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GARFIELD COUNTY BUILDING AND SANITATION DEPARTMENT Permit N~ "3&87 t l • ·-AHeHor's Parcel No. 109 8th Street Suite 303 Glenwood Springs, Colorado 81601 Phone (303) 945·8212 -----------· ., , Owner's Name I ' \t,J System Location l Legal Description of Assessor's Parcel No. i .SYSTEM DESIGN t,o-t-I)... 1 This does not constitute a building or use permit. I /'2 50 M 1 N Septic Tank Capacity (gallon) ------•Other I \--\:J. ) {) u-+-J --4 ,, r· r> -:-.. . I 1-.. + Percolation Rate (minutes/inch) Number of Bedrooms (or other) i.11 ~ \..""l~P'. µ11?. 1 14ul 2 0 -4ot ~ / I) o ""'1•1)u1 J.k<..£ 2 Required Absorption Area • See Attached 14c [) bD 1'-<fN f .0 Special Setback RequlrementS;:?S' 'F~•>I 'l>~ G...,_ c1'P ?i' v N<,c-ft.a c. r µ...4~ I Date/£)· :,-o I Inspector --J:tjl-''-'~..U•..ll ..... l!oLtH""'"'l--'!!.&""----------------- ;,;: l FINAL SYSTEM INSPECTION AND APPROVAL (as Installed) r I Call for Inspection (24 hours notice) Before Covering Installation I:. i ' System Installer h..c.. 14JJ...F4,UJ .. I !) ' ' ! J ! i. I ! : ! I I l i ~ I'' ~ ' ~ I Ii I, , j ' ' ' I I ' f .~ Stptlc Tank Capacity·------------------------------------- "' Septic Tank Manufacturer or Trade Name-------------~~----/-~,...---------- Septic Tank Access within 8" of surface _______ S~~·~"9.~-J.tr'l~L_ _ _'S~.l~~t.::__jik7#1Lj~tf.~· ::!Ht~~.p~~--- Absorption Area--------------------------------------- Absorption Area Type and/or Manufacturer or Trade Name ------------------------ Adequate compliance· with County and State regulations/requirements __ ,_,,__ ________________ _ Other--------------------------'---------------~ Date ___________ Inspector __,'2..._~_,_f_,1J"--·0=2,,,_ ________________ _ RFTAIN WITH RECEIPT RECORDS AT CONSTRUCTION SITE •CONDITIONS: 1. All installation must comply~lth all requirements of the Colorado State Board of Health Individual Sewage Disposal Systems Chapter 25, Article 10 C.R.$. 1973, Revised 1984. 2. This permit Is valid only for connection to structures which have fully complied with County zoning and building requirements. Con· nection to or use with any dwelling or structures not approved by the Building and Zoning office shall automatically be a violation or a requirement of the permit and cause for both legal lllictlon and revocation of the permit. 3. Any person who constructs, alters, or Installs an Individual sewage disposal system In a manner which Involves a knowing and material variation from the terms or specifications contained In the application of permit commits a Class I, Petty Offense ($500.00 flne-6 months In jail or both). White -APPLICANT Yellow -DEPARTMENT -~ -----~---------------------------------- ~ ~ ' " j l ' • " I I 1 l I I \ • • INDIVIDUAL SEWAGE DISPOSAL SYSTEM APPLICATION OWNER ___ T~o~N'-=--+~~M'-'-'-4~Y_,__ ____________________ _ ADDRESS 0 'l </$' 'Z--2--4 5 rLo A-D }JwG4s4/t. "71'11.ihJoNE t(J._q -0 IOC( ADDRESS PERMIT REQUEST FOR (~) NEW INSTALLATION ( ) ALTERATION ( )REPAIR Attach separate sheets or report showing entire area with respect to surrounding areas, topography of area, habitable building, location of potable water wells, soil percolation test holes, soil profiles in test holes (See page 4). LOCATION OF PROPOSED FACILITY: Near what City of Town lJ .L...._. ~l<-Size of Lot 4 · <b 'S ~c.. Legal Description or Address ---=le""-'t.___,1_'-__ ___,~c......:CZ.:.....1_~_~ ____ ('-J_.....,... __ c.._~ __ L_i: _ _,~:.....l....:Go::_i_7_,__ __ WASTES TYPE: ( IC.) DWELLING ( ) TRANSIENT USE ( ) COMMERCIAL OR INDUSTRIAL ( ) NON-DOMESTIC WASTES ( ) OTHER-DESCRIBE _______________ _ BUILDING OR SERVICE TYPE: _ _,(<_---'-"e..'-::.=-•-'d'-~"""11\--=<..~-=------------------ Number of Bedrooms _ __.. ____________ _ Number of Persons __ 2 ___ _ (P..) Garbage Grinder ( ) Automatic Washer ( ~) Dishwasher SQURCEANDTYPEOFWATERSUPPLY: ( ) WELL ( ) SPRING ( ) STREAMORCREEK If supplied by Community Water, give name of supplier: IJ t-"'-' C-4<; 1 L..<-W~ DISTANCE TO NEAREST COMMUNITY SEWER SYSTEM:_,_-._. _I "'-_f ________ _ Was an effort made to connect to the Community System? ___ f.J_o ____________ _ A site plan is required to be submitted that indicates the following MINIMUM distances: Leach Field to Well: 100 feet Septic Tank to Well: 50 feet Leach Field to Irrigation Ditches, Stream or Water Course: 50 feet Septic System to Property Lines: 10 feet YOUR INDIVIDUAL SEWAGE DISPOSAL SYSTEM PERMIT WILL NOT BE ISSUED WITHOUT A SITE PLAN. GROUND CONDITIONS: Depth to first Ground Water Table _______________________ _ Percent Ground Slope ___________________________ _ 2 - - - - - - - - - - - - - - - - - - - - - - - -------------------------------------------- Tl'Pi; OF INDIVIDUAL SEWAGE DISPOSAL SYSTEM PROPOSED: . ( ¥-) SEPTIC TANK ( ) AERATION PLANT ( ) VAULT ( ') VAULT PRIVY ( ) COMPOSTING TOILET ( ) RECYCLING, POT ABLE USE ( ) PIT PRIVY ( ) INCINERATION TOILET ( ) RECYCLING, OTHER USE ( ) CHEMICAL TOILET ( ) OTHER -DESCRIBE FINAL DISPOSAL BY: <+) ABSORPTION TRENCH, BED OR PIT ( ) EV APOTRANSPIRATION ( ) UNDERGROUND DISPERSAL ( ) SAND FILTER ( ) ABOVE GROUND DISPERSAL ( ) WASTEWATER POND ( ) OTHER -DESCRIBE WILL EFFLUENT BE DISCHARGED DIRECTLY INTO WATERS OF THE STATE? ______ _ PERCOLATION TEST RESULTS: (To be completed by Registered Professional Engineer, ifthe Engineer does the Percolation Test) Minutes ____ _,.er inch in hole No. 1 Minutes ______ ,per inch in hole NO. 3 Minutes er inch in hole No. 2 Minutes er inch in hole NO. Name, address and telephone ofRPE who made soil absorption tests: ______________ _ Name, address and telephone ofRPE responsible for design of the system: _____________ _ Applicant acknowledges that the completeness of the application is conditional upon such further mandatory and additional tests and reports as may be required by the local health department to be made and furnished by the applicant or by the local health department for purposed of the evaluation of the application; and the issuance of the pennit is subject to such terms and conditions as deemed necessary to insure compliance with rules and regulations made, information and reports submitted herewith and required to be submitted by the applicant are or will be represented to be true and correct to the best of my knowledge and belief and are designed to be relied on by the local department of health in evaluating the same for purposes of issuing the permit applied for herein. I further understand that any falsification or misrepresentation may result in the denial of the application or revocation of any permit granted based upon said application and in legal action for perjury as provided by law. Signed bL Date S-.