HomeMy WebLinkAbout575 Willowstone - 211106115004Work Classification: NewPermit CO Address Owner Information Permit Status: Final Project Address 211106115004 Permit Type: OWTS Permit Permit NO. OWTS-5-14-10614 Expires: 12/31/2014 Issue Date: 6/2/2014 Parcel No. 575 WILLOWSTONE PL 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)376-8300 Cell: Inspection For Inspections call: (970) 328-8755 Inspections: IVR PhoneEngineer(s) (970)471-2121BROCK CONSULTING, LLC Contractor(s)Phone Primary ContractorLicense Number BROCK CONSULTING LLC (970)328-2123 Yes12-14 JONATHAN LENGEL Permitted Construction / Details: This Brock Consulting, LLC engineer design dated May 30, 2014 is for a 2 bedroom residence. Install per design a 1000 gallon, two compartment concrete septic tank with a clean out between the dwelling and the tank. Use schedule 40 PVC or C900 pipe. The absorption field is to consist of 20 Quick 4 Infiltrator units in one trench to provide 400 sq ft of absorption area credit. Trench should follow the natural surface contours and be level. Rake trench bottom and sidewalls to eliminate smearing. Provide inspection portals at ends of the trench. Maintain all required setbacks. Do not install in wet or frozen soil conditions. Call the design engineer for a final inspection before burying any of the system components. In order to receive final approval, the engineer must provide the final certification letter, photos of the installation, and as-built drawings of the system. Issued by: Environmental Health Department, Eagle County, CO November 05, 2014 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 CO Address Owner Information Permit Status: Final Project Address 211106115004 Permit Type: OWTS Permit Permit NO. OWTS-5-14-10614 Expires: 12/31/2014 Issue Date: 6/2/2014 Parcel No. 575 WILLOWSTONE PL 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)376-8300 Cell: Inspection For Inspections call: (970) 328-8755 Inspections: IVR PhoneEngineer(s) (970)471-2121BROCK CONSULTING, LLC Contractor(s)Phone Primary ContractorLicense Number BROCK CONSULTING LLC (970)328-2123 Yes12-14 JONATHAN LENGEL Permitted Construction / Details: This Brock Consulting, LLC engineer design dated May 30, 2014 is for a 2 bedroom residence. Install per design a 1000 gallon, two compartment concrete septic tank with a clean out between the dwelling and the tank. Use schedule 40 PVC or C900 pipe. The absorption field is to consist of 20 Quick 4 Infiltrator units in one trench to provide 400 sq ft of absorption area credit. Trench should follow the natural surface contours and be level. Rake trench bottom and sidewalls to eliminate smearing. Provide inspection portals at ends of the trench. Maintain all required setbacks. Do not install in wet or frozen soil conditions. Call the design engineer for a final inspection before burying any of the system components. In order to receive final approval, the engineer must provide the final certification letter, photos of the installation, and as-built drawings of the system. Office Copy November 05, 2014 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 BROCK CONSULTING, LLC Professional Services September 25, 2014 VIA Email: <environment@eaglecounty.us> Eagle County Environmental Health Department P.O. Box 179 500 Broadway Eagle, CO 61631 BCLLC P.O. BOX 3644 Eagle, CO 81631 Cell 970-471-2121 Fax 970-328-0875 Reference: OWTS 5-14-10614 575 Willowstone Place, Lot 4, Eagle River Preserve, Gypsum, CO 81637 REQUEST TO EXTEND PERMIT Dear Environmental Health: The purpose of this letter is to request an extension of the OWTS (private residential wastewater system) permit to November 15, 2014. Being well aware that colder temperatures are forthcoming and thus the potential for frost, additional time is needed to complete other utilities that are being held back by