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HomeMy WebLinkAbout115 Fox Run - 239128107013 - OWTS-6-11-6249Work Classification: NewPermit PO Box 1067 Aspen CO 81612-1067 Address Owner Information Permit Status: Active Project Address 239128107013 Permit Type: OWTS Permit Permit NO. OWTS-6-11-6249 Expires: 10/17/2012 Issue Date: 6/19/2012 Parcel No. 000115 FOX RUN DR EL JEBEL AREA, CO Private Wastewater System Environmental Health Department P.O. Box 179 500 Broadway Eagle, CO 81631-0179 Phone: (970)328-8755 Fax: (970)328-8788 Phone: (970)948-8047 Cell: Inspection For Inspections call: (970) 328-8755 Inspections: IVR PhoneEngineer(s) (970)618-5033ALL SERVICE SEPTIC Contractor(s)Phone Primary ContractorLicense Number EL JEBEL CONCRETE (970)928-8287 Yes John McCormick McCormick Properties Permitted Construction / Details: This system is designed to accommodate a four bedroom residence. Installation of a 2000-gallon, two-compartment, precast concrete septic tank, with the addition of a pump and filter in the second compartment and 1,500 square feet of absorption area credit via four rows of 19 ‘Quick 4’ Infiltrator chambers in a shallow trench configuration with the trenches connected serially as indicated on the engineer design dated 6-14-11. If basalt boulders are encountered during excavation and construction of OWTS chamber trenches, a minimum 8 inches of imported sand compacted to the engineer’s specification must be placed on the bottom of trench to separate the rocks from the infiltrative surface. Contact the design engineer if or when these or more serious circumstances are encountered and for final certification of the system. Do not cover any portion of the system before inspection by the engineer. Occupancy will not be allowed without engineer certification. Issued by: Environmental Health Department, Eagle County, CO June 19, 2012 Date Customer Copy Terri Vroman CONDITIONS: 1. THIS PERMIT EXPIRES BY TIME LIMITATION AND BECOMES NULL AND VOID IF THE WORK AUTHORIZED BY THE PERMIT IS NOT COMMENCED WITHIN 120 DAYS OF ISSUANCE, OR BEFORE THE EXPIRATION OF AN ASSOCIATED BUILDING PERMIT 2. ALL INSTALLATIONS MUST COMPLY WITH ALL REQUIREMENTS OF THE EAGLE COUNTY INDIVIDUAL SEWAGE DISPOSAL SYSTEM REGULATIONS ADOPTED PURSUANT TO AUTHORITY GRANTED IN C.R.S. 25-10-101, et seq., AS AMENDED 3. THIS PERMIT IS VALID ONLY FOR CONNECTION TO STRUCTURES WHICH HAVE FULLY COMPLIED WITH COUNTY ZONING AND BUILDING REQUIREMENTS. CONNECTION TO, OR USE WITH ANY DWELLING OR STRUCTURE NOT APPROVED BY THE ZONING AND BUILDING DEPARTMENTS SHALL AUTOMATICALLY BE A VIOLATION OF A REQUIREMENT OF THE PERMIT, AND WILL RESULT IN BOTH LEGAL ACTION AND REVOCATION OF THE PERMIT 4. CHAPTER IV, SECTION 4.03.29 REQUIRES ANY PERSON WHO CONSTRUCTS, ALTERS OR INSTALLS AN INDIVIDUAL SEWAGE DISPOSAL SYSTEM TO BE LICENSED Work Classification: NewPermit PO Box 1067 Aspen CO 81612-1067 Address Owner Information Permit Status: Active Project Address 239128107013 Permit Type: OWTS Permit Permit NO. OWTS-6-11-6249 Expires: 10/17/2012 Issue Date: 6/19/2012 Parcel No. 000115 FOX RUN DR EL JEBEL AREA, CO Private Wastewater System Environmental Health Department P.O. Box 179 500 Broadway Eagle, CO 81631-0179 Phone: (970)328-8755 Fax: (970)328-8788 Phone: (970)948-8047 Cell: Inspection For Inspections call: (970) 328-8755 Inspections: IVR PhoneEngineer(s) (970)618-5033ALL SERVICE SEPTIC Contractor(s)Phone Primary ContractorLicense Number EL JEBEL CONCRETE (970)928-8287 Yes John McCormick McCormick Properties Permitted Construction / Details: This system is designed to accommodate a four bedroom residence. Installation of a 2000-gallon, two-compartment, precast concrete septic tank, with the addition of a pump and filter in the second compartment and 1,500 square feet of absorption area credit via four rows of 19 ‘Quick 4’ Infiltrator chambers in a shallow trench configuration with the trenches connected serially as indicated on the engineer design dated 6-14-11. If basalt boulders are encountered during excavation