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HomeMy WebLinkAbout03490------------- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - • I.{ I J ~ { () { ~ · '5CJ' lV _ki/t~l!-.{}' lQ, b--<-~;,v'-._ . . • • • GARFIELD COUNTY BUILDING AND SANITATION DEPARTMENT Permit N~ 3490 109 8th Street Suite 303 Assessor's Parcel No. Glenwood Springs, Colorado 81601 Phone (303) 945·8212 INDIVIDUAL SEWAGE DISPOSAL PERMIT PROPERTY This does not constitute a building or use permit. Owner's Namellil1\QQ Co\,,)$[1""{\ ~!!~resent Addresffi.J ]fJR.Ji!t.:U) GS Phone 3 '/{5 System LocationOlo"J K r±uob \~A b A • )j QO/VU. xnd. jF'>)\µy\ ~ ~ -'l ( 't' \:) Legal Description of Assessor's Parcel No. ------- SYSTEM DESIGN ______ Septic Tank Capacity (gallon) Other ______ Percolation Rate (minutes/inch) Number of Bedrooms (or other} ____ _ Required Absorption Area -See Attached Special Setback Requirements: Date __________________ Inspector-------··------·------------ FINAL SYSTEM INSPECTION AND APPROVAL (as installed) Call for Inspection (24 hours notice) Before Covering Installation System Installer _______ _ Septic Tank Capacity ______ ._. _________ ·-_______________ -· -· Septic Tank Manufacturer or Trade Name _____ _ Septic Tank Access within 8" of surface ____________________ -----------·--·--··----··----------- Absorption Area ------· ----· ----·-··----------------- Absorption Area Type and/or Manufacturer or Trade Name------- Adequate compliance with County and State regulations/requirements ________ _ Other __________ _ Date _ _,_/l2--'-'-'~""'f'--J,___,,2~<!XJ=~ Inspector :J~u -<JSt!!I: / Gom/,, n /tJ1'd(£1e ~ RETAIN WITH RECEIPT RECORDS AT CONSTRUCTION SITE •CONDITIONS: 1. All installation must comply with all requirements of the Colorado State Board of Health Individual Sewage Disposal Systems Chapter 25, Article 10 C.R.S. 1973, Revised 1984. 2. This permit Is valid only for connection to structures which have fully complied with County zoning and building requirements. Con~ nection to or use with any dwelling or structures not approved by the Building and Zoning office shall automatically be a violation or a requirement of the permit and cause fc1r both legal action and revocation of the permit. 3. Any person who constructs, alters, or installs an individual sewage disposaj system in a manner which involves a knowing and mater( al variation from the terms or specifications contained in the application of permit commits a Class I, Petty Offense ($500.00 fine-6 months In jail or both). White -APPLICANT Yellow -DEPARTMENT ' I INDIVIDUAL SEWAGE DISPOSAL SYSTEM APPLICATION . ' OWNER ~ ~ ADDRESS ~tfs7 ~ ~ ~J.rr CONTRACTOR~-----'-'---------------------­ ADDRESS~----------------PHONE ________ _ PERMIT REQUEST FOR ( ~ NEW INSTALLATION ( )ALTERATION ( )REPAIR Attach separate sheets or report showing entire area with respect to surrounding areas, topography of area, habitable building, location of potable water wells, soil percolation test holes, soil profiles in test holes (See page 4). LOCATION OF PROPOSED FACILITY: JJ. /) },_,. ., + Near what City of Town ~ ~ Size of Lot .,,_ ~ Legal Description or Address .:t<A-I ~ LU~ ~ WASTES TYPE: ( yDWELLING ( ) TRANSIENT USE ( ) COMMERCIAL OR INDUSTRIAL ( ) NON-DOMESTIC WASTES ( ) OTHER-DESCRIBE _______________ ~ BUILDING OR SERVICE TYPE: _ _!5:./4.~d!::!·~J:<::t ·:::::t::~fl=:''.._ ______________ _ ? Number of Bedrooms 4 Number of Persons __ · ____ _ ( ) Garbage Grinder ( t.7Automatic Washer (t--Yf>ishwasher SOURCE AND TYPE OF WATER SUPPLY: ( ) WELL ( ) SPRING ( ) STREAM OR CREEK If supplied by Community Water, give name of supplier:--=W-"li1/X-'-__ L_.___;_~----------­ DISTANCE TO NEAREST COMMUNITY SEWER SYSTEM:_-'-~---------- Was an effort made to connect to the Community System? ___ /Yl.