others. Regardless, no frost or other inferior soils will be used in the backfill. Thanks for your understanding. egards, ), i ( � Vern L. Brock, P.E. Brock Consulting, LI_C Lic # 12-14 Cc: Jon Lengel BROCK CONSULTING, LLC cc,cc Professional Services 1 P.O. BOX 3644 Eagle, CO 81631 Cell 970-471-2121 Fax 970-32$-0$75 April 26, 20'14 � i LENGEL RESIDENCE 575 Willowstone Place, Lot 4, Eagle River Preserve, Gypsum, CO 81637 PN 2111-061-15-004 1 TRENCH SYSTEM i ■ REFERENCES ■ 1 Individual Sewage Disposal Systems, Colo. Dept. of Health, Amended 9/15/2004 Eagle County Regulations for Individual Sewage Disposal Systems (ISDS) Infiltrator Chamber Systems Septic Design and Installation, Current Edition Because of the site conditions and gentle slope, a Chamber Trench System is recommended for this site. Please note that the proposed building plans are for a 2 bedroom ADU residence. DESIGN FLOWS Number of bedrooms = 2, Maximum daily Flow (Qmax) = 1.5 X Ave. daily flow Qave = 2 bdrrns x 2 persons/bdrm x 75 gallons/person/day — 300 gpd Qmax = 300 X 150% = 450 gpd SEPTIC TANK Volume = Qmax/24hrs x 30lu•s Detention V = 563 gallons Use 1,000 Gallon (2 compartment) Valley Precast/Copeland Concrete, Inc. or equivalent. First compartment 500 gal. second compartment 500 gallons. ABSORPTION AREA Per H-P Geotech soils report Job. No 104 2370, soil conditions were found to be consistent with the original soils report for the house and the house septic system ISDS Permit # 2338-04 in 2004. With that, field observation of the test holes for the current structure by H-P Geotech and Course to Fine VERY SANDY loarn., a Long Term Acceptance Rate (LTAR) of 1. GAL/Dav/sf shall be used. This is the same LTAR as the house septic system and tbxW.90. conditions are deemed acceptable. A = Qmax/1.2gpd/sf A = 450/1.2 = 375 sf Page 1 of 3 As a double check. Using Eagle County Table 5: Absorption Area = 165 SF/bedroom or 330 SF. For conservancy, this design to use 375 SF. INFILTRATOR CHAMBER SYSTEM IN SERIAL TRENCH DISTRIBUTION State Reduction for Trenches in Chamber System is 50% Square Feet per chamber is 10.0 (Quick 4) 30"x48" Final Absorption Area Required = 375 (0.50) = 188 sf Number of Chambers = Req'd Area/10.0 sf/chamber=188/10 =19 Chambers x USE 20 CHAMBERS FOR CONSERVANCY IN PERCOLATION AND OTHER CONDITIONS! * Meets Manufacturer Minimum Recommendations Given site conditions, Use 2 Rows of 10 Chambers. Product to be Infiltrator Systems, Inc. "Quick 4" Chambers INSTALLATION Install all components to the required setbacks required by regulations. No over excavation allowed for septic tank. Install septic tank level. Install the delivery pipe from the residence to the septic tank and septic tank to absorption trench. All pipe to be minimum 2% slope. Schedule 40 PVC (ASTM D 2665) or C 900. Insulate under driveway or any parking area with 2" rigid insulation. Install chambers level. Connect relief pipe from trench to trench per plans. Backfill and compact the pipe trench, septic tank. and chambers to manufacturer specifications. Cover inspection lids with maximum 8-inches of soil. All covers shall be child proof (100 lb. Min.). NOTES: I . All installations shall meet the rules and regulations of the Eagle County Environmental Health Division, Chapter 4. hidividual Sewage Disposal Systems. 2. The building sewer line from the house to the septic tank shall have a slope of %4 inch per foot (2%). Bends in the building sewer shall be limited to 45 degrees. 3. The septic tank shall be installed level. The tank shall have removable covers or manholes to within 8 inches of the finished grade. for inspection and cleaning. 4. Strip all topsoil in absorption bed area. Reuse for vegetative cover. 5. Excavate three (3) feet wide trenches where possible. The horizontal distance from sidewall to sidewall between the trenches shall be a minimum of six (6) feet. NA. 6. The bottom and the sidewalls of the trenches shall be raked to eliminate smearing. 