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HomeMy WebLinkAbout2900 Catamount Creek Rd - 168728400001INDIVIDUAL SEWAGE DISPOSAL SYSTEM PERMIT EAGLE COUNTY ENVIRONMENTAL HEALTH DIVISION P.O. Box 179 - 500 Broadway • Eagle, CO 81631 Telephone: (970) 328-8755 COPY OF PERMIT MUST BE POSTED AT INSTALLATION SITE. PERMIT NO. 2164-01 BP NO. 14013 OWNER: DANIEL JOLY PHONE: 970-845-8742 MAILING ADDRESS: P.O. BOX 3874, AVON, CO 81620 APPLICANT: SAME PHONE: SYSTEM LOCATION: 2900 CATAMOUNT CREEK RD., BURNS, CO TAX PARCEL NO. 1687-284-00-001 LICENSED INSTALLER: BOB'S HOME REPAIR, BOB FORD LICENSE NO. PHONE: DESIGN ENGINEER: PHONE NO. INSTALLATION HEREBY GRANTED FOR THE FOLLOWING: MINIMUM REQUIREMENTS FOR A 4 BEDROOM RESIDENCE 1250 GALLON SEPTIC TANK,1519 SQUARE FEET OF ABSORPTION AREA CREDIT, VIA 49 STANDARD INFILTRATOR UNITS. SPECIAL INSTRUCTIONS: INSTALL IN SERIAL DISTRIBUTION IN TRENCHES WITH A CLEANOUT BETWEEN THE TANK AND THE HOUSE AND INSPEC- TION PORTALS IN EACH TRENCH. PLACE THE CHAMBERS WITH A MINIMUM OF TWELVE INCHES OF CLEAN COURSE SAND BENEATH THEM. RAKE ALL TRENCH SURFACES TO PREVENT THE SMEARING OF SOILS, AND DO NOT INSTALL IN WET WEATHER. CALL EAGLE COUNTY ENVIRONMENT- AL HEALTH TO FIELD VERIFY SAND FILL IN THE TRENCHES. BE SURE TO MAINTAIN ALL APPLICABLE SET BACK REQUIREMENTS IN REGARDS TO THE IRRIGATION DITCH AND THE WELL. CALL EAGLE COUNTY ENVIRONMENTAL HEALTH FOR FINAL INSPECTION PRIOR TO BACK FILLING ANY PART OF THE INSTALLATION OR WITH ANY QUESTIONS REGARDING THE INSTALLATION. THE BUILDING CERTIFICATE OF OCCUPANCY WILL NOT BE ISSUED UNT AP IC M H BEEN INSPECTED AND APPROVED. ENVIRONMENTAL HEALTH APPROVALLX�/ I DATE: �^ 2 CONDITIONS: 1. ALL INSTALLATIONS MUST COMPLY WITH ALL REQUIREMENTS OF THE EAGLE COUNTY INDIVIDUAL SEWAGE DISPOSAL SYSTEM REGULATIONS, ADOPTED PURSUANT TO AUTHORITY GRANTED IN 25-10-104, 1973, AS AMENDED. 2. THIS PERMIT IS VALID ONLY FOR CONNECTION TO STRUCTURES WHICH HAVE FULLY COMPLIED WITH COUNTY ZONING AND BUILDING REQUIREMENTS. CONNECTION TO, OR USE WITH ANY DWELLING OR STRUCTURE NOT APPROVED BY THE ZONING AND BUILDING DEPARTMENTS SHALL AUTOMATICALLY BE A VIOLATION OF A REQUIREMENT OF THE PERMIT, AND WILL RESULT IN BOTH LEGAL ACTION AND REVOCATION OF THE PERMIT. 3. CHAPTER IV, SECTION 4.03.29 REQUIRES ANY PERSON WHO CONSTRUCTS, ALTERS OR INSTALLS AN INDIVIDUAL SEWAGE DISPOSAL SYSTEM TO BE LICENSED. FINAL APPROVAL OF SYSTEM (TO BE COMPLETED BY INSPECTOR): NO SYSTEM SHALL BE DEEMED TO BE IN COMPLIANCE WITH THE EAGLE COUNTY INDIVIDUAL SEWAGE DISPOSAL SYSTEM REGULATIONS UNTIL THE SYSTEM IS APPROVED PRIOR TO COVERING ANY PORTION OF THE SYSTEM. INSTALLED ABSORPTION OR DISPERSAL AREA: 1519 SQUARE FEET (VIA 48 EQ 36 INFILTRATOR UNITS ) INSTALLED CONCRETE SEPTIC TANK: 1250 GALLONS IS LOCATED 320 DEGREESAND 10 FEET INCHES FROM THE WEST CORNER OF THE HOUSE FOUNDATION. COMMENTS: THE FINAL INSPECTION WAS DONE BY WILLIAM CARLSON ON MAY 6, 2002. THIS SYSTEM IS LARGE ENOUGH TO ACCOMMODATE A FOUR BEDROOM RESIDENCE. ANY ITEM NOT MEETING REQUIREMENTS WIL 'BE C B RE FINAL APPROVAL OF SYSTEM IS MADE. ARRANGE A RE -INSPECTION WHEN WORK IS COMPLETED. ENVIRONMENTAL HEALTH APPROVAL DATE: MAY 14, 2002 Incomplete Applications Will NOT Be Accepted (Site Plan MUST be attached) ISDS Permit # 9 L Building Permit # PrP'PL`ICPThON' FOR' I�TDIV�D�UAL_ ,SEWAGE ,DhSPOSAL SYSTEM PERMIT- ._ ENVIRONMENTAL HEALTH OFFICE - EAGLE COUNTY P. 0. BOX 179 EAGLE, CO 81631 Eagle (970)328-8755, Fax (970)328-0349, El Jebel (970)927-3823 **************************************************************************** * FEE SCHEDULE * APPLICATION FEE $350.00 * THIS FEE INCLUDES THE ISDS PERMIT, SITE EVALUATION (PERCOLATION TEST, * SOIL PROFILE OBSERVATION) AND FINAL INSPECTION * ADDITIONAL FEES MAY BE CHARGED IF A REINSPECTION IS NECESSARY, OR A * PRE -CONSTRUCTION SITE VISIT OR CONSULTATION IS NEEDED * REINSPECTION FEE $47.00, PRE -CONSTRUCTION SITE VISIT FEE $85.00 * MAKE ALL REMITTANCE PAYABLE TO: "EAGLE COUNTY TREASURER" **************************************************************************** PROPERTY OWNER: / A// e D 1. MAILING ADDRESS: To APPLICANT/CONTACT PERSON:' LICENSED SYSTEMS CONTRACTOR: �b COMPANY/DBA: ADDRESS: PHONE: Z PHONEE� v PHONE: *************************************************************************** PERMIT APPLICATION IS FOR: (X) NEW INSTALLATION ( ) ALTERATION ( ) REPAIR LOCATION OF PROPO�ED INDIVIDUAL SEWAGE DISPOSAL SYSTEM: Legal Description: .�IIJZ) �l6 ��mott.n /-- 6-ee/� Ai,?c Tax Parcel Number: �I� /�� �Z��tOC) 60t Lot Size: Physical Address: k41yna,,.:,4- le �o BUILDING TYPE: (Check applicable category) (�<j Residential/Single Family ( ) Residential/Multi-Family* ( ) Commercial/Industrial* Number of Number of Type Bedrooms Bedrooms *These systems require design by a Registered Professional Engineer TYPE OF WATER SUPPLY: (Check applicable category) (,�j Well ( ) Spring ( ; � f7face ( ) Public Name of Sungtier_ APPLICANT SIGNATURE: Date: 05/,.1 /1L00/ - AMOUNT PAID RECEIPT #: DATE: CHECK #:� CASHIER: DEPARTMENT OF ENVIRONMENTAL HEALTH (970) 328-8755 FAX (970) 328-8788 TDD: (970) 328-8797 TOLL FREE: 800-225-8136 www.eagle-county.com EAGLE COUNTY, COLORADO May 14, 2002 Daniel Joly P.O. Bo x3874 Avon, CO 81620 Raymond P. Merry, REHS Director RE: Final of ISDS Permit #2164-01, Tax Parcel #1687-284-00-001. Property location: 2900 Catamount Creek Rd., Burns, CO. Dear Mr. Joly: This letter is to inform you that the above referenced ISDS Permit has been inspected and finalized. Enclosed is a copy to retain for your records. This permit does not indicate compliance with any other Eagle County requirements. Also enclosed is a brochure regarding the care of your septic system. Be aware that later changes to your building may require appropriate