% Surface Area per Clarifier, sf Total Surface Area, sf Total Weir Length, ft Tank Wall Depth, ft Tank Water Depth, ft 391 800 1,724 3,531 23.9 38.4 5.7 2.8 128 128 29 14.0 12.5 Standards 1,000 10,000 50 In -Basin Storage, gal 2,493 Surge Tank Volume Required, gal 1,573 AERO -MOD TANKAGE DESIGN CALCULATIONS Project: Ski Sunlight Ski Area WWTP - Colorado Engineer: Zancanella & Associates Tank Construction: Cast -in -Place Concrete SELECTOR TANK Number of Tanks Tank Wall Height, ft Tank Water Depth, ft Freeboard, ft 1 Tank Width, ft 14.0 Tank Length, ft 12.5 Total Volume, gallons 1.5 'Retention Time, hr AERATION TANK Volume Required, gal 58,333 Tank Wall Height, ft Tank Water Depth, ft Stage 1 Number of Tanks Tank Length, ft Tank Width, ft Area of Each Tank. sf Volume, gallons CLARIFIER TANK Number of Tanks Tank Wall Height, ft Tank Water Depth, ft AEROBIC DIGESTER TANK Number of Tanks Tank Wall Height, ft Tank Water Depth, ft SIDE LINE SURGE TANK Number of Tanks Tank Wall Height, ft Tank Water Depth, ft OVERALL TANKAGE DIMENSIONS Total Length, ft Total Width, ft Total Area, sf Total Wall Length, lin. ft "Note: Includes RAS 14.0 12.5 1 51.00 8.0 408 38,148 Number of Trains Number of Stages Stage 2 Number of Tanks Tank Length, ft Tank Width, ft Area of Each Tank, sf Volume, gallons Total volume provided, gal 1 Tank Width, ft 14.0 Tank Length, ft 12.5 Total Volume, gallons Volume Required, gal 11,667 Date: 25 -Jul -96 Units: English 1 Tank Width, ft 14.0 Tank Length, ft 12.5 Total Volume provided, gal Volume Required, gat 1,573 1 Tank Width, ft 14.0 Tank Length, ft 12.5 Total Volume provided, gal 64.00 19.00 1,216 256 Wall Thickness, in Floor Thickness, in Total Concrete, cy 1 28.00 8.0 224 20,944 59,092 5.0 8.0 3,740 0.9 1 2 8.0 16.0 11,968 12.00 10.00 11,220 4.00 10.00 3,740 12.0 12.0 225 AERO -MOD EQUIPMENT AND SERVICES COST ESTIMATE Project: Ski Sunlignt Ski Area WWTP - Colorado Engineer: Zancanella & Associates EQUIPMENT SUPPLIED Date; 25 -Jul -96 Units: English 1 Aero -Mod Split-ClarAtor Clarifier - 128 sf each 2 Aeration blowers, 10 HP positive displacement - 200 cfm each (Includes controls) 1 Split-ClarAtor control panel, Model SCC -100 10 Wall mounted aeration assembly, Model WA-50-PC-2SS - 12" Diffusers 1 Selector tank mixing assembly, Model WA-50-C-2SS 1 Solids Westing Air Lift Pumps, Model AL -100 2 Digester tank aeration assembly, Model WA-50-PCA-2SS 1 Surge return pump & controls 70 LF Of Aluminum framed walkways & handrail 1 Wall mounted Influent Bar Screen LS Installation materials, brackets, inserts, freight, misc. "TOTAL EQUIPMENT COST ESTIMATED INSTALLATION ESTIMATED CONCRETE TANK COST Concrete Volume, cy Installed Concrete Cost, $Icy *TOTAL ESTIMATED COST 225 5400 'Buildings, site work, and auxiliary equipment are not included within this estimate. $110,000 514,000 590,000 $214,000 NOTE THE FOLLOWING: 1. No RAS pump station and associated electrical requirements are needed. 2. Yard piping is not required between the tankage. 3. All associated walkways & handrail for the plant are included in the above estimate. 4. Start-up of Aero -Mod Equipment is included in the equipment price. 6. The proposed plant includes the following tankage: One (1) Selector Tank Two (2) Aeration Tanks One (1) Aero -Mod Split-ClarAtor Clarifier One (1) Aerobic Digester One (1) Side Line Surge Tank REST -TECH SLUDGE DEWATERING & CONTAINMENT DESIGN CALCULATIONS Project: Ski Sunlight Ski Area WWTP - Coloraco Date: 25 -Jul -96 Engineer: Zancanella & Associates Units: English Draimad Model Used: 6BCAP SLUDGE CONDITIONS Volume of sludge per day (fully loaded), gallons 433 Solids concentration of sludge, mg/ 15,000 Solids concentration of sludge, % 1.50% Solids to dewater, dry lbs/day 54 Polymer requirement, lbs/1000 lbs dry sludge Polymer cost per pound Contained solids concentration @ 1 day, % Weight of dry solids per polyfilter, lbs Contained solids concentration @ 120 days, % Weight of polyfilter, moisture, and solids @ 120 days, lbs Volume of Sludge per polyfilter @ 120 days, ft3 EQUIPMENT SIZING & SELECTION 5.0 $4.55 10.50% 20.3 40.00% 50.7 0.79 Number of Polyfilters per Unit 6 Number of Units Used 1 Total Number of Polyfilter Capacity 6 Capacity of selected system, lbs dry solids/cycle 122 Cycles per Operational Day 1 Operational Days required/month 13 DEWATERING COSTS Polymer requirement, lbs/month 8 Polymer cost per month, s $37 Polyfilters required per month, units 80 Polyfilter cost per month, $ $176 Electrical cost per month © $0.10/KWHr, $ $2 Net sludge dewatering costs per month, $ $215 Equivalent cost per dry ton of solids Equivalent cost per gallon of solids for dewatering Monthly Total Weight of bags to be disposed (@ 40%), lbs Landfill cost @ $50/ton Equivalent cost per gallon of solids for disposal Total Equivalent cost per gallon of solids BUDGET PRICE FOR EQUIPMENT INCLUDING START-UP • Polyfilters are sold in lots of 100 @ 5220/lot. " Polymer is sold in 55 Ib containers @ $250/container. $0.017 $0.008 $0.024 $265 4,062 $102 $28,000 r Sunlight Mountain Resort Wastewater Treatment Facility March 28, 2001 Opinion of Probable Cost 50,000gpd WWTF New WWTF No. Item/Description Qty. Unit Price/Unit Total Price 1 Aeromod Plant (including tankage concrete) 1 LS $250,000.00 $250,000.00 2 Building 2,400 SF $110.00 $264,000.00 3 Foundation/Retaining Wall 80 LF $150.00 $12,000.00 4 Recording Chart 1 LS $1,000.00 $1,000.00 5 Grating 140 SF $15.00 $2,100.00 6 Excavation 6,000 CY $7.00 $42,000.00 7 Hand Rails 140 LF $25.00 $3,500.00 8 Flow Equalization 1 LS $15,000.00 $15,000.00 9 Chlorine Contact Chamber 20 CY $450.00 $9,000.00 10 Chlorine Equipment 1 LS $5,000.00 $5,000.00 11 Chlorine Contact Gates/Weirs 1 LS $2,000.00 $2,000.00 12 Plant Piping 120 LF $30.00 $3,600.00 13 Misc. Valves/Fittings 1 LS $2,500.00 $2,500.00 14 Parshall Flume 1 LS $1,500.00 $1,500.00 15 Bar Screen 1 LS $2,500.00 $2,500.00 16 Polishing Pond Vault 1 LS $8,000.00 $8,000.00 New WWTF - Total $623,700.00 Site Improvements No. Item/Description Qty. Unit Price/Unit Total Price 1 Sewerline Extension 900 LF $30.00 $27,000.00 2 Manholes 5 Ea. $2,500.00 $12,500.00 3 Access Road to Plant 400 LF $50.00 $20,000.00 4 Outfall Line to Creek 250 LF $30.00 $7,500.00 Site Improvements - Total $67,000.00 Contingency (for Mobilization, Overhead, General Conditions, Administration, etc.) Subtotal $690,700.00 15% 593,555.00 Total Cost $784,255.00 Total Cost per Gallon 50,000 $15.69 Notes: 1. The estimates contained herein are the opinion of this engineer and are based upon historical information adjusted for unique conditions of this project. Actual costs may vary due to market conditions. 3/28/2001 4:55 PM cost_estimate.xls Page 1 of 2 Prepared by Greg Schroeder, PE Sunlight Mountain Resort Wastewater Treatment Facility March 28, 2001 Opinion of Probable Cost 2. Costs shown above do not include fees such as (but not limited to) easments, property acquisition, service agreements, permitting, etc. 3. Offsite costs including (but not limited to) road improvement(s), shallow utility (electric, telephone, gas), and landscaping are not included in this cost opinion. 4. This cost opinion should be considered preliminary, and is based upon the amount of information supplied at its preparation time. 5. Building costs here are estimated at SI 10/SF. This unit const could vary significantly depending on type of building structure proposed, humidity and environmental factors, and other design elements such as (but not limited to) material choices, HVAC considerations, odor control/mitigation, and architectural enhancements. 6. Site Improvements are referring to Site Option "B", per the "W WTF Siting Options" handout. Other options will have different costs and items due to site specific conditions. 3/28/2001 4:55 PM cost_estimate.xls Page 2 of 2 Prepared by Greg Schroeder, PE Sunlight Mountain Resort Wastewater Treatment Facility March 23, 2001 Opinion of Probable Cost 75,000gpd WWTF New WWTF No. Item/Description Qty. Unit Price/Unit Total Price 1 Aeromod Plant (including tankage concrete) 1 LS $325,000.00 $325,000.00 2 Building 3,200 SF $110.00 $352,000.00 3 Foundation/Retaining Wall 100 LF $150.00 $15,000.00 4 Recording Chart 1 LS $1,000.00 $1,000.00 5 Grating 155 SF $15.00 $2,325.00 6 Excavation 7,353 CY $7.00 $51,471.00 7 Hand Rails 180 LF $25.00 $4,500.00 8 Flow Equalization 1 LS $20,000.00 $20,000.00 9 Chlorine Contact Chamber 25 CY $450.00 $11,250.00 10 Chlorine Equipment 1 LS $5,000.00 $5,000.00 11 Chlorine Contact Gates/Weirs 1 LS $2,000.00 $2,000.00 12 Plant Piping 150 LF $30.00 $4,500.00 13 Misc. Valves/Fittings 1 LS $3,000.00 $3,000.00 14 Parshall Flume 1 LS $1,500.00 $1,500.00 15 Bar Screen 1 LS $2,500.00 $2,500.00 16 Polishing Pond Vault 1 LS $10,000.00 $10,000.00 New WWTF - Total $811,046.00 Site Improvements No. Item/Description Qty. Unit Price/Unit Total Price 1 Sewerline Extension 900 LF $30.00 $27,000.00 2 Manholes 5 Ea. $2,500.00 $12,500.00 3 Access Road to Plant 400 LF $50.00 $20,000.00 4 Outfall Line to Creek 250 LF $30.00 $7,500.00 Site Improvements - Total $67,000.00 Contingency (for Mobilization, Overhead, General Conditions, Administration, etc.) Subtotal $878,046.00 15% $121,656.90 Total Cost $999,702.90 Total Cost per Gallon 75,000 $13.33 Notes: 1. The estimates contained herein are the opinion of this engineer and are based upon historical information adjusted for unique conditions of this project. Actual costs may vary due to market conditions. 3/23/2001 4:14 PM cost_estimate.xls Page 1 of 4 Prepared by Greg Schroeder, PE Sunlight Mountain Resort Wastewater Treatment Facility March 23, 2001 Opinion of Probable Cost 2. Costs shown above do not include fees such as (but not limited to) easments, property acquisition, service agreements. permitting, etc. 3. Offsite costs including (but not limited to) road improvement(s), shallow utility (electric, telephone, gas), and landscaping are not included in this cost opinion. 4. This cost opinion should be considered preliminary, and is based upon the amount of information supplied at its preparation time. 3/23/2001 4:14 PM cost_estimate.xls Page 2 of 4 Prepared by Greg Schroeder, PE Exhibit "D" Siting Options Name Pages Siting Map 1 1 ji Exhibit "E" Request for Preliminary Effluent Limitations ("PEL") From CDPHE Name Pages Letter to Karen Young, March 30, 2001 1 Letter to Karen Young, October 30, 2001 1 SCHMUESER GORDON MEYER \_ Edi G.'.E E=5 c SJRV E"CR5 March 30. 2001 Ms. Susan Nachtrieb CDPHE Water Quality Division 4300 Cherry Creek South Denver. CO 80222 -__h'WOCC :. °'NG3 -3PEN 118 W. 6TH, SUITE 200 P.O. BOX 2155 GLENW000 SPRINGS. CO 81 601 ASPEN. CO 81 61 2 970-945- 1004 970-925-6727 FX: 970-945-5948 FX: 970-925-4 1 57 Re: PEL's for Sunlight Mountain Resort WWTF Dear Susan. The purpose of this letter is to request preliminary effluent limits (PEL's) for an expanded waste water treatment facility being considered by Sunlight Mountain Resort. By way of history Sunlight owns and maintains a 30,000 gpd waste water treatment facility. The plant currently uses the facultative lagoon technology followed by land application. Sunlight holds a surface water discharge permit to Four Mile Creek. Effluent from the final polishing pond is used to make snow in the wintertime or land applied during the irrigation season. Sunlight would like to consider expanding the treatment facility to either a 50.000 or 75.000 gpd facility. Through this letter we would request PEL's for facilities of the above mentioned sizes. If we could provide you any additional information please don't hesitate to contact me. Sincereh ouis Meyer. P.E. cc: Tom Zancanella Larry Green Sunlight Board Greg Schroeder LOM/dlc/93100 F 05 SSCHMUESER GORDON MEYER ENGINEERS & SURVEYORS GLENWOOD SPRINGS ASPEN CRESTED BUTTE 118 W. 6TH. SUITE 200 P.O. BOX 2155 P.O. BOX 3088 GLENWOOD SPRINGS. CO 81601 ASPEN. CO 8 161 2 CRESTED BUTTE. CO 81 224 970-945-1004 970-925-6727 970-349-5355 FX: 970-945-5948 FX: 970-925-4157 EX: 970-349-5358 October 30, 2001 Karen Young CDPHE Colorado Department of Public Health and Environment 4300 Cherry Creek Drive South Denver, CO 80222-1530 RE: Sunlight Mountain Resort — Preliminary Effluent Limitations Dear Karen, Thank you for your phone conversation with me today, regarding the status of the requested Preliminary Effluent Limitations for the Sunlight Mountain Resort Proposed WWTF. Per our conversation, you mentioned that CDPHE contracts out the PEL calculations to a private firm, and that our requests for PEL's have been sent to the subcontractor. You also mentioned that you anticipated the PEL's within a few weeks to a month. Sunlight Mountain Resort is currently in the process of submitting a site application for a proposed new WWTF, and as required on the site application form, item #4 are these parameters. In the interim, we will submit the site application with this letter, and the previous request dated March 30th, 2001 as evidence that Sunlight Mountain Resort has requested for PEL's and eagerly awaits their arrival. I will follow up with you in a few weeks to check on the status. In the meantime, if you have any questions or concerns, please contact me at (970)945-1004, or by email at gregs@sgm-inc.com at your earliest convenience. Thank you for your time and consideration. Best Regards, Schmueser ordon Meyer, Inc. Greg Schroeder, P.E. Exhibit "F" CDPS Permit Number CO -0038598 Garfield County Name Pages Draft Permit # C00038598 32 STATE OF COLORADO Bill Owens, Governor Jane E. Norton, Executive Director Dedicated to protecting and improving the health and environment of the peopjsp(C)�5 �lorado 4300 Chenv Creek Dr. S. Laboratory and Radiation Services Division i -)7 r7 © - j� Denver, Colorado 80246-1530 8100 Lowry Blvd. ' 1 ( .: l kw Phone (3031692-2000 Denver CO 80230-6928 Li t TDD Line (3031691-7700 (303) 692-3090 u Located in Glendale, Colorado NO V 2 0 2000 http://www.cdphestatem.us NOVEMBER 10, 2000 Colorado Department of Public Health and Environment COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT (CDPHE) WATER QUALITY CONTROL DIVISION (WQCD) Public Notice of Completed Applications and Tentative Determination to Issue Waste Discharge Permits Purpose of Public Notice: This notice states that complete applications for permits to discharge pollutants to waters have been made by the applicants named below. The CDPHE intends to issue, deny or inactivate Colorado Discharge Permit System permits for the facilities listed below, pursuant to the Clean Water Act, and the Colorado Water Quality Control Act. An asterisk by the permit name denotes a permit and rationale that serves as a total maximum daily load under Section 303 (d) of the Clean Water Act and will be submitted to the US EPA Region VIII for review. All permits are subject to the approval of the United States EPA. The permit drafters may be reached by phone at (303) 692-3500. 