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Search results with tag "Standard stormwater"
Table 4.1 New York Stormwater Sizing Criteria1
www.dec.ny.gov2 New York State Stormwater Management Design Manual . Chapter 4: Unified Stormwater Sizing Criteria ... is directly related to the amount of impervious cover constructed at a site. Contour lines of the ... standard stormwater management practices with runoff reduction capacity, and good operation and maintenance. 4-5 .
Summary of State Stormwater Standards
www3.epa.govJun 30, 2011 · Standards 1 . New Hampshire 2003 MS4s . 1 acre disturbed area / 100,000 sf outside MS4s Infiltrate, evapotranspire, or capture first 1” Same as new development . 1 . Rhode Island 2011 . State-wide . 1 acre disturbed area . Capture and treat WQv equivalent to 1.2” rainfall runoff . WQv requirement may be waived or reduced by applying ...