DCPREZ-2013-10649 - Laserfiche WebLink

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Jeffrey L. Hammes Certified Soil Testing 820 Williamson St., #401 Certified Designing Madison, WI 53703 (608) 233-9200 3/14/2014 Tim Gotzion Windsor Golf Ventures 6592 Lake Rd., Suite D Windsor, WI 53598 Re: Soil Borings—Windsor Blue Preliminary Plat Dear Mr. Gotzion: On 3/12/2014 I examined 15 soil borings located in the preliminary plat (as noted above) for depth to estimated high groundwater (seasonal saturation), stormwater treatment capability, soil series and fill placement.The attached table is a summary of the observed borings. It is recommended that any proposed basement floor elevation should stay above the estimated high groundwater (seasonal saturation). Basement floors and walls installed below these depths should have extensive water proofing and install drain tile inside and outside of the footings connected to an active sump pit. All foundations installed in wet soil areas should set properly constructed pilings into stable course subsoils (sand, sandy loam). Details of the 15 soil borings for determination of stormwater sizing, location and type are attached. The soil series observed were a range from hydric (Waucosta silty clay loam) to upland soils (Dodge silt loam, Kegonsa silt loam). The hydric soil area appears to have been filled to direct surface flow of water away from this area.The fill was found to be well structured with a developed topsoil horizon and with absent compaction from initial placement of the fill. The time sequence for natural remediation of compaction caused by filling,topsoil and consistent structure formation would indicate that this fill would generally be considered as being placed more than 50 years ago. See attached map showing boring locations,topography and the approximate area of filled hydric soils. If you have any questions please feel free to call me. Sin.erely, 11011 rey L. Hammes State of Wisconsin Professional Soil Scientist (License #191-112)