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HomeMy WebLinkAbout040-1318-00-017 (2) CROIX CO A I UNTY &#A PLANNING &. ZONING June 22, 2006 Mary Jo Hollister, CST W9875 690th Ave. River Falls, WI 54022 RE: Hills of Troy Soil Evaluation Reports Lots 17 & 22 Code SE/NW Section 11, T28N, R1 9W Town of Troy Administration 715-386-4680 andrnfom,adon Dear Mary Jo: Planning I completed a review of revised soil evaluation reports submitted on 5/24/06 and 715-386- find that additional information will be required for lots 17 and 22. The following summary provides specific data that will be necessary before these reports can Rear be used to design mound private on-site wastewater treatment systems 7 386 6-467-467 7 (POWTS): G��`'�LC.r 7 386-4675 Lot 17 — Due to extensive grading at the rear of this lot, adjacent td a drainage easement and walking trail, the NE corner iron pipe benchmark may have been altered and its elevation may not be accurate for POWTS installation. You did not correct the problem with alternate Benchmark at elevation 1075.24', which isl` shown on the plot plan as being located higher than the 1076' contour line. Boring B 171 elevation is at 1076.28' and appears to be below the benchmark on(fi��i the plot plan. (Note: This same benchmark is also wrong on lot 18 soil report, r but another benchmark can be used for that system's design) J In addition, you cannot arbitrarily modify the contours for the site plan from the original engineer's plan. You need to find the benchmark and obtain an accurateV elevation so that a POWTS installer can use it to establish a contour for the mound. Lot 22—You cannot add contour lines to the engineer's drawing to make the contour elevations work. The corner iron pipe elevations and borings B-22A and B-22C appear correct, but B-22B had an elevation of 1033.27' at a location on the plot plan between contours 1026' and 1028'. Either the boring was much higher on the slope than indicated on the plot plan or a math error was made when Ogden's survey crew gave you the elevation data. By modifying the plot plan to add contours, you now created a 22% slope where a 7% slope was originally shown. Has the site been cut or altered?? You need to verify the actual elevation on your boring B-22B and provide that data before a mound design can be developed for this lot. Sr.CROIX COUNTY GOVERNMENT CENTER 1 10 1 CARMICHAEL ROAD,HUDSON, W/ 54016 715386,4686 FAA PZ�°CO.SAINTCROIX.WI.US WWW.CO.SAINTCROIX.WI.US Please rp ise e p o pans an a eva ion a a so a e so rrepo s may re E-d-for us °- in POW ITS design or issuance of a sanitary permit. Feel free to contact me if you have questio s regarding the requested data. Sincerely, r Pamela Qu Zoning Spe alist Cc: Loui iFlkins, Ogden Engineering Cr ig Lilja, Troy Development Corp. ian Wert, Town of Troy Building Inspector Subdivision file ST.CROIX COUNTY GOVERNMENT CENTER 1 10 1 CARMICHAEL ROAD,HUDSON, WI 54016 715-386-4686 FAA PZPCO.SAINT-CROIX.W1.US WWW.CO.SAINT-CROIX.WI.US Wisconsin Department of Commerce SOIL EVALUATION REPORT page 1 of 3 Division of Safely and Buildings in accordance with Comm 85,Wis. Adm. Code County ST.CROIX Attach complete site plan on paper not less than 81/2 x 11 inches