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HomeMy WebLinkAbout1994-08-02 Site Evaluation ReportDevelopment Engineering, P.A. 9051 NrV Loud DO" Eden Prakia, MN 55347 (612) 942-9262 Fax: (612) 941-3030 .. M .IMS C-TGan1@s At' n: Darrel 80 WEST 78TH STREET. # 1= Chanhassen MN 55j,;;_2.7 Re: SITc EVALUATION Promosed Onslte Wpstewater Treatment Svsterr- Lot 1 block 1 Second Additior Hennepin Co r:Ur-_n_?. Mi;zr,esota Pro ie c t '3.1-408 As Der vour recuesc and authorizati:-n, we h_ cammer-ced a rite Eva: lati:-n at the above referenced The ouro_-se was to assess suitability' f:-r onsite treatment of wastewater. Please ac- cent this letter and attachments as our ree_-rt. spat iect to aDoroval by City, officials. We understand that a site evaluation was Derformed in 1984. It sh-_-wed a c:-mbinati-_+- :of sand and clay loam d_v:osit=- H:-wever, the residence now D----oosed is sited in the c•rioinally designated treat- ment aree-. Also. a visual e-arrination c,f the site etildenced same sionificent alterati-gin Evidently. the sand area=_ were mined. Ieavinp the houseDrd area and areas tc, the south and east a= dis- turbed and unsuitable for onsite wastewater treatment under normal circumstances. There als:- has been s:-me attemDc to construct wild- life Ponds in the s:--_ttheast area of the lot. There is a wetland in the northeast corner of the 1c-t. I visually e•.amined the entire area. notin-i vir.inities of steeD slopes. lower elevatir-ns. etc. I Derformed several e-elimir-ary hand auapr borinas. most :-t them not legged. mentally noting wriether or n:-t the area seemed to have been disturoed and. 14 not. n-,Lino deotri to mettle^_ soil. Tni.s was in an atterict tc. is_oiate areas that w---_rid aDDear to mCQt any E1r:-n_- rep-.cirements fDr onsite treatment QT wastewater. it becam--:� oar-Darent that you w:-tild need m:-und systems. I sis - DerT-_-rmed C-reliminary Der cc i_.t i:-n teats. again n_-,t loaged or rec-::'cim^_, t:- f-!t th-er verify site p"aF^tial Prior tc- ftlli te=_tino. I ultlm6taly settlCQ upr-r' tw- 51te� c--.i-tr. c_,-_-th.F.25t ,_,t the pri'poSE'CI residence area. Tt-ese a►e in what seems to be ne+t-.Irai tc-rra,n, on a low ridge spp2rated by a s1--a11 _-w saddleback. I staked out rockbeds fc-r a primary and sec---nd,,Yv treatment areas. The sec---ndery area, duP to vari_-us constraints, Must be a do -lisle rockbed, which is al- • •JMS Companies 2 A,_i e,_, s t 1994 Page lowed a.ccornina tc, !"1! nssote. N,,_Iler Note that 1 Co!!la not isolate 15QQ , sg,.kare feet in eacri area. aue to varlouE ctn_traints Instead. I delineatea area= as neces=-ary t_r treatment and sut) tltuted due extra diligence ar,a ettort. The rock;Ded outer limits were mar!-eclf in the tiele w_th olein lath. In each treatment are._ I performed five wr mare 00rinas and estab- lished down three car irc�re Derco,l.eti-_n test '-, 1kPs. bore �"_ le and Dercolation test hale 1_-cations were marked with flauac-'c+ lath and labeled. Refer tc, the attached s4:E'tc1-, for tc-oograehic date, ►oca- ti-:ins of Droposed rockbed�E. borina=_ and Dercolation test h-Dles. and other information. Nate that locations are alven schematically only; to provide dimensions at each significant Doint w,=�!!ld un- necessarily clutter the mac. Exact location of each point is on file with us shic-uld anyone wish to verifv locatic-ns. Ground si.,rface elevation at the hr,rings and test holes and at i-ey topoaraDhic points were determined and referenced tr, various tem- porary bench as established by vour land 5lrvev,:r. Elevations are shown on bore loos. percolation test sheets and on the site sketcri (restricted as necessary for clarity aaain!. Attached are lone .,f the b_,r_nas. Thev were accomelisshed by hand auaer methods for greatest accuracy. The borinas indicate of toosoil and predominantly a loam or clay lc-e.rr, basal soil. How- ever. there are s_-me a.-secstions. mainly in fincino sandy loams of vario!!s Dlasticities and one small deoo-sit of loarr,v sand. Gravel contents are none t- trace. S:lil m_-i=ture contents were normal to sliar,tly low. All borinas were terminated at less than 8' as re- stricting lavers were encountered in eacr, case. Refer to the borina loas for a more detailed descriDtion (ancludina color. moisture level. aravel contents. firmness. etc) of sails encountered. Standina water not observed in any bore hole after at least one day's time of observation. However, and more importantly, mottling of soil was encountered commencing batween 2' and 4' of deoth in all but one boring. Mottlina is a certain banding or steinina of soils that occurs when soils are