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HomeMy WebLinkAboutpitkin.eh.272929201084 (2003)Permit # 03047 Pitkin County Environmental Health Department Permit for an Individual Sewage Disposal System 0405 Castle Creek Road, Suite 10, Aspen, Colorado 81611 Phone 970-920-5070 / FAX 970-920-5077 Parcel ID # 2729-292-01-084 Type of permit Addition/Remodel to House( x ) To legalize a system that was installed without a permit Name of Owner Judith Garman & JoAnn Zwanziger Street Address 360 Chair Mountain Drive, Redstone Property legal description Lots 11 & 62 Phase 1 Crystal River Park Size of lot 0.415 acres Water source Town of Redstone # of bedrooms in house 3 Caretaker unit -- # of bedrooms in caretaker unit Designed for what # rooms (list) Designed by Mailing Address Perc rate 17 Total square footage of the house 1,786 # of offices, lofts & similar sized rooms in house Total square footage of the caretaker unit -- # of offices, lofts & similar sized rooms in caretaker unit THREE bedrooms Permit information Gamba & Associates 113 9" St Suite 214 Glenwood Springs CO 81601 Profile hole depth 22 ft Depth to groundwater or bedrock + 22 ft Minimum Septic tank capacity 984 Minimum Absorption area 650 sq ft Cnmments This permit is to legalize a system that was installed without a septic permit. The engineer verified: 1) the size, the condition of the drywell and the septic tank as installed; 2) separation to all physical features for required setback distances; 3) the soil conditions and performed profile hole and percolation tests. An effluent filter was added to the outlet of the septic tank. The existing two compartment tank is approximately 1,287 gallons. The drywell is about 13 ft x 15 ft x 15 deep = 949 sq ft. The engineer determined that the septic tank and the drywell were in strict compliance with current Pitkin County ISDS Regulations. See Engineer drawing and details stamped 08/07/03. - J Permit approved by: Date: 81S 3 Plans and specifications of the pr osed individual sewage disposal system have been reviewed and are considered satisfactory. Permission is hereby granted to the owner or the agent to perform the work indicated in accordance with the Pitkin County ISDS Regulation in effect at the time of issue. This permit becomes invalid 6 months from the date that the permit was issued unless system construction has commenced or an extension has been approved in writing by the Department. As -built drawings must be included Installer: L,a this permit before the final approval will be issued. _ G Final approval: Date: a e'3 PITKIN COWrY ENVIRONMENTAL HEALTH DEPt... FMENT APPLICATION FOR INDIVIDUAL SEWAGE DISPOSAL SYSTEM 0405 Castle Creek Road, Suite 10, Aspen Colorado 81611 Phone 970-920-5070/Fax 970-920-5077 Name of OWNER: Judith Garman & JoAnn Zwanziger Owner's Mailing Address: 360 Chair Mountain Drive City, State, Zip Home Phones Redstone, Colorado Business Phone: : (970) 704-0137 Home Phone: (970) 963-0376 E-mail Address: unknown Primary Contact Person (all communication regarding this permit will go through this person) Name: T. Carter Page, P.E. 35161 Company: Gomba & Associates, Inc. Contact Mailing Address: 113 9" Street, Suite 214 City State Zip: Glenwood Springs CO 81601 Business Phone: (970) 945-2550 exten. 106 Cell Phone: (970) 948-3149 Fax: (970) 945-1410 E-mail Address tcpage(@aambaenctineerina.com Permit is for: New Home ❑ Repair due to failure ❑ Remodel/Addition X Emergency use ❑ Water: Private well ❑ Spring ❑ Stream ❑ Community/Public Water System X If community system: Name of system Town of Redstone Parcel ID # (available from assessor's office at 920-5160 or at www.aspen.com/assessor/) 2729 - 292 - 01- 084 Street address of property: 360 Chair Mountain Drive Legal Description: Lots: 1 1 & 62 Block: N/A Filing: Phase 1 Subdivision: Crystal River Park Size of lot: 0.415 Acres. Type of Proposed Structure: Existing Wood Frame Total square feet of house: 1,786 # of bedrooms (potential) in house: THREE (3) Caretaker Unit: Attached? ❑ Detached? ❑ Not Applicable? X Total square feet of caretaker unit: N/A # of bedrooms (potential) in caretaker N/A The fee for a ISDS application is $600 for a permit that takes 6 hours or less for the department to approve. If approval takes longer than 6 hours, a rate of $100 per hour will be charged. The maximum fee is $1000. The basic fee of $600 is due at the time of application. The remainder, if any, will be due in two stages: first, at the time of issuance of the ISDS permit; second, before final approval of the ISDS permit. Application for an individual sewage disposal system is hereby submitted. I hereby certify that the above information is true and accurate and that I have provided true and accurate information on locations of all existing and proposed wells, contour intervals, buildings, property lines, ditches, slopes, waterlines, springs, suction or irrigation lines, drinking water cisterns, drain tiles, irrigation ditches, lakes, water courses, streams, floodplains, dry gulches, and existing septic systems. I hereby certify that any such features not shown on attached site map are not present. Issuance of the permit does not 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 Aspen/Pitkin Environmental Health Department, Pitkin County and employees of these agencies will be held harmless should the individual sewage disposal system fail or malfun ..on. The rmit to construct is issued on information submitted by the applicant or his/hesentatives. The owner assumes full responsibility i o f of the sys Signature of applic t: Date:ZZ -,/ I Received by: '- =�t-�� Receipt#: 1r5 3 Date: _T GAGovernment Documents and Regulations\Pitkin County\ISDS Regulations\Permit Application.doc Created on 02/22/2003 4:35 PM �� 030`lI Pitkin County Environmental Health Department Contact Log Sheet -2 -7 L el _ -2 '? 