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HomeMy WebLinkAbout02421 r m ..wr.. .`. m i .F;..ry�`F!a ,: ?nw*",; af?" r.. ^rt+ne++�ae .. ..,.,,,.....z.��t.+. m• w .., *1 . .. 1 * 3P GARFIELD COUNTY BUILDING AND SANITATION DEPARTMENT Permit N' 2421 k $ 109 8th Street Suite 303 Assessor's Parcel No. ' Glenwood Springs, Colorado 81801 N ii Phone (303) 945 -8212 t( E : This does not constitute 1 INDIVIDUAL SEWAGE DISPOSAL. PERMIT a building or use permit. PROPERTY (" Owner's Name Troy Clark Present Address 0077 Ptarmigan Ur. G. S. Phone_ 945.2656 ¢ ` r System Location Lot 17. Springridse. 0466 Springridge Drive, Glenwood Springs N Legal Description of Assessor's Parcel No. SYSTEM DESIGN P Septic Tank Capacity (gallon) Other 5 Percolation Rate (minutes /inch) Number of Bedrooms (or other) ;' Required Absorption Area - See Attached r ' . 4 Special Setback Requirements: I y Date Inspector 4 FINAL SYSTEM INSPECTION AND APPROVAL (as installed) li!!f Call for Inspection (24 hours notice) Before Covering Installation $ t // 1 i 0 System Installer_ t-(/ 1 1 F R e Septic Tank Capacity / 2 5- I e¢ Septic Tank Manufacturer or Trade Name C n l0 Z ft- N cl 4 `,; Septic Tank Access within 8" of surface lj'r i 1i ` ,�J 6 l Absorption Area RD 7 ■✓ /! r 'r1-4/- -)L2 ' _= __/ An ` 't 4 r % 0 .1j 1;' Absorption ArezeType and /or Manufacturer or Trade Name 7 77 1j 4 / t% lr 1/ -p. 'I- - P > Adequate compliance with County and State regulations /requirements_j_ -- - - -- - -- - - t i It P Other 4 ( Date ; 7 1 Inspector � _' -__ rL r. . S) RETAIN WITH RECEIPT RECORDS AT CONSTRUCTION SITE ii •CONDITIONS: ( f 1. All installation must comply with all requirements of fhb Colorado State Board of Health Individual Sewage Disposal Systems Chapter N° 1 25, Article 10 C.R.S. 1973, Revised 1984. i . 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 for both legal action and revocation of the permit. a 3. Any person who constructs, alters, or installs an individual sewage disposal system in a manner which involves a knowing and material variation from the terms or specifications contained in the application of permit commits a Class I, Petty Offense ($500.00 fine — 6 i f m in jail or both). 1 Applicant: Green Copy Department: Pink Copy JNDIVIDT TAT, SEWAGE DISPOSAT. SYSTEM APPLICATION OWNER t r o y l_ , C / /106..k ADDRESS on 77 PTA RM/5an DR. G. La C. ('n. PHONE Qt - a las 4 CONTRACTOR - S',3,... < ADDRESS PHONE PERMIT REQUEST FOR (4NEW 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). J.00ATION OF PROPOSED FACH,ITY: COUNTY 6) ,Q v.Ci ex. /5 Near what City or Town r., Jav vice A Cs Lot /7 Legal Description WASTES TYPE.: (Dwelling ( ) Transient Use ( ) Commercial or Industrial ( ) Non - domestic Wastes ( ) Other - Describe BUILDING OR SERVICE TYPE: C3 c:-iv r Number of bedrooms: 4 Number of persons Garbage Grinder ( 9 Automatic Washer ( Tbishwasher SOT MCP. AND TYPE OF WATER ST JPPT.Y. () WELL () SPRING () STREAM OR CREEK Give depth of all wells within 180 feet of system: If supplied by communtiy water, give name of supplier: .3 n r.. '-s Id-AA .. C .. L C,ROIJND CONDITIONS: S ` 1 C." Depth to bedrock: Depth to first Ground Water Table: - Percent Ground Slope: DISTANCE TO NEAREST COMMUNITY SEWER SYSTEM: Was an effort made to connect to community system? TYPE OF INDIVIDUAL SEWAGE DISPOSAL SYSTEM PROPOSED: (-') Septic Tank ( ) Aeration Plant ( ) Vault ( ) Vault Privy ( ) Composting Toilet ( ) Recycling, potable use ( ) Pit Privy ( ) Incineration Toilet ( ) Recycling, other use ( ) Chemical Toilet ( ) Other - Describe: FINAL DISPOSAL BY: ( ) Absorption Trench, Bed or Pit ( ) Evapotranspiration (4 Underground Dispersal ( ) Sand Filter ( ) Above Ground Dispersal ( ) Wastewater Pond ( ) Other - Describe: WILL EFFLUENT BE DISCHARGED DIRECTLY INTO WATERS OF THE STATE? ,r/® • PERCO!.ATION TEST REST JI.TS: (To be completed by Registered Professional Engineer) Minutes per inch in hole No. 1 Minutes per inch in Hole No. 3 Minutes per inch in hole No. 2 Minutes per inch in Hole No. Name, address and � telephone of RPE who made soil absorption tests: -At- way Y� - (91.1 A- /r✓. ..a-n J Jrj $ q /q ( - 7756 Name, address : nd telephone of RPE responsible for design of the system: _ r _ ¢ 7 Applicant acknowledges that the completeness of the