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HomeMy WebLinkAbout264 Red Rock Rd - 246510401002 - 1975-00ISINDIVIDUAL 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. 1975-00 BP NO. 13024 OWNER: MICHAEL TIERNEY PHONE: 970-927-0849 MAILING ADDRESS: 370 RIVERSIDE DRIVE, BASALT, CO 81621 APPLICANT: AMY CONRARDY PHONE: 970-925-3444 SYSTEM LOCATION: 0264 RED ROCK RANCH, BASALT, CO TAX PARCEL NO 2465-104-01-002 LICENSED INSTALLER: LAMORTE AND COMPANY, LTD, PETER LAMORTE LICENSE NO. 40-00 PHONE: 970-963-1776 DESIGN ENGINEER: CHURCH AND ASSOCIATES, INC., TIM PETZ PHONE NO. 303-463-9317 INSTALLATION HEREBY GRANTED FOR THE FOLLOWING: MINIMUM REQUIREMENTS FOR A 5 BEDROOM RESIDENCE 2000 GALLON 2-COMPARTMENT SEPTIC TANK, 1209 SQUARE FEET OF ABSORPTION AREA, VIA 39 INFILTRATOR UNITS, AS PER ENGINEER'S DESIGN SPECIAL REQUIREMENTS: INSTALL AS PER ENGINEER'S DESIGN REVISIONS DATED 5/2/00. BE SURE TO MAINTAIN A 200 FT SET BACK TO ALL OF THE WELLS IN THE VICINITY, AND ALL OTHER APPLICABLE SET BACK REQUIREMENTS. INSTALL INSPECTION PORTALS IN EACH TRENCH AND A CLEANOUT BETWEEN THE TANK AND THE HOUSE. DO NOT BACK FILL WITH ANY COBBLES LARGER THAN 8" IN DIAMETER. ENGINEER IS RESPON- SIBLE FOR FINAL INSPECTION. DO NOT BACK FILL ANY PART OF THE INSTALLATION UNTIL THE ENGINEER HAS INSPECTED AND APPROVED IT. ENGINEER'S AS -BUILT DRAWING NEEDED FOR FINAL APPROVAL. BUILDING CERTIFICATE OF OCCUPANCY WILL NOT BE ISSUED UNTIL THE SEPTIC SYSTEM HAS RECEIVED FINAL APPROVAL. Y' -PLC,& IrN -5 ENVIRONMENTAL HEALTH APPROVAL1.(lDATE: MAY 4, 2000 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: 1209 SQUAREFEET(VIA 39 INFILTRATOR UNITS AS PER DF.STGN ) INSTALLED CONCRETE SEPTIC TANK: 2000 GALLONS IS LOCATED DEGREES AND @ 5 9 FEET INCHES NORTH FROM THE CLEANOUT ON THE NORTH S D . OF THF. HOTTSF SEE AS RTTTT TS FOR 1,OC 21C)N OFCOMPONENTS COMMENTS: ENGINEER FINAL CERTIFICATION RECEIVED JULY 27, 2000, THE LEACH FIELD FOR THIS SYSTEM IS LARGE ENOUGH TO ACCOMMODATE A FIVE BEDROOM RESIDENCE THF TANK TS OVER—S=T) Awn LARGE ENOUGH FOR SEVEN BEDROOMS, ANY ITEM NOT MEETING REQUIREMENTS WILL BE CORRECTED BEFORE FINAL APPROVAL OF SYSTEM IS MADE. ARRANGE A RE -INSPECTION WHEN WORK IS COMPLETED. ENVIRONMENTAL HEALTH APPROVAL �1�'i `mil (Y �� DATE: AUGUST 2, 2000 .• •• • • ---- -- -- ----- ---- � � 1...� Yv riGn 7 � CJJCO✓JJ� 7 I IJ � 17 r tJ7CU' C1Cfd 1'': L''� ij Incomplete Applications Will NOT Be Accepted (Site Plan MUST be attached) iqq ISDS Permit # Building Permit #OZ APPLICATIONS FOR INDIVIDUAL SEWAGE DISPOSAL SYSTEM PERMIT ENVIRONMENTAL HEALTH OFFICE - EAGLE COUNTY P. O. BOX 179 EAGLE, CO 81631 328-8755/927-3823 (El Jebel) * PERMIT APPLICATION FEE $150.00 PERCOLATION TEST FEE $200.00 * * * MADE ALL REMITTANCE PAYABLE TO: "EAGLE COUNTY TREASURER" PROPERTY OWNER: PHONE:ILC-1,41 MAILING ADDRESS: ® JL&aZ, f� r, PHONE, � `f `� APPLICANT/CONTACT PERSON: G� �Ut� . Yll (p PHONE: LICENSED SYSTEMS CONTRCC COMPANY/DBA: ADDRESS: PER1v1IT APPLICATION IS FOR: �) NEW INSTALLATION ( ) ALTERATION ( ) REPAIR LOCATION OF PROPOSED INDIVIDUAL SEWAGE DISPOSAL SYSTEM: Legal Description: Tax Parcel Number: Physical Address! 