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HomeMy WebLinkAboutpitkin.eh.273504401013 (1993)Water Supply: ( ) Private Well, ( ) Ppring, ( ) Stream, or ( ) System (Public or Private Name: IS PROOF OF ADEQUATE WATERATTACHED? O YES or O NO HAS THIS PROJECT BEEN APPROVED BY PITKIN COUNTY? O YES or O NO Application for an individual sewage disposals stem permit is hereby submitted. The undersigned acknowledges that the above information is true and that false information will invalidate the application and any subsequent permit Issuance of the permit c oes not explicitly or implicitly imply the approval of any other permit required for construction pursuant to Pitkin County codes. No construction may be undertaken until all approvals and permits have been obta ned. The owner assumes all responsibilities in case of failure or inadequacy of this system. SIGNATURE OF APPLICAN The application becomes invalid 1 t*t $150 fee paid (,Y -Yes. Date re DESIGN CRITERIA OF SYSTEM # of Bedrooms: A—, Percol Is an Engineer Designed system shall certify the final installation to the Env LIL q"iT kar-A Date days from the date signed, This Permit is valid only for the design as specified below. ********************BELOW FOR OFFICE USE ONLY****************************** I DIVIIDUAL SEWAGE DISPOSAL SYSTEM PERMIT # `F 3o 3 i d C-17-43 Receipt # 6 O 1 SZ I Received By PS BE INSTALLED: Any changes must be submitted and approved in writing. n Rate: 13— mpi, Average Daily Waste Flow: _ 0 0 gallons. ? ( ) Yes or J4 No (All plans and specifications of the engineer shall be followed. Any changes must be approved in writing and the engmeer Health Department in writing.) Minimum Septic Tank Capacity U7-,570 gallons Absorption Area 11-400 square feet minimum ( ) Absorption Bed, ?� Absorption Field in Trenches, Gravel -less system, () Pumping/Dosing Chamber, () Absorption Pit (000 rTti�``2' 6or 80aVel-la S SYSIVOW-, 7-00 Z "A/ _('cif 04 41.1 C � fnk Stages requiring inspection: (`)(Bef re excavation, ( ) Upon completion and prior to placement of gravel, () Before covering distribution system of absorption field, (Prior to backfill of any component and any situation deemed necessary by Environmental Health Department Staff. Plans and specifications of the proposed indivi lual sewage disposal system have been reviewed and are considered satisfactory. Permission is hereby granted to the owner or his agent to perform the wore indicated above in Accordance with the Pitkin County Individual Sewage Disposal Regulations in effect on the date of issue. In addition to general provisions set forth in any attachments, this Permit is subject to the following additional terms and condition if any: APPROVED FOR ISSUE BY. CkL.. f) C�,/,'a DATE OF ISSUE: 7 z 74� The above individual sewage disposal system as been inspected fo�by he Aspen/Pitkin Environmental Health Department The owner assumes all responsibilities in case of failure -or inadeQuao/ system. Complete as -built drawing and all sp cihcatiops of as -built are iAuded with this permit. FINAL INSPECTION BY: �mr�&i4ai . DATE OF FINAL INSPECTION: I -a-f-1 90TH:UDD.JTCPC.V,'P.PERMIT.B. 1 130 SOUTH GALENA STREET - ASPEN, COLORADO 51611 ' PHONE 303.920.5070 ' FAX 303.920.5197 A'PEHD 1/94 1 PRINTED ON RECYCLED PAPER PaickZ y_. ASPEN/ IN ENVIRONMENTAL HEALTH DEPARTM APPLICATION FOR INDIVIDUAL SEWAGE DISPOSAL SYSTEM (ISDS) PERMIT Name of OWNER [LAN , T� �G� Bus. Phone # Mailing Address y Home Phone # Name. of AGENT ke k Bus. PlygRe # Z-3 S Z Mailing Address Home Phone # Copy of Permit to be Sent to: °ERMIT IS FOR: NEW, INSTAL TION, O REPAIR, (} ALTERATION NOT DUE TO FAILURE, or (} EMERGENCY USE. for permit # STREET ADDRESS of Prop rty: LEGAL DESCRIPTION of Property: lot _, block _, filing and subdiv. Size of Lot r acres Type o Structure Proposed # BEDROOMS W . # LOFTS # GARBAGE DISPOSALS # DISHWASHERS , # CLOTHES WASHERS _ Water Supply: ( ) Private Well, ( ) Ppring, ( ) Stream, or ( ) System (Public or Private Name: IS PROOF OF ADEQUATE WATERATTACHED? O YES or O NO HAS THIS PROJECT BEEN APPROVED BY PITKIN COUNTY? O YES or O NO Application for an individual sewage disposals stem permit is hereby submitted. The undersigned acknowledges that the above information is true and that false information will invalidate the application and any subsequent permit Issuance of the permit c oes not explicitly or implicitly imply the approval of any other permit required for construction pursuant to Pitkin County codes. No construction may be undertaken until all approvals and permits have been obta ned. The owner assumes all responsibilities in case of failure or inadequacy of this system. SIGNATURE OF APPLICAN The application becomes invalid 1 t*t $150 fee paid (,Y -Yes. Date re DESIGN CRITERIA OF SYSTEM # of Bedrooms: A—, Percol Is an Engineer Designed system shall certify the final installation to the Env LIL q"iT kar-A Date days from the date signed, This Permit is valid only for the design as specified below. ********************BELOW FOR OFFICE USE ONLY****************************** I DIVIIDUAL SEWAGE DISPOSAL SYSTEM PERMIT # `F 3o 3 i d C-17-43 Receipt # 6 O 1 SZ I Received By PS BE INSTALLED: Any changes must be submitted and approved in writing. n Rate: 13— mpi, Average Daily Waste Flow: _ 0 0 gallons. ? ( ) Yes or J4 No (All plans and specifications of the engineer shall be followed. Any changes must be approved in writing and the engmeer Health Department in writing.) Minimum Septic Tank Capacity U7-,570 gallons Absorption Area 11-400 square feet minimum ( ) Absorption Bed, ?� Absorption Field in Trenches, Gravel -less system, () Pumping/Dosing Chamber, () Absorption Pit (000 rTti�``2' 6or 80aVel-la S SYSIVOW-, 7-00 Z "A/ _('cif 04 41.1 C � fnk Stages requiring inspection: (`)(Bef re excavation, ( ) Upon completion and prior to placement of gravel, () Before covering distribution system of absorption field, (Prior to backfill of any component and any situation deemed necessary by Environmental Health Department Staff. Plans and specifications of the proposed indivi lual sewage disposal system have been reviewed and are considered satisfactory. Permission is hereby granted to the owner or his agent to perform the wore indicated above in Accordance with the Pitkin County Individual Sewage Disposal Regulations in effect on the date of issue. In addition to general provisions set forth in any attachments, this Permit is subject to the following additional terms and condition if any: APPROVED FOR ISSUE BY. CkL.. f) C�,/,'a DATE OF ISSUE: 7 z 74� The above individual sewage disposal system as been inspected fo�by he Aspen/Pitkin Environmental Health Department The owner assumes all responsibilities in case of failure -or inadeQuao/ system. Complete as -built drawing and all sp cihcatiops of as -built are iAuded with this permit. FINAL INSPECTION BY: �mr�&i4ai . DATE OF FINAL INSPECTION: I -a-f-1 90TH:UDD.JTCPC.V,'P.PERMIT.B. 1 130 SOUTH GALENA STREET - ASPEN, COLORADO 51611 ' PHONE 303.920.5070 ' FAX 303.920.5197 A'PEHD 1/94 1 PRINTED ON RECYCLED PAPER ASPE0ITKIN ENVIRONMENTAL HEALTH DEPOENT FINAL SYSTEM DESIGN `-INAL SPECIFICS OF THE SYSTEM INCLUDED UNDER THIS PERMIT: ;As -Built Conditions) zx Type of Tank or Treatment Unit: (pAtAt ___ Tank Capacity: 104gallons Type of Absorption Field:/ Absorption Area: square feet DESCRIPTION, CONDITIONS, AND SPECIFICATIONS OF SYSTEM DESIGN: FINAL AS -BUILT PLOT PLAN: i-INAL INSPECTIQtq.m•-' ?? DATE OF INFECT]©N: .r ' �Citt:UDD:JTCPC:.7P:PERAIIT.Q. 1 4'" Jv 130 SOJTH GALENA STREET • ASPEN, COLORADO 61611 ' PHONE 303.920.5070 - FAX 303 920 5197 PRINTED ON RECYCLED PAPER r r . r i w rf T., de�� J 1 /AcIJRl,- t WIw BUILDING SUPPLY, INC. qU w P.O. BOX 3053 800-640-2059 Mtiersn GLENWOOD SPRINGS, CO 81602 FAX 303-945-8107 DATE: JOB: 10 + MA -SHIELD-" WINDOWS & PATIO DOORS FOR Cl ASPEN46PITKIN0' 0 1_ O EIVVIROK ENTAL HEALTH OEPARTN VT ��� f 3 40 INDIVIDUAL SEWAGE DISPOSAL PERMIT NO. 3 0:3 '� C yg C� TYPE OF PERMIT: 'ftConstruction ( )Emergency Use ( )Repair Work,(Pievious Permit 1 .) ( )Alteration of an existing system, / or installation (previous Permit 1 ( )Use Permit as a result of Pale ( )Other: ISSUED TO: DATE OF ISSUE Z3 Owner .-Joe- f R c Home Phone 2 0-1300 Business Phone Mailing Address 1-; S:� S! �rf� �t S !✓�^. Agent keN 6-a ✓' v i k Phone �71) �i (� Sy LI�,� Ma ilin g Address Sewage Disposal System Work to be performed by This permit valid -only for premises location by the -following logaldeucriptiont LOT SIZE WATER SUPPLY �� vi", t y� � . AVERAGE PERCOLATION RINE This Individual Sewage Disposal Permit is granted with regard to the following user�y(n 2 �4Y���`/ 1 Ca ✓e Number oft Dodicoms _ Lofts Garbage Disposals Dishwashers Clothes Hashers CALCULATED AVERAGE DAILY HASTE LOAD too G GALLONS. THE NATURE OF THE SYSTEM! INCLUDED UNDER THIS PERMIT: of Tank or Treatment Units WfiG" Tu ✓1 Tank. Capacity I��O _Gallon Minimum thud of rinal Disposals Abs gji,)A f.`e IL . Absorptiop . Area square Peet Minimum .cription (including brand name„ if any) of other equipment or appurtnaneest Z �� 2 (/2✓1G('l �{� :then Conditions or Spccificatio�st - �' T Akw Perms tc5fS wrIf ;Joe- rtty� . I.>z fie (A chill be s} d t tea Z.-Avel,✓ (�rc�,`�� fnole wilt STAGES REQUIRING INSPECTION BY THE HEALTH DEPARTMENT: (j[fnefore Excavation ( )Upon completion of excavation and prior to placement of gravel ( )Before covering distribution system of absorption field Prior to backfill of any component ( lother, Specify: Plans and specifications of the proposed sewage disposal system have been reviewed and are consiAcred satisfactory. Permission is hereby granted to the owner or his agent to perform the work indicated above in accordance with the Pitkin County Individual - Sewa,e Disposal Re-}ulations in effect on the date of issue. In addition to general provisions set forth or, the reverse her_of, this Permit is subject to the following additional terms and conditions; APPROVED FOR ISSUE 4YI —LLIJ� (title) ��� �%1��►�� 71%c ahivc individual nc"ago disposal syntem inntallcd by hes b cn in:cpcctcd for use by a representative cf the tment. Tho ,,not as•tiur..oa a reehonsibility in case of failure or inadequacy of thiu sewave disposal ayatem. complete ax -built droving attachod. DATE OF FINAL.INSPECTION BY: 130 South Galena Street k-/ TITLE Aspen, Colorado E31611 303/820-6070 ASPEN+PITKIN ENVIRON.,1ENTAL HEALTH OEPARTML-NT P,% 3S -&N --0/-0/3 APPLICATION FOR AN INDIVIDUAL SEWAGE DISPOSAL- PERMIT Name of OWNER Address of OWNER PIS tJL Name of APPLICANT,�j l 3�1✓(� - PHONE L - (15lM PHONE ?ERMIT TO BEs ieked tip ( )Mailed tot TYPE OF PERMIT: KNew Installation ( )Repair jOwner ( )Applicant i )Emergency Use ( )Alteration NOT due to failure Jl?ION OF PROPOSED SYSTEM: Legal Description y� �.ot Block Filing Subdivision i-{�j Oik�l �k -.Size of Lot acres TYPE'OF STRUCTVREt (,4tingle Family Dwelling ( )Othert re you plan any further additions to the residence? ( )YES ( )NO go. of bedrooms 4" No. of Lofts No. Of Garbage Disposals No: of Automatic Dishwashers U:o. of Automatic Clothes washers �•. KATER SUPPLY: ( )Private well, Depth or < TPublic, Name of System I- ( )Spring ( )Stream or Creek OF INDIVIDUAL SEWArE DISPOSAL SYSTEM PROPOSED: ' Septic Tank/Absorption Field ( )Aeration Plant/Absorption Field ( )Composting Toilet ( )Incineration Toilet ( )Mound ( )Recycling, potable use ( )Recycling, other use ( )Vault Privy ( )Other: The'initial site inspection must be arranged with the Aspen/Pitkin' Environmental Health Department (925-2020. 