Background <br /> The West Eugene Wetlands Plan in the <br /> late 1980's early 1990's lead to <br /> development of the: <br /> Comprehensive Stormwater Management <br /> Plan (CSWMP) in 1992, which. was the <br /> <br /> foundation for the: <br /> Stormwater Management Plan in the MS4 <br /> Stormwater Permit (1993) <br /> <br />