2 U _ FT Name:iCAV, j Parcel Address: Person .. - ..-� - - .-Wi / i i ,ice / WAA iL UwAi ME i1 •— � wV -_ . FID 1. • OPAX __ ■'PHONE CODE NUMBER , I I km ju MESSAGE i ' O g CM,.. Item #848861 SIGNED G A M B A IN ASSOCIATES CONSULTING ENGINEERS & LAND SURVEYORS WWW.G AM E A ENG IN EER I NG.COM PHONE: 970/945-2550 FAX: 970/945-1410 113 NINTH STREET, SUITE 214 P.O. BOX 1458 GLENWOOD SPRINGS, COLORADO 8 1 602-1 458 Sunday, Aug* 10, 2003 Nancy MacKenzie Environmental Health Specialist Pitkin County Environmental Health 0405 Castle Creek Road, Suite 10 Aspen, CO 81611 Copy by email to: nancymO-ci.aspen.co.us Original by mail. Dear Nancy: J RECENED AUG 1 '/) 2003 PITKIN COUNTY ENVIROWOENTAL HEALTH The following is the soil information for the Garman-Zwanziger Residence, existing, non -permitted septic system, located at 360 Chair Mountain Drive in Redstone, Colorado. The existing drywell system has an upper area of approximately 15' by 15', and a depth to the bottom of the vertical standpipe of 15' below the invert elevation, which is about 18.2' below existing ground at the cleanout. A soil pit approximately 22' in total depth was excavated by Duane Piffer, just outside of the existing drywell site. The excavation revealed neither ground water nor bedrock to the depth of the profile hole. This hole was observed by you and I in May of 2003. Soil Classification of the profile hole is as follows: 0" to 4" Dark Brown organic soil and grass. 4" to 22' Dark Red, sandy, silty, clayey soils with no significant rocks. The entire depth of soil below the organic topsoil was highly homogeneous, and appeared to be weathered conglomerate from the formations above the Crystal River Park subdivision. Gamba & Associates, Inc. performed percolation testing just outside of the existing drywell area in order to evaluate the as -built system for adequate size. Percolation tests were performed on two separate occasions, first on April 17', then again on May 13`x, 2003. In the initial tests, conducted in the afternoon of April 17', three sites for percolation test holes were excavated using a track -hoe at depths of 4', 8.4' and 14'. Approximately 10" diameter holes were then hand excavated to provide percolation test holes having final depths below existing ground of 6.5', 9.6' and 15' respectively. The test holes were thoroughly pre-soaked the night before the test by Duane Piffer, and a light snow fell overnight. The ground was very wet and over- saturated on the day of the test. The results of the first day's percolation testing were highly uniform, two were essentially identical, and the third was within 5 % of the others. All were too high to permit a drywell, being well over the 60 min./in. allowed maximum rate. Examination of the bottoms of all three percolation test holes on the morning of Page 1 of 2 I/.V, 111.1V 11 DR35 PVC 2 PIPE 18.1' ,AIODCn TIn,.I DrIOT P, DCWMIAQI C /`AD RAFT 50OX FABRIC (typ.) 11�I. t NATIVE SOIL - RED -COLORED, SILTY, CLAYEY SAND S 3.56' Ny �4­ PVC TEE -INLET FLOWLINE 3" 14" EXT. PRIMARY CHAMBER: 112.27 cu.ft. = 839.8 gal 6.10' (DESIGN BASIS) CROSS SECTION N.T.S. 20" CONCRETE COVERS 20" METER PIT SECTIONS � 2.85' OF EXISTING DR OUTLET FLOWLINE 4"" SDR35 PVC SEWER PIPE TO DRYWELL ORENCO SYSTEMS MODEL FT0444-36 EFFLUENT FILTER, O.A_E_ NOTES: SECONDARY CHAMBER: 1) INTERNAL TANK WIDTH 5.17' (BOTH CHAMBERS). 59.82 cu.ft. = 447.5 gal. 2) INLET AND OUTLET PIPES ARE SHOWN PASSING THROUGH END OF TANK. THE ACTUAL INLET AND OUTLET PIPES GO THROUGH THE SIDEWALLS OF THE TANK AS SHOWN ON THE PLAN VIEW. 3) BAFFLE WALL ISASSUMEDTO BE 4 -inches THICK. 3.25' 4) COMBINED VOLUME OF BOTH CHAMBERS IS CALCULATED TO BE: 172.1 cu.ft. = 1,287.3 gal. CROSS SECTION OF EXISTING NOMINAL 1,250 GALLON PRECAST SEPTIC TANK N. T.S. MINIMUM SEPTIC WSTEM DESIGN CALCULATION FOR SEPTIC TANK SIZE AND ABSORPTION FIELD AREA, for: Judith Garman & JoAnn Zwanziger 360 Chair Mountain Drive, Restone, CO 81623 MINIMUM DESIGN IS FOR A 3 3EDR00M, 1,786 SQUARE FOOT RESIDENCE. ACCORDING TO PITKIN COUNT' ENVIRONMENTAL HEALTH DEPARTMENT, TO CALCULATE SEWAGE FLOW ASSUME TWO PERSONS PER EEDROOM.USING AN AVERAGE DAILY SEWAGE FLOW OF 75 GALLONS PER PERSON PER DAY. (3 BEDROOMS) x (2 PERSONSPER BEDROOM) = 6. PEOPLE AVERAGE DAILY SEWAGE FLOV = (6 PEOPLE) x (75 gpd/PERSON) = 450 gpd MAXIMUM DAILY SEWAGE FLOV = (1.75) x AVERAGE DAILY FLOW (1.75) x (450 GPD) = 787.5 gpd. (USE 788 gpd.) MINIMUM SEPTIC TANK SIZE: (30 hr. DETENTION) + AN ADDITIONAL 259 FOR A GARBAGE DISPOSAL. 