in size.Plan must include,but not limited to:vertical and horizontal reference point(BM),direction and Parcel I.D. -1 percent slope,scale or dimensions,north arrow,and location and distance to nearest road. _ Please point ate nt all information. Personal information you Provide may be used for secondary Purposes(Privacy Law,s.15.04(1)(m)). (11,!q o6 Property Owner Location NORTH DAKOTA STATE UNIVERSITY c/o Leo Beskar tPLLot 1/4 NW 1/4 S 11 T 28 N R 19 1:1 )❑W Property Owner's Mailing Address Lot WE Block# am.Name or CSW Rodli,Beskar,Boles&Krueger SC,219 N.Main Street 17 - Hills of Troy city Stake Zip Code Phone Number [:]village ElTown Nearest Road River Falls, WI 1 54022 ( 715) 425-7281 Coulee Trail El New Construction UseE] Residential/Number of bedrooms 4 Code derived design flow rate 600 GPD Replacement Public or commercial-Describe: Parent material loess over till Flood Plain elevation if applicable General comments Mound System-1.50&sand fill-0.4 loading rate and recommendations: - 7 13f1d I 0 75 2 1'5 hl° 1,21. �n Cm��av�S�f pre- meant system--0.50 ft.sand fill-0.6 loading rate) W7 0'1 b. 2 o Boring# ° Boling 0 Pit Ground surface elev. 1073.56 ft. Depth to limiting factor 30 in. Sot ication Rate Horizon Depth Dominant Color Redox Description Texture St ucture Consistence Boundary Roots GPD/fP in. Munsell Qu.Sz. Cont.Color Gr.Sz.Sh. 'Eff#1 *011112 1 0-3 10YR2/2 - sit 2fabk mvfr as 3vf-m 0.6 0.8 2 3-13 10YR2/2 - sit 2f-msbk mfr ai 2vf-m 0.6 0.8 3 13-24 10YR3/4 - sit 2fabk mfr as lvf-m 0.6 0.8 4 24-30 7.5YR4/4 - sl Om mfr as lvf-f 1 0.2 0.6 5 30-33 7.5YR4/4 c2f 7.5YR3/4 sl Om mfr as - 0.2 0.6 6 33-34 10YR5/6 c2d IOYR4/6 c 2fgr mfi - - 0.2 0.3 Horizons 4 &5 have some gr. ❑ �n9 22 B 1076.28 .. ❑ � 0 Pit Ground surface elev. ft. Depth to limiting factor in. Sot Application Rate Horizon Depth Dominant Color Redox Description Texture Structure Consistence Boundary Roots GPD/fP in. Munsell Qu.Sz. Cont.Color Gr.Sz.Sh. 'Ef#1 'Eff02 1 0-9 10YR3/2 - sit 3fgr&abk mvfr as 2vf-m 0.6 0.8 2 9-16 10YR3/4 - sit 3fabk mfr cs 2vf-m 0.6 0.8 3 16-22 7.5YR3/4 - sl Ifsbk mfr ab lvf-m 0.4 0.7 4 22-31 7.5YR4/4 c2f7.5YR3/4 sl Om mfr - lvf-m 0.2 0.6 Some gr,few cobbles;one boulder. 'Effluent#1=BOD >30:5 220 mg&and TSS>30:5 150 mg& 'Effluent#2=B013,:5 30 mg&and TSS<30 mg/L CST Name(Please Print) ahure CST Number M Jo Hollister tf N &11" 224832 Address Date Evaluation Conducted Telephone Number W9875 690th Avenue, River Falls, WI 54022 05-05-05 (715)426-1775 Ovu tbtb: OS-o2-rxn ..,.. 05-w' �Yo (Pending) pap 2 � 3 pmpe�owner NDSU(Lot 17) Parcel ID# a Bo ft# El Boring 1072.42 ft. D�lD 9 factor 18 in Sol Rate Pd Ground surface elev. Redox Description T 1e Consistence Bowl Rods C'f' Horizon Depth Dorrrrrard Gr.Sz.Sh. 'E1- in. Mtarsell CAr.Sz. Coot Color 1 0-8 10YR3/2 sil 2fabk mvfr as 2vf-m 0.6 0.8 sci 2fabk mfr cw Ivf-m 0.4 0.6 2 8-12 10YR3/4 — mfr cb lvf-f 0.2 0.3 3 12-18 10YR5/8 — c 2fgr 4 18-20 _ — tiMsbr — — — Ong# �g Pit Ground surface elev. ft. Depth b�iiirig factor e►• Sol r*EM: Redwc Description Texture Sbuck a eardery Rods Horizon Depth Dom "EWI in. Munsell Qu Sz Cord Color '� Boring ❑Boring# 9 Pit Ground surfaceelev. ft. Depth to lrift factor m- Sod R86e Redox Description Texture Structure Consistence Boundary Roots GPQIfF Horizon Depth Domicerd Gr.Sz Sh. 