-e L-. 2-4> 1 Z.. O o I PLEASE DRAW AN ACCURATE MAP TO YOUR PROPERTY!! 3 Designate North Arrow Your Neighbor's Name & Address I \ "'~ '-.... '-, __ .... ~ Your Plot -Shape to Fit (No Scale) ~-~~~~~~~~------- .... ~ ............... -~........_,, '. \\ )' ' '!::: ' 0. V ; o~ ' r ti."> _ ___./ ./ '::'-t~ / . ~1 t:? / r-! I '· ___ __....------ Ro~D -~ " "- l,<f"ICj0t.t"'on. i),,°fc,.\o\ \, ,,,.,,...------· --J ____ _ ···--·-·-.... -----·--"· -·------------- Locate well, all streams, irrigation ditchs, and any water courses. Draw in your house, septic tank & system, detached garages, and driveway. If a change of location is necessary, you must submit a corrected drawing, before a Certificate of Occupation will be issued. County Road (Note the Road Number and Name) Cov'(\"rf ;?o-At> 24S-, ~HI< G.u"'. elic c. twp;;i:i60\wpdoes"'3tJoc (3A) l. Your Neighbor's Name & Address • # • - May Residence 984-2290 418.2127 Cell c ~ ,. ill "' .!\ Buford Road .. \ :; '2 v ~l~ ~>: ¥ r8J N ~ V Castle Valley .. :; ~I New Castle ~ file://C:\Documents and Settings\tonymay\My Documents\bigcanoe.trn\Directions to lot 12.jpg Page 1 of I 9/20/2001 ---------------------------------------M~ ~ ~lrH.( fl_ SCHMUESER I GORDON I MEYER ENGINEERS fi. SURVEYORS GLENWOOD SPRINGS ASPEN I 18 W. 6TH, SUITE 200 P.O. BOX 2 I 55 GLENWOOD SPRlt...-GS, CO 8 160 I ASPEN, CO 8 161 2 CRESTED BUTTE P.O. BOX 3088 CRESTED BUTT!:, CO 8 I 224 970-945-I 004 970-925-6727 970·349-5355 October 12, 2001 Mr. Thad Greene 6181 Road 335 New Castle, Colorado 8164 7 RE: May Residence ISDS FX: 970-945-5948 FX: 970-925-4 I 57 Fx· 970-349-5358 Individual Sewage Disposal System Design 0723 Elk Run Road Lot 12, Three Elk Run New Castle, Colorado Dear Thad, Per your request, SGM has evaluated the design of the proposed septic system to service the effluent from the proposed May Residence to be located at 0723 Elk Run Road, New Castle, Colorado. This work is in response to the request made by the Garfield County Building and Planning Department during their initial percolation testing for the septic system design for this residence. As a result, we requested that additional soils evaluations be made to research more acceptable soils for the placement of the disposal field for this residenc. With this letter, you will find a number of attachments of which are described as follows: 1. A photocopy of the site plan prepared by Hepworth-Pawlak for their geotechnical work as modified to identify the schematic location of the field, tank and distribution lines. 2. A photocopy of the Soils Report prepared by Hepworth-Pawlak Geotechnical, Inc. for this site and building construction. 3. A photocopy of the percolation test data compiled from the percolation/soils testing performed on October 4, 2001. 4. Detail of a "Standard Infiltrator Chamber". 5. Manufacturer's literature for the installation of the disposal field using infiltrator units. 6. Code information for the proper installation of the other various components of the septic system. The remainder of this report describes the specific criteria for the construction of the septic system as designed. Please note that the following summarizes the tank and field sizing components of the system: 1. Septic Tank: 2. Field: 3. Distribution: 1,250 gallon, concrete or fiberglass Infiltrator trench construction, 73 units without 50% reduction and 37 units with 50% reduction. Use septic tank as distribution box for equal flow to trenches. . 6 SCHMUESER I GORDON I MEYER Page 2 DESIGN FLOW DISCUSSION For the proper design of the individual sewage disposal system, it is necessary to determine the anticipated design flows intended to utilize the system on a daily basis. Based upon our discussions, it appears that the residence is to be constructed as a four (4) bedroom home. Individual Sewage Disposal System Design Calculations Residential Flow Determination Date: 10/12/2001 Job Name: Job Number: May Residence ISDS 999 County: Garfield Number of Bedrooms: 4 Number of Persons per bedroom: Gallons per person per day: 75 bedrooms 2 persons per bedroom gpcd Average Dally Flow: (computed as #bedrooms x #persons/bedroom x ~ ADF= gallons per day Peak Dally Flow: !computed as 150% of Average Daily Flow! PDF= gallons per day Note that since the total flow from the site is less than 2000 gallons per day, the county will be able to process the permitting for the individual sewage disposal system. SEPTIC TANK SIZING Individual Sewage Disposal System Design Calculations Septic Tank Sizing Date: Job Name: Job Number: County: 10/12/2001 May Residence ISDS 999 Garfield Peak Daily Flow: (computed as 150% of Average Daily Flow! PDF= 900 gallons per day '6 SCHMUESER I GORDON I MEYER Page 3 Septic tank sizing needs to consider a thirty (30) hour detention time. Min. Volume: 1, 125 gallons (based upon PDF) Tank Volume: gallons (based upon availability) High Ground h20? (enter "yes" or "no", use lower case) Septic tank installation notes and selection criteria: Contractor may use either precast concrete, fiberglass or poly-tank installation. Tank to be a two compartment tank with 213 volume in first compartment and 113 volume in second. First tank compartment minimum size: 833.33 gallons Second tank compartment minimum size: 416.67 gallons If during excavation, high ground water is determined to be present or to have been present, contractor shall notify engineer of such conditions and/or anchor septic tank into ground to counter act bouyant effects on an empty tank. Setback criteria must be met in accordance to the "Table of minimum horizontal distances in feet between components of a sewage disposal system installed after November 15, 1973, and pertinent physical features." Use risers as needed to bring all septic tank access hatches within 6" of finish grade. Locate septic tank such that the access to the tanks can be accommodated for future pumping. Contractor and owner shall take