HomeMy WebLinkAbout034-1065-60-000 (2) Visconsin ORIGINAL co -o T
SM EVALUATION REPORT
Department of Co merce in a p is.A Code Pa 71 of
Division of Safety a uildings R Certified Soil Testing, LL
Attach complete on p not less than 8%x 1 inches In iz Pla t County
p m )�. St. Croix
include,but not Iii t . rtical horizontal referen of rr
percent slope,scale r d' ns,n rrow,and loc tion an distance to nearest roa Parcel I.D.
lea alllnformatlo 034-1065-60-000
ST.CROIX COUNTY Reviewed Date
Personal information you provide may for secondary pur ses(Privacy Law s
Property Owner Property Location XJ
Thompson, Stan Govt.Lot (✓f'z E 1 A SE1 S29,T29N, R15W
Property Owner's Mailing Address Lot# Block# Su . Name r CSM#
2867 HW 12 0 L, '
City State Zip Code Phone Number
❑ City ❑Village ® Town Nearest Road
Wilson WI 1 54027 1 715-772-4867 Springfield USHW 12
❑'New Construction Use: ® Residential/Number of bedrooms 3 Code derived design flow rate 450 GPD
Replacement ❑ Public or commercial-Describe:
Parent material loess over till Flood plain elevation,if applicable NA ft.
General comments i 20'rock cell mound on contour as upslope edge of rock w/2.5'sand fill w/state/county
and recommendatio . approval for interpretive determination
❑Boring#
Boring
Pit Ground surface elev. 104.1 ft. Depth to limiting factor 0 in. Soil Application Rate
Horizon Depth Dominant`Color . Reifax Description; 'Texture" Structl�re dkiisisten" 0oundary Roots GPD/ft2
in. Munselt Qu.Sz Cant.Color Car.8h, 'Eff#1 *Eff#2
1 0-5 10YR 3/2 - sil 2 f sbk mvfr gs if/m .6 .8
2 5-10 10YR 3/2 - sil 2 f-m sbk mvfr cs lm .6 .8
3 1 -16 10YR 5/3 f2d 7.5YR 4/6 sil 1 m sbk mvfr gs lm .4 .6
4 16-26 7.5YR 4/4 c2d 7.5YR 4/6,5/8 Is 1 c sbk mvfr gw 1m .7 1.6
5 26-40 7.5YR 4/4 m2p 7.5YR 4/6,5/8 sl 0 m mvfr - im .2 .6
7.5YR 5/3
lacks A+4"; presumptive limit is 011;@ field capacbty below 26";side seep @ 30"; 1 m roots to 32"
2 Boring#
❑Boring
®Pit Ground surface elev. 104.0 ft. Depth to limiting factor 0 in. ISoil Application Rate
Horizon Depth Dominant Color Redox Description' Texture Structure Consisten Boundary Roots GPD/ft2
in. Munsell Qu.Sz,Cont.Color Gr.Sz:Sh. "Eff#1 •Eff#2
1 0-4,\ 10YR 3/2 sil 2 m gr mvfr gs 1f/m .6 .8
2 4-11 10YR 3/2 - sil 1 m sbk mvfr cs 1m .4 .6
3 11-16 10YR 5/3 c2p 7.5YR 4/6,4/2 sil 1 c sbk mvfr gs im .4 .6
4 16-26 7.5YR 4/4 m2p 7.5YR 4/6,5/8 scl 1 c sbk mvfr gs im .2 .3
5 26-36 7.5YR 4/4 c2p 7.5YR 5/3,5/2 scl 0 m mfi - - 0 0
::-77 -- . . F--T 1-1 -
lacks A+4"; presumptive limit is 0";side seep @ 34"; 1 m roots to 26'; H 5 has inclusions 5YR 4/3 scl
Effluent#1 =BOD5>30<220 mg/L and TSS>30_<150 /L 'Effluent#2=BOD5 s 30 mg/L and TSS<30 mg/L
CST Name(Please Print) Sign to : CST Number CA�Henry F. Grote 222774
Address Certified Soil Testing,LLC Date Evaluation Conducted Telephone Number
E.4366 353rd Ave.Menomonie,WI 54751 2/2/2006 715-233-0398
SBD-8330(K07/00)
Property Owner Thompson, Stan Parcel ID# 034-1065-60-00¢ ; Page 2 of 5
❑3 - Boring
Boring# �Pit Ground surface elev. 98.4 ft. Depth to limiting factor 0 in. Soil Application Rat
Horizon Depth Dominant Color Redox Description Texture Structure Consistence Boundary cots GPD/ft'
in. Munsell Qu.Sz.Cont.Cola Gr.Sz.Sh. `Eff#1 `Eff#2
1 0-4 10YR 3/3 - sil 2 m gr mvfr gs im .6 .8
2 ',� 4-11 10YR 3/3 - sil 1 m sbk mvfr cs lm 4 6
3 11-16 10YR 4/4 f2f 7.5YR 4/6 sil 1 m sbk mvfr gs lm .4 .6
4 16-24 10YR 4/4 f2d 7.5YR 10YR 1 m-c sbk mvfr gs im .4 .6
f2 7.5YR
lOYR 6/2 2
5 24-27 7.5YR 4/4 l0YR 612 4/6 sl 0 m mvfr cs if .2 I .6
6 27-33 7.5YR 4/3 m2p 10YR 6/2 scl 0 m mfr - - 0 0
c2p 7.5YR 5/8
lacks A+4"; presumptive limit is 0";side seep @ 27"; 1 f roots to 27"; H1&H2 are gritty w/s
4 Boring
Boring# <'pit Ground surface elev. 100.7 ft. Depth to limiting factor 0 in.
