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HomeMy WebLinkAboutApplication.pdfG>81 q -tea -- ®6 0-6?/2,4.t._-� q- -06 F`� d -tze4- 4- ��, .er-v ✓ • (1/(20. Oo G`2i :lig GARFIELD COUNTY BUILDING AND SANITATION DEPARTMENT 108 Eighth Street, Suite 201 Glenwood Springs, Coloradof 81601 fel 624+J42=945-8212 (970) 945-8212 INDIVIDUAL SEWAGE DISPOSAL PERMIT Permit 4222 Assessor's Parcel No. 1M--5 This does not constitute a building or use permit. PROPERTY Owner's Name �6 /s?le5,' Dianaresent Addresse)K, /5-'0o Phone System Location CQ / / 7 (3 Legal Description of Assessor's Parcel No SYSTEM DESIGN ate Septic Tank Capacity (gallon) Other Percolation Rate (minutes/inch) Number of Bedrooms (or other) Required Absorption Area - See Attached Special Setback Requirements:, Date Inspector .,& 04 "– FINAL SYSTEM INSPECTION AND APPROVAL (as installed)` / �o 7 Call for Inspection (24 hours notice) Before Covering Installation ;. System Installer 7,-",:-„(x. Septic Tank Capacity Septic Tank Manufacturer or Trade Name Septic Tank Access within 8" of surface Absorption Area Absorption Area Type and/or Manufacturer or Trade Name Adequate compliance with County and State regulations/requirements Other Date c5 — Inspector ?O' l 1 Vote I e (? V i F1 W LDM 1,`CV� RETAIN WITH RECEIPT RECORDS AT CONSTRUCTION SITE *CONDITIONS: 1. All installation must comply with all requirements of the Colorado State Board of Health Individual Sewage Disposal Systems Chapter 25, Article 10 C.R.S. 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 action 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 fine — 6 months in jail or both). White - APPLICANT Yellow - DEPARTMENT INDIVIDUAL SEWAGE DISPOSAL SYSTEM APPLICATION OWNER is_ gG A/7 �s ADDRESS Po &A )&, /Veil y 77 PHONE CONTRACTOR �, '� a � /10 c --- ADDRESS /143/A irel*eccti !'(i ee t/(,,gyp PHONE 9970 ids- 02,35`7 PERMIT REQUEST FOR ().<1 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 67e4i u} ©o d (Sp t t nr Legal Description or Address y6 n C€ //7 , 6 WASTES TYPE: ()Q DWELLING . Size of Lot S•'5 ( ) TRANSIENT USE ( ) COMMERCIAL OR INDUSTRIAL ( ) NON-DOMESTIC WASTES ( ) OTHER — DESCRIBE BUILDING OR SERVICE TYPE: , vou5 i Number of Bedrooms '`7 Number of Persons (K) Garbage Grinder (X) Automatic Washer (10 Dishwasher SOURCE AND TYPE OF WATER SUPPLY: (X) WELL ( ) SPRING If supplied by Community Water, give name of supplier: DISTANCE TO NEAREST COMMUNITY SEWER SYSTEM: Was an effort made to connect to the Community System? NO ( ) STREAM OR CREEK 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 (septic tank & disposal field) 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 TYPE OF INDIVIDUAL SEWAGE DISPOSAL SYSTEM PROPOSED: SEPTIC TANK ( ) AERATION PLANT ( ) VAULT VAULT PRIVY ( ) COMPOSTING TOILET ( ) RECYCLING, POTABLE USE PIT PRIVY ( ) INCINERATION TOILET ( ) RECYCLING, OTHER USE CHEMICAL TOILET( ) OTHER -DESCRIBE FINAL DISPOSAL BY: (r) ABSORPTION TRENCH, BED OR PIT ( ) UNDERGROUND DISPERSAL ( ) ABOVE GROUND DISPERSAL ( ) OTHER -DESCRIBE ( ) EVAPOTRANSPIRATION ( ) SAND FILTER ( ) WASTEWATER POND WILL EFFLUENT BE DISCHARGED DIRECTLY INTO WATERS OF THE STATE? ua PERCOLATION TEST RESULTS: (To be completed by Registered Professional Engineer, if the Engineer does the Percolation Test) Gem at itL e Minutes 3'c per inch in hole No. 1 Minutes / 7— per inch in hole No. 2 Minutes Minutes /2— Name, address and telephone of RPE who made soil absorption tests: N e . per inch in hole No. 3 per inch in hole No. Name, address and telephone of RPE 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 permit 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 petinit 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 leg.1 action for perjury as provided by law. Signed PLEASE Date 7 A ACC ' ' TE MAP TO YOUR PROPERTY!! 