7. Assemble and install the Infiltrator Chambers in the trenches according to the manufacturer's recommendations. Q,p,D0 L1, 8. Backfill the sidewall area v ith native on -site (sandy) soil for proper suppo 9. Backfill the trenched with a minimum of 12 inches of tamped soil cover. 10. Avoid vehicle traffic over the system. 0 Page 2 of 3 90 Z 1 1. The Septic System Installation shall be inspected by the Design Engineer prior to backfill. MINIMUM DIMENSIONS TO FACILITIES ACTUAL (MIN. REQ'D) SEPTIC TANK TO BUILDING 15 FT (5 FT) SEPTIC TANK TO WATER LINE 70 FT (10 FT) SEPTIC TANK TO ABSORPTION TRENCHES 15 FT (10 FT) ABSORPTION TRENCHES TO BUILDING 30 FT (20 FT) ABSORPTION TRENCHES TO WATER LINE 80 FT (25 FT) BUILDING SEWER TO WATER LINE 50 FT (10 FT) April 25, 2014 Lengel Septic System Soils evaluation ft. profile holes by H-P Geotech The above picture indicative of the soil conditions at and below the proposed elevation of the absorption field. The soil type is silty medium sandy loam (see H-P Geotech Re .lob No 104 2370). �AQO L1�+ Page 3 of 3 Item # 1 OQOT-ZCP Top View 1:,�; Section View 0 5n t 1000 Gallon Top Seam Two Compartment {11n 20" Clear A�ccess�• F— (Big Hole Lid & Riser) (•� �- . 0 53" 106" } W Rubber Sealant Dilgging Specs Invert Nnenslons 11' Long x T Wide Not Outlet Length Wkfth Height *Meets ASTM C-1227 spec W below inlet invert SW 57 111' 60' W Including C4644-06 for resilient connectors Nd city • 4000 psi concrete Inlet Side ' Outlet Total • Delivered complete with internal piping bar gallons 323 gallons 1,010 galbw • PVC, poly or concrete risers available • Option of pump or siphon installed Not weight Lid Tank Total 2,620lbs 9,380lbs 12,000lbs Water & Wastewater t • systems O VALLEY a Products ' ❑1PRFaCAST, Inc. • service (719) 39"764 Fmc (719) 395-3727 Webslte: www.valle, Email: fiontdesic9M I 9pr�S, r IZL ' *f �0N[Ak`i �1 SITE PLAN LOT 4 n EAGLE RIVER PRESERVE Town of I3ypsurn, Eagle County, Colorado V 4 ea Taa J t. n.lr p.. x+ttra:Yv mee '�UeryC1M P4d:� kw,o� r lei. hu. rpw.. ct Ya]! aura.: e�sc aa'b'a]' [ p�wm t56P wan rp s+ wr. a kr+'b o+o wP 3 Trxi W aFv.1FM ••er. ♦e�+IMYvm vuMv6 a110.ti', brMM 'n nerevnml Pw . �.st9v eva. YrN.w�i s�M hMa. M biF 3 �s r.r e SKEET nSc'3i e5: r, 1000 CxAL 6EPTIC.T"V-- L&VE- Z1 Zo Q¢ G#AMEMERS - LEveL 3, C4� 2),SPe PbftTS TO IxP-AAA 4. No ZI~F�tr AT10n1 NrA►~ OW-r9 516IJiu4u'roNE Pr.AGE L914"L ADV SEPTIC. SITE Pt.A4 NJ 2.iii -aft - [5-.004 WX a ' l01 pKsmw -o+xr or cm�1.r, rwcee oaw++', eotal.00 PwiL vuv+ur v0. ixe >w, m1F11] �� aAo-lii�fvm Oev� aF�v _ A136Pt 22. 2014 Jon P_ 0, Box 2188 Gypstrm. Colorado 8167 Joh No. 104 2370 Subject: Observation of Backhoe. fits, Existing Detached Garage. Lot 4, Eagle River Preserve, 575 Willowstone Drive. Gypsum. Colorado Dear .Ton: i As requested, a representative of Hepworth-Pawlak Geoteclinical; Inc. observed the backhoe pit excavations at the subject site on April 4. 20I4 to evaluate the soils exposed for foundation support. The findings of our observations and recommendations for the foundation design are presented in this report. The services were performed in accordance with our' agreement for professional engineering services to you, dated March 6, 2014. We previously observed the foundation excavation for the existing residence on the lot and submitted our findings in a report dated March 31, 2004 under - Our Job No. 104 �37. The existing barn lis several years old and being remodeled as an auxiliary dwelling unit (ADU). The rembdelin; will include a second floor living area in the current 10:ft. The ground floor will be slab -on -grade. The structure is reportedly founded on 18 inch diameter wooden posts bearing about 5 feet deep around the perimeter of the building. No signs of