Deriodlcally saturated. It is us- ually taken as evidence of a pact. P^d thus future, fluctuation c-f aquifer Groundwater or a "zone of s ,al sat,_!r?ti Orl" that 4cc!Vrs when water enters from surface lev -1 soon creates _ a perched condition. The latter is usually i -snowmelt cc�nditicnn. The sia_nifica.nce of mc.ttlina is teat o of treatment systems mint be separate from maximum anticipates eter. perched or otherwise, by at least three feet. In one borina (1t11 ), -:.rtset mottlinu wrs nc,ted at 1. �J' of deutr,. The City of Qr,:inc. usually desired n,o-ttlina t_. be at 2' or lc.wer for o,n- rite treatment o,f wastewater. kiorina 11. Derformed closer to the rorhbed. sho-wed mo,ttlir,o at :*'. 1t 1_- recon,mt-nded that this varia- tJ,:,n be Wdived d5 the lilaher IuC i tlEr,j Ei�Jl CC! h tE'd ]f, U•,.rr�P!1 upsloDF dii-e are&. when_- Dz­t1&11V tre2tek.1 wastewater tt,r_­r-iically ooE'a not flow. JMS Companies 2 August 1994 Paqe 3 based upon the above results, the areas were deemed suitable for testing for percolation rates at such depths that are representa- tive of contact soils. A total of seven (7) test holes 13" below surface level were prepared in the proposed absorpticin areas. This depth was chc-sen a= this is Ltsktal practice for mound systemE. Soils encountered are essent..ially consistent with sail baring results. Asthe initial fill. _,f 122" of water did not drain out of the per- colation test holes in less than 1ti minutes, the 12" of water was maintained in the test hole for f0Ur hours. The tests were per- formed the next day, in accordance with Minnesc-ta Rules Chapter 7080. Results of the tests are as tollows: Test Hole No Percolation Rate. min/in Primary Area (land slope = 4.4-4.87) 1 3.() ZI 14.3 5 21.0 Average 14.7 Secgyndary Area 3 4 6 7 Average (land slope = 5.4-6.25X ) 65 3 21 1: 422. J Transcribed forms of the percolation tests sh-,wing reccerdings and other data are enclosed. Original data sheets are on file with us, should anyone wish to view them. These rates, while showing some variation, average in a manner that, considerinq landslope, dows not preclude treatment. The above data together with some initial .judgments as to con- struction economics indicate that the sites are suitable to support onsite treatment of wastewater. You will need mound systems (a double rockbed system .n the seconr+ary site). The systems must be located in the areas tested. The systems must be located at separation distances noted in MR Ch 7080 (tabulation attached). On the basis of the above results, topographic data, requirements of the State r_.f Minnes,:.ta and the City of Orono and other informa- tion, I have sE:etched a detailed system design and attached it to this report. A Type I residence with garbage disposal has been as- sumed for the most conservative des�.ictn. These rest,l is should riot be considered final, and no s�lbstantial investments hould be marie In the propNrt.y, unle« th I rep -rt and attached design are reviewed and appr-_0veLI by City officials. _ Z. JMS Companies 2 AUgLtst 1'j'34 Paoe 4 The only additional advisory iG that THE TREATMENT SYSTEM AREAS BE IMMEDIATELY OFF-LIMITS TO TRAVEL by foot or vehicles, and THE AREA SHOULD BE BARRIEREU TO PREVENT THIS TRAFFIC. We have left the bore holes and most percolation test holes open. If the sites are ultimately not used and could be subject to foot traffic, they should be back filled. If anyone has anv questions on this, or if I can explain any aspect of this test and design, they should not hesitate to contact me at their convenience. I hereby certify that I am certified to perform site evaluations and to design systems k.,nder the provisions of MR Ch 709O. I further certify that c-ur firm is licensed to perform site evalua- tions and to design systems in the City of Or.:,n ,. Respectfully submitted, DEVELOPMENT ENGINEERING, PA Patrick J Hines, PE Registration Nc. 120BE ISTS Cert No 1503 pH enclosures . -- 334.45 ORONO VIEW LAN REVIEW • lr,sPF�aro+r •SATE _ PERMIT NO. -:4S SUBMITTED � ,*�-APPRQ% -41TH CORRECTIONS AS NOT J APPROVEt' n NOl APPRt)Vi.r) - CORRECT & RESU01:11T these commentr 'sir Your lrAormatlo+t. All i aor* 9111all t de all appNoeble b&*%?* to !ut, oompllance with wRomems incow"" P :ems not RifK'1f11 Y nwtc j �•, thh. ratAM . '. OFF THIS PLAN SET ON SITE AI ALL TIM. 2 C { 5 Of qp -- 3150.oc -: 1 -- 3150.oc -: 1 ...... L�wr��c�nn��a, r.m /-rtie s 47y-03e 9051 FLYING CLOUD DRIVE EDEN PRAIRIE, MN 55347 Lofts of Soil BorlMe Location or Project t<XwiO4 Str•"d AJW:, 14eP72U ., ('� fpr&A& A'Mh TWS 015 0 3 9y Borings made' by Patrick J Hines PE 012086 Date ZZ Juiu Classification System: AASHO ; USD&1 SCS X Unified ; other Auger used (check two): Hand,-, or Power _; Plight _, or Bucket K ; other 3' SGS Depth, Boring number Depth, Boring number y in feet Surface elevation g — feet in Surface elevation 0 G•b LO�n7 rN i- •J ..