1 C/) - Ch 0 I -I ) .01.) a• 'a O c• d >-1 County Road (Note the Road Number and Name) COLORADO NiimeNweRIVER ENGINEERING, INC. P.O. Box 1301 Rifle, CO 81650 Tel 970-625-4933 Fax 970-6254564 June 25, 2006 Mr. Jeff Giard Giard Homes 1431 Airport Road Rifle, CO 81650 RE: Four Mile Creek / 100 -Year Flood Analysis / Holmes Property Dear Mr. Giard: Colorado River Engineering, Inc. has prepared the following letter report summarizing our analysis of the 100 -year flood potential for your project along Four Mile Creek, located southwest of Glenwood Springs, Colorado, as shown on the attached Figure 1. The purpose of our analysis is to assist in the process of obtaining a building permit. We based our analysis on the site survey provided by Bookcliff Survey Services. We reviewed the 1986 Federal Emergency Management Agency (FEMA) Flood Insurance Study prepared for unincorporated Garfield County, Colorado. We confirmed that your property is located outside of the detailed area of study. This property is not included in the FEMA Flood Insurance Program. Although your property was not included in the FEMA study area, the study did provide data relative to the Four Mile Creels drainage area and relative to the expected 100 -year flood flow for Four Mile Creek. We used the FEMA data, the site survey, and the cross sectional data to develop a stream flow model for Four Mile Creek through the subject property. We used the US Army Corp of Engineers' HEC -RAS 3.1.3 model to calculate the expected 100 -year flood water surface elevations at the various cross sectional stations along the creek. We used the Manning's coefficient for a mountain stream of 0.05 for the main channel and the coefficient of 0.07 for over -bank areas in the HEC -RAS model. We plotted the calculated water surface elevations on the site survey and connected the water surface elevations at each cross section to delineate the expected creek boundary during at the projected 100 -year flood flow boundary, as shown on the attached Figure 2. The FEMA study determined that the Four Mile Creek drainage area is 36 square miles, sq mi, and that the expected 100 -year flood flow at the mouth of Four Mile Creek would be 1400 cubic feet per second, cfs. We reviewed the USGS 7.5 minute quadrangle topographic mapping for the Four Mile Creek basin and determined that approximately 17.7 sq mi or 49% of the basin is located upstream of the subject property. The proportion of the basin located above the subject property relative to the total Four Mile Creek basin indicates that the entire 1400-cfs flood flow for total basin would not be expected to occur at the subject property. To quantify the proportion of the 1400-cfs that would be expected at the subject property, we calculated the estimated 100 -year flood flows for the total 36 sq mi basin and for the upper 17.7 sq mi sub -basin. We used the USGS Water -Resources Report 99-4190 titled "Analysis of the Magnitude and Frequency of Floods in Colorado" and the Colorado Water Conservation Board's "Guidelines for Determining 100 -Year Flood Flows For Approximate Floodplains in Colorado, Version 6.0" to calculate flood flows for typical 36 sq mile and 17.7 sq mi basins. Copies of these documents are attached in Appendix A. The Report 99-4190 regression formula for the Northwest Colorado region produced the greatest percentage of the total flow expected for the sub -basin at 64.2%, followed by the