whatever measures are necessary to assure that (a) the septic tank and sewerlines are completely water-tight to prevent infiltration of groundwater into the system, and {b) the system is installed to prevent freezing of the sewer lines. Frequent inspection of sludge levels in the tank{s) and compartments shall be conducted by the owner to assure that sludge, from the tank, does not enter into the down gradient disposal field or dosing tank, whichever is applicable. Once high levels of sludge are determined to exist, the sludge shall be immediately pumped and properly disposed of. PERCOLATION TESTING The soil profile hole excavated for the site did not encounter the presence of either bedrock nor ground water in existence within 8 feet of the surface nor four (4) feet of the proposed bottom of disposal field. Additionally, the percolation testing indicated a an percolation rate of 20.5 minutes per inch. Given the observations of the soil profile hole as well as the results of the percolation tests, a standard ISDS design can be performed using the guidelines outlined in the county's JSDS regulations. 'c:. v SCHMUESER I GORDON I MEYER Page4 DISPOSAL FIELD SIZING Individual Sewage Disposal System Design Calculations Disposal Field Sizing Date: Job Name: Job Number: County: 10/12/2001 May Residence ISDS 999 Garfield Peak Dally Flow: (computed as 150% of Average Daily Flow) PDF= 900 gallons per day Percolation Rate: 21 minutes per inch Absorption Area Required: Computed as AREA= ((PDF)xSQRT(t))/5 where: PDF= Peak daily flow t= percolation rate in minutes per inch SQRT= square root AREA= absorption area of field (in square feet) AREA= 814.98 square feet Is a washing machine proposed for the residence? Is a garbage disposal proposed for the residence? Areal adjustements to field sizing: For washing machine use: For garbage disposal use: 1.4 1.2 Final Absorption Area (after flow adjustments): Factor for washer: 1.40 Factor for disposal: 1.20 FINAL AREA= 1.369.17 square feet (enter "yes" or "no") (enter "yes" or "no") ' 6 SCHMUESER I GORDON I MEYER Page 5 Disposal field design information: Select the type of disposal field proposed by typing a "x" in the field to the right of the description: Description: Field Choice Infiltrators-bed Infiltrators-trench ~ Gravel bed Gravel trench Drywell INFILTRATOR DESIGN INFORMATION The absorption area for the disposal field will need to be 1,369.17 square feet considering the design flow (average daily flow times 1.5) and the 20.5 minute per inch percolation rate. As was previously mentioned, we have attached the manufacturer literature for the utilization of infiltrator chambers for the disposal field construction. Please note that if this product is used, the State Health Department as well as Garfield County recognizes a reduction of absorption area requirement by 30% for use of the infiltrators in a "bed configuration" and 50% for use of the infiltrators in a "trench configuration". Typically, site and setback constraints determine the most feasible configuration for the disposal field construction. However, it appears that neither of these constraints are applicable and that the configuration can be economically selected by yourself or your contractor. FIELD AREA= 1.369.17 square feet Areal reduction credit for INFILTRATOR use DISCLAIMER: For INFILTRATOR TRENCH CONSTRUCTION the Colorado Department of Public Health and Environment as well as local agencies may allow a 50% reduction in the absorption area determined on Sheet 5. However, in order for Schmueser Gordon Meyer to recognize such credit, S.G.M. requires full time, on-site inspection (by S.G.M.) of the construction of the entire system installation to assure that the components are properly installed to required tolerances. Accordingly, additional fees for on-site inspections will be charged over and above those fees incurred for design. The owner and/or contractor may elect to construct the system given the 50% area credit without SGM observation, however, in doing so, the owner/ contractor assumes full liability of substandard system performance and will hold SGM harmless of such substandard performance. Number of INFILTRATOR TRENCHES proposed: trenches . 6 SCHMUESER I GORDON I MEYER Page 6 Absorption area per trench: 456.39 square feet Standard INFILTRATOR chambers provide 18.75 square feet per chamber. Number of INFILTRATOR chambers required per trench: Total number of INFILTRATORS recommended by SGM in entire system: units per trench 24.3 units per trench and 3 trenches gives a total of: 73 STANDARD INFILTRATOR UNITS Using the 50% area reduction: Allowed reduced size of units In system= 37 STANDARD INFILTRATOR UNITS (SEE DISCLAIMER ABOVE IF 50% REDUCTION TAKEN) TABLE OF SETBACKS (FROM CDPHE) Seepage Pit or Silt Trench Absorption Trench, Seepage Bed, Sand Filter, or Subsurface Disoersal Svstem Unlined Sand Filter in Soil with a Percolation Rate Slower than 60 minutes oer inch Unlined or Partially Lined Evapotranspiration System, Wastewater Pond, or Surface Disposal System other than Aerosol Lined Sand Filters Table of Minimum Horizontal Distances in Feet Between Components of a Sewage Disposal System Springs, Wells, Suction Lines ... 100 ••• 100 100 100 60 Installed After November 15, 1973, and Pertinent Physical Features Potable Potable Dwellings, Property Subsoil Water Water Occupied Lines Drains Supply Line Supply Building Cistern 50 25 20 25 10 25 25 20 10 10 25 25 15 10 10 25 25 15 10 10 10 25 15 10 10 Lake, Water Course, lrrig. Ditch or Stream ... 50 ... 50 25 25 25 Dry Gulches ... 25 . .. 25 15 15 10 Septic Tank 6 6 10 10 5 . 6 SCHMUESER I GORDON I MEYER Page 7 Lined Evapotranspiration Field or Lined Wastewater Pond Pit Privy or Vault Privy or Vault Septic Tanks, Treatment Plants. Dosing Tanks, or Effluent Lines Building Sewer SUMMARY 60 10 25 15 10 10 50 10 25 15 10 10 .. .. 25 . .. .. 50 10 5 10 10 .. 10 25 0 0 .. 50 10 Note: The minimum distances shown above shall be maintained between the system components and the physical features described. Where soil, geological or other conditions warrant, greater distances may be required by the local board of health or by the Water Quality Control Commission pursuant to C.R.S. 1973, 25-8-206 in accordance with the authority prescribed by law and rules and regulations implemental of said section. For repair or upgrading of existing systems where the size of lot precludes adherance to these distances, repaired facility shall not be closer to water supply components than the existing facilities. 