004- BUILD NG TYPE: (Check applicable category) t Residential/Single Family Number of Bedrooms ( Residential/Multi-Family* Number of Bedrooms { ) Commercial/Industrial* Type TYPE F WATER SUPPLY: (Check applicable category) Well { ) Spring ( ) Surface { ) Public Name of Supplier: *These systems require design by a Registered Professional Engineer SIGNATURE: Date: AMOUNT PAID: " Jam✓ RECEIPT # : DATE: zy--- CHECK {# : CASHIER- Community Development Department (970) 328-8730 FAX (970) 328-7185 TDD (970) 328-8797 Email: eccmdeva@vail.net http: //www.eagle-county.com August 2, 2000 Michael Tierney 370 Riverside Drive Basalt, CO 81621 EAGLE COUNTY. COLORADO Eagle County Building P.O. Box 179 500 Broadway Eagle, Colorado 81631-0179 RE: Final of ISDS Permit #1975-00, Tax Parcel #2465-104-01-002. Property location: 0264 Red Rock Ranch Rd., Basalt, CO. Dear Mr. Tierney: 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, Janet Kohl Environmental Health Department Eagle County Community Development ENCL: Informational Brochure Final ISDS Permit cc: files Community Development Department (970)328-8730 FAX (970) 328-7185 TDD (970) 328-8797 Email: eccmdeva@vail.net http: //www.eagle-county.com Date: May 4, 2000 EAGLE COUNTY, COLORADO TO: LaMorte and Company LTD Eagle County Building P.O. Box 179 500 Broadway Eagle, Colorado 81631-0179 FROM: Environmental Health Division RE: Issuance of Individual Sewage Disposal System Permit No. 1975-00. Tax Parcel # 2465-104-01-002; Property Location: 0264 Red Rock Drive, Basalt, CO., Tierney residence. Enclosed is your ISDS Permit No. 1975-00. It is valid for 120 days. The enclosed copy of the permit must be posted at the installation site. Any changes in plans or specifications invalidates the permit unless otherwise approved. Please note any special requirements that may have been added to the design by this department. Systems designed by a Registered Professional Engineer must be certified by the Engineer indicating that the system was installed as specified. Eagle County does not perform final inspections on engineer designed systems. Your TCO will not be issued until our office receives this certification. Permit specifications are minimum requirements only, and should be brought to the property owner's attention. This permit does not indicate conformance with other Eagle County requirements. Please notify this office if you have not been contracted to perform this installation. If you have any questions, please feel free to contact the Environmental Health Division at 328- 8755. cc: files Church and Associates, Inc., Tim Petz qlb - q q �- 5803 Associates, ENGINEERS & GEOLOGISTS February 29, 2000 David Johnson Architects ATTN: Amy Conrardy 418 East Cooper Street, Suite 206-B Aspen, Colorado 81611 C05- 3ygy -bp- r3oaq � a I-O'l7 Subject: OWS Design, Proposed Tierney Residence Lot 2, Red Rocks Drive`�'i(�e;J Eagle County, Colorado Job No. 12042 oa&'C Puy ruck Po- Dear Ms. Conrardy, As requested, we have investigated subsurface conditions at the site and designed an onsite wastewater system (OWS) for the proposed residence. We conducted the percolation test on February 22, 2000. SITE CONDITIONS The lot is located in a rural residential area in Eagle County, Colorado. The proposed drain field area has a slope of 1-2% to the north. There is a thick cover of native grass in the proposed field area. PROPOSED CONSTRUCTION A five -bedroom residence is proposed at the location presented on Figure 1. In accordance with the Individ- ual Sewage Disposal System (ISDS) regulations, the sewage loading for a 5-bedroom residence is at 750 Gallons Per Day (GPD) average. The sewage loading with a peaking factor of 1.5 is1IM-5=GPD, This load- ing includes a dishwasher, garbage grinder, and washing machine. The residence will be served water by onsite well, which is located l0 .F-wfeet*om�Ahe�pT-oposed°,,drain field% k U f� SUBSURFACE CONDITIONS 0.