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Home My WebLink Aboutpitkin.eh.264524310001 (1994)ddft ASPEN ENVIRONMENTAL HEALTH DEPAR, .RENT APPLICATION FOR AN INDIVIDUAL SEWAGE DISPOSAL SYSTEM (ISDS) PERMIT Name of OWNER PLY d Fa -rd ,ra Ade- Bus. Phone # Mailing Address A&zo/7x 3030 fodlar ke , ,�t_ T)a1 inn . W11/ Home Phone # f-23 -/ r3' Name of AGENT lill & rrl,uan (ArLr-riur,/I ea?3 Ar - &C Bus. Phone # Mailing Address Ydf 1i4,ge-, j s w,,7 Home Phone # (Copy of Permit to be Sent to:_ Ail rf"adz2 PERMIT IS FOR: (.�/NEW INSTALLATION, () REPAIR, () ALTERATION NOT DUE TO FAILURE, or () EMERGENCY USE. for permit # STREET ADDRESS of Property: Y'710 AiL Ltd%lc/CaJ lac! LEGAL DESCRIPTION of Property: Wi,ldcaf 1l�a.'t C lot block _, filing and subdiv. Size of Lot acres Type of Structure Proposed # BEDROOMS , # LOFTS , # GARBAGE DISPOSALS i , # DISHWASHERS # CLOTHES WASHERS �. Water Supply: O Private Well, O Spring, O Stream, or (of System (Public or Private Name: WildrfL f /q a,? h 6J t n IS PROOF OF ADEQUATE WATER ATTACHED? () YES or () NO HAS THIS PROJECT BEEN APPROVED BY PITKIN COUNTY? () YES or () NO Application for an Individual sewage disposal system 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 does 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 obtained. The owner assumes all responsibilities In case of failure or Inadequacy of this system. SIGNATURE OF APPLICANT Date The application becomes invalid 120 days from the date signed. This Permit is valid only for the design as specified below. ++++++++++++++««++++++++++t+++BELOW FOR OFFICE USE ONLY***++++++++++++++«+«««««+««««« INDIVIDUAL SEWAGE DISPOSAL SYSTEM PERMIT # $150 fee paid (+/ Yes. Date received Receipt # _ / % ti� Received By DESIGN CRITERIA OF SYSTEM TO BE INSTALLED: Any changes must be submitted and approved in writing. # of Bedrooms: 6- , Percolation Rate: L_L_ mpi, Average Daily Waste Flow:ell-1116,gallons. Is an Engineer Designed system needed? () Yes or (,�/No (AIL plans and specifications of the engineer shall be followed. Any changes must be approved in writing and the engineer shall certify the final installation to the Environmental Health Department in writing.) Mi um Septic Tank Capacity —1'7',, `I gallons Absorption Area / ri. 3- square feet minimum ( 'Absorption Bed, () Absorption Field in Trenches, Gravel -less system, () Pumping/Dosing Chamber, () Absorption Pit his o2e,+- ;. w s re,)%Scd 4o je-4J 4AL tIM19z i^ loI!afi,) -16' W cXP�'c s stem end �- a rgfrrak- �rC +6t. '4 M;.�; unl O� IY33 4t 'ofa..bsorPh'u'1 bed is reC�reJ UJh%oh re�tl5 Q �D% rcrlu��i`a-� r.I ►i cciv✓ n t5 or 8o ur..'1s. ff.� eh ,',W[ r-clesityncd 30feA& avrt-s ased rohich recora�nv�deci tages re uiring inspection: () Before excavation, () Upon completion and prior o placem nt of gravel, fore covering distribution system of absorption field, (.yrjor to backfill of any component and any situation deemed necessary by Environmental Health Department Staff. Plans and specifications of the proposed Individual sewage disposal system have been reviewed and are considered satisfactory. Permission is hereby granted to the owner or his agent to perform the work 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 conditions if any: F APPROVED FOR ISSUE BY: i/�c-�-c- �i/ !► _ (DATE OF ISSUE: The above individual sewage disposal system has been inspecte or use by y e spen/Pitkin Environmental Health Department. The owner assumes all responsibilities in case of failure or inadequacy of this system. Complete as -built drawing and all specifications of as -b ilt are included with this permit FINAL INSPECTION BY: DATE OF FINAL INSPECTION: w2 (o - y1q- :BOTH:UDD:JTCPC:WP:PERMIT.B.1 30 SOU GA ENA STREET • ASPEN, COLORADO 61611 • PHONE 303.920.5070 . FAX 303.920.5197 AIPEHD 1194 PRINTED ON RECYCLED PAPER a n &rf& 0� 1'74 Y '12-' x IV d -b svr11,°.-n bed or � f �ra4,iaye. 5wa-4'o 1,c_. cr'ea,4-ecl fa keep run -o# 4%4c ,u�2cfi.