30 hr. = 1.25 DAYS MINIMUM TANK SIZE = MAX. DAILY FLOW x 1.25 x 1.25 788 x 1.25 x 1.25 = 1,231.?5 gal. (min.) THE MINIMUM ABSORPTION AP.EA (A) FOR A GRAVEL -FILLED DRYWELL TYPE ABSORPTION FIELD IS CALCULATED USING THE FORMULA: A = Q x t 5 Where: Q = MAXIMUM DAILY SEWAGE FLOW = 788 gpd t = HIGHEST PERCOLATION RATE = 17 min/in. [per Combo & Associates testing of May 13, 20031 THEREFORE: A = (788) x 17 = 649.80 sq. ft. (min.) SAY: 650 sq.ft- 5 CALCULATION OF ACTUAL, AS -BUILT SEPTIC SYSTEM COMPONENTS, for: Judith Garman & JoAnn Zwanziger 360 Chair Mountain Drive, Redstone, CO 81623 THE EFFECTIVE VOLUME OF THE EXISTING SEPTIC TANK AS CONSTRUCTED AND IN PLACE, IS DETERMINED BY THE INSIDE DIMENSIONS OF THE TANK, WITH THE DEPTH DIMENSION DETERMINED BY THE OUTLET INVERT. INTERIOR TANK DIMENSIONS OF THE SEPTIC TANK ARE AS FOLLOWS: PRIMARY CHAMBER: 6.10' long by 5.17' wide by 3.56' deep = 112.27 cubic feet [7.48 gal./cu.ft.] = 839.80 gal. SECONDARY CHAMBER: 3.25' long by 5.17' wide by 3.56' deep = 59.82 cubic feet [7.48 gal./cu.ft.] = 447.43 gal. j TOTAL. COMBINED VOLUME: = 172.10 cubic feet [7.48 gal./cu.ft.] = 1.287.30 gal. V BY WATER METER READINGS: THE TANK WAS EMPTIED ON OR ABOUT APRIL 16th, 2003. ON APRIL 17th, THE TANK WAS RE -FILLED FROM THE DOMESTIC WATER SUPPLY, AND THE WATER METER WAS OBSERVED AT THE START OF THE PROCESS, AND AGAIN WHEN THE WATER LEVEL IN THE TANK HAD JUST REACHED THE OUTLET INVERT. WATER METER READING AT END OF TEST: 1,376,340 gal. WATER METER READING AT START OF TEST: 1.375.060 gal. VOLUME OF SEPTIC TANK: 1,280 gal. SINCE THE AS -BUILT SEPTIC TANK VOLUME OF 1,280 t gal. (BY TWO METHODS) IS GREATER THAN THE MINIMUM DESIGN VOLUME OF 1,231.25 gal., THE EXISTING SEPTIC TANK VOLUME IS SATISFACTORY. EARLY ON APRIL 17th, WHEN THE TANK WAS STILL EMPTY, ALL FEATURES OF THE TANK WERE OBSERVED FOR STRUCTURAL INTEGRITY AND CONDITION. THERE WERE NO SIGNS OF LEAKAGE OR SIGNIFICANT DAMAGE TO THE TANK, THE INLET PIPE WAS EQUIPPED WITH A "TEE" AND EXTENSION, AS WAS THE OUTLET. THE OUTLET "TEE" AND EXTENSION WERE REMOVED AND REPLACED WITH AN ORENCO SYSTEMS MODEL FT0444-36 EFFLUENT FILTER. WITH $ -inch FILTER OPENINGS. CALCULATION OF EXISTING DRYWELL AREA: THE TOP OF THE EXISTING DRYWELL WAS EXPOSED TO THE FULL EXTENT OF THE GRAVEL PLACED IN 1996, AND MEASURED. THE DEPTH OF THE EXISTING INSPECTION PIPE/VERTICAL DISTRIBUTION PIPE WAS MEASURED, AS WAS THE DEPTH TO THE INLET "TEE". THE EFFECTIVE DEPTH OF THE DRYWELL IS THE DIFFERENCE BETWEEN THE ABOVE TWO MEASUREMENTS, PLUS THE DEPTH OF GRAVEL BELOW THE BOTTOM OF THE BOTTOM OF THE INSPECTION PIPE. SEE DRAWINGS THIS SHEET. BECAUSE THE EXACT DIMENSIONS OF THE DRYWELL CANNOT BE PRECISELY KNOWN, A CONSERVATIVE VALUE FOR THE HORIZONTAL DIMENSIONS IS ASSUMED. DEPTH TO BOTTOM OF INSPECTION PIPE: 18.2' DEPTH TO FLOWLINE OF INLET PIPE: 4.2' ASSUMED DEPTH OF GRAVEL BELOW BOTTOM OF INLET PIPE: 1 NET EFFECTIVE DEPTH OF DRYWELL = 18.2' - 4.2' + 1' = 15' DIMENSIONS OF TOP SURFACE OF DRYWELL: 15'1 x 15'1 ASSUMED BOTTOM DIMENSIONS OF DRYWELL: 13' x 13' = 169 sq.ft. (BOTTOM AREA) SIDEWALL AREA = 4 sidewalls x 15' deep x 13' wide = 780 sq.ft. J / j TOTAL AVAILABLE AREA OF DRYWELL: 169 sq.ft. + 780 sq.ft. = 949 sq.ft. > 650 sq.ft. REQUIRED MINIMUM. SECONDARY CALCULATION OF DRYWELL AREA: BASED ON DUANE PIFFER'S CONSTRUCTION BILL OF AUGUST 1996, WHICH STATES, IN PART: "HAUL OFF 150 cu.yd. DIRT" "BRING IN 210 TONS 1 J" ROCK FOR DRYWELL" 150 cu.yd. = 4,050 cu.ft. = A CUBE 15.94' on each side. 210 TONS [ 1 cu.yd./1.85 TONS] = 113.5 cu.yd. = 3,064.5 cu.ft. = A CUBE 14.52' on each side. THEREFORE, THE PHYSICALLY MEASURED (WITH APPROXIMATIONS) AND THE STATED VOLUMES OF EARTH REMOVED FROM THE SITE, AND THE ROCK IMPORTED, ARE IN REASONABLE AGREEMENT, AND THE APPARENT AREA OF THE DRYWELL EXCEEDS THE MINIMUM REQUIRED AREA. All components directly observed, of the septic system appear to have been installed according to the PITKIN COUNTY Regulations, and Colorado Department of Health regulations. See attached 0 & M Manual provided by Gamba & Associates, Inc., for required operating and maintenance procedures. o••�p�REC%S�% i,•�Q •�� F9o� •E •• ��,,% Garman-Zwanziger ISDS Details Judith Garman & JoAnn Zwanziger Lots 11 & 60 Crystal River Park , 3GO Chair Mountain Drive SHEET NO. r'P�R �p1••� Redstone, Colorado 81 G23 31 - ........ •\�4p •. �I �l v �.�•''' G A M B A (,970).9G3-0376 SCALE: as SHOWN DATE: July 30, 2M ORAWNBv: rtp GAMBA & ASSOCIATES, INC. CONSULTING ENGINEERS & LAND SURVEYORS SHEET: 2 of 2 PROJECT: 03393 CHKD BY: cM REV MADE CHKD NO. DATE REVISION BY BY APPD BY ,,,,,,�� DRAWING: SEPTIC•DETAIISAWIS [DIRECTORY: HA03393\ $ ASSOCIATES 970/945-2550 WWW.GAMBAENGINEERING.COM 113 NINTH ST., STE. 214 P.O. BOX 1458 GLEN WOOD SPRINGS, CO 81602 NEW PROPANE TANK / .•-401\ ,�D SS/ *Ass/ . /•�. �::��.s .y 82'7 7' ll`` is^: '':.�r;._'•:,,': .::.,/ 31.49' lV" / '-GRAVEL -:DRIVEWAY":':.,::...,'..,, \F 9-5 oe --- "1 / ..NEW / CONCRETE - /'° •PARKING - 0 .00 EXISTING SEPTIC TANK: 1,280 gal. t X4SS— X4SS— 1. TO FIT NEW & S ..y..s.,s ..s..yisiYiA• � k\ \\ kl. �\k90 W-2 -IT261-1-41 s00, \. X00•.\ 00, Lot 61 0 O0 61'�P ti�0 _1\ \ Phi F'PO��P GP PQ LOt 11 / 170 % \ O %\ ,cwt iEXISTING WELLNOT IN USE LEGEND PROPERTY BOUNDARY ABANDONED PROPERTY BOUNDARY (JOINED LOTS) BUILDING ENVELOPE APPROXIMATE EDGE OF ROAD CO_ PT J 0 --------------------- APPROXIMATE DRIVEWAYS o NEW DECK ' /y� i : % APPROXIMATE EXISTING SEWER SERVICE LINE (4" SDR35 P.V.C.) o Lot 12 °� — ^S" -----SAM APPROXIMATE EXISTING WATER SERVICE LINE (4" COPPER) .......22' DEEP / EXISTING WATER SHUT-OFF PROFILE HOLE i i O EXISTING WATER METER (IN PIT) ' EXISTING DRYWELL O EXISTING SEWER CLEANOUT/INSPECTION PORT � SIDEWALL AREA i' / • co BELOW INLET: 780 sq.ft. ± PT BOTTOM AREA: 169 sq.ft. t / Q PERCOLATION TEST PIT TOTAL: 949 sq.ft. t i Q FOUND PROPERTY PINS INDICATES JOINTED LOTS CID i /. \ EXISTING RESIDENCE 360 Chair Mountain Drive Lots 11 and 62: COMBINED AREA = 0.415 Ac. ± ' TW Crystal River Park. \ 1,632 sq.ft. Residence PROPOSED RESIDENCE / 1,786 sq.ft. Residence Three Bedrooms Total Single Family 1 1 10 20 30 GRAPHIC SCALE IN FEET 1 INCH= 10 FEET NOTES: 1) Existing plat and building location information from ILC survey by Lines In Space dated January 3, 2003. 