�v We performed a subsurface investigation by digging four percolation holes, 31Z,to nches deep, and one profile pit at the locations indicated on Figure 1. Subsurface conditions at Profinsisted of 6 inches of topsoil, underlain by sandy clay to 2 feet, underlain by sand with gravel and ,ed the maximum depth explored of 8 feet. No groundwater or bedrock was encountered. Percolation test results indicate percola- tion rates of A-;tw40-minutes perinch=(dVIPI). The avempmcolation rate is 28.1 iPt-Based on the LTAR table the application rate for the soil would 12 gaUSF/day earcesigthegdr d abased an our aver gad pie olaiion rate of 28 �V I'T, which is`ap 0 gaUSF/day. ,..- - . i RECOMMEND21MONS tom` The OWS should include installation of one 2000-gallon, two -compartment septic tank with a pump in a Biotube vault in the second compartment and three "chamber" trenches as presented on Figure 1. Each trench should have 1 row of 13 chambers. The OWS design is based on an average sewage load of 1125 DENVER 4501 Wadsworth Boulevard Wheat Ridge, CO 80033 CASTLE ROCK 303.660.4358 303.463.9317 Fax:303.463.9321 EVERGREEN 303.816.1455 OWS Design Job No. 12042 Page 2 GPD and a percolation rate of 28 MPI. Serial distribution is proposed for the OWS design. Pump det ' are presented on the pump curve. If additional bedrooms are anticipated, we recommend the OWS be sized for ` the n uild-out num Fer of bedrooms. Movement over the drain field trench bottom during construction should be kept at a minimum to prevent compaction of the receiving soils. We recommend the bottom of each trench be scarified with a pick, shovel, or backhoe bucket teeth prior to the addition of dispersal gravel. OPERATION AND MAINTENANCE The owner must realize an OWS is different from public sewer service, and must assume the responsibility for maintenance of the OWS. The system is relatively maintenance free, but the owner must have the septic tanks pumped. In the absence of a monitoring program, we recommend the septic tank be pumped and the effluent filter cleaned every two years. There are daily considerations, such as not putting plastic or other nonbiodegradable material into the OWS. Water use must be monitored so toilets are not allowed to run when seals malfunction. To illustrate the point, a running toilet can consume in excess of 1000 GPD. A loading of 1000 GPD could flood and irreparably harm the OWS. The loading from the backwash of a water softener may be harmful to the OWS. A separate drywell should be constructed for the backwash waste, if a softener is installed. Chemically treated water from a swimming pool or spas should not be introduced to the OWS. LIlVIITATIONS An OWS design requires installation by a contractor who is experienced in its installation. Our investigation, layout, design and recommendations are based on data submitted. If subsurface conditions considerably different from those described in this report are encountered, we should be notified to