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HomeMy WebLinkAbout008-1044-30-001 (2)Wisconsin Department of Safety and Professional Services Division of Industry Services SOIL EVALUATION REPORT In accordance with SPS 385, Wis. Adm. Code County Attach complete site plan on paper not less than 8 1/2 x 11 inches in size. Plan must include, ST Croix but not limited to: vertical and horizontal reference point (BM), direction and percent slope, Parcel I.D. scale or dimensions, north arrow, and location and distance to nearest road. 008-1044-30-001 Please print all information. Rev V =rsonal information you provide may be used for seconds purposes Phvac Law s. 15.040 m Page 1 off. ( V Lcj Property Owner Property Location: Brian Gedatus (Buyer) Dennis Duckworth (Seller) Govt. Lot: NE '/4 SW Y, S 15 T 28 N R 16 W Property Address Lot # Block # Subd. Name or CSM# TBD CTY RD N City State Zip Code Phone Number ❑ City ❑ Village ❑■ Town Nearest Road Woodville IWI 54028 1 (715) 556-2985 1 1 Eau Galle CTY RD N ❑■ New Construction Use: ❑■ Residential/Number of bedrooms 3 Code derived design flow rate 450 GPD L-zo ❑ Replacement ❑ Public or commercial — Describe: ���� follow ('Cle�`rCf••tr,�,5-` Parent material Loamy drift and/or loess over loamy till (Santiago sil) Floodplain elevation if applicable NA ft. General comments and recommendations: Site is all A+0". Holding tank only. Site is good candidate for soil saturation determination (interpretive determination report) 1 � (pjq - LF = 0" (Redoximorphic features) '1 1 { - 1❑ Boring # ❑ Boring ❑■ Pit Ground surface elev. 98.00 ft. Depth to limiting factor 0 in. Soil Anolicatinn Rate Horizon Depth In. Dominant Color Munsell Redox Description Qu. Az. Cont. Color Texture Structure Gr. Sz. Sh. Consistence Boundary Roots GPD/Ft' *Eff#1 *Eff#2 1 0-9 10YR 3/3 - sil 2f-msbk mfr cs 2m-vf 0.6 0.8 2 9-17 10YR 4/4 f1f 10YR 5/8 & 10YR 6/2 sil 2mabk mfr gs 1 m-vf 0.6 0.8 3 17-26 7.5YR 4/4 c2d 7.5YR 5/8 & 10YR 5/2 sl 1 msbk mvfr gs 1 m-vf 0.4 0.7 4 26-40 7.5YR 4/4 m2p 5YR 5/8 & 7.5YR 512 sl 1 msbk-Om mfi - 0.2 0.6 (A+O„) ❑❑ Boring 2 Boring # ❑■ Pit Ground surface elev. 100.00 ft. Depth to limiting factor 0 in. Soil Aoolir•.ation Rate Horizon Depth In. Dominant Color Munsell Redox Description Qu. Az. Cont. Color Texture Structure Gr. Sz. Sh. Consistence Boundary Roots GPD/Ft' *Eff#1 *Eff#2 1 0-10 10YR 3/3 - sil 2f-msbk mfr cs 2m-vf 0.6 0.8 2 10-14 10YR 4/4 f2d 10YR 4/6 & 10YR 6/1 1 2fabk mfr gs 1 f-vf 0.6 0.8 3 14-27 7.5YR 4/4 c2d 7.5YR 5/8 & 10YR 5/2 sl 1 msbk mfr gs 1 f-vf 0.4 0.7 4 27-41 7.5YR 4/4 m2p 5YR 5/8 & 7.5YR 5/2 SI 1 mabk-Om mfi - 0.2 0.6 (A+0") *Water filled goring to 29" epth during obse tion window �3:tm�:s��iaer�ussca�yl�miFrr.��.xa�euriwl�mi�3arma���eer�us�enr�rl�m��rr.��a►aa�cn�rvm�� CST Name (Please Print) Signatur CST Number Ryan Bechel 1330832 Address Date Fvaf,14Cn Conducted Telephone Number W11932 560TH AVE, Prescott, WI 54021 04/13/23 (651) 327-0074 Jtsu-?i mul (KU4Il b) F3 ] Boring # ❑ Boring ❑■ Pit Ground surface elev. 98.00 ft. Depth to limiting factor 0 in. Rnil Annliratinn RatP Horizon Depth In. Dominant Color Munsell Redox Description Qu. Az. Cont. Color Texture Structure Gr. Sz. Sh. Consistence Boundary Roots GPD/Ftz *Eff#1 *Eff#2 1 0-9 1 OYR 3/3 - sil 2f-msbk mfr cs 2m-vf 0.6 0.8 2 9-17 1 OYR 4/4 f2f 10YR 5/8 & 10YR 6/1 sil 2f-mabk mfr gs 1 m-vf 0.6 0.8 3 17-25 7.5YR 4/4 c2d 7.5YR 5/8 & 10YR 5/2 sl 1 msbk mvfr gs 1 m-vf 0.4 0.7 4 25-38 7.5YR 4/4 m2p 5YR 518 & 7.5YR 5/2 sl Om mfi - - 0.2 0.6 (A+O") 4❑ Boring # ❑ Boring ❑■ Pit Ground surface elev. 105.55 ft Depth to limiting factor 0 in. Rnil Annliratinn Rate Horizon Depth In. Dominant Color Munsell Redox Description Qu. Az. Cont. Color Texture Structure Gr. Sz. Sh. Consistence Boundary Roots GPD/Fe *Eff#1 *Eff#2 1 0-8 1 OYR 313 - sil 2f-msbk mfr cs 2m-vf 0.6 0.8 2 8-15 1 OYR 4/4 f2f 10YR 5/8 & 10YR 6/1 sil 2f-mabk mfr gs 1 m-vf 0.6 0.8 3 15-23 7.5YR 4/4 c2d 7.5YR 5/8 & 10YR 512 sl 1 msbk mvfr gs 1 m-vf 0.4 0.7 4 23-40 7.5YR 4/4 m2p 5YR 518 & 7.5YR 5/2 sl Om mfi - - 0.2 0.6 *Water filled bc ring to 29" de th during observatio window 5] Boring # ❑ Boring ❑■ Pit Ground surface elev. 94.20 ft. Depth to limiting factor 0 in. Rnil Annliratinn Rate Horizon Depth In. Dominant Color Munsell Redox Description Qu. Az. Cont. Color Texture Structure Gr. Sz. Sh. Consistence Boundary Roots GPD/Ft2 *Eff#1 'E1#2 1 0-9 10YR 3/3 - sil 2f-msbk mfr cs 2m-vf 0.6 0.8 2 9-16 1 OYR 4/4 f1f 10YR 5/8 & 10YR 6/1 sil 2fabk mfr gs 1 m-vf 0.6 0.8 3 16-23 7.5YR 4/4 c2d 7.5YR 5/8 & 10YR 5/2 sl 1 msbk mfr gs 1 f-vf 0.4 0.7 4 23-37 1 7.5YR 4/4 m2p 5YR 5/8 & 7.5YR 5/2 sl Om mfi - - 0.2 1 0.6 (A+O") *Water filled bi iring to 22" de th during observatio window * Effluent #1 = BOD, > 30 5 220 mg/L and TSS > 30 :5 150 mg/L * Effluent #2 = BOD, > 