2) Existing and proposed residential building dimensions and floor areas from Architectural Plans by Nancy V.A. Smith, architect, provided on February 24, 2003. 3) Existing septic system components, including the septic tank and drywell were inspected and measured by Gamba & Associates, Inc. on April 14, and May 13, 2003. 4) System design has been based on percolation tests and profile hole exploration conducted by Gamba & Associates, Inc. on May 13, 2003, using the highest percolation rate of 17 min.fin. 5) The profile hole was inspected by Pitkin County in May of 2003. - :'`, =.. •I is SHEET NO. ,,011o'REc%Sri•. s'O\OF}�PEt E '6•�'•6'.0• Garman-Zwanziger Existing ISDS Site Plan Lots 11 & 62, Crystal River Park 360 Chair Mountain Drive A .`.. ./, F Redstone, Colorado 8I 623 • �' \`�N,�: ' Vic` ' t,. � 7 .ti .' ` �;9d^� ,.• \��•`� S(`l 11l �,p� - GAMBA (970) 963-0376 SCALE: 1" = 10' DATE: July 30,2003 DRAWN BY: lcp loe GAMBA & ASSOCIATES, INC. CONSULTING ENGINEERS & LAND SURVEYORS SHEET: loft PROJECT: 03393 cH--- c6f r K W 1 DRAWING: SitePIu&dwg a ASSOCIATES 970/945-2550 WWw.GAMBAENGINEERING.COM NO. BY BY BY DIRECTORY: He\03393\ 113 NINTH ST., STE. 214 P.O. BOX 1458 GLENWOOD SPRINGS, CO 81602 -,Qf QQ�:::' 1 Lot 62 J \ `\ s00, \. X00•.\ 00, Lot 61 0 O0 61'�P ti�0 _1\ \ Phi F'PO��P GP PQ LOt 11 / 170 % \ O %\ ,cwt iEXISTING WELLNOT IN USE LEGEND PROPERTY BOUNDARY ABANDONED PROPERTY BOUNDARY (JOINED LOTS) BUILDING ENVELOPE APPROXIMATE EDGE OF ROAD CO_ PT J 0 --------------------- APPROXIMATE DRIVEWAYS o NEW DECK ' /y� i : % APPROXIMATE EXISTING SEWER SERVICE LINE (4" SDR35 P.V.C.) o Lot 12 °� — ^S" -----SAM APPROXIMATE EXISTING WATER SERVICE LINE (4" COPPER) .......22' DEEP / EXISTING WATER SHUT-OFF PROFILE HOLE i i O EXISTING WATER METER (IN PIT) ' EXISTING DRYWELL O EXISTING SEWER CLEANOUT/INSPECTION PORT � SIDEWALL AREA i' / • co BELOW INLET: 780 sq.ft. ± PT BOTTOM AREA: 169 sq.ft. t / Q PERCOLATION TEST PIT TOTAL: 949 sq.ft. t i Q FOUND PROPERTY PINS INDICATES JOINTED LOTS CID i /. \ EXISTING RESIDENCE 360 Chair Mountain Drive Lots 11 and 62: COMBINED AREA = 0.415 Ac. ± ' TW Crystal River Park. \ 1,632 sq.ft. Residence PROPOSED RESIDENCE / 1,786 sq.ft. Residence Three Bedrooms Total Single Family 1 1 10 20 30 GRAPHIC SCALE IN FEET 1 INCH= 10 FEET NOTES: 1) Existing plat and building location information from ILC survey by Lines In Space dated January 3, 2003. 2) Existing and proposed residential building dimensions and floor areas from Architectural Plans by Nancy V.A. Smith, architect, provided on February 24, 2003. 3) Existing septic system components, including the septic tank and drywell were inspected and measured by Gamba & Associates, Inc. on April 14, and May 13, 2003. 4) System design has been based on percolation tests and profile hole exploration conducted by Gamba & Associates, Inc. on May 13, 2003, using the highest percolation rate of 17 min.fin. 5) The profile hole was inspected by Pitkin County in May of 2003. Judith Garman & JoAnn Z-wanziger SHEET NO. ,,011o'REc%Sri•. s'O\OF}�PEt E '6•�'•6'.0• Garman-Zwanziger Existing ISDS Site Plan Lots 11 & 62, Crystal River Park 360 Chair Mountain Drive �F' F Redstone, Colorado 8I 623 ` �;9d^� ,.• \��•`� S(`l 11l �,p� - GAMBA (970) 963-0376 SCALE: 1" = 10' DATE: July 30,2003 DRAWN BY: lcp GAMBA & ASSOCIATES, INC. CONSULTING ENGINEERS & LAND SURVEYORS SHEET: loft PROJECT: 03393 cH--- c6f REV MADE CHKD APPD DATE REVISION DRAWING: SitePIu&dwg a ASSOCIATES 970/945-2550 WWw.GAMBAENGINEERING.COM NO. BY BY BY DIRECTORY: He\03393\ 113 NINTH ST., STE. 214 P.O. BOX 1458 GLENWOOD SPRINGS, CO 81602 Garman-ZwaAwOr Residence - ISDS .✓` Percolation Testing Results April 18' revealed that the clay fraction of the soils had sloughed off the test hole walls and coated the bottom of the test pits. Samples from the very bottom depth (22') and all three other depths listed above were collected, and "jar tests" were performed as a means of evaluating the approximate percentage of silts and clays present. The results of the jar tests indicated that approximately 10% by volume of the soil was CLAY, 12% was silt or extremely fine sand, and the remaining 78% was fine sand. These results were very uniform for all jar tests performed. These results, the uniformity of the previous percolation tests, the very wet conditions at the time of the test, and the heavy clay layer found in the bottom of the percolation test holes led us to perform an additional percolation test on May 13'. A discussion was held on-site with you, at the time you witnessed the profile hole, and because the soil was so uniform and homogeneous, and because of access and safety concerns at the 22' depth, we decided to perform a single additional test to be used as the design basis. This test was performed in a slightly different manner than the three original tests, and we believe that it is more representative of the actual drywell conditions, and the