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HomeMy WebLinkAboutSUB202000077 Study 2020-04-30 Page / of 6 OSE/PE Report For: riConstruction �"`t RepairIII Voluntary Upgrade Certification Subdivision I I Permit t I Permit Permit Letter Approval Property Location: 911 Address: City: Lot 4 Section Subdivision GPIN or Tax Map# 22-12A Health Dept ID# Latitude Longitude Applicant or Client Mailing Address: Name: Charles Sudduth Street: 4349 Burnley Station Rd. City: Barboursville State VA Zip Code 22923 Prepared by: OSE Name Thomas G. Hogge License#1940-001091 Address PO Box 418 City Charlottesville State VA Zip Code22968 PE Name License# Address City State Zip Code Date of Report Zit' .8.e, 6 � Date of Revision#1 OSE/PE Job# Date of Revision#2 Contents/Index of this report(e.g.,Site Evaluation Summary,Soil Profile Descriptions,Site Sketch,Abbreviated Design,etc.) 1-Cover 2,3-Site and Soil Evaluation Report 4-Site Sketch 5,6-Design Calculations Certification Statement I hereby certify that the evaluations and/or designs contained herein were conducted in accordance with the applicable provisions of the Sewage Handling and Disposal Regulations(12 VAC5-610),the Private Well Regulations(12 VAC5-630),the Regulations for Alternative Onsite Sewage Systems(12VAC5-613)and all other applicable laws,regulations and policies implemented by the Virginia Department of Health.I further certify that I currently possess any professional license required by the laws and regulations of the Commonwealth that have been duly issued by the applicable agency charged with licensure to perform the work contained herein. tiThe work attached to this cover page has been conducted under an exemption to the practice of engineering,specifically the exemption in Code of Virginia Section 54.1-402.A.11 I recommend that a(select one): construction permit ©certification letter © subdivision approval Obe(select one) Issued El ' epalr;permit-Q. voluntar i upgrade © Denied El OSE/PE Signature _�— Date � " 020 This form contains personal information subject to' sciosure.under.the Freedom of information Act: Revised 12/1/2014 Page 1.of . Site and Soil Evaluation Report VDH Use Only FIDIN. General Information Date:__24/34240 Albemarle County Health Department Owner: Charles Sudduth Phone: owner Address: 4349 Burnley Station Rd., Barboursville, VA 22923 Property Address: Tax Map/GPIN#: 22'12A Subdivision: Section: Block: Lot: 4 Soil Information Summary 1. Position in landscape satisfactory: El Yes ❑No Describe landscape position: Sidesiope 2. Slope: 14 % (14" in Reserve) 3. Depth to rock/impervious strata: Max. 49 in. Min. 40 in. 0 Not observed 4. Free Water Present: 0 Yes Gl No Range in inches: 5. Depth to seasonal water table(gray mottling or gray color): inches l3 Not observed 6. Soil percolation rate estimated: IR Yes 0 No Estimated rate: 65 min/in at 22 inches depth Texture Group: 0 I 0 II B III ❑ IV (65 @ 2"in Reserve) 7. Percolation test performed: ❑Yes El No If yes,provide additional data on percolation test results. Name and