30 5 220 mg/L and TSS > 30 5 150 mg/L F6 ] Boring # ❑ Boring ❑■ Pit Ground surface elev. 99.50 ft. Depth to limiting factor 0 in. Soil Annlirafinn Rat. Horizon Depth In. Dominant Color Munsell Redox Description Qu. Az. Cont. Color Texture Structure Gr. Sz. Sh. Consistence Boundary Roots GPD/Ft2 *Eff#1 7*Eff#2 1 0-9 10YR 313 - sil 1f-msbk mfr cs 2c-vf 0.4c 0.6 2 9-15 10YR 4/3 f1f 10YR 5/8 & 10YR 6/1 sil-I 2fabk mfr gs 1c-vf 0.6 0.8 3 15-26 7.5YR 4/4 c2d 7.5YR 5/8 & 10YR 5/2 sl 1 msbk mfr gs 1 c-vf 0.4 0.7 4 26-45 7.5YR 4/4 m2p 5YR 5/8 & 7.5YR 5/2 sl Om mfi - - 0.2 0.6 (A+0") ❑7 Boring # ❑ Boring ❑■ Pit Ground surface elev. 98.20 ft. Depth to limiting factor 0 in. Snil Annlicatinn Rat. Horizon Depth In. Dominant Color Munsell Redox Description Qu. Az. Cont. Color Texture Structure Gr. Sz. Sh. Consistence Boundary Roots GPD/Ft2 *Eff#1 *Eff#2 1 0-8 10YR 3/3 - sil 2f-msbk mfr cs 2m-vf 0.6 0.8 2 8-16 1 OYR 4/4 fif 10YR 5/8 & 10YR 6/1 sil 2fabk mfr gs 1 m-vf 0.6 0.8 3 16-25 7.5YR 4/4 c2d 7.5YR 518 & 10YR 5/2 sl 1 msbk mfr gs - 0.4 0.7 4 25-40 7.5YR 4/4 m2p 5YR 5/8 & 7.5YR 5/2 sl 1 msbk-Om mfi - - 0.2 0.6 (A+O") F g Boring # ❑ Boring ❑� Pit Ground surface elev. 106.50 ft Depth to limiting factor 0 in. Snil Annliratinn Rat. Horizon Depth In. Dominant Color Munsell Redox Description Qu. Az. Cont. Color Texture Structure Gr. Sz. Sh. Consistence Boundary Roots GPD/Ft2 *Eff#1 *Eff#2 1 0-9 10YR 3/3 f1f 7.5YR 5/8 sil 2f-msbk mfr cs 2m-vf 0.6 0.8 2 9-17 10YR 4/4 ftf 10YR 518 & 10YR 6/1 sil 2mabk mfr gs 1 m-vf 0.6 0.8 3 17-26 7.5YR 4/4 c2d 7.5YR 5/8 & 10YR 5/2 sl 1 msbk mvfr gs 1 m-vf 0.4 0.7 4 26-40 7.5YR 4/4 m2p 5YR 5/8 & 7.5YR 5/2 sl 1 msbk-Om mfi - - 0.2 0.6 (A+O") *Water filled boring to 27" depth during observatio window * Effluent #1 = BOD, > 30 s 220 mg/L and TSS > 30 s 150 mg/L * Effluent #2 = BOD, > 30 s 220 mg/L and TSS > 30 s 150 mg/L Wisconsin Department of Safety and Professional Services Division of Industry Services 4822 Madison Yards Way PO Box 7302 Madison, WI 53707 April 26, 2023 CUST ID NO.: 1330832 RYAN GARY BECHEL W 11932 560TH AVE PRESCOTT, WI 54021 CONDITIONAL APPROVAL PLAN APPROVAL EXPIRES: NA MUNICIPALITY: TOWN OF EAU GALLE ST. CROIX COUNTY SITE: BRIAN GEDATUS TBD CTY RD N WOODVILLE, WI 54028 NE 1/4 SW 1/4 S15 T28N R16W TOWN OF EAU GALLE FOR: SOIL SATURATION DETERMINATION Phone:608-266-2112 Web: htto://dsps.wi.povv Email . dsos ciavisconsineov :- Tony Evers, Governor Dan Hereth, Secretary Identification Numbers Plan Review No.: PWTS-042300026-SSD Application No.: DIS-042318522 Site ID No.: SIT-114949 Please refer to all identification numbers in each correspondence with the Department. CONDITIONALLY APPROVED DEPT OF SAFETY AND PROFESSIONAL SERVICES DIVISION OF INDUSTRY SERVICES SEE CO E5PONDENCE The submittal described above has been reviewed for conformance with applicable Wisconsin Administrative Codes and Wisconsin Statutes. The submittal has been CONDITIONALLY APPROVED. This system is to be constructed and located in accordance with the enclosed approved plans and with any component manual(s) referenced above. 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: • Approval is hereby granted pursuant to s. SPS 385.60(2), Wis .Adm. Code, to estimate the depth of seasonal soil saturation based on an interpretive determination process completed by Ryan Bechel, Certified Soil Tester (CST) and his recommendations. • This approval is limited to the soil characteristics within the tested area. This approval is based upon best management practices and does not warranty the functioning of the system. Water conservation, wastewater disposal practice and system maintenance will aid in the longevity of the system. • On -site visit was conducted by CeCe Rudnicki, DSPS on April 2.5, 2023. • The estimated highest level of prolonged soil saturation approved under this determination is 6 inches below grade. At least 30 inches of sand lift on top of 6 inches of unsaturated, in -situ soil is required for adequate treatment and dispersal. The mound shall be installed at a 100' contour and designed with <10ft2 per orifice. • The basal soil application rate for the mound shall be 0.2 gpd/sf, and the linear loading rate 4.5 gpd/ft. • Prior to construction of the dispersal area, check the moisture content of the soil to a depth of 8 inches. Smearing and compacting of wet soil will result in reducing the infiltration capacity of the soil. Proper soil moisture content can be determined by rolling a soil sample between the hands. If it rolls into a 1/4- inch wire, the site is too wet to prepare. If it crumbles, site preparation can proceed. If the site is too wet to prepare, do not proceed until it dries. • Chisel plowing to a depth of 12 inches immediately prior to sand placement is required to improve vertical water movement into the soil solum. • 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. • 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. • 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. • 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. 