�. -s �� ...i,f it 114w/ Ott M Z .,}: �� or 4�•^'�� •o �'• 3 £'.,d el ice-• ;.�., _ .v. R� �.,;�, ! �11= C 5- 6 — 7— e— 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 .2 feet of depth. (4­4) Not present in boring hole Observations and comments: gaire. IIak r /e P o frn O .1 arJf le49-0.I IJ ,� `•• �G•,1P �i n,a,i t �aGrcl�S nnn, nv� r 2 �� �...7 � /lt � • ate,.-� Sr�� it Mf� r,'� �irJ ��J �C. ,•prrn.•f 4 3 �, nr So, •� +, S, ,? 05,4 L Li Qrv.. t4/t(d Fi- �v Loon•, 5 — 6 — 7 -- K:n End of boring at E feet. Standings voter table: Present at feet of depth, hours after boring. Not present in boring hole A - Mottled soil: Observed at feet of depth. Not present in boring hole Observations and 7omwents: pk;'r d 9� osa 9051 FLYING CLOUD DRIVE _ EDEN PRAIRIE, MN 55347 LoRs of Soil Borings Location or Project Laf 8/09k I 'r+rumv- ,srra474 0"001 144 ACO-i Borings made. by Patrick J Hines PE 012086 Date 2 Z J�IM 1995/ Classification System: AASAD ; USDA-SCS X ; Unified ; other Auger used (check two): Rand ,L, or Power _; Flight _, or Bucket k ; other 3' US Depth, Boring number In Surface elevation 9S5 feet 0 Low" i°' rn4. San ,ganr !-clL LA./oc,- s•+ •wl" M+,r� /Got% 1 p.7 /f �o.� Loom rW wrf OWR44 - irewn l-w/ Icc X-" .**Wd-7 Dew* ,7svIN Pt -t► I«#4'" ., C ri a � L...� �S.o 4 Lf 111 - bro•• /rra/si � Y Mr�'lr f I M�I�� "t�/•,� ry,r��f� Wc� /00- I w(�4 f• L A� .I er-'n1 - Aro ♦ ��Sv End of boring at �_ feet. Standing water table: t4esent at feet of depth, hours after boring. Not present in boring hole �. Mottled soil: Observed at s rr_ feet of depth. Not present in boring hole Observations and comments: gore. %la/G5 /e % o/en Depth, Boring number to in Surface elevation 9510.9 feet 0 /a 4OO.►7 Q o.Iic lack -/S... P'00* O.b /r�•.ld- /r ve .n�v f R�-b,..,..M Ott s+. ter - r 1 2 2v spe.lc/y ,.,orY,M1 3 ?� B.�Wn id �.tBlowh mo#/c1 3 y CL rc A; sj 4 — V End of boring at 3 V feet. Standing water table: Present at feet of depth, hours after boring. Not present in boring hole K/ Mottled soil: Observed at Z `� feet of depth. (spars&) Not present in boring hole Observations and comments: r.P% 9051 FLYING CLOUD DRIVE eq�! EOEN PRAIRIE, MN SS347 Logo of Soil Boring Location or Project Lao / 8/ock I 7�X,",o4 Si.••,d iQdi�. �c,,,•p;, ra��1 j�I�MK Borings made by Patrick J Hines PE *12086 Date ZZ Classification System: AASHO ; USDA-SCS X ; Unified ; other Auger used (check two): Eland X-. or Power _; Plight _, or Bucket W ; other 3" SCS Depth. Boring number 7 in Surface elevation 7,59. y feet C— 1- 1..a„.., son e W �.f 5 ./fad i La—z 2 ..%A0., S+ Ptas�•c, Bro �• to»d is T�n,e,�.�.aiFin�✓ 3 — m F .... I. 3� speesa\� W^%.d �4.y ��.w� io mewh.d liI�.� y�FirNr SP.e 4 • n, �fLX Y �i1 .. M ��_ 6 — 7 — 8— End of boring at A feet. Standing water table: Present at feet of depth, hours after boring. Not present in boring hole �. Mottled soil: Observed at 3.1 feet of depth. Not present in boring hole Observations and coaments: 3arc Av/G /e P o/en Depth, Boring number in Surface elevation feet 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 Observations and comments: C ..,....�� ....%i, f .r% / r�l v �Jy-os� 9051 FLYING CLOUD DRIVE EDEN PRAIRIE, MN 55347 Lots of Soil Borinrts Location or Project Lod 13/auk, I )rwwva� St(o,j Ad1h, /�1i��.,•P�.. �' /0,,�^��1'�f,"� Borings made- by Patrick J Hines PE #12026 Date Z,; J"!24 '9y Classification System: AASHO USDA-SCS X Unified ; other Auger used (check two): Hand X-, or Power _; Flight or Bucket K ; other 3" SCS Depth, Boring number 8 Depth, Boring number Cr in feet Surface elevation g `• feet in Surface elevation 95 to,I 0 O.G 1— 2— Jl 1W - M / f Jo^ye♦ J ,.1,. «., �c., r 4w.4 . S. ,s J.,.C_Aa-r/ 4 — - S G �- 6 — 7- 8— End of boring at S 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 Observations and comments: gore. /l/e P cen v., OL 4lVa� Pe �, CC� J V End of boring at .? feet. Standing voter table: Present at feet of depth, hours after boring. Not present in boring hole____. Mottled soil: Observed at 2, Z feet of depth.����J Not present in boring hole Observations and comments: 90S1 FLYING CLOUD DRIVE � rq�je-OJd EDEN PRAIRIE, MN 5S347 Lots of Soil Borinits Location or Project (041 el"k sito- l�('nnipi.. � J /QYf/nii /VI'Na1 Borings made by Patrick J Hines IL Pb #15UJ #12086B6 Date 2 Z Classification System: AASHO ; USDA-SCS X Unified other Auger used (check two): Hand �, or Power _; !light _, or Bucket k ; other 3scs Depth, Boring number /d Depth, Boring number /1 in feet Surface elevation 4 in feet Surface elevation 0 O. d W sr, •..Ar�..i ...