8:30-9:30 a.m.) before a permit can be issued. The individual sewage disposal permit must be issued before a building permit can be obtained. TIKAL INSPECTION APPROVAL MUST BE GIVEN BY THE ASPEN/PITKIN ENVIRONMENTAL HEALTH DEPARTMENT. PRIOR TO BACKFILLING ANY PORTION OF THE SYSTEM. Application for an individual sewage d se ermit is hereby submitted. The undersigned acknowledge■ that the above information true and that false informatl wi 1 invallda4e the application and any subsequent permiCt�. Signature of Applicant ` DATE /n / 7 l.1> (This application becomes. invalid 12 months frcm the above date.) NOTE: PLOT PLAN must be filed with this application. Please locate the following items by measured distances: 1. Property lines and dimensions. 2. Proposed and existing water wells on subject property and adjacent property. 3. Domestic water service lines. <. Proposed and existing buildings, driveways, and other structures. 5. Streams, lakes, ponds, irrigation ditches, and other water courses. 6. Proposed and existing individual sewage systems on subject property. SUBMIT A REVISED PLOT PLAN PRIOR TO CONSTRUCTION IF INSTALLATION IS TO BE CHANGED FROM ORIGINAL PLAN. - The undersigned hereby acknowledges receipt of this individual sewage disposal permit /application and aI i ea 1 t amour. of S © ,� , Receipt Number i7� ek I , Date Fee Received �O`L��I '� by istrati o Officer 130 South: Galena Street Aspen, Colorado 61691 303/920-8070 l Neison Environmental &YVastewater Solutions, Ltd E W June 15, 1993 S Mr. Ken Garvik 0032 Park Ave. Basalt, CO 81621 rJUN 1 6 1943 � ENVIRONMENTAL HEALTH ASPEN/PITKIN Subject: Soils Evaluation and Percolation Test for Individual Sewage System Design for the Cohen Residence, Lot 13, East Owl Creek Subdivision, numbered as 881 Cluny Road Dear Ken, As requested, Nelson Environmental and Wastewater Solutions, Ltd., performed a soils study and percolation tests on the subject property to design a septic system for the proposed residence. We conducted this study according to Section 4-5 of Pitkin County Regulations Individual Sewage Disposal Systems on Monday, June 14, 1993. We have based our recommendations on the subsurface conditions encountered. Please furnish this letter to the Aspen/Pitkin Environmental Health Department at your earliest convenience to obtain a permit to construct this individual sewage system. Proposed Construction: The planned residence is a four bedroom, five and one-half bathroom, three level house. The property is served by a subdivision water supply from wells drilled into the shallow alluvium along the creek bed across the road. The lot is approximately 5 acres in size. Site Conditions: The site is a lot adjacent to the Spring Creek Valley drainage. Spring Creek lies to the West about 300 yards beyond the property line and is about 40 feet lower in elevation. The ground surface, which appears natural in the proposed area of the absorption field, slopes gently to the Northwest at a 15% grade. There is an irrigation ditch in the immediate area, bisecting the lot and between the building site and the proposed absorption area. This ditch is to be culverted and lined as part of the sight development, and this plan should eliminate any seepage. Subsurface Conditions: A soil profile pit has not yet been dug. The soil texture encountered in the percolation test holes was a P.O. Box 6961 Snowmass Village, CO. 81615 Office (303) 923.3289 Home (303) 923.2766 Cohen