<> ____________ _ A site plan Is required to be submitted that Indicates the following MINIMUM distances: Leach Field to Well: 100 feet Sepdc Tank to Well: SO feet Leach Field to Irrlgadon Ditches, Stream or Water Course: SO feet Sepdc System to Property Lines: 10 feet YOUR INDIVIDUAL SEWAGE DISPOSAL SYSTEM PERMIT WILL NOT BE ISSUED WITHOUT A SITE PLAN. GROUND CONDITIONS: Depth to first Ground Water Table ______________________ _ Percent Ground Slope __________________________ _ 2 TYPE OF ~IYipUAL SpWAG¥ DISPOSAL SYSTEM PROPOSED: fl ( ) SEPTIC TANK ( ) AERATION PLANT ( "'f VAULT ( ) VAULT PRIVY ( ) COMPOSTING TOILET ( ) RECYCLING, POT ABLE USE ( ) PIT PRIVY ( ) INCINERATION TOILET ( ) RECYCLING, OTHER USE ( ) CHEMICAL TOILET ( ) OTHER-DESCRIBE. ___________ _ FINAL DISPOSAL BY: ( ")' ABSORPTION TRENCH, BED OR PIT ( ) UNDERGROUND DISPERSAL ( ) ABOVE GROUND DISPERSAL ( ) EV APOTRANSPIRATION ( ) SANDFILTER ( ) WASTEWATER POND ( ) OTHER-DESCRIBE, _____________________ _ WILL EFFLUENT BE DISCHARGED DIRECTLY INTO WATERS OF THE STATE? __ ~--=----- PERCOLATION TEST RESULTS: (To be completed by Registered Professional Engineer, ifthe Engineer does the Percolation Test) Minutes, _____ ,,er inch in hole No. 1 Minutes _____ _,,er inch in hole NO. 3 Minutes er inch in hole No. 2 Minutes er inch in hole NO. Name, address and telephone ofRPE who made soil absorption tests:. ______________ _ Name, address and telephone ofRPE responsible for design of the system: ____________ _ Applicant acknowledges that the completeness of the application is conditional upon such further mandatory and additional tests and reports as may be required by the local health department to be made and furnished by the applicant or by the local health department for purposed of the evaluation of the application; and the issuance of the permit is subject to such terms and conditions as deemed necessary to insure compliance with rules and regulations made, information and reports submitted herewith and required to be submitted by the applicant are or will be represented to be true and correct to the best of my knowledge and belief and are designed to be relied on by the local department of health in evaluating the same for purposes of issuing the permit applied for herein. I further understand that any fillsification or misrepresentation may result in the denial of the application or revocation of any permit granted based upon said application and in legal action for perjury as provided by law. Signed _=..~:::.::...:::.=-_dJ-____ _ Date. __ 4_-_,_i_-_0 _1 ______ _ PLEASE DRAW AN ACCURATE MAP TO YOUR PROPERTY!! 3 . "" Designate North Arrow l...6lt4 Your Neighbor's Name & Address , Your Plot -Shape to Fit (No Scale) I h -t I -• S.-~ 1 • ~I ~ v It ~ t-1-uc:oe 1AJ&ee... oic,vc Locate well, all streams, irrigation ditchs, and any water courses. Draw in your house, septic tank & system, detached garages, and driveway. If a change oflocation is necessary, you must submit a corrected drawing, before a Certificate of Occupation will be issued. County Road (Note the Road Number and Name) -~'tJiot..loc / 3AJ ' ' Lv T ft:, Your Neighbor's Name & Address r----------' ... , INDIVIDUAL SEWAGE DISPOSAL SYSTEM DESIGN FOR LOT 15, FILING 4, WESTBANK MESA ,,,,,, ... (((((( MAY 4, 2001 Prepared for DEM CO Pr&pared by Dan. J. Cokley, P.E. Schmueser Gordon Meyer, Inc. 118 West 6th Street, Suite 200 Glenwood Springs CO 81601 970.946.1004 ' . . ··---·-·s···· -··--.··--·-·-·-... '. ...... -···-·-···· ... ····· . ·. . ~---.. · _ _s~~-tv!