25 25 .. 50 . . 50 Based upon the information attached, it appears that the provision of the septic system on this site is feasible. Please note that as you further proceed towards system construction and need additional detail, we can be of further assistance to prepare specific plans for construction. However, an experienced installer of septic systems within Garfield County, whom is also knowledgeable with the county's ISDS regulations will be able to properly provide the construction of the system without further information. Assistance will also be given to you from the county's inspector upon submittal of an application for a "septic system permit" as well as through inspections during construction of the system itself. I appreciate you having given SGM the opportunity to be of service to you in this matter. If you have any questions or need further assistance, please don't hesitate to call. Respectfully Submitted: L:\jss\may.doc 10 5 10 ---. . --- 10 .. --- 10 , 10/12/01 10:06 '8'970 984 3533 LOT 13 LOT 14 101 601 I 730 710 j. 670y/ 660 65 750 ....__ HEPWORTH-PAWLAK GEOTECHNICAL, INC. TRUSFAB INC. 770 ---·--~yo~-· APPROXIMATE SCALE ,. = 120' 750 f\lon::..~ f L.Aa:. So-rrziM. LJr= Tl2~s A-r (..'~a" f3E.t..aw 6~...JD 6.AU-ACE.. ~~ M IA':::>r z.e. /...e..iEL ( LOCATION OF EXPLORATORY PITS Fig. 1 13/12101 10:03 'Zt970 984 3533 -· 1-4p Ge<!> tech September 1; 2001 Tony May 0982 Road 245 New Castle, Colorado 81647 TRUSFAB INC. Hepworth-Pawlak Geotechnlcal, Inc. 5020 County Road 154 Glenwood Springs, Colorado 81601 Phone: 970-945-7988 Fax: 970·945-8454 hpgeo@bpgeotech.com Job No. 101 601 Subject: Subsoil Study for Foundation Design, Proposed Residence, Lot 12, Three Elk Run, 245 Road, New Castle, Colorado. Dear Mr. May: As requested, Hepworth-Pawlak Geotechnical, Inc. performed a subsoil study for design of foundations at the subject site. The study was conducted in accordance with our agreement for geotechnical engineering services to you dated August 23, 2001. The data obtained and our recommendations based on the proposed construction and subsurface conditions encountered are presented in this report. Proposed Construction: The proposed residence will be a single story wood frame structure over a walkout basement level located on the site as shown on Fig. I. An attached three car garage will be at the main level. The garage and basement floors will be slab-on-grade. Cut depths are expected to range between about 3 to 12 feet. Foundation loadings for this type of construction are assumed to be relatively light and typical of the proposed type of construction. If building conditions or foundation loadings are significantly different from those described above, we should be notified to re-evaluate the recommendations presented in this report. Site Conditions: The site was vacant at the time of our field work. The vegetation had been stripped from the building area. The building area is located on a southwest trending ridge. Drainages are located to the northwest and southeast of the building location. The ground surface in the building area slopes strongly down to the southwest at grades up to about 15%. There is about 10 to 12 feet of elevation difference in the building area. Vegetation in the surrounding area consists ofpinon and cedar trees, sparse grass and weeds. Scattered siltstone/sandstone cobbles and boulders are exposed on the ground surface. Subsurface Conditions: The subsurface conditions at the site were evaluated by excavating two exploratory pits at the approximate locations shown on Fig. 1. The logs of the pits are presented on Fig. 2. The subsoils encountered, below about 1h foot of topsoil, consist of medium dense to dense, clayey sand and gravel with scattered cobbles and small boulders. Weathered siltstonelclaystone bedrock was encountered @002 10/12/01 10:04 'll'970 984 3533 TRUSFAB INC. I ' • Tony May September 7, 20Cll Page2 . beneath the sand and gravel at depths of 21h and 81h feet. Results of swell- consolidation testing performed on a relatively undisturbed samples of the weathered claystone bedrock, presented on Fig. 3, indicate low compressibility under existing moisture conditions and light loading and a low expansion potential when wetted. Results of a gradation analysis performed on a sample of clayey gravel (minus S inch fraction) obtained from the site are presented on Fig. 4. Atterberg limits testing indicates the clay matrix soils have low plasticity. No free water was observed in the pits at the time of excavation and the soils and bedrock materials were slightly moist. Foundation Recommendations: Considering the subsoil conditions encountered in the exploratory pits and the nature of the proposed construction, we recommend spread footings placed on the undisturbed natural soil or bedrock materials designed for an allowable bearing pressure of 3 ,000 psf for support of the proposed residence. The weathered bedrock materials appear to have an expansion potential when wetted and there could be some post-construction foµOOation movement if the bearing soils become wet. The expansion potential of the subgrade should be evaluated at the time of construction. Footings should be a minimum width of 16 inches for continuous walls and 2 feet for columns. Loose and disturbed soils encountered at the foundation bearing level within the excavation should be removed and the footing bearing level extended down to the undisturbed natural soils. Exterior footings should be provided with adequate cover above their bearing elevations for frost protection. Placement of footings at least 36 inches below the exterior grade is typically used in this area. Continuous foundation walls should be reinforced top and bottom to span local anomalies such as by assuming an unsupported length of at least 12 feet. Foundation walls acting as retaining structures should be designed to resist a lateral earth pressure based on an equivalent fluid unit weight of at least SS pcf for the on-site soil as backfill. Floor Slabs: The natural on-site soils and bedrock