alterations of your septic system. If you have any questions regarding this permit, please contact the Eagle County Environmental Health Division at (970) 328-8755. Sincerely, ju; Janet Kohl Eagle County Environmental Health Department ENCL: Informational Brochure Final ISDS Permit cc: files OLD COURTHOUSE BUILDING, 551 Broadway, P.O. Box 179, Eagle, Colorado 81631-0179 Geotechnical / Environmental Engineering - Materials Testing February 11, 2002 Daniel Joley P.O. Box 3874 Avon, CO 81620 Job Number: 01-5084 Subject: Additional Recommendations, Alternate On -Site Sewage Disposal System Design, Proposed Joley Residence, 2900 Catamount Road, Eagle County, Colorado. Gentlemen: As requested, Northwest Colorado Consultants, Inc. (NWCC, Inc.) has prepared this letter to outline additional recommendations for the alternate On -site Sewage Disposal System (OSDS) designed for the Proposed Joley Residence to be constructed at 2900 Catamount Road in Eagle County, Colorado. We previously completed a Subsoil and Foundation Investigation and two suitable OSDS designs for this site under this job number and dated November 21, 2001. Both of the OSDS designs meet the requirements outlined by both the Colorado Department of Healthand the Eagle County Environmental Health Department (ECEHD). Based on our conversations with the ECEHD, it is our understanding that the alternate OSDS design as submitted is not acceptable. It is our understanding that Eagle County will not allow Infiltrator chambers placed less than 12 inches below the existing ground surface. ECEHD recommended the placement of 2 feet of a clean coarse sand material beneath the chambers. We do not believe that the placement of sand fill beneath the chambers will significantly increase the level of treatment of the effluent, based on the subsurface profile at this site. We also believe that if the sand materials are placed in trenches excavated into the natural clays, the portion of the trench excavated into the natural clays will act only as a reservoir for the water, and will not filter a significant amount of effluent due to the relative impermeability of the underlying clays. After further discussion with ECEHD, it was determined that a minimum of 12 inches of sand fill materials placed in a trench beneath the chambers will be an acceptable alternative to the original design. In order to make our alternate OSDS design acceptable to ECEHD, the system should be constructed with 49 (forty-nine) Standard Infiltrator chambers or 47 (forty-seven) EQ36 Infiltrator chambers as outlined in our design. ECEHD also requires that the chambers be placed a minimum of 12 inches below the natural ground surface and a minimum of 12 inches of clean sand fill material, approved by our office, be placed beneath the chambers. RECEIVED FEB 1 4 �..� EAGLE COUNTY, Gomm V� x 970) �879.7891 • nwcc@cmn.net 2580 Copper Ridge Drive, P.O. Box 775226 - Steamboat Springs, CO 80477 N Because the ECEHD has chosen to dictate design practice and discretion, NWCC, Inc. will not accept any professional liability for th design of this system. If you have any questions regarding this letter, our observations or recommeriions or if we may be of further service, please contact this office. Sincerely, NORTHWEST CQw a O CONSULTANTS, INC., Xc: 10 n, i2fi 7 . n• Eagle Cyo#Ag/ ' W6ntal Health Department Job No. 01-4823 Northwest Colorado Consultants, Inc. page 2 1-eD 11 Ue U:j: j4p NWUU, INU. s, A _Aff.� gm� _ivorrhWest Colorado Consultants, Inc91 —, a A Geotecbg' nicallEnvironmentalE � Engineering. Materials Testing ON - Subject: Additional Recommendations, Alternate On -Site Sewage Disposal System Design, Proposed Joley Residence, 2900 Car�, ,,.� . n :punt C 12ri' Unt t4oad, Eagle y, Colorado. Gentlemen: Post -It® Fax Note February 11, 2002 Daniel Joley P.O. Sox 3874 Von, UU 81620 970-879-7891 As requested, Northwest Colorado -- Consultants, Inc, (NWCC; Inc additi sna; 1-01 unendations for the alternate On -site Sewage Disposal Systetnµ(OSDS) designed forthe Outline Proposed Joiey Residence to be censtn,ct.,d at 7gnn � _,___ -- s: v �_dlzunount Road in Eagle County, Colorado. We Previously completed a Subsoil and Foundation Investigation and two suitable- OSDS designs for this site under this j;;` ";;"'bci. and elated November 21, 2001_ outlined by both the Both of the OSDS designs meet the requirements Colorado Department of Health and the Eagle County Environmental Health- Deparhnent (ECEHD). Based on our conversations with the ECEHD, it is our understanding that the alternate OSDS design as submitted is not acceptable. It is our understanding that Eagle County will not allow Infiltrator chambers Placed less than 12 ;inches below the existing ground surface. ECEHD recommended the placement of 2 feet of a clean coarse sand material beneath the chambers_ We. do not believe that the placement of sand fill beneath the chambers will significantly increase the level of treatment of the effluent, based on the subsurface profile at this site fare ,i. __i,__ev ciao �aue that if the sand materials are placed in trenches excavated into the natural clays, the portion of the trench excavated into the natural r1av� ;;,ill , . ,.. _ _ �r the water, and will not filter a significant amount of effluent due to the„relative impe1rmeabilityservoir of the underlying clays. After farther discussion :viuh ECEiiD, it was determined that a minimum of 12 inches of sand fill materials placed !n a trench beneath the chambers will be an acceptable alternnti..e t f,.e dPyihn i., u:c W iginal �,u. In order to make our alternate OSDS design acceptable to ECEHD, the system should be cpngtrtlrted ;yiu 49 (,forry-nine) Sta:;dard Iiiflltrator chambers or 47 fo our design. ECEHD also requires that the chambers betnlaeP�n) EQ36 Infiltrator chambers as outlined in 9 r'a a tninuittittl of l2 inches below the natural ground surface and a minimum of 12 inches of clean sand fill material, approved by our office, be placed the chamhercoffice, (970) 879.7888 * Fax (970) 879-7891 • nwcc@cmn.net 2580 Copper Ridge Drive, P.O. Box 775998 . cteum5� . QL: rj,usiti i:i r P,)A7i­7 r' rev 11 Ue UJ: J94p nwt;G, INU. 97U-879-7891 p.2 Because the ECE-HD has chosen to dictate design practice and discretion, , Inc. will not accept any. professional liability for th esign of this system.