_LJE_~E~I_ GORDON I MEYER ENGINEERS & SURVEYORS GLENWOOD SPRINGS I I 8 W. 6TH, SUITE 200 GLENWOOD SPRINGS, CO 8 I 60 I 970-94!5· I 004 ASPEN P.O. BOX 2 I 55 ASPEN, CO 81812 97C>-Q25-6727 -----------May 7,· 2001 · .. · . Mr. Gary Heisel 01137 Fairway Lane Glenwood Springs CO 81601 FX: 970-945-5948 RE: Individual Sewage Disposal System (ISDS) Report Proposed Residence, Lot 15, Westbank Mesa Ranch Garfield County. Colorado Dear Gary: FX: 970-925-4157 Per your request, Schmueser Gordon Meyer has evaluated the design of the proposed septic system to service the residential flows from the proposed residence located at Lot 15, Westbank Mesa Ranch in Garfield County, Colorado. Based upon review of your drawings, we understand that the design of the individual sewage disposal system will be designed for a four-bedroom home. H-P Geotech has conducted an on-site soils investigation, i.e .. pare test), and we have attached the results hereto. H-P Geotech has identified the percolation rate for this property to range from 20-60 minutes per inch. The soils investigation did not identify the presence of groundwater or bedrock within the upper eight feet of soil at the site of the disposal field. A summary of the observed soil types identified that the septic system (or leach field system) is to be installed in slightly sandy to sandy clay and silt. Based upon percolation test results and the soil observations, it appears that a standard leach field system can be installed on this site. This, of course, assumes that setback requirements can be met in accordance to Colorado State Health Department regulations. Accordingly, we have attached a table from the Colorado Department of Public Health & Environment ISDS regulations, which identify the required setbacks for each component of the septic system installed. The proposal for this site as far as method of disposal considers the use of a standard "infiltrator" system. This system, as proposed, will be installed in a trench-type fashion. Accordingly, we have attached manufacturer's product information regarding the infiltrator and the infiltrator system installation. To briefly describe the septic system as a whole, it is proposed to collect the effluent from the main waste line from the house to a 1250 gallon septic tank. Please note that this 1250 gallon concrete septic tank does have alternative installations available. These alternative installations can be considered, considering the fact that no evidence of high groundwater is present. The alternative ../_ --· ----s-- ---=-May 7, 2001 ____ Mr, Gary Heisel Page 2 installations that can be considered with this type of septic tank is a fiberglass septic .. . --- tank also equal to 1250 gallons. We have not provided information as to a specified manufacturer or product line for fiberglass septic tank. Please note that the septic tank must be located at least five feet away from the residence. In addition, the effluent line leaving the house and going to the septic tank must be straight in alignment and straight in grade. If it is deemed necessary that a change in alignment and/or grade in this main line from the house to the septic tank is required, a cleanout will be necessary to accompany the installation. This main line coming from the house to the septic tank must be a minimum 4" diameter. The grade of the pipe must be a minimum of % " per foot. If it becomes necessary that a main line must cross a traveled area (i.e., vehicular access), we would then recommend that the pipe specifications be increased in strength to no longer utilize an ASTM 2729 designation but, rather, use a Schedule 40 PVC. To compensate for differential settling between the septic tank and the incoming and outgoing piping, we would recommend that the piping coming into and leaving the septic tank be sleeved in a 6" diameter caste iron or Schedule 40 PVC. Once the effluent line leaves the septic tank, it will need to proceed towards the infiltrator trench system at a y." per foot grade. Again, the minimum diameter of this pipe would need to be 4". We would recommend that, from this point to the infiltrator system, location of the infiltrator system and piping