results were more consistent with surrounding properties. A site was prepared at the 10' depth from existing ground, and a hole approximately 10" in diameter was hand excavated an additional 2' below the platform. The sides of the hole were thoroughly roughened, to reduce smearing of the sidewalls, and all loose material was removed from the bottom of the hole. A one -foot thick layer of gravel was placed in the bottom of the hole, which more closely resembles the actual conditions in a typical drywell. The percolation test was performed over a period of 1 hour and 20 minutes, during which time the water level fell 9.72 inches. The results are presented on the attached "Percolation Test Results Form - May 13', 2003. The average rate was 9.78 min./in. For a more conservative design basis, the highest value of the percolation rate (rounded up to the nearest even minute) was used: 17 min/in. If you have any questions, please do not hesitate to call. Sincerely, Gamba & Associates, Inc. i 35161 Enclosures: Garman-Zwanziger - "Percolation Test Results Form - May 13`'', 2003 H:\03393\SOILS.doc Page 2 of 2 N Cd s.. N 7 t v cv N 01 f6 W y 1711 F+-1 � W W [— l— 110 [— M r- - _ [� ^ 7'= M M Ln V-) \�O Ln �c 00 00 W � W W j W y O N N O O N O 00 D d' "D "C 00 O O O � N Q M \O V) Ln �O V) ch M N M M M M M N M N M O 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 � Q d� 00 M 00 ch C\ M \O 00 M V'1 00 O M -- t -- In11" In 11" In 'n I I I z Fay O Ww Q Qw O Q W �t�tv�vd vCD 0 0 C:, 0 CD 0 0 0 0 0 0 0 0 0 0 0 0 a 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 6 6 6 6 6 6 N N N N N N N N N N N N N N N N N N N N N N Q 00 N C O 00 N �O O� Do N C O00 N110 O't 00 N O O^ N Nm M M V V) V) O O N O � U N CC N bA N O z — N �o � i N Cd s.. N 7 t v cv N 01 f6 W G A M B A & ASSOCIATES CONSULTING ENGINEERS & LAND SURVEYORS W—GA M c A E NG I N E ER I N—COM PHONE: 970/945-2550 FAX: 970/945-1410 113 NINTH STREET, SUITE 214 P.O. BOX 1458 GLENWOOD SPRINGS, COLORADO 8 1 602-1 458 G Sunday, March 09, 2003 Nancy MacKenzie Environmental Health Specialist Environmental Health Department 0405 Castle Creek Road, Suite 10 Aspen, CO 81611 (970) 920-5076 RECEIVED MAR I 1 2003 PITKNI COUNTY ENVIROP _ .-::NTAL H ALTH RE: ISDS Permit ex post facto for Garman/Zwanziger residence in Redstone Dear Nancy: To follo::- up on our conversation yesterday about *.his .or -permitted system, we have the following proposal to submit for your consideration. In a nutshell, this is what we propose to do. We will verify the size, and to the extent feasible, the condition of the drywell and the septic tank as installed and in place. We will verify separation to all features identified in Table H of the Pitkin County Individual Sewage Disposal System Regulation. We will have a profile hole excavated, and will perform percolation tests. We will prepare a complete ISDS permit package for the site, including recommendations for any improvements to bring elements of the system into compliance. The mechanisms and methods we propose to use are as follows. We will coordinate with an excavator, probably Duane Piffer, to have the top of all critical components exposed. This will include the septic tank access lids, and the whole top surface of the drywell. The exposure will be sufficient to determine the top area of the drywell, and to give an indication of how vertical the walls of the original excavation were. We will install a "TEE" where the pipe from the septic tank bends vertically down into the drywell. We will measure from the bottom of the pit to the bottom of the horizontal inlet pipe. We will then calculate a conservative area of the sidewall below the horizontal inlet pipe, and make a conservative estimate of the bottom area of the drywell, based on the best available evidence. Once the extent of the drywell is established, we will notify you, and request a site visit. We will find a spot fairly close by in the yard, the location to be determined based on safety, for both the inspector(s) and for the existing system, and excavate a series of holes. Some will be used to perform percolation tests at the various strata encountered, and at least one will be excavated to 4 -feet below the level of the bottom of the drywell, as determined by the previous measurement down the vertical drop -pipe. Garman/Zwanziger ISDS - Proposal for resolution to non permitted system - To Pitkin County Environmental Health Sunday, March 09, 2003 Page 1 of 3 f t Y The exposed septic tank will be examined for soundness, including all elements that can be inspected without fully excavating the tank. We will check to see if the manufacturer has placed a size label or stamp on the tank itself. In the absence of any manufacturers size label, the tank will be pumped out by a pump -truck equipped with a flow meter and the volume will be noted. We will obtain a copy of the pumping charges that show the amount removed from the septic tank. The tank will be inspected from above to the best of our ability, to confirm the location and heights of inlets, outlets, the baffle, and the crossover from the first part to the second. It is possible that not all of this can be determined from above. If this is the QN We will pre -wet the soil and perform percolation tests at all strata encountered. If any strata are found to be impermeable, they will not be used to calculate the weighted