- If you have an observations or reCO � — r y questions regarding this Ietter.. our 7: 4tio .s or of we may be of further service, please contact this office. Sincerely, NORTHW f EST �OT1 O CQNfi1i. r�r7 ;1`1C ,.,qua+t� I t %7tu. fl + •� t�n,T257 xc: Eagle Health Deparhrent Job No. 01-4823 Northwest Colorado Consultants, Inc. thWest Colorado Consultants, Inc. Geotechnical / Environmental Engineering - Materials Testing January 25, 2002 Daniel Joley P.O. Box 3874 Avon, CO 81620 Job Number: 01-5084 Subject: Alternate On -Site Sewage Disposal System Design, Proposed Joley Residence, 2900 Catamount Road, Eagle County, Colorado. Gentlemen: This report presents the results of an Alternate On -Site Sewage Disposal System (OSDS) design for the proposed Joley Residence to be constructed at 2900 Catamount Road in Eagle County, Colorado. We previously prepared a Subsoil and Foundation Investigation report for this site under this job number and dated, December 6, 2001. Our firm also corripleted the design of a Sand Filter' OSDS. This design was submitted in a report dated January 14, 2002: Proposed Construction: We understand that a residence will be constructed with four bedrooms when completed. Site Conditions: The project site is situated west of Catamount Road in Eagle County, Colorado. The OSDS site will be located northeast of the proposed residence. The vegetation at the site of the OSDS consisted of natural grasses, weeds and sagebrush. Natural drainage ditches are located to the west and northeast of the proposed OSDS. An irrigation ditch is located to the north of the proposed OSDS. The topography at the site is variable and the area of the proposed OSDS site generally slopes moderately to strongly down to the north on the order of 5 to 15 percent. Subsurface Conditions: To investigate the subsurface conditions at the site, a profile pit was excavated to the north of the proposed OSDS, on December 20, 2001. In addition, a test pit was excavated to the west of the proposed OSDS at the time of the subsoil investigation. The subsurface conditions encountered in the profile pits generally consisted of approximately 24 inches of topsoil overlying natural clays and shale bedrock. The shale bedrock was encountered at ' depths of 4 to 8 feet. Free groundwater was not encountered in the profile pits at the time of excavation. (970) 879-7888 - Fax (970) 879-7891 2580 Copper Ridge Drive • P.O. Box 775226 • Steamboat Springs, CO 80477 A set of 5 percolation test holes ranging from 12 to 30 inches in depth were advanced near the proposed OSDS and tests were conducted by our office to determine the percolation rate of the natural soils. The percolation tests indicate that the upper 24 inches of topsoil and natural soils in this portion of the site exhibited percolation rates from 20 to 40 minutes per inch with an average percolation rate of 27 minutes per inch. However, the deeper natural clays exhibited percolation rates in excess of 80 minutes per inch. System Design: Based on the percolation test results of the natural topsoil, we have designed a modified trench absorption system utilizing Standard or EQ36 Infiltrator chambers placed in the upper 12 inches of topsoil. The OSDS design presented below is based on the total anticipated number of bedrooms and appurtenances for the structure, as well as the Long Term Acceptance Rate (LTAR) and the average percolation rate for the natural topsoil materials. Considering the anticipated construction, we have calculated a peak effluent flow of 900 gallons per day (gpd) for the system. Based on the percolation results and EPA Guidelines, a LTAR of 0.6 gallon/square foot/day was used in the design. This results in a minimum absorption area of 1,500 square feet for conventional trench or bed absorption systems. Using a 50% reduction in the required absorption area with Standard Infiltrator chambers, we have calculated that the system can be constructed using forty-nine (49) Standard Infiltrator chambers. As an alternate, we have calculated that the system can be constructed using forty-seven (47) EQ36 Infiltrator chambers. We recommend that the trenches for the chambers be placed a maximum of 12 inches below the natural ground surface. A minimum of 18 inches of soil cover should be placed over the chambers in accordance with the chamber manufacturer's recommendations. A septic tank with a minimum capacity of 1,250 gallons is also required for the proposed residence. The system design is presented in Figures #1 and #2. The design calculations are shown in Appendix A and the specifications for the system are given in Appendix B. If the system is not activated within 30 days of installation, we recommend that the Infiltrator chambers be periodically flooded with water to prevent rodents from nesting and burrowing in the chambers, which could result in premature failure of the system. We also recommend that the system be fenced off to livestock. Limitations: The procedures and design criteria used in this design was obtained from the EPA "Design Manual - On -site Wastewater Treatment and Disposal Systems", 1980, the Colorado Department