Soil Application Rat
Horizon Depth Dominant Color Redox Description Texture Structure- Consistence Boundary Roots GPD/ft'
in. Munsell Qu.Sz.Cont.Color Gr.Sz.Sh. 'Eff#1 •Eff#2
1 0-5 10YR 3/2 - sil 2 f sbk mvfr gs if/m .6 .8
2 5-9 10YR 3/2 sil 1 m sbk mvfr cs
? c2d 7.5YR 4/6
3 9-16 10YR 5/4 10YR 6/3 sil 1 m sbk mvfr gs lm .4 .6
j c2p 7.5YR 4/6
4 1 16-20 10YR 4/4 10YR 6/3 sil 1 m -c sbk mvfr cs - .4 .6
-
m2p 7.5YR 4/6,5/8
5 20-34 10YR 4/4 7.5YR 5 3 scl 0 m mf - - 0 0
---
I
lacks A+4"; presumptive limit is 0"; no side seep
Boring
Boring Boring# 9 factor 99,0 ft. Depth to limiting Pit Ground surface elev. 0 in. Soil Application Rat
Horizon Depth Dominant Color Redox Description Texture Structure Consistence Boundary Roots GPD/ft'
in. Munsell Qu.Sz.Cont.Cola Gr.Sz.Sh, 'Eff#1 'Eff#2
1 0-11 10YR 3/2 - sil 2 f-m sbk mvfr cs lm .6 .8
2 11-18 10YR 5/4 f2d 7.5YR 4/6,5/3 sl 1 m sbk mvfr cw 1m .4 .7
3 18-24 7.5YR 4/4 c2d 7.5YR 5/8,5/3 Is 0 sg ml cw lm .7 1.6
m2p 7.5YR 4/6,5/8 0 0
4 24-36 10YR 4/4 10YR 6/2 scl 0 m mfr - -
I
I
lacks A+4"; presumptive limit is 0"; side seep @ 24"; 1 m roots to 26"; H 2 redox features become c2d 14-18"
Effluent#1 =BODS>30<220 mg/L and TSS>30< 150 mg/L *Effluent#2=BODS<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.
SI3 D-83?0(R 07/00)
Certified Soil Testing,LLC
Property Owner Thompson, Stan Parcel ID# 034-1065-60-000 Page 3 of 5
6 X Boring
Boring# Pit Ground surface elev. 94.4 ft. Depth to limiting factor 0 in.
'� Soil Application Rat
Horizon Depth Dominant Color! Redox Description Texture Structure Consistence Boundary Roots GPD/ft2
in. Munsell Qu.Sz.Cont.°Color Gr.Sz.Sh. *Eff#1 *Eff#2
1 0-9 7.5YR 3/1 - sil 2 f sbk mvfr gs lm .6 .8
2 9-13 7.5YR 3/1 flf 7.5YR 3/4 sil 2 f sbk mvfr cs lm .6 .8
3 13-32 10YR 4/2 c2p 7.5YR 4/6,5/3 sicl 0 m mfr - - 0 0
lacks A+4"; presumptive limit is 0";side seep @ 30"; pit near centerline of surface drainage feature
7 Boring
Boring# X Pit Ground surface elev. 99.0 ft. Depth to limiting factor 0 in.
Soil Application Rat
Horizon Depth Dominant Color Redox Description Texture Structure Consistence Boundary Roots GPD/ft2
in. Munsell Qu.Sz.Cont.Cola Gr.Sz.Sh. •Eff#1 `Eff#2
1 0-5 10YR 3/2 - sil 2 f sbk mvfr gs 1m .6 .8
2 5-9.5 10YR 3/2 - sil 1 f-m sbk mvfr gs 1m .4 .6
3 9.5-10.5 10YR 3/2 flf 7.5YR 3/5 sil 1 m sbk mvfr gs 1m .4 .6
4 10.5-20 10YR 5/4 m2p 7.5YR 4/6 Sid 0 m mvfr gs if 0 0
m2p 7.5YR 4/6,5/8
5 20-32 10YR 4/4 10YR 6 2 scl 0 m mfi - 0 0
lacks A+4"; presumptive limit is 0"; no side seep
Boring
Boring# Pit Ground surface elev. 97.6 ft. Depth to limiting factor 0 in.
