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® Other, explain: development agreements b. Provide either a direct link to the mechanism selected above or attach it as an electronic document to this form; or if your regulatory mechanism is either an Ordinance or a Rule, you may provide a citation: Citation: Direct link: http://www.ci.hugo. mn. us/vertical/sites/%7BBED5C6A0- 2687-460E-9C61-6B7CCADA2CBA%7D/uploads/Hugo_CSWMP.pdf ® Check here if attaching an electronic copy of your regulatory mechanism, with the following file naming convention: MS4 City of Hugo-PostCSWreg. B. Answer yes or no below to indicate whether you have a regulatory mechanism(s) in place that meets the following requirements as described in the Permit (Part III.D.5.a.): 1. Site plan review: Requirements that owners and/or operators of construction activity submit ® Yes ❑ No site plans with post -construction stormwater management BMPs to the permittee for review and approval, prior to start of construction activity. 2. Conditions for post construction stormwater management: Requires the use of any combination of BMPs, with highest preference given to Green Infrastructure techniques and practices (e.g., infiltration, evapotranspiration, reuse/harvesting, conservation design, urban forestry, green roofs, etc.), necessary to meet the following conditions on the site of a construction activity to the Maximum Extent Practicable (MEP): a. For new development projects — no net increase from pre -project conditions (on an annual ® Yes ❑ No average basis) of: 1) Stormwater discharge volume, unless precluded by the stormwater management limitations in the Permit (Part III.D.5.a(3)(a)). 2) Stormwater discharges of Total Suspended Solids (TSS). 3) Stormwater discharges of Total Phosphorus (TP). b. For redevelopment projects — a net reduction from pre -project conditions (on an annual ❑ Yes ® No average basis) of: 1) Stormwater discharge volume, unless precluded by the stormwater management limitations in the Permit (Part III.D.5.a(3)(a)). 2) Stormwater discharges of TSS. 3) Stormwater discharges of TP. 3. Stormwater management limitations and exceptions: a. Limitations 1) Prohibit the use of infiltration techniques to achieve the conditions for post -construction ® Yes ❑ No stormwater management in the Permit (Part III.D.5.a(2)) when the infiltration structural stormwater BMP will receive discharges from, or be constructed in areas: a) Where industrial facilities are not authorized to infiltrate industrial stormwater under an NPDES/SDS Industrial Stormwater Permit issued by the MPCA. b) Where vehicle fueling and maintenance occur. c) 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. d) Where high levels of contaminants in soil or groundwater will be mobilized by the infiltrating stormwater. 2) Restrict the use of infiltration techniques to achieve the conditions for post -construction ❑ Yes ® No stormwater management in the Permit (Part III.D.5.a(2)), without higher engineering review, sufficient to provide a functioning treatment system and prevent adverse impacts to groundwater, when the infiltration device will be constructed in areas: a) With predominately Hydrologic Soil Group D (clay) soils. b) Within 1,000 feet up -gradient, or 100 feet down -gradient of active karst features. c) Within a Drinking Water Supply Management Area (DWSMA) as defined in Minn. R. 4720.5100, subp. 13. d) Where soil infiltration rates are more than 8.3 inches per hour. 3) For linear projects where the lack of right-of-way precludes the installation of volume ® Yes ❑ No control practices that meet the conditions for post -construction stormwater management in the Permit (Part III.D.5.a(2)), the permittee's regulatory mechanism(s) may allow www.pca.state.mn.us 651-296-6300 800-657-3864 TTY 651-282-5332 or 800-657-3864 • Available in alternative formats wq-strm4-49a • 5131113 Page 5 of 14