materials, exclusive of topsoil, are suitable to support lightly loaded slab-on-grade construction. The weathered bedrock appears to have an expansion potential which should be evaluated at the time of construction. To reduce the effects of some differential movement, floor slabs should be separated from all bearing walls and columns with expansion joints which allow unrestrained vertical movement. Floor slab control joints should be used to reduce damage due to shrinkage cracking. The requirements for joint spacing and slab reinforcement should be established by the designer based on experience and the intended slab use. A minimum 4 inch layer of free-draining gravel should be placed beneath basement level slabs to facilitate drainage. This material should consist of minus 2 inch aggregate with less than 50 % passing the No. 4 sieve and less than 2 % passing the No. 200 sieve. · · All fill materials for support of floor slabs should be compacted to at least 95 % of maximum standard Proctor density at a moisture content near optimum. Required fill can consist of the on-site soils devoid of vegetation, topsoil and oversized rock. H-P GEOTECH la! 003 10/12101 10:05 'L\'970 964 3533 TRU~FAB INC. J l I • Tony May September 7, 2001 Page 3 Underdrain System: Although free water was not encountered during our exploration, it has been our experience in the area and where bedrock is shallow that local perched groundwater can develop during times of heavy precipitation or seasonal runoff. Frozen ground during spring runoff can create a perched condition. We recommend below-grade construction, such as retaining walls and basement areas, be protected from wetting and hydrostatic pressure buildup by an underdrain system. The drains should consist of drainpipe placed in the bottom of the wall backfill surrounded above the invert level with free-draining granular material. The drain should be placed at each level of excavation and at least 1 foot below lowest adjacent finish grade and sloped at a mjnlmllJll l % to a suitable .gravity outlet. Free-draining granular material used In the underdrain system should contain less than 2 % passing the No. 200 sieve, less than 50% passing the No. 4 sieve and have a maximum size of 2 inches. The drain gravel backfill should be at least 1 V:i feet deep. An impervious membrane such as 20 mil PVC should be placed beneath the drain gravel in a trough shape and attached to the foundation wall with mastic to prevent wetting of the bearing soils. Surface Drainage: The following drainage precautions should be observed during construction and maintained at all times after the residence has been completed: 1) Inundation of the foundation excavations and underslab areas should be avoided during construction. Drying could increase the expansion potential of the weathered bedrock materials. 2) Exterior backfill should be adjusted to near optimum moisture and compacted to at least 95 % of the maximum standard Proctor density in pavement and slab areas and to at least 90% of the maximum standard Proctor density in landscape areas. Free-draining wall backfill should be capped with about 2 feet of the on-site, finer graded soils to reduce · surface water infiltration. 3) The ground surface surrounding the exterior of the building should be sloped to drain away from the foundation in all ditections. We recommend a minimum slope of 12 inches in the first 10 feet in unpaved area8 and a minimum slope of 3 inches in the first 10 feet in pavement and walkway areas. A swale will be needed uphill to ditect surface runoff around the residence. 4) Roof downspouts and drains should discharge well beyond the limits of all backfill. 5) Landscaping which requires regular heavy irrigation, such as sod, should be located at least 10 feet from the building. Consideration should be given to the use of xeriscape to limit potential wetting of soils below the foundation caused by irrigation. H-P GEOTECH iai 004 10/12/01 10:06 '5'970 984 3533 TRUSFAB INC. I t) • •• Tony May September 7, 2001 Page4 Limitations: This study has been conducted in accordance with generally accepted geotechnical engineering principles and practices in this area at this time. We make no warranty either expressed or implied. The conclusions and recommendations submitted in this report are based upon the data obtained from the exploratory pits excavated ·at the locations indicated on Fig. l and to the depths shown on Fig. 2, the proposed type of construction, and our experience in the area. Our findings include interpolation and extrapolation of the subsurface conditions identified at the exploratory pits and variations in the subsurface conditions may not become evident until excavation is performed. If conditions encountered during construction appear different from those described in this report, we should be notified at once so re-evaluation of the recommendations may be made. This report has been prepared for the exC!usive use by our client for design purposes. We are not responsible for technical interpretations by others of our information. As the project evolves, we should provide continued consultation and field services during construction to review and monitor the implementation of our recommendations, and to verify that the recommendations have been appropriately interpreted. Significant design changes may require additional analysis or modifications to the recommendations presented herein. We recommend on-site observation of excavations and foundation bearing strata and testing of structural fill by a representative of the geotechnical engineer. If you have any questions or if we may be of further assistance, please let us know. Sincerely, Reviewed by: JZA/'aw attachments .. --. -. Jal005 10112101 10:06 '5'970 984 3533 " . LOT 13 LOT 14 101 601 740 I 730 880 HEPWORTH-PAWLAK GEOTECHNICAL, INC. TRUSFAB INC. la! 006 ----. ---. ~·--- 770 APPROXIMATE SCALE 1· -120· 760 750 710 PROPERTY B UNDARY LOCA llON OF EXPLORATORY PITS Fig. 1 10/12101 10:07 '8'970 984 3533 TRUSFAB INC. laJ 007 --------= " . 0 5 10 LEGEND: PIT 1 ELEV.=745' I I I I __ , wc-6.1 +4e51 -2oo..25 LL-31 Pl=15 PIT 2 ELEV.