Agenda - Environmental Policy Board - 10/15/2018

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for records of potential contamination. The following table summarizes the listings identified within undeveloped parcels of the study area. Table 2. Summary of MPCA/MDA Listings Site Name Address Activity ID 5 Senior Housing Parcel County Road Brownfields, Voluntary Investigation 116 and Cleanup A map showing the location of the identified site is included as Figure 3 in Appendix A. The listings associated with Site 5 indicate the presence, or likely presence, of soil and/or groundwater contamination. Mitigation recommendations are outlined in the Mitigation Plan. In addition to the review of the MPCA database, the city completed Phase I Environmental Site Assessments (ESA) on Parcels 28-32-25-41-0002 (Site 50), 28-32- 25-23-0011 and 28-32-25-23-0013 (Site 42). In addition to Phase I ESAs, a Phase II ESA was also completed on parcel 28-32-25-23-0010 (Site 47). Investigations at Sites 42 and 50 did not indicate the presence of environmental hazards. Investigations at Site 47 revealed the presence of environmental hazards above regulatory thresholds in the soil and/or soil gas. This site is shown on Figure 3 in Appendix A. Mitigation recommendations for this site are outlined in the Mitigation Plan. D. Stormwater Management Development will be required to meet the stormwater management guidelines of the Lower Rum River Watershed Management Organization (LRRWMO). The LRRWMO adopted new rules in the "3rd Generation Watershed Management Plan" on January 19, 2012. A new stormwater management plan was approved by the City of Ramsey in 2015. The 2015 plan addresses the new LRRWMO requirements and reflects the new COR development plan. The LRRWMO issued a permit for The COR (formerly Ramsey Town Center), which is still active. The 3rd Generation Plan added a requirement for infiltration for new development. This requirement is being implemented by the City of Ramsey. LRRWMO updated their Stormwater Standards in March 2018, primarily focusing on the new infiltration requirement, allowable design storm events (MSE Atlas 14) and modified water quality standards. The City is considering implementation of regional infiltration in conjunction with existing and planned regional facilities, including proposed Lake Ramsey (see Figure 2, Appendix A). E. Ecologically Sensitive Areas The AUAR included review and analysis of the ecologically sensitive areas within the study area. For this update, the DNR Natural Heritage Database information was updated and is included in Appendix B. This update contains additional known occurrences of rare species or natural communities within a one -mile radius of the study area as compared to the data from the original AUAR. The mitigation plan is adequate to AUAR Five Year Update The COR (formerly Ramsey Town Center) Alternative Urban Areawide Review W SB Project No. 11954-000 Page 4