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HomeMy WebLinkAbout1985-03-28 Septic System Design Reporti-., ■ I— (-■ I •- r SITE EVALUATION REPORT FOR JENSEN HOMES LOT 2, BLOCK 1, FRENCH CREEK ORONO, MINNESOTA 3-28-85 > 1. Percolation Rate. Type of System. For the primary 8ite(holes 1-4) the average rate is 12.5 minutes per inch. For the alternate site(holes 5-6) the average rate is 6.9 min­ utes per inch. With the lack of a high water table, both sites would qualify for standard trenches. Testing was not done by us but by S-P Testing, Inc., and this design is based on their results and tests. 2. Proposed Flow Rate. 4 bedrooms € 150 GPO is 600 GPO. 3. Soil Treatment Area Required. Use 1.67 percolation factor x 600 GPD s 1000 Sq. Ft. of trench area I 4. Size and Number of Trenches. If the primary site is used, 4 trenches 3 feet wide and 83.3 feet long would yield 1000 Sq. Feet. If the alternate site is used first, 6 tren­ ches 3 feet wide and 55.6 feet long would yield 1000 Sq. Feet. These trenches would be spaced a minimum of 7.5 feet apart center to center. 5. Drainfleld Rock Needed. 55.6 cubic yards of rock is needed to have 12 inches under and 2 Inches over a 4 inch distribution pipe. 6. Septic Tanks. Two septic tanks each of 1000 gallons are recommended. Since the prim­ ary site is at a higher elevation, it might be necessary to use a third pumping tank and pump to serve even the first floor. Also, an ejector pump would be needed to serve the basement. If the alternate site is used first, perhaps gravity flow from the first floor would be possible with only the ejector being used to serve the basement floor. If there are any other questions, please contact me. Sincerely, PERCOR, INC. Mark S. Gronberg, P.E.^ { \ ike fej . -* « 'S > tVj \ ei4.9i'L- hi— --\V '.»•____-jL_____I —)'<iv.—--------------------h-\»' r II7.44' s . i ty 4:- -fz S *’*11 L»»Vi • n/b ‘v>'*1 ... w i?-i ^vVto £ I VI i 4 4vU I VIA: IOk;VC>I JV Sw^5-’<5^«)5C"'®<% I ■ts>5:^: V) . ? Bi t M•VC\A u ‘Mv: I ■ .n'• • s I? !-•. I +• 0 W1 •v 3boIhVap .£. n'tIV ' IL xfks'if 2 I ^ sI til■i-if•j:IiJT \X.V .5 tSu •4 •ft r I i I i I \ \ ^ ^ \ \ \\ ♦x / II \I I I I i ----r 7 \t v^'i.• -X-i-.i.;..I.., K:.-K- m\\} I «v r < ml \ 7 A m -t• r:i I1-f rf 3:v^•t •t iH. .✓ V‘-1rs»r vl / / ’ * I/-••',.1 Ij ^ y \ i 53 I (, \r i t V t '\Af M'A' I ' \ ''Ty •A y-r1 *, - - || ■ 7 i I 1■:a •>I !y^ « J f*.V,I I3e •ii ' M •:v* x;:i- • :.r, m1I*v*\ I'l'lA«.Is.V.1 IV..* . ' . . ..y? . |3V'»- V' I ■.-•» it..V'•V-', -r’. V Y-'- mm • r •.:*;n- I ' ^ ^ ^ . '' 'i ■■ * . ‘f t- ■ ••*■ . ^ - - , 'V -'-r Vi_^7^ .- » *«r-* > »- fv ■ •i-7r''T‘'‘ ‘ ,♦ i?■ •V i i?■* pe - ■, 'V f 'V • - r 4 r « . SEPTIC SYSTEM INFORMATION 9 STREET ADDRESS l?0^ 1^/e.WB_ _ _ _ _ ^ BLOCK / SUBDIVISIONLOT MONTH AND YEAR TESTING DONE 19 ITEMS ALREADY COMPLETED (jO f^C rTf’STX ^ ^ NEED TO COMPLETE BEFORE ISSUING BUILDING PERMIT; BORINGS, o PERC TESTS & ® o SYSTEM DESIGN SITE PLAN OTHER COMMENTS ^arH DATE THIS SHEET FILED 3 - ! ' <B T_ _BY SUBDIVISION FILE NO. O // MOiM i 1 i •: i i i mmmd i I L>U » % i! \ I l^ I V PEtCOLATIOW TEST DATA SHEET TMt hoi* location iS ^ ^VocV. \ Dntn tnst holn van praparad_ _ _ _Co-^T-SM . C3 Hola nuabar 1 , Depth of hola bottoa. 