07/13/2016 P&Z Packet - Laserfiche WebLink

Home Search

Ms. Katie Larsen June 28, 2016 Page 3 impact development techniques. The SWPPP provided with the plans outlines various BMPs, but specific use of BMPs should be shown on an erosion and sediment control plan. 4. AUAR Mitigation Section 16.4. Project proposers are required to provide construction oversight to ensure designed sediment and erosion control measures are being implemented. The SWPPP indicates that an individual has not yet been identified to provide this oversight. The individual(s) providing this oversight should be identified and contact information provided in the SWPPP. 5. AUAR Mitigation Section 16.5. The AUAR highlights this area as part of the Conservation Design Framework (CDF) with a future greenway corridor and trail from Cedar Street north through the property. Reference Item 11.1. WATER QUALITY: SURFACE WATER RUNOFF 1. AUAR Mitigation Section 17.3. The AUAR requires stormwater management systems to be developed in accordance with the current version of the Rice Creek Watershed District Rules. This area was identified in the AUAR as a Runoff Sensitive Area for rate and volume of stormwater runoff and applicant should seek to maintain proposed runoff volumes within 20% of existing conditions runoff volumes. The applicant should also apply through the RCWD to meet volume and rate control requirements and provide treatment for 1.1" over the new impervious. In addition, infiltration is not feasible due to high seasonal groundwater, NURP ponding will be provided to treat runoff. The project is located within, and impacting, a FEMA 100-year floodplain. Compensatory mitigation will be required at a minimum 1:1 ratio within the same floodplain in which the impacts occur. WATER QUALITY: WASTEWATER AUAR Mitigation Section 18.5. Each proposed development is required to provide a detailed projection of wastewater generation and flows. This has been reviewed by the city engineer and is in compliance with the mitigation measures. SOIL AND GROUNDWATER CONTAMINATION AUAR Mitigation Section 19.2. While contaminated materials are not expected within the development area, if any are discovered during construction the applicant should follow state laws and report the information to the MPCA for further investigation and, if necessary, remediation. TRANSPORTATION The applicant needs to submit an updated Traffic Impact Study, and evaluate the impacts from the site assuming no connections to 20th Ave. or Cedar St. that were assumed in the AUAR. CULTURAL RESOURCES \\mspfsv02.lps.local\Studim\Aaive Projects\CLL16007 - Clearwater Creek Business Park in Lino Lakes MN\Fr m Others (Original Data)\20160628 Engineerinj