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• Regulatory information
  ...water disposal systems (for example, dry wells, sumps, drain tile, certain infiltration practices) placing stormwater below the land surface. ...disposal of stormwater through the State Disposal System (SDS) MPCA issues combined NPDES/SDS permits.
  57 KB (8,066 words) - 16:58, 7 March 2023
• Cold climate impact on runoff management
  ...and can continue to do so as long as the rate of melt does not exceed the infiltration capacity of the soil. If sufficient snowpack is available, saturation can o ...hat come from urban meltwater may cause physical, chemical, biological and combined effects in receiving waters and thereby limit their quality, ecosystems and
  78 KB (12,338 words) - 13:58, 20 February 2023
• Technical guidance used by MPCA to develop guidelines for setting TMDL WLAs for regulated stormwater
  ...of stormwater through State Disposal System (SDS) permits. The MPCA issues combined NPDES/SDS permits for construction sites, industrial facilities and municip *Which is not a combined sewer; and
  108 KB (16,702 words) - 19:49, 20 February 2023
• Design guidelines for soil characteristics - tree trenches and tree boxes
  Implicit in the design guidance is the fact that many design elements of infiltration and filtration systems can minimize the maintenance burden and maintain pol For more information on design information for individual infiltration and filtration practices, [http://stormwater.pca.state.mn.us/index.php/Cate
  62 KB (9,245 words) - 12:30, 14 February 2023
• Erosion prevention practices - tackifiers and soil stabilizers
  ...non-flammable, should stabilize the soil without totally inhibiting water infiltration, and should not re-emulsify when cured. Drying time is 12 to 24 hours. Liqu ...as a standalone practice, as its effectiveness improves significantly when combined with mulch.
  27 KB (3,971 words) - 18:08, 11 January 2023
• Design criteria for stormwater and rainwater harvest and use/reuse
  ...tormwater_infiltration_and_contaminated_soils_and_groundwater guidance for infiltration on sites with potential or confirmed soils or groundwater contamination]. ...site soil borings and other geotechnical analyses that help determine soil infiltration properties, depth to bedrock, depth to water, and other similar features.
  113 KB (16,329 words) - 17:02, 29 December 2022
• Recommendations and guidance for utilizing monitoring to meet TMDL permit requirements
  ...ter Act; designed or used for collecting or transporting stormwater; not a combined sewer; and not part of a publicly owned treatment works.">'''MS4'''</span>) ...en depth (see definition of “shallow”, “deep”, and “mid-depth”, above) are combined for the 4-day average calculation.
  92 KB (13,204 words) - 17:06, 20 February 2023

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