excessive settlement and distress to the structure were observed by us or reported by the owner. The existing residence, which was built in 2004, is Founded on shallow spread fo¢tings with no signs of excessive settlement and distress reported. The site is underlain by Pennsylvania Age Eagle Valley Evaporate bedrock. The evaporite contairrslgypsum deposits. Dissolution of the gypsurn under certain conditions can Cause sinlcltolgs to develop and can produce areas of localized subsidence. During previous work in & area.. sinkholes were observed scattered in the Gypsum and other areas of the Eagle valley. Sinkholes were not observed in the immediate area of the subject lot. Basedl on our present knowledge of the site, it cannot be said for certain that sinkholes will'not develop. In our opinion. (lie risk ofground subsidence at Lot 4 is low and similar Ito other lots in the area but the owner should be aware of the potential For sinklipie development. ti z VI o� z 0 d r< Q O ck9 m pUQw = 0 h�U N N= 0 LU z Q H -1 Q CO < o S. Q O Y U o Ln xYcq 1� O O �dim0U- O M Owci0 Q < N d T J z & 5 J m Q �^ z a Q ce) d U LU o o z Z � 2 U) ([3! W 7© z o o X.Mr �s f z O vJ Q LL ' 'h Z W r.eak'IY ,p O < O O U)LL Q Y < tt C) raw 0 Z O O Q O N 'rt�'rt v! � Y O m _U d i rva Jon Lengel April 22, 2014 } Page 2 2 At the time of our site, two backhoe pits had been exca ted near the barn. Pit 1 was about 3 feet from the southeast building corner and Pat was about 3 feet from the northwest building corner. The soils exposed in the pits, below a few inches of topsoil, consisted of loose, very silty sand to very sandy silt with scattered gravel and small cobbles that extend down to the pit depths of 614 and 7 feet, respectively. The sample from the bottom of Pit 2 (at 61/2 feet) was medium dense and rockier. The soils contained some Igypsum. Results of swell -consolidation testing performed on samples taken from the pits, shown on Figures 1 and 2, indicate the soils are moderately to highly compressible under conditions of loading and wetting with a moderate hydro - compression potential. The samples may have been partly disturbed. The laboratory test results are summarized in Table 1. No free water was encountered in the pits and the soils were slightly moist to moist. Considering the conditions exposed in the pits, the performance of the existing building and residence, and the nature of the proposed construction, spread footings placed on the undisturbed natural soil designed for an allowable bearing pressure of 1,500 psf can be used for support of the building, with a risk of settlement. The risk of settlement is primarily if the bearing soils become wetted and precautions should be taken to prevent wetting. Footings should be a minimum width of 18 inches. Loose and disturbed soils in footing areas should be removed and the bearing level extended down to the undisturbed natural soils, and the subgrade compacted. Exterior footings should be provided with adequate soil cover above their bearing elevations for frost protection or protected by ground insulation. Continuous foundation walls should be reinforced top and bottom to span local anomalies such as by assuming an unsupported length of at least 12 feet. A perimeter foundation drain around the structure is not needed due to the slab -at -grade construction. Structural fill placed within floor slab areas can consist of the on -site soils compacted to at least 95 % of standard Proctor density (SPD) at a moisture content near optimum. Backfill placed around the structure should be compacted to at least 90 % SPD and the surface graded to prevent ponding within at least 10 feet of the building. Landscape that requires regular heavy irrigation, such as sod, and sprinkler heads should not be located within 10 feet of the foundation. The recon naendations submitted in