title of tor: Th alas Graharrr'Hggge, OSE Signature: - 0 Site approved: '! ?sorption benches ('describe-dispersal area,e.g.absorption trenches)dispersing Septic tank effluent (proposed level of treatment at time of evaluation)to be placed at 22 (inches)depth at site designated on permit. Site provides a total of 8,000+ square feet of absorption area for primary and reserve(if applicable)_ 0 Site disapproved: Reasons for rejection(check all that apply) 1. 0 Position in landscape subject to flooding or periodic saturation. 2. ❑ Insufficient depth of suitable soil over hard rock. 3 0 Insufficient depth of suitable soil to seasonal water table. 4. 0 Rates of absorption too slow. 5. ❑ Insufficient area of acceptable soil for required absorption area,and/or reserve area. 6. 0 Proposed system too close to well. 7. 0 Other(specify) This form contains personal information subject to disclosure under the Freedom of information Act. Revised 12/1/2014 Page jof, '_ Date of Evaluation: 3-10-20 Profile Description SOIL EVALUATION REPORT Property 1D: Tax Map 22-12A,Lot 4 Where the local health department conducts the soil evaluation the location of profile holes may be shown on the schematic drawing on the construction permit or the sketch submitted with the application. If soil evaluations are conducted by a private Onsite Soil Evaluator or Professional Engineer,location of profile holes and sketch of the area investigated including all structural features(i.e.sewage disposal systems,wells,etc.)within 100 feet of the site and reserve site shall be shown on the reverse side of this page or prepared on a separate page and attached to this form. ❑ See application sketch 0 See Construction Permit B See sketch on reverse side or page attached to this form. Hole# Horizon Depth Description of color,texture,etc. Texture (Inches) Group 1 A 0-1 7.5 YR 2.5/2 very dark brown silt loam;organics 3 Bw 1-16 7.5 YR 414 brown,heavy but friable silt loam W/Hoots 3 Ct 16-33 7.5 YR 414 brown,silt loam w/clay flows 3 C 33-47 10 B 2.5/1 blue black silt loam;some parent material(PM)fragments 3 2 A 0-3 7.5 YR 2.5/2 very dark brown,friable silt loam;roots 3 Bw 3-21 10 B 311 very dark bluish gray,light,friable,gravelly silt loam;few parent material fragments 3 Ct 21-37 10 B 2.5/1 bluish black,friable silt loam;some PM fragments; 3 C 37-49 10 B 2.5/1 bluish black,friable,channery loam;common PM fragments 2 3 A 0-2 7.5 YR 2.5/2 very dark brown,friable silt loam;roots 3 Bw 2-18 10 B 3/1 very dark bluish gray,heavy but friable silt loam;few parent material gravels 3 Ct 18-40 10 B 2.5/1 bluish black,channery silt loam;some PM fragments 3 4 A 0-1 7.5 YR 2.5/2 very dark brown,friable silt loam;roots 3 RESERVE Bw 1-16 5 Y 3/2 dark olive gray,heavy but friable silt loam w/some roots 3 BwC 16-31 5 Y 3/2 dark olive gray,channery silt loam w/ 5 YR 4/6 yellowish red;few roots 3 5 A 0-2 7.5 YR 2.5/2 very dark brown,friable silt loam; roots 3 RESERVE Bw 2-10 10 B 3/1 very dark bluish gray,friable silt loam w/roots;some PM gravel 3 BwC 10-14 10 B 