Agenda Packets - 2025/05/11 - Laserfiche WebLink

Home Browse Search

Proposed Senior Living Facility—Mounds View, Minnesota Kilo Project 25-2066—December 30,2025 Page 3 of 9 SITE AND SUBSURFACE CONDITIONS Field Exploration Summary The following locations were sampled with soil borings to explore the subsurface conditions at the site: BORING BORING TYPE LOCATION SURFACE ELEVATION* DEPTH OF (FT MSL) BORING(FT) T-1 Proposed Pavement Northeast Drive Lane 913± 2* T-2 Proposed Pavement East Drive Lane 914± 2* T-3 Proposed Building North Side of Building 914± 2* T-4 Proposed Building Center-East Side of Building 912± 5 T-5 Proposed Building Southwest Side of Building 911± 5 T-6 Proposed Building Center of Building 912± 5 T-7 Proposed Pavement Southeast Corner 912± 5 *Auger refusal on buried brick and cobbles The borings were located in the field within the property and the locations were recorded utilizing handheld GPS technology with an estimated horizontal accuracy of 15± feet. Some of the borings were offset from the locations noted on the client-provided site plan due to existing trees and limited testing areas. The surface elevation at each boring location was estimated from Google Earth. The vertical accuracy of the elevation data should be within 5±feet of actual survey elevations. The borings were completed utilizing solid-stem power auger and rotary hand auger boring techniques. Representative samples of the recovered soils in the auger cuttings were used for soil classification. The auger cuttings were observed in a continuous manner during boring advancement towards target depths of 5 feet below existing site grades. Auger refusal was encountered at 2 feet in borings B-1, B-2, and B-3 on observed buried brick and cobbles, shallower than the target depth of 5 feet. No groundwater was observed in any of the completed borings on site. The groundwater level is anticipated to closely match the elevation of the wetland feature located directly east of the site at approximately 904± feet MSL. Given the soil types present, the static groundwater level is anticipated to be below the zone of Kilo's exploration. If groundwater is encountered during construction, it is anticipated that it can be controlled using conventional sumping techniques. The soil stratigraphy encountered in the field exploration is generalized in the table below: TY PE YPE OIL YP SOIL DESCRIPTION SOIL COLOR DEPTH RANGE(FT) NOTES (USOL Surficial Organic Soil Black 0 to 1±feet - Fill Undocumented Fill Dark Brown 0 to 1 %±feet Buried Brick and Gravel %±to 5±feet SP-SM Sand with Silt Dark Brown, Possible Fill -Sand with Brown gravel (B-1) SIP Sand Brown, 2±to 5±feet Fine Sand Light Brown The shallow site soils encountered in the field exploration were compared to the mapped Web Soil