08/29/2001 Env Bd Packet - Laserfiche WebLink

Home Search

• AGENDA ITEM 5D STAFF ORIGINATOR: Marty Asleson DATE: August 29, 2001 TOPIC: Molin Concrete Site Plan Review BACKGROUND: Molin Concrete is one of the oldest established businesses in the City of Lino Lakes. It is assumed that residential housing came in after Molin Concrete was established. Molin Concrete has made application to build an additional concrete manufacturing facility on the site. There is also an intent to build an automated gantry system in the storage area in the future. Zoning conformance issues such as % greenspace have not been reviewed yet. Wetland impacts have been indicated, as well as proposed wetland mitigation and infiltration intents. This has not been reviewed by the RCWD yet. The Molin Concrete site is divided into two subwatershed areas of the Marshan Lake Watershed. All water is assumed to flow to Marshan Lake via CD 10. The 1994 Surface Water Management Plan indicates the Subwatershed MALNE has a high priority for a drainage study to determine outflow and ponding requirements for culvert under 4th Ave and to verify discharge from the area. MALNE is on the north side of the site. CD10N is the subwatershed on the south side of the site and the 1994 SWMP indicates a high priority for a drainage study to review RCWD study to determine flow rates determined in their reports. The estimated costs for these studies were indicated as $2000 each in 1994. A significant amount of wetland soils (isanti wet) were filled when the Molin Concrete Plant was initially constructed. Impervious run off, and water with ellevated high pH levels, may be a concern with this site. Creating an effective infiltration area is important here. Previous Conditional Use Permits required screening on the berm to the North. This berm should be planted and irrigation supplied to allow for plant growth. Construction of the new facilities appears to miss the area on the east side of the property with trees. This tree area is classified as Recently Developed Forest in Degraded Condition. The County well Point index indicates a well head location in the present storage area of the facility. If this well head is not being used it should be capped.