and construction of OWTS chamber trenches, a minimum 8 inches of imported sand compacted to the engineer’s specification must be placed on the bottom of trench to separate the rocks from the infiltrative surface. Contact the design engineer if or when these or more serious circumstances are encountered and for final certification of the system. Do not cover any portion of the system before inspection by the engineer. Occupancy will not be allowed without engineer certification. Office Copy June 19, 2012 Issued by: Environmental Health Department, Eagle County, CO Date Terri Vroman CONDITIONS: 1. THIS PERMIT EXPIRES BY TIME LIMITATION AND BECOMES NULL AND VOID IF THE WORK AUTHORIZED BY THE PERMIT IS NOT COMMENCED WITHIN 120 DAYS OF ISSUANCE, OR BEFORE THE EXPIRATION OF AN ASSOCIATED BUILDING PERMIT 2. ALL INSTALLATIONS MUST COMPLY WITH ALL REQUIREMENTS OF THE EAGLE COUNTY INDIVIDUAL SEWAGE DISPOSAL SYSTEM REGULATIONS ADOPTED PURSUANT TO AUTHORITY GRANTED IN C.R.S. 25-10-101, et seq., AS AMENDED 3. THIS PERMIT IS VALID ONLY FOR CONNECTION TO STRUCTURES WHICH HAVE FULLY COMPLIED WITH COUNTY ZONING AND BUILDING REQUIREMENTS. CONNECTION TO, OR USE WITH ANY DWELLING OR STRUCTURE NOT APPROVED BY THE ZONING AND BUILDING DEPARTMENTS SHALL AUTOMATICALLY BE A VIOLATION OF A REQUIREMENT OF THE PERMIT, AND WILL RESULT IN BOTH LEGAL ACTION AND REVOCATION OF THE PERMIT 4. CHAPTER IV, SECTION 4.03.29 REQUIRES ANY PERSON WHO CONSTRUCTS, ALTERS OR INSTALLS AN INDIVIDUAL SEWAGE DISPOSAL SYSTEM TO BE LICENSED Mr. McCormick sold this property before final. New Owner" : Lorraine Ferroemail: lbferro3200@gmail.com November 21st, 2018 Mr. John Cormick Po Box 1067 Aspen, CO. 81612-1067 RE: Final approval of the: Septic System Installation, OWTS-6-11-6249 Property location: 000115 Fox Run Drive, El Jebel. Eagle County area. Mr. Cormick: This letter is to inform you that the above-referenced, OWTS-6-11-6249 permit, has been inspected and finalized. This OWTS permit was approved and sized to serve a 4 bedrooms, home. Additional information about the maintenance your septic system needs can be accessed through our website links, provided on the Environmental Health Department’s septic system resource page. Be aware that changes in the use of your property or alterations of your building may require commensurate changes to, or relocation of, your septic system. Landscape features, trees with tap roots, irrigation systems and parking areas above the soil treatment area can cause premature system failure. It is equally important that you notice and immediately repair dripping faucets and hissing toilets as this will certainly cause the system to fail. If you have any questions regarding this information, please contact us at (970) 328-8755 and reference the OWTS septic permit number. Best Regards, Giovanna Harkay. Administrative Fiscal Tech IV Attachments: Certification Letter and Design – Septic System Flyer – Final Letter PUBLIC HEALTH & ENVIRONMENT (970) 328-8755 FAX: (970) 328-8788 Environment@eaglecounty.us RAYMOND P. MERRY, REHS Manager 11/14/2018 Eagle County Government Mail - Septic Inspection report https://mail.google.com/mail/u/0?ik=928161f115&view=pt&search=all&permmsgid=msg-f%3A1617141865586524739&simpl=msg-f%3A1617141865586524739 1/1 Giovanna Harkay <giovanna.harkay@eaglecounty.us> Septic Inspection report Ray Merry <ray.merry@eaglecounty.us>Wed, Nov 14, 2018 at 1:17 PM To: Giovanna Harkay <giovanna.harkay@eaglecounty.us> Cc: Lorraine Ferro <lbferro3200@gmail.com>, environment@eaglecounty.us, Carla Ostberg <carla.ostberg@gmail.com> Lorraine, We've reviewed the CBO, Inc. November 10, 2018 inspection report from Carla Ostberg and appreciate the steps that you've taken to get the on-site wastewater treatment system permit (OWTS-6-11-6249) completed in order to allow occupancy. Carla, There are a couple of questions that we'd like to have answered to the best of your ability. OWTS Permit 6-11-6249 issued along with the June 14, 2011 All Service Septic, LLC design report specify a pump to be