average percolation rate. The weighted average percolation rate, design load, and all applicable multipliers will be used to calculate the design. case, we will try and determine who supplied the tank, and what model/design was supplied. It may be possible to determine the height of the crossover by slowly filling the first tank with water, and noting the height from the floor when water first starts flowing into the second tank. We may be able to make a double verification of the volume of the septic tank by checking the water meter before and after re -filling the septic tank. We will document everything we find with notes and photographs. If you or an assistant wish to be present during the inspection of the tank, we will notify you a couple of days in advance. We do not intend to enter the tank, as this falls under the category of a permit - required confined space, certainly requiring breathing apparatus as well as all other elements of a confined space entry. Y Once the percolation rate is known, we will prepare a complete system diesign, including site plan and details, and permit application package, all in compliance with the latest approved Pitkin County Individual Sewage Disposal System Regulations, which to the best of our knowledge is the April 15', 2001 edition. One of the conditions on the checklist is the copy of the county 1041 approval. We presume that since this is an existing residence, in an existing approved subdivision, the issue of the 1041 approval is resolved; if this is not rhe ease, please let me know. In the event that the as -built area of the drywell is not sufficiently large to accommodate the conditions of loading, the design will include a proposal to increase the size of the existing drywell, if that is most feasible, or to provide an additional drywell site at the appropriate distance, should that prove more desirable. The design will include the addition of an effluent filter, either located in the septic tank, or in a separate tank if the existing tank is not suitable. The top surface of the finished drywell(s) including any additions will be covered with a filter fabric, and a pipe inserted into the TEE to extend to the surface, with a cap for future inspection and maintenance. Garman/Zwanziger ISDS - Proposal for resolution to non permitted system - To Pitkin County Environmental Health Sunday, March 09, 2003 Page 2 of 3 If the proposals that we have outlined above are acceptable to you, would you please so note in the space attached at the bottom of this letter. Space has been provided to make any comments you feel are appropriate, or if you believe more extensive revisions of this proposal are in order, please call me so that we can discuss them. Sincerely, Gamba & Associates, Inc. �!/ 2e& -moi cc: File: 03393 H:\03393\Proposed verification of system to PITCO.doc The foregoing proposal for the resolution of the non -permitted septic system at 360 Chair Mountain Drive, Redstone, CO 891623 is accepted in principal, with the express understanding that all work and finished product is to be in strict compliance with the Pitkin County Individual Sewage Disposal System Regulations, April 15', 2001 edition. This approval is without any further conditions. ❑ This approval is subject to the following additional conditions. j/3 Nancy Mac ie, Pitkin Countynviro mnental Health Specialist Garman/Zwanziger ISDS - Proposal for resolution to non permitted system - To Pitkin County Environmental Health Sunday, March 09, 2003 Page 3 of 3 J August 6, 2003 Nancy: Re: Garman/Zwanziger Property 360 Crystal Park Drive Redstone, CO Telephone: 704-0137 Parcel ID 2729-292-01-084 Joanne Zwanziger called. She said they had a call on their answering machine yesterday that their permit was ready. She said the caller left no phone number and she thought it might be for the septic system. I called Nancy Bailey in Community Development to see if they had made the call and to ask what they are getting a permit for. The following are permits recently issued: • Mechanical permit was issued 8/5/03 for a fireplace/gas insert. • Plumbing permit is ready to be issued for new fixtures and relocation of fixtures • Permit issued for addition on 4/15/2003. Said had waiver for septic because of no additional fixtures. Permit #0359-2003 Nancy Bailey thought you might want to come by and look at their file. To: From: Fac q1 0 Pages: (/ Phone: Re: Date: CC: phone 970-920-5070 fax 970-920-5077 0405 Castle Creek Rd, Aspen CO 81611 G A M B A & ASSOCIATES CONSULTING ENGINEERS & LAND SURVEYORS W—G AN e A ENG IN EER, NG -M PHONE: 970/945-2550 FAX: 970/945-1410 113 NINTH STREET, SUITE 214 P.O. BOX 1458 GLENWOOD SPRINGS, COLORADO 81 602-1 458 • Wednesday, August 13, 2003 Nancy MacKenzie Environmental Health Specialist Environmental Health Department 0405 Castle Creek Road, Suite 10 Aspen, CO 81611 By email to nancym ci.aspen.co.us Original by mail (970) 920-5076 RE: Final inspection of Garman/Zwanziger septic system. Dear Nancy: RECEIVED AUG 15 2003 PIW4 N COUNTY ENVIRON,MCINTAL HEALTH I made a site visit last evening and confirmed that Duane Piffer has installed the Orenco systems Biotube filter per the drawings submitted to you last week. With this final work complete, I believe that all elements of our March 91h letter to you have been satisfied. Please call if you have any questions. Sincerely, Gamba & Associates, Inc. Page, P.V35161 cc: Judy Garman & JoAnn Zwanziger; Duane Piffer; File: 03393 H:\03393\Final inspection of system to PITCO.doc Garman/Zwanziger ISDS - Letter of final inspection - To Pitkin County Environmental Health Wednesday, August 13, 2003 Page 1 of I PITKIN ENVIRONMENTAL HEALTH DEPARTMENT ISDS DESIGN CALCULATIONS Owner's Name Parcel ID # House Size (sq. ft.) (75 gpd, 100 gpd, or 130 gpd) Number of Bedrooms in Main House Number of Offices, Libraries, Studies, Similar -sized Rooms in Main House Number of Bedrooms in Detached Caretaker unit Number of Offices, Studies, Similar -sized Rooms in Caretaker Unit (If the caretaker unit is ATTACHED, treat as if part of main house.) Average Daily Waste Flow 450 State Review Required? no Perc Rate (T) Design Flow (Q) = # potential bedrooms X 2 people/bedroom X gpd X 1.75 Q= 787.5 Minimum tank capacity 984.375 gallons Absorption Area (=Q/5 X SQRT perc rate) A = 649.38914 sq. ft. of absorption area required 42 gravelless chamber units without reduction # of Perc Holes Required: 3 1 in every soil type? Spaced uniformly over proposed area? A maximum : 50% only if the lot size and soil conditions are optimal. If a reduction is being proposed, describe why lot size and soil conditions are optimal: 75 A = 324.69457 sq.ft. with 50% reductionTRENCHES 454.5724 sq ft 30% reduction BED 1 gravelless chamber units with reduction 19 chamber units with reduc. Type of system: []Absorption trenches []Absorption bed [] Gravelless chambers []Dry well []Seepage Pit []Other (type) SETBACK FROM WELL # of feet = 100 SETBACK FROM POND, STREAM OR IRRIGATION DITCH # of feet = 50 SETBACK FROM DRY GULCH # of feet = 25 12 k PITKIN COUNTY ENVIRONMENTAL HEALTH DEPARTMENT SEPTIC SYSTEM APPLICATION CHECKLIST NOTE: SEPTIC PERMIT APPLICATIONS CANNOT BE ACCEPTED UNTIL ALL OF THE INFORMATION BELOW IS INCLUDED. The soils test must be done by a Registered Professional Engineer. The ISDS design must be done by a Colorado Registered Professional Engineer (RPE) or an individual performing engineering services for themselves. Note: and individual may provide ISDS engineering servcies for themselves provided the dewelling the ISDS serves is his/her primary residence. You should plan to meet with the RPE at your site to discuss where the soils tests should be done to meet all of the County regulations and where you want to put your house. The RPE will be your contact for issues you want to discuss about your system's size and location. Each box should be checked to indicate the following have been submitted before the application can be accepted. X Environmental Health has been called to look at profile hole. May, 2003 X Completed application form. X Engineer design stamped by a RPE registered in the State of Colorado. (One set). Design must be based on the Pitkin County ISDS Regulation, Revised 2001. X Site map must include locations of all existing and proposed wells within setback distances (including on surrounding properties), contour intervals, all proposed and existing buildings, property lines, ditches, slopes of greater than 15% in the area of the drain field, water lines, sprinkler systems, springs, suction (irrigation) lines, drinking water cisterns, drain tiles, irrigation ditches, lakes, ponds, water courses, streams, floodplains, floodways, dry gulches, or existing septic systems. This must include all such features on neighboring properties within setbacks. ❑ Complete building floor plans. Floor plans should be 11 x17. (One set) `J` Proof of adequate water supply: (Well must be drilled before septic permit can be issued.): For private wells, recent well driller's pump test showing gpm actually produced, well permit showing legal supply. The minimum yield from the well or water storage shall be .07 gallons/minute/person, which is 100 gallons/person/day. There must be storage or yield capable of a 24-hour supply for domestic purposes only (not including fire protection or irrigation). For community systems, proof there is adequate water for all houses served by the system. Proof of adequate water quality with bacteriology test: Aspen Consolidated Sanitation District and Snowmass Water & Sanitation District perform this test locally. X Percolation tests. ❑ All ISDS Permit fees are $600 to cover first six hours of processing. Hourly rate of $100 will be charged beyond first six hours, up to $1,000. Tank only fee $150. Please make check payable to: Pitkin County Environmental Health Department. N/A Copy of county approval (1041 approval, subdivision approval, etc.) EXISTING BUILDING You must obtain written approval from Community Development before submitting this application if your septic system is outside the building envelope and any part of the system is more than 30" above grade. A WAIVER IS AVAILABLE FOR SUBMITTING A BUILDING PERMIT APPLICATION PRIOR TO OBTAINING AN INDIVIDUAL SEWAGE DISPOSAL SYSTEM PERMIT. Please ask the Community Development Dept. or Environmental Health Dept. for further information. H:\03393\Application Checklist.doc Last printed 8/4/03 5:47 PM Sunday, August 10, 2003 Nancy MacKenzie Environmental Health Specialist Pitkin County Environmental Health 0405 Castle Creek Road, Suite 10 Aspen, CO 81611 Copy by email to: nancymAci.aspen.co.us Original by mail. Dear Nancy: The following is the soil information for the Garman-Zwanziger Residence, existing, non -permitted septic system, located at 360 Chair Mountain Drive in Redstone, Colorado. The existing drywell system has an upper area of approximately 15' by 15', and a depth to the bottom of the vertical standpipe of 15' below the invert elevation, which is about 18.2' below existing ground at the cleanout. A soil pit approximately 22' in total depth was excavated by Duane Piffer, just outside of the existing drywell site. The excavation revealed neither ground water nor bedrock to the depth of the profile hole. This hole was observed by you and I in May of 2003. Soil Classification of the profile hole is as follows: 0" to 4" Dark Brown organic soil and grass. 