1. SUNLIGHT, INC., c/o Thomas Jankovsky, 10901 County Road 117, Glenwood Springs, CO 81601. PHONE: (970) 945-7491. PERMIT NO.: CO -0038598, GARFIELD COUNTY DRAFTER: Karen Young RENEWAL: for the discharge of treated domestic wastewater DISCHARGE: to Fourmile Creek I 1LtenAprixtp.nita\pnipualic notice 1 ISa0.wpxt 2. ASPEN CONSOLIDATED SANITATION DISTRICT, c/o Sy Kelly, Board Chairman, 565 North Mill Street, Aspen, CO 81611. PHONE: (970) 925-3601. PERMIT NO.: CO -0026387, PITKIN COUNTY DRAFTER: John Blair RENEWAL: fifth DISCHARGE: Roaring Fork River 3. EAGLE RIVER WATER & SANITATION DISTRICT-VAIL WASTEWATER TREATMENT FACILITY, c/o Dennis Gelvin, General Manager, 846 Forest Road, Vail, CO 81657. PHONE: (970) 476-7480. PERMIT NO.: CO -0021369, EAGLE COUNTY DRAFTER: John Blair RENEWAL: fifth DISCHARGE: Gore Creek 4. WELD COUNTY TRI AREA SANITATION DISTRICT, c/o Anthony Onorato, Jt., President, P.O. Box 213, Firestone, CO 80503. PHONE: (303)833-2977, PERMIT NO: CO -0021580, WELD COUNTY DRAFTER: Jo Anne Gerken RENEWAL: fifth DISCHARGE: St. Vrain Creek 5. LEADVILLE SANITATION DISTRICT, c/o John Guess, Board Chairman, 911 South Highway 24, Box 253, Leadville, CO 80461. PHONE: (719) 486-2993. PERMIT NO.: CO -0021164, LAKE COUNTY DRAFTER: Jon Kubic RENEWAL: for discharge of treated domestic wastewater DISCHARGE: California Gulch I 11sts\Apti,\peraita\pn\pub11c notice 1 list.up7 6. SILVERTHORNE/DILLON JOINT SEWER AUTHORITY, BLUE RIVER WASTEWATER TREATMENT FACILITY, c/o Lou Delpiccola, Mayor, P.O. Box 1309, Silverthome, CO 80498. PHONE: (970) 468-6152. PERMIT NO.:CO- 0020826, SUMMIT COUNTY DRAFTER: John Blair RENEWAL: fourth DISCHARGE: Blue River CIVIL PENALTY: Purpose of Public Notice: The purpose of this notice is to state the intent of the Water Quality Control Division to petition for the imposition of a negotiated civil penalty of $1,600 against the Town of Gypsum. This penalty is sought pursuant to the Water Quality Control Act, '25-8-608, C.R.S., for violation of the conditions of CDPS Permit No. COG -5840001 as alleged in the Notice of Violation and Cease and Desist Order issued by the Water Quality Control Division January 5, 2000. The Town of Gypsum is located in Eagle County, Colorado and is authorized to discharge Treated wastewater into Eagle River subject to specific effluent limitations and other conditions established by the above -referenced permit. Tentative Determination: State tentative determinations have been made in conjunction with the U.S. EPA that limitations and conditions imposed in these permits implement all applicable statutes and regulations and water quality standards. Public Meetings: Permit Action: Pursuant to 25-8-502(3)(b), by December 10, 2000, interested persons may submit a written request for a public meeting on the tentative determination. The Division, after considering all requests, may grant a public meeting for good cause shown. It will be held within sixty (60) days of the date of public notice. Public Comments: Permit Actions: Pursuant to 25-8-502(3)(c) interested persons may submit written comments on the tentative determination provided they are received by the Division by December 10, 2000 received prior to said date will be considered in the formulation of final conditions and limitations. If a public meeting is held, the public comment period shall close sixty (60) days following the public notice. Following the public comment period and the public meeting, if one is held, the Department will issue or deny the final permit. Interested parties then have thirty (30) days to request an adjudicatory hearing on the permit. I list.VApr1,\peefite\pn\pubiin node. 1 list.wpi Mailing Address: Public comments should be directed to the CDPHE, WQCD-P-B2, 4300 Cherry Creek Drive South, Denver, Colorado 80246. Further Information: Permit Actions: The draft permit is available for inspection at your County Commissioner's Office and County Health Department, or can be obtained by writing to the Division at the above address and paying a small charge per page for copying fees. Material Injury to Water Rights: In accordance with C.R.S. 25-8-104 (2) (d) (1989), any person who believes that any actions proposed in this notice have the potential to cause material injury to a water right is advised to contact the Division, in writing by December 10 2000. The written notification should explain how the material injury will be incurred. PUBLIC NOTICE NUMBER: CO -00-9 I liata\Apeit\pt.tta\pn\publie notice 1 list.wpd STATE OF COLORADO Bill Owens, Governor Jane E. Norton, Executive Director Dedicated to protecting and improving the health and environment of the people of Colorado 4300 Cherry Creek Dr. S. Denver, Colorado 80246-1530 Phone (303) 692.2000 TDD Line (303) 691-7700 Located in Glendale, Colorado http://www.cdphestate.co.us Laboratory and Radiation Services Division 8100 Lowry Blvd. Denver CO 80230-6928 (303) 692-3090 RATIONALE FOR PUBLIC NOTICE NOVEMBER 10, 2000 SUNLIGHT, INC. CDPS PERMIT NUMBER C0-0038598 GARFIELD COUNTY Colondo Department of Public Health and Environment Enclosed is a copy of the draft permit renewal for your facility, which has been sent to public notice. There are thirty (30) days from the time of public notice to submit comments to the Division for consideration. Because of the many changes that the permit may undergo before issuance, all changes and corrections will be made after the public notice period. If you have any questions, please do not hesitate to contact the Permits Unit at 692-3500. Thank you for your cooperation. Sincerely, Susan htrieb, Permits Unit Manager Water Quality Protection Section Water Quality Control Division xc: County Commissioners County Health Departments Enclosure CC 'RADO DISCHARGE PERMIT SYSTEM ' 'PS) SUMMARY OF RATIONALE SUNLIGHT, INC. CDPS PERMIT NUMBER CO -0038598, GARFIELD COUNTY TABLE OF CONTENTS I. TYPE OFPERHIT 1 IL FACILITY INFORMATION 1 III. RECEIVING STREAM 2 IV. FACILITIES EVALUATION 2 V. PERFORMANCE HISTORY 2 W. TERMS AND CONDITIONS OF PERMIT 2 VII. REFERENCES 8 L TYPE OF PERMIT Il. FACILITY INFORMATION A. Facility Type: B. Facility Classification: Third Renewal Minor Municipal, Lagoon System Class C per Section 1W.9.2 of the Regulations for Certification of Water Treatment Plant and Wastewater Treatment Plant Operators. C Fee Category: Category 20, Subcategory 1 Category Flow Range: 0 up to 49,999 gallons per day Annual Fee: $257 D. Legal Contact: Thomas C. Jankovsky, Secretary Sunlight, Inc. 10901 County Road 117 Glenwood Springs, CO 81601 (97))+945-7491 E. Facility Contact: Thomas Zancanella, Operator Zancanella & Associates, Inc. P.O. Bax 1908 Glenwood Springs, CO 81601 (970)+945-5700 F. Facility Location: In the NE % of the SW Y of Section 33, 77S, R89WW, B" P.M.; 12 miles south of Glenwood Springs, Colorado along County Road 117 that follows Fourmile Creek. G. Discharge Point: GOIA, following the storage pond and prior to entering Fournule Creek. 002A, following the chlorine contact chamber and prior to entering the storage pond. 05013, C, and E; downgradient ground water monitoring wells at the snow making/land application site. 051A and 051B; upgradient ground water monitoring well at the snow making/land application area. ISSUED EFFECTIVE EXPIRATION COLORADO DEPARTMENT OF PUB' 'C HEALTH AND ENVIRONMENT, Water Q "liry Control Division Rationale - Page 3, Permit No. CO -0L 98 VI. TERMS AND CONDTITONS OF PERMIT A. Determination of Effluent limitations 1. Effluent Limitations pTable 11-1— Effluent Limits for 001A to Founnile Creek - Continued MR OHS Fecal Coliform, no/100 ml Total Residual Chlorine, mg/1 pH, s. u. Oil and Grease, mgR Total Ammonia (as N), mgR January February March April May June July August September October November December Salinity 1,171/2,342 0.017f 6.5-9.0 ° 10` 26.7° 22.2 ° 20.4 ° 28.6 ° 367° 16.2' 2.9 2.6° 22° 3.9° 27.6° 30.2 ° Report Antidegradation Antidegradation Water Quality Standards Smte Effluent Regulations Antidegradation Salinity Regulations o 30 -day average ° 30day average/7-day average • Daily Maximum ° Minimum -Maximum • 30 -day geometric mean/7-day geometric mean Table VI -2 — Effluent Limits for 002A to snow making/land .xfa,N....�> ....:.,y<.............r. .. :r >::.....:. H �'. '+l. <:�::.:: z.,��' Flow, MGD BODS, mgR TSS, mgR Total Coliform, no/100 ml Total Residual Chlorine, mgR 0.03° 30/45 b 75/110' 23/240' Monitor Design Capacity State Effluent Regulations State Effluent Regulations Land Application Policy Disinfection Effectiveness o 30 -day average s 30day average/7-day average • 7 -day median/sum of any two consecutive samples 2. Discussion of Effluent Limitations a. BODJ. 7SS. and Oil and Grease - BOD5, TSS, and Oil and Grease limits are taken from State Effluent Regulations. No violations of the dissolved oxygen standard are expected due to this discharge. COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT, Water Quality Control Division Rationale - Page 5, Permit No. CO -C 598 V7. TERMS AND CONDITIONS OF PERMIT B. Monitoring 1. Influent and Effluent Monitoring — Continued Table VI -4 — Effluent Monitoring Requirements - Outfall OO1A ar Measarement Frequency Effluent Flow, MGD Effluent BODS, mg/1 Effluent Total Suspended Solids, mg/l Effluent Fecal Colifonn, no./100 ml Effluent Total Residual Chlorine, mg/l Effluent pH, s.u. Effluent Oil & Grease, mgR Effluent Total Ammonia as N, mg/l Effluent Total Dissolved Solids, 7DS, mg/l 3 X/Week Monthly Monthly Monthly Weekly Weekly Weekly Monthly Quarterly Instantaneous Grab Grab Grab Grab Grab Visual * Grab Grab * If a visible sheen is noted, a grab sample shall be collected and analyzed for oil and grease. The results are to be • reported on the DMR under parameter 03582. Table VI -5 Effluent Monitoring Requirements Outfall 002A to snow making/land application site MEasurement Frequen. +R h vsi" Effluent Flow, MGD Effluent BODS, mg/l Effluent Total Suspended Solids, mgR Effluent Total Coliform, no./I00 ml Effluent Total Residual Chlorine, mg/1 Continuous Monthly Monthly Monthly Monthly Meter Grab Grab Grab Grab Table VI4 — Ground Water Well Monitoring Requirements — Downgradient Monitoring Points 0508, C, and D upgradlent monitoring point OSIA and 0518 Monitoring of upgradient wells to begin 911101 Ew Lw"'s&d» n Mx sx ms. mamder .Y�2' : �E ` m 1 '�e _ sv. aatpi 3?i. 9': .... .,... ¢..?.<,..,., 7.F 5 r c,.fugsat'emleRi' ...... s,. Depth to ground water, ft. Total Coliform Bacteria, number/1Q2 Total Nitrate as N, mgR Total Dissolved Solids, mgR pH, standard units Conductivity Temperature, F' Monthly Monthly Monthly Monthly Monthly Monthly Monthly Measured Grab Grab Grab Grab Grab Grab COLORADO DEPARTMENT OF PUB7 TC HEALTH AND ENVIRONMENT, Water Qr-lity Control Division Rationale - Page 7, Permit No. CO-& 98 W. TERMS AND CONDITIONS OF PERMIT C. Reporting 1. Discharge Monitoring Report - The permittee must submit a Discharge Monitoring Report (DMR) monthly to the Division. This report will contain the test results for parameters shown in Tables VI -3, W-4, W -S, and VI - 6 and Pan I, Section B of the permit. The DMR form shall be completed and submitted in accordance with Pan I, Section D.2 of the permit. 2. Annual Biosolids Report - The permittee will be required to submit an annual Biosolids Report which inclinin the results of all biosolids monitoring performed for the year and information on management practices, land application sites, site restrictions and certifications. The Annual Biosolids Report is due by February 19th of the following year. Refer to Pan 1, Section D.3 of the permit. 3. Special Reports - Special reports are required in the event of a spill, bypass, or other noncompliance. Please , refer to Pan I, Section D.4 of the permit for reporting requirements. D. Additional Terms and Conditions 1. Signatory Requirements - Signatory requirements for reports and submittals are discussed in Pan I, Section D.1 of the permit. 