30 inches. Diaaatar of hole.inches. Soil data froa test hola: Depth* inches 0‘\Q" Soil texture «\o"-v-irN cVui.\ Vo ck ^fo<.OrN. \oc^.<^s•N vj^l^rCk-CtS C^^ i Hethod of scratchina eideeall Y.c\S e. Depth of p»ia-aised gravel in bottoa of hole, a Date and hour of initial water filling_ _ _ Depth of initial water filling, inches. inches above hole bottoa. Hethod used to aaintain at least 12 Inches of water depth in hole for at least 4 hours f\.K^jN.-\'N/vViuc. _ _ __ _ ' Percolation test tradings aade by .*^\£ocrN^.'S>cV-\\ri%NiC^ on , starting at ’ **®*^*“® water depth above hoi (date) during test. # hole 63 * inches. Tiae Tiae . Interval, Ninuteg Neasureaent, inches Drop in water level, inches Percolation rata, minutes per inch Renarks # a. AT S‘.VC> L,2l 3'Sc>4> ifc» ID.C) # * ■ i • Percolation rate \o,^minutes per inch. {■ J V ; t I 5 > { I L-U PEiCOLATIOM TEST DATA SHEET TMt hol« location ■ i Hola nunber 3 Data tost hola vaa praparad Dlaaatar of hola, (gp Inches. Depth of hola botton. ?0 Inches. Soil data fron test hole: Depth, Inches O*\o' Soil texture *VO*. i OC» &r,gj .'X *5i6k>V\0 ito'- SCJ"O »jOi^VoCvrw Vc .J cVa-A Vocs. Method of seratchlnA aldavall Kcn'iCc, Depth of paa-slzed gravel In bottom of hole. Data and hour of Initial vater tilling _____ _ _ _ _ __ Inches. Depth of Initial water filling.Inches above hole bottom.A Method used to maintain at least 12 Inches of water depth In hole for at least 4 hours fi uA, o A-NcxtjLe >>> Percolation test readings made by S.?\.-r. S'V.e >. (^ on ♦ (date) . . during test,_ _ _ _Cg starting at a.m. TCiS? ■Maximum vater depth above hole Inches. Tima Tina Interval, Mlnutaa • Measuremane, Inches Drop In water level. Inches Percolation rata, minutes per Inch Remarks # # 3 ■.3(0 3'. 3*1 3~.ob 6 Q> \% 3‘*S ^io I'M 9S.O oi^.O Percolation rate minutes per Inch. ■m i t. i' I i { ! t C I \ r. ir 5! V p T bi L-U * ■ < •prac^Tioj|_iBST_nm_sHm % T#st hoX« location *S\4c. ^ ^^Vock, \Hole number Date test hole vaa praparad Dlanatar of hole, C9 Inchea. Depth of hole botton. SO Inchea. Soil data fron teat hole: Depth, inchea O - 'C> ' Soil texture /T.\e> ^Sc>\ V C^txC VC c>' cyr» o>> %\cr- Vocs.<''‘‘N ^TexC C <Vc r A. Itethod of acratchinn aidawall \<r\\Pe. Depth of paa-aiaed gravel in botton of hole. Date and hour of initial water filling G?- P Depth of initial water filling, inchea above hole botton. Inchea. »• ^ Hathod. uaad to naintain at laaat 12 Inchea of water depth in hole for at leant 4 houra ri^ t Vr.rvxr^Xie^ S‘>.pU; teat readinga nada by ____atarting at_____• (date) . • during teat, ______Cp Percolation Qr^kieA ^gOPrv G>.SLVv\r .y geS On Maxinun water depth above hole inchea. Tine Tine • Interval, Minutae 'r- Meaaurenant, inchea Drop in water level, inchea Percolation rate, mlnutea per inch Remarka I Ca. 3*4^ L (a HVft HVft A3 1.^ 5 r Percolation rate • ^.3 ninutea per inch. L-U t PERCOLATION TEST DATA SHEET Tttst hoU location S;i C. D, \Hole nunber 6 Data taat hola waa praparad_ _ _ Diaaatar of hole, (o Inches. 