of Health "Guidelines for Individual Sewage Disposal Systems" (rev. Sept. 1997) and the Eagle County "Individual Sewage Disposal System Regulations". The sewage disposal system design presented is based on currently accepted design procedures and the existing features and usage of the facilities. If the usage of the current facilities or addition of new facilities to those currently in use in the building changes, the OSDS design will also most likely change. It should also be noted that all on -site sewage disposal systems require periodic maintenance. The failure of the owner to provide proper periodic inspection and maintenance of the system, such as the pumping of the septic tank every 3 to 7 years, can lead to premature failure of the system. Job Number: 01-5084 NWCC, Inc. page 2 F If you have any questions concerning this report or our recommendations, or if we may be of further service, please contact this office. Please be advised that Colorad law requires that a permit must be obtained prior to the construction, alteration, or use of an on -site sjvagg disposal system. Sincerely, NORTHWEST COLORADO dNSJTANTS, INC. 257 d" l?lrian D en. .1r t4oci xc: Michael Eagle County Department of Environmental Health Job Number: 01-5084 NWCC, Inc. Page 3 MOM (Not to Scale) S COL oJ Seasonal Drainage Irrigation Ditch Profile Pit rt Note Actual System Layout & Construction 50' Mimmum May Require Adjustments in the field Due to (10' Minim Variations in Topography & Vegetation if piped or lhied) Inspection Pipes (typ.) 7 = 91eM Test Pit W W96 • WMbL ° Q1 WHIM 48 Standard Infiltrator Chambers S� or 47—EQ36 Chambers srd amber's v 4 1250 Gallon W HIM Septic Tank 7 Stendard Chembns = 4Z ° Minimum 4" Solid PVC Pipe 17a Min. Grade Pike to be sleeved under driveway W/ 6" Schedule 40 PVC pipe. Fence/Property Line 4 o CONSUL TA IV Min. Rough Driveway ALTERNATE 4.S.D.S.-SITE PLAN Job Name: Proposed Joley Residence—O.S.D.S. Design Job No. 01-5084 Location: 2900 Catamount Road, Eagle County, Colorado FiviirP 4m NORTHWEST COL ORADO CONSULTANTS Standard Infiltrator Chamber Solid 4" PVC Distribution Pipe 1% Min. Grade T% Existing Topsoi Scarify 4" min. 4" PVC Inspection Pipe Finished Ground Surface �1 Topsoil Fill* (ApprOX. 18") Varies Existing Ground Surf ce The Chambers should be backfilled in accordance with the manufacturer's recommendations. INFILTRATOR SYSTEM CROSS SECTION Job Name: Proposed Joley Residence-O.S.D.S. Design Job No. 01-5084 Location: 2900 Catamount Road, Eagle County, Colorado Figure #2 APPENDIX A SUMMARY OF DESIGN CALCULATIONS A. Sewage Volume Calculations 1) 4 Bedrooms: ........................................................................................................ 4 x 150 gpd/bedroom 2) Total Average Flow.....................................................................................................................600 gpd 3) Peak Factor.......................................................................................................................................x 1.5 4) Peak Flow for Design..................................................................................................................900 gpd B. System Sizing 1) Minimum absorption area = Q/LTAR= 900/0.6 =1,500 ft2 2) Less 50% for Standard Infiltrator Chambers: 1,500 x 0.50 = 750 ft2 4) # of Standard Infiltrator Chambers: 750 ft2/15.5 ft2/chamber = 48.4 chambers => use 49 Standard chambers. 4A) # of EQ36 Infiltrator Chambers: 1,500 ft2/31.93 ft2/chamber = 47.0 chambers => use 47 EQ36 chambers. 4) Septic Tank - per Eagle County Regulations: Use a minimum 1,250-gallon tank for a four -bedroom residence. 5) Minimum well setback -per Eagle County Regulations: 100 Feet Minimum. APPENDIX B 1) The Regulations of the Eagle County Department of Environmental Health must be complied with during the construction/installation of the system. 2) Periodic construction observations must be made by the Design Engineer and County Sanitarian at the following points during Construction: a. After subgrade excavation and septic tank installation. b. After placement of chambers, but before chambers are covered. c. Upon final completion of the project. 3) The PVC pipe, perforated or non perforated, shall conform to ASTM 3034 or better quality. The chambers shall be set level. 4) The soils beneath the pipes entering and leaving a septic or aeration tank, which has been excavated shall be backfilled in 6 inch lifts and mechanically compacted. Cast iron pipe or PVC pipe meeting ASTM 3034 SDR 35 or schedule 40 shall be used for 5 feet on either side of the tank. 5) Provide a minimum of 12 inches of soil cover over the septic tank and 24 inches of soils cover over all pipes. Special care should be taken when backfilling the system to prevent disturbance/crushing of the distribution lines and chambers. The manufacturers recommendations should be closely followed when backfilling the chambers. In addition, all of the distribution lines should be carefully bedded to minimize the settlement in these lines. 6) The surface drainage shall be ditched and diverted away from sewage disposal areas. 7) The disturbed surfaces, mounds and berms shall be covered with topsoil and heavily seeded. 8) Inspection pipes to be constructed of PVC pipe with the portion of the pipe penetrating the infiltrator chamber being perforated. 