Residence Soils Evaluation and Test for Individual June 15, 1993 Page 2 loam about 19 inches some loose cobbles, intermixed with the Percolation Sewage System Design thick and a clay loam to 3 feet. There were ranging in diameter from two to six inches, soil matrix. The subsurface soil conditions were evaluated with the standard Percolation test procedures at the approximate location shown on Figure 1. The set of test holes was hand dug to a depth of three feet. Several inches of gravel was placed on the bottom of each hole. The subsoil, in which the percolation testing was done, consisted of a clay loam with some cobble and rock fragments. These dark brown to tan soils were well consolidated, and showed some tendency to swell. Some smearing and compaction was observed in percolation test holes prior to roughing the sidewalls and bottom. one of the test holes filled with water from apparent seepage from the ditch. It was not measured. Percolation Testing: Percolation testing was performed in the proposed absorption area west and slightly north of the staked building foundation area. Three shallow holes were hand dug to a total depth of between thirty-four and thirty-six inches. As mentioned, the test hole closest to the ditch was saturated and could not be measured. Water was added to the two other test holes by this company every two hours for approximately eight hours before beginning the percolation test measurements. We made an effort to keep the gravel on the bottom of each test hole submerged. The results of the percolation testing are presented in Table I. These results indicate the clayey loam soils have an average percolation rate of 55 minutes per inch and are marginally acceptable for a conventional infiltration design for the on-site sewage system. Limitations: This report has been prepared according to generally accepted practices in this area for use for sewage disposal design purposes. The conclusions and recommendations submitted in this report are based upon data obtained from our site visits at the location indicated. There is some possibility that the nature and extent of variations in the subsurface soils across the site may not have been evident at the time of this investigation, and may need additional evaluation if further excavation reveals conditions different from those described. This office should be advised of any unusual situations as soon as possible so we may reevaluation of our recommendations. C Cohen Residence Soils Evaluation and Percolation Test for Individual Sewage System Design June 15, 1993 Page 3 If you have questions or if we may be of further assistance, please call the office. Sincerely, Robert F. Nelson, R.E.H.S. President Reviewed ,ABy: Vv J y ammond, P.E. Schmeuser, Gordon, Meyer Engineering dot n!T SSI C FIGURE 1 Cohen Residence Lot 13, East Owl Creek Subdivision 881 Cluny Road :ter ' ,�' n &4 KC /40 u S E -OCA`M 17 TABLE I PERCOLATION TEST RESULT FORM Cohen Property 881 Cluny Road - Lot 13, East Owl Creek Subdivision Date of Percolation Test: 6/14/93 Length Depth at Depth at Average Hole Hole of Interval Start of End of Percolation No. Depth(in.) (Minutes) (Inches) (Inches) Rate(Min./Inch) 1 36 30 22 3/4 21 3/4 (refill) 10 23 22 5/8 (refill) 10 23 22 5/8 (refill) 10 23 3/16 22 13/16 (refill) 10 23 1/4 22 13/16 (refill) 10 23 1/4 22 7/8 32 2 34 30 21 20 3/4 (refill) 25 21 20 5/8 (refill) 15 21 20 13/160 80 3 35 Not run - Seepage from Irrigation Ditch Cohen Property 881 Cluny Road - Lot 13, East Owl Creek Subdivision Date of Percolation Test: 6/14/93 40 Nelson Environmental & Wastewater Solutions, RA E W June 25, 11I993 S' Mr. Ken GaTvik 0032 Park Ave. Basalt, CQ 81621 1 Subject: Additional Soils Evaluation for 13, East awl Creek