2. Compliance Schedules a) Groundwater - In order to protect the ground water quality in the area of the lagoon system, the permittee mast comply with the following schedule: 50004 Investigate and submit information on the seepage from the pond in the lagoon system to determine if the pond exceeds the allowable ex filtration rate of 1 X 104 cm/sec. If the liner integrity is the basis for determining that the seepage meets the criteria, then the report must be prepared by a professional engineer registered in Colorado. 06/30/01 03099 If the lagoon is found to be seeping in excess of the maximum rate, the permittee can either line the pond or implement a ground water monitoring program and apply for a permit to discharge to ground water. 09/31/01 b) Un¢radient Ground Water Monitoring Wells - In order to determine if there is an impact to the ground water quality, two upgradient ground water monitoring wells installed, the permittee must comply with the following schedule: c) Ground Water Monitoring - A compliance schedule will be required for the development of a sampling protocol for the ground water monitoring wells. 2' ' s Y$7!'"O��sR � ..Su .a ,� �r �c amt . .Lz <«r>.�,R.a,R3t�.9' k..”' W ... a a rmlr'GYtaltait.; t ater ...n r.,>,;.:;a: 91008 The permittee must submit a diagram of the location and the proposed design of two upgradient ground water monitoring well. Pan LA.7. 04/01/01 91108 Submit confirmation that two upgradient ground water monitoring wells has been installed and begin sampling. Pan I.A.7. 08/31/01 c) Ground Water Monitoring - A compliance schedule will be required for the development of a sampling protocol for the ground water monitoring wells. Colorado Water Quality Control Division Water Quality Assessment Fourmile Creek Ski Sunlight WWTP, Colorado Assessment Unit Assessment Summary Ski Sunlight WWTP Name of Facility CO -0038598 CDPS number COUCRFO3 — Roaring Fork- Segment 03 WBID - Stream Segment Cold Water Aquatic Life Class 1 Recreation Class 1 Water Supply Agriculture This Stream Segment meets standards for all parameters assessed L Introduction The water quality assessment of Fourmile Creek was conducted by the Colorado Water Quality Control Division (WQCD) Assessment Unit to facilitate issuance of the Colorado Discharge Permit System (CDPS) permit for Ski Sunlight Wastewater Treatment Plant (WWTP), permit no. CO -0038598. Ski Sunlight is located on the edge of White River National Forest on Fourmile Creek. Foutmile Creek's headwaters are in White River National Forest near Bald Mountain (10,361'). Fourmile Creek flows into the Roaring Fork River at Glenwood Springs approximately 7 miles from the discharge point of Ski Sunlight's WWTP. The assessment of water quality and quantity includes information about Fourmile Creek gathered during 1994-1997. The data used in the assessment consists of the best available information. There are two point source contributors to this stream segment: Ski Sunlight WWTP, and Oak Meadows WWTP, which is located approximately 4 miles downstream of Ski Sunlight. The ammonia modeling pertains to the stretch of Fourmile Creek below the discharge point to the end of the segment, approximately ten miles. IL Water Quality Fourmile Creek is included in Segment 03 of the Roaring Fork River Basin and is classified as Aquatic Life Cold 1, Recreation 1, Water Supply and Agriculture. The full suite of numeric standards has been adopted for the segment. The standards for this segment are scheduled for review at the Triennial Review Hearing in February 2002. An assessment of ambient water quality and applicable water quality standards is presented below. October 26, 2000 1 AU/ AM Colorado Water Quality Control Division Assessment Unit Table 1 - Water quality data summary Parameter number of samples 15" percentile 50" percentile 85th percentile mean Stream standard Se (dis) ug/L 7 1 2 5 1.9 5 Zn (dia) ug/L, - - - - - 234.76 Hardness as CaCO3 mg/L 296 134.5 244.5 290 224.89 (Average) - NH3 mg/L - - - - .02 C12 mg/L - - - 0.011 (ch) fecal coli #/100 mL 35 1 16 107.4 7.59 log mean 200 IIL Water Quantity Permit limits are set for the critical condition instream. Standards must be protected at all times including low flow conditions. These conditions include the acute (one in three year interval or 1E3) and chronic (30 day average in three year interval or 30E3) low flows. Low Flow Analysis: The annual 1E3 and 30E3 low flows were calculated using United States Environmental Protection Agency (EPA) DFLOW software, Fourmile Creek daily flow data and a watershed area correlation. The river flow was data taken from the USGS Gages # 09084500 near Carbondale on the Roaring Fork River and #09084600 near Glenwood . The two flow records were combined to form a daily flow/watershed area record with a P.O.R. of 1942-1965. The watershed area above Ski Sunlight was multiplied times the flow/water shed area record to generate a flow record for Fourmile Creek just above Ski Sunlight. The watershed area above Ski Sunlight is 15.05 square miles. This watershed area above Ski Sunlight was calculated from a 1:50,000 scale Garfield and Pitkin county maps using a model 620000 K&E planimeter. October 26, 2000 3 AU/ AM Colorado Water Quality Control Division Assessment Unit Creek from the Ski Sunlight discharge point to the end of the segment. Oak Meadows Facility: Oak Meadows is located 4 miles downstream of Ski Sunlight. Ski Sunlight and Oak Meadows will have a combined effect on the water quality on Fourmile Creek. The design capacity of Oak Creek WWTP is 0.035 MGD (0.0525 CFS) and the discharge from this facility was used in calculating the assimilative capacity for fecal coliforms and ammonia. Assessment of Chlorine Assimilative Capacity: Mass balance calculations were used to determine the assimilative capacity for chlorine. The instream flow was determined from the annual low flow calculation and the effluent flow was determined as the design capacity of the WWTP. The background concentration for chlorine was determined to be zero due to the lack of upstream sources. The full assimilative capacity of the stream for chlorine was then calculated based on the above parameters and the water quality standards of 0.011 mg/L chronic and 0.019 mg/L acute. The resulting assimilative capacity for chlorine was calculated as 0.035 mg/L chronic and 0.019 mg/L acute. Assessment of Fecal Coliform Assimilative Capacity: Mass balance calculations were used to determine the assimilative capacity for fecal coliform. The instream flow was determined from the annual low flow calculation and the effluent flow was determined as the design capacity of both WWTPs. The background concentration for fecal coliform was determined to be 7.59 coliform/100mL from previous sampling data. The full assimilative capacity of the stream for fecal coliform was then calculated based on the above parameters and the water quality standard of 200 coliform/100mL. The resulting assimilative capacity for fecal coliform was calculated as 397 coliform/100mL. Assessment of Ammonia Assimilative Capacity: The CAM uses instream data, effluent data and many variables. Instream pH and temperature were collected by the WWTP just below the discharge point. Instream pH data was obtained from the Discharge Monitoring Reports. Effluent temperature is data submitted by the operator. Instream flow values were determined from the low flow analysis and the effluent flow was determined as the design capacity of the facilities. The values used for the other variables in the model are listed below: • stream velocity = 0.3Q°A • ammonia loss rate = 6/day • pH amplitude was assumed to be medium • default times for pH maximum, temperature maximum, and time of day of occurrence • threshold percent unionized ammonia was taken as 21% • pH rebound was set at the default value of 0.2 s.u. per mile • temperature rebound was set at the default value of 0.7 degrees C per mile. October 26, 2000 5 AU/ AM Colorado Water Quality Control Division Assessment Unit Section 31.8 (3)(c) of the Basic Standards and Methodologies for Surface Water outlines the steps of the Significance Determination consisting of four parts. The discharge of pollutants should not be considered to result in significant degradation of the reviewable waters segment if one of the following summarized conditions were met: 1) greater than 100:1 dilution at low flow, 2) new effluent load is less than 10% of existing load, 3) new effluent load will consume less than 15% of the remaining assimilative capacity, or 4) only temporary change in water quality. The results of the antidegradation review of the Ski Sunlight WWTP new loads demonstrated that the four conditions mentioned above were not met for chlorine, fecal coliforms or ammonia (for several months). Assimilative capacities for chlorine, fecal coliform and ammonia were then adjusted to satisfy condition numbers 2 and 3. The adjusted concentrations if adopted at these values or lower would result in a finding of no significant degradation. The results of the analysis are presented below. Chlorine: The current annual acute permit limit of 0.017 mg/L for chlorine would we allowed to increase by fifteen percent of the remaining assimilative capacity to 0.017 mg/L. Fecal Coliform: The current pennit limit for fecal coliform of 1,070 coliforms/100 mL would be allowed to increase by fifteen percent of the remaining assimilative capacity to 1,171 coliforms/100mL. Ammonia: The current chronic permit limits for total ammonia were used as the existing loads. The current permit limits would be allowed to increase by fifteen percent of the remaining assimilative capacity. Table 4 presents the results of the antidegradation review. Table Ammonia Antidezradation 4 Review Month Current Chronic Permit Limit mg/L New Chronic Assimilative Capacity mg/L Adjusted concentration with<10% additional load mg/L Adjusted concentration with<15% remaining assimilative capacity mg/L Antidegradation Based Chronic Effluent Concentrations mg/L January 24 42 26.4 26.7 26.7 February 24 41 26.4 22.2 22.2 October 26, 2000 7 AU/ AM PART I A. TERMS AND CONDITIONS 1. Service Area Permit, Part I Page la of 21 Permit No. CO -0038598 The service area for this treatment facility is delineated in Figure 1. All wastewater flows contributed in this service area may be accepted by the ski area. for treatment at the authority's wastewater treatment plant provided that such acceptance does not exceed the throughput or design capacity of the treatment works or constitute a substantial impact to the functioning of the treatment works, quality of the receiving waters, human health, or the environment. In addition, the permittee shall enter into and maintain service agreements with any municipalities that discharge into the wastewater treatment facility. The service agreements shall contain all provisions necessary to protect the financial, physical, and operational integrity of the complete wastewater treatment works. 2. Design Capacity The design capacity of this domestic wastewater treatment works is 0.03 million gallons per day (MGD) for hydraulic flow (30 -day average) and 62 Ibs. BODS per day for organic loading (30 -day average). 3. Expansion Requirements Pursuant to Colorado Law, C.R.S. 25-8-501 (5 d & e), the permittee is required to initiate engineering and financial planning for expansion of the domestic wastewater treatment works whenever throughput and treatment reaches eighty (80) percent of design capacity. Whenever throughput and treatment reaches ninety-five (95) percent of the design capacity, the permittee shall commence construction of the necessary treatment expansion. In the case of a domestic wastewater treatment works, which treats wastewater from users under the permittee's jurisdiction, where construction is not commenced in accordance with the above paragraph, the permittee shall cease issuance of building permits within the service area until construction has commenced. If the permittee's domestic wastewater treatment works serves other municipalities or connector districts, the permittee shall have made provisions by contract or otherwise, for the municipalities within the service area to cease issuance of building permits within such service area until construction has commenced. Building permits may continue to be issued for any construction which would not have the effect of increasing the input of sewage to the wastewater treatment works that is the subject of this permit. If, during the previous calendar year, the monthly organic loading (lbs. BOD,/day) to the facility in the maximum month exceeded either 80% or 95% of the organic capacity identified in Part I.A.2. of this permit, the permittee shall submit a report by March 31st of the following year that includes: (1) a schedule for planning for a facility expansion if 80% of the organic capacity was exceeded; or 01) a schedule for construction of a facility expansion if 95% of the organic capacity was exceeded; or (iii) an analysis that indicates that the exceedance of the applicable percentage of the organic capacity (80% or 95%) was an anomaly and is not expected to occur during the current calendar year. If 80% or 95% of the hydraulic capacity identified in Part I.A.2 of this permit was exceeded during the month of maximum flow, then the permittee is not required to provide the information required in paragraphs 0) through (til), above, unless violation(s) of effluent limits can be directly related to the magnitude of the hydraulic loading during any such months. If the permittee has reason to believe that the peak flow in any major interceptor or lift station is expected to cause an overflow from the interceptor or lift station during the current calendar year, the permittee shall submit a report within 30 days of such fording that includes a schedule of actions to be taken immediately that will prevent any overflow to state waters. Permit, Part I Page lc of 21 Permit No. CO.0038598 A. TERMS AND CONDITIONS 6. Effluent Limitations - Continued Effluent Parameter Discharge Limitations Maximum Concentrations 30-Dav Avg. 7-Dav Avg. Daily Max Flow, MGD 0.03 a/ N/A Report e/ 5 -day Biochemical Oxygen Demand (BOD5), mg/1 30 a/ 45 b/ N/A Total Suspended Solids (TSS), mg/I 75 a/ 110 b/ N/A Total Coliform Bacteria, Number/100 ml N/A 23* c/ 240** c/ Total Residual Chlorine, mg/I N/A N/A Report d/ * 7 -day median ** sum of any two consecutive samples 7. Percentage Removal Requirements {BODS and TSS Limitations) In addition to the concentration limitations on BOD5 and Total Suspended Solids (TSS) indicated above, the arithmetic mean of the BOD5 and TSS concentrations for effluent samples collected during the calendar month shall demonstrate a minimum of eighty-five percent (85%) removal of BOD5 and TSS, as measured by dividing the respective difference between the mean influent and effluent concentrations for the calendar month by the respective mean influent concentration for the calendar month, and multiplying the quotient by 100. 