'E1fE'1 'Eff#2 in. Munsell Qu.Sz. coot color it > <220 and TSS>30<_150 mgfL ' Effluent#2=BOR<30 ff9t and TSS_<30 rrgll #1 BOD 30_ mgA- Eflkrerif s eider and employer. If you need assistance to access services or 's an equal o rwnity service Pro ent of Commerce r W PPo The Department need material in an alternate format.Pl ease contact the department at 608-266-3151 or TTY 608-264-8777. =433Qred(8.07100) Plot Plan f or Sills of Troy Page 3 of 3 Town of Troy, & Croix County, Waconsin Lot i h 1" = 40 ft. Legal Lkmeriptlon NTc'14 A —MVE Ow'1 SAC•it T� ZgN. 2 fL contoltrs ,mgw,TTowm w- rtRay =�Oepit B-16/ 7C OL .�t2' OP 1 1/4 —178 � i87fo►•I$' t I f 17 . a I of s Pqs�r Jpwc R-T- 114 IQ —18A STe CROIX COUNTY PLANNING & ZONING '- January 19, 2006 Mr. Craig Lilja °c/o Troy Development 11806 Aberdeen Street, Suite 290' Blaine, MN 55449 RE: Hills of Troy Soil Evaluation Reports Review Code Administration SE/NW Section 11, T28N, R1 9W Town of Troy 715-386-4680 Land Information Dear Mr. Lilja: Planning I have completed a review of soil evaluation reports submitted to our office for Lots 1 —62 715-386-4 on the above-referenced development and find that additional information will be required for 18 of the reports. The following summary provides specific data that will be necessary Real perty before these reports can be used to design mound private on-site wastewater treatment 7 386-4677 systems (POWTS): R cling 75 Lot 1 The soil application rate that must be used to calculate mound basal area (0.2 gpd/ftz) requires a long, narrow mound with a linear loading rate of<4.5 gal./ft./day. The existing tested area allows a maximum mound length of 90 feet, which is likely too short to meet the linear loading rate requirement. In addition, the elevation reported for boring R-1A is incorrect and must be re-measured to provide an accurate contour elevation for mound design. Lot 4—the entire original soil-tested area was covered during excavation and grading of the building pad. From an on-site investigation made 1/17/06, 1 observed that a crescent- shaped area of undisturbed soils remains between the toe of the filled building pad and the 20% slopes at the rear of the lot. According to Ms. Hollister, there is another boring (R-4E) that was not included in her submittal, but is located in this undisturbed area. She needs to submit an amended soil evaluation report that includes a profile description and shows the location of this boring so that a contour can be established for a mound. In addition, both benchmark elevations need to be checked and verified, since the elevations are 0.91' and 2.05' higher than the contour 1066' shown on the plot plan. The amended report must be completed before a design can be created for a proposed POWTS. Please note, Ms. Hollister is a CST, but not a POWTS designer, so plot plan and mound plan view calculations she has prepared, indicating a location for a 33' x 124' mound, are only an example of what might work after the soil data has been provided. Lots 10 & 11 — I made a note regarding inconsistencies for BM @ 1077.15, which is shown in different locations on each plot plan. I