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Soil Monitoring Letter to Roger Peitso - Dated 03-18-16
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Soil Monitoring Letter to Roger Peitso - Dated 03-18-16
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8/22/2023 4:12:18 PM
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5/19/2016 4:17:07 PM
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x Address Old
House Number
540
Street Name
Big Island
Address
540 Big Island
Document Type
Septic
PIN
2211723420001
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. ��� <br /> ! ; <br /> j Technical WENCK <br /> Memo . . . <br /> Responsive partner. <br /> Exceptional outcomes. <br /> To: Roger Peitso, Building Official, City of Orono <br /> From: Peter Miller <br /> Professional Soil Scientist (42636) <br /> Advanced Designer/Inspector (2341) <br /> Date: March 8, 2016 <br /> Subject: 540 Big Island <br /> Purpose <br /> The subject property is a 3.2 acre lot on the southwest end of Big Island on Lake <br /> Minnetonka. The property is currently owned by Mr. Gabbriel Jabbour and is for sale. Mr. <br /> Shawn Wischmeier has expressed interest in the property and has requested this <br /> correspondence with the City of Orono with the ultimate goal to obtain an Individual Sewage <br /> Treatment System (ISTS) permit for a proposed cabin on the lot. Due to the time of year, it <br /> is not practical to visit the site with the City until spring conditions allow. This memo is <br /> intended to inform you as to the background, history, and research that has occurred on the <br /> subject site and on Big Island. Our intent would be to submit an ISTS design in spring- <br /> summer 2016 for approval and permitting. <br /> The goal of this memo is for you to concur with the determination that an in-ground ISTS is <br /> suitable for the site to give the potential buyer assurance that an ISTS permit can be issued <br /> in the future. <br /> Background <br /> Big Island is a series of kettle lakes connected by channels and streams, with an underlying <br /> soil parent material of glacial till. Big Island, like other islands on the lake, is a glacial <br /> deposit of calcareous loamy-clayey soil with undulating, moderate to steep, topography. The <br /> Hennepin County Soil Survey maps most of the upland portions of Big Island as Minnesota's <br /> state soil; the Lester series. <br /> Lester soils are very prevalent across central and southern Minnesota with a commonly <br /> distinguished olive brown color in the subsoil with a loam to clay loam texture. On Big <br /> Island it is common to see these soils in the summit, shoulder, and back slope landscape <br /> positions, with slopes ranging from 6%-20%. <br /> Lester soils in these upper landscape positions are typically classified as well drained; <br /> meaning they are dry, bright colored, and feature a depth to free water greater than 5 feet <br /> below the ground surface. What has confused ISTS practitioners over the years is the <br /> presence of features in the soil that appear to be contemporary redoximorphic features, i.e. <br /> signatures in the soil that make it look seasonally saturated. These include reddish iron <br /> concretions, grayish iron depletions, and whitish calcium carbonates threads. <br /> When looking at redoximorphic features in the soil it is important to look at the <br /> preponderance of evidence to determine if the features you are observing are indicators of <br /> Wenck Associates, Inc. I 7500 Olson Memorial Highway I Suite 300 � Golden Valley, MN 55427 <br /> Toll Free 800-472-2232 Main 763-252-6800 Email wenckmp@wenck.com Web wenck.com <br />
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