§ 51.03. Non-stormwater discharges.

(a)

No person shall cause any non-stormwater discharges to enter the city's municipal separate storm sewer system, or to any surface waters within the city, unless specifically exempted under paragraph (b) of this section.

(b)

The following allowable discharges are exempted from this section:

(1)

Non-stormwater that is authorized by an NPDES point source permit obtained from the MPCA;

(2)

Fire fighting activities and fire suppression systems;

(3)

Dye testing for which the city has received written notification prior to the time of the test;

(4)

Water line flushing or other potable water sources;

(5)

Landscape irrigation or lawn watering;

(6)

Diverted stream flows;

(7)

Rising groundwater;

(8)

Groundwater infiltration to storm drains;

(9)

Uncontaminated pumped groundwater;

(10)

Foundation or footing drains (but not including active groundwater dewatering systems);

(11)

Air conditioning condensation;

(12)

Springs;

(13)

Non-commercial washing of vehicles;

(14)

Natural riparian habitat and wetland flows;

(15)

Dechlorinated swimming pool water;

(16)

Street wash water discharges;

(17)

Activities undertaken by the city, or by written authority of the city, deemed necessary to protect public health, welfare, or safety; and,

(18)

Any other water source not containing a pollutant.

(c)

No person shall intentionally dispose of substances including, but not limited to, grass, leaves, dirt, or landscape material into the city's municipal separate storm sewer system or to any surface waters within the city.

(Ord 13-6, § 1, 2-13-13)