4" to 22' Dark Red, sandy, silty, clayey soils with no significant rocks. The entire depth of soil below the organic topsoil was highly homogeneous, and appeared to be weathered conglomerate from the formations above the Crystal River Park subdivision. Gamba & Associates, Inc. performed percolation testing just outside of the existing drywell area in order to evaluate the as -built system for adequate size. Percolation tests were performed on two separate occasions, first on April 17th, then again on May 13th, 2003. In the initial tests, conducted in the afternoon of April 17th, three sites for percolation test holes were excavated using a track -hoe at depths of 4', 8.4' and 14'. Approximately 10" diameter holes were then hand excavated to provide percolation test holes having final depths below existing ground of 6.5', 9.6' and 15' respectively. The test holes were thoroughly pre-soaked the night before the test by Duane Piffer, and a light snow fell overnight. The ground was very wet and over -saturated on the day of the test. The results of the first day's percolation testing were highly uniform, two were essentially identical, and the third was within 5% of the others. All were too high to permit a drywell, being well over the 60 min./in. allowed maximum rate. Examination of the bottoms of all three percolation test holes on the morning of April 18th revealed that the clay fraction of the soils had sloughed off the test hole walls and coated the bottom of the test pits. Samples from the very bottom depth (22') and all three other Page 1 of 2 Gormasanziger Residence — ISDS ✓ Percolation Testing Results depths listed above were collected, and "jar tests" were performed as a means of evaluating the approximate percentage of silts and clays present. The results of the jar tests indicated that approximately 10% by volume of the soil was CLAY, 12% was silt or extremely fine sand, and the remaining 78% was fine sand. These results were very uniform for all jar tests performed. These results, the uniformity of the previous percolation tests, the very wet conditions at the time of the test, and the heavy clay layer found in the bottom of the percolation test holes led us to perform an additional percolation test on May 13th. A discussion was held on-site with you, at the time you witnessed the profile hole, and because the soil was so uniform and homogeneous, and because of access and safety concerns at the 22' depth, we decided to perform a single additional test to be used as the design basis. This test was performed in a slightly different manner than the three original tests, and we believe that it is more representative of the actual drywell conditions, and the results were more consistent with surrounding properties. A site was prepared at the 10' depth from existing ground, and a hole approximately 10" in diameter was hand excavated an additional 2' below the platform. The sides of the hole were thoroughly roughened, to reduce smearing of the sidewalls, and all loose material was removed from the bottom of the hole. A one -foot thick layer of gravel was placed in the bottom of the hole, which more closely resembles the actual conditions in a typical drywell. The percolation test was performed over a period of 1 hour and 20 minutes, during which time the water level fell 9.72 inches. The results are presented on the attached "Percolation Test Results Form — May 13th, 2003. The average rate was 9.78 min./in. For a more conservative design basis, the highest value of the percolation rate (rounded up to the nearest even minute) was used: 17 min/in. If you have any questions, please do not hesitate to call. Sincerely, Gamba & Associates, Inc. T. Carter Page, P.E. 35161 Enclosures: Garman-Zwanziger - "Percolation Test Results Form — May 13th, 2003 HA03393MILS.doc Page 2 of 2 i 0 m co d X N N (6 - 0 L) N CL LQ � Q M "o \�o r` r` 1,0 r` M M Vl W) IC 00 00 C C� W CL W H � u O N N O O N O 00 00 W O O O O O O O O O O O O O O O O O O O a .a o � N Q M 0 0 0 0 0 0 0 0 0 M 0 M 0 M 0 M 0 0 0 0 0 0 W w0 O O O O O O O O O O O O O O O O O O O O w � � � Ca w � ao � Qo^ Ic N 00 M 00 ":t CT ^ t C` O M 00 O M [� N N N N N N N N N N N N N N N N N N N Q a W A W Q � 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 a E� 0 0 0 0 0 0 0 0 0 0 0 0 0 0 z N N N N N N N N N N N N N N N N N N N N N N ^ N "o N O M d M M�"I: U1 n W) 0 "o 0^7'^ O It00 N N F- N N N N N N N N N N N N N N N M M M M M M O .Y Q � Q Q � OG N •N O � 0 i 0 m co d X N N (6 - 0 L) N CL NEVA MAIN LEVEL PLAN I. REMO& DCISrm WOOD PAN3JN6. N%"TE pFO5FP DMMIOR WALL CAVITIES. 5FfEiROCK WAIS RffIX.E 51t>=TRC'rK ON CELN&S AS READ. 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