� .�, �.ios�t w ` 1 ~4)n+Il1� SIFT 04Tft Y.i. �� r •..y — /J s a�.aia � 4 — J C S — 6 — r 7 — 8— End of boring at -.3 feet. Standing water table: Present at feet of depth, hours after boring. Not present in boring hole �. Mottled soil: Observed at Z, I feet of depth�Sr-r) Not present in boring hole Observations and comments: bare. Aao /e 44 o/eh AKA4\..\0 aria DJL 7717�-- 1 — 10.1 L«•..., (�„e.r..� w,r/ir�� SW" 4r .r.or 4 — 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 Observations and comments: ..... �r��arr�eenn�,�, r.rL f rtie d 476/-036 9051 FLYING CLOUD DRIVE EOEN PRAIRIE, MN SSU7 Logs of Soil Borings OwnLocation or Project Lai x~4 S-repJ 14 A' n Tb W15UJ a s Borings made by Patrick J Hines PE #12086 Date Classification System: AASHO ; USDA-SCS X ; Unified other Auger used (check two): Hand X-, or Power _; Plight _, or Bucket k ; other J, SCS Depth, Boring number 1 Z Depth, Boring number 1 in feet Surface elevation ck5 q-Z feet in Surface elevation S9.1 0 2 L -f boring at -3 feet. `_ta:' water table: Present feet of depth, ,. ,rs after boring. \ Not present in t -ing hole Mottled soil: ' Observed at ZJ feet of depth. vot present in boring hole Observations and comments: Safe. ulL5 /e 44 o/fln IO— 'l, I 1 — 1.Y 2 — 3 — 4 — S — 6 — 7 8 — I Lem,-- A' \U © ar.:cP A,'c TLP FI K � �:w .A.r��, ��w•Q �D n.e�a�� �iw.. /Yi�1� i Q�r•��i•L C��� Lew+^ End of boring at -3 feet. Standing water table: Present at feet of depth, hours after boring. Not present in boring hole x- Mottled aoil: Observed at Z. feet of depth. Not present in boring hole Observations and comments: Chart - GUIDE FOR USDA SOIL TEXTURAL CLASSIFICATION 100e Using Materials Less Than 2.0 men in Sint If Approx • �O W% or mrre of the soil 90 �•�� material is lamer than • ; 2 0 mm the texture :', •. �;� term includes a """ • �. .. /. modifier Example :•:. '• ' h gravelly sandy loam �.�� • . '.... I : • ^ • :• :,. [ Isy . - ... ... .:..:.. 60 V /l ...\ .• 44 i. 50 sandy :.::: clay .. .:� is. - 40 35� .• •Silty clay, Clay •:ti'.: A•flay loam•. ::. "bam ^�. O :. Sandy clay loam ~•. X., 20 - :•.LS': .loam :• ..... •:. = • - : ;' sell bam ::. sandy loam 10 • •'�7 loamy �. sand sand Soil percent sand `rt 3s Particle Name Particle Size Range MT Fine Gravel Very Coarse Sand Coarse Sand Mediun Sand Fine Sand Very Fire Sand Silt C1a•, Z.0 - i" 1.0 - 2.0 C.5 - 1.0 0.25 - 0.5 0.10 - 0.:5 G.05 - 0.1C V.002 - 0.05 f.-xr thy-^ O.n(" N DEVELOPMENT ENGINEERING, P.A. 9051 FLYING CLOUD DRIVE �U . EDEN PRAIRIE, MN 55347 PERCOLATION TEST DATA SHEET Percolation test readings made tit. Patrick Hine-- tt !F0' o„ 23 JKI,,'QY aartinF at �(o ' z Z tits ! Lef / Q/e«/c I uovd cw.'L /�E1 n, '•"' Test hole location-14 nn eels a (0--vuT� '»M . Hok numt•er_1_, Date hole was prepare 2t Jy 14 ' 9y Depth of hole bottom 1.3 inches. Diameter of hole 5 inches F 1 E v 1 Soil data from test hole Depth. inches Sit M NtJ of scratching sidcHal Soil texture 4. i • I Depth of ir. bottom of hok: � inches A-+ Date and hour of initial water filling ZZ J y Depth of initial aster fillip, 1 Z • 1 mohrs at+,,sc hula h,muni Method used to maini;iin at least 12 inches of water depth in Mile for at ka.t k.A.11 S . 111dvmum water depth ahosc hole Knio n during Icst P inche, Time Percolation Timc inten al. Measurenwrit Drop in water rate. Ken�a:l s hrs minutes imhcs Ic%cf. inches minuic, per inch rill ss Y. -75 as o s 7 2- _ � --• L 1 L I I ; �•• I'cr,��l.iti��n r.:�. - �,� _ nur..�'c• (4r in.h DEVELOPMENT ENGINEERINI 9051 FLYING CLOUD DRIVE •'EDEN PRAIRIE, MN SS347 P"o-e d -03 PERCOLATION TEST DATA SHEET Percolation test readings made bN Patric': Hines tt ^. = 0^ r,rr 23 J�►ly'QV starving at 10" hrs Le,f wtvCL tcw•4. AEl'n, • Test hole ItwaticCa, �Osw.l� AAi.+r Hok number z Date hole eras prepare ZZ Jr, 9N Depth of hole bottom / 3 inches, Diameter of hole 5 inches F Z E 955•' Soil data from test hole: Depth, inches Soil texture 0—! t..QOYr 1 1�1✓1 OYA C+r 11.\QC�t w� �fDO" LQ]it ��7 �;i �� `,'7 l — i 3 ^ Leo w , o t• Lv ,. V * r1--� r�� Ns `/ Oct -T � fir/ v l r^ COS Mcthml of scratching sldcNJll nAr /S - - Dtrh of grasel in bottom of hole 2 inches l9•So � Datr and hour of initial water ftllmr Z2 ' Depth of initial water fillin 12 inches Ane hole Kwom Mcih,id used it, maintain at least 12 inches of A ater depth in hole for at least 3 hours A&M wd l Maximum water depth abosc hole Nittom during test LL -----imhe,' Ttmc hrs Time interval. minutes Me.,surement. inches Drop inflater kmel. inches pelcolatlon rate. i Remark -- minute,. pe► inch L•'2y I ri ] 1 ••S7 745 1sir} �g:oq i! G.L1 lay 11.5 5. % I0,85 ILI, t t,CL G, S Z I'er,oL�ti�m t,a: - � _ nnr�.