Mineral mining and processing (SIC 14) and associated activities, such as mobile hot plants, concrete batch plants and stockpiles are covered by the mineral mining storm water permit. Non-mineral mining activities and fuels, such as coal, should use the general industrial storm water permit.
Please note that the general mineral mining storm water permit is not available to facilities where storm water runoff has the potential to discharge to class 1 waters. Facilities may apply for coverage under an individual storm water permit.
***All existing authorizations for mineral mining stormwater coverage will be continued automatically, and will NOT expire on 3/31/2023. A new Wyoming Mineral Mining General Permit (MMGP) is under development, and final issuance is anticipated in 2023. No action is necessary at this time for existing permittees who wish to retain their permit coverage. Once the MMGP renewal is issued, an announcement will be sent out to permittees, with instructions on how to renew their authorizations. WDEQ will continue to accept applications for new MMGP authorizations, with a maximum fee of $200 to cover the period of time between now and the issuance of the new MMGP.
If you are aware of personnel changes at your organization that affect the contact information for your storm water permit(s), please contact Anita Rehner (307-777-5622, email@example.com) or Katy Sprouse (307-777-7570, firstname.lastname@example.org). This will ensure that your organization receives email updates. Permittees are always welcome to contact us with questions as we proceed.
Beginning July 1, 2013 payment of permit fees for individual permits and general permit authorizations are required to be submitted with the permit application or NOI form. All storm water authorizations have variable fees that must be calculated depending upon the NOI date. The “Fee Calculator” should be used to determine the proper amount to be submitted with each NOI. Checks should be made out to the “Dept. of Environmental Quality, Water Quality Division.