recommended using the alternate lot corner I. P. benchmark @ 1075.10' to avoid errors in establishing mound contour elevations. Lots 1, ,,,9110, 11, 14 17, 1 J22 24, 25, 31, 32, 34, 40, 41, 45, 46 & 62 - On all the above lhere are discrep ies een the elevations and test it locations compared P p s to the contours shown on Ms. Hollister's site plans. In a telephone discussion with CST ST.CROIX COUNTY GOVERNMENT CENTER 1 10 1 CARMICHAEL ROAD,HUDSON, W/ 54016 715386.4686 F.4x- PZC�CO.SA/NT CRO/X Wl.US W W W. O.SAI NT Page Tw i o roy of epo s Mary Jo ollister, I was informed that most of the elevations reported for soil test pits were provided by the surveyor art of developing the preliminary plat. The individual soil report plot plans were created using copies of th liminary plat to show 2' contour intervals on the lot and locations of Mary Jo's test pits. When usin n Sea Level elevation (as opposed to an assumed elevation), the contours should be consistent he elevations given for each test pit on the plot plan. Some of the discrepancies may be a result of c largement and scale that are not 100% accurate. However, my concern are errors that range from to more than 6 feet difference in elevation, which is unacceptable. All reports that have discrepancie reater than 0.75' will be set aside and copies mailed to Mary Jo for re-calculation and/or corrections b re the reports will be released for use in designing POWTS. Our office, as a `governmental unit"for the state, is required by WI Comm 85.50 to complete soil report reviews withi months of receipt; these reports were submitted on 10/25/05. Please feel free to contact me if you a questions regarding the soil report review or status of individual lot reports. Sinc y, 1.-,...- meta Quinn Specialist Cc: L 'e Filkins, Ogden Engineering Jo Hollister, CST, Hollister Soil Testing an Wert, Town of Troy Building Inspector bdivision file ST.CROIX COUNTY GOVERNMENT CENTER 1 101 CARMICHAEL ROAD,HUDSON, W1 54016 715386-4686 FAX PZ @CO.SAINT-CROIX.WI.US WWW.CO.SAINT-CROIX.WI.US • Wisconsin Department of Comm ?' SOIL VALllATI9N REPORT Page 1 of 3 Division of Safety and Buildings in accordan Coma 85,Wis. Adm. Code County ` ST.CROIX Attach complete site plan o paper not less then 81/2 x 11 inch in size.Plan must include,but not limited to:v rtical and horizontal ref4*ce poin (BM),direction and Parcel I.D. (PENDING) perecnt olopo,ecale or di nsioris',/nntf �rrnw,and Incation a d distance to nearest road. Za J� Q Rev' wed by D7171o& Pleas BI(��{dbilnation� _ Personal information you provide may be used for se purpo s(Privacy Law,s.15.04(1)(m)). Property Owner Property Location ■ NORTH DAKOTA STATE UNIVERSITY c/o Leo Beskar Govt.Lot ----NE 1/4 NW 1/4 S I I T 28 N R 19 EE((or© Property Owner's Mailing Address Lot# I Block# Subd. Name or CSM# Rodli,Beskar,Boles&Krueger SC,219 N.Main Street 17 --- Hills of Troy City State Zip Code Phone Number []City illage Town Nearest Road River Falls, WI 1 54022 ( 715) 425-7281 Coulee Trail Q New Construction LlseE] Residential/Number of bedrooms 4 Code derived design flow rate 600 GPD Replacement Public or commercial-Describe: Parent material loess over till Flood Plain elevation if applicable 1N tt General