�'i • �'r ui.h DEVELOPMENT ENGINEERING, 9051 FLYING CLOUD DRIVE ':FDEN PRAIRIE, MN 55U7 R'Oji d 9+/-v3 PERCOLATION TEST DATA SHEET Percolation test readings made h% Patric!, Hine-, tt , _ 0 ^ on 23 J,.( 'qq startingat ��i . Zi► lire / Lr>F / Qh�K 1 �irirwr�d cw•tL del n Test hide location A6 na 10A Cu ey.rrwti) '»v% . Hole number _�, Date hole was prep,,re ;t Ji4' 94 Depth of hole bottom- inches. Diameter of hole S inches F 1 c v Soil data from test hole: Depth. inches Soil texture - I �Qy �►�OQy RS�11/ S, `1�w � •i�. '✓� iwOr C ^It♦w - 5r�_ n. � Method of scratching sidcwall Depth of gras el in bottom of hol.•_ 2 inches /9.5 L M.r Daic and hour of initial water filling 2= •7 � y Depth of initial Maicr fi11,nL 1Z inc hc% An c hide f+uttom Method used to maintain at least 12 inches of water depth in hole for at least 4 hours_ /)Aani.e l IQ�� GIs Matimum water depth ahusc hole Notion) during test a in:he•' Time lies Time intcnal. minutes Mcawrement. inches Drop to water lesel. inches Peicolatuon rate. ! KenmrAs minuic%M inch � / 7.�0� — Ric,•, / 7,'S8 S40.t ti: sti o 19 , 7,9 `>I, 9.s S,o G a o 'L9s 0 y I': r.��l.iu:m r.�t; - tis_ _ nnr.�.rc• h•r in,h DEVELOPMENT ENG{NEERING, P.A. e• "d Q�-o38 90S1 FLYING CLOUD DRIVE �G EDEN PRAIRIE, MN SS347 PERCOLATION TEST DATA SHEET Percolation test readings made by Pa tr i c'c Hines # +. = 07 to 23 Ju'%%'gq starting at )L - 9 hr�, Test hale Imation Man rein C.+ (tt'J��y.l �� NN , Hole numhcrprepared2j f4 9y �. Date hole was Ikpth t►f Ix+lc Nitwit, / -3 inchcs. Diatttcter of hick S inatcs F I t v Soil data from test hole: Depth, inches Soil texture l , _ ()r-j0'.4'- .3 '� � ^ -+lei :H _�,.� c' �� �-• -• •• � -� '� i� � ... /VW �lljs�v�.l, � '��it�rr-� Tnvil rvrl<S Method of scratching sidcu all /ial' /S Ili p:h of gras el rr b►elom of hole 2 inches Date and hour of initial water filling Z Z s7 4 Depth of initial water filling Z inches at+►Qsc hole fxwunt Mcth,%J used to maintmn at least I: inches of water depth in ht►le for at least 4 hours—_ man -fi l Nfatimum water depth ahtne huac hottoln during Iesr ° inches' Ttn►e hrs Time inter al. minutes Sleasurcntertt. in,hcs Drop in water le%el.inches Perr►dati��n I rate. i Remarla minute%per inch o / 3/ 37 1 0 99 34 .3'Z' n 26 el 34 3 1 5-a !'ir.rLtlan tat; —3ti _ _ nur:r;• Ivr in%h r- JGV�LV: I.: L 9051 FLYING CLOUD DRIVE 'EDEN PRAIRIE. MN 55347 PERCOLATION TEST DATA SHEET Pcr:olanon test rcadtng% made hN air i c'r N i nts s ' = 07on /�a� .'� qV starting ar I4 ZS hits . Test hrle lcaati��n �-rT� (d_eyTT ��� M� Hole number__. Date hole was prepare ' `rw ' 4y DLp*h of hole trittom 13 inches. Dutnetcrof hole 5 inche. F 1 f v 15 $ Z Soi! data from test hoe:. Depth.inche. o- to 10 - /3 Soil texture 1 Mosr. d F.et•w., �\;li���re►c..�.t� `ra„ `q\aek/ ^I�..,� !o �a.._ �.�eQ•.N _ I,r� f J�W•� �'0 1 \ l0' � yd Wh w./ �♦ fjrrva� -�/Otc Sn, .:r� J�L� 74 hro. sy Q 1rJ i.. i/ we ., V Wih,+dof scratching sidcuall- AA, /j M rth of Fras c I in bottom of h. le 2 inches / S/ �"P Wic and hour of initial water filling 7 '. Depth of initial water filhn_ 12 in:hc• aKi%c hole Kittum lklc►h,%d used to maintain at Ica%t 1 _ tn:hc• of water depth in hole fix at least 3 hour. "„fi / "sA 111 Maximum wattrdepth abo%e hole Nittoin during tesa ° tn:he•' Tune hrs Time intcr.al. mtn0cs i i Wi%urenKni. i tn.hc. Dropinwater Ic%cl. inches Pcualahr�n rate. minutes per inch i Remark• i s.•� • � R.c.' 1 , 3. 20 03(A 1'►t.��!.�;i.n�t:t: _�-_ nm..•:•rru:.h r- d EVE' QPWz T E'}w'�ccn�N3, P.A. GMi FLYING CLOVC DRIVE , iLc EDEN PFWFKE. MN 55347 PERCOLATION TEST DATA SHEET metric*: Pines x'=0: „n °•'� Starting at Pcrrola.t.+r. tcl-t reading. male !+} w �..— 4 V bof / ' r Tea hole loca:,or tit r ^T C, (e)'°•,Holc miter Date hole wa• prepared — Lk P*h of hole botwR, 13 inches. Diamter of holy 5 tnchc% t= 1 a v Soil data from tc.t tk ie: Dcp:h.inche• 0-to 1 U - 'j N C Tom; s. •*r� .,/ oat le-v •Ao- 1v n e L... — IT Soil texture Method tit %crx, hinr %tdcw A Ik; th of cra%cl ir.1+,viorn o` h,d; tit: c• A -0 Urtc an..' hour of mural water filling 7 / 241d . 4 Depth of initial water filhnr 12 in. he• ah+%c hole Kittvm Aletbtd u•:d tat maintain at least 1: imhc%of water depth to hok for at ka•t s hou-• Ahan.t J R-A+11S A1�ttmurt w lice depth atx+� a hole la►tt.+m during tc�t IV inchr•' Time I hrs Time I intcnz!. tnm,::e. Mcr•urement. tn.he. Dropinwater k.el. tnche% Penolat►on rate. minute. per inch Ren:arl� Liz �3. l i AVELOPMENT ENGINEERING, P.A. j i(�ct� 9y-o�19 W51 FLYING CLOUD DRIVE EDEN PRAIRIE, MN SS347 PERCOLATION TEST DATA SHEET Percolation test reading+made h% Petrie: Hines *'=D? 1 A, qy dartingsI /y" 27 hro ! 