X Soil Application Rat
Horizon Depth Dominant Color Redox Description- Texture Structure Consistence Boundary Roots GPD/ft2
in. Munsell Qu.Sz.Cont.Cola Gr.Sz.Sh. *Eff#t I *Eff#2
1 0-9 10YR 3/2 - sil 2 f sbk mvfr cs lm .6 .8
2 9-13 10YR 5/4 f2d 7.5YR 4/6 sil 1 c sbk mvfr cs lm .4 6
c2d 7.5YR 5/8,4/6
3 13-22 7.5YR 4/4 10YR 6/2 Sid 0 m mfr gs if 0 0
4 22-32 7.5YR 4/4 c2d 7.5YR 5/8,4/6 10YR 6/2 scl 0 m mfi - 0 0
I
-- I
lacks A+4"; presumptive limit is 0"; H 2 has common gray(10YR 6/2)si coats on peds
*Effluent#1 =BODS>30<220 mg/L and TSS>30< 150 mg/L *Effluent#2=BODS<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-8330(R.07i00) Certified Soil Testing,LLC
I
Property Owner Thompson, Stan Parcel ID# 034-1065-60-000 Page 4 of 5
Fil Boring# -I Boring
'I Pit Ground surface elev. 96.7 ft. Depth to limiting factor 0 in. Soil Application Rat
Horizon Depth Dominant Color Redox Description Texture Structure Consistence Boundary Roots GPD/ft'
in. Munsell- Qu.Sz.Cont.Color Gr.Sz.Sh. 'Eff#i 'Eff#2
1 0-4 10YR 3/2 - sil 2 f sbk mvfr gs im .6 8
2 4-8 10YR 3/2 - sil 1 f-m sbk mvfr cs 1M .4 6
3 8-13 10YR 5/4 m2p 7.5YR 4/6 sil 1 c sbk mvfr gs lm .4 .6
4 13-18 7.5YR 4/4 m3p 7.5YR 4/6,5/3 sicl 0 m mfr gs - 0 0
10YR 6/2
5 c2d 7.5YR 4/6,5/3 18-31 7.5YR 4/4 10YR.5Y 6 2 SCI 0 m mf - - 0 0
I
i
lacks A+4'; presumptive limit is 0"
'Effluent#1 = BODS>30<220 mg/L and TSS>30< 150 mg/L *Effluent#2=BODS<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-8330(R 07/00) Certified Soil Testing,LLC
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04/01/2008 03:01 PM
Parcel #: 034-1065-60-000 PAGE 1 OF 1
034-TOWN OF SPRINGFIELD
Alt. Parcel#: 29.29.15.449B ST. CROIX COUNTY,WISCONSIN
Current X
Creation Date Historical Date Map# Sales Area Application# Permit# Permit Type
00 0
Tax Address:
Owner(s): O=Current Owner, C=Current Co-Owner
O-MIDTLING, BRADLEY B
BRADLEY B MIDTLING
PO BOX 67
WILSON WI 54027
Districts: SC= School SP= Special Property Address(es):
=Primary
Type Dist# Description
SC 2198 GLENWOOD CITY
SP 1700 WITC
Legal Description: Acres: 19.825 Plat: 3044-CSM 11-3044
SEC 29 T29N R15W PT E1/2 SE1/4 BEING Block/Condo Bldg: LOT OL1
OUTLOT 1 CSM 11/3044 19.825 ACRES Tract(s): (Sec-Twn-Rng 40 1/4 160 1/4)
29-29N-15W
Parcel History:
Notes: Doc# Vol/Page Type
Date TD
01/30/2007 843513
2008 SUMMARY Bill#: Fair Market Value: Assessed with:
Use Value Assessment
Last Changed: 06/15/2007
Valuations:
Description Class Acres Land improve 3,500 SNO Reason
AGRICULTURAL G4 19.820 3,500
Totals for 2008: 19 820 3,500 0 3,500
General Property 0.000 0 0
Woodland
Totals for 2007: 19 820 3,500 0 3,500
General Property 0.000 0 0
Woodland
Lottery Credit: Batch M
Claim Count: 0 Certification Date:
Specials: Amount
User Special Code Category
Special Assessments Special Charges Delinquent Charges 0.00
Total
0.00 0.00
6 FILED FEB 2 6 1996
8
JAN 23n
"Mm. ST.CROIX COUNTY
St.+Dlcokcl�„�WI
`� t SURVEYOR'S RECORD
L �
538809 , , \\
CERTIFIED SURVEY MAP
MABEL THOMPSON
Part of the Southeast 1/4 of the Southeast 1/4 and the Northeast 1/4 of the Southeast
1/4 of Section 29, Township 29 North, Range 15 West, Town of Springfield., St. Croix
County, Wisconsin.