appliction 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 purposes of the evaluation of the application; and the issuance of the permit is subject to such terms and conditions as deemed necessary to inusre compliance with , rules and regulations adopted under Article 10, Title 25, C.R.S. 1973, as amended. The undersigned hereby certifies that all statements make, 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 bre relied on by the local department of health in evluating the same fro purposes of issuing the permit applied for herein. I further understand that any falsification 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 'ey (C L Date a/ i y 7s pi (EASE DRAW AN ACCURATE. MAP TO YOIJR PROPERTY • A , • IIEPWORTH -PAWL, AK GEOTECIINICAI, INC, 5020 Road 154 Glenwood Springs, CO 81 601 February 16, 1995 Pax 303 945-8454 Phone 303 945 -7988 Troy Clark 0077 Ptarmigan Drive Glenwood Springs, Colorado 81601 Job No. 195 118 Subject: Subsoil Study for Foundation Design, Proposed Residence, Lot 17, Springridge Subdivision, Garfield County, Colorado. Dear Mr. Clark: As requested, Hepworth - Pawlak Geotechnical, Inc. performed a subsoil study for design of foundations at the subject site. The study was conducted in accordance with our agreement for geotechnical engineering services to you dated January 30, 1995. The data obtained and our recommendations based on the proposed construction and subsurface conditions encountered are presented in this report. Proposed Construction: The proposed residence will be a one story wood frame structure with a heated slab -on -grade floor located on the site as shown on Fig. 1. Cut depths for footings are expected to range between about 3 to 4 feet. Foundation loadings for this type of construction are assumed to be relatively light. If building conditions or foundation loadings are significantly different from those described above, we should be notified to reevaluate the recommendations presented in this report. Site Conditions: The site was vacant and covered with about 6 inches of snow at the time of our field work on February 2, 1995. Vegetation at the site consisted of grass and weeds: The lot is located in a broad drainage that slopes moderately to gently down to the northwest. The slope in the proposed building area is about 5% with 1 to 2 feet of elevation difference across the building footprint. Rock outcrops of the Maroon Formation were observed on the ridge above and about 400 yards northwest of the site. Subsurface Conditions: The subsurface conditions at the site were evaluated by excavating three exploratory pits at the approximate locations shown on Fig. 1. The logs of the pits are presented on Fig. 2. The subsoils encountered, below about 1/2 foot of topsoil, consist of reddish brown, stiff, sandy silt and clay. About 2 1/2 feet of Troy Clark February 16, 1995 Page 2 slightly silty sand was encountered in Pit 1 overlying the silt and clay. Results of swell - consolidation testing performed on relatively undisturbed samples of the sandy silt and clay, presented on Fig. 3, indicate low compressibility under existing moisture conditions and light loading and a minor collapse potential (settlement under constant load) when wetted. The silt and clay exhibited moderate compressibility under increased loading after wetting. No free water was observed in the pits at the time of excavation and the soils were slightly moist to moist. Foundation Recommendations: Considering the subsoil conditions encountered in the exploratory pits and the nature of the proposed construction, we recommend spread footings placed on the undisturbed natural soil designed for an allowable soil bearing pressure of 1200 psf for support of the proposed residence. There could be some post construction settlement if the bearing soils become wet. Footings should be a minimum width of 16 inches for continuous walls and 2 feet for columns. Loose and disturbed soils encountered at the foundation bearing level within the excavation should be removed and the footing bearing level extended down to the undisturbed natural soils. Exterior footings should be provided with adequate cover above their bearing elevations for frost protection. Placement of footings at least 36 inches below the exterior