8^1_ _ _» Depth of hole bottom. ■g.C) Inches. Soil data from test hole: Depth, Inches r> Soil texture r© r)cvCK ?>CC>v^O<N-^ - -a— ] Scv.-xcV^l^ \<^O.VV Hethod of scratchlna sidewall -Krs\rt-{ Depth of pea-sixed gravel in bottom of hole. Date and hour of initial water filling _ _ _ Depth of initial water filling, _ A Inches. Co 0*7 inches above hole bottom. Method used to maintain at least 12 inches of water depth in hole for at least 4 hours i iVofN.'NdLXiuc- Percolation —h:^szSd(date) during teat,_ _ _ _jo test readings made by ova _ on I starting at ca*.0\ * Maximum water depth above hoi inches. f . Tims Tims Interval• Minutes Measurement, inches Drop in water level, inches Percolation rate, minutes per inch Remarks # .D\ C. M yi^ ■).! i Percolation rate «minutes per inch. i % I T. k i sir. PEKCOLATIOII TEST DATA SHEET \ Hole number Cs»*Teet hole location ^ \ Date teat hole vaa prepared ^Depth of hole bottom, inches. Diameter of hole, Co inchea. Soil data from teat hole: Depth, inchea O S" Soil texture N =16.'-3o’e \csCk ■Tt rv-v Method of acratchin* aidevall _Vs<N.C-e.. *3^inches.Depth of pea-sized gravel in bottom of hole. Date* and hour of initial water filling_ _ _M*oOp..>^. Depth of initial water filling, _ _ _ inches above hole bottom. Method used to maintain at least 12 inches of water depth in hole for at least ^ 4 hours QLjjALt^<\-\a^c- ; ^ Percolation test readings suide by on 4?0(e>-feM starting at - Maximue water depth above hole (dateT^ • .£ during test, C=>inchea. Time Tine Interval, Minutea Measurement, inches Drop in water level, inchea Percolation rate, minutes per inch Remarks O-.oa L L 6 Cc3 m:*! U.Q H‘7.1(0 - Percolation rate •minutes per inch. 4 1C* , , r rTTw < ff i i ' I i r r I i } j Lom of Soil Borinaa L-13 • Location or Project SAc ^ ^ &\pcV^ \ . Borlnso Mide by &»^ScVn\Cvn><cS Dote ^ * ^S* SH CUooificoClon Syseoa: AASHO_____; USDA-SCS_____; Unified . ^Zl—; other----------- Auftev ueed (check two)s Hend v/» or Power __ ? Flight -t or Bucket other Depth* in feet : oiT^ Boring nunber I Surface elevation 1 — .2 — 3 — 4 — 5 — . 6 — 7 — d — 9 — 10 — o-to“ ___ __ OCov.O<^ \oC^V>-^ ___________Mb'- r&'________ Voa x>“*\ ^ C*-'<vcL. VrcvcfS ^CovO»"^ \ocw«N'\*^ ‘r>cvr\<L^ 2>fOvO<-'s <Nrxe6w‘.».v*N'«v Sc».r\«L. ______________ O^t^c 10«»0'A t »»'VC Suo.<V. / 'H** *____ Wx-C C'\»r»€_ ^Os.*r\A,.^ End of boring at S'U _ _ feet. Standing water tablet Preaent at_ _ _ _feet of depth. _ _ _ _ _ _ houra after boring. Wot preaent In boring hole Mottled soil: Observed at feet of depth. Not’present in boring hole Z' Depth, In feet 0 Boring nusdier A Surface elevation 10 — SifocofN '^CvrvcV-^ Vcuts" _____________PMO-............................... C5 ^ C*C\C^«^ Vo €•> »>■>% ______ ______VO - \’^i_ ............................ t.‘-N V O CK C' .»\ '\ Cc\ C C of ^ ra--i‘lA' il>C 0».0 V OO.VN>, ex c*v. '.