this letter are based on our observation of the soils exposed within the pit excavations. This study is based on the assumption that soils beneath the bottoms of the pits have equal or better support than those exposed. The risk of foundation movement may be greater than indicated in this report because of possible variations in the subsurface conditions. In order to reveal the nature of the subsurface conditions with depth, drilling would be required. It is possible the data obtained by subsurface exploration could change the recommendations contained in this letter. Our services do not include determining the presence, prevention or possibility Job No. 104 2370 G95tech .Ion Lengcl April 22. 2014 Cage 3 of (mold or othe is concerned ab consulted. you hzkvc any Sincerely. I-IEPWOILT 14 - biological contaminants (MOBC) developing to the fixture. if the client ut MOBC, then a professional in ibis special field of practice should be (pesi ono or iwed fui-ilic, a�3l�ialll'G, please (;all our office. GEU:LLCJ-iNICAL, 1NC. David A. Youn, P.E.Nip __qg DAYIksw attachments Figures I and 2. Swell -Consolidation Test ResErlts Table 1, SLIMMary of Laboratory Test Results i cc: Brock Consulting - Vern Brock ., "-`tee r 0 1 2 3 4 i LaM1 Moisture Content = 11.6 Dry Density = 80 Sample of: Very Silty Sand From: Pit 2 at 5 Feet Compression upon wetting percent pct 7 8 9 � 10 11 12 i 13 14 15 16 0.1 1.0 10 100 APPLIED PRESSURE - kst 1042370 (.7@ SWELL -CONSOLIDATION TEST RESULTS Figure 2 HEPWORTH-PAWLIK GEOTECHNICAL 0 2 5 6 7 8 9 10 11 0.1 1042370 Moisture Content = 18.4 percent Dry Density = 87 pcf Sample of: Very Sandy Sift From: Pit 1 at 5 %2 feet upon wetting 1.0 10 100 APPL3ED PRESSURE - ksf H SWELL -CONSOLIDATION TEST RESULTS Figure 1 HFPWORTH•PAWL.AK GHOT6CHFACAL . y � ��§•%fix" � wm kj n 2 % m \ \ k k ) F3V 7 } § § ow § 3�%2/\ j >C ) y o2lso@ C3 q/Rc>(n j M�/\k� �2�® § ® _(f) m --I\ 2 0 $ z ) § q ) | § F � § \ o_ \ ® 7 ..o \=7$�k\ § 2 / )\/�%§( / % \ )-j?, x G » ® n S \ (��§"0 > p w o ) ? % \ n 2 R �7$Q>c$ 27§�� m n/m�2 0§q\\\\/ kkKm n �}.vivoS7 .$ I O. • � § 2 3 � \ z § § > w m � m > / \ {� m cn Q O -n \ 0 m q M 0 90 x > m 0m Q -i > 8 q m R m § 7 C c1n) 0 g q » Cl)K > CA Cl) K_5 \ q > z / t r- m --I c m m q m ,« ® co M c m m z k 2 q I m q s ƒ < G § k 7 � § \ 2 e > \ z / / m m \ CD7 > ° �7 0 k \ / CP ..\ z / / » \ ;\/);, 3--00 $ m m e O 2\§a>m� > % ®°tg/-) \ m \ CD\ m § { p 3: \_ � / k \R § 2 >0\� >E ��5> -C O~f 2E'o /$§/ ®/>% 4 mtn 2 .--+ n z u3 O Q LU H a F- w cD w m m U) w w a Z LLJ O a 0 x CL m 0 LL 0 z n O 2 a ua z m a Q w v ❑ L% J U" a � F m z X 0 Q Z Z • LL- m N N r • T-, z` �, \�j\ (V z° - $� 45 w C g QO a a C� O ` w O Y,O c 7 _ U co z Few ` �Qa } <U 4_�i�5 z ? Q v ` b w o m I 1I OQ O 5 (C14, Y _ } ¢ 'K p cq 0 0, ~ tic 0 O bz�M W�' J L A. � C 4. w x LLI W 0 c�a Wo CL LU cn a. 0 _ UJ cc Lamu W co T< �•- O gam\ ,{ ,• a 1 r m E O tJ� I i LA N n m n n i S Z v i iPO '" o" aan a ZU) a .f c 41 m C > r i M z m O Obi 00A j X i a c a � � a o v, o o z v tnzDm N C) 00 m• mo2m �C)z r� D m m r e on n r Ch yn T U1 CS T n 0 .f a 0 z _ cn U� m �G m OQ C. ram. X O .Z7 m � rn ro � CA = C m D O -MC o = � CGD W r OrD �m © m 0 m 0 m = CA rn D cn r` C cn 0 BROCK CONSULTI"G, LLC Professional Services May 30, 2014 Eagle County Environmental Health PO Box 600 Eagle, CO 81631 Re: LENGEL RESII 575 Willowstone PN 2111-061-15- Dear Eagle County: The Lengel's are in the 1 agriculture building of 1 Pursuant to this request, serve the ADU. WE 'PLC P.O. BOX 3644 Eagle, CO 81631 Cell 970-471-2121 Fax 970-32"875 Lot 4, Eagle River Preserve, Gypsum, CO 81637 .ing permit process of the Town of Gypsum of converting an SF to an Accessory Dwelling Unit (ADU). attached design is for a separate OWTS on the subject parcel to The original OWTS (Syste n 1) was permitted for 1125 gpd Design Flow (ISDS permit #2338- 04). System 2 is