3/1 very dark bluish gray,channery silt loam;some PM fragments 3 REMARKS: Profiles are consistent with mapped Watt(weathered from graphite schist). All colors are lithtchromic in nature. All borings were terminated near Cr boundary This form contains personal information subject to disclosure under the Freedom of Information Act. Revised 12/1/2014 -nut • Page ce- of 4 . SITE SKETCH SHOWING PROPOSED PRIMARY AND RESERVE SEPTIC, TAX MAP # 22-12A1, ALBEMARLE COUNTY, VA SCALE: 1" = 100' .0.. Tc,, ., , ...-....1....,........ft.-- ,,,., - - • . -, z,,,..,It 4,..'4,;_ig . "%14/.° . it ,... ig . i• , . •• 4.,-: - ., • _ -.,.. ----F• \ 67-6 F-Aisor,%..._-__, • '- , - o., ,,e„-.. .4 :. ..., • _ . k ' ' ' - Las . :, •14 I:- ,- --..., . 'b.. . ---- . _ -__, VOFP, - 344 di. . 0 .i. IS, AT ..„,, ,„,, _ i. .,„_.. 7 - 1: , - % '• V4.74"of•014."•Z __:,--,_ -- ,, ". - --- ' '- ' 6 „,.... ›,. „.-. ,2----.5... 00' 1. i, -,,,T6.f .,„_......-, .,,,.. -.-.- 440.,,,_ baref, R494 ,e . _. ,_ .. . ., 4., , --_, ,•:-___ fiq470,,,,,T-.--"u - ,t. --,;,. ti*I-',,,I--- 17,-;-..-- :•)' i :', N. Zit 4, -'' '''''''',- -7' -.'!'- '''-'-' • ,--, oi. -- •.- ,, , 4- ..., .. .. _. rr,q.'ir"-----e--------,-*.- :- - - ,,----------•,-s---' m, - ,..._., ,- _ .___ ,.. • • ,•:i ..... - - . 4 • ,... I : 4.: ! • . .1._ • ,....: ...., tlIt i• tv, ,.„..,..„.. —. ,N. 4.im----- ".•-iel—p. 4 * ,. V „. ;'.::::-. ,7,1.:„...-7.,.1. : .i• ;, .-1 ,,,,3c,- .., , .. ., vi p?1, , N .!, ! lit.L.,744, kr,0,. -- • 0,. _ .,--- - ,1 ... . . ,.‘....d- ';, ,, i ' - - • 0 •,, ..., C :- • .- 14) 1,,, •.#ii cA, --.-..„..--,- -,...--. •'.. ,, I :,-,k--tiluountt.t ,--„-•' , N. 4ti.A. ' '''';-is,...1.7..es. ' . -0,-4 - i. i• • - i,,Q ,,-- -..?,.. 4, ,-,. if ---..a. -...., .44., • _ . ,C.f•, ,,. Cti-- '614_ =.* -49......,---1, - 1 • 4 •. .141 41,177,,r;;LD,,,:: if- - .4.....-... p, ,. -.'. a› '`.„ir e-, ; lk 7:--. .:'--i-:-1.- '''•-•. 0 an /) ' '77 63.11 nFm ., A. f.0, Arfi; , , , .A.-4..,.4.1-4: i ,•,, / --- : ii.,7 \,., 4 .WW-1 ;.1 D1711 .....- eply, in-7; ,,. t• r„,-...,:(-,, 1 :,'2 '.74 ' i . 1 ' 1 .--,i''.., --- oFg...-.. . y, --- • , . . , 1..-_..4i2, .,, _ 1. CA.r....x,„ ),, 51 , tm, /5,1, ( --2.:.---7, .: ' :--F.,A., L,77:7, ,..__,,,_w:- 1: ,„ •„--„, 1•.t. .1 2-...6? ‘ L.171A tit ., -•-• - 4 ,o, it ,:.•. . -.A..,. . . .*r .-.. ,.,.,.,......_:_. I .. ..-.. .1.,-:, 1 _.,• ''"-Ar-i•-. 7,-,‘ t.'1' 'in la i. IP!- fijilea"7-1."- -_- ..:-.2____:::.7,,.:.1_--_-'...-----: i'i.it.if-_,=.:21:... -'',I 11. •o •,. 24 it _ iD,URI 4! _ ,_ 1.__:L:LL -7 `•-•=e-:: ;:, --*',v! , g -4'i fr°1_ii .ii .1 ,iii n ,..,-a e ! ; ,. 1 '.: IS bee ' 48 o : It ,g444>a i„ ,;J: /' 0 , I 7--- A •. b :.... T ,.....,„.., ,' ..f /_ n,eti rs-,1-1,. P. nut, • 'v./id _. .. / t 'Pl...5. 00 1.4.T is _ ._ : t 1 TR •1!'dit71r,if rh -7tAril'i,• t•I'''R-Ft / . _:,-• 1 -. !... . LEGEND . . ...._ - ........ .400.- --_, .__-.....•o..---a.— :6, 0 Auger Boring :.----- 91"--BLUE RID ....GE ' -, ..-. 