Stricter Stormwater Code Gets Final OK

At its Nov. 4, 2010 meeting, the Ann Arbor city council gave final approval for a change to the city’s stormwater code. Under the new requirements, anytime more than 200 square feet of impervious surface is added to single and two-family residential property, controls must be put in place to handle stormwater runoff from a “first flush” downpour. The “first flush” is the runoff from the first 1/2 inch of rain during any rainstorm.  About 40% of land area in the city of Ann Arbor is zoned for single-family and two-family uses. A move to postpone the measure by Marcia Higgins died for lack of a second.

This brief was filed from city council chambers. A more detailed report of the meeting will follow: [link]