Report 99-4190 regression formula for the Mountain region at 60.6%. The CWCB guidelines produced the lowest percentage of the total flow expected for the sub -basin at 59.8%. The Flow Estimates are attached as Table 1. To calculate the expected 100 -year flood flow at the subject property, we conservatively used a value of 65% of the total basin flow. The calculated 100 -year flood flow is 910-cfs (1400-cfs x 65%). We used the 910-cfs flood flow in the HEC -RAS model to compute the water surface elevations for Four Mile Creek during the 100 -year flood event. The estimated flows produced by the three regression equations were all less than the 910-cfs used in the HEC -RAS model. Printouts of the output from the HEC -RAS model are attached. They show the projected water surface elevations at the cross sectional stations and the profile of the Four Mile Creek through the subject property. We would recommend that any structures at the subject property be constructed outside the boundaries and at an elevation of at least 1 -ft above the flood water surface elevation delineated on Figure 2. It should be noted that the 100 -year flood flow exceeds that capacity of the culvert at the road crossing. We would recommend that improvements be made to the road crossing to reduce the likelihood of overtopping during high stream flow conditions. This analysis provides an engineering estimate 100 -year flood flows based on standard practices and methods. There is no guarantee that a flood will not occur that exceeds this estimate. The property owners should be notified that this property is not currently mapped by FEMA and part of the National Flood Insurance program. The house location and site grading alternatives can be explored to offer additional protection to the structure. If you have any questions, please do not hesitate to call 625-4933. CM:mh 100 Year Flood.doc Sincerely, J Christopher Manera, P.E. 2 Total Drainage Area Four Mile Creek Per FEMA Study 36SgMi Sago, "'g y6000' 't M:\Land Projects R2\696-Holmes\Four Mile.dwg, 6/23/2006 2:21:35 PM, KONICA MIIVuu n mag co or ['A/VW Fourmile Creek lOrainage Area Above U"SG'Gage 16.7 Su Mi[ Additional Drainage Area Teibutary%to Subyeet Property 1.0 Sq Mi. f ti Rtv.6 ,r Suniight Mountain::; Resort /', Approximate Boundary Subject Property USGS Gage 9084609 1,9571o,1965, Total Drainage Arco Above Subject Property 7.7 Sq Mi or 49% Total Four Mile Basin Background topography fi'om USGS 7.5 minute Cattle Creek, Center Mountain, Quaker Mesa, and Stony Ridge quadrangles photo revised in 1987. PO Box 1301 Rifle, CO 81650 Tel 970-625-4933 Fax 970-625-4564 \itaiNsoCOLORADO \INireRIVER ‘411111NeENGINEERING Civil Engineering ,Water Rights, Augmentation Plans ,Groundwater, Well Permitting ,Hydrology, Flood Plain Analysis ,Canals, Pipelines, Dams General Location Map Pile Nanlr£nur Mile.dwg Job No 696 Drawn by. Mn Aprvd by: CM Date'. June 23.2006 Client olmes Gtech HEPWORTH -PAWLAK GEOTECHNICAL January 8, 2007 Giard Homes Attn: Jeff Giard 1431 Airport Road Rifle, CO 81650 Hepworth-Pawlak Geotechnical, Inc. P. O. Drawer 1887 Si lverrhornc, Colorado 80498 {'hone: 970-468-1989 Fax: 970-468-5891 email: hpgeo4©hpgeotech.com Job No. 407 0271 Subject: As -Built Evaluation of Individual Sewage Disposal System, Proposed Holmes Residence, 8984 County Road 117, Garfield County, Colorado. Dear Mr. Giard: Hepworth-Pawlak Geotechnical, Inc. has observed the installation of the Individual Sewage Disposal System (ISDS) for the five bedroom residence on the project site. The ISDS components observed include: septic tank, dosing tank, automatic siphon, sewer