3Cos, Proposed Well Spot '- . Alim SOIL CONSULTING, INC. If , Proposed House Site AUTHORIZED ONSITE SOIL EVALUATOR (AOSEs) ,r?o.Box.4 18 Ruckersville,-VA 22968 (434)9.85-2780 . _ . . . Page S of 6 Design Calculations Proposed Division of Tax Map 22-12A "Lot 4" Albemarle County, VA PRIMARY DRAINFIELD Design Basis A. Estimated Percolation Rate 65 22" (Minutes per inch) B. Trench bottom square feet 496 Required per Bedroom (from Table 5.4)based on ®Gravity ❑LPD El other: EZ FLOW,PER GMP 135.A C. Number of Bedrooms 3 Area Calculations: D. Length of Trench(ft.) 100 E. Length of Available Area(ft.) 100 F. Width of Trench (ft.) 3 G. Number of Trenches 5 H. Center-to-center spacing(ft.) 10 I Width required (fL) 43 J. Width of available area (ft.) 43+ K. Total square footage required 1488 L. Square footage in design 1500 M. Is a reserve area required? yes see next page Page 6.of 6 Design Calculations Proposed Division of Tax Map 22-12A "Lot 4" Albemarle County,VA RESERVE DRAINFIELD DRIP DISPERSAL W1TH TL-3 EFFLUENT Design Basis A. Estimated Percolation Rate 65 mpi @ 2" B. Square footage 1000 (150GPD/0.15 GPD PER SQ. FT.) Required per bedroom Based on ❑Gravity❑LPD Other: TL-3 EFFLUENT TO DRIP DISPERSAL, PER 12 VAC 5-613-10,REGULATIONS FOR ALTERNATIVE ONSITE SEWAGE SYSTEMS. C. Number of bedrooms 3 Area Calculations D. Length of lines(ft.) 100 E. Length of available area(ft.) 100 F. Width of trench (ft.) n/a G. Number of lines 15 H. Center-to-center spacing(ft.) 2 I. Width required(ft.) 30 J. Width of available area(ft.) 30+ K. Total square footage 3000 (1000ft2IBRx 3 BR) required L. Square footage in design 3000 Page I of ' OSE/PE Report For: fl Construction Repair Voluntary Upgrade �"'1 Certification ri Subdivision Permit Permit Permit J Letter Approval Property Location: 911 Address. City: Lot Section Subdivision GPIN or Tax Map# 22-'12A1 Health Dept ID# Latitude Longitude Applicant or Client Mailing Address: Name: Charles Sudduth Street: 4349 Burnley Station Rd. City: Barboursville State VA Zip Code 22923 Prepared by: OSE Name Thomas G. Hogge License#1940-001091 Address PO Box 418 City Charlottesville State VA Zip Code22968 PE Name License# Address City State Zip Code Date of Report 91 f O. Date of Revision#1 OSE/PE Job# Date of Revision#2 Contents/Index of this report(e.g.,Site Evaluation Summary,Soil Profile Descriptions,Site Sketch,Abbreviated Design,etc.) 1-Cover 6,7-Design Calculations 2,3-Site and Soil Evaluation Report 4-Site Sketch at 1"= 100' 5-Site Sketch at 1"=200' Certification Statement I hereby certify that the evaluations and/or designs contained herein were conducted in accordance with the applicable provisions of the Sewage Handling and Disposal Regulations(12 VACS-610),the Private Well Regulations(12 VAC5-630),the Regulations for Alternative Onsite Sewage Systems(12VACS-613)and all other applicable laws,regulations and policies implemented by the Virginia Department of Health.I further certify that I currently possess any professional license required by the laws and regulations of the Commonwealth that have been duly issued by the applicable agency charged with licensure to perform the work