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. All permits required by the state or the local municipality shall be obtained prior to commencement of construction/installation/operation. In granting this approval the Division of Industry Services 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. The above addressee shall provide a copy of this letter and the POWTS management plan to the owner and any others who are responsible for the installation, operation or maintenance of the POWTS. Sincerely, Elizabeth Rudnicki Division of Industry Services Phone: 608-400-3186 Email: elizabeth.rudnicki@wisconsin.gov Fee Required: $240.00 Fee Received: $240.00 Balance Due: $0.00 Refund Expected: $0.00 ADVANCED E N V I R O N M E N TA L Property Owner: Brian Gedatus Date: 04/20/23 Site Address: TBD CTY RD N, Woodville, WI 54028 SOIL INTERPRETIVE DETERMINATION REPORT CONDITIONALLY Page: 1 Soil Test APPROVED DEPT OF SAFETY AND PROFESSIONAL SERVICES Page: 2 Soil Test DIVISION OF INDUSTRY SERVICES Page: 3 4 Soil Test Soil Test e - tPage: Page: 5 SEE CO ESPONDENCE Soil Test Page: 6 Survey Page: 7 Interpretive Determination Report Page: 8 Interpretive Determination Report Page: 9 Interpretive Determination Report Page: 10 Interpretive Determination Report Page: 11-23 Attachments 1-6 Page: ``\``` C Page : .`` `�� ;`�`r RYAN G. Page: — BECHEL D-2263-7 RED WING MN Designer Signature: Date: 4/20/2023 ADVANCED ENVIRONMENTAL LLC 371 Cannon View DR - Red Wing, MN 55066 (651) 327-0074 Designer. Ryan Bechel Certified Soil Tester. 1330832 © 2022 Advanced Environmental LLC. ADVANCED 'All property lines not O Benchmark drawn are >100ft from SYSTEM NOTES Septic Tank: Designer of Engineering Systems: D 2263-7 All rights reserved. A system A!!� Soil Boring -1/d + + + + + + + + l/d l/d + + + + + + + + + + + + + 99.50`L — L _ J_ . -t_ ..J� ­6 + + + I� Tree BM2 = 102.00 106.50 Pump Tank: + + +/ \ line Top nail in 22" Ash tree + + + /' (14" above grade) + + + + + +LU + 798 Soil Treatment Area: is 'A 0'. Holding lank Site is + ��� 20 -Site all only. good candidate for soil saturation determination interpretive (soil +P + !� determination report) + + OQC� -Depth to restriction 0' (Redoximorphic features) -Dontour=100.00' + + il� 94.20 + + v �+ + **Soil test for lot split; no + + + + o home location proposed** 0 011 D0OO 0 + + -� � C6 Distribution: 3Wo + + \ �► + + + + + + - BM1 = 100.00 1 r + + Top nail in 10" Hickory tree (23" above grade) LOCATION MAP (not to seals) ➢m C' RD +V) + � N WWIc,,, Lrt] + **Well to be located >50ft Road—� 2433 crr RD N +rY + i from soil treatment area & m +� >25ft from tanks** SITE + + ++++� + + + I + PREPARED FOR: + + to Brian Gedatus Site Address: + +y j- ` �\ \ TBD CTY RD N Woodville, WI 54028 O + + SCALF PID: 008-1044-30-001 ±20.0 Ac. + i Legal: NE + + 0 30 60 S151T 8N R16W + i Town of Eau Galle Certlfled Staterront Thb system has been designed orrd waluabd In accordance elth Stets and Load oodas. The soil txeatrtrnt area must npnain protec from dietubance and/or compaction beta and after construction, Scale: 1" = 60' Date: 4/13/23 No MN MNff IS WADE THAT THS 9MM WILL CONnMJE 70 n1NCI10N IKXnNT1XY. 9rretwn must be properly mmntalned. Reaferr your 9yatern'e"for IrKmnonm on proW core «d m irdenonciii. St Croix County, WI Legend Flood Hazard Areas Mock Number Dimensions Document Easement Lot ` Site Address Tax Parcels Towns Cities Villages ._.j Sections St Crook Co Otter Counties Lakes and Rivers Rivers and Streams Interstates US Highways State Highways —' County Highways Local Roads Rustic Roads Ramps Road Right of Way Railroads Contours) OR Contours lV Aerial Ph f (2020)(Ccor) 0 100 200 300R DISCLAIMER. This map is notguaranteed to be accurate, coned, current, or complete and conclusions drawn are the responsibility of the user. CERTIFIED SURVEY MAP PART OF THE SOUTHEAST QUARTER OF THE NORTHWEST QUARTER, PART OF THE NORTHEAST QUARTER OF THE SOUTHWEST QUARTER AND PART OF THE SOUTHEAST QUARTER OF THE SOUTHWEST QUARTER OF SECTION 15, TOWNSHIP 28 NORTH, RANGE 16 WEST, TOWN OF EAU GALLE, ST. CROIX COUNTY, WISCONSIN. County Trunk _H!