Subdivision, numbered Dear Ken, the Cohen Residence, Lot as 881 Cluny Road As you requested, Schmeuser, Gordon Meyer and Nelson Environmental and Wastewater Solutions, Ltd., have performed an additional inspection of the subject property. We have based our recommendations on the subsurface conditions encountered. Please furnish this letter to the Aspen/Pitkin Environmental Health Department at your earliest convenience to continue the permit process to construct this residence. Site Conditions: As mentioned in previous correspondence, there is an irrigation ditch in the immediate area, bisecting the lot and between the building site and the proposed septic system absorption area. This ditch is to be culverted and lined as part of the sight development. However, until that is done, the soil evaluation and additional percolation testing cannot be completed. We believe this plan should eliminate any seepage from the ditch and make sufficient area available for a sewage absorption system. Once the ditch is lined, the mimimum setbacks from the absroption area can be met. There is indicaion that the final percolation rates are going to be acceptable, as the rates measured in the initial percolation testing were considered acceptable. The lining of the ditch should eliminate any interference with water absorption in the area. The ditch, however, now presents a limiting factor, and if not lined, would eliminate the site below the ditch from consideration as an absorption area. Limitations: This report has been prepared according to generally accepted practices in this area for use for sewage disposal design purposes. The conclusions and recommendations submitted in this report are based our site visits to the property. There is some possibility that the nature and extent of variations in the subsurface soils across the site still may not be evident at the time of this investigation. Additional evaluation is needed when the excavation work is completed and the ditch lined. This office should be advised of the situation as soon as possible so we may reevaluate some of our recommendations regarding septic system design. P.O. Box 6961 Snowmass Village, CO. 81615 Office (303) 923.3289 Home (303) 923.2766 If you have questions or if we may be of further assistance, please call the office. Sincerely Robert F. Nelson, R.E.H.S. President R e i e we d UV, a Hammond, P.E. Schmeuser, Gordon, Meyer Engineering oma= �a Nelson Enviro _ mental & Wastewater Solutions, Ltd E July 14, 1994 W Mr. Ken Garvik S Garvik Constru ion Co. 0032 Park Ave. Basalt, CO 81621 Subject: Soils Evaluation and Percolation Test for Individual Sewage System Design for the Cohen Residence, Lot 13, East Owl Creek Subdivision, numbered as 0881 Cluny Road Dear Ken, As requested, Nelson Environmental and Wastewater Solutions, Ltd., performed a soils study and percolation tests to design a septic system for the proposed residence addition. We conducted this study in accordance with Section 4-5 of Pitkin County Regulations on Individual Sewage Disposal Systems. We have based our recommendations on the subsurface conditions encountered. We will furnish this letter to the Aspen/Pitkin Environmental Health Department in order to obtain a permit to construct this individual sewage system. Proposed Construction: The planned residence under construction is a relatively large one to two-story house of four bedrooms and five and one-half bathrooms. The property is served by the treated water supply furnished by the subdivision. The lot is approximately 5 acres. Low water -use toilet fixtures are to be provided in all bathrooms. Site Conditions: The site is in the East Owl Creek Subdivision adjacent to the Spring Creek Valley drainage. Spring Creek is