contained herein. The work attached to this cover page has been conducted under an exemption to the practice of engineering,specifically 'the exemption in Code of Virginia Section 54.1-402A.11 I recommend that a(select one): construction permit ©certification letter El subdivision approval Elbe(select one) Issued El repair permit El voluntary upgrade )] Denied El OSE/PE Signature_ . _ Date T 3 o. ,o This form contains personal information subject t isclosure under the Freedom of Information Act. Revised i 2/1/2014 Page .c2 of Site and Soil Evaluation Report VDH Use Only HDIN: General Information Date: 4f, .• 6 Albemarle County Health Department Owner: Charles Sudduth Phone: Owner Address: 4349 Burnley Station Rd., Barboursville, VA 22923 Property Address: Tax Map/GPIN#: 22-12A1 Subdivision: Section: Block: Lot: Soil Information Summary 1. Position in landscape satisfactory. B Yes ❑No Describe landscape position: Sides lope 2. Slope: 10 % (17%in Reserve) (24"in Reserve) 3. Depth to rock/impervious strata: Max. 40 in. Min. 30 in. 0 Not observed 4. Free Water Present: ❑Yes It No Range in inches: 5. Depth to seasonal water table(gray mottling or gray color): inches 8 Not observed 6. Soil percolation rate estimated: 8 Yes 0 No Estimated rate: 65 min/in at 18 inches depth Texture Group: 0 I 0 II 8 I I I 0 IV (65 @ 12"in Reserve) 7. Percolation test performed: D Yes lJ No If yes,provide additional data on percolation test results. Name and title of a tuator: ` rhas.Graharp Ho99a. OSE Signature:_ - _, Cl Site approved; Absoipugntrenchgs _;(describe dispersal area,e.g.absorption trenches)dispersing TL-3 effluent (proposed level of treatment at time of evaluation)to be placed at 18 (inches)depth at site designated on permit. Site provides a total of 8,000+ square feet of absorption area for primary and reserve(if applicable). 0 Site disapproved: Reasons for rejection(check all that apply) 1. 0 Position in landscape subject to flooding or periodic saturation. 2. ❑ Insufficient depth of suitable soil over hard rock. 3 ❑ Insufficient depth of suitable soil to seasonal water table. 4. 0 Rates of absorption too slow. 5. ❑ Insufficient area of acceptable soil for required absorption area,and/or reserve area. 6. 0 Proposed system too close to well. 7. 0 Other(specify) This form contains personal information subject to disclosure under the Freedom of Information Act. Revised I2/1/2014 I Page of 'r Date of Evaluation: 3-30-20 Profile Description SOIL EVALUATION REPORT Property ID: Tax Map 22-12A1 Where the local health department conducts the soil evaluation the location of profile holes may be shown on the schematic drawing on the construction permit or the sketch submitted with the application. If soil evaluations are conducted by a private Onsite Soil Evaluator or Professional Engineer,location of profile holes and sketch of the area investigated including all structural features(i.e.sewage disposal systems,wells,etc.)within 100 feet of the site and reserve site shall be shown on the reverse side of this page or