comments Mound System-- 1.50 ft.sand fill--0.4 loading rate and re com endations: (If pre-treatment syst --0.50 ft.sand fill--0.6 loading rate) Boring �YY10 to A Boring# Y1 I Q Pit Ground surface elev. 1073.56 Depth to limiting factor 30 In Soil A li ion Rat k� V / Horizon Depth Dominant Color Redox Description Texture Structure Consistence Boundary Roots GPD/fft `01� in. Munsell Qu.Sz. Cont.Color Gr.Sz.Sh. *Eff#1 *Eff#2 1 0-3 10YR2/2 sil 2fabk mvfr as 3vf-m 0.6 0.8 2 3-13 10YR2/2 sil 2f-msbk mfr ai 2vf-m 0.6 0.8 3 13-24 10YR3/4 - sil 2fabk mfr as lvf-m 0.6 0.8 4 24-30 7.5YR4/4 sl Om mfr as lvf-f 0.2 0.6 5 30-33 7.5YR4/4 c2f 7.5YR3/4 sl Om mfr as -- 0.2 0.6 6 33-34 10YR5/6 c2d IOYR4/6 c 2fgr mfi -- -- 0.2 0.3 Horizons 4 &5 have some gr. F Boring# El P t ng 1076.28 22 ■ Ground surface elev. ft. Depth to limiting factor in. Soil Application Rate Horizon Depth Dominant Color Redox Description Texture Structure Consistence Eas Roots GPD/fP in. Munsell Qu.Sz. Cont.Color Gr.Sz.Sh. *Eff#1 *Eff#2 1 0-9 10YR3/2 sil 3fgr&abk mvfr 2vf-m 0.6 0.8 2 9-16 10YR3/4 sil 3fabk mfr 2vf-m 0.6 0.8 3 16-22 7.5YR3/4 - sl Ifsbk mfr ab lvf-m 0.4 0.7 4 22-31 7.5YR4/4 c2f 7.5YR3/4 sl Om mfr -- lvf-m 0.2 0.6 Some gr;few cobbles;one boulder. "Effluent'#1=BODS>30<220 mg/L and TSS>30<150 mg/L Effluent#2=BOD5<30 mg/L and TSS<30 mg/L CST Name(Please Print) CST Number Ma ignature Jo Hollister 224832 Address Date Evaluation Conducted Telephone Number W9875 690th Avenue, River Falls, WI 54022 05-05-05 (715)426- 1775 X ' f Property Owner NDSU(Lot 17) Parcel ID# (Pending) Page 2 of 3 FLI Boring# Boring 1072.42 I{/}'vW- �/ 118 . 0 Pit Ground surface elev Depth o smiting factor in. Soil Application Rate Horizon Depth Dominant Color Redox Description Texture Structure Consistence Boundary Roots GPDKf in. Munsell Qu.Sz. Cont.Color Gr.Sz.Sh. *Eff#1 *Eff#2 1 0-8 10YR3/2 -- sil 2fabk mvfr as 2vf-m 0.6 0.8 2 8-12 10YR3/4 -- scl 2fabk mfr cw lvf-m 0.4 0.6 3 12-18 10YR5/8 -- c 2fgr mfr cb lvf--f 0.2 0.3 4 18-20 __ -_ till/lsbr -- -- -' ❑ Boring# El� Boring M Pit Ground surface elev. ft. Depth to limiting factor in. Soil lication Rate Horizon Depth Dominant Color Redox Description Texture Structure Consistence Boundary Roots GPD/fF in. Munsell Qu.Sz. Cont.Color Gr.Sz.Sh. *Eff#1 *Eff#2 Boring Boring# Ground surface elev. ft. Depth to limiting factor in. F-1 Elpit Soil lication Rate Horizon Depth Dominant Color Redox Description Texture Structure Consistence Boundary Roots GPD/ff in. Munsell Qu.Sz. Cont.Color Gr.Sz.Sh. *Eff#1 *Eff#2 I *Effluent#1 =BODS>30<220 mg/L and TSS>30<150 mg/L *Effluent#2=BOD5<30 mg/L and TSS<30 mg/L The Department of Commerce is an equal opportunity service provider and employer. If you need assistance to access services or need material in an alternate format, please contact the department at 608-266-3151 or TTY 608-264-8777. SBD-8330Test(R.07/00) . Plot Plan for Dills of Troy Page 3 of s Town of Troy, St. Croix County, Wisconsin Lot 17 � = 4Oft. Legal Description A `/4 OF-1 �, stN. 10 Tz 2 ft. contours ,R.+gr w, TOWN OF: -tR()V = Backhoe pit i �: �•• B-16/ 7C �L iC7 L I e BENCH ARK: TOP 0 1 1/4 ON P PE VA ION" - - - - - - - 17B `/ i 17 a a !�� 1 kRK: v �c �� ' ` I fog U 4 " F"T I 'Q B-18A