designed or 450 gpd Design Flow. In accordance with Water Quality Site Application Policy Numbe 6, the combined systems of 1,575 gpd do not exceed the minimum combined design capacity of 2,000 gpd for CDPBE site or design approval. It is proposed to separate system trenches and to pi If you have any questions, Vern L. Brock, P.E. two systems by 12 ft, twice the distance required between same le a reserve area for the existing and future systems. do not hesitate to call. o�gpO ll� CJacR�4� o��ss�ONA1. BROCK CONSULT114G, LLC Professional Services May 30, 2014 LENGEL RESIDENCE 575 Willowstone Place, Lotj 4, Eagle River Preserve, Gypsum, CO 81637 PN 2111-061-15-004 REFERENCES ■ BCLLC P.O. BOX 3644 Eagle, CO 81631 Cell 970-471-2121 Fax 970-328-0875 Individual Sewage Disposal Systems, Colo. Dept. of Health, Amended 9/15/2004 Eagle County Regulations for Individual Sewage Disposal Systems (ISDS) Infiltrator Chamber Systems Septic Design and Installation, Current Edition Because of the site conditi ns and gentle slope, a Chamber Trench System is recommended for this site. Please note that e proposed building plans are for a 2 bedroom ADU residence. DESIGN FLOWS Number of bedrooms = 2, b laxir Qave = 2 bdrms x 2 person /bdn Qmax = 300 X 150% = 450 gpd Volume = Qmax/24hrs x V = 563 gallons Use 1,000 Gallon (2 coml compartment 500 gal, sea (3) perc holes were pre -so, rate and soil conditions we and the house septic syster profile hole revealed that s pictures). Soils were ideni Acceptance Rate (LTAR) A = Qmax/1.2gpd/sf A = 450/1.2 = 375 A As a double check, im daily Flow (Qmax) = 1.5 X Ave. daily flow x 75 gallons/person/day = 300 gpd SEPTIC TANK Detention Valley Precast/Copeland Concrete, Inc. or equivalent. First compartment 500 gallons. ABSORPTION AREA .ed and calculated a percolation rate of 8.0 mpi. The percolation found to be consistent with the original soils report for the house ISDS Permit # 2338-04 in 2004. In addition to that, the 8 ft deep it conditions were consistent and homogeneous to 8 ft. (see led Course to Fine VERY SANDY loam., a Long Term_., 1.2 GAL/Day/sf shall be used. Page 1 of 4 Using Eagle County Table , Absorption Area =165 SF/bedroom or 330 SF, For conservancy, this desigo to use 375 SF. v State Reduction for Trench s in Chamber System is 50% Square Feet per chamber is 10.0 (Quick 4) 30"x48" Final Absorption Area Req iced = 375 (0.50) = 188 sf Number of Chambers = ReWd Area/10.0 sf/chamber=188/10 =19 Chambers CONDITIONS! * Meets Manufacturer Minimum Recommendations Product to be Infiltrator Systems, Inc. "Quick 4" Chambers INSTALLATION Install all components to the required setbacks required by regulations. No over excavation allowed for septic tank. Install septic tank level. Install the delivery pipe from the residence to the septic tank and septic wk to absorption trench. All pipe to be minimum 2% slope, Schedule 40 PVC (ASTM D 2665) or C 900. Insulate under driveway or any parking area with 2" rigid insulation. Install chambers level. Connect relief pipe from trench to trench per plans. Backfill and compact the 0ipe trench, septic tank, and chambers to manufacturer specifications. Cover inspection lids wit maximum 8-inches of soil. All covers shall be child proof (100 lb. Min.). NOTES: 1. All installations shAl meet the rules and regulations of the Eagle County Environmental Health Division, Qlapter 4, Individual Sewage Disposal Systems. 2. The building sewe line from the house to the septic tank shall have a slope of/4 inch per foot (2%). Bet Lds in the building sewer shall be limited to 45 degrees. 3. The septic tank shall be installed level. The tank shall have removable covers or manholes to within 8 inches of the finished grade, for inspection and cleaning. 4. Strip all topsoil in ibsorption bed area. Reuse for vegetative cover. 