prepared on a separate page and attached to this form. AUGER BORINGS 0 See application sketch ❑ See Construction Permit El See sketch on reverse side or page attached to this form. Hole# Horizon Depth Description of color,texture,etc. Texture (Inches) Group 1 A 0-4 5 PB 2.5/1 bluish black silt loam 3 Bt 4-22 10 YR 2/1 black,light,friable silty clay loam 3 C 22-39 10 YR 2/1 black,friable,channery silt loam graphite schist saprolite; 3 A/R@39" 2 A 0-4 10 YR 2/2 very dark brown loam 2 Bt 4-20 10 YR 2/1 black,light,friable silty clay loam 3 C 20-30 10 YR 2/1 black,friable,channery silt loam graphite schist saprolite; 3 A/R @ 30" 3 A 0-5 10 YR 2/2 very dark brown loam 2 Bt 5-24 N 2.5 black,light,friable silty clay learn 3 C 24-40 10 YR 2/1 black,friable,channery silt loam graphite schist saprolite; 3 AIR @ 40" 4 A 0-5 10 YR 2/2 very dark brown loam 2 RESERVE BCt 5-24 10 YR 2/1 black,very light,friable,channery silty clay loam to loam; 3/2 AIR @ 24", 5 A 0-5 10 YR 2/2 very dark brown loam 2 RESERVE BCt 5-24 10 YR 2/1 black,very light,friable,channery silty clay loam to loam; 3/2 AIR @24" REMARKS: Soil profiles are consistent with mapped Watt series.All colors are lithichromic in nature. This form contains personal information subject to disclosure under the Freedom of Information Act. Revised 12/1/2014 Page y of 7-- SITE SKETCH SHOWING PROPOSED PRIMARY AND RESERVE SEPTIC TAX MAP # 22-12A1 5 5 ALBEMARLE,COUNTY, VA SCALE: 1" = 100° / I .. IF r0 - ,,...._ II r7 E-•e4 it i --,-----7.-------,; "-r- *, ,, , 4-: auFFix.-1, 4 Trom S 7 ,.. ---. ..--/ ,u,,, ' FIE Art ..-- ' . . _ .., • "‘. ‘., ,CIFIC' ,., N. . , ,,!..,,,,,, DFC ,),:juse-- .,7: .t.,- 't 1 2A 1 \_ / t0 ACRES ''' A 002 '-'"7"--'s 424P-- I •11.1.! ',09 . l 110!......% .0 ', tilli.I rsiFIEL D. ev.,t..1.iry 0 '.. IAAEiti f+to*- - ----47I-'''D —700 i , , • . .-..:;--.--- .„ 1. :. •. 1.19G7 ,: z itilyi . -",..f.1,1-T.'m I'. 1\•///3 0 aVi•CiN, Z. I". .,..,,' / .,,, -1-b, /n ,.., 0.,„ • .... •-•„zi•e 'eq :Oil_ 1111'T s. .4 - 49.40 zf......• , _--- ._ f : ....„.‘i Tir4.... LEGEND _ 4 • ounismow I a) Auger Boring ••184°.....°°'°# ;;;ZIE 3CE, Proposed Well Spot , INC. SOIL CONSULTING,ib—Ak -X Proposed House Site AUTHORIZED ONSITE SOIL EVALUATORS (AOSEs) RO Box 4 18 Ruckersville,VA 22968 (434)985-2780 , CONTROL POINTS 1 / I C2 ER ACCURACY _ ' , , -657 '56'33"E .-- 15..42' 7......1 C3 ITEI AMERICAN North 3 -/./952028 IS 983 I4AD83) East 11.525001 '...'IF SOUTH •SPC , ,,, T...M.L22-12B .t.31 JOSEPH K.SUDOUTH ak 0.B.1626-666; "to CD. 669 PLAT 'HE Copy &P pL 4-r e .,-- 9103°5632" T,M.22,-.1 , ' r") 379.9B' li TY OF ALBEMARLE ft, . / -co co' w D.B. 1.456-229 6)-. . '. )•6. 1600-414 .cb 0) 0 ... HRU 417 PLAT 6.10'le'35"E - IF. , .„,IF ,. # ..-144,..39' '' .. 'A- ra:. • . to-TP , . - .0- - al • 1\ • .-1.0A , 'co . 9 PROPOSED n'. 3' .... ,T.F r ';,......„„..."- ..,. --.,...... Q:-. LOT L8 , .. 71007-§f"--- ---"- .•-• . V .\ r>) •''-., -. -APPRO ,--------N ST .:" OATE Lon .,--' / . • - .- \ $7$,:- _. •, LArzo, , '------ iv REAkh..---'" .7 ' \ - 36 -.