be coordinated such that no vehicular access is allowed over the piping or the infiltrator system. Additionally, with this recommendation, we would then maintain that the ASTM 2729 PVC piping be utilized. For the disposal system itself, we would recommend that a minimum of three infiltrator trenches be installed. We have attached our calculations which define the length of infiltrator trench necessary, as well as the number of infiltrator units necessary per trench. The closest spacing that the infiltrator units can be installed is 10 feet on center. The infiltrator units must be placed in a flat trench. We have attached a sketch which identifies the typical piping requirements to equally distribute flow to each of the infiltrator trenches. As previously discussed, we have attached the manufacturer's literature regarding the infiltrator system. With the manufacturer's literature, is a detailed list of instructions regarding the septic system installation. You will note that the backfill required over an infiltrator trench is native backfill. This native backfill is acceptable for fill over the trenches as long as 6" and larger rock is not allowed in the backfill. The minimum requirement of 12" of cover over the infiltrator system is also icientified. Please note that the infiltrator must be installed in an excavated trench, not in fill. The bottom of trench shall be into the soils 4-5 feet to take advantage of the design perc rate of 35 ' . ~ 6 --~---L- ---May 7, 2001 _ __ Mr"_Gary Heisel Page 3 mpi. "f!1e maximum final depth of the system is 42"; therefore, grading to remove overburden must be done above the system. -As mentioned throughout this report, a number of attachments are included with this report. Please find the following list, which identifies specifically the attachments in order: 1 . Calculations of leach field and septic system sizing. 2. Table of minimum horizontal setbacks. 3. Percolation test results. 4. Schematic plan view of septic system installation. 5. Sketch of the standard infiltrator chamber. 6. Infiltrator manufacturer's literature. 7. Septic system installation instructions (from Infiltrator manufacturer literature). Some general notes that must be mentioned regarding any septic system installation are as follows: 1. All materials, installation practices and setback requirements shall comply with Garfield County Individual Sewage System Regulations. 2. The infiltrator trench shall be constructed so that the bottom level of the trench is ± 0. 1 inches. Place trench in natural ground, no portion of the trench shall be placed in fill. Once backfilled, provide positive drainage way from the trenches. 3. The area disturbed by construction shall be reseeded by native grasses to prevent erosion. 4. Use risers as needed to bring septic tank access hatches within 6" of finish grade. 5. Locate septic tank such that the access to the tanks can be accommodated for future pumping. 6. The Contractor and Owner shall take whatever measures are necessary to assure that (a) the septic tank and sewerlines are completely watertight to prevent infiltration of groundwater in the system, and (b) the system is installed to prevent freezing of the gravity sewerlines. No irrigation to be allowed over trenches. • --s--~c_J~--• ----------May-7,-2001 --- ____ Jo{!r.. _Gi;iry Heisel Page 4 7. The Engineer and Garfield County Sanitation Department shall be notified ·when construction commences and kept abreast of the construction progress so that sufficient inspections can be performed to assure conformance with this report. -8. It is the Contractor's responsibility to verify all locations of utilities and setbacks that may be affected by the installation of the septic system. Verification of all utility locations shall be made with the appropriate utility company. 