8. Industrial Waste Management a) The permittee has the responsibility to protect the Domestic Wastewater Treatment Plant (DWTW), as defined at section 25.8.201(5) of the Colorado Water Quality Control Act, or the Publicly -Owned Treatment Works (POTW), as defined at 40 CFR section 403.3(d) of the federal pretreatment regulations, from pollutants which would inhibit, interfere, or otherwise be incompatible with operation of the treatment works including interference with the use or disposal of municipal sludge. b) Pretreatment Standards (40 CFR Section 403.5) developed pursuant to Section 307 of the Federal Clean Water Act (the Act) require that the permittee shall not allow, under any circumstances, the introduction of the following pollutants to the DWTW from any source of nondomestic discharge: i) Any other pollutant which may cause pass through or interference. ii) Pollutants which create a fire or explosion hazard in the DWTW, including, but not limited to, wastestreams with a closed cup flashpoint of less than sixty (60) degrees Centigrade (140 degrees Fahrenheit) using the test methods specified in 40 CFR Section 261.21; iii) Pollutants which will cause corrosive structural damage to the DWTW, but in no case discharges with a pH of lower than 5.0 s.u., unless the treatment facilities are specifically designed to accommodate such discharges; iv) Solid or viscous pollutants in amounts which will cause obstruction to the flow in the DWTW, or other interference with the operation of the DWTW; v) Any pollutant, including oxygen demanding pollutants (e.g., BOD), released in a discharge at a flow rate and/or pollutant concentration which will cause interference with any treatment process at the DWTW; vi) Heat in amounts which will inhibit biological activity in the DWTW resulting in Interference, but in no case heat in such quantities that the temperature at the DWTW treatment plant exceeds forty (40) degrees Centigrade (104 degrees Fahrenheit) unless the Approval Authority, upon request of the DWTW, approves alternate temperature limits; A. TERMS AND CONDITIONS 8. Industrial Waste Management e) (iv) Continued (3) Permit, Part I Page le of 21 Permit No. CO -0038598 Any discharger contributing five percent or more of the average dry weather hydraulic or organic capacity of the DWTW treatment plant; (4) Any discharger who is designated by the Approval Authority as having a reasonable potential for adversely affecting the DWTW's operation or for violating any Pretreatment Standard or requirements; f) At such time as a specific Pretreatment Standard or requirement becomes applicable to an industrial user of the permittee, the state permitting authority and/or Approval Authority may, as appropriate: g) (i) Amend the permittee's CDPS discharge permit to specify the additional pollutant(s) and corresponding effluent limitation(s) consistent with the applicable national Pretreatment Standards; Require the permittee to specify, by ordinance, order, or other enforceable means, the type of pollutant(s) and the maximum amount which may be discharged to the Permittee's DWTW for treatment. Such requirement shall be imposed in a manner consistent with the program development requirements of the General Pretreatment Regulations at 40 CFR Part 403; and/or, (iii) Require the permittee to monitor its discharge for any pollutant which may likely be discharged from the permittee's DWTW, should the industrial user fail to properly pretreat its waste. The state permitting authority and the Approval Authority retains, at all times, the right to take legal action against any source of nondomestic discharge, whether directly or indirectly controlled by the Permittee, for violations of a permit, order or similar enforceable mechanism issued by the Permittee, violations of any Pretreatment Standard or requirement, or for failure to discharge at an acceptable level under national standards issued by EPA under 40 CFR, chapter I, subchapter N. In those cases where a CDPS permit violation has occurred because of the failure of the permittee to properly develop and enforce Pretreatment Standards and requirements as necessary to protect the DWTW, the state permitting authority and/or Approval Authority shall hold the permittee and/or industrial user responsible and may take legal action against the permittee as well as the Industrial user(s) contributing to the permit violation. 9. Biosolids Limitations and Management Requirements In accordance with the Water Quality Control Commission Biosolids Regulations, Section 64.11, and the Colorado Discharge Permit System Regulations, Section 61.8(3), biosolids generated by this facility to be used for land application for beneficial use shall comply with the following limitations. a) pollutant Limitations (i) Biosolids which are to be land applied to agricultural land, forest land, a public contact site or a reclamation site shall meet either: (1) The daily maximum pollutant concentrations and the cumulative pollutant loading limits identified in the following table; or (2) The daily maximum pollutant concentrations and the monthly average pollutant concentrations identified in the following table. Permit, Part I Page 1g of 21 Permit No. CO -0038598 A. TERMS AND CONDITIONS 9. Biosolids Limitations and Management Requirements b) Pathogen Limitations (Continued) (i) Class A Pathogen Requirements Fecal Coliform and Salmonella Limits Process Requirements (One of the following): Fecal Coliforms shall be < 2,000,000 MPN or CFU/gram of total solids Fecal Coliforms shall be < 1000 MPN/gram of total solids OR AND 1. Composting using either the within -vessel or static aerated pile composting method, the temperature of the sludge is maintained at 55EC or higher for three days. Salmonella shall be < 3 MPN/4 OR grams of total solids 2. Composting using the windrow method, the temperature of the sludge is maintained at 55EC or higher for 15 days or longer, with a minimum of 5 turnings of the pile during those 15 days. • (ii) Class B Pathogen Requirements Fecal Coliform Limit Process Requirements: Fecal Coliforms shall be < 2,000,000 MPN or CFU/gram of total solids OR Aerobic digestion for 40 days at 20EC to 60 days at 15EC. Anaerobic digestion for 15 days within 35EC-55EC to 60 days at 20EC (iii) Site Restrictions The permittee shall comply with all of the site restrictions listed below: (1) Food crops with harvested parts that touch the biosolids/soil mixture and are totally above the land surface shall not be harvested for 14 months after application. (2) Food crops with harvested parts below the land surface shall not be harvested for 20 months after application if the biosolids remain on the land surface for four months or more prior to incorporation into the soil. (3) Food crops with harvested parts below the land surface shall not be harvested for 38 months after application if the biosolids remain on the land surface for less than four months prior to incorporation into the soil. (4) Other food crops and feed crops shall not be harvested from the land for 30 days after application. (5) Animals shall not be allowed to graze on the land for 30 days after application. (6) Turf grown on land where biosolids are applied shall not be harvested for one year after application if the harvested turf is placed on either land with a high potential for public exposure or a lawn. Public access to land with a high potential for public exposure shall be restricted for one year after application. (8) Public access to land with a low potential for public exposure shall be restricted for 30 days after application. (7) Permit, Part I Page li of 21 Permit No. CO -0038598 A. TERMS AND CONDITIONS 9. Biosolids Limitations and Management Requirements d) Biosolids Management Practices (ii) (Continued) A. a vegetated buffer strip of at least 50 feet is provided between the application area and the site boundary; or, B. Division approval has been obtained based upon a plan demonstrating adequate runoff containment measures. (6) The biosolids or the application of the biosolids shall not cause or contribute to the harm of a threatened or endangered species or result in the destruction or adverse modification of critical habitat of a threatened or endangered species after application. (7) (8) (9) For biosolids that are sold or given away, either a label shall be affixed to the bag or similar enclosure or an information sheet shall be provided to the person who receives the biosolids. The label or information sheet shall contain: A. The name and address of the person who prepared the biosolids for sale or give away for application to the land. B. A statement that prohibits the application of the biosolids to the land except in accordance with the instructions on the label or information sheet. C. When biosolids which are sold or given away do not meet the monthly average pollutant concentrations, the annual whole biosolids application rate for biosolids which do not cause the annual pollutant loading rates to be exceeded. Biosolids subject to the cumulative pollutant loading rates shall not be applied to agricultural land, forest, a public contact site, or a reclamation site if any of the cumulative pollutant loading rates have been reached. If the permittee applies the shtdge, it shall provide the owner or lease holder of the land on which the biosolids are applied notice and necessary information to comply with the requirements in this permit. (Hi) Social Conditions on Biosolids Storage Permanent storage of biosolids is prohibited. Biosolids shall not be temporarily stored for more than two years. Written permission to store biosolids for more than two years must be obtained from the Division. Storage of biosolids for more than two years will be allowed only if it is determined that significant treatment is occurring. (iv) Change in Biosolids Treatment System or Use/Disposal Practice The permittee must inform the Division and the EPA at least 180 days prior to any significant change in the biosolids generation and handling processes at the plant and any major change in use/disposal practices. This includes, but is not limited to, the addition or removal of biosolids treatment units (e.g., digesters, drying beds, etc.) and/or any other change which would require a major modification of the permit (e.g., changing from land application to surface disposal). For any biosolids that are landfilled, the requirements in section 2.12 of the latest version of the Region VIII Biosolids Management Handbook should be followed. Permit, Part I Page lk of 21 Permit No. CO -0038598 B. MONITORING REQUIREivv1ENTS 3. Ground Water Monitoring In order to obtain an indication of the probable compliance or noncompliance with the effluent limitations specified in Part I, Section A.S, the permittee shall monitor effluent parameters at the following required frequencies, the results to be reported on the Discharge Monitoring Report (See Part I, Section D.2.): Ground Water Parameter Frequency Sample Tvpe f/ Depth to ground water, ft. Monthly Measured Total Coliform Bacteria, number/100m1 Monthly Grab Total Nitrate as N, mg/I Monthly Grab Total Dissolved Solids, mg/1 Monthly Grab pH, standard units Monthly Grab Conductivity Monthly Grab Temperature, F° Monthly Grab Self-monitoring samples taken in compliance with the monitoring requirements specified above shall be taken at the following location(s): Monitoring points 050B, C, and D; and upgradient monitoring points 051A and B. Monitoring of the upgradient wells to begin 9/1/01. 4. cannily Parameters In order to obtain an indication of the increase in salinity due to the treatment and use of water within this service area, the permittee shall monitor the raw water source and the wastewater effluent at the following required frequencies, the results to be reported on the Discharge Monitoring Report (See Part I, Section D.2.): Salinity Parameter Frequency j/ Sample Type ('/ Raw Water Source - Total Dissolved Solids, TDS, mg/1 Quarterly Grab Wastewater Effluent - Total Dissolved Solids, TDS, mg/I Quarterly Grab Self-monitoring samples taken in compliance with the monitoring requirements specified above shall be taken prior to treatment of the raw drinking water source (with a composite sample proportioned to flow prepared from individual grab samples if more than one source is being utilized), and at the established wastewater treatment facility effluent sampling point identified above in Part I, Section B.2. 