�� &u leach,'efd area. ASP[ ITKIN ENVIRONMENTAL HEALTH DEPT MENT FINAL SYSTEM DESIGN zINAL SPECIFICS OF THE SYSTEM INCLUDED UNDER THIS PERMIT: 'As -Built Conditions) l We of Tank or Treatment Unit: e0, -7&r/44_, Tank Capacity: ? 000 gallons /0O -a "Ya(1vi i L Type of Absorption Field: lnIfin bec! Absorption Area: 1*7(py square feet bC S�iCS DESCRIPTION, CONDITIONS, AND SPECIFICATIONS OF SYSTEM DESIGN: ado' li1v tA50,Pficn bed wi4& c!<a.�—�w#s eue /Uu r #L X `7�Z r it d 50�® I?` , X GI w i 44, C{ 8 i ��rq i{L ltn i 7 s level diso-.lt"�eln liras j e`.Z S� Gi?'LYI. fXlr iS FINAL AS -BUILT PLOT PLAN: FINAL INSPECTION BY: - Ai.G- � DATE OF INSPECTION: � T : BO T N: UDD:JTC PC: WP: PERMI T. 6. 1 130 SOUTH GALENA STREET • ASPEN, COLORADO 81611 - PHONE 303.920.5070 ` FAX 303.920.5197 PRINTED ON RECYCLED PAPER M6 Table 3 -)tic Tank Capacity Bast- n Number of Bedrooms Minimum Effective Liquid 11 of Bedrooms Tank Capacity (gallons) I or less 750 1000 4 1250 Each additional bedroom 250 — 'lainim in number of bodrooms is two (21. r Absorption area for seepage pits is ligured as effective sidewatl area beneath the inlet. 'Unsuitable for seepage pits if percolation rate is over thirty (30) minutes per inch. -Unsuitable for seepage beds if peneulation rate is over one inch (1-1 in thirty (301 minutes `Unsuitable for conventional absorption systems. L2 = 1t fs, A Z. �3 d 0 11 &j.,,4-00 ik3 `1. �� ►fir bars = 1133 1�1 80 Ur»1s `1h in iMarn) Tabic 4 Maximum Loading Rates of Effluent Volume for Soil Absorption Systems Required Bottom Required Bollom Percolation Rale Typical Soil Test.,- Maximum Loading Rate (minulesAnch) Soil Class (Appendix 2) (galJsq.flJday) ---- oto— t Sand 1.30 111-20 II Sandy Loam to Loam _ .72- - -,-, Z1-30 _, w Loam _ .50 3t -40 jv Loam to Silly Loam _ .40 41-60 v Clay Loam .30 Ore, 60 vl Clay 20 'lainim in number of bodrooms is two (21. r Absorption area for seepage pits is ligured as effective sidewatl area beneath the inlet. 'Unsuitable for seepage pits if percolation rate is over thirty (30) minutes per inch. -Unsuitable for seepage beds if peneulation rate is over one inch (1-1 in thirty (301 minutes `Unsuitable for conventional absorption systems. L2 = 1t fs, A Z. �3 d 0 11 &j.,,4-00 ik3 `1. �� ►fir bars = 1133 1�1 80 Ur»1s `1h in iMarn) Required Square Footage of Soil Absorption Systems Required Bottom Required Bollom ): Absorption Area in sq. It Absorption Area In sq. ft Required Sldewall Area' - I! Per Bedroom' for Per Bedroom' for In sq. It. per Bedroom' to, is Soil class Standard Trenches Seepage Beds Seepage Pits I. 165 215 iB5 If 300 400 335 I BI 440 575 460 ' IV 550 v 740 VI ' , 'lainim in number of bodrooms is two (21. r Absorption area for seepage pits is ligured as effective sidewatl area beneath the inlet. 'Unsuitable for seepage pits if percolation rate is over thirty (30) minutes per inch. -Unsuitable for seepage beds if peneulation rate is over one inch (1-1 in thirty (301 minutes `Unsuitable for conventional absorption systems. L2 = 1t fs, A Z. �3 d 0 11 &j.,,4-00 ik3 `1. �� ►fir bars = 1133 1�1 80 Ur»1s `1h in iMarn) 08/30/1994 09:12 303923276 BOB NELSON, NEWS, "r) PAGE 02 .person Bnvir9onrnentcd & Wastewater Solutions, Ltd. E August 26, 1994 W Mr. Boone Caudill Rid Harriman Construction 409A Aspen Airport Business Center Aspen, CO 81611 RE: Homestead Parcel 4, Wildcat Ranch, numbered off of Lake Wildcat Road Dear Boone: As requested, Nelson Environmental and Wastewater Solutions, Ltd., performed another soils study and percolation tests to relocate the proposed system to the area of the property further from the ponds and in an area where the absorption field can be installed shallower. We have designated this area as Group 3. It is our opinion that a septic system for the proposed residence can be constructed in this area and work effectively. We conducted this study according to Section 4-5 of Pitkin County Regulations Individual Sewage Diggglij Systems on August 23, 1994. 