= 733' 0 5 10 TOPSOIL; sandy s//t with grovel and scattered cobbles, highly or9anlc, soft, slightly moist, dark brown. GRAllEL (GC); cla)llly, sandy, with scattered cobbles and small boulders, medium denae to dense, slightly moist, brown, angular fragments of aHtstone/cla)l9tone. WEAlHERED StLTSTONE/CLAYSTONE; weathered and medium hard, slightly moist, llght gray, aha/e. 2• Diameter hand driven /Iner sample. Disturbed bulk sample. NOlES: 1. Exp/oratory pita were excavated on August 27, 2001 with a Cose SBOE backhoe. 2. Locations of exploratory pits were measured approximately by paolng from features on the site plan provided. · 3. Elevations of the exp/oratory pits were obtained by Interpolation between contours on the sJte plan provided and checked by hand level. logs are drawn to depth. 4. The exploratory pit locatlons ond elevations should be considered accurate only to the degree Implied by the method used. 5. The /Ines between matorlale shown on the exploratory pit logs represent the approximate baundarlea between material types and transitions may be gradual. 6. No free water waa encountered In the pits at the time of excavating. Fluctuations In water level -may occur with tlm e. 7. Laboratory Teatlng Reaulta: WC = Water Content ( llC ) DD ~ Dry Density ( pcf ) +4 "' Percent retained on No. 4 sieve 101 601 HEPWORTH-PAWLAK GEOTECHNICAL, INC. -200 = Percent paHlng No. 200 sieve LL -Liquid Umlt ( llC ) Pl = Plastlclty Index ( :ii: ) LOGS OF EXPLORATORY PITS Fig. 2 10/12/01 10:07 '8'970 984 3533 TRUSFAB INC. -~0-~ - Moisture Content a 6.9 perc11nl . Dry Density -120 pcf Sample af: W11athered Clayatane 2 Fram: Pit 2 at 6 Feet tc: ~ .. 1 c " ~ 0.. i!l I 0 c '\ " .II • ~ 1 ' Expansion ['. D § upan 2 wetting 0.1 1.0 10 100 APPLIED PRESSURE -kef 101 601 HEPWORTH-PAWLAK SWELL CONSOLIDATION TEST RESULTS Fig. 3 GEOTECHNICAL, INC. 10112101 10:08 '5'970 984 3533 TRUSFAB INC. I I • • • --U.S. ITANDMD ... ......... _ I I CUM_......,;; ..... , .. D41._ 1Slltl. ..... 1 ..... 4WIL ,..._ .-..._ ,. •,. •I • • >tr >/<" 1 •tr :r rl" r 100 •• .. .. .. .. .. .. .. ... DIAMElER OF PARTICLES IN MILLIMETERS I • I w ¥aw I cm.a Cl.AY 1V 111..T NE Ii jMiW GRAVEL 51 " SAND 24 " SILT AND CLAY 25 ::C: LIQUID LIMIT 31 ::C: SAMPLE OF: Sandy Clayey Gravel with Cabblas PLASTICllY INDEX 15 " FROM: Pit 1 at B to 8.5 Feat .. .. .. .. ... .. .. • • • ~009 101 601 HEPWORTH-PAWLAK GEOTECHNICAL, INC. GRADATION TEST RESULTS Fig. 4 SAMPl.E LOCATION NATURAi. NA"llJRAl m DEPni MOISTUIE DAV ·-CCNTENT CENSITY , .. , r,ctl " 1 6-8% 6.1 2 6 6.9 120 HEPWORTH-PAWLAK GEOTECHNICAL. 1Nc. TABLE I SUMMARY OF LABORATORY TEST RESULTS GllAOATlON -ATTER8ERO LMTS UNCONFINED GRAVEL SAND PASSING UQUID IUST1C COMl'RESSM , ... , , ... , NO. 200 UMIT INDEX ,,,_GTH SIEVE ,,., ~J ll'SFI 51 24 25 31 15 . JOB NO. 101 601 SOR.OR IEllflOCll TYPE sandy clayey gravel with cobbles . weathered claystone ~ ~ 0 .... ~ "' .... 0 ~ ~ 0 0 00 Cl "' " 0 "' 00 ... '"' "' '"' '"' ~ "' I~ I~ 1§1 ,~ , 101ovo1 1J:54 I I I .l TRUSFAB INC. 11205 • /5DS .. ; ---rQ 1 -:r W. 511~1 . · :Sat"! ~ -,1-'14#:?:!..'I.§. __ . j . J.-fiz,ofl'.I :. "17/ltp W. (i(l.£f:"rJC -·--·--... 1 ' ~· &.tf;I 7Z:D 335 -·----------·" I: ' " ___ __.!{~ t.M>~ C.O.:._IJ!._~_</'{.__, __ -·--.. -IL '"PH.. (97-0) .'J.J~t.?.1.~k..--~--'--t!'!:-2?..~~-·---· - - @001 j j j j I j I I " __ Jr=:::::: . -E:~ ==== THE STANDARD INFILTRATOR"' CHAlvlBER No Scale T i" J_ !-1.cxr-I 1-6.33"-] -I 1s·----------i i---------:w. , 12s· \ st AN DARO HIGH CAPACllY $PECIFICATIONS INFlllRAlOr INFILTRATOR" SIZE 3'x 61/iX 1' 3' x 6 1/ix 1113• WEIGHT 25 lbS. 301bs. STORAGE 10.311' (77 golJ 16.3 ft' (122 gal.) • ' " 'IT'S TIME TO roME OUT OF THE ~TONE AGE! THE • 1.1~I;Ilij1 iB l•J iT - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --------------- GRAVEL AND PIPE 4" Perforated Pipe. University studies prove thot It does not give even distribution Infiltrative surface with blomat formation Compaction from gra.91 emplacement • reduced Infiltration rate PROBLEMS WITH GRAVEL: • Reduces Infiltration rate 50% to 60% according to experts • Handling and waste • Site damage •Cost Native Soil ·--Backfill Urvnosked effective lnfillralive surface Solids build up In Masked zone • limited lnfollrallo-n-+-1---0-1 spaces between grovel. Rmlttng lnftlttatlon Blomot;--\'f:;..;;.:,"::-"'F.'-~ Water disperses beneath stones THERE IS A BETTER WAY ... THE INFILTRATOR' .. lntllfrattve sll'face DESIGNED TO SOLVE PROBLEMS INRLTRATOR'" Units Available In Standard or High Capacity Storc;>ge VOil.me mori:I than 2 times grecrler than a gravel trench of ~ual size Side wall designed to minimize masking -i---r effect Entire bottom of trench provides perfect unmasked Infiltrative surface SPECIFICATIONS SIZE WEIGHT STORAGE STANDARD INFILTRATOR" 3' x 6 11• x 1' 2Slbs. 10.3 It' (77 gol.) HIGH CAPACITY INFILTRATOR" 3'x 6'1• x 11/3' 301bs. 16.3 H' (122 gal.) Mlcr~eochlng Chambers™ (No need for geotextlles) Protective rib prevents soil backfill Intrusion and creates voids for optimal blomat formation. v.' wide open slots provide open area equal to porosHy of sides of gravel trench. Ribs • creole additional voids for blomol formation. • • • High·Copocl~ INFILTRATOR Chamber Documented research has clea~y dem- onstrated that the INFILmATOR'" chamber provides an optimum Infiltrative surface for leaching systems. Many states have already recognized this and granted system size re- ductions accordingly. • Standard INFILTRATORW Chamber Pipe and Grovel 4 If.• UNMASKED INFILTRATIVE AREA ft 2 /llnear ft. The graph shows that INFILTRATORS"' have twice the effective Infiltrative surface area per linear foot. This Is based on a 36" wide trench with 6" of gravel below the pipe, assuming 50% gravel masking, compared to Standard and High Capacity INFILTRATORS"' with 50% masking for INFILmATOR'" sidewall, and no bottom masking. INSTALLATION WAS NEVER EASIER! 1. Excavate 3' wide trenches and prepare Infiltrative surface. 2. Screw the end plates In place and slip INFILTRATOR"' units together to form desired trench length. 