O Indicates 1" x 24" iron pipe weighing 1.13 lbs. /lin. ft.
set.
Indicates fence.
`A\ N 44*,o,p r 11 COR. SEC. 29, T29 N, RI5W,
2' *0 ;- ` I2" IRON PIPE FOUND/
�3 9` S)A N`,V414 R �� \
Owner's Address: 4s'iB„F =D
2891 Highway 1112" '3),
Wilson, WI 54027 s3' — VAR. WIDTH a
a
Dated: December 23, 1995 M
"Revised this 23rd day of Jan. 1996." s4j'ss' 3'
t4 WA TER COURSE
JI LOT l OU7-LOT 33,�\
toX83'
23.990 ACRES. 19.825 ACRES `
~ /,044;999 SO.FT. 863,578 SO.FT.
1
v
23.484 ACRES EXC. ROAD RiO,lw, 19.330 ACRES EXC. ROAD R.O.W. �
�I 842, 02;4 SO. FT. I
/, 022,94/ SO.FT. � i �
JI t�t111t1Ur�� Approval of this outlot does not �mea )
`ttt � approval for a building site. Rj�er
��i�� to D.I.L.R. 83.03. ? �.
♦ `►I
Y V
o ? ' LAURE CE'
m . m W M jHY
13 N.
N VER FALLS,;� J.Q
o F '••., WISC. Q. c ku o 4 0.I WI
.0 LAND
Z) tul
x Laurence W. Murphy W N M w �I
pll �1
gistered Land Surveyor ? z j �I
q
This instrument drafted by Lr ce W. N I a
W Murphy (5 Lu 3 I N
h �- WA TERCOURSE ? (^ 3
N O
Q W h
� O I
I "= 200, 4, a h
LU SCALE � m
0 50' /00'/50'200' 300' 4 0' „ ! I „
• 2 Q y m 1 I, 2 0
2
3 R i W h l
S 114 COR. SEC. 29, T 29 YRI, W, Sr COR. SEC.29, T29N,R/5W,
I I " IRON PIPE FOUND)
/RAILROAD SP/KE SETT ROAD SETBACK LINE S8 "£ /32/.46 ' II7•
668.6 652. 78'
1321.39' 653,42'
(� b N89.50'I3"W 264t2.78, S LINE SE 11 4 =_--
33'33'
Vol. 11 Page,, 3044 UNPLA T TED LANDS s 6'
Certified Survey daps �I
St. Croix County, Wisconsin.
SHEET 1 OF 2 I I
CYN aftwa.
... :` -. ') "I Jay✓
Safety and Buildings
commerce.Wl.gov 4003 N KINNEY COULEE RD
LA CROSSE WI 54601-1831
TDD#:(608)264-8777
isconsin www.commerce.wi.gov/sb/
Department of Commerce www.wisconsin.gov
Jim Doyle,Governor
Mary P.Burke,Secretary
RECEIVED
April 18,2006
OCT � 8 2006
CUST ID No. 222774 ATTN POWTS Inspector
ST.CROIX COUNTY
HENRY F GROTE ZONING OFFICE
CERTIFIED SOIL TESTING
E4366 353RD AVE ST CROIX COUNTY SPIA MENOMONIE WI 54751 1101 CARMICHAEL RD
HUDSON WI 54016
CONDITIONAL APPROVAL
PLAN APPROVAL EXPIRES: 04/18/2008 Ifen cation Numbers
Transaction o. 1246783
SITE: Stan Thompson Site ID No. 4
Town of Springfield, St Croix County Please rear to both,identification numbers,_
SE 1/4, SE 1/4, S29, T29N,R15W above;iri.ailcrres andence`with the agency,
FOR: Object Type: Soil Saturation Determination Regulated Object ID No.: 1064394
The submittal described above has been reviewed for conformance with applicable Wisconsin Administrative Codes
and Wisconsin Statutes. The submittal has been CONDITIONALLY APPROVED. The owner,as defined in
chapter 101.01(10), Wisconsin Statutes,is responsible for compliance with all code requirements.
The following conditions shall be met during construction or installation and prior to occupancy or use:
1. Approval is hereby granted pursuant to s. Comm 85.60(2), Wis.Adm.Code,to estimate the depth to seasonal soil
saturation based on an interpretive determination process. Approval of the interpretive determination negates the
requirement in s. Comm 85.30(2)(b), Wis.Adm. Code to designate the ground surface as the highest level of soil
saturation when redoximorphic features are less than 4 inches below the bottom of the A horizon.
2. The estimated highest level of prolonged soil saturation approved under this determination is 9 inches below
grade. However,at least 30 inches of sand lift on top of 9 inches of unsaturated,in-situ soil is required for adequate
treatment and dispersal.