9. Substitution of materials (i.e .. pipe, tanks, etc.) is acceptable, provided verification and acceptance by the Engineer and the Garfield County Sanitation Department is made. As you can gather from reading this report, we are leaving the specifics (i.e .. exact location, grades and elevations) of the installation of the system to the Contractor and/or yourself. It is important to note, however, that the location of the septic system must be provided in the same general location of that identified with the boring lots of H-P Geotech. In essence, if the septic system is located on a site different than where the percolation test was taken, verification of the perc rates must be made by SGM prior to final installation of the leach field. If it is determined that the information as provided is not of sufficient detail for your Contractor and/or yourself to construct the system, please notify us immediately and we can provide a detailed construction plan for the system. To accommodate such a detailed construction plan, SGM would have to coordinate with you, collection of detailed topography in the area of the proposed septic system. Aside from the comments just made, I hope this information is of sufficient detail to accommodate your needs in installing this septic system. If you have any questions or comments, please call. Sincerely, Dan Cokley, P.E. DC:lc/01-171a File: 2001-171.001 Enclosures • · • lNDJVIDUAL•SEWAGE DISPOSAL CALCULATIONS FOR PROPOSED HEISEL RESIDENCE, LOT 15, WESTBANK MESA RANCH GARFIELD COUNTY, COLORADO 1. Determine flows: · 4-bedroom in proposed residence · 2 persons/bedroom/day 76 gpd/day Total average daily flow = (5)(2)(75) = 750 gpd 2. From H-P Geotech report: Percolation rate for design 35.0 mpi 3. Required septic capacity: For a 4-bedroom home = 1250 gallons 4. Determine field area: For absorption: Where A = field area a = flow rate T = percolation A = [(Q)SqRt(T)) + 5 A = [(750)SqRt(35.0)) + 5 A= 709.9 SF 5. Peak flow at 150% per Colorado Department of Public Health & Environment Regulations and adjust field size accordingly. 1.5 x 709.9 SF = 1064.9 SF 6. Areal adjustment to bed size for use of infiltrator. Decrease area by a factor of 50% A = 1064.9 x 0.5 = 532.5 SF 7. Areal adjustment to bed size for washer. (Factor by 1 .4) A = 532.5 x 1.4 = 745.5 SF 8. Determine number of infiltrator units. 745.5 SF + 15.5 SF/unit = 48 units Install 48 standard infiltrator units in trench configuration. • • • ~tech April 25, 2001 DEM CO Attn: Gary Heisel 0187 Fairway Lane Glenwood Springs, Colorado 81601 ~ Hepworth-Pawlak Geotechnlcal, Inc. 5020 County Road 154 Glenwood Springs, Colorado 81601 Phone: 970-945· 7988 Fax: 970-945-8454 hpgeo@hpgeotech.com Job No. 101 120 Subject: Percolation Testing, Proposed Septic Disposal System, Lot 15, Filing 4, Westbank Mesa, Garfield County, Colorado. Dear Mr. Heisel: As requested, a representative of Hepworth-Pawlak Geotechnical, Inc. conducted percolation testing at the subject site to evaluate the feasibility of an infiltration septic disposal system. The results of our work are presented in this report. We previously conducted a subsoil study at the subject site and presented our findings in a report dated January 23, 2001. Three percolation test holes had been dug in the bottom of the backhoe pits and soaked by the client prior to our testing. The location of the percolation test holes .is shown on Fig. 1. The soils exposed in the percolation holes are similar to those exposed in the pits excavated for the prior subsoil study and consist of slightly sandy to sandy clay and silt. Groundwater was not observed in the test holes. Percolation tests were performed on April 19, 2001 by a representative of Hepworth- Pawlak Geotechnical, Inc. The percolation test results are presented on Table I. The percolation test results indicate an infiltration rate of between 20 and 60 minutes per inch. The tested area should be suitable for an infiltration septic disposal system . . ,. If there are any questions or if we may be of further assistance, please let us know. Sincerely, Rev. by: SLP JZA/ksw attachments PITS EXCAVATED FOR PREVIOUS STUDY -.::---- --- ----HtJE:-=B:.I~GSR -DRIVE PROPERTY/ t-1--BOUNDARIES 1 ----- --6220 ,,..