�hw0y "N _ 'o U_NPLATTED — "=- Each parcel on this map is subject to State and LANDS $ County laws, rules and regulations(i.e. wetlands, M minimum lot size, access to parcels, density west 'n limitations, etc.). Before purchasing or developing of SE IINW �'' any parcel, contact the Community Development / v i3 o Department and Town Board for advice. West 1/4 Corner f Section 15-28-16 c Survey Mark Nail 15 I S87'13'49"E 1315.45' west line/ of NE/SW d e.j N N Y t0 rn LOT 1_ CSM 2/580 (S87'29'44"E) S87'13'49"E east —west 1/4 line LOT 1 871,475 sq.ft. 20.000 acres 8' LOT _2'_ SM 2/580 1290.68' 1315, 45' east line of NE/SW North 1/4 Corner Section 15-28-16 1.25' Iron Pipe B J 3 r- la) 11O UNPLATTED oLO K) LANDS O I N S87'13'49"E �'s 2658.84' �i East 1/4 Corner Section 15-28-16 Survey Mark Nail U_NPLATTED LANDS 3 Completion Date 00 April 2023 N S 732,575 sq.ft. 16.818 acres PREPARED FOR: Brian & Sheila Gedatus south line 2474 30th Avenue of NE/SW Woodville, WI 54028 715.04' N W— SE N N8773'37"W I SW —SE J 41' �.vi ca 37"W ur) UNPLATTED Line Data MIN LANDS UNPLATTED L1 I S82-36-11'E 24.93' I '0 LANDS L2 I S00'29'20"W 132.09' J N DRAFTED BY: r- Joel A. Brandt JB SCALE: 1" = 300' South 1/4 Corner Surveying LLC W_ f', Section 15-28-16 0' 300' 600' Aluminum Cap I North is referenced to the North -South Quarter Line of Section 15-28-16, which bears S00°28'57"W (St. Croix County Grid System) U_NPLATTED LANDS w 0 N 01 0 0 0, z � Go N N87'23'37'W 430.00' L2T 1. csM to 32/7205 O� ------ o 32nd Avenue0 =------------- ---- 'j access easement ---- �_____ ofrecord LOT 2 LEGEND 8..... Found Government Corner (Corner Verified) o...... Set 3/4" x 18" Iron Rebar weighing 1.502 lbs./foot ....... Found 3/4" Iron Rebar e._.,., Found 1" Iron Pipe (0.00')..,.., Recorded Data Sheet 1 of 2 Sheets SOIL INTERPRETIVE DETERMINATION REPORT Prepared for: Brian Gedatus Site Location: TBD CTY RD N, Woodville, WI 54028 Legal: NE 1/4 SW 1/4 S15 T28N R16W Town of Eau Galle; ST Croix County Evaluation Date: 4/13/23 INTRODUCTION: On 4/13/2023 a soil and site evaluation was conducted at the above -described property to locate a suitable area for a new Private Onsite Wastewater Treatment System (POWTS). The subject property consists of 36.82 acres of pasture, farmland, and woods. The owner, Brian Gedatus, is proposing to subdivide the property into two lots. The southerly lot (Lot 02) had a soil test completed by Advanced Environmental in November of 2022 which found a suitable spot for a mound system. The northerly lot (Lot 01) requires a suitable area for a soil treatment system to be split off as a "buildable" parcel. A series of 8 soil pits were excavated and the soil conditions were described according to the requirements of SPS 385.20 and SPS 385.30. None of the observed test pits demonstrated a clear four - inch (or greater) subsoil horizon (B-Horizon) below the topsoil (A -horizon) that lacked the presence of redoximorphic features. Per SPS 385.30.2(b), Unless otherwise determined under s. SPS 385.60, the highest elevation of seasonal soil saturation shall be the ground surface where redoximorphic features are present within 4 inches of any of the following: 1. An A horizon that extends to the ground surface. 2. The lower boundary of overlying fill material where no buried A horizon exists. 3. An A horizon buried by overlying fill material The purpose of this soil Interpretive Determination Report is to review geologic, hydrologic, and topographic site conditions to determine current conditions of periodic soil saturation and assess their effect upon the potential operation of a POWTS soil treatment area. LOCAL HYDROLOGY AND SURFACE WATER FLOW: The property is located within the Lousy Creek -Eau Galle River watershed, which is a sub -watershed of the Eau Galle River major watershed. This area drains primarily east via wetlands, road ditches, natural drainage ways, and overland flow eventually reaching the Eau Galle River. The test area is located on the summit of a ground moraine and is aided by a gentle rolling slope that ranges from 3-5% grade. The slope is convex -linear in shape near the apex of the hill, transitions to linear -linear near the center of the test area, then becomes slightly convex -linear downhill and to the east. Except for the northwest property corner, on -site drainage flows east towards the low-lying woodlands along the east property boundary. The local landscape position (summit) and slope shape help to limit surface water flow across the test area. The test area is a farm field. Plow "dead furrows" oriented north -to -south are evident throughout the test area. While not detrimental to the site, the depth and persistence of the furrows indicate poor tillage practices and soil management by the prior owner which has likely degraded soil conditions over time. There are no public water features or FEMA-mapped floodplains on the property. Per ST Croix County GIS data, there are no wetland features on the parcel either. There is a Scrub/Shrub/Emergent Meadow wetland feature beginning 1300 feet east of the test area and approximately 45 feet lower in elevation. There are also various mapped freshwater emergent, wet meadow, scrub, shrub, and