5. Excavate three (3) feet wide trenches where possible. The horizontal distance from sidewall to sidew 1 between the trenches shall be a minimum of six (6) feet. NA. 6. The bottom and th sidewalls of the trenches shall be raked to eliminate smearing. 7. Assemble and ins 1 the Infiltrator Chambers in the trenches according to the manufacturer's re( 8. Backfill the sidew, 9. Backfill the trf 10. Avoid vehicle area with native on -site (sandy) soil for proper sup with a minimum of 12 inches of tamped soil cover over the system. Page 2 of 4 11. The Septic System t llation shall be inspected by the Design Engineer prior to backfill. MINIMUM DIMENSIONS TO FACILITIES ACTUAL (MIN. REQ'D) SEPTIC TANK TO BUILD NG 15 FT (5 FT) SEPTIC TANK TO WATEI t LINE 70 FT (10 FT) SEPTIC TANK TO ABSOI PTION TRENCHES 166 FT (10 FT) ABSORPTION TRENCHE TO BUILDING 190 FT (20 FT) ABSORPTION TRENCHE TO WATERLINE 250 FT (25 FT) BUILDING SEWER TO WATER LINE 50 FT (10 FT) BUILDING SEWER TOPROPERTY LINE 12 FT (20 FT) May 30, 2014 Leng l Septic System Soils evaluation 8 ft. profile holes by Owner .. :i F f- ' conditions at and below the proposed in pictures are indi cative of the soil P Po The here p elevation of the absorption field. The soil type is course to very sandy loam. o�Ppp LIEF, 1 , Page 3 of 4 �o��sslO S N NAi. 8 ft profile hole 6 3 _ > �71 h Perc holes #3, #2, #1 Vim West, May 24, 2014 0511 Page 4 of 4 EAGLE COUNTY OWTS PERMIT # BUILDING PERMIT # EVALUATION/PERCOLATION TEST COUNTY ENVIRONMENTAL HEALTH OWNER:an 14 d L l4k? Lt4 01 *" I PHSYSICAL ADDRESS: rj GJ ; y o ar s vt e. lolsce SUBDIVISION: Ea f I2`Ue,' /'PS4`ve LOT NO.: TYPE OF STRUCTURE: )& •t o I NUMBER OF BEDROOMS: 2 TEST HOLES PRE-SOAKED: YES ; NO TIME 115 2 ,z ff WATE E / z 3 INCHES OF FALL RATE solL PROFILE 0, 1030 ;>m 19 ` 0 tz �� 7« ,� g ��Z Z �2 tftZ 0 3.�� 21. 4 3 151/2/� q« 9 << 3 `%2 Z 3 39 '4$ j Q�t i�,��1 ��1/2� 2Ilz Z �l�i' Z lZ 2. C9 2.2 Z,Q 49 153 ZO 1Z f' 3 ` z" Z Yf C `12 z 0, Z 122.55 Z.5 59 0.56 2 211 (4 c/ftl 5'lz 1 ' 14 `!z Z 2' g 3�3� Z- S 6' ! ` ; O 3 Z Z �[2 C43�4 n 16 Y.Z �l2 2 1 0'0 t O 71) h 06 23�%4` I6 ,{ ►8 " 1 1 1 Yz 4.o 4. o �ks� 8, It 13 24'lz 17 04 3/4 3/4 6. 3 5 0 6.7 99 I��IZNt lZ 3% Vz 3!4 b. f�.� 6•� 109 TIME TO DROP LAST INCH: -r PERC RATE: w+ i MINIMUM LEACH FIELD SI : MINIMUM SEPTIC TANK SIZE: COMMENTS: i. [ Oct c,45616 WATER SUPP Y: k PUBLIC ❑ PRIVATES WELL LOCATION: OTHER WATER FEATURES: 1 ,� z_4 zn 4 �-.�.� —� moo,. f �� - ENVIRONMENTAL HEALTH SPECIALIST DATE '`Es �G� Item 0 1000T-2CP Top View 60" 1000 Gallon Top Seam Two Compartment 20" Clear A�� I ._ ,. (Big Hole Lid & Riser) tyl Rubber Sealant Digging Specs Invert Dimensions 11' Long x T Wide Inlet Outlet Length Width Height *Meets ASTM C-1227 spec 56' below inlet invert 56' 530 111' 60' 68' including C-1644-06 for resilient connectors • 4000 psi concrete • Delivered complete with internal piping • PVC, poly or concrete risers available • Option of pump or siphon installed Net Capacity Inlet Side ' Outlet Side Total 687 gallons 323 gallons 1,010 gallons Net Weight Lid Tank 2,620lbs 9,380lbs Total 12,000 Ibs P.O.Wastewater :., :2 Systems- ALLEY e ' • • MK _ • . _ � INf.- f- : w by r,► � = - + • U Z N J gym¢—�,ZQ w =oop a Up0 vca wFw U m Z OY�,INZ D p Q U Q V) f n Q w Z 0 v h J 0 Co 0 ov0W U N �[ wx�Q'rRM Zn - ~< ^ ^ r yCLXY (V f)O� 0 d d.yCQO Qop pO - (— C'7 O (,) Qw QaO�COOaC 0 W <�—'ay2Xt2 Z m w m p d" z m H L) a 3 O J N 0 Z � M t c I U w z CJ - a z O U �= a z z m pLd —_ p w w n wcoU) w Q p W U Go w m cnOQ=Z0 < OQ~ rn O Y W Z c Q U� z a- 0 w c p - Z L v z c O a c F- J LL z J Q w O z w U) Q w a. � n. 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LLJ u ui > I (L 0 LU 0(n 0. 0. 