--6230 - APPROXIMATE SCALE: 1"=60' I I 101 120 LOT 16 -------- LOT 15 ------ ----- I -1---- ------ -6240 6250 6260 -6270 6280 - - - ----l__ 6290 --------I - - - --6300 ------------6320 - I/ A -. -6330' ---63.40. --- --6350 --/ -- --6360 / / . ---6370 / / . ./ / --6380 ~ ,,......... -6390 - I I / / ~--/ ----~ _ -6400 I -----/ OPEN SPACE - -------_j 6310 LOT 14 HEPWORTH-PAWLAK GEOTECHNICAL, INC. LOCATION OF PERCOLATION TEST HOLES Fig. 1 • HEPWORTH-PAWLAK GEOTECHNICAL, INC. TABLE I PERCOLATION TEST RES UL TS JOBNO. 101 120 HOLE NO. HOLE DEPTH LENGTH OF WATER DEPTH WATER DEPTH DROP IN AVERAGE (INCHES) INTERVAL AT START OF ATEND OF WATER PERCOLATION (MINI INTERVAL INTERVAL LEVEL RATE (INCHES) ·(INCHES) (INCHES) (MIN./INCH) P-1 48 16 6% 6 % 6 6% % 6% 6% % 6% 6 % 6 4 '!4 % 4 '14 4% % 4% 4%. % 4% 4 . % 60 P-2 60 16 6% 6 % 6 6% % 6% 6 % .5 4% % . 4% 4 % 4 3% % 3% 3% % 3% 3 % 46 P-3 72 16 7% 6 1 % 6 4 '14 1% 4 '14 3 '14 1 3 '14 2 '14 1 refill 6 6 1 6 4% l4 4% 3% l4 3% 2 l4 l4 20 Note: Percolation test holes were dug in the bottom of backhoe pits and soaked by the client prior to our testing. Percolation tests were conducted on April 19, 2001. The average percolation rates were based on the last three readings of each test. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ------- ' . NOTE: SETBACK FROM HOUSE TO TANK" 5 FT. MIN. PROPOSED RESIDENCE SETBACK FROM HOUSE TO TRENCH= 25 FT. MIN. 1+---4• DIA. ASTM 2729 PVC PIPE AT 1/4"1FT. SLOPE DISTRIBUTION LATERALS ~ 4• DIA. ASTM 2729 PVC PIPE ~I AT 1/4.IFT. SLOPE --14_1---SEPTIC TANK - HEADER PIPE~ 4• DIA. ASTM 2729 PVC AT 0% SLOPE (IE., FLAT) NOTE: INSTEAD OF INSTALLING THE ~ ' NOTE: AL THOUGH NOT REQUIRED, INSTALLATION OF INSPECTION PORTS AT THE BEGINNING OF EACH DISTRIBUTION LATERAL IS RECOMM- ENDED. HEADER PIPE, THE CONTRACTOR MAY OPT TO PLUMB EACH PIPE TO INF. TRENCH DIRECTLY FROM THE SEPTIC TANK.) J,-----1+====1-r' USE EQUAL# OF INFILT. UNITS PER TRENCH INSTALL 4• DIA. "'"~tt:::::::::::JH------+ VENTS (1 PER ~ • TRENCH AT THE '-'-... (TRENCHES TO BE LAID FLAT AND PARALLEL TO SLOPE.) END OF INFILTRATOR RUN(S) I· 10' MIN. ~1-10'MIN. CENTER OF CENTER OF TRENCH TRENCH CENTER OF TRENCH SCHEMATIC PLAN VIEW OF SEPTIC SYSTEM INSTALLATION 03/12103 WED 10: 14 FAX 1 970 945 5948 ' e ' SCHMUEf;E;R ' r:NC!Nli:l:.RS I G()RDON 'i MEYER & ~URVC't'ORS Hr. Gary Heisel 0161 Fairway lane Glenwood Springs, CO 61601 FAX: cpzo> 945-fi4:H RE: Westb1nk Men, Lot 15, ISDS SCHMllESER GORDON MEYER CL£oiwooo SAAi"'(;.~ I 1 S w, {)TH. SUITt' 200 OLE'. .. wooo SPP.1 .. r:.t,, C.C> b I a.al 270·P4!>-I 004 "'lt. 970-0<l~·SP_..O ...... "'-0-eox i 1 ss "'?!"'~""'· CQ e1a1z V70-Cll6-6,2'7 Fl< Q70-Gt:,·4 I t.7 CR£ST~o bl/TTI: "'o eox 30&8 970-349-~3.:t:I lit!OOl n: Q70·.:'.l.o!D-~J6e RECEIVED MM~ I ~' 7003 GAkf-IE:LD COUNTY BUILDING & PLANNING rhe purpose of this letter i• to provide to you a r•cord that the ISDS for tho 1bove refertnced lot was inslallod per the lethr Report d1ted Hay 7, 2001 by SGM. On Hay 8, 2001, I observed the completed ISOS and found it to bo constructed in accordance with the letter report I have copied the Garfield County Building Department with this letter and the attached ••-built of the !SOS prepared by you. Sincerely, Dan (okley, P.E. (athy, FAX 364-34 70 I •,,, I .'I : ~ . - - -------------------------------------------------~----- - - -03112103 WED 10:15 FAX 1 970 9f5 59t8 SCllMllESER GORDON MEYER lo1!002 " • \ , 1~5 I I J7' _J ,· ( 11 =3o'