placed in the second compartment of the septic tank. Since the distribution network is serial, it seems odd that the intent was to pressurize the soil treatment area, unless shallow bedrock was encountered necessitating the placement of sand under the chambers. Based on your inspection, a pump is not present. Do have any additional records or documentation that can clear this up for us? Do you happen to have record of the installer? The permit was issued to El Jebel Concrete, phone number (970) 928-8287. Lastly, would you please have Richard send us a stamped certification letter? Thanks. PS - this parcel also shows that another septic system was designed by All Service Septic (project number 1477) and permitted to serve a two bedroom dwelling back in 2008 (OWTS 7-08-1836) located further south on the property but never moved forward. We've voided this permit record in our database and included notes to avoid any confusion. [Quoted text hidden] -- Raymond P. Merry, REHS Director of Environmental Health PO Box 179 Eagle, CO 81631 970.328.8757 ray.merry@eaglecounty.us P Thanks for not printing electronic media CBO Inc. 33 Four Wheel Drive Road Carbondale, CO 81623 cell) 970-309-5259 carla.ostberg@gmail.com November 10, 2018 Lorraine Ferro lbferro3200@gmail.com Onsite Wastewater Treatment System (OWTS) Inspection 115 Fox Run Drive Eagle County, Colorado Lorraine, As requested, CBO Inc. performed an Onsite Wastewater Treatment System (OWTS) inspection at 115 Fox Run Drive, Carbondale, Colorado on November 9, 2018. The legal description of the 9.474-acre property is as follows: Subdivision: FOX RUN MEADOWS PUD Lot: 22 Parcel ID: 2391-281-07-013 The system was not properly finalized after installation; however, ALL SERVICE septic, LLC performed an inspection of the installation on June 28, 2012. Photographs and a record drawing from that inspection are enclosed. We believe the final documents were not completed due to a communication gap between ALL SERVICE septic, LLC and the then-current owner. Ownership changed and we preformed this inspection for Thomas Ferro, the current owner. The subject OWTS consists of one 2000-gallon, two-compartment concrete septic tank with an effluent filter on the outlet tee of the filter. Effluent gravity flows to four gravelless chamber trenches, each with 19 ‘Quick 4’ Infiltrator® chambers in each trench. The trenches are connected serially. Eagle County Permit OWTS-6-11-6249 documents the system, but was it was not finalized prior to expiring. The septic tank is located west of the residence. We observed a clean out near the foundation, but no additional clean outs before the septic tank. Given the length of the sewer line from between the residence and the septic tank, we recommend installing an additional clean out. There should be a clean out at least every 100-feet. We do not believe the residence had been constructed at the time of the installation observations by ALL SERVICE septic, LLC in 2012. Both septic tank lids were accessible from grade. Liquid levels in the septic tank appeared normal at the time of our inspection. The effluent filter should be cleaned annually, or as needed. W e walked the approximate soil treatment area (STA) and found no surface saturation or evidence of failure at the time of our inspection. Inspection ports were present and all were dry. Installation of the chambers appeared to be very shallow, with some settling of the soils over the chambers. We recommend considering regrading over the field, with the addition of fill material to eliminate the settling issues and assuring the minimum 1-foot of cover over chambers. Once the area has been re-graded (with a track machine – no wheeled vehicles), the area should be properly revegetated. This evaluation is not a guarantee of future system performance. Recommendations: • Install an additional clean out on sewer line between residence and septic tank. There should be a clean out at least every 100-feet. • Clean effluent filter annually, or as needed. • Regrade over