evaluate the effect on the proposed OWS. If the health department makes modifications to this design, we should be contacted to evaluate the impact on the performance of the OWS. All construction is to be in accordance with the ISDS regulations. Pipe type and size, burial requirements, septic tank construction, and other specifications, which are not depicted in our report, are to conform to the requirements of the ISDS regulations. The installer of the system is to have demonstrated knowledge of the Eagle County ISDS regulations and requirements. If there are any questions or if we can be of further service, please call. The project manager is Tim Petz. CHURCH & Associates 'Z Edward O. Church, P EOC/trp :uJ 13172 3 copies sent fax copy to 970.920.2186 2.7 ACRES ,LOT 2, RE ROCKS ROAD EAGLE COUNTY, COLORADO IRRIGATION DITCH (MUST BE 50 FEET DRAIN FIELD) PROFILE-1 0 0 0 0 0 P-4 P-3 P-2 P-1 SCALE 1 " = 6 0' WELL (100 FEET MINIMUM FROM DRAIN FIELD) SITE PLAN AND LOCATION OF PERCOLATION HOLES JOB NO. 12042 FIGURE 1 2.7 ACRES SCALE °LOT 2, RE ROCKS ROAD 1 Is - 609 EAGLE COU TY, COLORADO 604.5 SF OF INFILTRATIVE AREA IN 3 GRAVELLESS TRENCHES WITH \ INFILTRATORS USING SERIAL DISTRIBUTION 50 FEET SETBACK \ CLiL T WELL ONE 2000-GALLON TWO -COMPARTMENT PRECAST CONCRETE SEPTIC TANK WITH PUMP IN BIOTUBE VAULT IN SECOND COMPARTMENT LOCATION OF PROPOSED OWS JOB NO. 12042 FIGURE 2 n D § � � � a � _ 2§ 2 }} / . Ld /�R §w E . « )){ k�f� « § � ��� to ' a / k K% ƒ /w e� k d \ � g $ (Lƒ 2 m z m[� §bo &, E < § $ - _ •®§& _ . Ld _ a.` k k b�% § §�\§ o«« fee UP § �fI tq § § §q k k \ 2 C, z ' R 0 o F 2 § E9- m \ 6 @ ` K ® f § k ci bk En &7�&�§ § w_� \ /■§§�§) $ � « � § *'���-§ � a IL§ § § K EZ& }}§k }7WMRImk \ <_ 0 z § k � § OFAM CD kn CA Co 00 N N 0 o to o o to as o cv o �r r�- o C1 N r CV C C O C 'u _N 0 N N 3 oto in v v tA- 3 o S OI 0 -C � 0 0 o a rn m a) �- M g `m r a tt } U CL > J 3 _ o o aaa�'(HQl.I peaH �iweurifl IeiQ1 oj 0 (� ao r o o LC) `-r 4 N N C) C) Ci C1 .a j 6 i W O ❑ aEi j CL W J = 0 E _ rn n s C- p ~ s % � a? C U 0 s N LPL CO z u` Q, o o 0�} O J UJ W O J S J d o ay S Cl kn 0 0 c� CL tU 0 a) rn la s U ti 0 0 t PROFILE: TABLE 1 - PERCOLATION TEST RESULTS LOT 2, RED ROCKS ROAD Eagle County, Colorado DATE OF TEST: 2-22-00 0 - 6" Topsoil, Root Zone 6" - 2' Clay to Silt, Sandy, Sparse Gravel, Stiff, Moist, Red/Brown/Grey 2' - 8' Sand with Gravel and Large Cobbles, Dense, Moist, Red/Brown NO GROUNDWATER OR BEDROCK AVG. INTERVAL HOLE DEPTH TIME DEPTH DEPTH CHANGE, PERC. HOLE OF HOLE, INTERVAL, START, END, NUMBER (INCHES) RATE PERC. (INCHES) (MINUTES) (INCHES) (INCHES) (MPI) RATE, tMpn 1 31 30 5.00 7.25 2.25 13 30 3.00 4.25 1.25 24 30 4.25 5.25 1.00 30 30 5.25 6.25 1.00 30 30 6.25 7.25 1.00 L 30 30 2 41 30 4.00 5.50 1.50 20 30 5.50 7.00 1.50 20 30 2.00 3.75 1.75 17 30 3.75 4.50 0.75 40 30 4.50 5.25 0.75 40 40 x AVG Remarks: Holes presoaked 8 hours prior to data collection .SOB NO. 12042 P PROFILE: TABLE 1 - (Cont.) PERCOLATION TEST RESULTS LOT 2, RED ROCKS ROAD DATE OF TEST: 2-22-00 Eagle County, Colorado S- 6 14nce.r1 Finn 0 - 6" Topsoil, Root Zone 6" - 2' Clay to Silt, Sandy, Sparse Gravel, Stiff, Moist, Red/Brown/Grey 2'- 8' Sand with Gravel and Large Cobbles, Dense, Moist, Red/Brown NO GROUNDWATER OR BEDROCK AVG. INTERVAL HOLE DEPTH TIME DEPTH DEPTH CHANGE, PERC. HOLE OF HOLE, INTERVAL, START, END, NUMBER (INCHES) RATE PERC. (INCHES) (MINUTES) (INCHES) (INCHES) (MPI) RATE, IMPII a.: Yt 4 1� N3 a{J,z � KQ het t 14 Remarks: Holes presoaked 8 hours prior to data cpllection JOB NO. 12042 rlaZ3 ur. uu uzi: ioa rezer Lamorze bba_IU'!2 P. 1 Attention: Janet Kohl 0477 Lions Ridge Road Carbondale, Colorado 81623 970-963-1776 FAX 970-963-1072 Date: 5/2/00 Company: Eagle Co Environment Health Number of Pages: 3 Fax Number: Voice Number - Subject: Comments: 1-970-328-0349 1-970-328-8755 Tierney Residence Lot 2 Red Rock Rd. Permit # 13024 Tim, Janet and Amy The leach field had to move less than 40' to meet the requirement of 200' separation between the well and the leach field as per the recorded plot plan. If you could both review this location and make sure it meets all other requirements I would appreciate it. The irrigation ditch has been abandoned and rerouted by the neighbor to the west. The other ditch is a Bar ditch for red rock road. Please let me know if this puts us back on track for receiving a building permit. Tim, I would suggest that these drawing be included with your packet that was submitted to Eagle County. Please call with questions. hank you eter LaMorte FS-00026 BRISTOL AT ARROWHEAD MAY-2-2000 TUE O7:13AM ID:EAGLE COUNTY ENV HEALTH O1/01/1996 PAGE:1 lD?M I-IC343 uc- uu UO; Loa re-Ger uanorre `' Remove Abandoned Ditch LQ 5EPTIC LEECH FIELD 13M IRMA 77ON S�Ale -5b -ri 1c, M7. 4 Anm TM. r-^.Fl r rMl lklTV rk 11 1 I 1rf l TI I 1,4s:u uc uu uo: ioa re-cer uanorre Zjbj-lu"le p. ,, .V Mtl\1 __ ^ ^'imm i TI 11— tam . A 11— T Il . —1 1— J+f51 IL — J — 11 1 1 1— — I naz) U�a UU Uc..30ly UNUMUM & Nssacar 1 es JUS-4b i-b ie 1 May 2, 2000 CHURCH & ENGINEERS & GEOLOGISTS David Johnson Architects ATTN: Amy Conrardy 418 East Cooper Street, Suite 206-B Aspen, Colorado 81611 Subject: Revised OWS Design, Proposed Tierney Residence Lot 2, Red Rocks Drive Eagle County, Colorado Job No. 12042 Dear Ms. Conrardy, 'M. Per telephone conversations with the Eagle County Health Department, we have revised the OWS design for the subject site. The revision includes clarification of setback requirements and reorientation of the drain field. The original OWS design was dated February 29, 2000. Our revision includes revised Figure 2. The original Figure 2 should be removed to avoid confusion. SITE CONDITIONS The lot is located in a rural residential area in Eagle Courny, Colorado. The proposed drain field area has a slope of 1%-21/u to the north. There is a thick cover of native grass in the proposed field area. PROPOSED CONSTRUCHON A five -bedroom residence is proposed at the location presented on Figure 1. In accordance with the Individual Sewage Disposal System (ISDS) regulations, the sewage loading for a 5-bedroom residence is at 750 Gallons Per Day (GPD) average. The sewage loading with a pealing factor of 1.5 is 1125 GPD. This loading includes a dishwasher, garbage grinder, and washing machine. The residence will be served water by an onsite well. The proposed drain field must bee200feef'frem a11'vvells. SUBSURFACE CONDITIONS We performed a subsurface investigation by digging four percolation holes, 31 to 41 inches deep, and one profile pit at the locations indicated on Figure 1. Subsurface conditions at Profile-1 consisted of 6 inches of topsoil, underlain by sandy clay to 2 feet, underlain by sand with