HomeMy WebLinkAbout038-1203-10-000 Wisconsin Department of Commerce SOIL �.k} tOf� RT
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Soll Application Rate
Horizon Depth Dominant Color Redox Description Texture Structure Consistence Boundary Roots GPDlfF
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Soil Application Rate
Horizon Depth Dominant Color Redox Description Texture Structure Consistence Boundary Roots GPDHF
in. Munsell Qu.Sz. Cont Color Gr.Sz.Sh. -Eff#1 `Eif#2
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Effluent#1 SOD,>30 1220 mg1L and TSS>30:_<150/r Effluent#2=SOD 5 30 mWt and TSS 130 mgll-
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Address Date Evaluation Conductea ,. Telephone Number
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Property Owner Parcel ID# __. _ _.� Page of
Ong# ❑ Boring 14® 0-pit Ground surface elev._��6 7 ft. Depth to limiting factor._in. Soil Application Rate
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Horizon Depth Dominant Color Redox Description Texture Structure Consistence Boundary Roots GPD1ff
in. Munsell Qu.Sz. Cont.Color Gr.Sz.Sh. -Etf#1 1 10#2
Boring# ❑ Boring
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Sod Ioation Rate
Horizon Depth Dominant Color Redox Description Texture Structure Consistence Boundary Roots P
In. Munsell Qu.Sz. Cont.Color Gr.Sz.Sh. -Eff#1 -E1#2
Effluent#1 BOD,>30:a 220 mg/L and TSS>30.5 150 mgA- -Effluent#2-BOD,c 30 mg1L and TSS 130 mg1L
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SBD4330(RAM)
Soil Test Plot Pla
Project Name Ronald Wohlers Sh ' d
Address 1282 200th Ave
N ew Richmond WI 54017 TM # 26900
Lot 16 Subdivision Wohlers Estates Date 8/16/00
SW/SE 1/4 SE 1/4S 23 T 31 N/R 18 W Township Star Prairie
❑ Boring Q Well PL Property Line County ST. CROIX
BM or VRP Assume Elevation 100 ft. Top of Wood Post
System Elevation 91.2 *HRPSame as Benchmark
Alt. BM Top of Survey Pipe @ 94.0'
Pro Town Road
198' P.L.
Alt
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95' B.M.
96' 6% B-1 10'
Slop
97' B-
80'
40
30 B-2 >,
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240' Property Line
ST. CROIX COUNTY
WISCONSIN
• '�'� _ w. ZONING DEPARTMENT
would ST.CROIX COUNTY GOVERNMENT CENTER
- 1101 Carmichael Road
Hudson,WI 54016-7710
Phone: (715)386-4680 Fax(715)3864686
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Memo to File
From Pam Quinn
Date: 4/27/2004
Re: Sandy loam structure misinterpretation on subdivision sal Mrts
D�
Recent soil on-site determinations have brought a problem to our attention. During these on-
sites,bofings were excavated to confirm soil conditions where two conflicting soil reports had
been submitted for zoni department review. The soil profiles, evaluated by myself,Dave
Fogerty, and Dave Steel(all certified soil testers)differed from the original soil reports in that
massive(structureless)sandy loams were encountered in horizons that were described as having
either moderate, medium subangular blocky(2msbk)structure by Adam Schumak�eaa1r,,
( . Bird. There apparently has been a
misunderstanding between"structure"caused by handling samples of the soil during texturing
versus the soil characteristics in situ. The soil, when chunks were taken out of the profile to hand
texture,with pressure parted into"crumbs"that appeared at first to be subangular or granular in
shape. However,these were not true peds that broke apart along planes of weakness,but
fragments created by handling. The soil when observed in the horizon did not have distinct units
of structure and should have been reported as"massive".
Added notation: on 4/23/04 Mark Iverson(Cedar Corp. certified professional soil scientist),
Shaun Bird, and myself did an evaluation of soils on Lots 6 &9, Richmond Meadows where the
original soil report described the third horizon as sandy loam, "I mgr". On Lot 6 we checked
soil profiles within a POWTS distribution cell and then excavated a test pit on Lot 9. The sandy
loams in question were a weak, coarse to very coarse subangular blocky structure,where planes
of weakness were just discernible when peds were parted from the profile. The peds separated
with very light pressure by soil tester. Sand coatings were observed on the ped faces in the Lot 9
soils,which supported the determination that some structure existed to allow water to move
through the upper portion of the sandy loam horizon. However,below the weak-structured soil
we found massive(structureless) sandy loams and the boundary between these horizons was
irregular,which would mean a distribution cell could encounter alternating weak and massive
sandy loam. Shaun said he would amend his soil reports with a memo recommending that any
vsnAuL�%&�rftn%& JA t ;a&"imgr"or,7 n ".be assigwd allow low of.,0.3,U#42
(see attached memo fbrrW1 tWWl Meadow)to provide a larger dispersal aria.
Page Two—Soil Memo 4/27/04
Massive sandy loams have been assigned a soil application rate of-0.2 gpd/ftz with the code:
chauges in Comm Foctive as of 2/1/04. The application rates listed on the soil reports
were higher due tom structure having been described as eit�rer viea�k or moderate,wluc�effects
the calculations for sizing of POWTS distribution cells. Obviously, one of the concerns is to
make sure loading rates for the soils are not in error and allow undersized POWTS to be
installed. For example, in December 2003, Lot 35 of Richmond Meadows subdivision had to
have its loading rate reduced to 0.3 gpd/sq. ft. when the installer encountered massive sandy
loam at the system elevation. The sandy loam horizon had been described on the soil report as
"l mgr"with firm consistence.
Leroy Jansky,Dept. of Commerce Regional Wastewater Specialist,has been consulted on this
situation and advised the zoning department to require on-site verifications for any lots with this
potential misinterpretation on the soil reports. All soil reports with sandy loam"1 or 2 mgr"as
its structure will be required to use a design based on the current code's soil application rate for
massive sandy loam @ 0.2 gpd/sq. ft. unless additional soil testing proves otherwise.
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