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TABLE C2. SPECIFIC CONDITIONS THAT MAY RESTRICT INFILTRATION. <br />Type <br />Specific Project Site Conditions <br />Required Submittals <br />Potential Stormwater Hotspots (PSH) <br />PSH Locations <br />and Flow Paths <br />Potential <br />Documentation <br />Contamination <br />Contaminated Soils <br />of Contamination <br />Soil Borings <br />Low Permeability Soils (HSG C & D) <br />Soil Borings <br />Bedrock within three vertical feet <br />Soil Borings <br />Physical <br />of bottom of infiltration area <br />Seasonal High Water Table within three <br />Soil Borings <br />Limitations <br />vertical feet of bottom of infiltration area <br />High Water Table <br />Karst Areas <br />Soil Borings <br />Utility Locations <br />Site Map <br />Land Use <br />Nearby Wells (Private and/or Municipal) * <br />Well Locations <br />Limitations <br />* Refer to Minnesota Stormwater Manual or the Minnesota Department of Health for setback <br />requirements. <br />(e) Stormwater runoff from all new and reconstructed impervious surface must be treated <br />for total phosphorus if feasible. Notwithstanding, runoff from undisturbed site impervious <br />surface may be treated in lieu of treating new or reconstructed impervious surface, provided <br />the runoff from that surface drains to the same Resource of Concern as the <br />new/reconstructed surface not being treated. Except for Public Linear projects, the area <br />not treated for phosphorus may not exceed 15 percent of all the new or reconstructed <br />impervious surface. For all untreated surface, TSS must be removed to the maximum <br />extent practicable.. Total water quality treatment volume for the project must be provided <br />in aggregate pursuant to subsections 6(c) and 6(d). <br />(f) For single-family residential development, the runoff from impervious surface other than <br />parking or driving surface that, in the District's judgment, cannot reasonably be routed to a <br />stormwater BMP is considered effectively treated for water quality if: <br />(1) The length of the flow path across the impervious surface is less than the length of <br />the flow path across the pervious surface to which it discharges; and <br />(2) The pervious surface is vegetated and has an average slope of five percent or <br />less. <br />(g) Banked "volume control" credits and debits established by public entities for Public Linear <br />Projects with the RCWD prior to the effective date of this rule will continue to be recognized <br />and enforced until all credits are used or all debits are fulfilled. Existing credits and debits <br />may be used and fulfilled, respectively, anywhere within the applicant's jurisdiction. <br />:V <br />