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. Ptypond Qngruction: The planned main residence is a relatively large multi-level house with a caretaker unit. There is a total of six bedrooms and eight baths in the residence. Site Conditions: The property is served by the treated surface water supply furnished by the subdivision. The site is a lot in the Wildcat Ranch PUD above and to the north of Wildcat Reservoir. The lot is large, and the building envelope approximately 15 acres. The ground surface, which appears natural in the proposed area of the absorption field, isin a draw about 400 feet below the construction site and slopes gently to the West and Southwest at a grade of approximately 20% to 25%. There are no irrigation ditches or obvious drainages in this area. A soil profile pits was excavated 1.0 feet from each of the test holes in the proposed absorption area labeled as the Group 3 alternative. The profile excavation was dug to a depth of eight and one half feet. The excavation encountered no ground water, and no bedrock was present within eight feet of the surface of the ground. The soil texture within the Group 3 profile hole was a silt loam topsoil to sixty inches deep, grading into a sandy clay with some increase in the clay content with depth. There was some moisture content in the soils in each profile hole. There was some smearing and compaction noted from the pressure of the excavating equipment used to prepare the profile hole below six feet. P n. Rnv r%QAI C,nnwrriaaa Vtllaaa_ M_ 9161; O) lea (.AAA) 9T; -;2R9 Hnme 0103) 923- 2766 ~08/30/1994 09:12 303923276f BOB NELSON, NEWS,'---) Hyde Residence Additional Group 3 Soils Evaluation and Percolation Tests for Individual Sewage System Design August 26, 1994 Page 2 Perculation Test: PAGE 03 The subsurface soil conditions were evaluated with the standard percolation test procedures at the approximate location shown on Figure 1. The twelve inch diameter test holes were hand dug at the bottom of backhoe excavations, and several inches of gravel placed on the bottom of each hole. The group 3 percolation test holes, with depths varying from fifty-three to sixty eight inches, were located in soils characterized as a silty loam. The percolation holes were pre-soaked the morning of testing, eight hours before the percolation test was begun. After the initial fillings, water was continuously added approximately every thirty minutes for the immediate four hour period before beginning the percolation test. There was some water remaining in all of the percolation test holes when the tests were begun. The results of the percolation testing are presented in 'fable I. These results indicate the loans topsoils located in the this group in the draw have an average percolation rate of 14 minutes per inch and would be 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 v4dent 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 recommendations. If you have questions or if we may be of further assistance, please call the office. Sincerely, Reviewed By: �POp'REG//STF Robert F. Nelson Dan Cokley, P.E. 2^.,7, President SGM Engineering '�' ° ', 'n . ...;r . cc: Schmeuser, Gordon, Meyer Engineering0.` 0408;3e/1994 09:12 303923276E BOB NELSON, NEWS,1 �') PAGE 04 -tGugc 1 nx FAX St FAX t. PH3W t: 1-k Qe P,'4106 -may 08/30/1994 09:12 303923276 BOB NELSON, NEWS,') PAGE 05 NV Nelson Er"ronmenud & Wastewater Solutions, RA ?A w TABLE I S PERCOLATION TEST RESULT FORM Hale 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) GROUP 3 1 53 10 71/2 6314 314 10 63/4 59/16 13116 10 59/16 45/8 15/16 10 45/8 3 11/16 15/16 11 2 68 10 8 1/8 75/16 13/16 10 75/16 67/16 7/8 10 67/16 53/4 11/16 10 53/4 5 1/16 11/16 15 3 56 10 5 315/16 11/16 10 3 15116 3 15/16 10 3 21/4 3/4 10 2114 15/8 5/8 16 Hyde Property Lot 4, Wildcat Ranch Subdivision Date of Percolation Test: 08/23/94 PTV Rmc 6961 Snnwmapaa Village. CO. 91615 Office MM 923.3289 Home (30319232766 08/30/1994 09:12 303923276 BOB NELSON, NEWS,' PAGE 09 Nelson Lnvdronmental & Wastewater Solution Ltd E Property Address: 4710 Lake