7 Test hole location h6 n e 4din Q 60+r", l .61 ..6 Holenumber Date hole %%&% prepares J% l ,9y Depth of hole bottoms m -1 inches. Diameter of t 5 inches F.1 L v 95 7 y Soil data from test hole: Depth. inches o- 9-13 Nlohtd of scratching sldcuall nrtI' /I Soil texture Depth of grr+; I ir. bottom of hole 2 :ndtes 1y;oaA4.0 Datc and hour of initial Hater fiIGn • Depth of initial %titer filling Z in: hcs aho%�c hilt Kitnont Alcthtd used to maintain at least 1' inches of water depth in hole for at least 4 hours Matimum Hater depth ahusc hoole h.nt.nn during t �° inches' Ttmc lies Time I interval. �1.asurrntent. minutes I Inches Drop in,&ater level. inches Pelcolatlim rate. minute+per inch Remaths 1 'ill 1 13 t, eo "0 Zo 15.3 . 18 2,53 \,(A Z, � L os1+11 -- J1-- 14, a C� ---;sr zto k.10 JQ.r — ;S2 -...-._.w_._� �_— nttt.:r,. (,%'I Ifi.h P4, Location of Soil Treatment System Min. Distance Item Feet Water supplywell , less than 50' deep and not encountering 10 of impervious material 100 Anywater supply well, or buried water suction !pipe 50 Streams or other bodies of water (Shore l a n d Management Act.) 50, 75, l50 Building 20 Property lines or buried pipe distributing water under pressure 10 Trees: Where disposal trenches are constructed within t-O of trees 6 or largerin diameter, or dense shrubbery, i or where t can reasormbiy be anticipated that such ve etation will be present during the expecte life of system, at least 12 of filter material shall be placed beneath the distribution ,pipe. (7080.0170, Sub p. 2. C. (8), page 5704) — LOCATION of SEPTIC TANK ITEM MINIMUM D I STANCE FT. PROPERTY LINES 10 BURIED PIPE DISTRIBUTING 10 WATER UNDER PRESSURE BUILDINGS 10 WATER SUPPLY WELLS OR BURIED WATER SUCTION LINES 50 q{�•SS ;�A'Q "'yp Is �„ C fee job 1 oe' ' r r Seel eA�q A r,,/ JJ k � GENERAL NOTES: U - See attached sheets for 9fy design calculations, typical '� \ N `_ details, construction specifications, etc q 3 �,. OFF ��)Mt.V 8 w - Subject to applicable provisions of MR Ch Q .�4 7080, local ordinances, etc M ` P3 - Design may be modified by anyone properly licensed to do so � �P'1 / Subject to minor field modifications as necessary (eg, to adjust to terrain aber- CI) P rations. obstacles. etc) ) e. 09 l�ev+e k o- /4 rev- �3 R. Patrick J Hines, ISTS 01503 Date o CA 1. 0.7 *;!V#'10001 !� �t•� S W Op es --- /'r�P�+• Gvus4....1ar V� s./ �O Q-4 b 1 'VVit 411 -Sdb,.ekr u.f. ►, a (clos.r As , 0 DIKVEI.OPMM.NT M.N(;INP.CNINC, PA Civil. Ceotechnicsl i Soils lingineers 9051 Plying Cloud Dr, Palen Prairie KN 55347 rt:Att I" - 30' APPtw„to st u_w.wn •r I,II OA1t 2 Au '94 Patrick J Hines, PE 01208f (nt') 942-9.'n1 SYSTEM DESIGN Proposed Onsite Treatment of Wastewater Lot I Block 1 Foxwood Second Addition Client: JMS Homes oNPwI"u %vrr&a Chanhassen, Minnesota Prof 94-08 6 ;of > }� �U�k' Lek.. �� "`► 3kP r- •A �� Vt c F /Ouu ►y •N �ic..l...•• DVS �.........:�.r �wj (s%iti.t� v'►Er�t- 'I �� '� � � o•`,. � q�l•, r�9 0 r - .1 s • 1 • t,�� f �' 2 I `a, • .. Lp� / /�/ � �GXVaood S C H E M A T I C Se" �`/�".^ n•C�, f ft7.- RECTANGULAR SEWAGE TREP• `4T MOUND Block �G,twevd S�.na /T!�%1 MOUND DESIGN PROCEDURE (For Flows up to 1200 gpd) A. Sewage Flow Rate 9 p �njr-I See D-7 or I-3. 4, or 5. cr use metered value; Flow Rate - _ j�CO gpd B. Septic Tank Liquid Volume �k (see C-3 or C-5) J, gallons C. Soil Characteristics 1. Depth to restricting layer such as seasonally saturated soil, bedrock, coarse soil, etc.; _ 2•/ inches ( JAjti. f* j 2. Depth of ; 3' �' F percolation to /3 inches 3. Number of percolation test holes; holes 4. Ave. percolation rate; '/G-jo ov, / N. % mp i ro„ 5. 1.arndslope - 4�,4,' - _2 Pock Layer Dimensions 1. Multiply gpd by 0.83 to obtain required area of rock layer; 6W gpd x 0. 83 - 1/Qd' sq f t use 2. Select width of rock layer (10 feet or less) - /a feat 3. LAngth of rock layer - Area Width Sovsq ft = eft -__5:!rpf t E. Rock Volume 1. Multiply rock area by rock depth to get cubic feet of rock; L*10sq ft x /,0 ft - 6&Vcu ft 2. Divide cu ft by 27 cu ft/cu yd 3 to get cubic yards; /Y%- id 3. Multiply cubic yards by 1.4 to gel weight of rock in tons; IL--cu yds x 1.4 - 'tons F. Pressure Distribution System I. Select number of perforated laterals 3- 2. Select perforation spacing - J, O f t 3. Select perforated lateral length; Note if manifold is at end of rock laver, lateral length is rock layer length less half a perforation spacing. If manifold is in center of rock layer, lateral length is