5. Biosolids Parameters a) If biosolids from the treatment facilities are removed and are disposed of at a solid waste disposal site or applied to land for beneficial use*, the following requirements apply. The discharge of solid waste to land for disposal is regulated by the Colorado Solid Wastes Disposal Sites and Facilities Act (30-20, Part 1 CRS 1973). The Act requires that either a Certificate of Designation be issued by the appropriate board of county commissioners for any disposal site located within an unincorporated portion of a county, or that approval be granted by the appropriate governing body of an incorporated portion of a county for any disposal site located within that incorporated area. Biosolids are considered, by definition, [30-20-101(6)] to be a solid waste. Section 30-20-102(6) provides an exemption from the Certificate of Designation requirement for biosolids which are used in a beneficial manner and are designated as meeting all applicable regulations of the Department. The application of biosolids to agricultural or disturbed land as a soil conditioner/fertilizer is subject to the Colorado Biosolids Regulations, Regulation No. 64 (5CCR 1002-64). Biosolids disposed of in this manner shall comply with the requirements of these Regulations. d) Analytical and Sampling Methods for Monitoring Sample collection, preservation and analysis shall be performed in a manner consistent with the requirements of the Biosolids Regulations, 64 (SCCA 1002-64) and/or other criteria specified in this permit. Metals analyses are to be performed using method SW 846 with samples prepared in accordance with method 3050. The methods are also described in the latest version of the EPA Region VIII Biosolids Management Handbook. "Beneficial Use" means the use of nutrients and/or moisture in the biosolids to act as a soil conditioner or low grade fertilizer for the promotion of vegetative growth on land. Permit, Part I Page lm of 21 Permit No. CO -0038598 C. SPECIAL REQUIREMENTS 1. Monitoring/Sampling Protocol To ensure consistent results in the ground water monitoring program, the permittee is required to submit a sampling protocol to the Division for approval by August 31, 2001. The approved protocol is to be utilized during sampling beginning in September 1, 2001. The sampling protocol is to include the following guidelines: Sampling Protocol (A) Determine static water level with one of the following: (a) a "popper" (a steel tape with a metal cylinder for a weight), or (b) a steel tape - a chalked (carpenter's or blackboard chalk) steel tape with a weight. Be certain to use a surveyed measuring point to determine water surface elevation. Do not pump well during measurement. The total depth of the well should be measured quarterly to determine if the well is "silting in". (B) If a well will not readily recharge once the water in the casing is evacuated, it is the Division's position that the water in the well be sampled, using a bladder pump or peristaltic pump, a bottom opening bailer or a syringe sampler. A "Micro Purge" type system is acceptable upon approval by the Division. (C) Prior to taking the water sample from the well, the permittee shall determine the temperature, pH, specific conductance and dissolved oxygen of the ground water. There are field instruments available to perform field analysis of the above parameters. Each value for an individual parameter shall be within 10% of the previous/succeeding value, in order to establish the time when a ground water sample is taken. Before taking the water sample from the well, it is important that all sampling devices be carefully cleaned. A dilute hydrochloric acid rinse followed by successive rinses with deionized water, acetone and distilled organic flee water is routinely used In a badly contaminated situation, a hot water detergent wash before the above rinsing procedure may be necessary. Hexane rinses before the final distilled inorganic water rinse will aid in the removal of sparingly soluble organic materials before sampling for low level organic pollutants. Maintain consistent and uniform procedures throughout the sampling procedure. Dedicated sampling equipment need not be rinsed. (D) (E) If the monitoring wells do not yield at a rate adequate to be effectively flushed, a suggested procedure includes removing the water in the well casing to the top of the screened interval to prevent exposure of the gravel pack or formation to atmospheric conditions. The sample is then taken at a rate that would not cause rapid drawdown. If there is sufficient water in the formation to permit a slow recharge, then the well may be pumped dry and allowed to recover. The samples should be collected as soon as a volume of water sufficient for the intended analytical scheme reenters the well. Exposure of water entering the well for periods longer than 2 to 3 hours may render samples unsuitable and unrepresentative of water contained within the aquifer system. In these cases, it may be desirable to collect small volumes of water over a period of time, each time pumping the well dry and allowing it to recover. Whenever full recovery exceeds 3 hours, samples should be collected in order of their volatility as soon as sufficient volume is available for a sample for each analytical parameter or compatible set of parameters. Parameters that are not pH sensitive or subject to loss through volatilization should be collected last. Few reliable data exist on when to choose one sampling method over another in "tight" formations. (F) A preferred collection order, which ranks the parameters by volatilization sensitivity, is as follows: Sampling Protocol Volatile Organics (VOA) Purgeable organic carbon (POC) Purgeable organic halogens (PDX) Total organic halogens (TOX) Total organic carbon (TOC) Turbidity Cyanide Sulfate and chloride Dissolved metals Phenols Extractable organics Total metals The samples, other than the ones that were field determined, should have the proper container, should have the correct preservative, should be designated as to whether it is to be filtered or not, should have the proper volume of water taken for analysis and should be analyzed prior to exceeding the maximum holding time. All data shall be submitted to the Division by the 28th day of the month following sample taking/analysis. Starting on September 1, 2000, the permittee is to take a ground water sample. Hence, the analytical results of a sample taken in September 2000 are due to the Division by October 28, 2000. The Division will determine if there are limitations changes necessary and whether the permit is to be amended to bring about any necessary changes. Permit, Part I Page to of 21 Permit No. CO -0038598 9 d 2 0 w O z Permit, Part I Page 3 of 21 FOOTNOTES: (Continued) e/ - The "Daily Maximum" limitation for this parameter shall be applied as a maximum daily average. The daily average is defined as the arithmetic mean of the analytical results for all samples collected during a 24-hour period. If only one sample is collected during the 24-hour period, the analytical result for that single sample shall be used as the daily average. Report the maximum of all daily average values within the calendar month. Any daily average beyond the noted daily maximum limitation for the indicated parameter shall be considered a violation of this permit. f/ - Definitions for sample types are as follows: (i) A "recorder" requires the continuous operation of a chart and/or totalizer (or drinking water rotor meters or pump hour meters where previously approved). (ii) A "composite" sample, for monitoring requirements, is defined as a minimum of four (4) grab samples collected at equally spaced two (2) hour intervals and proportioned according to flow. (iii) A "24 hour composite" sample is a combination of at least eight (8) sample aliquots of at least 100 milliliters, collected at equally spaced intervals during the operating hours of a facility over a twenty-four (24) hour period. For volatile pollutants, aliquots must be combined in the laboratory immediately before analysis. The composite must be flow proportional; either the time interval between each aliquot or the volume of each aliquot must be proportional to either the wastewater or effluent flow at the time of sampling or the total wastewater or effluent flow since the collection of the previous aliquot. Aliquots may be collected manually or automatically. (iv) A "grab" sample, for monitoring requirements, is defined as a single "dip and take" sample collected so as to be representative of the parameter being monitored. (v) An 'instantaneous" measurement, for monitoring requirements, is defined as a single reading, observation, or measurement using existing monitoring facilities. (vi) A "sludge composite" sample is a representative sample of sludge from a wastewater treatment process unit, storage unit or stabilization process unit. The sample shall consist of a minimum of three grab samples of 500 milliliters each taken at the start, middle and end of a pumping cycle, or if discharge is continuous or of a cyclical nature, grab samples of 250 milliliters each shall be taken four times during a twenty-four (24) hour period and combined. Composited samples of semidewatered, dewatered and dried sludge shall consist of a minimum of four (4) grab samples of 0.5 kilograms each taken four times during a twenty-four (24) hour period and combined. - Monitoring is required only when chlorine is used for disinfection. In the calculation of average total residual chlorine concentrations, those analytical results that are less than the method detection limit shall be considered to be zero for calculation purposes. If all individual analytical results that would be used in the calculations are below the method detection limit, then "less than x ", where x is the method detection limit, shall be reported on the monthly DMR. Otherwise, report the calculated value. For purposes of this permit the method detection limits of the DPD colorimetric and the amperometric titration methods of analysis for total residual chlorine are as follows: Method DPD colorimetric Amperometric titration Method Detection Limit. mg/1 0.10 mg/I 0.05 mg/1 If, during the life of this permit, there are improvements in approved analytical procedures that result in lower detection limits, this permit may be reopened to propose the incorporation of those detection limits into this permit. Modification of the permit will be in accordance with the requirements of 40 CFR, Part 124. h/- RESERVED If visible sheen is noted, a grab sample shall be collected and analyzed for oil and grease. The results are to be reported on the DMR under parameter 03582. j/ - When the measurement frequency indicated is quarterly, samples may be collected at any time during the calendar quarter, with the results being reported on the monthly DMR corresponding to the last month of the quarter (March, June, September or December). If the discharge is intermittent, samples must be collected during the period when discharge Permit, Part I Page 5 of 21 C. ADDITIONAL MONITORING REQUIREMENTS 6. Flow Measuring Devices Flow metering at the headworks shall be provided to give representative values of throughput and treatment of the wastewater system. The metering device shall be equipped with a Local flow indication instrument and a flow indication-recording-totalization device suitable for providing permanent flow records, which should be in the plant control building. For mechanical facilities, where influent flow metering is not practical and the same results may be obtained from metering at the effluent end of the treatment facility, this type of flow metering arrangement will be considered: For lagoons, an instantaneous or continuous effluent flow measuring device shall be required in addition the above described influent flow measuring device. At the request of the Division, the permittee must be able to sho proof of the accuracy of any flow -measuring device used in obtaining data submitted in the monitoring report. The flow -measuring device must indicate values within ten (10) percent of the actual flow entering the facility. D. REPORTING 1. Signatory Requirements All reports, and other information required by the Division shall be signed and certified for accuracy by the permittee accord with the following criteria: a) In the case of corporations, by a principal executive officer of at least the level of vice-president or his or her dr authorized representative, if such representative is responsible for the overall operation of the facility from whit the discharge described in the form originates; b) In the case of a partnership, by a general partner; c) In the case of a sole proprietorship, by the proprietor; d) In the case of a municipal, state, or other public facility, by either a principal executive officer, ranking elected official, or other duly authorized employee. The permittee shall, with the exception of reporting the results of whole effluent toxicity (WET) tests, make the following certification on all such documents: "I certify under penalty of law that this document and all attachments were