Wildcat Road W Legal Description: Home§tead Tract 4 Wildcat Ran ubdivision S Property Owner: Name Pitt and Barbara Hyde Contractor: Name Harriman Construction Address 409A AABC Aspen, CO 81611 Phone 925-1161 Saturation and Swelling o Smearc4 surfacxs removed X Yes o Gravel Added X Yes To a 3" Depth o Date and Time presoak utter added 08/23/94 @, 10:45 a.m. o Amount of presoak water added 20 to 25 gallons /hole o Water remaining in holes after presoak? Hole I _X Yes _fix Hole 2: X Yes _ No Hole 3 _& Yes _ No Percolation Rate Measurement Hole 1: 11 minutes/inch Hole 2: 15 minutes/inch Hole 3: 16 minutes/inch AVERAGE. 14 minutes/inch (Group 3) Excavating Contractor: Name Aspen ElIrthmoving Address28450 H' 82 Basalt. CO 8151 Phone 927-4744 Groundwater. o Not Encountered to 8 ft. o Estimated depth to high seasonal water if not encountered- 100 feet o Is area believed to be subject to seasonal fluctuations which could result in a seasonal water table? _ Yes ,2. No $lope In absorption area 20% to the WSW Bedrock o Not Encountered o Estimated depth if not encountered -20 ft. o Type of bedrock: Sandstone Claystone Siltstone _&O dkr: Shale 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 45.1 through 4-5.7.(Pitkin County Individual Sewage Disposal Regulations) Robert F. Nelson President Reviewed by: Dan Cokley, P.E. Schmueser, Gordon Meyer, REG/s 0, TO: NAME: _ ADDRESS: PHONE: FROM: NAME: phone: ASPEN4*kPITKIN VTAL HEALTH DEPARTIQ�IT W l L b e A 7 L. D -T `f FAX PHONE 9: 0/ q5 Nancy MacKenzie 920-5076 FAX PHONE #: 303-920-5197 J l 5'l �2v1�,2t orV J-3 -t 83-� Total number of pages including title page: REMARKS: Ott, y93-1936 130 South Galena Street Aspen, Colorado 81611 303/920-5070 recycled papa 1 ♦ v I To: Jay Hammond Harriman Construction From: Nancy MacKenzie Date: August 1, 1994 EN{(IRONMENTAL HEALTH DEPARTMENT .Re: RL -port of site inspection conducted. on 7/28/94 of alternative location for Hyde absorption field, Wildcat/Lot4 This department conducted an initial site inspection of the two proposed locations for the absorption fields the beginning of June, 1994. The upper location nearest the house was recommended as the preferred location- for the absorption field. A permit for that location was issued on 6/9/94. Since that time, this department has been asked to re -issue the permit for the lower location, below the pond. Another site inspection was conducted on. 7/28/94 on this 'alternative site. The following concerns must be addressed before the septic permit can be re -issued: 1. When using Infiltrator chambered system in an absorption bed, only a 40% reduction in field size is allowed. A new engineered drawing must be submitted with the larger bed. 2. The design and location of the pond must be finalized. This is critical for an evaluation of the absorption field's location and its proximity to the pond The setbacks in our regulations establish minimum distances .from components. I would suggest that, when possible, it is in the' best interest of the owner to use even greater distances in setbacks. 3. Locating the frield directly below, the pond was not the location preferred by our department because of possible subsurface discharge and. any overflow or failure could impair the functioning of the septic system by overloading and saturating the soils. This would severely impair the soil's ability to absorb and filter water of the septic system. Diversion 130 SOUTH GALENA STREET • ASPEN, COLORADO 81611 • PHONE 303.920.5070 • FAX 303.920.5197 Panted on recycled paper of subsurface discharge and overflow discharge away from the field should be indicated on the final drawing submitted to this department. 4. Once the pond and septic designs are finalized, I propose that we all do a final site inspection together, with locations and grades staked to confirm that there is adequate room for the pond and the absorption field. The pond and septic designs must be coordinated to be certain that the pond does not jeopardize designing a well functioning absorption field for the owners. �w J,. $f= ` Parcel IC�(nl..