9) The client and contractor are responsible for meeting and maintaining the minimum setback requirements. FAX TRANSMITTAL Eagle County Environmental Health P. O. Box 179 Eagle, CO 81631 Fax number 970-328-8788 To: Tim Travis, NWCC, Inc. Fax Number: (970) 879-7891 From: Laura Fawcett Fax Number: (970) 328-8788 Telephone Number: (970) 328-8755 RE: Joly ISDS design Date: February 6, 2002 Number of Pages: To: File From: W.T. Carlson, REHS d Re: Daniel Joley Residence ISDS Engineered Design 2900 Catamount Road Eagle County Date: January 31, 2002 Environmental Health reviewed the NWCC engineered plan and has the following concerns with the design: 1. Shallow trenches in the topsoil (20 min/inch perc) covered with topsoil fill have failed in previous installations, since effluent will likely follow the natural grade surface and leak out down grade. 2. The infiltrators need to be in the natural soil with a minimum side wall depth of 12 inches on the down grade side of the trench. Infiltrator chambers can be level with ground, not above the natural grade. 3. The under laying expansive clay subsoil has a perc rate of 80 min/inch. Therefore, EH recommends cutting trenches down 2 feet and backfilling with clean coarse sand in order to provide a cleaner effluent and additional trench capacity. 4. EH recommends investigating another site on this 38 acre parcel which may bdm re suitable location for an infiltrator trench disposal system. 5. EH recommends the installation of an alternative wastewater system such as drip irrigation; i.e., WhiteWater or Clearstream systems. 6. A copy of the NWCC engineered plans has been sent to Dale Dunnells, the Colorado Infiltrator representative for review and comment. The NWCC design engineer Tim Travis has turned this matter over to his boss Brian Len, PE for further direction. DEPARTMENT OF ENVIRONMENTAL HEALTH (970) 328-8755 FAX (970) 328-8788 TDD: (970) 328-8797 TOLL FREE: 800-225-8136 www.eagle-county.com EAGLE COUNTY, COLORADO January 31, 2002 Dale Dunnells Infiltrator Systems, Inc. 11862 West 56'h Circle Arvada, CO 80002 Re: NWCC Engineered Infiltrator Design 2900 Catamount Rd. Eagle County Dear Mr. Dunnels: Raymond P. Merry, REHS Director Please review and give us input with regards to the enclosed engineer designed on -site sewage disposal system using standard infiltrator chambers in shallow trenches under a topsoil fill. If you have any questions please call me at 970-328-8758. Sincer J William T. Carlson, REHS Environmental Health Specialist Enclosure OLD COURTHOUSE BUILDING, 551 Broadway, P.O. Box 179, Eagle, Colorado 81631-0179 January 31, 2002 David Trenkle Infiltrator Systems Inc Sales Manager 43 Crystal Rock Rd. Bailey, CO 80421 Re: NWCC Engineered Infiltrator Design 2900 Catamount Rd. Eagle County Dear Mr. Trenkle: Please review and give us input with regards to the enclosed engineer designed on -site sewage disposal system using standard infiltrator chambers in shallow trenches under a topsoil fill. If you have any questions please call me at 970-328-8758. Sincerely, William T. Carlson, REHS Environmental Health Specialist Enclosure ISDS PERMIT # 2 t (,q--011 PERCOLATION TEST EAGLE COUNTY ENVIRONMENTAL HEATLH •PHSYSICAL ADDRESS: y �` (7 U L( kx oz" - o a LEGAL DESCRIPTION: MAILING ADDRESS: TYPE OF DWELLING: NUMBER OF BEDROOMS:_ TEST HOLES PRE-SOAKED: YES NO T T SOIL TIME WATER DEPTH INCHES OF FALL RATE PROFILE '11ME TO DROP LAST INCH: PERC RATE: MINIMUM LEACH FIELD SIZE: MINIMUM SEPTIC TANK SIZE: 'AL HEALTH SPECIALIST DATE FORM EXEMPT No. 5�` A fE - F C O GWS-7 OFFILFT;TEENGIVEER 06/94 821 Centennial Bldg., 1313 Sherman St., Denver, Colorado 802D3 (303) 866-3581 ryM%0-W iF �AIIIT APPROVED PURSUANT TO CRS 37-92-602 (HOUSEHOLD, DOMESTIC, LIVESTOCK AND EXEMPT COMMERCIAL USES) PLEASE NOTE CAREFULLY THE CONDITIONS OF APPROVAL ON THE ATTACHED COPY OF YOUR PERMIT. THE CONDITIONS MUST BE COMPLIED WITH IN ORDER FOR THE PERMIT TO BE VALID. THE ISSUANCE OF THIS PERMIT DOES NOT CONFER A DECREED WATER RIGHT. THE PERMIT EXPIRATION DATE IS TWO YEARS FROM THE DATE ISSUED. The well must be constructed and evidence of it's construction must be submitted to this office in the form of a Well Construction and Test Report from the well construction contractor confirming that well construction was completed prior to expiration of the weii permit. The permit number is located in the upper right hand corner of the permit. The expiration date is located in the lower right hand corner. The expiration. date may be extended at the discretion of the State Engineer for good cause shown. If you desire an extension, you must file a written request with this office prior to the expiration date shown on the permit. The request must state why the well has not been constructed, must include an estimate of time required to complete the well, and must specify the length of extension you desire, not to exceed one (1) year. ADDITIONAL INFORMATION REGARDING . '.: ,.. .: .; .''lE=#' REGULATIONS THE WELL MUST BE CONSTRUCTED AND THE PUMP INSTALLED BY CONTRACTORS WITH CURRENT LICENSE(S) ISSUED BY THE STATE OF COLORADO unless exempted as described on the reverse side. The well construction and pump installation reports must be submitted to the office of the State Engineer within sixty (60) days of completion of the work or within seven days after expiration of the permit, whichever is earlier. Your contractor must provide you with a copy of the work report(s) filed with the State Engineer. The Well Construction and Test Report, Form Number GWS-31 and the Pump Installation and Test Report, Form Number GWS-32 are available from the Division of Water Resources offices. At least two copies of the well permit have been provided. The owner's copy is for your records. The second copy is for the pump installation contractor. Make additional copies for the well construction contractor if you select one different from the one indicated in your application. If you did not indicate a proposed driller on the application, four copies of the permit are enclosed. DO NOT GIVE YOUR'OWNER'S COPY" TO THE CONTRACTOR. The original permit is on