to the West about 300 yards from the proposed septic system location and about 40 lower in elevation. The ground surface which appears natural in the proposed area of the absorption field slopes to the Northwest at a 15% grade. There is an irrigation ditch traversing the lot between the house and the planned absorption area location. This ditch has been lined with culvert across approximately 50% of the building envelope since our initial investigations last year. Subsurface Conditions: A soil profile hole was excavated on June 27, 1994 about 10 feet from the proposed absorption area and fifty feet below the irrigation ditch. It was dug to a depth of eight feet. The excavation encountered some ground water or seepage from the ditch at 7 3/4 feet. Bedrock was not P.O. Box 6961 Snowmass Village, CO. 81615 Office (303) 923.3289 Home (303) 923.2766 Cohen Residence Soils Evaluation and Percolation Test for Individual Sewage System Design 07/14/94 Page 2 encountered in the excavation and is deeper than eight feet from the surface of the ground. The soil texture generally was a sandy clay, with some increase in the clay content with depth. The subsurface soil conditions were evaluated with the standard percolation test procedures at the approximate location shown on Figure 1. The test holes were hand dug and several inches of gravel placed on the bottom of each hole. The subsoil in which the percolation tests were run, consisted of approximately 15 to 20 inches of loam topsoil grading to a sandy clay loam to three feet and extending to the depth of percolation test holes, thirty four to thirty-six inches. This grayish soil was well consolidated, and showed little tendency to swell, although some smearing and compaction from the excavation equipment was observed in the profile hole below four feet. The depth of the loam topsoil increased in the holes prepared toward the south property line. Percolation Testing: Percolation testing was performed in the approximate location of the proposed absorption field area Northwest of the building. The three shallow holes were hand dug to a depth of thirty-four to thirty-six inches. The percolation holes were pre-soaked the morning of testing. Water was added approximately every two hours before beginning the percolation test. There was water remaining in only one of the percolation test holes (113) when we arrived at the site about 7:30 p.m. The results of the percolation testing are presented in Table I. We have also included the preliminary results for the tests conducted last year. These results from the latest set of test holes, indicate the sandy clay soils have an average percolation rate of 13 minutes per inch and would be acceptable for a conventional infiltration design for the on-site sewage system. However, in light of the results, it seems more conservative for design purposes to discard the results of two of the test holes, the fastest and slowest, and average test holes # 1, #113, and #2B to calculate the rate for absorption area required. This average percolation rate of 22 minutes per inch and would still be acceptable for a conventional infiltration field design and account for the variability in the results of the percolation tests over the proposed septic system leach field. Limitations: This report has been prepared according to generally accepted practices in this area for use for sewage disposal design purposes. The conclusions and recommendations submitted in this report are based upon data obtained from our site visits at the location indicated. There is some possibility that the nature and extent of variations in the subsurface soils across the site may not have been evident at the time of this investigation. If further excavation