§ 1-11. Water quality design criteria requirements.

A.

In order to protect the quality of state waters and to control the discharge of stormwater pollutants from regulated activities, the following minimum design criteria and statewide standards for stormwater management shall be applied to the site.

1.

New development. The total phosphorus load of new development projects shall not exceed 0.41 pounds per acre per year, as calculated pursuant to section 1-12.

2.

Development on prior developed lands.

a.

For land-disturbing activities disturbing greater than or equal to one acre that results in no net increase in impervious cover from the predevelopment condition, the total phosphorus load shall be reduced at least twenty (20) percent below the predevelopment total phosphorus load.

b.

For regulated land-disturbing activities disturbing less than one acre that result in no net increase in impervious cover from the predevelopment condition, the total phosphorus load shall be reduced at least 10% below the predevelopment total phosphorus load.

c.

For land-disturbing activities that result in a net increase in impervious cover over the predevelopment condition, the design criteria for new development shall be applied to the increased impervious area. Depending on the area of disturbance, the criteria of subdivisions a. or b. above, shall be applied to the remainder of the site.

d.

In lieu of subdivision c., the total phosphorus load of a linear development project occurring on prior developed lands shall be reduced twenty (20) percent below the predevelopment total phosphorus load.

e.

The total phosphorus load shall not be required to be reduced to below the applicable standard for new development unless a more stringent standard has been established by the City.

B.

Compliance with subsection A. of this section shall be determined in accordance with section 1-12.

(Ord. No. 3337, 4-22-14, eff. 7-1-14)

(Ord. No. 3337, 4-22-14, eff. 7-1-14)