file in the Denver Office Records Section. Additional copies may be obtained for a fee of 50 cents per page. Any change of mailing address or ownership should be reported to the State Engineer by the new owner on a "Change in Ownership/Address", form number GWS-11. Ifyhiav equiscontacttlleD"env.OTficeorthe DivisonOffewl reyouirwell' isl"oc�ated DIVISION 1 800 8th Ave Rm 321 Greeley CO 80631 (303) 352-8712 D N ox396 5 US A, / I &� 24 Glnwd Spgs=CO 81601 (803) w1w, W65 1^ DMSION 2 Box 5728 219W5thRm223 Pueblo CO 81003 (719) 542-3368 DIVISION 6 Box 773450 625 So. Lincoln Ave Stmbt Spgs CO 80477 (303) 879-0272 DIVISION 3 Box 269 422 4th St Alamosa CO 81101 (719) 589-6683 DIVISION 7 Box 1880 1474 Main St Durango CO 81302 (303) 247-1845 DIVISION 4 Box 456 1540 E Niagara Montrose CO 81402 (303) 249-6622 DENVER OFFICE Rm 821 1313 Sherman St Denver CO 80203 (303) 866-3581 Laura The followintz are directions to the ranch: Take road 13131 to Steaxx,.boat and pass McCwy Turn Lei! at the Bums Road Cross the Colorado River Vp the hill, take a. Left Travel 2-3 miles and you'11 pass the Double J Mauch. entrance Keep goiiag straight about'/4 rnile and you'll see green cattle gate with brand new post fence and enter Follow the read to the, construction site. Tim from Steamboat will be there from 10:00 am through most olf'the day. if you have a problem, don't hesitate to go the JJ Ranch office and ask for Peter (owner from whoi)1 I: purchased the land) and he'll be happy to direct you. IS 71 'C-i wnm 4 wAn7 : 7 qkk i -q7-7 Jarl In ue J.1:'Fja IYWLL:" 1r1L. NcrthWest Colorado Consultants, Inc. Geotechnical ! Environmental Engineering • Materials Testing Subject: On -Site Sewage Disposal System Design, Proposed Joley Residence, 2900 Catamount Road, Eagle County, Colorado. Ladies & Gentlemen: 87U-F3,18_7881 P. 1 Post-itO Fax Note 7671 Date d "rid �_01 To From fk i w L January 14, 2002 Daniel Joley P.Q. Box 3874 Avon, CO 81620 Job Number: 01-5084 This report presents the results of an On -site Sewage Disposal System (OSDS) uvmgn-Tor the proposed Joley Residence to be constructed at 2900 Catamount Road in Eagle County, Colorado. We previously prepared a Subsoil and Foundation investigation report for the proposed residence under this job number and dated December 5, 2001. Proposed Construction: As we understand it, the proposed residence will be constructed with 4 bedrooms when completed. It is also our understanding that a garbage disposal is not anticipated in the residence. Site Conditions: The project site is located west of Catamount Road in Eagle County, Colorado. The site of the proposed OSDS is located to the northeast of the proposed building site. The site was generally Il vegetated with grasses, weeds and sagebrush. Natural-dFarnage-ditches-are-located to-the-rxest_and-northeast �P'V' vl� ^i of.:the=px0pos€dz05D5. Anirrigattondtch:.is,=loeatedito=the nooffiic-propvsedtipS©St Jy." 1. The topography in the vicinity of the proposed OSDS is variable and generally slopes moderately to strongly down to the north on the order of 5 to 15 percent. Subsurface Conditions: To investigate the subsurface conditions at the site, a profile pit was advanced in the area of the proposed OSDS on December 20, 2001. The subsoils encountered in the profile pit generally consisted of a layer of wpmgUand organics ov gnat al elays°and sha}e bedroek^to^thet maximu�,depbh�i�.wied; 5�'l�fer�t. The topsoil encountered was approximately 24 inches in thickness. Natural clays were encountered below #1fe topsoil and extended to a depth of 4 feet. The clays were sandy, moderately plastic, stiff, dry to slightly `poist and light brown to gray in color. Shale bedrock was encountered below the clays and extended to the T laximum depth investigated, 5%z feet. The bedrock was sandy, low to moderately plastic, weathered to t� ard, dry to slightly moist and gray in color. Free groundwater was not encountered in the profile pit at the me of this investigation. (970) 879-7888 • Fax (970) 879.7891 Jan in lie i i : =rja in1ilLL" iinL. P. A set of 5 percolation test holes ranging from 112'=t 4hinches in depth were advanced within the anticipated limits of the propose sewage disposal system and tests were conducted by our office to determine the percolation rate of the natural, near surface soils. The percolation tests indicate that upper 24 inches of natural topsoil yielded percolation rates of 20 to 40 minutes per inch (mpi) with an average of 27 mpi. 1-lowe-ver, the -deeper"' natural clays exhibitedpercolation- rates in•excess of8o-mpi. S stem Design: Due to the limited amount of permeable soils, site constraints and the visual impacts of a mounded system, a sand filter pretreatment system used in conjunction with a modified trench absorption co system has been designed for the site. Tlre°�rc�desi i �.: p�r,'�'^ ates�,.a._t>tiutnum.-of„2„�-inches�ef c un ted.c ,�t Eit , lam. A subdrain collection 'system will collect and convey the pretreated effluent to a me t trenelt alSacrrptiomsysterrr EocartYd�dawnhifVofflre-felter bed - The system design is based on the residence containing four bedrooms. Using these facts we have qq t, 1� calculated a maximum peak effluent flow of 900 gallons per day (gpd) for the system. Using a t ll \ ��x recommended 1oadL']c^�, lute of .15 ""� csi LU J" 1 gpd/ft wr the sand filter, a minimum bed size of 783 ft2_ is required. A percolation rate of 27 minutes per inch for the natural topsoil was used in the sizing of the soil absorption C4Csystem. Based on this value, we have calculated a minimum absorption area of 935 square feet? However, ��, we have assumed that approximately 50 percent of the effluent flowing through the sand filter system will discharge directly into the