prepared under my direction or supervisio; accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsib for gathering the information, the information submitted is to the best of my knowledge and belief, true, accurate and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations". Permit, Part I Page 7 of 21 D. REPORTING 3. Annuai Report a) Annual Biosolids Report: The permittee shall provide the results of all biosolids monitoring performed in accordance with Part I.B.3, and information on management practices, land application sites, site restrictions and certifications. Such information shall be provided no later than February 19th of each year. Reports shall be submitted addressing all such activities which occur in the previous calendar year. If no biosolids were applied to the land during the reporting period, "no biosolids applied" shall be reported. Until further notice, biosolids monitoring results shall be reported on forms, or copies of forms, provided by the Division. Annual Biosolids Reports required herein, shall be signed and certified in accordance with the Signatory Requirements, Part I.D.1, and submitted as follows: original to: copy to: COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT, WATER QUALITY CONTROL DIVISION WQCD-P-B2 4300 CHERRY CREEK DRIVE SOUTH DENVER, COLORADO 80246-1530 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY, REGION VIII DENVER PLACE, 999 18TH STREET, SUITE 500 DENVER, COLORADO 80202-2466 ATTENTION: BIOSOLIDS PROGRAM MANAGER P2WP 4. ficial Notifications a) Definitions (i) Bypass: The intentional diversion of waste streams from any portion of a domestic wastewater treatment works. Severe Property Damage: 1) Substantial physical damage to property at the treatment facilities to cause them to become inoperable, or 2) substantial and permanent loss of natural resources which can reasonabl be expected to occur in the absence of a bypass. Spill: An incident in which flows or solid materials are accidentally or unintentionally allowed to flow or escape so as to be lost from the domestic wastewater treatment works as defined in the Colorado Water Quality Control Act, which may cause pollution of state waters. (iv) Upset: An exceptional incident in which there is unintentional and temporary noncompliance with permit effluent limitations because of factors beyond the reasonable control of the permittee. An upset does not include noncompliance to the extent caused by operational error, improperly designed treatment facilities, inadequate treatment facilities, lack of preventive maintenance, or careless or improper operation. Permit, Part I Page 9 of 21 D. REPORTING 4. Special Notifications e) Change in Discharge or Wastewater Treatment Facility The permittee shall inform the Division (Permits Unit) in writing of any intent to construct, install, or alter any process, facility, or activity that is likely to result in a new or altered discharge either in terms of location or effluent quality prior to the occurrence of the new or altered discharge, and shall furnish the Division such plans and specifications which the Division deems reasonably necessary to evaluate the effect on the discharge and receiving stream. Notice is required only when: (i) The alteration or addition could significantly change the nature or increase the quantity of pollutants discharged; or (ii) The alteration or addition results in a significant change in the permittee's sludge use or disposal practices, and such alteration, addition, or change may justify the application of permit conditions that are different from or absent in the existing permit, including notification of additional use or disposal sites not reported pursuant to an approved land application plan. If the Division finds that such new or altered discharge might be inconsistent with the conditions of the permit, the Division shall require a new or revised permit application and shall follow the procedures specified in the Colorado Discharge Permit System Regulations, SCCR 1002.61, Sections 61.5 through 61.6, and 61.15 prior to the date that the new or altered discharge takes place. f) Deactivation The permittee shall notify the Permits Unit of the Division within thirty (30) days of deactivation of the permitted facility. Deactivation includes ceasing operation of the facility, ceasing all discharges to State Waters for the remaining term of the existing permit and/or the connection to another wastewater treatment facility. Permit, Part II Page 11 of 21 A. MANAGEMENT REQUIREMENTS AND RESPONSIBILITIES 3. Reduction. Loss. or Failure of Treatment Facility The permittee has the duty to halt or reduce any activity if necessary to maintain compliance with the effluent limitatio of the permit. Upon reduction, loss, or failure of the treatment facility, the permittee shall, to the extent necessary to maintain compliance with this permit, control sources of wastewater, or all discharges, or both until the facility is restored or an alternative method of treatment is provided. This provision also applies to power failures, unless an alternative power source sufficient to operate the wastewater control facilities is provided. In an enforcement action a permittee shall not use a defense that it would be necessary to halt or reduce the permitted activity in order to maintain compliance with the conditions of this permit. 4. Removed Substances Solids, sludges, filter backwash, or other pollutants removed in the course of treatment or control of wastewaters shall be disposed of in a manner such as to prevent any pollutant from such materials from entering waters of the State. For all domestic wastewater treatment works, the permittee shall dispose of sludge in accordance with State and Feder regulations. 5. Minimization of Adverse Impacts The permittee shall take all reasonable steps to minimize or prevent any adverse impact to waters of the State resulting from any discharge. As necessary, accelerated or additional monitoring of the influent or effluent will be required to determine the nature and impact of noncompliance. 6. Discharge Point Any discharge to the waters of the State from a point source other than specifically authorized herein is prohibited. 7. Inspections and Right to Entry The permittee shall allow the Director of the Division, and/or authorized representatives, upon the presentation of credentials: a) To enter upon the permittee's premises where a regulated facility or activity is located or in which any records az required to be kept under the terms and conditions of this permit; b) At reasonable times to have access to inspect and copy any records required to be kept under the terms and conditions of this permit and to inspect any monitoring equipment or monitoring method required in the permit; a c) To enter upon the permittee's premises in a reasonable manner and at a reasonable time to inspect and/or investigate any actual, suspected, or potential source of water pollution, or to ascertain compliance or noncompliance with any applicable state or federal statute or regulation or any order promulgated by the division. The investigation may include, but is not limited to the following: sampling of any discharge and/or process waters, the taking of photographs, interviewing of any persons having any knowledge related to the discharge permit or alleged violation, access to any and all facilities or areas within the permittee's premises that may have any affect on the discharge, permit, or alleged violation. Such entry is also authorized for the purpose of inspecting and copying records required to be kept concerning any effluent source. Permit, Part II Page 13 of 21 B. ADDITIONAL CONDITIONS 1. Permit Violations Failure to comply with any terms and/or conditions of this permit shall be a violation of this permit. The discharge o: any pollutant identified in this permit more frequently than or at a level in excess of that authorized shall constitute a violation of the permit. 2. Civil and Criminal Liability Except as provided in Part I, Section C and Part II, Section A, nothing in this permit shall be construed to relieve the permittee from civil or criminal penalties for noncompliance (See 40 CPR 122.60) 3. State Laws Nothing in this permit shall be construed to preclude the institution of any legal action or relieve the permittee from a: responsibility, liabilities, or penalties established pursuant to any applicable State law or regulation under authority preserved by Section 510 of the Clean Water Act. 4. Division Emergency Power Nothing in this permit shall be construed to prevent or limit application of any emergency power of the division. 5. Severability The provisions of this permit are severable. If any provisions of this permit, or the application of any provision of thi permit in any circumstance, is held invalid, the application of such provision to other circumstances and the applicatic of the remainder of this permit shall not be affected. 6. Oil and Hazardous Substance Liability Nothing in this permit shall be construed to preclude the institution of any legal action or relieve the permittee from a: responsibilities, liabilities, or penalties to which the permittee is or may be subject under Section 311 (Oil and Hazardous Substance Liability) of the Clean Water Act, except as recognized by federal law. 7. Property Rights Ile issuance of this permit does not convey any property or water rights in either real or personal property or stream flow or any exclusive privileges, nor does it authorize any injury to private property, any invasion of personal rights, any infringement of Federal, State, or local laws or regulations. Permit, Part 11 Page 15 of 21 B. ADDITIONAL CONDITIONS 8. Modification. Suspension, or Revocation of Permit b) (iii) (Continued) (2) EPA has revised, withdrawn, or modified that portion of the regulation or effluent limitation guideline on which the permit condition was based, or has approved a Commission action with respect to the water quality standard or effluent limitation on which the permit condition was based; and (3) The permittee requests modification as required in the Colorado Discharge Permit System Regulations after the notice of final action by which the EPA effluent limitation guideline, water quality standard, or effluent limitation is revised, withdrawn, or modified; or (4) For judicial decisions, a court of competent jurisdiction has remanded and stayed EPA promulgated regulations or effluent limitation guidelines, if the remand and stay concern that portion of the regulations or guidelines on which the permit condition was based and a request is filed by the permittee in accordance with this Regulation, within ninety (90) days of judicial remand. (iv) The Division determines that good cause exists to modify a permit condition because of events over which the permittee has no control and for which there is no reasonable available remedy. (v) The permittee has received a variance. (vi) When required to incorporate applicable toxic effluent limitation or standards adopted pursuant to 307(a) of the Federal act. (vu) When required by the reopener conditions in the permit. (viii) As necessary under 40 C.F.R. 403.8(e), to include a compliance schedule for the development of a pretreatment program. (ix) When the level of discharge of any pollutant which is not limited in the permit exr-P'tc the level which can be achieved by the technology-based treatment requirements appropriate to the permittee under Section 61.8 (b) of the Colorado Discharge Permit System Regulations. (x) To establish a pollutant notification level required in Section 61.8 (c) of the Colorado Discharge Permit System Regulations. (xi) To correct technical mistakes, such as errors in calculation, or mistaken interpretations of law made in determining permit conditions, to the extent allowed in Section 61.10 of the Colorado Discharge Permit System Regulations. (xii) When required by a permit condition to incorporate a land application plan for beneficial reuse of sewage sludge, to revise an existing land application plan, or to add a land application plan. (xiii) For any other cause provided in Section 61.10 of the Colorado Discharge Permit System Regulations. c) Any condition set forth in the approval of the site location may become a condition of the permit, if so identified. Any site approval condition that is included in this permit pursuant to these regulations shall only be subject to enforcement through the Colorado Water Quality Control Act, C.R.S. 25-8-101, et seq. Permit, Part II Page 17 of 21 B. ADDITIONAL CONDITIONS 8. Modification Suspension or Revocation of Permit (Continued) h) The filing of a request by the permittee for a permit modification, revocation and reissuance or termination does not stay any permit condition. i) All permit modifications and reissuances are subject to the antibacksliding provisions setforth in 61.10 (e) through (g) of the Colorado Discharge Permit System Regulations. 