pipe, effluent pipe, cleanouts, manifold pipes, distribution lateral pipes, Infiltrator chambers, inspection ports, distribution box and the locations of all components. The location and orientation of the absorption area was moved approximately 20 feet from the location shown in our ISDS design. However, this should not alter the effectiveness of our design. In addition, our design specified five rows of 17 chambers. The system was constructed with three rows of 21 chambers and one row of 22 chambers. The minor variation in trench length should not affect the effectiveness of the ISDS. An abandoned dry ditch was present on the site southeast of the proposed ISDS. The ditch was no longer in use and was abandoned by filling it in with on-site soils. Based on our observations made during our site visit on November 13, 2007, it is our opinion, that the ISDS was constructed in accordance with the ISDS design plan, dated September 17, 2007 (Job No. 407 0271) except for the changes noted above. The ISDS As -Built plan view is shown on the attached Figure 1. Sincerely, HEPWORTH - PAWLAK GEOTECHNICAL, INC. cu2JVI,ckOW--�-LL- Audja R. McDowell - Staff Engineer Reviewed by: Ronald J. Uhle, P.E. C.C.E. — Associate Attachments: Figure 1 — ISDS As -Built Site Plan Glenwood Springs 970-945-7988 • Parker 303-841-7119 • Colorado Springs 719-633-5562 0 ° D 5 .<D N 50°40'10" E 447.29' s N 26°51'02" E 99.97 N 44°59'54" E 219.73' Rebar and Cap LS No. 19598 in Place S 89°56'41" E 829.76' 167.7' 0 10 N 89°4739" W 500.00' 558. ' Proposed Home (See Detail) N 89054'46" W .BOUNDARY SCALE: 1"=2001 LEGEND Edge Of Vegitation Water Fir Tree 5' -- 1345.87 S 00'12'16" W North East Corner of Section 34 A Brass Cap in Flace A Parcel of Land Situate n the NE�4N,E1�� d the NW1/4]\TE1J4 and the SW1/4NE1/4 of Section 34, Township 7 South, Range 89 West of the 6th P.M., County of Garfield, State of Colorado 18' Dia. CMP Invert Elev.= 7496.40' f a. 7 , . i / 7 1 oas" 5e°12 7 Cam Cr /' 7 4 Qv i / o f 7 500 f / Gate •Vi'' 1 7524 1 ■ Hea• -:ate 7512 Proposed Home [See Detail) 7502 —'CenterIane of Ditch (Dry & Abanded Per Builder) Septic Field To Be 100' Or More From Creek 7 GRAPE SCALE x mar 7 w ro A. PROPERTY DESCRIPTION A PARCEL OF LAND SITUATE IN THE NE1/4NE1/4 AND THE NW1/4NE1/4 AND THE SWI/ 4NE1 / 4 OF SECTION 34, TOWNSHIP 7•SOUTH, RANGE 89 WEST OF THE 6TH P.M., COUNTY OF GARFIELD, STATE OF COLORADO NOTES 1.) DATE OF SURVEY WAS NOVEIVIBER 9, 2005. 2.) THIS SURVEY WAS PREPARED WITHOUT THE BENEFIT OF A CURRENT TITLE COMMITMENT AND DOES NOT REPRESENT A TITLE SEARCH .BY THIS SURVEYOR OR BOOKCLIFF SURVEY SERVICES, INC. OF THE PROPERTY SHOWN TO DETERMINE OWNERSHIP, COMPATIBILITY WITH ADJOINING PARCELS, OR EASEMENT OR ENCUMBRANCES OF RECORDS AFFECTING THIS PARCEL. 3.) THE PROPOSED BUILDING SITE AND LEACH FIELD ARE NOT LOCATED WITHIN A 30% SLOPE AREA. 4.) THIS SITE PLAN DOES NOT REPRESENT A BOUNDARY, IMPROVEMENT OR IMPROVEMENT LOCATION CERTIFICATE SURVEY BY BOOKCLIFF SURVEY SERVICES, INC. OR AND OF ITS ASSOCIATES. 5.) APPROXIMATE ELEVATION OF THE SITE, BASED ON THE USGS CATTLECREEK QUAD, EQUALS 7500 FEET NGVD 2 f S UR VEYOR'S STATEMENT I, MICHAEL J. LANGHORNE, A REGISTERED LAND SURVEYOR, LICENSED UNDER THE LAWS OF THE STATE OF COLORADO DO HEREBY CERTIFY THAT THE SURVEY SHOWN HEREON W ,r.� , •.;, ON THIS DATE JULY 5, 2006 BY ME OR UNDER MY DIRECT SUPi1RVI `+ � 140,,'54. G THAT THIS MAP ISA TRUE REPRESENTATION THEREOF. u�~ `f. 'W' MICHAEL J. LA FOR AND ON BE BOOKCLIFF SUR 4r QRNE, COL . OF fVie REGISTRATION NO. 36572 DESCRIPflQN a PIW 0 CI EL cc cc la cc FILE: 05193-01 DFT. TG CK. MUL DATE: 6/30/06 PROJECT NO. 05193-01