exposed natural topsoil materials along the downhill (north) half of the sand filter bed. Therefore a minimum absorption area of 468 square feet was used in the design of the Infiltrator chambers. Using a 50 percent reduction for Standard Infiltrator chambers, this results in an absorption system consisting of 16 standard infiltrators. An alternate system consisting of 15 EQ36 infiltrator chambers car, also be used. it should be noted that the number of chambers required is based on the assumption that half of the sand filter bed will be excavated into the natural topsoil materials. Therefore, our firm should be called to the site to verify the actual conditions after the excavation for the bed had been completed and prior to the placement of the subdrain system and sand materials. Additional chambers may be required if the site conditions vary from those assumed above. Pretreatment of the effluent should be accomplished by a 1,250 gallon septic tank installed upstream of the n system. Due to the subsurface conditions encountered at the site, we recommend that a concrete septic tank be used. The sand filter should be dosed two or more times per day. We recommend the installation of a 48" minimum diameter concrete dosing tank and dosing siphon with the capacity of 150 to 200 gallons per i dose. We recommend the use of Fluid Dynamic Siphons, Inc. model #417 or equivalent. If the sand filter a:,d Infiltrator chambers are not flooded periodically it could result in the premature failure of the system. A general septic site plan is shown in Figure #1 and the sand filter and absorption system designs are shown in Figures #2 through 44. The associated design calculations and specifications are given in Appendices A and B, respectively. The procedures and design criteria used in this design were obtained from the EPA "Design Manual - On -site Wastewater Treatment and Disposal Systems", 1980, as well as the Colorado Department of Health "Guidelines on individual Sewage Disposal Systems", revised September, 1997, and the Eagle County Individual Sewage Disposal Regulations. Job Number 01-5084 NWCC, Inc. page 2 rr,� i • r �r-.r-.� -r� .r r �. r.—.r-.w,� rr-,. r...�+� r r+r-.� �� �Tai ri �i � i irr,� ri i r-.r.r�r. �--� jar, ib Lie i i:4ja iituUU, iMU. 970-879-7991 P. 3 Limitations: The sewage disposal system design presented is based on currently accepted design procedures, as well as the proposed features and anticipated usage of the facilities. If the usage of the €acility or addition of new facilities to those currently planned in the building changes, the septic system design will also most likely change. It should also be noted that all on -site sewage disposal system requires periodic maintenance. The failure of the owner to provide periodic inspection and maintenance of the system, such as the pumping of the septic tank every 3 to7 years, can lead to premature system failure. Please be advised that Colorado law requires that a permit must be obtained prior to construction, alteration or use of an on -site sewage disposal system. If you have any questions concerning this report; or if we may be of further service, J#ease contact this office, Sincerely, by CONSULTANTS, INC. xc: Mic%qg i, " Eagle %. MADo unerit of Environmental Health Job Naenb:t. 01-5094 i3wCC, inc. Page 3 jan ito ue i is qja p. 4 I (Not to Scale) Seasonal llr dmge itxigation Ditch 4& Minimum Diamter - Dodnz Tank w% Siphon Fluid c Siphon Model 417 MO Gallon Septic Tan Minimum Prop Resfdeace f 25' Min rption Mr Min. y Sanpd F101 Min. ilter 4" Solid PVC Pipe 17 Min. Grade Rough Dxiveway Ferree%Property line [ O.S.D.S. -SITE FLAN - Job Name: Proposed Joley Residence—D.&D.S. Design Location; 2900 Catamount Road, Eagle County, Colorado ob No. D1-5084 Figure #1 .tan in ue ii:44a nwUu, 1nL. 8'tu-8,18-7881 p.5 NOR Tf IWk7 ai [1 l.! L O L O Note- AotdeL a7stem riay u mayy vary 7nspeotion Pipe (tyg) vagota4ion, in topaLphy and Ch� ax (Not to Scale) 16 Standard Infiltrator Clambers or 4-t=h Solid PVC Pipe AMU 3DS4 SDIM 13 Sg36 Fnizltrator Chambers 1% ]din. Grade (typ r r Inspeetion Pipe (40 4-inch Perf. PVC L Distribution Plybig ....................................... o; ..L..._ •_•• •-•te • .. ...r b W. bIM 4-inch Perf. Pipe 9ubdrain T System; Surround wr Masked 35 ZD Caner wf Fllter Fabric 3' t I 117rAta of Sand Fgtsr I From 4-in& Spud PVC Pipa ASW W34 SDR35 Ile Min. Grade (typ•) SEEPAGE BED PLAN Job Name: Proposed Joley Residence-O.SX.S. Design Job No. 01-5084 Lacatian: 2900 Catamount Road, Eagle County, Colorado Figure #2 Jan 15 ue 1 1 : ,F94a nwuu, Imu. 87U-€ 78-78`.3. 1 y{{y A a�� Q ` �a4 0 7 - U pm [r O o QQ W I x� u= 9 w tr t 08 F4 zg'dp z 0 E"4 w C) P4 rI It a LO y� IC-t ..ai. 1::. uL it.: TTa 870-879-7891 P.7 - - = NJ XXL4t JofrA111 V l 11 � O.L a,nmuvnL .�r atiururS a uufn uu i Standard Chamber Solid 4" rv% Distribution Pipe .L/O riiia. tii A[aG Fxisting Topsoil vca. rlfy 4" min. fr 4' PVC ?r-sePction Pipe f . r- Finiahari Ground Surface � t ivp��vs'i TM, (App— 18") i i I Varies Existing Ground Surface k The Chambers should be backfilled in accordance with the manufacturer's recommendations. INFILTRATOR SYSTEM CROSS SECTION Job Name: Proposed Joley Residence-O.S.D.S. Design IJob No. 01-5084 Location: 2900 Catamount Road, Eagle County, Colorado I Figure ##4 Jan ib U2 11:44a NWUU, INU. 970-879-7891 P.8 APPENDIX A SUMMARY OF DESIGN CALCULATIONS A. Sewage Volume Calculations l) Number of Bedrooms.............................................................................................................................4 2) Total Average Flow........................................................................................4BR x 150 gpd = 600 gpd 3) Peak Factor ......................... ........... .......................... ........ .................................................................x 1.5 4) Peak Flow for Design.................................................................................................................900 gpd B. System Sizing l) Sand Filter Area = Q / Application Rate = NO aprl/ 1.15 mxi/ft2 = 7ft3 ft2 2) Absorption Area Required = [Q(Perr rate of natural soils)0•5/5]/2 = [900(27)0•5/5]/2 = 469 ft2 3) Using a 50% Reduction for Standard Infiltrators: Area = 468 x 0.50 = 234 R2 4) No. of Standard Infiltrator Chambers = 234 R2 115.5 ft2 /chamber = t 5.1 = > .,;tee 16 standard chamber-. 5) No. of F0�136 infiltrator Chambers = 468 ft2 / 31.92 ft2 / Cho kr = 14.6 = > �,�. i 5 iQ3v uhambers 6) Septic Tank - per Eagle County Regulations for a four -bedroom home - Use a 1,250-gallon minimum. tank.. Jan 1b U;� 11:4ba NWCC, INC. 970-879-7891 P.9 APPENDIX B 1) The Rules and Regulations of the Eagle County Department of Environmental Health must be complied with during the installation/construction of the system. 2) Periodic inspections must be made by the design engineer at the following points during Construction: a. After subgrade excavation, prior to placement of washed rock drain, and septic tank installation. b. After placement of gravel drain, sand fill, washed rock, piping and infiltrator chambers, prior to backfilling. c. Upon final completion of the project. 3) The PVC pipe, perforated or non perforated, shall conform to ASTM 3034 or better quality. The perforated pipe to be set level. 4) The soils beneath the pipes entering and leaving a septic or aeration tank, which has been excavated, shall be backfilled in 6 inch lifts and mechanically compacted. Cast iron pipe or pvc pipe meeting ASTM 3034 SDR 35 or schedule 40 shall be used for 5 feet on either side of the tank. 5) Provide a minimum of 12 inches of soil cover over the septic tank, 18 inches of soil over the absorption bed and 24 inches of soils cover over all pipes. A iayer of compacted clay fill materials should be placed along the sides of the bed that are constructed above the existing ground surface. 6) The surface drainage shall be ditched and diverted away from sewage disposal areas. 7) The disturbed surfaces, mounds and berms shall be covered with topsoil and heavily seeded. Heavy farm equipment and livestock should be fenced or kept off of the seepage bed area. x) The washed rock shall be covered with straw and untreated building paper or synthetic filter fabric before overlying soils layers are placed. 10 The washed rock will consist of gravel from 0.5 to 2.5 inches in size., 10) The sand filter material must be approved by the design engineer prior to use and these materials must consist of a clean, coarse sand material with a uniformity coef iciert of 4.0 or less. 11) Inspection pipes to be constructed of PVC pipe with the portion of the pipe penetrating the gravel bed being perforated. 12) It is the responsibility of the owner or the installer to comply with the minimum setback requirements. ell -+Io- el r'10" --+mow .� -•'fir.- -'y�� .10 -�-r.�- J1'�1 Ilef ants+ ` ,• .{ r x / I J r I I l t ,rJ JJ STTE PTIAN 1 4C'ALE: 71 - rpol- 11 I l Information depicted on this site plan is from a f PUN �Q�� survey drawn by EMERALD MOUNTAIN SURVEYS, INC. 1'G BOX 774512 ateomboot Springs, CCU 15D477 Prvja4t hiurnbm 1891-1. Dulcd 9/14/20D1 (970) 879-808. Rafar to tha original survey for all site information. ISDs Permit # Z <-?- o I Date - a Z TSJS Final Insvec_ tion_ CMWleteness Form ✓ Tank is gal. Tank Material Tank is located ft. and degrees fron4 (p.s..n.bc l.na..skl Tank is located ft. and degrees from Tank set level. 14ae Tank lid's W' ,*n 8" of finished grade. LJ in size of field 1 S ft2 units 3T� lineal ft. TechnologyS '/(2- $ Cleanout is installed in betweea tank and house (+ 1/100ft) There is a "T" that goes down 14 inches in the inlet and outlet of the tank. �-== inlet.and outlet is sealed with tar --,tape; rubber gasket etc. �J 2 Tank ;has two compartments with the. J:a�ger-.,-compartment closest to the...,;_,, L . house. J ,Nda&ure; distance and relative direp"on; ta; , el:�t; / / d % , £ 5 'Depth of field._ ft . Soil interface raked. �✓ Inspection portals at the.end of each trench_. `� Proper distance to setbacks. � � i jw On Chambers properly installed as per manufacturer$ specifications. (chambers latched, end plates properly installed, rocks 'removed from trenches, etc.) Type of pipe used for building sewer linleach field Other --F----= Inspection meets requirements. Copy form to installer's file if recommendations for improvement were suggested. ACTION TAKEN: j Rpe%c? Setbacks Well Potable House Property Lake Dry Tank Drain Water Lines line Stream Gulch Field 100 25 20 10 50 25 10 10 50 10 5 10 50 10 * 10 EAGLE-C-OURTY-EW; REEAUTH P.O. BOX 179 EAGLE, CO 81631 PRODUC72M (Singh Sheenl 2115-2 (mooed) L^�/® ma.. Groan, mass. 91411. to mau PHU* IM FREE a-6aWZZ5- 3aa JOB SHEET NO. I OF, CALCULATED BY qq DATE CHECKED BY ��aa /�0 an� DATE 2164-01 Tax## 1687-284-00-001 JOB NAKIE. 2900 Catamount Creek Rd. JOLY JOB NO. 1nsa 1 r1PAT1ANi % BILL TO i DATE ST RTED DATE COMPLETED DATE BILLED ol Ll —62 l G. Ill i1 r r %L r l � , l l u""k J vL I � q t)'l -4 JZLA,� iice) T ,.kw— , , Cc) JOB COST SUMMARY TOTAL SELLING PRICE TOTAL MATERIAL e9 TOTAL LABOR INSURANCE r l vLj 4-3- SALES TAX MISC. COSTS TOTAL JOB COST " ' /f- ^ l i %rr�r�< C h �G,C�Z , GROSS PROFIT grti ��.`�' i� ^ �'.� n� �I D -, I �� pJ G� ar f Z p✓C �y a� LESS LESS OVERHEAD COSTS % OF SELLING PRICE e C�� t 1, NET PROFIT JOB FOLDER Product 278 S � rat✓ S ,� Iz kS �W 9r�aNS / "!-d .tit / y 9'SrioP✓ G"irc 1 e S i1 sc� 3 c' Printed in USA �jr`S jaj Recycled Content 10% Post -Consumer 0