3. Run Inlet pipe thru inlet end plate (pipe does not extend the entire length of the system). and backfill with native mate~al (18" depth for H-20 and 12" for H-10} (Detailed Instructions available.) ALTERNATIVE INSTALLATIONS INFILTRATOR™ CHAMBERS ARE GREAT FOR MOUNDS AND PRESSURE DISTRIBUTION TOOi MOUNDS INFILTRATORS'" can easily replace the gravel In mound or fill systems, In either a trench or bed configuration. Installation Is much easier with no damage to the Infiltrative surface. The site preparation, design and construction of the mound system Is prescribed by state code. and INFILmATOR • SYSTEMS' Installation instructions. PRESSURE DISTRIBUTION INFILTRATOR'" chambers are easlly adapted to pressure dls~butlon. Simply suspend a predrilled pressure pipe In the top of the units with simple, foolproof plastic pipe hangers. Supplemental Installation Instructions are available for complete details. · 11w~~•t:.;aw1l1&1 INFILTRATOR'" chambers ore molded from a high density poly- ethelene and ore impervious to all components of wastewater. They hove been structurally tested by a Registered Professional Engineer and ore available with on AASHTO roting of H-10 (16.000 lbs./ axle with 12" of compacted cover) or H-20 (32.000 lbs./ axle with 18" of cover). THE INFILTRATOR™ SYSTEM HAS ADVANTAGES FOR EVERYONE • A high performance. state of the art system. • Double the unmasked soil interface area compared to grovel systems. • Complete system delivered in one pickup truck. • Fast & easy installation. • Reduced labor & machine costs. • Eliminates compaction. shadow effect and mess caused from grovel. • Easy inspection. • Structurally strong. H-10 and H-20 load ratings. • Approved by U.S. Deportment of Housing and Urban Development -Federal Housing Authority. • Complete technical bock-up information is available. ' STORMWATER MANAGEMENT- THE INFILTRATOR"' ADVANTAGE The INFILTRATOR'" is a complete systems approach to stormwoter management that gives the engineer tremendous design free- dom to meetthe needs of the individual site. The engineer con use units combined with stone for shallow or deep systems that meet any requirement for storage and treatment. require no heavy equipment except a backhoe for installation. and ore highly cost effective. A detailed stormwoter brochure is available upon request. If vou have special problems or questions call INFILTRATOR SYSTEMS or your local dlslrlbulor. • \ LIMITED WARRANfY (o) TtlEt structurol ll'ltegrity of eoch INFttmATOO'" unit. ~ ll'lltOlled in oc· corOOnCe '*'lh morufOc"-"'Elll"t -1SlruCllOr\$. rs WOtTOOled to tr-. cngino1 purchaser OQO•nsl delectlll9 motenob ond ¥0'o:monship '°' one Y80f from dote ol manufacture Should o oe1ec:1 OPPOOf within tt-e "'°nonrv petlod. putehosermust tnlonn lnllltrotOf Svstems Inc ol the delect within fifteen (15) c1oys lnllltrotor Systems ..... u llJClPIY o iep1ocemen1 unit lnfll. trotOf ~tems" liObilitv sooclfcoiivecludes the cost of ten"lCl'oOI ond/OI' ........ instollchon ol the units ·, W (b) THE WAARIWN IN SUBPARAGAAPH(o)IS EXCLUSM THERE AA£ NOOlHER WAARANTES 'MTH RESPECT TO '!HE \)./ITS. KU.ONG NOWAARANTtSOF ~"81UfVOQ()f FITNESS FOR APAROCUl.AR PURPOSE H WAA· RANTY DOES OOT EXTEND TO IN:IOENTAL.CONSEQlEM\AL. SPECW. 00 INDIRECT DAMAGES lHE COMPANY SHALL NOT BE UA8l.E ~ PENAlTtS 00 llQUIDAJED DAMAGES. NCllOf'G LOSS OF PROOUCTION NC PIK). RTS. lABC>I? ANO MATUMJ..S. o.fRl-EAO COSTS. 00 011-EQ LOSS OQ EX- PENSE l~RED BY BUVER SPECIFK:Al.lV EXCLUDED FROM WAARANIY CO'vtQAGE ARE· DAMAGE lO THE UNITS OU: TO ORDINARY~ ANO TEAA. ALlERAOClN . .ACOOENT. MISUSE, A9JSe OR ~T OF lHE UNITS. THE LNlS BBNG Sl.Ja£CTEO TO STRESSES GREATER 1HNI 1HOSE PRES- CRIBED IN JHE INSlAl.lATION INSmlJCTIONS. THE PLACEMENT 8V 81..MROF IMPROPER MAJEl"Ml.S MO E!U'ltD'S SYSTEM: OR N./V OTHER EVENT NOT CAUSED BV lME COtJtPf4N'( RJRJHE~. N NO EVENT SHAU 1HE CQ.!rfW.N BE RESPONSIBLE FO'? NN LOSS OR DAMAGE TO THE fl/YER THE UNITS OR N./V lHIRO PAATV RE SU.TING FROM ITS INSTAU.AllC>N OR SHIPMENT 81..M:R SHAU. IE SOlElV RESPONSIBlE FOR E~l\G THAT INSlAl.lATION Of THE S't'STEM IS COM· P\.flEO N ACCOOOANCE Y.llTH AU APPt.ICABl.E LAWS. CODES. RLUS .,.., REGltAllONS (c) NO REPl?ESENTATM OF THE COH'ANV HAS JHE AU1HOl?ITV lO ~E THIS WAAfUWrv tN !>NV f.M.NNER 'M--CAISOE\IER. OQ TO EXTEND THIS WAA· RANTV NO WAARANTY Af'P!J(:S TO A.NV PAATV OHR THAN TO THE """"""' ""'" Distributed by • 123 Elm Street• Suite 12 •Old Saybrook, CT 06475 • 203 • 388 • 6639 • 800 • 221•4436 • FAX 203 • 388 • 6810 PAT0 NOS.4759661, 5017041and5156488 Canadian and other patents pending. © 1993 lnftltrator Syslems Inc. ISi 10193 INRLmATOR-and MICllO-LEACHING CHAMBEllS-are trademarlcs of Infiltrator Systems Inc .. ' _.)3 J it!J1'?ii3~1 I~ ~i fj ~Uit·)~ 11~ ~i l:{II!l it·)~~-- D Excavate and level 3 · wide trenches. EJ Prepare trench bottom and sides in accordance with state and local regulations. (Infiltrator Systems recommends raking sidewall and t:x>ttom infiltrative surtoces to eliminate smearing.) H Screw splash plate on bottom of open end plate. a Screw open end plate into inlet end (without interlocks) of first INALffiATOR'" chamber with splash plate extending into unit. 1£1 Place first unit In the inlet end of trench with Interlocks downstream [J Run distribution pipe through inlet opening in end plate but not beyond splash plate. Single screw may be used to hold in place. Pipe does not normolty run the length of system. D Slip INFILffiATORW units together. fully en- gaging interlocks to form desired trench length. o. To keep jOints from coming apart during construction and for maximum strength -jOints may be screwed together with 4 self drilling screws. b. Trench grade con be checked with a level or surveying equipment. JNFJLTR.AJO.rf• Js o •rodemork of Jnflllroror Systems, Inc. (] Screw closed end plate in downstream end of last unit to hold in place. NO!t: For serial distribution. or to loop the trenches together. use on open end plate at the down- stream end of the trench. and run a pipe from the opening to the next trench l:J Fill side wall area to top of slots with native soil. 