- I'm '>_.:: 'FOUND' - 100•sTRp,.,, Ari '(Z".' \ .-;C:-.?"'14 ao - ."-------!z-'T:" BUFFER ,-- - -- • -• ' N.! -.; ic:). o'rt •---_:-..*:-:.,:.'•-oP• cr), .....„,..„--; -11iIk A- as /.. ' . T ih R2 'I2A NESIDUE 22. 31 iACRES Alk,C.FEC.Fp oTIsCo a 5 01..0.0_, is. 'to OM t!) ‹,\ TRACT A MAIM-41E14D AKA • In - .N-1 kt-ta.c•, ...7 ' , i ',-- F,' ,c) 'cli V.: , ,.. j'' i D : -d.... ei, 'N11 ,,I„. c W.B. 160-700 , Lu..OF DFc- 1// , W B. 150-410. D.B. 4599.-676 • . 6-5, b 1 L4 'L'-i 4 ' . ' ''''''''.-L?: L3 D't: --- -1 .0.8,4626-669 PLAT' /P. . -.-,.._"-"-S--,-02:L = L2,-- 0:B 659-79 PLAT ',NEW 30'PR I YATE -------. 7 - --n., ------ -..-'.------ HAi7.38. • ---"--7- --;.—,... STREET EASEMENT &c $.884.ilEv.,5 " . .4.14?,.asi' ' T' . AT....),s>,. co • 5.00' -• - IS North 3950916. ii East 11'52599311, . , - ,1 • - ‘‘. T,M..22.--10A •, . . .. .,,. i M j' ICHAEL ,DUEWEKE" .00'. 1 \. 'PROPOSED .CATHY W.-DUEKKE a). -- 0.8.4401-598 "0• a, . -.<•P' .4. REVISED, 0,6.2243-596 0,.6.11459-294 PLAT ....04""411.4 4s ' ISC) 4-)1 \\' F9OPOSED 0.Ai....-• ' - .., •/ - ' F : --..- - • ', . • .. - . . . s. ..., ', 0':sn, •?v.:. North 3950456 E_ast 11525 .107 - TM22-10D S ..,4 IHIC SCALE i "F=200 ' -1 1, cri°•i, , .. .w 4i .0 WAV - '•• ' (iN, A.` Cap-8#1940-.*0' ' .. AVIOOMMOMMlitt' '' ':-.1. 44114seseno.... ' CH... _ . .. . _. . . :200 400 60 0 .:. . iftwedsolmiliro..,1•Mo..1 . . •_ .0.0 — - • 1 Page &.of Design Calculations Tax Map 22-12A1 Albemarle County, VA PRIMARY DRAINFIELD Design Basis A. Estimated Percolation Rate 65 @ 18" (Minutes per inch) B Trench bottom square feet 263 (150 GPD/0.57 GPD PER SQ. FT.) Required per Bedroom (from Table 5.4)based on ❑Gravity ❑LPD El other: *TL-3 EFFLUENT TO GRAVITY-DOSED TRENCHES,PER 12 VAC 5-613-10,REGULATIONS FOR ALTERNATIVE ONSITE SEWAGE SYSTEMS. IN ACCORDANCE WITH GMP 156,TL-3 EFFLUENT MUST BE PROVIDED BY AN APPROVED PROPRIETARY NITROGEN REMOVAL TREATMENT UNIT,PROVIDING A NET TOTAL NITROGEN REMOVAL(AT THE PROJECT BOUNDARY)OF 50%. C Number of Bedrooms 4 Area Calculations: D. Length of Trench (ft.) 100 E. Length of Available Area (ft.) 100 F. Width of Trench (ft.) 3 G. Number of Trenches 4 H. Center-to-center spacing(ft.) 10 I. Width required(ft.) 33 J. Width of available area(ft.) 33+ K. Total square footage required 1052 L. Square footage in design 1200 Drip reserve*see next page* PageFof � Design Calculations Tax Map 22-I2A 1 Albemarle County,VA RESERVE DRAINFIELD DRIP DISPERSAL WITH TL-3 EFFLUENT Design Basis 65 @ 12" A. Estimated Percolation Rate 1000 (l 50GPD/0.15 GPD PER SQ.FT) B. Square footage Required per bedroom Based on ['Gravity ❑LPD f Z[Other: TL-3 EFFLUENT TO DRIP DISPERSAL, PER 12 VAC 5-613-10,REGULATIONS FOR ALTERNATIVE ONSITE SEWAGE SYSTEMS. C. Number of bedrooms 4 Area Calculations D. Length of lines(ft.) 100 E. Length of available area(ft.) 100 F. Width of trench(ft.) n/a G. Number of lines 20 H. Center-to-center spacing(ft.) 2 I. Width required(ft.) 40 J. Width of available area(ft.) 40 K. Total square footage 4000 (1000ft2BRx 4 BR) required L. Square footage in design 4000