gravel and cobbles to the maximum depth explored of 8 feet. No groundwater or bedrock was encountered. Percolation test results indicate percola- tion rates of 15 to 40 minutes per inch (MPI). The average percolation rate is 28 MPI. Based on the Long Tenn Acceptance Rates (LTAR) table the application rate for the sandy soil, located at the subject site at a depth of 2 feet, would be 1.2 gal/SF/day. We are sizing the drain field based on the sandy soil encountered at 2 feet, and a percolation rate of 28 UPI. DENVER 4501 Wadsworth Boulevard Wheat Rldge, CO 80033 CAsYLE ROCK 303.660.4358 an* Ae15 ears Fax: 303A63.9321 EVERGREEN 303.816.1455 Anv_'a_10raMM 1_117n Mn. teener rr. . r^rl r — 1-- —11 1 1 1-1 — na72 uo uu uc:0ZjP UNUKUH & Hssocazles ju:i-qua-Jae1 p. 2 Revised OWS Design Job No. 12042 Page 2 RECOMMENDATIONS The OWS should include installation of one 2000-gallon, two -compartment septic tank with a pump in a Biotube vault in the second compartment and three "chamber" trenches as presented on Figure 1. Each trench should have 1 row of 13 chambers, for a total of Rj. The OWS design is based on an average sewage load of 1125 GPD, a percolation rate of 28 MPI, and an LTAR of 1.0 gaisJSFJday. Serial distribution is proposed for the OWS. A pump is required due to elevation differences from the tank to the drain field. Pump details are presented on the pump curve. The pump should be set for a 200-gallon dose. The trenches should be installed in the sandy soil and gravel and not the upper clay layer. Our investigation indicates the sandy soil is at a depth of 2 feet. If additional bedrooms are anticipated, the OWS should be sized for the final build -out number of bedrooms. If changes in the length of the trenches need to be made to satisfy setback requirements, our firm should be notified to verify these changes. Movement over the drain field trench bottom during construction should be kept at a minimum to prevent compaction of the receiving soils. We recommend the bottom of each trench be scarified with a pick, shovel, or backhoe bucket teeth prior to the addition of dispersal gravel. OPERATION AND MAINTENANCE The owner must realize an OWS is different from public sewer service, and must assume the responsibility for maintenance of the OWS. The system is relatively maintenance free, but the owner must have the septic tanks pumped. In the absence of a monitoring program, we recommend the septic tank be pumped and the effluent filter cleaned every two years. There are daily considerations, such as not putting plastic or other nonbiodegradable material into the OWS. Water use must be monitored so toilets are not allowed to run when seals malfunction. To illustrate the point, a running toilet can consume in excess of 1000 GPD. A loading of 1000 GPD could flood and irreparably harm the OWS. The loading from the backwash of water softener may be harmful to the OWS. A separate drywell should be constructed for the backwash waste, if a softener is installed. Chemically treated water from a swimming pool or spas should not be introduced to the OWS. LlWrATIONS An OWS design requires installation by a contractor who is experienced in its installation. Our investigation, layout, design and recommendations are based on data submitted. If subsurface conditions considerably different from those described