reveals conditions different from those described, additional evaluations may be necessary. This office should be advised of any unusual situations as soon as possible so that we may reevaluate the 3 Cohen Residence Soils Evaluation and Percolation Test for Individual Sewage System Design 07/14/94 Page 3 recommendations. If you have questions or if we may be of further assistance, please call the office. Sincerely, Reviewed By: (7 Robert F. Nelson y H ond, P.E. President SG Engineering Attachments cc: Aspen/Pitkin Environmental Health 26078 �-7f.gj Nelson Environmental & Wastewater Solutions, Ltd W PERCOLATION TEST RESULT FORM S Hole Length Depth at Depth at Drop in Average Hole Depth of Interval Start of Interval End of Interval Water Level Percolation No. (in.) (Minutes) (Inches) (Inches) (Inches) Rate(Min./Inch) 113 36 6 615/16 65/8 5/16 6 65/8 63/8 1/4 6 63/8 6 1/8 1/4 6 61/8 513/16 5/16 6 5 13/16 59/16 1/4 24 2B 34 6 31/4 211/16 9/16 6 211/16 21/8 9/16 6 21/8 13/8 3/4 (refill) 6 3 1/16 29/16 1/2 6 29/16 2 9/16 11 313 35 6 11/4 1/16 13/16 (refill) 6 31/16 21/16 1 6 21/16 1 1 1/16 (refill) 6 3 1/2 23/16 15/16 6 23/16 15/16 1 1/4 5 (Some shallow rodent burrowing noted) Cohen Residence Lot 13, East Owl Creek Subdivision 881 Cluny Road Date of Percolation Test: 05/21/94 P.O. Box 6961 Snowmass Village, CO. 81615 Office (303) 923.3289 Home (303) 923.2766 Nelson E W S & Wastewater TABLE I Ltd PERCOLATION TEST RESULT FORM Length Depth at Depth at Average Hole Hole of Interval Start of End of Percolation No. Depth(in.) (Minutes) (Inches) (Inches) Rate(Min./Inch) 1 36 30 223/4 213/4 (refill) 10 23 225/8 (refill) 10 23 225/8 (refill) 10 233/16 22 13/16 (refill) 10 231/4 2213/16 (refill) 10 23 1/4 227/8 32 2 34 30 21 203/4 (refill) 25 21 205/8 (refill) 15 21 2013/16 80 3 35 Not run - Seepage from Irrigation Ditch Cohen Property 881 Cluny Road - Lot 13, East Owl Creek Subdivision Date of Percolation Test: 6/14/93 P.O. Box 6961 Snowmass Village, CO. 81615 Office (303) 923.3289 Home ($03) 923.2766 I S k .1w Nelson Environmental & Wastewater Solutions, Ltd E Property Aodress'. 0881 Cluny Road W S Legal Desgiption: Lot 13, East Owl Creek Subdivision Property Owner: Name Cohen Contractor: Name: Garvik Construction Address:0032 Park Ave. Basalt, CO 81621 Phone: 927-4823 Saturation and Swelling o Smeared surfaces removed X Yes o Gravel Added X Yes To a 4" Depth o Date and Time presoak water added 5/21/94 (a, 9:00 a.m. o Amount of presoak water added 18 gallons per test hole o Water remaining in holes after presoak? Hole 1: X Yes _ No Hole 2: _ Yes X No Hole 3 _Yes X No Percolation Rate Measurement Hole 113: 24 minutes/inch Hole 213: 11 minutes/inch Hole 3B: 5 minutes/inch AVERAGE 13 minutes/inch Excavating Contractor: Name: Stutsman-Gerbaz Address:0755 Gerbazedale Dr. Snowmass, CO 81654 Phone: 923-2734 Groundwater. o Encountered at 7 3/4 ft. o Estimated depth to high seasonal water if not encountered- N/A o Is area believed to be subject to seasonal fluctuations which could result in a seasonal water table? X Yes _ No Slope in absorption area 15% to the NW Bedrock o Not Encountered o Estimated depth if not encountered -90 feet o Type of bedrock: _Sandstone _Claystone X Siltstone Other: X Fractured Weathered o Is bedrock believed to be permeable? X Yes _No I certify that the above information is correct and complete to the best of my knowledge and that all tests were performed in accordance with the provisions of the Pitkin County Code Title X, Sections 4-5.1 through 4-5.7.(Pitkin County Individual Sewage Disposal Regulations) Robert F. N�lson President by: bmmon-d, P.E. C�t ueser, Gordon Meyer, En ' ~s 26078 "U�N A P.O. Box 6961 Snowmass Village, CO. 81615 Office (303) 923.3289 Home (303) 923.2766