�5_-o?g3 - �� -Do) ASPEN/PITKii, ENVIRONMENTAL HEALTH DEPARTMEt APPLICATION FOR AN INDIVIDUAL SEWAGE DISPOSAL SYSTEM (ISDS) PERMIT Name of OWNER Pim t e: e 3 AP -A �9y, Bus. Phone # �-,�I 3Ull 1 r Mailing Address p2�' � �� `� .*a4#5 tDO Home Phone # Name of AGENT t�1�n'r ( I, r � Bus. Phone # "l 2�-' 11(o Mailing Address 0� ,(�G/�C Home Phone # "f rr1� (+Copy of Permit to be Sent to: l4Q'r ri Gc� r1 <�� • `� - - / Clti�, ►` PERMIT IS FOR: NEW INSTALLATION, () REPAIR, () ALTERATION NOT DUE TO FAILURE, or () EMERGENCY USE. for permit # STREET ADDRESS of Property: ��' " 04* A I)�� LEGAL DESCRIPTION of Property: W1W6A_f_ lot L, block _, filing _, and subdiv. Size of Lot acres Type of Structure Proposed �1 # BEDROOMS e;, # LOFTS # GARBAGE DISPOSALS # DISHWASHERS 2 , #/CLOTHES WAS,rHLERS � ,� Water Supply: ( ) Private Well, ( ) Spring, ( ) Stream, or System (Public or Private Name: Wj/0hr-4 I Pi�4 60& � I y IS PROOF OF ADEQUATE WATER ATTACHED? () YES or () NO HAS THIS PROJECT BEEN APPROVED BY PITKIN COUNTY? ()YES or () NO Apollcatlun for an individual sewage disposal systr:m permit is hereby submitted The undersigned acknowledges that the above information is true and that false Information will invalidate the application and No construction may be undertaken ,ny subsequent permit. Issuance of the permit does not explicitly or implicitly imply the approval of any other permit required for construction pursuant to Pitkin County codes. until all approvals and permits have been obtained. The owner assumes all responsibilities in case of failure or inadequacy of this system. SIGNATURE OF APPLICANT Date E ` The application becomes invalid 120 days from the date signed. This Permit is valid only for the design as specified below. BELOW FOR OFFICE USE14 INDIVIDUAL SEWAGE DISPOSAL SYSTEM PERMIT # N 0t2v It �I � X � ��t $150 fee paid'} Yes. Date received �1 Receipt # I Received Byj�y DESIGN CRITERIA OF SYSTEM TO BE INSTALLED: Any changes must be submitted and approved in writing. /" � PC( G 70 D gallons.S�+eciFiPcl /UC�S®71J�i+�O��'rr of Bedrooms: �, Percolation Rate: � mpi, / Average Daily Waste Flow: 1 y is an Engineer Designed system needed? () Yes or (VNO (All plans and specifications of the engineer shall be followed. Any changes must be approved in writing and the engineer shall certify the final installation to the Environmental Health Department in writing.) Minimum Septic Tank Capacity 17 �� gallons Absorption Area 90 0 square feet minimum () Absorption Bed, (1KAbsorption Field in Trenches, () Gravel -less system, ( Pumping/Dosing Chamber, () Absorption Pit sfcv� s r/1®den Curs- r *);s 6 e kr f,e�h� 0r-- 4eld 5,m redikc4iz)1 T- - 4. L! rav,el /� i he 4 f�' ,41 0/X5. �artr++eci�� d � Sfr� bit �iot'► �(i� i5 f C'L'oa)lnc,�ci�'�i +G�C[rann m�'�I.�fC � Stages requiring inspection: () Before excavation, () Upon completion and prior to placement of gravel, (Before covering distribution system of absorption I (Prior to backfill of any component and any situation deemed necessary by Environmental Health Department Staff. Plans and specifications of the proposed individual sewage disposal system have been reviewed and are considered satisfactory. Permission is hereby granted to the owner or his agent to perform the work '.ndicated above in accordance with the Pitkin G)unty 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 conditions if any: APPROVED FOR ISSUE BY: l /� DATE OF ISSUE: The above individual sewage disposal system has been mspecte; or use by //�pen/PiWn Environmental Health Department The owner assumes all responsibilities in case of failure or inadequacy of this system. Complete as -built drawing and all spe:ifications of as -b iit are inot sdith this permit. FINAL INSPECTION BY: _ `�'C DATE OF FINAL INSPECTION: :90TH:UDD:JTCPC:WP:PERMIT.B. 1 1301 OUTH G NA STREET ASPPRI TOED ON RECYCLED CYCLED PAPER81611 - E 303.920.5070 FAX 303.920.5197 A/PEHD 1/94 Ir�r. --- ' t Table 3 optic Tank Capacity Based on Number of Bedrooms ! 