forested wetland features as well as unmapped wetland features (wetland indicator points) throughout the vicinity. These features are typically located within depressions, low-lying meadows, or along drainage ravines (see attachments 1 & 2). The test area does not appear to have hydric soils or wetland indicator vegetation. Furthermore, the test area does not exhibit a "depressional landscape" characteristic of adjacent wetlands. The consistent rolling slope in the test area has likely aided drainage adequately enough to prevent wetland or hydric soil conditions from forming. The tested area does not appear to be a wetland. HISTORICAL GEOMORPHOLOGY: This area of ST Croix County was formed by ground moraine deposits during the last Wisconsin Glacial Episode occurring 12,000 to 15,000 years ago. Glaciation resulted in erosion, deposition, stream erosion, and other processes that influenced the type, quantity, and quality of the subsurface soil "parent materials." Wisconsin is divided into 5 primary soil regions based on geographic location, broad vegetation type (forest vs. prairie), and texture of parent materials. These 5 primary regions are further broken down into 11 sub -groups based on cover types of texture classes. The soils of this area of St Croix County belong to Soil Region F which is dominated by Hapludalfs in forested silty soils on uplands and plains (Bockheim, J. G., & Hartemink, A.E. (2017). The Soils of Wisconsin. Springer Publishing). The parent material of the tested area consists of windblown loess and loamy deposits laid over a densic sandy loam till (see attachment 3). SOIL MAPPING: USDA Web Soil Survey data classify the soils in the tested area as a Santiago Silt Loam. The Santiago series consists of well -drained soils which are deep to a densic contact. They formed in loess or silty lacustrine deposits and in the underlying dense sandy loam till on ground moraines, disintegration moraines, and end moraines. Permeability is moderate in the silty mantle, slow or moderately slow in the lower part of the solum, and very slow in the substratum. The Santiago series is a Haplic Glossudalf subgroup of the Alfisol soil order. Glossudalf soils are characterized by a "glossic horizon" (E/B, B/E) in soils that are never dry for >90 cumulative days or >45 consecutive days ("ud") (see attachment 4). The topsoils and initial sub -soils express moderate structure which aids in the downward movement of water through the soil profile as well as the lateral movement of water downslope. Soil structure generally deteriorates with depth eventually becoming structureless (massive and very firm). SOIL CONDITIONS Overall, the soil evaluation revealed a relatively consistent topsoil and subsoil regime throughout the test area which comprised borings. Topsoil (Ap-Horizon) depth ranged from 0-10 inches and was a dark brown (10YR 3/3) silt loam with a weak -to -moderate subangular-blocky structure. A plow pan was not encountered in any of the test pits, though it is not unlikely that one may be present in some areas. The Ap-Horizon was followed by a B-Horizon containing a brown (10YR 4/3-4/4) silt loam to loam with - moderate angular -blocky structure. The B-horizon gradually transitioned to a B/C-horizon containing a 7.5YR 4/4 sandy loam with weak subangular blocky structure. Starting at around 24-30" soil texture became appreciably weaker and denser as the parent till was encountered. These glacial till -derived parent materials (C-horizon) were consistently a 7.5YR 4/4 sandy loam with a firm consistency. Structure in the horizon deteriorated with depth eventually becoming massive and structureless, especially beyond 36". Redoximorphic features were observed in all borings. No Redoximorphic Features were observed in the dark brown (10YR 3/3) topsoil of Borings 131-67. The lack of visible Redoximorphic features in the topsoil above 9-10 inches indicates these soils are not likely saturated for a long enough period for the features to develop. However, it should be noted the possibility that Redoximorphic Features in the Ap-horizon cannot be entirely dismissed due to the mixing of the horizon through agricultural tillage. However, given the landscape position, slope -shape, and lighter textured soil in the Ap-horizon, it is unlikely that the horizon is subject to any periods of prolonged saturation. The one exception was Boring B8, which did appear to have some faint Redoximorphic Features visible near the bottom of the horizon. B8 is approximately 200 feet north of the proposed system area. Redoximorphic features were present throughout the subsoil horizons beginning as few -to -common, fine, distinct, and becoming many, medium -to -large, and prominent as depth increased. Redoximorphic features were most abundant