-V <V\< t' a End of boring at feet. Standing water table: Present at_ _ _ _feet of depth. hours after boring. Not present In boring hole J_. Mottled soil: Observed at feet nf depth. ^Tot present in boring hole / J 'x # k 1 :i I h '* i' i..r ' 1 1 i 9 I S' [ r LoB^ofSoll Borinss Location or Project Sl-Cc ^. feVocVs V__________ L-13 Borings node by S-? ^.S>cy>f<v^CS Data Claaalflcatlon Systan: AASHO_ _ _; USDA-SCS_ _ _; Unified / ; other _ Auger used (check two) t Hand Y. or Power_ _; Plight_ _, or Bucket other Depth• Boring nunber in feet 0 A Surface elevation i • . I — .2 — e 3 — 4 — 5 — 6 — 7 — ®’T 9 ... i; •10 — Vo^SO*\V OoCV^ *^CJvrs<L»V \oC' _ _ _ _ O - \0'*_ _ _ _ _ _ _ _ ><»s SCOv>5«'X ^CXCsCS-^ \oCA.»^«•'^ VO‘- \*&" _ _ _ _ S>rOvOrN \oo».»v-N "VlO C-Vcw^ Vofr re>"- Q'©* i^C\OCpw<v\0^ ^COkt-V^ VcU'rcs.^ f;<vcS^*vL ^ CovjJos _________________________________ J End of boring at fast. Standing water table: Present at______feet of depth. _ _ _ _ _ _ hours after boring. Hot present In boring hole >/" . Mbttled soil: Observed at GVa. feet of depth. Mot present in boring hole _ _ _ _ Depth, in feet 0 Boring nuiriter M Surface elevation 5 — \O^SO*' OC‘< K Si.<'Ov<ii^ oOk<'CU\ Vo<.*rv^ ___________o - _____ AP"- \'^__ _____ &ro^r->v Voo-^-N >-*'1'T'rcv<<^> oQ S.a^.tL na--_vu: ^CCkO.-^ VoCv<r.*\v.V S>C».\-sc!L- ____3 V-life" 10 — cN-NCi:L;a.%^-x Sev.-sd^ ___________________________ tf feet.End of boring at 8^/a Standing water table: Present at _ _ _feet of depth. _ _ _ _ _ _ hours after boring. Not present In boring hole Mottled soil Observed at __ _ feet of depth. Not present in boring hole >/ # 4 ■f r i*/' t. f r i- f: r L^Ation or Frolect "S'Ac 51. ?AocK \ • ^ I L-11 « • Borings node by ^- P .\ip. S,\€v»<,-> v^.ScU covtfS Dots c_^- 0*^ -9>M CUsslficBelon Sysesnt AASHO_____; USDA-SCS_____; Unlfisd >j^ ; other _ Augsr used (chock two) i Hsnd v/. or Power_ _; Flight_ _, or Bucket other DApth. lA foot 0.* • Boring nunbor Surfscs slsvstlon 1 -■ 1 — ‘•*- j — • # h — 5 — 6 — 7 — a — 9 — 10 — To|>^0»\ Ocn^ ^ VOfc O - VO’* BrovOi'^\C>C*.w-^ \or-^'U' evg^ ^VxV. W Voc^vw*J^ ______________________________ rii’ ___________■^V4jLB7i____ „ i I End of boring at S13>. feet. Standing water table: Preaent at_ _ _ _ feet of depth* hours after boring. Net preaent In.boring hole J Mottled soil: Observed at feet of depth. Not preaent in boring hole je. Depth* In feet 0 Boring nuodter Cs? Surface elevation 10 — ToPSOiV Oc»<X tir.....^ 0>rOo^.'>w Voc..‘» s _ « €jCC».0(-N VoC'V^v^ f‘.■•s€. Sf-.-Nll. ...J’lo-- YM- l»\c. £><■ OkA>«^ C" ‘OkC- 'jCk*'v,ciL»_ __________H’M *. feJa' .. ......... e 3 •i* # End of boring at feet. Standing water table: Present at _ _ _ feet of depth* hours after boring. Not present In boring hole Mottled soil Observed at feet of depth. Not present in boring hole i i t- f I I I M ^ N ;I __________• ____.___1-.L-—hi ru J2_______^ -------------------------------h-r:• r 111.44- : : : *B3 >: I :• S I •! / •8 /.<» 'i:v>s ••w> ytsI)¥7 wkf •n •^n\ &9 0•i •n\Vi i rs:I 4 *Ui R:r. : I VnOkX^ I i X5CV. i?''-aisr5^0"^v5: <»>‘Y W^\-li ■ ^1 - IpsiS -t- " COk» a»a• VC a ^i■^n 3-ui Z'r.I C^. cO .'k • \••/ *• ••i 0:If .**1•V ta Oav« V V\ *5•,n"ItU«tc; s X A ‘ ^I ;-?Ii3 -*•>•9.s (! •a vJH‘3* r i