1/lXn CJ � --- If of Bedrooms Minimum Effective Liquid Tank Capacity (gallons) 1 or less 3 4 Each additional bedroom 75 0 100000 1250 250 — We x� chart, 64e eel sc/s�Ci►� Maximum loading Rates of Effluent Volume for Soil Absorption Systems Rate Typical Soil Textures Mas9mum Loading Rate Percolation (minutes/inch) Soil Class (Appendix 2) (gaIdsq.ftJday) _-_ t Sand 1.30 Q,1 r 0-10 1 l -20 a Sandy Loam to Loam .72 21-30 loam .50 ut P 3t -a0 /v loam to Silty loam .a0 Clay Loam JO J a t -60 v Oyer 60 VI Clay .20 Table S Required Square Footage of Soil Absorption Systems Required Bottom Required Bottom Y Absorption Area in sq. IL Absorption Area In sq- It Required Sldewall Area, I! Per Bedroom' for Per Bedroom' for In sq. It. per Bedroom- for Soil Class Standard Trenches Seepage Beds Seepage Pits 1. 1 165 215 185 11 300 400 335 I 111 440 575 480 tVSSB �749 I 'ramim�m n ml>cr o1 bedrooms K Iwo (21. 'Absorpt.on area for seepage pits hs figured as eltecive sidewall area beneath the "el- 'Un—i.ble Ior seepapits it percolation rate is over thirty (30) minutes per inch. arge 'Unsuitable lot seepage Oeds it pcut-lin rate is o'er one inch (1-1 in Ehirly (30) minutes. `Unsuitable :or conven40nal absO+pi.On systems. x� chart, 64e eel sc/s�Ci►� Nelson Environmental & Wastewater Solutions, Ltd Ei June 6, 1994 W Mr. Boone Caudill SHarriman Construction 409A Aspen Airport Business Center Aspen, CO 81611 RE: Homestead Parcel 4, Wildcat Ranch, numbered off of Lake Wildcat Road Dear Boone: As requested, Nelson Environmental and Wastewater Solutions, Ltd., performed a soils study and percolation tests 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 June 2, 1994. 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 pl' e mai "ice is a relatively large multi-level house with a caretaker unit. There is a total fvix-bedroom et� bin the residence. Site Conditions: The property is served by the treated surface water supply furnished by the subdivision. The site is a lot in the Wildcat Ranch PUD above and to the north of Wildcat Reservoir. The lot is large, and the building envelope approximately 15 acres. The ground surface, which appears natural in the proposed area of the absorption field, is just below the top of a ridge in a saddle and slopes gently to the East and Northwest at a grade of approximately 10% to 15%. There aCe no irri a_g tion ditches in the area. Subsurface Conditions: Two soil profile pits were excavated about 10 feet from each of the the proposed absorption area alternatives. Both were dug to a depth of eight feet. The lowerThe excavations encountered -no -- ground water. No bedrock was present within eight feet of the surface of the ground. The soil texture within the upper profile hole was a silt loam topsoil, forty to sixty inches deep. grading into a sandy clay with some increase in the clay content with depth. The silty loam topsoil predominated in the lower profile hole to a depth of six feet where it had collapse. There was some moisture content in the soils in each profile hole. There was some smearing and compaction noted from the pressure of the excavating equipment used to prepare the profile holes.. Percolation Testing: The subsurface soil conditions were evaluated with the standard percolation test procedures at the P.O. Box 6961 Snowmass Village, CO. 81615 Office (303) 923.3289 Home (303) 923.2766 Hyde Residence Soils Evaluation and Percolation Test for Individual Sewage System Design 06/06/94 Page 2 approximate location shown on Figure 1. The twelve inch diameter test holes were hand dug at the bottom of backhoe excavations, and several inches of gravel placed on the bottom of each hole. In the upper group of percolation tests, the subsoil consisted of loam and a sandy clay which extended to the depth of percolation test holes between forty-six and fifty-five inches. The lower group of percolation test holes with depth varying from fifty=three to