chamber trenches to eliminate settling and assure there is a minimum 1-foot of cover over chambers. Revegetate as needed. Disclaimer: This inspection is intended only as an evaluation of the present condition of the OWTS based upon what was observed and the Licensed Inspector’s expertise in onsite wastewater technology. The Inspector has not been retained to warrant or guarantee the proper functioning of the system for any period of time in the future. Because of numerous factors which may affect the operation of an OWTS, as well as the inability of the Inspector to supervise or monitor the use or maintenance of this OWTS, this report shall not be construed as a warranty by the Inspector that the system will function properly for any particular prospective buyer, and the Inspector disclaims any warranty, either expressed or implied, arising from the inspection of the OWTS or this report. The evaluation does not ascertain the impact the system is having on groundwater. Please call with questions. Sincerely, Carla Ostberg, MPH, REHS NAWT Certified Inspector Certification # 11044ITC Exp. April 2020 June 28, 2012 Installation Observations Inlet tee outlet tee with filter Chamber trenches, connected serially Sewer line from tank to STA copy of permit available on site during installation observations November 9, 2018 Inspection View of septic tank lids Effluent filter in outlet side of septic tank inspection ports, view of STA View of STA, note settling over chamber trenches clean out near residence 115 Fox Ru n Drive Legend 100 ft N➤➤N 832‐R‐13‐002 aft C4 ry 77 r RL CD 0 O 1 ' S..nr-/� _ _m �41 cry o G DTI I J � till � r kb F Lo m O tin O � � 3 O W F C � � 1 fJ GE�tech HEPWORTH- PAWLAK GEOTECHNICAL March 28, 2011 John McCormick P.O. Box 1067 Hepworth-Pawlak Geotechnical, Inc. 5020 County Road 154 Glenwood Springs, Colorado 81601 Phone:970-945-7988 Fax:970.945.8454 email: hpgeoGOhpgeotcch.com Aspen, Colorado 81612 <Ecotech47@Rmai1. com> Job No. III 037A Subject: Subsoil Study for Foundation Design and Percolation Test, Proposed Residence, Lot 22, Fox Run Meadows, Eagle County, Colorado Dear Mr. McCormick: As requested, Hepworth-Pawlak Geotechnical, Inc. performed a subsoil study and percolation test for foundation and septic disposal designs at the subject site. The study was conducted in accordance with our agreement for geotechnical engineering services to you dated March 8, 2011. The data obtained and our recommendations based on the proposed construction and subsurface conditions encountered are presented in this report. Evaluation of potential geologic hazard impacts on the site is beyond the scope of this study. Proposed Construction: The proposed residence will be one story wood frame construction above a crawlspace with an attached garage. A future barn and greenhouse will be constructed downhill and west of the residence. The building locations are shown on Figure 1. Garage floor is proposed to be slab -on -grade. Cut depths are expected to range between about 3 to 6 feet. Foundation loadings for this type of construction are assumed to be relatively light and typical of the proposed type of construction. The septic disposal system is proposed to be located southwest and downhill of the residence. If building conditions or foundation loadings are significantly different from those described above, we should be notified to re-evaluate the recommendations presented in this report. Site Conditions: The property was occupied with a dilapidated barn and free of snow cover at the time of our field exploration. Vegetation consists of grass and weeds. The ground surface is relatively flat with a slight slope down to the west in the residence area. The ground surface slope steepens somewhat in the proposed barn area. An abandoned irrigation ditch crosses near the building area. Parker 303-841-7119 • Colorado Springs 719-633-5562 0 Silverthorne 970-468-1989 -3- slab use. A minimum 4 inch layer of free -draining gravel should be placed beneath basement level slabs to facilitate drainage. 