grade is typically used in this area. Continuous foundation walls should be reinforced top and bottom to span local anomalies such as by assuming an unsupported length of at least 10 feet. Foundation walls acting as retaining structures should be designed to resist a lateral earth pressure based on an equivalent fluid unit weight of at least 50 pcf for the on -site soil as backfill. Floor Slabs: The natural on -site soils, exclusive of topsoil, are suitable to support lightly loaded slab -on -grade construction. There could be differential settlement if the subgrade soils were to become wet. To reduce the effects of some differential movement, floor slabs should be separated from all bearing walls and columns with expansion joints which allow unrestrained vertical movement. Floor slab control joints should be used to reduce damage due to shrinkage cracking. The requirements for joint spacing and slab reinforcement should be established by the designer based on H -P GEOTECH Troy Clark February 16, 1995 Page 3 experience and the intended slab use. A minimum 4 -inch layer of free- draining gravel could be placed beneath slabs to act as a leveling course and provide a break for capillary moisture rise. This material should consist of minus 2 -inch aggregate with less than 50% passing the No. 4 sieve and less than 2% passing the No. 200 sieve. All fill materials for support of floor slabs should be compacted to at least 95 % of maximum standard Proctor density at a moisture content near optimum. Required fill can consist of the on -site soils devoid of vegetation, topsoil and oversized rock. Surface Drainage: The following drainage precautions should be observed during construction and maintained at all times after the residence has been completed: 1) Inundation of the foundation excavations and underslab areas should be avoided during construction. 2) Exterior backfill should be adjusted to near optimum moisture and compacted to at least 95 % of the maximum standard Proctor density in pavement and slab areas and to at least 90% of the maximum standard Proctor density in landscape areas. 3) The ground surface surrounding the exterior of the building should be sloped to drain away from the foundation in all directions. We recommend a minimum slope of 12 inches in the first 10 feet in unpaved areas and a minimum slope of 3 inches in the first 10 feet in pavement and walkway areas. 4) Roof downspouts and drains should discharge well beyond the limits of all backfill. Percolation Testing: Percolation tests were performed on February 2, 1995 in 3 locations as shown on Fig. 1. The tests were run in small holes (12 inch diameter by 12 inch deep) hand dug at the bottom of shallow backhoe pits. The test holes were soaked H -P GEOTECH • Troy Clark February 16, 1995 Page 4 with water on the day prior to the test. The soils exposed in the percolation holes were similar to those encountered in the Profile Pit shown on Fig. 2 and consisted of stiff sandy silt and clay. The percolation test rates varied from 60 to 120 minutes per inch with an average rate of 80 minutes per inch. A conventional infiltration septic system is probably possible at the site but may need to be oversized due to the relatively slow percolation rate. A civil engineer should design the infiltration septic disposal system. Limitations: This report has been prepared in accordance with generally accepted geotechnical engineering principles and practices in this area at this time. We make no other warranty either expressed or implied. The conclusions and recommendations submitted in this report are based upon the data obtained from the exploratory pits excavated at the locations indicated on Fig. I, the proposed type of construction and our experience in the area. Our findings include interpolation and extrapolation of the subsurface conditions identified at the exploratory pits and variations in the subsurface conditions may not become evident until excavation is performed. If conditions encountered during construction appear different from those described in this report, we should be notified at once so re- evaluation of the recommendations may be made. This report has been prepared for the exclusive use by our client for design purposes. We are not responsible