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100. If yes in 098, provide a webs ite address to the regulatory mechanism (a). If the regulatory mechanism is not available online, briefly describe how a copy of the regulatory mechanism can be obtained: http://www. cityofroseville. com/Docu mentCenter/View/28566/Title-S-Public-Works-1 90806 http: //www. cityofrosevi Ile. com/Docu mentCenter/View/30115/24-Rosevi Ile-2040-Comprehensive-Plan-for-Final-Adoption 101. If yes in 098, which of the following requirements are incorporated into your regulatory mechanism? (Check all that apply) 101.A. Did Permit item 20.4 You must require owners of construction activity to submit site plans with postconstruction stormwater management BMPs designed with accepted engineering practices to you for review and confirmation that regulatory mechanisms) requirements have been met, prior to start of construction activity. 101.B. Did Permititem 20.5: You must require owners of construction activity to treat the water quality volume on any project where the sum of the new impervious surface and the fully reconstructed impervious surface equals one or more acres. (Note: All orsome of this item is a newpermit requirement, Compliance with new requirements is required within 12 months after receiving permit coverage,) 101.C. Did Permititem 20.6: For construction activity (excluding linear projects), the water quality volume must be calculated as one (1) inch times the sum of the new and the fully reconstructed impervious surface. (Note: All or some of this item is a newpermit requirement. Compliance with new requirements is required within 12 months after receiving permit coverage.) 101.D. Did Permititem 20.7: For linearprojects, the water quality volume must be calculated asthelargerofone(1)inch times the new impervious surface or one-half (0.5) inch times the sum of the new and the fully reconstructed impervious surface. Where the entire water quality volume cannot be treated within the existing right-of-way, a reasonable attempt to obtain additional right-0f-way, easement, or other permission to treat the stormwater during the project planning process must be made. Volume reduction practices must be considered first, as described in item 20.8. Volume reduction practices are not required if the practices cannot be provided cost effectively. If additional right-0f-way, easements, or other permission cannot be obtained, owners of construction activity must maximize the treatment of the water quality volume prior to discharge from the MS4. (Note: All or some of this item is a newpermit requirement. Compliance with newrequirements is required within 12 months after receiving permit coverage,) 101.E. Did Permit item 20.8: Volume reduction practices (e.g., infiltration or other) to retain the water quality volume on site must be considered first when designing the permanent stormwater treatment system. This permit does not consider wet sedimentation basins and filtration systems to be volume reduction practices. If this permit prohibits infiltration as described in item 20.9, other volume reduction practices, a wet sedimentation basin, or filtration basin may be considered. 101.F. Dic Permit item 20.9: Infiltration systems must be prohibited when the system would be constructed in areas'. a. That receive discharges from vehicle fueling and maintenance areas, regardless of the amount of new and fully reconstructed impervious surface. (Note: All or some of this item is anew permit requirement. Compliance with new requirements is required within 12 months after receiving permit coverage.) b. Where high levels of contaminants in soil or groundwater may be mobilized by the infiltrating stormwater. To make this determination, the owners and/or operators of construction activity must complete the MPCNs site screening assessment checklist, which is available in the Minnesota Stormwater Manual, or conduct their own assessment. The assessment must be retained with the site plans. (Note: All orsome of this item is anew permit requirement. Compliance with new requirements is required within 12 months after receiving permitcoveral c. Where soil infiltration rates are more than 8.3 inches per hour unless soils are amended to slow the infiltration rate below 8.3 inches per hour. (Note: All or some of this item is a new permit requirement. Compliance with new requirements is required within 12 months after receiving permit coverage,) el With less than three(3) feet of separation distance from the bottom of the infiltration system to the elevation of the seasonally saturated soils or the top of bedrock. e. Of predominately Hydrologic Soil Group D (clay) soils. (Note: All or some of this item is a new permit requirement. Compliance with new requirements is required within 12 months after receiving permit coverage,) f In an Emergency Response Area (ERA) within a Drinking Water Supply Me nag ement Area (DWSMA) as defined in Minn. R. 4720.5100, Su bp. 13, classified as high or very high vulnerability as defined by the Minnesota Department of Health. (Note: All orsome of this item is a newpermit requirement. Compliance with new requirements is required within 12 months after receiving permit coverage.) g. In an ERA within a DWSMA classified as moderate vulnerability unless you perform or approve a higher level of engineering review sufficient to provide a functioning treatment system and to prevent adverse impacts to groundwater. (Note: All orsome of this item is a newpermit requirement. Compliance with new requirements is required within 12 months after receiving permit coverage.) h. Outside of an ERA within a DWSMA classified as high or very high vulnerability unless you perform or approve a higher level of engineering review sufficient to provide a functioning treatment system and to prevent adverse impacts to groundwater. (Note: All or some of this item is a new permit requirement. Compliance with new requirements is required within 12 months after receiving permit coverage.) i. Within 1,000 feet up-g red ient or 100 feet down gradient of active Karst features. (Note: All or some of this item is a new permit requirement. Compliance with new requirements is required within 12 months after receiving permit coverage.) htuss//wwwu is, a. state. mn.us • 651296-6300 • 800,657-386¢ • use your preferred relay service • Available in alternative formats wq-trru n9a • 9/23/20 Plibi?Mpf 115