3. The basal soil application rate for the mound shall be 0.20 gpd/sf,and the linear loading rate 3.75 gpd/ft.
4. Chisel plowing to a depth of 16 inches immediately prior to sand placement is required to improve vertical water
movement into the soil solum.
5. Landscaping up slope of the mound shall be incorporated into the POWTS design to prevent surface water from
concentrating along the up slope edge of the mound and to divert surface water drainage away from the system.
6. This approval shall remain valid unless the site is altered in such a way that the depth to soil saturation would
change or if saturated conditions are observed for seven consecutive days at depths less than 3 feet below the
infiltrative surface of the POWTS distribution component.
7. This approval in no way relinquishes the use of color patterns to estimate the depth to high groundwater on any
other parcels or portions of parcels.
8. A copy of this approval letter and attachments must accompany the mound system design for this site for purposes
of plan approval and sanitary permit issuance.
If the Interpretive Determination Report was accompanied with a plan and an expiration date is shown on this letter,
the expiration date only applies to the plans for the design,not to the decision on the Interpretive Determination
Report.
HENRY F GROTE Page 2 4/18/2006
A copy of the approved plans,specifications and this letter shall be on-site during construction and open to
inspection by authorized representatives of the Department,which may include local inspectors.If plan index sheets
were submitted in lieu of additional full plansets,a copy of this approval letter and index sheet shall be attached to
plans that correspond with the copy on file with the Department.All permits required by the state or the local
municipality shall be obtained prior to commencement of construction/installation/operation. If this construction
project will disturb one or more acres of land,an Erosion Control Notice of Intent(NOI)shall be filed with the
department 14 days prior to any earth disturbing activities.
In granting this approval the Division of Safety&Buildings reserves the right to require changes or additions should
conditions arise making them necessary for code compliance.As per state stats 101.12(2),nothing in this review
shall relieve the designer of the responsibility for designing a safe building,structure,or component.
Inquiries concerning this correspondence may be made to me at the telephone number listed below,or at the address
on this letterhead.
Sincerely, Fee Required$ 100.00
Fee Received$ 100.00
Balance Due $ 0.00
Leroy GJJsky,Was ater Specialist
Integrated Services Bureau WSMART code::7633
(715)726-2544 Office
(715)726-2549 Fax
Ijansky@commerce.state.wi.us
5
�FcF
Interpretive Determination Report 49 %, 2 8 Fa
qFo y ?p06
For an A+0" Mound Septic System �llkoz
NHS
On the
Stan Thompson property
E 1/2, SE 1/4, SE 1/4, Section 29, T 29 N, R 15 W
Town of Springfield
St. Croix County, Wisconsin
Submitted by
Henry F. Gro e, CSTM 222774
Certified Soil Testing, LLC
E. 4366 353rd Ave.
Menomonie, WI 54751
715-233-0398
P.OA.T.S.
Conditionally
VED
DEPARTMENT orCOMIMERCD
E
DIVIS�O OF SAFETY AND BUILDINGS
SEE CO ESPON NCE
14)0 7 83
i
Contents
Page
Introduction 1
Methods 1
Local Hydrology 2
Geomorphology 3
Soil Disturbance and Hydraulic Modification 3
Landscape Position 3
Soil Series 4
Data 5
Conclusions/Recommendations 6
Attachments
Soil Evaluation Report, Henry F. Grote
Topographic Detail, SE 1/4, SE 1/4, Sect. 29, T 29 N, R 15 W
Soil Series Map, Soil Survey of St. Croix County
Aerial Photograph of parcel
i
Interpretive Determination Report for an A+O" Mound Septic System on
the Stan Thompson Property
Introduction
On February 2, 2006 Henry F. Grote, CSTM 222774, Certified Soil Testing, conducted a Soil
and Site Evaluation on the Stan Thompson property for the purpose of establishing the potential
for an onsite wastewater dispersal system. These evaluations were conducted on the 19.83 acre
parcel described as part of the E %of the SE '/4 of the SE '/4 plus a small portion of the E '/2 of the
NE '/4 of the SE '/a of Section 29, T 29 N, R 15 W, Town of Springfield, St. Croix County,
Wisconsin. The parcel is located just north of USHW 12 and extends north to border the right of
way of the Chicago and Northwestern Railroad.
Methods
Soil color, texture, structure, consistence and redoximorphic features have been evaluated and
reported on the accompanying Soil Evaluation Report in accordance with guidelines under
Comm 85 of the Wisconsin Administrative Code. Pertinent information has been abstracted
from the Soil Survey of St. Croix County, Wisconsin. Topographic detail has been obtained
from the DeLorme 3-1) TopoQuads CD mapping release. Information has also been obtained
from the St. Croix County Land Information web site.