sixty nine inches, were located in soils characterized as a silty loam. The percolation holes were pre-soaked the morning of testing, eight hours before the percolation test was begun. After the initial fillings, water was continuously added approximately every twenty minutes for the immediate four hour period before beginning the percolation test. There was some water remaining in all of the percolation test holes when the tests were begun. The results of the percolation testing are presented in Table I. These results indicate the o�f n� clay soils located in the upper group above the pond have an -average percolation rate 3.^3�__ minutes per inch and would be acceptable for a conventionah'i tration design o_r the on-site sewage system. Likewise, the -lower group of test holes that had an average percolation rate of 20 minutes per inch are suitable for conventional construction techniquues for the on-site wastewater disposal system. There may be a limiting layer of shale bedrock at a depth of eight or nine feet on — the lower portions of the building site. ' 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 recommendations. If you have questions or if we may be of further assistance, please call the office. Sincerely, Robert F. Nelson President cc: Schmeuser, Gordon, Meyer Engineering Reviewed By: Ja Hammond, P.E. SGM Engineering I Nelson Environmental & Wastewater Solutions, LtA W TABLE I S PERCOLATION TEST RESULT FORM 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) GROUP 1 1 55 15 513/16 5 13/16 15 5 4 1/2 1/2 15 4 1/2 3 7/8 5/8 15 3 7/8 3 1/2 3/8 40 2 46 15 89/16 73/4 13/16 15 73/4 65/8 1 1/8 15 65/8 5 7/8 3/4 15 5 7/8 5 1/8 3/4 20 3 51 15 3 5/8 3 1/8 1/2 15 3 1/8 2 5/8 1/2 15 25/8 2 1/2 1/8 15 2 1/2 2 1/8 3/8 40 GROUP 2 4 48 15 83/8 63/4 1 1/2 15 63/4 57/8 7/8 15 5 7/8 5 7/8 15 5 47/16 13/16 18 5 69 15 73/8 6 13/16 9/16 15 6 13/16 53/4 1 1/16 15 5 3/4 5 3/4 15 5 47/16 9/16 27 P.O. Box 6961 Snowmass Village, CO. 81615 Office (303) 923.3289 Home (303) 923.2766 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) 6 53 15 93/4 83/8 1 3/8 15 83/8 7 1/4 1 1/8 15 7 1/4 61/4 1 15 61/4 5 3/8 7/8 17 Hyde Property Lot 4, Wildcat Ranch Subdivision Date of Percolation Test: 06/02/94 2 a • Nelson Environmental & Wastewater Solutions, RA E Property Address: 1500 Lake Wildcat Road W Legal Description: Homestead Tract 4, Wildcat Ranch Subdivision S Property Owner: Name Pitt and Barbara Hyde Contractor Excavating Contractor: Name Harriman Construction Name Aspen Earthmoving Address 409A AABC Address28450 Highway 82 Aspen, CO 81611 Basalt, CO 81621 Phcne 925-1161 Phone 927-4744 Saturation and Swelling o Smeared surfaces removed X Yes o Gravel Added X Yes To a 3" Depth o Date and Time presoak water added 06/02/94 10:35 a.m. o Amount of presoak water added 12 to 21 gallons /hole o Water remaining in holes after presoak? Hole 1 X Yes No Hole 2: X Yes No Hole 3 X Yes No Hole 4 X Yes No Hole 5 X Yes No Hole 6 X Yes No Percolation Rate Measurement Hole 1: 40 nunutes/inch Hole 2: 20 minutes/inch Hole 3: 40 minutes/inch Hole 4: 18 minutes/inch Hole 5: 27 minutes/inch Hole 6: 17 minutes/inch AVERA(3E 33 minutes/inch(group 1) 20 minutes/inch(group 2) Groundwater: o Not Encountered to 8 ft. o Estimated depth to high seasonal water if not encountered- 100 feet o Is area believed to be subject to seasonal fluctuations which could result in a seasonal water table? Yes X No Slope in absorption area 10% to the NE Bedrock o Not Encountered o Estimated depth if not encountered -10 ft. o Type of bedrock: Sandstone Claystone Siltstone X Other: Shale 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) Reviewed by: -- 5z Robert F. Nelson Jay/Hmmond, P.E. President Schmueser, Gordon Meyer, Engin /_1 s 6 Y P.O. Box 696:1 Snowmass Village, CO. 81615 Office (303) 923.3289 Hoare (303) 923.2766 i`// v 4" TEE (REMOVE FOR INSPECTION) FINISH GRADE 4" PVC 72" MIN. COVER NOTE.- INSTALL INFILTRATOR PER MANUFACTURER'S REQUIREMENTS AND/OR RECOMMENDATIONS. rr NATIVE MATERIALS BOTTOM OF BED 3.0' N. T S. NOTE.