for technical interpretations by others of our information. As the project evolves, we should provide continued consultation and field services during construction to review and monitor the implementation of our recommendations, and to verify that the recommendations have been appropriately interpreted. Significant design changes may require additional analysis or modifications to the recommendations presented herein. We recommend on -site observation of excavations and foundation bearing strata and testing of structural fill by a representative of the soil engineer. H -P GEOTECH • • Troy Clark February 16, 1995 Page 5 If you have any questions or if we may be of further assistance, please call our office. Sincerely, HEPWORTH - PAWLAK GEOTECINICAL, INC. p1 W11 ! 1( Eii4 j REr1 g �'//i � .<.. r �J ( a :Z Daniel E. Hardin, P.E. 2 24443 f � e •• °c; . ,9• v ti t ....... Reviewed Reviewed By: 'O / / / /�SN / ON 1 AL ts'm Steven L. Pawlak, P.E. DEH /rr Attachments cc: Enartech - Attn: Chuck Peterson H - GEOTECH Lot 15 Lot 16 SPringridge Drive \ \ \ Drainage \ \Easement 7 ``G\ \ o \ \ Lot 17 o , C ---- Boundary \ ° n CO I \ �\ / o Pit 2 Proposed House / p -1 is 0 . Profile 1 • Pit 1 � l P -2 0 1 - - - - - - • P-3 Pit 1 mis es sm. 0 35 70 140 Approximate Scale in Feet 195 118 HEPWORTH PAWLAK I GEOTECHNICAL, Inc. Location of Exploratory Pits Fig. 1 • ♦ Pit 1 Pit 2 Profile Pit 0 0 . - tI WC =1.6 y �� j L – 200 =10 /� L,iC =8.5 — a) 2 a a. , 200 _, o o ' � .10.9 -200 =83 i - - '; � t ----5 DD =102 WC =5.7 5 — �DD =106 7 _ A 7/ // _ & 10 10 LEGEND: ti TOPSOIL; sandy silt, organic, frozen, dark brown. ty SAND (SM); slightly silty, slightly gravelly, medium dense, slightly moist, reddish brown. F SILT AND CLAY (ML -CL); sandy, stiff, moist, reddish brown, slightly , calcareous. I S] 2 -inch Diameter Hand Driven Sample. - i Small Disturbed sample. NOTES: 1. Exploratory pits were excavated on February 2, 1995 with a rubber -tired backhoe. 2. Locations of exploratory pits were measured approximately by pacing from features shown on the site plan provided. 3. Elevations of exploratory pits were not measured and logs of exploratory pits are drawn to depth. 4. The exploratory pit locations should be considered accurate only to the degree implied by the method used. 5. The lines between materials shown on the exploratory pit logs represent the approximate boundaries between material types and transitions may be gradual. 6. No free water was encountered in the pits at the time of excavating. Fluctuations in water level may occur with time. 7. Laboratory Testing Results: WC = Water Content ( %) DD = Dry Density (pcf) -200 = Percent passing No. 200 sieve 195 118 I HEPWORTH PAWLAK I GEOTECHNICAL, Inc. Logs of Exploratory Pits I Fig. 2 . Moisture Content = 10,9 percent Dry Unit Weight = 102 pcf Sample of: Sandy Silty Clay o I • From: Pit 1 at 4 feet • .N 1 , N G1 tr a e 2 o Compression Upon Wetting 3 4 • 5 6 8, I1� 0.1 100 APPLIED PRESSURE - ksf Moisture Content = 8.6 percent ■ Dry Unit Weight = 99 pcf i I I i 1 1 I Sample of: Sandy Clayey Silt 1 I ' From: pit 2 at 3 feet o o. I S 2 • i 3 /I No Movement 4 Upon Wettinc 5 0.1 1.0 10 100 APPLIED PRESSURE - ksf 195 118 HEPWORTH- PAWLAK SWELL - CONSOLIDATION TEST RESULTS I Fig. 3 I GEOTECHNICAL, Inc. 1 . . CO 6 >- co gE ) & § » � / 0 } / J \ 0 > / 3 CO 03 CO 1 |i \ / |||| § §- / § 0 = 0 1 2 � ; � o .. / \ | E — § � z - 0 u <� e q o \ _1 2 % G = § 0 < \ | = . � + (E|! / @ ) §§ o! r co { = e 1! ' \.- r m .- N • . • • HEPWORTH - PAWLAK GEOTECHNICAL, INC. TABLE II PERCOLATION TEST RESULTS JOB NO. 195 118 HOLE NO. HOLE DEPTH LENGTH OF WATER DEPTH WATER DEPTH DROP IN AVERAGE (INCHES)' INTERVAL AT START OF AT END OF WATER PERCOLATION (MIN) INTERVAL INTERVAL LEVEL RATE (INCHES) (INCHES) (INCHES) (MIN /INCH) P-1 50 15 10 9 1/2 1/2 9 1/2 9 3/8 1/8 Water Added 11 10 3/4 114 10 3/4 10 5/8 1/8 10 5/8 10 1/2 1/8 120 P -2 48 15 10 9 3/4 1/4 9 3/4 9 1/2 1/4 9 1/2 9 1/4 1/4 9 1/4 9 1/4 9 8 3/4 1/4 60 P3 52 15 10 91/2 1/2 9 1/2 9 1/4 1/4 Water Added 10 1/4 10 1/4 10 9 3/4 1/4 9 3/4 9 1/2 1/4 60 Note: Percolation test holes were dug and soaked on February 2, 1995. Percolation tests were performed on February 3, 1995. The soils in the percolation test holes consisted of reddish brown, stiff sandy silt and clay.