one-half rock layer length less half a perforation spacing. Perforated lateral length - NB t ft. 4. Divide lateral length by perfor- ation spacing to get number of perforations per lateral feet _Meet - /(p perf s Note: last perforation must be in end cap, (see page E-14) 5. Multiply perforations per lateral by number of laterals to get total number of perforations; -&—perf a/lat x 3 late �l8 6. Determine required flow rate by multiplying number of /,O' perforations by flow per V perforation (~page E-17) Ids A&perf s x d.7igpm/perf - 4 gpm 7. Select minisaa required. lateral diameter from table on Page E-17; enter table with perforation spacing3'perforation diameter, Yv'� and number of perforations per lateral. Select minimum diameter for perforated lateral Y1 inches G. Basal Vidth 1. Percolation rate in top 12 /� Inches of soil is / ,0 mpi jo 2. Select allowable soil loading r�►+y` rate frog table on page L-16; .(fflo,". d/ft2 MOUND DESIGN PROCPDURE (Continued) (For Flows up to 1200 gpd) G.3. Calculate basal width ratio by dividing rock laver loading rate of 1.20 Epd/ft2 by allowable soil loading rate; 1.20 gpd/f t2 = .LOgpd!f t2 = 2.0 Check this value on page E-16. 4. Multiply basal width ratio by rock layer width to get required basal width; ,Z,Qx /pft -10ft H. Downslope Dike Width I. If landslope is 3% or more, subtract rock laver wid h from basal width to obtain minimum downslope dike toe width Zft - /0 ft - /O ft 2. Calculate mound height at edge .4 of rock laver on dou-nalope side; a. Determine depth of clean sand R� fill at upslope edge of rock c�s17 layer: /,O feet C N£ Ct,� b. Multiply rock laver width by tl&*P C landslope to determine drop H in elevation; �✓/.4 x %=100- ft to. sI4S7v 3 c. Add drop in elevation to deptb of clean sand at upslope edge of rock layer to get depth of clean sand at downslope edge of rock layer. ft + ft - ft d. Add depth of clean sand at down - slope edge to depth of rock layer to depth of soil backfill to get mound height at downslope edge of rock layer; ft + /,Oft +/.Oft - 43ft E.2.f. Multiple dike multiplier by downslo,,c mound height to get downslope dike width; Aq ,!'x 3,q4,- Iy.9ft g. Compare the values of step A.l and step H.2.f. Select the greater of the two values as the downslope dike width; feet h. Calculate upslope dike width using upslope mound height and upslope dike multiplier 1ti f- page E-18; 1 s ft J2x11- 1. Tatal mound width is the sun of upslope dike width plus rock layer width plus downslope dike width; 15 ft + IU ft + IS ft - 4u ft 3. Tf 1--a,i= I o . e. Enter table on page E-18 with landslope and downslope dike ratio. Select dike multiplier of _may b • C,�a���, 3'� - 74 .%4.-3.1 as, basal width includes both N14 th upslope and downslope dime wid S. a. Ca ulate downslope diie width us in steps A.2.a. through H.2.f feet b. Calculs E upslope dike width using up ope mound height and dike cult liar from Page E-IS; x t - ft c. Add downslope Ike width to upslope dike w th to rock laver width to g t total sound width; ft + ft + t - ft d. Compare total mound dth to required basal width step G.4. If total sound wi h is greater than required be 1 width, use calculated dike widths. If required basal width is greater than total mound width, increase downslop .A.,- - I MANIFOLD LOCATED AT END OF PRESSURE DISTRIBUTION SYSTEM _�� MANIFOLD PIPE PIPE FROM ALTERNATE LA LOCATION OF PIPE FROM PUMP OF PE; e'/,. END PERFORATION OF A PERFORATED LATERAL Topsoil Loamy Sand Layer Clean Sand Layer �— Grass Cover ` a Layer of Geotextile Fabric (or four - inch layer of hay or straw covered with red rosin paper) Perforation Drilled into Cap Near Top Horizontally < < At Least 12" to of Rock Layer Perforations Located at Bottom of Lateral $A"/ s &-- Original Soil Properly Scarified Before Placing Sand Layer Edge a dad :, A,, .�.. LAYER OF GEOTEXTILE FABRIC GRASS COVER CLEAN SAND FILL--�,, MAXIMUM SLOPE 3 TO I LOAMY SAND CAP PERFORATED LATERAL 6 INCHES TOPSOIL d.'sc:. e/w 9Go,5 CLEAN ROCK T4' TOPSOIL PLOWED OR 3/4 TO 2'/2 INCHES SUBSOIL DISKED SURFACE _37.- �,�•io. y,e CROSS SECTION A - A 2. PIPE FROM PUMPING CHAMBER Y �lllT 4J PERFORATED ' LATERALS BED AREA 2: i I W" W I m 2 I Z Z 20 �-o-�--O 20 INCHES w INCHES LI DIKE —'O FEET -�- p E TOTAL WIDTH Ye SLOPE 1 PLAN VIEW PERFORATED LATERALS _ SANDY LOAM: SO rL LAYER OF GE ATILE • F RI OR -RAY- BY BUILDING PAPER201 / x PIPE FROM PUMP CLAN©CK �, �• /� DIVERSION FOR �• . • ,� . � ' ,/ SURFACE WATER I« TOPSOIL i� • 3 SA14 NI) • +' 6'r :_ - — ` • :�:'�,;, :;, ::.: pep F I `` Soo 6.. EIV up Bg NArURM IERRQ Li%S . YER WATER TIGHT 8 LOCKABLE F_'LECTRIC BOX - F'LUGS OR ELECTRIC CONNECTIONS --- .2" PVC CONDUIT SCHEDULE e0 ---� M MANHOLE COVER CHAINED 1% LOCKED SEALED MANHOLE RINGS UNION Ft... QV?t q�y q SEALED TANK COVER — PLASTIC ROPE OR CHAIN WITH ANCHOR ----,- ALARM FLOAT ON SErARATE ELECTRICAL CIRCUIT G� r"' �`"�"` L I - a START LEAL V__ -- - — Do,% .k..