9. Permit Renewal Application If the permittee desires to continue to discharge, a permit renewal application shall be submitted at least one hundred eighty (180) days before this permit expires. If the permittee anticipates there will be no discharge after the expiration date of this permit, the division must be promptly notified so that it can terminate the permit in accordance with Part II Section B.B. 10. Confidentiality Any information relating to any secret process, method of manufacture or production, or sales or marketing data, which may be acquired, ascertained, or discovered, whether in any sampling investigation, emergency investigation, or otherwise, shall not be publicly disclosed by any member, officer, or employee of the commission or the division, but shall be kept confidential. Any person seeking to invoke the protection of this Subsection (10) shall bear the burden of proving its applicability. This section shall never be interpreted as preventing full disclosure of effluent data. 11. Fees The permittee is required to submit an annual fee as set forth in the 1983 amendments to the Water Quality Control Act, Section 25-8-502 (1) (b), and the Colorado Discharge Permit System Regulations SCCR 1002-61, Section 61.15 as amended. Failure to submit the required fee when due and payable is a violation of the permit and will result in enforcement action pursuant to Section 25-8-601 et. seq., C.R.S. 1973 as amended. Permit, Part III Page 19 of 21 Toxic Pollutants And Hazardous Substances Organic Toxic Pollutants in Each of Three Fractions in Analysis by Gas Chromatography/Mass Spectroscopy (GC/MS) Volatiles Base/Neutral Acrolein Acenaphthene Acrylonitrile Acenaphthylene Benzene Anthracene Bromoform Benzidine Carbon Tetrachloride Benzo(a)anthracene Chlorobenzene Benzo(a)pyrene Cblorodibromomethane 3,4-Benzofluoranthene Chloroethane Benzo(ghi)perylene 2-Chloroethylvinyl Ether Benzo(k)fluoranthene Chloroform Bis(2-cbloroethoxy)methane Dichlorobromomethane Bis(2-chloroisopropyl)ether 1,1-Dichloroethane Bis(2-ethylhexyl)phthalate 1,2-Dichloroethane 4-Bromophenl phenylether 1,1-Dichloroethylene Butylbenzyl phthalate 1,2-Dichloropropane 2-Cbloronaphtbalene 1,2-Dichloropropylene 4-Chlorophenyl phenylether E hylbenzene Chrysene Methyl Bromide Dibenzo (a,h) anthracene Methyl Chloride 1,2 -Dichlorobenzene Methylene Chloride 1,3 -Dichlorobenzene 1,1,2,2 -Tetrachloroethane 1,4 -Dichlorobenzene Tetrachloroethylene 3,3-Dichlorobenzidine Toulene Diethylphthalate 1,2-Transdichloroethylene Dimethylphthalate 1,1,1 -Trichloroethane Di-n-butylphthalate 1,1,2 -Trichloroethane 2,4-Dinitrotoluene Trichloroethylene 2,6-Dinitrotoluene Vinyl Chloride Di-n-octylphthalate 1,2-Diphenylhydrazine (as azobenzene) Acid Compounds Fluoranthene Fluorene 2 -Chlorophenol Hexachlorobenzene 2,4-Dichlorophenol Hexachiorobutadiene 2,4 -Dimethylphenol Hexacllorcyclopentadiene 4,6-Dinitroo-cresol Hexachloroethane 2,4-Dinitrophenol Indino(1,2,3-cd) pyrene 2-Nitrophenol Isophorone 4-Nitrophenol Naphthalene P -chloro -m -cresol Nitrobenzene Pentachlorophenol N-Nitrosodimethylamine Phenol N-Nitrosodi-n-propylamine 2,4,6 -Trichlorophenol N-Nitrosodiphenylamine Phenanthrene Pyrene 1,2,4-Trhichlorobenzene bis(2-chlorcethyl)ether Inorganic Toxic Pollutants Asbestos Hazardous Substances Acetaldehyde Allyl alcohol Allyl chloride Amyl acetate Aniline Benzonitrile Benzyl chloride Butyl acetate Butylamine Captan Carbaryl Carbofuran Carbon disulfide Chlorpyrifos Coumaphos Cresol Crotonaldehyde Cyclohexane 2,4-D(2,4-Dichlorophenoxy acetic acid) Diazinon Dicamba Dichlobenil Dichlone 2,2-Dichloropropionic acid Dichlorvos Diethyl amine Dimethyl amine Dinitrobenzene Diquat Disulfoton Diuron Epichlorohydrin Ethanolamine Ethion Ethylene diamine Ethylene dibromide Formaldehyde Furfural Guthion Isoprene Isopropanolamine Keithane Kepone Permit, Part III Page 21 of 21 Toxic Pollutants And Hazardous Substances Malathion Mercaptodimethur Methoxychlor Methyl mercaptan Methyl methacxrylate Methyl parathion Mevinphos Mexacarbate Monoethyl amine Monomethyl amine Naled Napthenic acid Nitrotoluene Parathion Phenolsulfanate Phosgene Propargite Propylene oxide Pyrethrins Quinoline Resorcinol Strontium Strychnine Styrene TDE (Tetrachlorodiphenylethane) 2,4,5-T (2,4,5-Trichlorophenoxyacetic acid) 2,4,5 -TP [2-(2,4,5-Trichlorophenoxypropanoic acid) Trichlorofon Triethylamine Trimethylamine Uranium Vandium Vinyl Acetate Xylene Xylenol Zirconium Exhibit "G" Correspondence to CDPHE Name Pages Letter to Karen Young, December 8, 2000 2 Letter from Karen Young, January 29, 2001 1 JOHN A. THULSON EDWARD MULHALL. JR. SCOTT BALCOMB LAWRENCE R. GREEN TIMOTHY A. THULSON LORI J. M. SATTERFIELD EDWARD B. OLSZEWSKI DAVID SANDOVAL CHRISTOPHER L. GEIOER ANNE MARIE CALLAHAN Karen Young State of Colora Colorado 1- • artment of Public Healt d Environment 4301 herry Creek Drive South nver, Colorado 80246-1530 BALCOMB iC GREEN, P.C. ATTORNEYS AT LAW P. O. DRAWER 700 818 COLORADO AVENUE GLENWOOD SPRINGS, COLORADO 81602 Telephone: 970.945.6546 Facsimile: 970.945.8902 ecember 8, 2000 Via facsimile (303) 782-0390 (original to follow) OF COUNSEL: KENNETH BALCOMB DEC 1 1 2000 L1 Re: Draft CDPS Permit Number Co -0038598 Garfield County Dear Ms. Young: This law firm represents Sunlight, Inc., the permittee in the above -referenced draft permit. It is our understanding that you had a telephone discussion with one of Sunlight's Board Members, Louis Meyer, yesterday regarding several matters. The discussion included Sunlight's need for an additional ninety (90) days to comment on the draft permit. This will serve as our formal request for a ninety (90) day extension. The following will also serve as our preliminary comments to the draft permits. First, the permitee should be identified as Sunlight, Inc. Please delete all references to "Ski Sunlight"and replace with "Sunlight, Inc." Second, it appears that certain terms and conditions of the proposed permit are incomplete. It is our understanding that Mr. Luzzi or staff is in the process of revising the limits found in Table VI -1 -Effluent Limits for OO1A to Four Mile Creek. Please advise as soon as these revisions are complete. Karen Young December 8, 2000 Page 2 Third, the modeling for ammonia on Four Mile Creek should include the data that Sunlight was required to collect with respect to flows on the Creek. This data demonstrates that a 0.0 cfs low flows do not occur in August, September, and October. You have apparently advised Mr. Meyer that there are in fact errors in the ammonia portion of the draft permit. Fourth, we believe Table Ii -2, Effluent Limits of 002A to snow making/land application quotes the wrong standard for Total Chloroform. The standard should apply to E -coli. The water is applied to a restricted use area (not to the ski slopes). We believe the land application standard should be based on 85.6 (B) see attached. Fifth, under Section Vl-D Additional Terms and Conditions Code 03009, additional lining of the ponds would require approval of plans and specifications and possible revision to the site application. While we could possibly complete an application by the September 31, 2001 date, the physical work would not be possible under that schedule. We thank you for your agreement to allow Sunlight, Inc. additional time in which to provide further and more detailed comments. We ask that you contact us to confirm that our request for a ninety (90) day extension has been approved. Very truly yours, BALCOMB & GREEN, P.C. By DS:nmk cc: Tom Jankovsky Tom Zancanella Louis Meyer ✓ David Sandoval • STATE OF COLORADO Sill Owen. Gower ASS E NORM, afiliZlitist Mita( pechrcasdto protecting and improving the health and environment tithe pewit of Colorado 4300 Ory Creek Dr. 5. Laboratory and Radio/an Services Division Driver, Colorado 802464530 8100 Lowry Blvd. MOW (303) 692-2000 Denver. Colorado 802366928 100 Line (3031691.7700 (303) 692-3090 Located in Glent)e Colorado heolli vw:cephe.statem.us January 29, 2001 Cdooft�avLia'�tD�- t liesbh 26AMti e -St David Sandoval Balcomb & Green, P.C. Drawer ?90 Glenwood Springs, CO 81602 RE: Stmtight, l-, Permit No. CO -0038598, Garfield County Dear Mr. Sandoval: We are in receipt of your request for a ninety (90) day extension of the public notice period to finaii7r your comments. This is being granted. If you have any questions regarding this matter, please contact me at (303)+692-3614. Sincerely, Karen Young Environmental Protection Specialist Permits Unit Water Quality Protection Section Water Quality Control Division xc: tan] Health Depanmeat Dwain Wako, Digit BBginas. Grand 3t ion Office NYS-3 File E/E SOWd Z06SSb60G6.OI Od N33310 43 SWOO'IVS°W083 b9°SI t0-6Z-NVr Exhibit "H" Proposed WWTF Schedule Name Pages WWTF Schedule 1 (11"x17") ID 0 Task Name Duration Start Finish Predecessors Resource Names 2001 Jun Jul /Aug Sep Oct NovjDec 2002 Jan Feb Mar Apr May Juni Jul ]Aug Sep Oct Novi Dec 2003 Jan FebiMar Apr May Jun Jul AuglSep Oct Jan IFeb Mari AprjMay 1 Analysis of Situation 5 days Fri 1/12/01 Thu 1/18/01 I Richard Schafstall,Larry 1 J. Mi Bodnar,Richard Green Schafstall Schroeder rd Schafstall,Larry Green Lorentson Schafstall,LeoFiard Lorentson Green,Lewis Larry Meyers Green,Lewis Meyers Lewis Meyers Lewis Meyers Schafstall 2 Notify JV Members 1 day Fri 1/19/01 Fri 1/19/01 1 Richard Schafstall,Larry Green 3 Plant Location 1 day Fri 1/12/01 Fri 1/12/01 J. Michael Bodnar,Richard Schafs. ael Greg Schroeder Greg - - Leonard J. Miehael-Bedner-Richard 4 Site Assesment I 35 days Fri 1/12/01 Thu 3/1/01 Greg Schroeder 5 Site Assesment II 25 days Fri 3/2/01 Thu 4/5/01 4,3 Greg Schroeder 6 Send SA to JV Members 1 day Fri 4/6/01 Fri 4/6/01 5 Richard Schafstall,Larry Green 7 Response Time from JV 15 days Mon 4/9/01 Fri 4/27/01 6 Leonard Lorentson 8 Plant Size 1 day Fri 1/12/01 Fri 1/12/01 J. Michael Bodnar,Richard Schafs I 9 g Prepare Site Application 80 days Tue 5/22/01 Mon 9/10/01 6,8 Larry Green,Lewis Meyers Larry 10 Garfield Co Approval 45 days Tue 9/11/01 Mon 11/12/01 9 Larry Green,Lewis Meyers 11 Co State Healtd Dept Approval 90 days Tue 11/13/01 Mon 3/18/02 10 Lewis Meyers , 3 12 Engineering Design I 50 days Tue 3/19/02 Mon 5/27/02 11 Lewis Meyers Lewis Meyers 13 Engineering Design II 50 days Tue 5/28/02 Mon 8/5/02 12 Lewis Meyers r, 14 Pick Manufacture of Plant 20 days Tue 3/19/02 Mon 4/15/02 11 Bob Stine Bob Stine 15 Manufacture Design 20 days Tue 4/16/02 Mon 5/13/02 14 Greg Schroeder - - 4;.er 16 Construction Drawings 50 days Tue 8/6/02 Mon 10/14/02 15,13 Greg Schroeder Greg Schroeder 17 Bid Process 20 days Tue 10/15/02 Mon 11/11/02 16 Greg Schroeder,Richard Schafstal '''''''tGreg Schroeder,Richard 18 Construction Process 250 days Tue 11/12/02 Mon 10/27/03 17 Greg Schroeder,Bob Stine_ 19 Ci Open Plant 1 day Tue 10/28/03 Tue 10/28/03 18 Project: Sunlight Sewer Date: Mon 10/22/01 Task Split Summary OP� Rolled Up Split � � � � � 1 1 1 1 1 1 1 Rolled Up Milestone Project Summary I ... Progress Rolled Up Task Rolled UpProgress g Milestone External Tasks Page 1 Exhibit "I" Geology Name Pages Geologic Summary 2 Area Geology Map 1 Geologic Cross Section 1 GEOLOGY / HYDROLOGY OF SITE Sources of Geologic / Hydrologic Information The data for this section of the application was obtained primarily from two literature sources: Kirkham, Robert M., Streufert, Randall K., Hemborg, H. Thomas and Stelling, Peter L., 1996, Geologic Map of the Cattle Creek Quadrangle, Garfield County, Colorado: U.S.G.S. Open File Map 96-1. Olander, Harvey C., Lamm, Nancy B. and Florquist, Bruce A., 1974, Roaring Fork and Crystal Valleys, An Environmental and Engineering Geology Study, Eagle, Garfield, Gunnison and Pitkin Counties, Colorado: Colorado Geological Survey and Colorado Division of Planning, Environmental Geology No. 8. The plant site is just outside the area of the latter study, but geologic and hydrologic information from this study can reasonably be extrapolated to the plant site. Local Geolooy of the Site The geology of the site is shown on Figure 4. The site occurs on the border between two units, Qls- Quaternary Landslide Deposits and Qaco - Pleistocene Older Alluvium and Colluvium, undivided. Lying 100 - 200 feet downslope of the site is the Qac - Holocene Alluvium and Colluvium, undivided, which occurs in Fourmile Creek. Thickness of these units at the site is unknown, but Kirkham, et al, 1996 give the following thicknesses: Unit Common Thickness (Ft.). Maximum Thickness (Ft.l Qls None Given 200 Qac 5-20 40 Qaco None Given 40 The Upper Williams Fork Formation of the Upper Cretaceous Mesa Verde Group underlies the Quaternary deposits at the plant site. The unit is dipping at 40-45 degrees to the west southwest and forms part of the eastern limb of the Grand Hogback syncline. The Upper Williams Fork Formation is described by Kirkham, et al, 1996 as follows: "Includes lenticular sandstone, siltstone, shale, limestone, and thin coal beds of the Paonia Shale Member at base and overlying unnamed conglomeratic sandstone, siltstone, shale, and very lenticular, thin coal beds. May locally include the Ohio Creek Member" The cross section, Figure 5, taken from Kirkham, et al, 1996, passes within approximately 1000 feet of the site. It shows the attitudes and relative thicknesses of the surficial units as well as the deeper rock formations. Deep geologic information in the area has been enhanced by the TRW Sunlight Fed. #2 well which is located approximately 3700 feet northwest of the plant site and was drilled to a total depth of 5820 feet. Hydrogeology and Aquifer Characteristics No hard data about the hydrologic characteristics of the area immediately surrounding the plant site is available. However, the geologic units at the plant site consist of colluvial and alluvial deposits (Qls, Qac and Qaco). Both these types of deposits are unconsolidated. Colluvium is poorly sorted, sometimes poorly drained and can be quite variable in its hydrologic characteristics. Alluvium, on the other hand, tends to be better sorted and generally forms good aquifers with high porosities and permeabilities. The deeper, consolidated rock of the Upper Williams Fork Formation is a sedimentary rock and is classified by Olander, et al, 1974 as having interstitial porosity. They, speaking of all the Mesaverde and younger sedimentary bedrock units, conclude that: "Although there are no wells of record in this ground water province, partly because of the rugged terrain where these rocks occur, yields would probably vary between 0 and 50 gpm, and average 10 gpm. Depths of water production will vary according to the area, site geology and individual requirements. Most of this water would probably be considered non -tributary, especially if derived from depths greater than 300 feet." No additional data on the hydrologic and aquifer characteristics of the area surrounding the plant site is known to exist. L: 400's\401119981GealRepl.wpd Qbf .Q "Gbt `Qls ac TW Oac \\� rtes a� A• E.