in this report are encountered, we should be notified to evaluate the effect on the proposed OWS. If the health department makes modifications to this design, we should be contacted to evaluate the impact on the performance of the OWS. All construction is to be in accordance with the ISDS regulations. Pipe type and size, burial requirements, septic tank construction, and other specifications, which are not depicted in our report, are to conform to the requirements of the ISDS regulations. The installer of the system is to have demonstrated knowledge of the Eagle County ISDS regulations and requirements. AnV_-Z_0rArAM I.1c'm r Ol -2=MM TMr!* YF_^I [" f r l 11.IT4! r1.11 1 1 1— — 1 1-141 u�3 uu Uc:.J�p UHUKUH & HSSOOaLles Jui-463-J321 p.3 Revised OWS Design Job No. 12042 Page 3 If there are questions or if we can be of further service, please call. The project manager is Tim Petz. Sincerely, CHURCH & Associates Inc. Edward O. Church, P.E. EOC/trp 3 copies sent fax copy to 970.920.2186 IAnV_-Z_"JllilwM 1-1=M 1:3 .='MM TM.CA!_'I r_ / MI ILMkl rkll l I1-1 —I 1 IGy uo u" uc s -rur. �.nulc r.,n al nssoGaL i Es dU.i-9'b�-� � 1 2.7 ACRES LOT 2, REGQROCKS ROAD EAGLE COUIM, COLORADO 604.5 SF OF INFILTRATNE AREA IN 3 GRAVELLESS TRENCHES WITH INFILTRATORS USING SERIAL. DISTRIBUTION EmrW67 I 200' SETE TOWELL JOB NO. 12042 26 SETBACK To DRY GULCH Em Jrr LOCATION OF PROPOSED OWS SCALE 1" = 60, REVISED FIGURE 2 P. +inn--7-^Jfilmra I.ICfI r2'J' . -2r MM TM. E7ne-'1 C e'ril IkITV Ck1I 1 1_1=f l TI.1 CHURCH & Associates, Inc. ENGINEERS & GEOLOGISTS July 26, 2000 David Johnson Architects Attn: Amy Conrardy 418 Cooper Street, Suite 206-B Aspen, CO 81611 Subject: Installation Observation, Proposed Tierney Residence Lot 2, Red Rocks Drive Eagle County, Colorado Job No. 12042 Ms. Conrardy, As requested,, we observed the installation of the onsite wastewater system (OWS) for the subject site on July 19, 2000. The system was designed under our Job No. 12042, dated February 29, 2000. The system includes the installation of a 2000-gallon, two -compartment, precast concrete septic tank with an effluent filter on the outlet and three chamber -trenches, using serial distribution, as indicated on Figure_ 1. Each trench had one row of 13 chambers, for a total area of 604.5 square feet. X -L I z " (!t 06 4 5� Wiz` The components of the OWS were installed in general conformance with our plans and specifications. If there are questions or if we may be of further service, please call. Sincerely, CHURCH and Associates, 0. C� 13172 Edward O. Church, P.E. EOC/trp . 2 copies sent _ .. copy to Eagle County Health Department copy to Elkhorn Excavating, Attn: Stoney, PO Box 890, Silt, CO 81652 DENVER 4501 Wadsworth Boulevard Wheat Ridge, CO 80033 CASTLE ROCK 303.660.4358 303.463.9317 Fax:303.463.9321 EVERGREEN 303.816.1455 LOVELAND 970.663.2124 2.7 ACRES LOT 2, REI EAGLE CO ROCKS ROAD NTY, COLORADO SCALE 1" = 60' 0 CLEANOUT 604.5 SF OF INFILTRATIVE AREA IN 3 GRAVELLESS TRENCHES WITH INFILTRATORS USING SERIAL DISTRIBUTION al© ONE 2000-GALLON TWO -COMPARTMENT PRECAST CONCRETE SEPTIC TANK WITH AN EFFLUENT FILTER ON THE OUTLET ORy �" Gvzc�r 200'SETBACK TO WELL OWS AS -BUILT DRAWING JOB NO. 12042 - FIGURE 1 iV/5-UU Tax 92465-104-01-002 Lot #2, Red Rock Ranch TIERNEY JOB NAME 0264 Red Rock Rd., Basalt JOB NO. JOB FOLDER mooted in U.S.A.