0 z � (L � �- ui < :ir L) of > m 0 0. uU, u z Ir uj 0 LLJ U) ui 0 L) LU < 0 =w Z LL, o� Y- < X < ui x U z � Q UJ W > U Q O ui cz f mLU m = �C)U v U C3 0 U p U J 0 m v v> o ° Y — Q � O �0�p� vow U O to x > '� � 0 ch CL x O N ^ N \ OOO2 O ('") 0 m CO CO z CD O cn a o o n Z — — w Z Cf) Q CL: a W Lu 0 - o o CL O } >- Q � I o � Cn + � o _ LEI Lr- � ` m U_ D 0 4NQQ L/0 ' 1 BROCK CONSULTING, LLC Professional Services November 5, 2014 VIA email: [environment@eaglecounty.us] Eagle County Environmental Health Department P.O. Box 850 Eagle, CO 81631 'JLLC 876 Mesa Drive P.O.B. 3644 Eagle, CO 81631 Direct 970-471-2121 Fax 970-328-0875 brockconsuiting@centurytel.net Reference: Engineering Certification Letter for Lengel ADU Residence Reference: OWTS 5-14-10614 575 Willowstone Place, Lot 4, Eagle River Preserve, Gypsum, Colo Dear Department of Environmental Health: Please accept this certification letter, OWTS serving the ADU residence Preserve, Gypsum, in Eagle County, Built Drawing, attached, and const licensed septic installer Vern L. Bro and owner Jon Lengel. as -built drawing and pictures as certification of the at 575 Willowstone Place, Lot 4, Eagle River Colorado has been installed as reflected on the As ucted per Eagle County Septic Regulations by ;k d.b.a. Brock Consulting, LLC (license #12-14) If you have any concerns with this submittal, please call me. Sincerely, Vern L. Brock, P.E. Brock Consulting, LLC cc: Jon & Eddie Lengel Attachments: AS -BUILT DRAWING, 11/05/14 Actual dimensions to Facilities as of 11/05/14 Progress Pictures of 11-05-14 ACTUAL DIMENSIONS TO FACILITIES SEPTIC TANK TO BUILDING SEPTIC TANK TO WATER LINE SEPTIC TANK TO ABSORPTION TRENCHES ABSORPTION TRENCHES TO BUILDING ABSORPTION TRENCHES TO WATER LINE BUILDING SEWER TO WATER LINE BUILDING SEWER TO PROPERTY LINE ABSORPTION TRENCHES TO PROPERTY LINE ACTUAL (MIN. REQ'D) 16 FT (5 FT) 35 FT (10 FT) 166 FT (10 FT) 182 FT (20 FT) 192 FT (25 FT) 25 FT (10 FT) 10 FT (10 FT) 23 FT (10 FT) Ll� 2 cc BROCK CONSULTING, LLC Professional Services P.O.B.3644 Eagle, CO 970-471-2121 Fax 970-328-0875 brockconsulting@centurytel.net M � Q v J � i 01 N Date: �&- 1, 7-6 4 Project: L�AJCtEL ADy Subject: �,L(7TlC A - S( U LT, ly _7 J O N N _ Lp °p N N 2 jz''z u� 1 ut 21 JON & EDDIE LENGEL ADU RESIDENCE OWTS # 5-14-10614 PROGRESS PICTURES 575 WILLOWSTONE PLACE, EAGLE RIVER PRESERVE SUBDIVISION, GYPSUM, COLORADO S a'Y����k3I. SIC_ i =. ti s; 3 . ��r 1 I Y1 c CLEAN OUT AT HOUSE NORTH SIDE, 14 FT-4 INCHES FROM FOUNDATION NE CORNER, 4 FT— 6 INCHES FROM FOUNDATION. SEPTIC TANK (VALLEY PRECAST 1000 GAL) SDR 3S OUTLET PIPE; CONCRETE RISERS NOT SHOWN, LIDS VERIFIED AT 2 INCHES BELOW FINAL GRADE AT COMPLETION, TANK LEVEL. TAR AT OUTLET NOT SHOWN. ?1p0 -LID , 0 1 Page 1 1 QUICK 4 STANDARD INFILTRATORS, TOTAL 21, LEVEL (DEPTH 36"); (2) INSPECTION PORTS A NOT SHOWN BUT COMPLETE. WORK PER MANUFACTURERS RECOMMENDATIONS. MAIN LINE, 4 INCH PVC (SDR 35) AT 2% - 3% TO INFILTRATOR TRENCH. DEPTH 30 INCH Page 1 2 lot; �ss/ONA� ENG� QEV ON CAP IS 625&6' t i g( t&:V(LG SITE PLAN LOT 4 EAGLE RIVER PRESERVE Town of Gypsum, Eagle County, Colorado WW t7N(E BA AJ K t00% KESIRv6 AREA, SY576M 2 V SCALE: 1"=2O' 0 5 In 20 30 b 50 W O Indicates found aluminum cap LS 9337. STREET ADDRESS: 575 YAlowstone Place Gypwm, GO 81637 BEARING BASE: S 44'39'33' E between USGLO brass cops at A.P. 4 Tract 50A and A.P. 3 Tract 69. ELEVATION BASE -- Elevations are based an found brass cap benchmark stamped 6278.14', located in momment box In W6lowstona Place. ELEVATION NOTE MhWwm first floor elevation Is 6261.3' for Lot 4. ElEV ON CAP IS 8280.7 '- - ELECTRIC Box 0 ` _ SPOT RAIL FENCE . '•'iSq!ALi � � �� �. 4_ /1 CUM E EV ON CAP is 6MI a" ON CAP -- SXF IELEPHWE RISER 'T\! IFES 466L 1tGS11**X 6 6281.6 __ LOT 5, _ s� p11L PLAN ELEW ON CAP L = 181.36' SITE PLAN CH = N794639W ,6O.W _ LOT 4 S�TNERN PACIFIC I EAGLE RIVER PRESERVE RAILROAD I , `� ^ t J (� Y TOWN GYPSUM, EAGLE COUNTY, CO, ORADO �TE I , P. O. BOX 115 2004 DATE MARCH 10, 2004 I 1 Ak 1 �, ' + I �_ f Yi 97700--5124-9623637 JW NO 04-034