and prominent in the massive sandy loam soils in the C-Horizon, indicating the horizon is strongly contributing to the slowed movement of water through the soil solum. The frequency and intensity of the redoximorphic features were markedly lower in the B-Horizon, indicating that "perching" does take place in the upper horizons, but likely less frequently and for a shorter period of time in the upper portions of the solum. No fill soils were encountered in the test area in the test area. It does not appear that a building has ever been present in the tested area. Standing water was observed in many of the test pits during the observation window. The evaluation was conducted immediately following the spring snow melt which is typically during the peak of seasonal saturation in Wisconsin. Ponding in the pits ranged from a depth of 27"-29" below grade. The ponding coincided with observed seasonal saturation indicators present in the soils with the lower horizons exhibiting near total saturation while the overlying Ap and B horizons were unsaturated. A review of ST Croix County parcel records found two soil test reports available in the immediate vicinity. A soil test conducted on 08/13/1998 by Arthur L. Wegerer at 2428 32ND AVE (600 feet south of the test area) found moderately developed silt loams over a sandy clay loam parent material (see attachment 5). A second soil test conducted by myself on 11/08/22 (1200 feet southeast of the test area) found very similar conditions to those of the subject area (see attachment 6). Both test areas are situated on a USDA -classified Santiago silt loam. Neither test exhibited A+0" conditions. However, one notable distinction is that both of these test areas are on land that has been historically used for pasture rather than cropping. The apparent lack of historical tillage at these sites has likely prevented mixing and disturbance of the natural soil horizons and is a good indication of what may have been observed at the subject site before the introduction of tillage. CONCLUSIONS/RECOMMENDATIONS: The site appears to be impacted by a "perched" seasonal water table that is likely caused by the densic sandy loam in the underlying glacial till. Though Redoximorphic features are observed throughout the subsoil, they were more prevalent and prominent at greater depths indicating the upper horizons are not wet as often and for a shorter period of time. Nowhere on the site was there a clear 4-inch subsoil horizon below the topsoil and therefore the site is all "A+O." Overall, topographic relief (3-5%), slope -shape (convex -liner; linear -linear), landscape position (summit), and soil texture (silt loam) in the topsoil horizons is adequate to encourage water movement downslope and away from the test area. Based on all available information I would conclude, at a minimum, the upper 6 inches of topsoil are not seasonally saturated and have the ability to accept and properly treat wastewater effluent to the standards of SPS 383. To prevent "toe leakage" and encourage effective infiltration into the subsoil strata, a long, narrow mound system should be designed. Given the depth and prevalence of the platey soil structure, the basal area loading rate should also be kept very low to ensure proper effluent infiltration and acceptance. The following design criteria shall be implemented in the proposed mound system design: 1. The mound shall be installed on the 100.00 contour 2. The mound shall be long and narrow. The dispersal bed shall not exceed 4.5 feet in width to maintain a linear loading rate at or below 4.5gal/ft/day 3. The basal soil application rate shall not exceed 0.2gpd/ft2 4. The mound should have a minimum 30-inch ASTM-C33 sand -lift S. Pressure distribution shall be level and orifice density shall be kept at or below <10ft2/orifice 6. Mound installation should only occur if soils are dry and friable to prevent smearing of the soil and compaction of the subsurface soil structure. Installation should be avoided during the spring of the year if possible. 7. A thorough plowing of the system area shall be completed before installation. Plowing should be done in a manner that reduces or eliminates the presence of any existing "dead furrows" within the basal area without overworking the soil and depleting the structure. Attachment 2 SCC ArcGIS Web Map 4/20i2023, 11:09:57 AM 1:12,908 0 0.07 0.15 0.3 mi Public ROW Flood Hazard Areas Q ZONE AE - FLOODWAY i y I , I I Tax Parcels 0 ZONE A 0 ZONE X - 0.2 PCT ANNUAL CHANCE FLOOD HAZARD 0 0.13 0.25 0.5 km O ZONE AE +-� WDNR, SCC CDD, SCC CDD, FEMA, SCC CDD SubdivisionICBM Boundaries Base Flood Elevation Web AppBuilder for ArcGIS SCC CDD I WDNR, SCC CDD I SCC CDD and SCC Highway Dept I FEMA, SCC CDD I CDD and NIPS I National