News and Announcements:
Mohave County Stormwater Management Ordinance
On September 30, 2016, the Arizona Department of Environmental Quality (ADEQ) reissued the Arizona Pollutant Discharge Elimination System (AZPDES) General Permit for Small Municipal Separate Storm Sewer Systems (AZG2016-002). Section 3.2 of the permit mandates that the permittee (e.g. Mohave County) "must establish and exercise enforcement procedures to comply with this permit." To meet this mandate, Mohave County has created the Mohave County Stormwater Management Ordinance.

A draft of the ordinance is available for review and comment at the Mohave County Flood Control District office, 3250 E. Kino Ave., Kingman, Arizona and online here. Mohave County encourages public participation in the crafting of this Ordinance. Please send comments to stormwater@mohavecounty.us. We look forward to your feedback.


Small Municipal Separate Storm Sewer System (MS4) Permit 
On September 30, 2016, the Arizona Department of Environmental Quality (ADEQ) reissued the Arizona Pollutant Discharge Elimination System (AZPDES) General Permit for Small Municipal Separate Storm Sewer Systems (AZG2016-002). This permit, which is part of the Clean Water Act, is designed to protect stormwater quality by requiring municipalities to apply for authorization prior to releasing runoff into navigable waters.

The effective MS4 Permit can be found here.

As results of the 2010 Census, two areas with in the unincorporated limits of the Mohave County adjacent to Lake Havasu City were deemed to have sufficient population density to be considered "urbanized areas". Given this designation Mohave County is required to comply with AZG2016-002. The permit areas can be viewed at the following links.
Horizon 6 Permit Area
North Lake Havasu Permit Area


Stormwater Management Program 
In complying with AZG2016-002, Mohave County has created the Mohave County Stormwater Management Program. The Program incorporates the minimal control measures that must be implemented and enforced by Mohave County as part of the MS4 Permit. The Program was adopted on September 18, 2017 and can be viewed here.

Multi-Sector General Permit 
Under the AZPDES, ADEQ regulates stormwater discharges for industrial facilities based on the activities that occur at the facility. There are 29 such industrial activities under this permit. For this purpose, ADEQ has issued the General Permit for Stormwater Discharges Associated with Industrial Activities from Non-Mining Facilities to Waters of the United States (AZMSG2010-002), commonly referred to as the Non-Mining MSGP. Starting in September 2017, Mohave County will verify that commercial/industrial facilities located within the MS4 area have obtained coverage under this permit. Facilities that have not obtained coverage will be asked to do so. The effective MSGP can be found here.
 

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The mission of the Stormwater Management Program is to ensure that our rivers, lakes, and dry stream beds remain free of trash, pollutants, and pathogens for generations to come.

Contact Us:  3250 E. Kino Ave., Kingman, AZ 86409 | Phone: 928-757-0925 | Fax: 928-757-0912 | stormwater@mohavecounty.us

3250 E Kino Ave
Kingman, AZ 86409
(928) 757-0925