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 calcareous and rocky soils devoid of vegetation, topsoil, sandy clay and oversized rock. Underdrain System: Although free water was not encountered during our exploration, it has been our experience in the area that local perched groundwater can develop during times of heavy precipitation or seasonal runoff. Frozen ground during spring runoff can create a perched condition. We recommend below -grade construction, such as retaining walls and crawlspace areas, be protected from wetting and hydrostatic pressure buildup by an underdrain system. The drains should consist of drainpipe placed in the bottom of the wall backfill surrounded above the invert level with free -draining granular material. The drain should be placed at each level of excavation and at least 1 foot below lowest adjacent finish grade and sloped at a minimum 1 % to a suitable gravity outlet. Free -draining granular material used in the underdrain system should contain less than 2% passing the No. 200 sieve, less than 50% passing the No. 4 sieve and have a maximum size of 2 inches. The drain gravel backfill should be at least 1 %z feet deep. 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. Free -draining wall backfill should be capped with about 2 feet of the on -site, finer graded soils to reduce surface water infiltration. 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. A Swale may be needed uphill to direct surface runoff around the residence. Job No.I 11037A GgPtECh 4) Roof downspouts and drains should discharge well beyond the limits of all backfill. 5) Landscaping which requires regular heavy irrigation should be located at least 10 feet from the building. Consideration should be given to the use of xeriscape to limit potential wetting of soils below the building caused by irrigation. Percolation Testing: A profile pit and three percolation test holes were excavated on March 15, 2011 at the locations shown on Figure 1. The subsoils exposed in the Profile Pit below about one foot of topsoil consist of sandy clay overlying calcareous gravelly sand, silt and clay. Digging refusal was encountered at 4%2 feet in basalt cobbles and boulders. The results of a gradation analysis performed on a sample of very gravelly sandy loam (minus 1'/2 inch fraction) obtained from the site are presented on Figure 4. No free water or evidence of a seasonal perched water table was observed in the pit and the soils were slightly moist to moist. Percolation test holes were hand dug in the gravelly sand, silt and clay soils (below the clay) and soaked with water on March 15, 2011. Percolation testing was conducted on March 16, 2011 by a representative of Hepworth - Pawlak Geotechnical, Inc. The percolation rates varied from 17 minutes per inch to 20 minutes per inch with an average of 19 minutes per inch. The percolation test results are summarized on Table 2. Based on the subsurface conditions encountered and the percolation test results, the tested area should be suitable for an on -site waste disposal system. The system should be placed below the upper sandy clay soils. A professional civil engineer or Eagle County Health Specialist should design the septic disposal system. Limitations: This study has been conducted in accordance with generally accepted geotechnical engineering principles and practices in this area at this time. We make no warranty either express 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 Figure 1, the proposed type of construction and our experience in the area. Our services do not include determining the presence, prevention or possibility of mold or other biological contaminants (MOBC) developing in the future. If the client is concerned about MOBC, then a professional in this special field of practice should be consulted. 