Geospatial-Intelligence Agency (NGA); Delta Stale University; Esri I WI Dept. of Natural Resources Division of Water I 8/20/2021 ATTACHMENT 3 LOCATION SANTIAGO WI+MN Established Series Rev. DJH-DEJ-HFG 02/2006 Soil Data Explorer I Califomia Soil Resource Lab SANTIAGO SERIES The Santiago series consists of well drained soils which are deep to a densic contact. They formed in loess or silty lacustrine deposits and in the underlying dense sandy loam till on ground moraines, disintegration moraines, and end moraines. Permeability is moderate in the silty mantle, slow or moderately slow in the lower part of the solum, and very slow in the substratum. Slope ranges from 1 to 45 percent. Mean annual precipitation is about 30 inches. Mean annual air temperature is about 42 degrees F. TAXONOMIC CLASS: Coarse -loamy, mixed, superactive, frigid Haplic Glossudalfs TYPICAL PEDON: Santiago silt loam, on a convex, northeast -facing slope of 8 percent, in a cultivated field, at an elevation of about 1,180 feet. (Colors are for moist soil unless otherwise stated.) Ap--O to 10 inches; dark brown (I OYR 3/3) silt loam, light brownish gray (I OYR 6/2) dry; moderate medium granular structure; friable; many fine and few medium roots; 4 percent gravel; slightly acid; abrupt smooth boundary. (6 to 12 inches thick) EB--10 to 15 inches; about 60 percent brown (I OYR 5/3) silt loam (E), very pale brown (I OYR 7/3) dry; weak medium platy structure parting to moderate very fine subangular blocky; friable; extends as tongues into or surrounds remnants of dark yellowish brown (I OYR 4/4) silt loam (Bt); moderate very fine subangular blocky structure; friable; common faint dark yellowish brown (1 OYR 3/4) clay films on faces of peds; common fine and medium roots; 1 percent gravel; moderately acid; clear smooth boundary. B/E--15 to 23 inches; about 70 percent dark yellowish brown (I OYR 4/4) silt loam (Bt); moderate very fine subangular blocky structure; friable; common faint dark yellowish brown (1 OYR 3/4) clay films on faces of peds; penetrated by tongues of brown (I OYR 5/3) silt loam (E), very pale brown (I OYR 7/3) dry; weak medium platy structure parting moderate very fine subangular blocky; friable; common fine and few medium roots; 1 percent gravel; very strongly acid; abrupt wavy boundary. (Glossic horizon ranges from 5 to 20 inches thick.) 2Btl--23 to 36 inches; dark brown (7.5YR 3/4) gravelly sandy loam; moderate fine prismatic structure tending to part along horizontal cleavage planes to weak medium plates inherited from the parent material; firm; common fine roots; common faint dark brown (7.5YR 3/3) and few distinct reddish brown (5YR 4/4) clay films on all faces of peds; few prominent brown (1 OYR 5/3) silt coats on vertical faces of peds; 14 percent gravel and about 1 percent cobbles; slightly brittle; strongly acid; abrupt wavy boundary. 2Bt2--36 to 49 inches; dark brown (7.5YR 3/4) fine sandy loam; moderate fine prismatic structure tending to part along horizontal cleavage planes to weak medium plates inherited from the parent material; firm; few fine roots; many faint dark brown (7.5YR 3/3) clay films on all faces of peds; very few prominent brown (1 OYR 5/3) silt coats on vertical faces of peds; 11 percent gravel and about 1 percent cobbles; slightly brittle; strongly acid; gradual wavy boundary. (Combined thickness of the 213t horizon ranges from 8 to 30 inches.) 2BCd1--49 to 69 inches; dark reddish brown (5YR 3/4) sandy loam; weak very coarse prismatic structure tending to part along horizontal cleavage planes to weak medium plates inherited from the parent material; firm; few fine roots; few faint dark reddish brown (5YR 3/3) clay films on top faces of peds; 9 percent gravel and about 1 percent cobbles; moderately acid; gradual wavy boundary. https://casoilresource.lawr.ucdavis.edu/sdel?series=santiago 114 8/20/2021 Soil Data Explorer I California Soil Resource Lab 2BCd2--Ii9T69HinM Ns Irk reddish brown (5YR 3/4) sandy loam; weak extremely coarse prismatic structure tending to part along horizontal cleavage planes to weak medium plates inherited from the parent material; firm; few fine roots; few distinct dark reddish brown (5YR 3/3) clay films on top faces of peds; 7 percent gravel and about 1 percent cobbles; few sandstone channers; moderately acid; gradual wavy boundary. (Combined thickness of the 2BCd horizon ranges from 0 to 70 inches.) 