\_.; --‘---m) j \ j��� QI � s r —V �Tbg ;\ 20 fY ..: r V zrl \ 1 IN® = 2000 FRET Area Geology Image from U.S.G.S. Open Fle Map 96-1 1 ,Kmvu 01sr Sunlight Ski Area FIGURE Na. BRAWN BP DYE 0401 HN UN APPD DYI TAZtAcoMeMadre PINI Na CCS [ TS POST WEE Bal 0404 - 10011 C00PPR AMIE 4a001000 4PRNSIL MIDI= 0102 (]0.1) I411 -f' HOGBACK MONOCUNE 0 0 A 2 0 0 I04,i0Mo,01 n•S LO 00, ivOn ms melt GRANO HOGBACK SYNCLINE 0 ti i Section Modified from U.S.G.S. Open File Map 98-1 tn 0 Q) N L O� c N L% a 6� R A � TD Q) Y 0 j+ 7m Exhibit "J" Property Ownership Map Name Pages Property Ownership Map 1 (11"x17") AS, IS aaa.ar 41,0411-444011 r�),r• NSW INNS -- 1/1410-1-4/6 1/arlasi a[ —a s -a7 —0.- Intir [ OS a aaa) OJFe_ I Oaf -L lOS a Sall aF as a IS OBIS 117 Iar a/f as p11 aAaNF/I Minx A as -as a, M.a-4111a aaraase AY INS 21/4444141/1/ MOW SU — ISM SIR as INN .111•-__M flat 01111pp411.8 011411“as MOa1 --0.— ala N/1( alalOarlaL Ya NM —0-- Sf aN _t W MFM A.411.lpr Mr6 names sewat IP LFAMIN Si apr In p.m _MFM a INS al YLSEM I41 =AM Lr/LL aAM —I0. —alr• aa),fpa ~L% — aaa/par IS aaa\ -.Pa! SIala SON 84= a gaira— ala EnTs MIS NS Mr I� u N 8W" NMI/1 NM1/4NE//4 Mr" Iwo( RIVER HAMON4. FORES 5 8730 —12)4 N 89'J9 J3" r3 SMI INA /352.01 SM1/4NE1/4 S 87J4IJ LE /288.95 '" NI1/4SM FNTSON 1152. II NE//4NE1/4 N 8CJ9'JJ" M Itfl�a as a JOHN STIRLING AXES 81111, 111"..... SEI/4NE//4 P. •MS- irSWORD e FOR N CPO SEC JJ / ENO: BLOMOUIST DANS TRWILLO NMI/4SEl/4 / erp NE//4 1/4 INT Any .wawa / R N8TJfJ1"F / 230345' a aaa�r N 860)'43" /318.91' 132892 MORIN THOMPSON-ANN N/Li' .1/NERAL IVO LAND CORPORATION SMI/4SM1h RUM Jl AnIr RAS, 14A41M1/4SE1/4 c v N)J1 FT, I \ 8747.111'F 5I � rnv more COWCT /J/).94' 8742'19' 581/4581/4 1 8742'19" 1317.94 Y • LS 187/M p %/a y —. 1 SOWED STOW" II KN. IIC JJ dawnlownoW and•4 4r wwW owe - r nal � awl s, a n. n ss wYw nnWa r�+ess �� SGM SCHNOESER CORDON A/SISR SURI'SYORS NNC/NEBRS PROPERTY OWNERSHIP LAP 98/00 Orem ey SN DAM JAN ISM ey SStA'/ OF Exhibit "K" AeroMod Design Calculations Name Pages Design Calculations for 50,000gpd facility 6 AERO -MOD ACTIVATED SLUDGE DESIGN CALCULATIONS Project: Ski Sunlight Ski Area WWTP • Colorado Engineer: Zancanella & Associates Act. Sludge Process: Extended Aeration INFLUENT CONDITIONS Flow, MGD B005, mg/I 60D5, lbs/day TSS, mg/I TSS, lbs/day Ammonia•N, mg/I Ammonia -N, lbs/day BOD Rate. K BODL, mg/I SS, Inorganic, mg/I Date: 25 -Jul -96 Units: English PROJECTED EFFLUENT DESIGN PARAMETERS 0.050 Aeration Basin Ret. Time, hours 28.0 240 10 Aeration Tank Volume, Mgal 0.058 100 4 Sludge Age, days 23.0 240 15 Mixed Liquor Temp., Degrees C 10 100 6 Oxygen Transfer Rate, % 4.00% 25 1 Aeration Pressure, Inches of water 144 10 0.4 psi std 5.20 Aerobic Digester Digester Vol., % of Aeration Tank 20.0 0.10 Digester - Maximum MLSS, mg/I 15,000 351 Digester - Maximum MLSS, % 1.50% 48 PROJECTED OPERATING CONDITIONS - AERATION BASIN Mixed Liquor Suspended Solids, mg/I Mixed Liquor Volatile Suspended Solids, % FIM Ratio. lbs BOD511b MLVSS F/M Ratio, lbs BODS/Ib MLSS Organic Loading, lbs BODS/1000 cf of tank/day Oxygen Requirements (Carbonaceous), mg/1/hr Oxygen Requirements (Nitrogenous), mgNhr Aeration Required (Carbonaceous), scfm Aeration Required (Nitrogenous), scfm Aeration Required (Total), scfm Air Provided in Aeration Tank. cf/lb of BODS/day MLSS Wasted Per Day, lbs/day MLSS Wasted Per Day, gallons/day PROJECTED RESULTS—AEROBIC DIGESTER Sludge Storage Capacity, days (w/o VS Destruction) Volatile Solids Reduction in Digester, % Solids Wasted from Digester, lbs/day Volume Wasted from Digester, gallons/day Digester Sludge Age, days (w/ VS Destruction) Air Required for Stabilization, cfm Air Required for Mixing (@30 scfm/1000 cf), scfm 3,662 67.4 0.08 0.06 12.8 6.21 3.94 81 43 124 1,777 71 2,331 20 47.4 54 433 27 15 47 AERO -MOD AERATION DESIGN CALCULATIONS Protect: Ski Sunlight Ski Area WWTP . Colorado Date: 25 -Jul -9E Engineer. Zancanella & Associates Units: English Diffuser Type Used: Stainless Steel Coarse Bubble AERATION BASIN Flow, MGD 0.050 TSS, mg/1 240 BOD5, mgil 240 TSS, lbs/day 100 BODS, lbs/day 100 SS, Inorganic, mg/I 48 800 Rate, K 0.10 Ammonia -N, mgil 25 BODL, mg/I 351 Ammonia -N, lbs/day 10 Oxygen Required for BOD Reduction [MGD' mg/I' 8.34'1.2], lbs 02/day Oxygen Required for BOD Reduction, lbs 02/hr Oxygen Req'd for NH3-N Reduction [MGD * mgil ' 4.6'8.34], lbs 02/day Oxygen Required for Ammonia Reduction, lbs 02/hr Actual Oxygen Requirement (AOR), lbs 02/hr Where: AOR Actual Oxygen Requirement C'20 Steady State Value of 0.0. Saturation Alpha Assumed for Domestic Wastewater Theta Oxygen Transfer Coefficient T Temperature of Water, Degrees C Tau Oxygen Saturation Value [C•st/C's20] Beta Assumed for Domestic Wastewater Omega Omega [Pb/Ps] C Dissolved Oxygen Concentration Standard Oxygen Transfer Rate (SOTR), lbs O2/hr (AOR • C*20 / Alpha • Theta^(T-20) • (Tau' Omega • Seta • C•20 - C)] Oxygen Density (Amount of Oxygen per ft3 of Air), lbs 02/ft3 Transfer Efficiency for Selected Diffusers per Foot of Submergence, Diffuser Depth Below Water Surface Aeration Requirement [SOTR / Oxygen Density' SOTE], ft3 air/hr Projected Air Requirements, cfm OTHER AIR REQUIREMENTS Aerobic Digester Tank, scfm Selector Tank, scfm Clarifier, scfm Total Air Required, cfm Air Supplied, cfm Est. Operating HP Required for Aeration Basin, Clarifier & Selector tank Est Operating HP Req. for Digester Est. Total Operating Horsepower 120 5.0 48 2.0 7.0 7.0 9.2 0.70 1.024 20 1 0.95 1.000 2.0 47 10 12 200 200 7.4 2.2 9.6 13 0.01741 0.90 11 7,81 1: AERO -MOD CLARIFIER DESIGN CALCULATIONS Project: Ski Sunlight Ski Area WWTP - Colorado Engineer: Zancanella & Associates Clarifer Type Used: Split-ClarAtor FLOW CONDITIONS Design Flow, MGD Peaking Factor, hourly Duration, min Peaking Factor, sustained Aeration Tank Volume, Mgal MLSS, mg/I Avg. RAS Recycle Rate, % EQUIPMENT SIZING 8 SELECTION Number of Clarifiers Clarifier Unit Model Clarifier Unit Length, ft Clarifier Unit Width. ft Number of Units per Clarifier SURFACE OVERFLOW RATE 1 16128 16 8 1 Design Flow, gpd/sf Maximum Allowed Through Clarifier WEIR OVERFLOW RATE Design Flow, gpd/lin. ft Maximum Flow, gpd/lin. ft SOLIDS LOADING RATE Design Flow, lbs/day/sf Maximum Flow, lbs/day/sf RETENTION TIME Design Flow, hr Maximum Flow, hr PEAK FLOW HANDLING Peak Hourly Flow, MGD Max. Flow Through Clarifier, MGD Peak Flow, gal Max. Flow Through Clarifer, gal 0.200 0.102 8,333 4,267 Date: 25 -Jul -96 Units: English 0.050 4.0 60 2.5 0.058 3,882 100% Surface Area per Clarifier, sf Total Surface Area, sf Total Weir Length, ft Tank Wall Depth. ft Tank Water Depth, ft 391 800 1,724 3,531 23.9 38.4 5.7 2.8 128 128 29 14.0 12.5 Standards 1,000 10,000 50 In -Basin Storage, gal 2,493 Surge Tank Volume Required, gal 1,573 AERO -MOD TANKAGE DESIGN CALCULATIONS Project: Ski Sunlight Ski Area WWTP - Colorado Engineer: Zancaneila & Associates Tank Construction: Cast -in -Place Concrete SELECTOR TANK Number of Tanks Tank Wall Height, ft Tank Water Depth, ft Freeboard, ft 1 Tank Width, ft 14.0 Tank Length, ft 12.5 Total Volume, gallons 1.5 `Retention Time, hr AERATION TANK Volume Required, gat 58,333 Tank Wall Height, ft Tank Water Depth, ft Stage 1 Number of Tanks Tank Length, ft Tank Width, ft Area of Each Tank, sf Volume, gallons CLARIFIER TANK Number of Tanks Tank Wall Height, ft Tank Water Depth, ft AEROBIC DIGESTER TANK Number of Tanks Tank Wall Height, ft Tank Water Depth, ft SIDE LINE SURGE TANK Number of Tanks Tank Wall Height, ft Tank Water Depth, ft OVERALL TANKAGE DIMENSIONS Total Length, ft Total Width, ft Total Area, sf Total Wall Length, lin. ft *Note: Includes RAS 14.0 12.5 1 51.00 8.0 408 38,148 Number of Trains Number of Stages Stage 2 Number of Tanks Tank Length, ft Tank Width, ft Area of Each Tank, sf Volume, gallons Total volume provided, gal 1 Tank Width, ft 14.0 Tank Length, ft 12.5 Total Volume, gallons Volume Required, gal 11,667 Date: 25-Ju1-96 Units: English 1 Tank Width, ft 14.0 Tank Length, ft 12.5 Total Volume provided, gal Volume Required, gat 1,573 1 Tank Width, ft 14.0 Tank Length, ft 12.5 Total Volume provided, gal 64.00 19.00 1,216 256 Wall Thickness, in Floor Thickness, in Total Concrete, cy 1 28.00 8.0 224 20,944 59,092 5.0 8.0 3,740 0.9 1 2 8.0 16.0 11,968 12.00 10.00 11,220 4.0C 10.0C 3,74C 12.0 12.0 22f AERO -MOD EQUIPMENT AND SERVICES COST ESTIMATE Project: Ski Sunlight Ski Area WWTP - Colorado Engineer: Zancanella & Associates EQUIPMENT SUPPLIED Date: 25 -Jul -96 Units: English 1 Aero -Mod Split-ClarAtor Clarifier - 128 sf each 2 Aeration blowers, 10 HP positive displacement - 200 cfm each (Includes controls) 1 Split-ClarAtor control panel, Model SCC -100 10 Wall mounted aeration assembly, Model WA-50-PC-2SS - 12" Diffusers 1 Selector tank mixing assembly, Model WA-50-C-2SS 1 Solids Wasting Air Lift Pumps, Model AL -100 2 Digester tank aeration assembly, Model WA-50-PCA-2SS 1 Surge retum pump & controls 70 LF Of Aluminum framed walkways & handrail 1 Wall mounted Influent Bar Screen LS Installation materials, brackets, inserts, freight, misc. "TOTAL EQUIPMENT COST ESTIMATED INSTALLATION ESTIMATED CONCRETE TANK COST Concrete Volume, cy Installed Concrete Cost, 5Icy *TOTAL ESTIMATED COST 225 5400 'Buildings, site work, and auxiliary equipment are not included within this estimate. 5110,000 S14,000 590,000 5214,000 NOTE THE FOLLOWING: 1. No RAS pump station and associated electrical requirements are needed. 2. Yard piping is not required between the tankage. 3. All associated walkways & handrail for the plant are included In the above estimate. 4. Start-up of Aero -Mod Equipment is included in the equipment price. 5. The proposed plant includes the following tankage: One (1) Selector Tank Two (2) Aeration Tanks One (1) Aero -Mod Split-ClarAtor Clarifier One (1) Aerobic Digester One (1) Side Line Surge Tank REST -TECH SLUDGE DEWATERING & CONTAINMENT DESIGN CALCULATIONS Project: Ski Sunlight Ski Area VVWTP - Cotoraao Engineer: Zancanella & Associates Draimad Mode( Used: 68CAP SLUDGE CONDITIONS Volume of sludge per day (fully loaded), gallons Solids concentration of sludge, mg/ Solids concentration of sludge, % Solids to dewater, dry lbs/day Polymer requirement, lbs/1000 lbs dry sludge Polymer cost per pound Contained solids concentration @ 1 day, % Weight of dry solids per polyfilter, lbs Contained solids concentration @ 120 days, % Weight of polyfilter, mcisture, and solids @ 120 days, lbs Volume of Sludge per polyfilter ^a; 120 days, ft3 EQUIPMENT SIZING & SELECTION Number of Polyfilters per Unit Number of Units Used Total Number of Polyfilter Capacity Capacity of selected system, lbs dry solids/cycle Cycles per Operational Day Operational Days required/month DEWATERING COSTS Polymer requirement, lbs/month Polymer cost per month, 5 Polyfilters required per month, units Polyfilter cost per month, $ Electrical cost per month aQ $0.10/KWHr, $ Net sludge dewatering costs per month, $ Equivalent cost per dry ton of solids Equivalent cost per gallon of solids for dewatering Monthly Total Weight of bags to be disposed ((g 40%), lbs Landfill cost @ $50/ton Equivalent cost per gallon of solids for disposal Total Equivalent cost per gallon of solids BUDGET PRICE FOR EQUIPMENT INCLUDING START-UP • Polyfilters are sold in lots of 100 @ $220/lot. " Polymer is sold in 55 lb containers @ $250/container. Date: 25 -Jul -96 Units: English 8 80 $0.017 $0.008 $0.024 433 15,000 1.50% 64 5.0 $4.55 10.50% 20.3 40.00% 50.7 0.79 6 1 6 122 1 13 $265 4,082 $37 $176 $2 1215 $102 $28,000 Exhibit "L" Variance to Design Criteria for AeroMod Process Name Owner Signed Variance Request Pages 1 SCHMUESER • GORDON MEYER ENGINEERS S SURVEYORS GLENWOOD SPRINGS ASPEN CRESTED BUTTE 118 W. 6TH, SUITE 200 P.O. BOX 2 1 55 P.O. BO% 3088 GLENWOOD SPRINGS, CO B I60I ASPEN, CO 8161 2 CRESTED BUTTE. CO 81 224 970-945-1004 970-925-6727 970-349.5355 FX: 970-945-5948 FX: 970.925-4 1 57 Fx. 970-349-5358 MEMORANDUM TO: Colorado Department of Health and Environment (CDPHE) FROM: Greg Schroeder DATE: Monday, October 22, 2001 SUBJ: Sunlight Mountain Resort - Request for Variance for AeroMod Process The purpose of this memorandum is to request for a variance from the "Design Cetera rmaiderecl in the muewgC Wasteuate•tnnunrnt facilities" for an AeroMod wastewater treatment plant. It is our understanding that CDPHE requires a waiver from the owner for any process that does not meet state design criteria. Date: October 22, 2001 Signed by: cD Thomas C. Jank Title: Secretary, Sunlight Mountain Resort Best Regards, SchmueserGordon Meyer, Inc. Greg Schroeder, P.E. Cc: Enc. Documem69