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 Job No.111 037A ~Ptech -5- 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 geotechnical engineer. If you have any questions or if we may be of further assistance, please let us know. Respectfully Submitted, HEPWORTH - PAWLAK GEOTECHNICAL, INC. ooexl Louis E. Eller Reviewed by: Steven L. Pawla LEE/ksw attachments Figure 1 — Locxploratory Pits and Percolation Test Holes Figure 2 — Logs of Exploratory Pits Figure 3 - Swell -consolidation Test Results Figure 4 — USDA Gradation Test Results Table 1 — Summary of Laboratory Test Results Table 2 — Percolation Test Results cc: Greenline Architects - Steve Novy (snovy&greenlinearchitects com) SK Peightal Engineers - Steve Peightal (skpe@sopris.net) All Service Septic - Tim Petz (tpetzl a comcast.net) Job No. 111 037A FENDER LANE . STONE S89.32'35'E 550.15' wuE • • .eam DR'CNE e ti I y • N • �s�x�" 'a'e anal• • p P T 3 PROPOSED • I RESIDENCE m\ I N J PIT PRO ILL PIT 3 0 0 P to A S IC FIELD P 2 \ _ LO TION DILAPIDATE (APP Yj iI BUILDING FOUNDATION DILAPIDATED WOOD MAN 1 o00L� `�j �•'/// �w DILAPIDATEDI CORRAL cULTUML �b i LOT 22 / APPROXIMATE SCALE 1"=80' 111 037A C�~Ch LOCATION OF EXPLORATORY PITS Figure 1 He worth—Pawlak Geotechniccl AND PERCOLATION TEST HOLES 9 PIT 1 PIT 2 PIT 3 PROFILE PIT ELEV.= 7135' ELEV.= 7136' ELEV.= 7127' ELEV.= 7129' 0 0 WC=11.5 WC=14.2 WC=15.7 _ WC=20.7 - +4=22 DD=106 --200=39 DD=104 -200=33 - LL 5 LL=42 5 r iz _ PI=13 _ _j WC=21.0 _ -200=33 10 10 _ LEGEND: TOPSOIL; organic sandy silt and clay, frozen, dark brown. CLAY (CL); sandy, silty, low to medium plasticity, stiff to very stiff, reddish brown. SAND, SILT AND CLAY (SM-SC); gravelly, low to medium plasticity, occasional cobbles, medium stiff to stiff, slightly moist to moist, light brown, calcareous. BASALT COBBLES AND BOULDERS (GM -GC); in a sandy silt and clay matrix, dense, slightly moist, light a brown, calcareous. 2 Diameter hand driven liner sample. Practical digging refusal with mini -excavator IL in basalt rock. JDisturbed bulk sample. NOTES: 1. Exploratory pits were excavated on March 15, 2011 with a JCB 804 Mini -excavator. 2. Locations of exploratory pits were measured approximately by pacing from features shown on the site plan provided. 3. Elevations of exploratory pits were obtained by interpolation between contours shown on the site plan provided. 4. The exploratory pit locations and elevations 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. Fluctuation in water level may occur with time. 7. Laboratory Testing Results: WC = Water Content (%) DID = Dry Density (pcf) +4 = Percent retained on the No. 4 sieve 111 037A -200 = Percent passing No. 200 sieve LL = Liquid Limit (%) PI = Plasticity Index (%) LOGS OF EXPLORATORY PITS I Figure 2 Moisture Content = 11.5 percent Dry Density = 106 pcf Sample of: Sandy Clay From: Pit 1 at 3 Feet 2 0 0 1 c m a 0 0 .N � 1 E Expansion 0 upon 2 wetting 0.1 1.0 10 100 APPLIED PRESSURE - ksf Moisture Content = 15.7 percent Dry Density = 104 pcf Sample of: Sandy Clay From: Pit 3 at 3 Feet 2 0 c 0 v, 1 c m a L' c 0 0 u, d Q 1 o Expansion 0 upon 2 wetting 0.1 1.0 10 100 APPLIED PRESSURE - ksf I-1 111 037A �y@ h SWELL -CONSOLIDATION TEST RESULTS Figure 3 He worth—Pawlak Geotechniccl \ \ \ - 0® \ # O » 2 O ) k \@ » j \§ Q >j \0 « §§(® J < z §z Vi ON in z< q /z �§ G © R m e t (00cn \ f } � \ N cn\2 a . HEPWORTH-PAWLAK GEOTECHNICAL, INC. TABLE 2 PERCOLATION TEST RESULTS JOB NO. 111037A HOLE NO. HOLE DEPTH (INCHES) LENGTH OF INTERVAL (MIN) WATER DEPTH AT START OF INTERVAL (INCHES) WATER DEPTH AT END OF INTERVAL (INCHES) DROP IN WATER LEVEL (INCHES) AVERAGE PERCOLATION RATE (MIN./INCH) Pi 35 15 refill refill 7 51/2 1 1/2 17 6 3/4 5 3/4 1 5 3/4 51/4 1/2 5 1/4 41/4 1 61/2 5 3/4 3/4 5 3/4 4 3/4 1 P 2 38 15 refill refill 6 5 1 20 6 51/4 3/4 51/4 41/2 3/4 6 51/4 3/4 51/4 41/2 3/4 41/2 3 3/4 3/4 P 3 41 15 refill refill 6 51/4 3/4 20 61/4 51/2 3/4 51/2 4 3/4 3/4 6 51/2 1/2 51/2 41/2 1 41/2 4 1/2 Note: Percolation test holes were hand dug and soaked on March 15, 2011. Percolation tests were conducted on March 16, 2011. The average percolation rates were based on the last two readings of each test. 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