2Cd--87 to 102 inches; reddish brown (5YR 4/4) sandy loam; tending to part along horizontal cleavage planes to weak medium plates; firm; dense and compact; 9 percent gravel and about 1 percent cobbles; slightly acid. TYPE LOCATION: Barron County, Wisconsin; about 2 miles east and 1.5 miles south of Reeve; located about 1,840 feet south and 2,040 feet east of the northwest corner of section 34, T. 32 N., R. 14 W.; USGS Connorsville topographic quadrangle; lat. 45 degrees 13 minutes 09 seconds N. and long. 92 degrees 05 minutes 12 seconds W., NAD 83. RANGE IN CHARACTERISTICS: Thickness of the silty mantle ranges from 12 to 36 inches. Depth to the base of the argillic horizon and to densic contact ranges from 40 to 60 inches. Content of clay averages from 7 to 17 percent in the particle -size control section and the content of fine sand or coarser averages 15 to 70 percent. The base saturation (by sum of cations) is less than 60 percent in some part of the argillic horizon. Volume of gravel ranges from 0 to 10 percent in the silty mantle and from 5 to 35 percent in the till. Volume of cobbles ranges from 0 to 3 percent in the silty mantle and from 0 to 5 percent in the till. Volume of stones ranges from 0 to 1 percent in the silty mantle and from 0 to 3 percent in the till. Surface stones have coverage ranging from 0 to 3 percent. Reaction ranges from extremely acid to slightly acid in the solum, except it ranges to neutral in the Ap horizon where the soil is limed. Reaction ranges from strongly acid to neutral in the substratum. The Ap horizon has hue of 7.5YR or 1 OYR, value of 3 or 4, and chroma of 1 to 3. Dry value is greater than 5.5. Uncultivated pedons have an A horizon, 1 to 4 inches thick, with hue of 7.5YR or 1 OYR, value of 2 or 3, and chroma of 1 or 2. Texture is silt loam. Some pedons have an E horizon with hue of 7.5YR or 1 OYR, value of 4 to 6, and chroma of 2 or 3. Colors of 4/3 or 5/3 have value dry of 7 or more. The E horizon is silt loam or silt. Some pedons have a Bw horizon with hue of 7.5YR or 1 OYR, value of 3 to 5, and chroma of 4. It is silt loam. Bw horizons with spodic color have less than 0.6 percent organic carbon. Santiago soils have a glossic horizon. Horizonation has a wide range depending on the thickness of the silty mantle and the degree to which eluviation has occurred. Therefore, there can be EB, B/E, 2EB, or 2B/E horizons singly or in combination. The E part of the EB or B/E horizon has color and texture like the E horizon described above. The Bt part has hue of 7.5YR or IOYR, value of 3 to 5, and chroma of 4 to 6. Some pedons have a Bt horizon with color and texture like the Bt part described above. The 2E part of the 2EB or 2B/E horizon has hue of 5YR, 7.5YR, or 1 OYR, value of 4 to 6 and chroma of 2 or 3. Colors of 4/3 or 5/3 have value dry of 7 or more. The 2E part is typically sandy loam, fine sandy loam, loam, or their gravelly analogs, but in some pedons it is loamy sand or gravelly loamy sand. The 213t part has color and texture like the 213t horizon described below. The 2Bt horizon has hue of 2.5YR, 5YR, or 7.5YR, value of 3 to 5 and chroma of 4 to 6. It is typically sandy loam, fine sandy loam, loam, or their gravelly analogs. The bulk density ranges from 1.65 to 1.90 gm/cc. Some pedons have pockets or strata of loamy sand or gravelly loamy sand. The 2BCd horizon has hue of 2.5YR, 5YR, or 7.5YR, value of 3 to 5 and chroma of 4 to 6. It is typically sandy loam, fine sandy loam, or their gravelly analogs. Bulk density ranges from 1.8 to 2.0 gm/cc. Some pedons have pockets or strata of loamy sand or gravelly loamy sand. https://casoilresource.lawr.ur-davis.edu/sde/?series=santiago 2/4 Attachment 4 3 m m 554100 5541BO 44' 54' 47' N 44° 54' 20' N 554100 5AIW 554-160 554.340 554420 3 m Map Scale: 1:3,250 fi printed on A portrait (8.5" x 11") sheet. Meters P N 0 45 90 180 270 Feet 0 150 300 600 900 Map projection: Web Mercator Comer coordinates: WGS84 Edge tics: UTM Zone 15N WGS84 USDA Natural Resources Web Soil Survey 211111111111111 Conservation Service National Cooperative Soil Survey Soil Map —St. Croix County, Wisconsin 5542M 554W 5544M 3 m R� 554580 44' 5442" N i� 0 o_ 44° 54' 20" N 554500 554580 3 m rn 4/20/2023 Page 1 of 3 Attachment 4 Sbil Map —St. Croix County, Wisconsin Map Unit Legend Map Unit Symbol I Map Unit Name Acres in AOI I Percent of AOI AmC2 Amery loam, 6 to 12 percent 7.3 15.8% slopes, eroded CoC2 Chetek-Onamia complex, 6 to 4.9 10.6% 12 percent slopes, eroded CoD2 Chetek-Onamia complex, 12 to 0.31 0.6% 20 percent slopes, eroded FnB Freeon silt loam, 2 to 6 percent 2.9 6.2% slopes Ma6 Magnor silt loam, 0 to 4 5.3 11.4% percent slopes RhA Rib silt loam, 0 to 3 percent 2.5 5.3% slopes 1 SaB Santiago silt loam, 2 to 6 8.9 19.0% percent slopes SaC2 Santiago silt loam, 6 to 12 7.5 16.1 % 1 percent slopes, eroded SrA Skyberg silt loam, 0 to 3 2.5 5.3% percent slopes VaB Vlasaty silt loam, 2 to 6 3.2 6.9% percent slopes VaC2 Vlasaty silt loam, 6 to 12 1.3 1, 2.9%' percent slopes, eroded Totals for Area of Interest 46.6i 100.0% usDA Natural Resources Web Soil Survey 4/20/2023 Conservation Service National Cooperative Soil Survey Page 3 of 3