Field investigation included nine backhoe pits with soil profiles documented on the attached Soil
Evaluation Report. Rod and transit elevations were obtained at pertinent pit locations, along a
tentative design contour line, and over twenty foot grid intervals to allow the insertion of
nominal contour lines on the detailed plot plan. Previous' work on the south side of USHW 12
Henry Grote, Stan&Mabel Thompson, 1/5/02 report for NE-NE-32-29-15W,and Jansky inspection report of
April 30,2002. Henry Grote, Stan Thompson, 11/7/05 report for the NW-NE-32-29-15W,approved Interpretive
Determination, Trans# 1231007,and approved mound,Trans# 1230798,both 1/20/06.
showed soils which lacked A+4" and resulted in a two state on-site investigations which
confirmed suitability for A+0 mounds.2
Local Hydrology
The major local hydrology input is from.annual precipitation. This is estimated at from 29.57
inches to 31.5 inches.4 Surface runoff is an additional input most significantly during heavy
precipitation events. The proposed mound site and upslope land use is currently weedy sod. The
upslope ground extends about 300 feet south of the proposed system area and can be expected to
adsorb significant volumes of precipitation during the growing season when most of the
precipitation occurs. Upslope topography then is almost flat to slightly downslope from north of
the Highway 12 right of way. Larger scale upslope topography shows a gradual rise to the east,
southeast for about 1/8 mile. Due to the convex, nose slope orientation of the proposed site,
upslope toe landscaping to divert surface runoff to the west and southeast is the preferred method
of minimizing adverse impact on mound performance due to excessive surface drainage. Dense
glacial till beneath a shallow loess cap provides significant groundwater protection from possible
surface contamination.
Water outputs consist of surface runoff, soil infiltration, and evapotranspiration. Surface runoff
will generally be minimal unless frozen soil conditions or excessively heavy and prolonged
precipitation occurs. Soil infiltration is described as "somewhat poorly drained" for typical
Skyberg series soils.5 This is reasonable for the observed moderately and weakly structured silt
loam A horizons; the B horizons are uniformly weakly structured with textures varying from
sandy loams to silt loams in the proposed system area. Restrictive, massive, sandy loam and
sandy clay loam till units were observed at depths below 20 to 24 inches. Slower infiltration is
anticipated during wet spring periods when the soils are closer to field capacity and slow to dry.
The underlying massive till unit will be significantly restrictive to vertical infiltration. Lateral
' Customer has not requested preparation and submittal of interpretive report for the NE '/,of the NE '/<, Sect. 32,
but approval of the interpretive report has been obtained for the northwest corner of the NW'/<of the NE '/4, Sec. 32.
' Soil Survey of St. Croix County,United States Department of Agriculture,Soil Conservation Service,July 1987,p
139. (River Falls, WI data)
4 Wisconsin Average Annual Precipitation(1961-1990),www.crh.noaa.gov/mkx/data/wipcpn.gif
5 Soil Survey of St.Croix County,United States Department of Agriculture,Soil Conservation Service,July 1987,p.
57.
2
movement of water through more permeable upper horizons will be facilitated by the 2.9 to 7.0
percent cross slopes below a proposed 100.0 contour design line. Heavy and prolonged
precipitation - 2.5 inches in 24 hours; described as once in two years6 - will also slow infiltration
as the A horizons near field capacity. Evapotranspiration will be a significant factor during the
growing season but of no value during the winter season
Geomorphology
Limestone bedrock underlies most of St. Croix County. Typically the limestone is sandwiched
between layers of sandstone which is then overlaid with glacial till forming the principal soil
parent material. Rockian till, correlated with the first sub-stage of Wisconsin glaciation, is the
parent till for Skyberg soils. The Rockian till is overlain by a thin concurrent and/or post-
glaciation loess cap.
Soil Disturbance and Hydraulic Modification
The proposed mound location is uniform topography. Land use was weedy sod in 2005; the site
was likely plowed in early 2005 judging from the 2005 dated aerial photograph but crops were
apparently not planted. Hydraulic conductivity of the solum can—and should be—improved by
deep chisel plowing to a depth of at least sixteen inches.
Landscape Position
The landscape position of the proposed mound site is on the northern slope near the midpoint
point of the west end of a glacial ground moraine. The proposed location, along the 100.0
contour, is located on mapped Skyberg soils in a classic "nose" landscape, convex orientation.
The 100.0 contour is located on a north slope with small scale cross slopes generally north at 2.9
to 7.0% although the general slope of the moraine is to the west. The moraine rises to the east
southeast to a nominal elevation of 1280 MSL, about '/a mile south of Highway 12,just east of
6 Soil Survey of St. Croix County,United States Department of Agriculture,Soil Conservation Service,July 1987,p
140.