+ AWL.% I1.I -ro 3" '5HVT_- 9fFF—LEVEL.S7 PUMP CONTROL FLOAT f/.,- Q_v_L 00p /�CaN�Piw (�/ �w• J �%� NrrffNl6- REDWOODOR 7 REA-1 V'PUSDT74 4 min) ALL ELECTRIC CONNECTIONS MADE _t_ ' INSIDE BOX SPACE LOOP OF POWER CORD FOR -+ -- SE I TLEMEN-T FINAL GRADE '. AT LEAST 12" BELOW GRADE WIRE FROM POWER SUPPLY -ppPIP'',,E IS LAID ON�uJ A UNIFORM SLOPE FROM r8W RR TA' I M UUP TO CK IL TREAT MEN T AREA �— IF PIPE AI' TANK MUST BE LOWER THAN UNION TO GET ELEVATION FOR DRAINBACK, A 1/4 INCH WEEP HOLE MUST BE USED -- WEEP HOLE NOTES: ELECTRICAL WIRE FROM POWER SUPPLY MU;'T NOT RUN OVER ANY 7ANKS BUT MUST BE LAID BESIDE OTHER TANKS AND MUST BE PLACED IN CONDUIT ALONG POST ELECTRICAL CORDS FROM PUMP AND load FLOATS MUST BE RUN TI IROUGH CONDUIT. WIRES CANNOT HAVE GROUND CON 1 ACT. F 5 f- 8'/ s"r r•/ / F f t! �� / 6/oe.k l toX u�ad dec..r d AV, ',4 it PL'NiP SELECTION PROCEDURE A. Determine pump capacity: 1. Minimum suggested is 600 gallons per hour (10 gpm) to stay ahead of - ater use rate. 2. Maximum suggested for delivery to a drop box of a home system is 2,700 gallons per hour (45 gpm) to prevent build-up of pressure in drop box. 3. Use value from design of pressure distribution system. SELECTED PL11P CAPACITY 35,S gpm B. Determine head requirements: 1. Elevation difterence between Pump and pois:tt of discharge. _ k - -1 feet 2. If pumping to a pressure distribution system, add five feet for pressure required at manifold 'S feet 3. Friction loss a. Enter friction loss table with gpm.and sae diameter. Read friction loss in feet per 100 feet from page F-18. F.L. _ Z, k'- ft./100 ft of pipe b. Determine total pipe length from pump to discharge point. Add 25 percent to pipe length for firing loss, or use a fitting loss chart. Equivalent pipe length - 1.225 tim Pi pe length = x IM = I ZZ'tifeet c. Calculate total friction loss by multiplying friction loss to ft/100 ft by equivalent pipe length. s., Total friction lo. = 1 '12 -, x 2 L t 10o = 2. (. het 4. Total head required is the sum of elevation difference, special head requirements, and total friction loss. ill (2) 13c) TOTAL HEAD 2 S 3 feet C. Pump selection 1. A pump must be sele:ted to deliver at least t 1 gpm (Step A) with at least 25 3 feet of total head (Step BY t p U. k /z %4 D. Total Pumpout Volume 1. To maximize purnp select sump size fcr 4 to 5 pump operations per day. 660 gpd + 4 : /So gallons per dose 2. Calcu13te drainback 1. Determine total pir* length, 10 feet. 2. Determine liquid volume of p-?e, /7, Q gallons per 100 feet. (see page F-18) 3. Multiply length by volume: Drainback quantity = _ t feet x /Z,6Vgal.ons/100 ft. = 17 gallons. Suggested drainback quannty is 10 percent of pumped quannty. A larger dairbzck pc -tentage will decrease purnF station efficiency sftgh:ly but pumping energy costs are us:,ai)% a relatively small part of the tots) hc•useholl� energy costs. 3. Total pump out volume equals dose volume + drainback 150 gallons pe- dow . 1-1 galicns = Is (+ 7 Total Callcns X P:pc LcF:h 4.L.1 f6 o, s Porn: cf D's Ele+auon D ffc:ence� P=P •-� 441,1 1 F-18b 1.5 =h G 3.0 trch rim 10 0." 0.20 12 0.% 0.28 14 1.23 0.38 16 163 048 is 2.03 0.60 20 2.47 0.73 0.11 25 3?3 1.11 0,!6 30 5.23 1.5:, 0.: t 35 7.90 2.061! 0.3-0 40 1107 2 64 0.39 45 14.73 328 048 50 3.99 0.5s 55 4.76 0.'0 60 5.60 G.E2 D-7 Iran[ RlOM5 IM Ga,OMS .R ZZi TIP[ o• KS ov.cr a 300 as lac ac% aeo aoo 2.0 I • ?5C 450 "A Tom• t. Is" 5e5 11- I 105C Wo 1'D � taco s•s •_r c..�-, :ear 'news- I Galln-, nr V% ice- 1 4.49 1.25 7.77 1.5 10.58 17.4 .5 24.87 3 38, 4 66.1 FOXWOOD SECOND ADL SCALE IN FEET --- — -- NOENOTES IAON MONUMENT u:ysaoFd;.. Jiw •.idje+n� !✓ ! w 0wQ ea•9 a.ae,xf.+.a!4 aaJ m�uc a.]�,t:,t Lass AM-Aia.vwja abrn on dosed ftI en caaww.d da/rwr .w4a, ./wrr. sa iwfcwh! ew f:e p! v AM PP 'H•ri Won :• saw to 1'' at trL 4`i�j ' 7.sls <e 3 40 7:�I i j► .J i �•,yaeg %3 ----- I1:: �n 1 fit• f%;� �� ,; � 3 � .(I• 1 s �w O II w `n<c� I AIL ....w.wr•��; � e�� A'I f Sam DIVISION, mthmuIN COUNTY. MINNESOTA ►IlrtNant to Chapter $10. Minnesota Laws of 1111, this out has Men 4Wrevad this _ day Of • 1! OERNMO N. LARSON. MEMMIIM COUNTY SURVEYOR FMSTRAR OF TITUS. MEMWIN COUNTY. MINESOTA E horsily certify that the within plat of rOR11000 SECOND ADDITION was filed for record In this office this __ dir of fS�. K o'CIOth � N. •M� ' ' R. DAN CARLSON. REGISTRAR Of TITLES 1y Deputy ZO`