- CLEANOUT TO BE LOCATED AT ALL HORIZONTAL AND/OR VERTICAL CHANGES /N DIRECTION 45 PVC 4" PVC WYE OR ELBOW FLOW 7i NATIVE BACKFILL 4" NO HUB COUPLING INFIL IRA TOR D o N � PL UC — 45 PUC ELBOW CLE,4N—OUT DETAIL 1� llVrlLIKN/VIC U/V/N iv nc c UIV/VLA IL I „�,V, TO BE LEVEL f0. 7' COMMON HEADER PIPE INSTALLED LEVEL FOR WIDTH OF ABSORPTION BED. (4" ASTM 2729) BED SECTION N. 7. S. GENERAL NOTES.- 1. OTES.1. All materials, installation practices, setback requirements, etc., shall comply with the Pitkin County Individual Sewage Disposal System Regulations. J. Stone shall be 3/4" to 2-112" screened rock. DESIGN CALCULATIONS 4. Piping to system shall be standard sewer pipe, ASTM 2729 Sewer HYDE I.S.D.S. & Drain Leachfield Pipe. (use ASTM 3034 or better in traffic areas) PITKIN COUNTY, COLORADO 5. The area disturbed by construction shall be reseeded with 1, DESIGN PERCOLATION RATE (NATIVE) _ �2 �11NUTES/INCH native grasses to prevent erosion. 2 DESIGN CRITERIA: i 6. Use risers as needed to bring septic tank access hatch within 6" of finished grade. 5 BEDROOM MAIN HOUSE 1 BEDROOM CARETAKER HOUSE 7 Cast iron pipe of equal strength or other pipe properly 2 PERSONS PER BEDROOM supported to prevent failure by settling shall extend 75 PERSONS PER BEDROOM PER DAY fmm tonk for o distonce of of !ens` five feet (5) rrom Me inlet and outlet ends. 3. DETERMINE AVERAGE DAILY FLOW: 8. The following preventative maintenance schedule is Q = (6)(2)(75) = 900 GALLONS PER DAY recommended to prolong the life of the system.- 4. ystem:4. DESIGN DAILY FLOW @ 120% AVERAGE DAILY FLOW: o) Pump septic tanks at least once a year. b) Check plumbing fixtures on a regular basis and repair Q = 900 (1.2) = 1080 GALLONS PER DAY all leaks which can add substantiol amounts of water to the system. 5. SEPTIC TANK CAPACITY: 70. The Contractor and Owner shall take whatever measures USE 2000 GALLON SEPTIC TANK PER CODE MINIMUM are necessary to assure that a) the septic tank and sewer lines are completely water tight to prevent 6. SIZE ABSORPTION AREA: infiltration of groundwater into the system, and b) the system is installed to prevent freezing of A = 1.95(Q) _ 0.055(Q) WHERE: Q= DESIGN FLOW gravity sewer lines. L. R. A= ABSORPTION AREA L.R.= LOADING RATE 77. The Pitkin County Environmental Health Department and the Engineer shall be notified when construction A = 1.95(1080) _ 0.055(1080) = 2865.6 S.F. commences and kept abreast of the construction progress 0.72 so that sufficient inspection can be performed to assure conformance with these plans. Provide a minimum of 48 THE ABOVE ABSORPTION AREA REPRESENTS THE AREA NECESSARY hours notice to each. FOR ABED TYPE SYSTEM. 72. Site map by Schmuser Gordon Meyer (1' contours) and Reid's 7. ADJUSTMENTS TO ABSORPTION AREA: Aerial Mapping (2' contours). FOR INFILTRATOR BED: DECREASE AREA BY A FACTOR OF .40 73. If number of bedrooms or persons per bedroom varies from design assumption used to calculate flow, contact 8. FOR USE OF BED TYPE SYSTEM: / engineer prior to installation. A = 2865.60 * 0.6 = 1719.4 SQ. FT. 74, if house is installed with intense water consumptive INSTALL 42' x 42' ABSORPTION BED (98 INFILTRATOR UNITS) fixtures normally not associated with typical domestic EFFECTIVE AREA = 7764 S.F. 1, , fixtures, contact engineer prior to installation. U1� NUM- _. r.. ENGINEERS SCHMUESER CORDON MEYER INC. LOT 4 WILDCAT RANCH BER SURVEYORS �SG118 W. 6th Street, Suite 200 HYDE RESIDENCE � -4- '(303) Glenwood Springs, Colorado 81601 scwMuesER ' (303) 945-1004 (FAX 945_ 5948) Aspen, Colorado (303) 925 6727 ) COLOI 1 D0 GORDON MEYER -- p REVISIONDATE BY s , FJ6�b No 8195E rawn by.• �✓C '-I.S.D.S._ C. — -. _ Dote. 911194' OE7AILS' Appn by.* ✓H OF File • NYDF55 GRAPHIC SCALE 0 25 50 100 g ( IN FEET ) 1 inch = 50 ft =D ? FOR DETAILS) u# �I � I i i I I i 44; ..t 'iris'F3Ei'DT,a°d%C.Fm'f�.283�est.L2t5v�a" 91. mw _1/9 4 ._ . T-1 _._ DISPOSAL SYSTEM Dote � ,, � ppr. b.y. JH of - 516: HYD!7�5 it CV co ar