3
2901" St., approximately '/4 mile southeast of the 100.0 contour which is at a nominal elevation
of 1220 MSL. The moraine slopes from just above the 100.0 contour about 1/8 of a mile to the
northwest; natural surface drainage is small scale to the north, northeast, and northwest of the
100.0 contour and large scale about 600 feet northwest to a surface drainage feature which trends
g g
north about '/4 mile, and into a significant tributary to the Eau Galle River at a nominal elevation
of 1181 MSL; the tributary then flows west to join the Eau Galle River at a nominal elevation of
1153 MSL about 3/4 mile to the west.
Northeast of the proposed 100.0 contour/design line is a shallow surface drainage feature which
drains north,then northwest joining the above described surface drainage feature south of the
railroad right of way in the SE 1/4 of the NW-SE quarter-quarter. The centerline of the shallow
drainage feature is located approximately 100 feet northeast of the east benchmark of the
proposed 100.0 contour/design line.
No structures are down-slope to interfere with lateral movement of effluent. The 2.9 to 7.0
percent slopes at the proposed mound site will increase the hydraulic gradient and encourage
lateral movement of treated effluent. Upslope surface runoff can—and should—be minimized
by landscaping fill up-slope of the system. The upslope toe of the proposed system should be
extended with additional fill such that surface runoff is diverted to the east then to the north
around the east end of the mound.
The small scale cross slopes at the proposed mound location combined with the available length
are significant reasons to favor this location. Enhanced lateral effluent movement plus low linear
loading are excellent indicators of good system performance for an A+0 mound system. Pits B-1
and B-2 are located on more level topography while pits B-7 to B-9 have somewhat less, but
comparable, topographic slopes but feature less advantageous contours and a poor general lot
location.
Soil Series
The Soil Survey of St. Croix County maps the site soils as Skyberg Series with a tongue shaped
inclusion of Auburndale Series running slightly west of north from the shallow drainage feature
4
located near the center of the parcel. These soils are respectively described as "somewhat poorly
drained" (Skyberg)? and"poorly drained" (Auburndale)$. Field observations of soil pits are in
i
reasonable agreement with these mappings. Both series are Alfisols; Families are Fine-loamy
mixed, mesic (Skyberg) and Fine-silty, mixed, frigid (Auburndale); subgroups are Udollic
Ochraqualfs (Skyberg) and Typic Glossaqualfs (Auburndale).
Field observations show redoximorphic features absent to depths of 9-11 inches in pits
representative of the proposed mound site. The B horizon redoximorphic features in the system
area were few and faint or distinct in two pits below the observed A horizons. Periodic soil
saturation is indicated below 9 inches by these observations. The silt loam A horizon in one pit,
B-3, was noted as being gritty with sand and the subsoil in pit B-3 textured as loamy sand. The
proposed site is preferred over other possibilities, in part, due to the improved permeability
caused by increased sand content. Sand rich Amery Series soils are located on the north slopes of
a north south drainage divide whose crest is about 1/8 mile south of USHW 12. Erosional
deposition of sandy soils downslope to the north possibly accounts for their presence in Skyberg
mapped soils which do not show sand in typical profiles. Auburndale soil profiles do describe
sandy loam subsoils.
These profiles are a significant reason for choosing this area over possible sites explored by the
six other soil pits at differing topographic locations. The Amery soils are described as formed in
areas of pitted drift which are typically formed by the third sub-stage of Wisconsin glaciation,
the Cary till. It is possible that these sandy subsoils were formed by the influence of this later
glaciation sub-stage over the older Rockian sub-stage. More likely they were formed by
erosional deposition from the upslope mapped Amery soils. In either case the better drained,
sandy subsoils add weight to the conclusion that a successful A+0 mound can be installed in this
area.
Soil Survey of St. Croix County,United States Department of Agriculture,Soil Conservation Service,July 1987,
57.
Soil Survey of St. Croix County,United States Department of Agriculture,Soil Conservation Service,July 1987,
p. 16.
5
Data
The soil and site evaluation report and data are similar to other sites which have received
Department of Commerce approvals for A+0"mounds with a minimum of six inches of
seasonally unsaturated soils in the upper A horizon. Examples include the Lisa Mosentine site,
ID #636612, Anthony Ludwig site, ID#634143, Jon Mentink site, ID#787909, Tim Holldorf
site, ID # 849265, and Karen& Keith Anderson site, ID #639788.
Conclusions/Recommendations
1. Seasonally saturated soil conditions do not occur in the upper 9 to 11 inches of the soil
profile as indicated by the absence of redoximorphic features.
2. The A horizons in the proposed system area are Munsell colors l OYR 3/3 to IOYR 3/2
which indicates an organic matter content nominally of 25 g/kg in the range of 20-30
g/kg or 2.5 percent.9 This level of organic matter is indicative of relatively good drainage
and aerobic conditions.