'Wolk" fill into place to give pioper support of sicles. THIS IS VERY IMPORTANT TO ACHIEVE FULL STRENGTH. rn Backfill to 0 minimum of 12" of cover ofter compaction and settling for H-10 units and 18" for H-20 units. Avoid large rocks in the backfill ma- terial. CAUTION: Avoid vehicle traffic on system during construction since soil hos not settled. This is particularly Important in sand. since loose sand offers very little structural support. Most states advise avoiding vehicle traffic to pievent compaction of the Infil- trative surface. (After pioper depth of cover is compacted and settled, INFILffiATOR'" leaching chambers will then support vehicle weight not to exceed 16.000 lbs. per axle for H-10 units and 32.000 lbs. per axle for H-20 units.) n Excavate ono level des11ed beo area Rake soil surtace to chm1nale smearing Follow steps 3 through 8 on tho other side El Place rows ol INFILTRATOR'· chambers nex1 to eoch other to achieve desired bed area H Fill side wall area around perimeter and bef'ween rows of units with native material up to the top of slots and "walk" in place to give proper support to sides. [) Backfill to a minimum of 12" of compccted. settled cover far H-10 units ond 18" far H-20 units. Avoid large rocks in bockWI material. Far a large bed that cannot be filled from the sides. use a light tracked vehicle and be sure to maintain the proper minimum of compccted cover beneath tracks at all times DO NOT USE WHEELED VEHICLES ON THE BED DURING CONSTRUCTION. UM1no WARRANTY o_ The 1truc:f\.l'ol 1nteontv Of eoch 1NF1LmATOO'-urwt. """8n 1n1t011eO 1n occordonce with monutocfU'e<s 1nstnJchOl'\s is "'°"ontea 10 the ong1not p..1rch0ser o;>orut delecflw mo1eno1s ano v.cncmon5"1P '°' one year from 001e Of monutocture Shoula a defect oppeor Within the "'°"anrv pen()CI, PJfChOS81' rn.JSI intoon Infiltrator $'(Siems. Inc Of the detect within titteen (15)~ 1nfittrat0' SV$1ems will suppry o replacement urw1 lnfillrOIO' SV$1erns· habibty 1PeC1fico11v excludes the cost Of remcwoi ono/O' installation Of the units b. Tt-E WAARANTV IN SUBPAAAGR.APH (0) IS EXCLUSM THEl?E ARE NO Oil-ER WARRANTIES Yi11TH RESPECT TO THE UNITS INCLUOING NO WAARANnES Of MEl?Cl-W-llABILITV 00 ~ FITl'ESS FOR A PAATICULAA PIJ?PQSE Tl-IE WARRANTY DC:>ES NOT EXlENO TO INCIDENTAL CONSEQuENTIAL SPECIAL 00 INDIRECT DAMAGES THE CCNl'AN'f SHAl..l NOT BE LIA81.E FOR PEW\l.TIES 00 LIOUOAl"EO DAMAGES. INCLUOll\IG LOSS ~ PROOUCnoN ANO Pt"K)ATS. LABOR ANO MATERIALS. ~!?HEAD COSTS. 00 OTHER LOSS 00 EXPENSE 11'CU11?E08V 81.MR SPECIFICAU.VEXClUOEOfRCIM WARRmTV CO~RAGE ARE DAMAGE 10 h-E UNITS DUE TO ORDINAAYwt.AA AND lE.AA. AIJERAAON. ACCIDENT. MISUSE. ABUSE 00 NEGLECT OF THE UNITS. THE ~ITSBEll~ SUB..ECl'ED TO smESSESGREAl'ER THAN THOSE PQESCl?IBEO IN THE INSTALWION INSTl?LCTIONS· Ti-E A.ACEMENT BY BUYER OF llW'ROPER MATERIALS INTO &.N'ER"S SYSTEM. 00 IWV On--4ER MNT NOT CAUSED av THE C°""PNN FIJr?THERMORE. tN NO EVfNI SHAU THE COt.APANY, BE QESPONSIBLE FOR />NV LOSS OR DAMAGE 10 THE BUVER THE UNITS 00 IWV IH1f?{) PAATV l"l'ESULTING Fl"lQ\.1 llS INStAllAOC>N 01 SHIPJ-.AENT BUYER SHALL BE SOl£lV l"lEsPONSIBU fOR ENSURING !"HAI INSTALLAl"ION OF- IHE SYSTEM IS COMPlfltD IN ACCORDANCE WTk All APP\.ICABLE LA'v'v"S CODES. Qui.ES ANO REGU.ATIONS c. NO REPRESENTATI'vf Of THE COMPANY HAS THE AUTHQR1rv TO CHANGE THIS WAARANTV IN /WV MANNER ....+IATSOE\lfll 00 TO EXl'ENO THIS WAARANTV NO WAnRANTV Affl..IES 10 ANY PAATV OMR THAN TO IHE 011GINAl atJVCR If you hove special problems or questions coll INFILTRATOR SYSTEMS'" or your local distributor. 1I~I;I1ij1 iB L•J iT SYSTEMS INC_ 1r.JFILTRATOR'· chambers ore easily adopted to pressure distribution Simply su50end a predrilled pressure pipe 1n the top of the units with simple. foolproof plastic pipe strops Supplemental 1ns1aua11on 1nsrruct1ons. with complete details tor pressure distribution ore 01101loble ACCESS PORT Access port at the top center of each unit may be cut out and used far venting. inspection or manifold connection. Insert 4" pipe through hole and use a coupling ring as shown to keep the pipe from dropping into the chamber. Distributed by 123 Elm Street • Suite 12 • Old Saybrook, CT 06475 • 203·388·6639 • FAX 203-388·6810 PAT. NO$. 4, 159. 661 and 5.017,0.Ct Conodlan and other Patent• l'lendlng. c 1991 lnllltrolor Syatema Inc;. SS1 *0991 l ' I • 6 SCHMUESER I GORDON I MEYER ENGINEERS & SURVEYORS GLE-NWOOD SPRINGS A">Pf-N CRfSJ~(J BUTff I 18 W. 6TH, SUITE 200 P.O. BOX 2 I 55 P.O. BOX 3088 GLENWOOD SPRINGS, CO 8 I 60 I ASPEN, CO 8 161 2 CRESTED BUTIE, CO 8 I 224 970-945· I 004 970-925-6727 970-349-5355 FX: 970-945-5948 FX: 970-925-4 I 57 FX: 970-349-5358 June 14, 2002 Mr. Any Schwaller Garfield County Building and Planning 109 81h Street Glenwood Springs, Colorado 81601 Re: May Residence ISDS Lot 12, 3-Elk Run Subdivision 723 Elk Run New Castle, Colorado Dear Andy: The purpose of this letter is to provide the Garfield County Building and Planning Department correspondence indicating our concurrence that the individual sewage disposal system constructed for the May Residence has in fact been constructed in accordance to our October 12, 2001 letter to Mr. Thad Greene. Our outline specification for the construction of the system required the following be installed at a minimum: 1. Septic Tank: 2. Absorption Field: 3. Distribution box: 1,250 gallon (concrete or fiberglass) 73 infiltrator units without any size reduction for infiltrators or 37 infiltrator units with a 50% size reduction. (We allowed the decision to exercise the reduction for infiltrator use to be made by the owner) Provided the owner the septic tank (second distribution box. option of using the chamber) as the Based upon our review, the individual sewage disposal system was installed in the location outlined in our "Schematic ISDS Layout" drawing with the following components: 1. Septic Tank: 2. Absorption Field: 1,500 gallon concrete tank installed Four (4) rows of eleven (11) infiltrators were installed for a total of 44 infiltrator units. . " . .. 6 3. Distribution box: The contractor provided a distribution box in lieu of utilizing the septic tank. The distribution box was installed between the tank and the infiltrator trenches (10 feet from the septic tank). It was observed that the tank, distribution box and trenches were installed correctly (ie., level and at required depths). Based upon our observations and the fact that the system was actually installed in a larger configuration than what was required at a minimum, we can confidently state that "the system has been installed in accordance to or better than the minimum requirements required by our outline design specification of October 12, 2001." Upon your receipt, if you have any questions, please do not hesitate to call. Respectfully submitted: ROON MEYER, INC. Thad Greene, Trusfab Inc., 6181 Co. Rd. 335, New Castle, CO 81647 Tony May, 723 Elk Run, New Castle, CO 81647 C:\Documents and Settings~simonson\work\Mayisds.doc