08-09-1993 Council Packet - Laserfiche WebLink

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Some interest groups advocate the retro-Gtting of existing storm water management systems with tertiary treatment facilities or believe that all discharges to wetlands need to be pre-treated prior to discharge. Others allege that our goals don ’t reflect the impact of natural baseline water quality on our metro lakes. Still others want to throw in the towel, saying that you can’t expect metro lakes to be high quality, that they are the casualties of urbanization. Only through the application of detailed, coordinated surface water planning can the varied goals of all the players be met. The first generation of "509" plans (•) have been successful in varying degrees m accompli shing this. Hie B\VSR beheves that the second generation "509" plans will achieve a more coordinated, uniform approach and it is, at the present, the only game in town with that regard. The problem is that now many cities are developing their local watershed management plans at the same time the playing field seems to be changing. • The MetropoliUn Surface Water Maoagement Act, Oupter 509 of the Laws of 1982, the preparation of local surface water management plans on a watershed basis. For brevity and common understanding, most people still refer to these plans as ’S09'plans. The law is now codified under Miimesota Statutes Section 103B.201 to 103B.25S. The BWSR has been compelled by the legislature to be involved in three separate activities that directly or indirectly affect storm water management; the 1991 Wetlands Protection Act (WCA), the recently adopted rules relating to ’509" plans (Chapter 8410), and the guidelines for implementing the retention requirement for developments creating more than one acre of impervious surface (MS 103B.3365). I will overview the latter two activities and my associate, Mr. Greg Larson, will overview the WCA. II. Metropolitan Surface Water Planning Rules (Chapter 8410) After over a year of deliberation by a 44 member advisoiy committee, the Board of Water and Soil Resources adopted Minnesota Rules Chapter 8410 on May 27, 1992 (effective August 1, 1993). The rules provide the process for and the content of "second generation 509 plans." Some of the specifics that Watershed Management Organizations (WMOs) and ultimately, cities and townships, must deal with regard to storm water planning include: • identifying specific goals and policies with respect to erosion • adoption of specific controls to abate both urban and rural erosion • adoption of guidelines on erosion control BMPs by reference or consistent with BWSR, MPCA, Hennepin Cbunty, or Ramsey County • adoption of controls requiring enforceable erosion control provisions on all building, grading or driveway permits • adoption of a nuisance ordinance to abate land uses that degrade water quality but are not regulated by other ordinances