3. The relatively low level of organic matter indicated by the Munsell value of 3 would
facilitate observation of high chroma redoximorphic features in the A horizon. The
general lack of observation of these features in the A horizons is strengthened by the low
organic matter content which lends further evidence to a conclusion that at least nine
inches of soil is present which is not periodically saturated for more than seven days,
while;
4. Site conditions did allow the observation of redoximorphic features in a down-slope pit
(pit 6) located about 100 feet below the 100.0 contour, at an elevation of 94.4, which
showed an organic rich A horizon, 7.5YR 3/1 Munsell, with few, fine faint observed
redoximorphic features in the lower four inches; which
5. Adds weight to the conclusion that at least nine inches of suitable soil are found at the
proposed 100.0 elevation.
I
I
i
9 Tyler presentation, Reading Shallow Soil Saturation, 10/15/04,Ashland UW Ag Research Station.
6
6. No hydric soil indicators10 are present in the observed system area soil pits; this
conclusion is based on particularly careful review of the indicators for All Soils and
Loamy and Clayey Soils; however
7. Pit 6, about 100 feet down-slope and northwest of east benchmark of the proposed 100.0
contour/design line, does approach hydric indictor F6, Redox Dark Surface, with a matrix
value of 3 and a chroma of 1; this pit is located in the shallow surface drainage feature.
Hydric indicator F6 requires distinct to prominent redoximorphic features and the
observed A horizon features were noted as faint.
8. System area pits demonstrate root penetration to depths of 16-27 inches; such depths are
not expected in soils which remain saturated for significant time periods.
9. The small scale cross slopes of 2.9%to 7.0% indicate excellent potential for lateral
movement of effluent down-slope into the more permeable upper soil horizons and away
from the mound system without surface ponding.
10. The available length which allows for a 120 foot long rock cell gives a low linear loading
rate of 3.75 gallons per day per foot which enhances the ability of the system to allow
effluent to infiltrate the in situ soils.
11. The site is acceptable for a mound septic system with a minimum of six inches of
unsaturated soil for treatment and dispersal of treated wastewater effluent as allowed by
Comm 83.44(3)(b)l. The observed nine to eleven inches of redoximorphic-free natural
soil will allow treated effluent to be assimilated into the subsurface without ponding on
the ground surface.
12. No primary or secondary, restrictive platy structures were noted in any of the nine pit
profiles at various locations on the parcel,however such structures are not uncommon in
these silt loam soils due either to natural deposition processes or induced by farm
equipment traffic, therefore:
13. Site preparation requires mowing and removal of as much vegetation as possible
followed by deep chisel plowing to at least a 16 inch depth.
14. Additional fill landscaping soil shall be added to the upslope area of the mound structure
filling the concave, upslope area between the west and east system ends. The final, settled
10 Field Indicators of Hydric Soils in the United States,A Guide for Identifying and Delineating Hydric Soils,
Version 4.0(March 1998),p5 ff, 13 ff,&20 ff.;p 16 for F6 indicator.
7
slope of this landscape fill shall be at least 2%to the east such that any near-system
surface drainage will be diverted around the east end to the north.
15. Mound construction requires 2.5 feet of ASTM C-33 sand lift immediately placed on the
freshly plowed ground surface. Construction must take place under relatively dry
conditions. This depth of sand creates an effective sand filter and can be expected to
produce a treated effluent with less than 30 mg/L of both BOD5 and TSS and fecal
coliform concentrations of<10,000 cfu/100mL.
16. Site observations indicate that a minimum of 2.25 feet of sand fill is required; however
2.5 feet is recommended to ensure a conservative design and maximize system longevity.
17. The rock cell in the mound structure shall be 3.75' by 120 for a linear loading rate of 3.75
gallons per day per foot for a three bedroom residence.
18. A horizon silt loam soils are uniformly moderate structure throughout the A-1 horizons in
two pits and throughout the A horizon in a third pit representative of the proposed system
area, which;
19. Indicates the potential for soil application rates as high as 0.6 gallons per day per square
foot for untreated effluent in the upper 4-11 inches of soils, while;
20. The A-2 horizons and upper B horizons silt loam soils exhibit weak structure to depths of
20-24 inches indicating soil application rates as high as 0.4 gallons per day per square
foot for untreated effluent to depths of 20-24 inches, but;
21. The sand basal area loading must be a maximum of 0.2 gallons per day per square foot
which can be accomplished by extending the sand toe to 15.0 feet below the lower edge
of the rock cell giving a total system basal area loading rate of 0.16 gallons per day per
square foot. This will ensure a conservative design for maximum system performance.
22. The system management plan must provide adequate maintenance information to
maximize the system longevity.
Final authority for this site's approval rests with the appropriate regulatory authorities, the
Wisconsin Department of Commerce and the St. Croix County Zoning Office. This report,
conclusions and recommendations are the professional opinion of Henry F. Grote, CSTM
222774.
8
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