A Multi-Sector General Permit (MSGP) is issued by the Arizona Department of Environmental Quality (ADEQ) for industrial activities with selected Standard Industrial Classifications (SIC) codes. These activities can contribute pollutants to surface waters. The methods of preventing pollutants from entering stormwater include the following:
- Keeping pollutants out of the rain,
- Maximizing the porous area & infiltrating runoff,
- Collecting the flow on-site,
- Maintaining riparian buffers,
- Treating the water before it flows off the site, and
- Obtaining an Industrial Wastewater Discharge permit for regulated wastes.
|
|
The SIC codes are grouped into the following sectors:
A. Timber Products
B. Paper and Allied Products
C. Chemicals and Allied Products
D. Asphalt Paving, Roofing Materials, Lubricants
E. Glass, Clay, Cement & Gypsum Products
F. Primary Metals
G. Metal Mining
H. Coal Mines & Related Facilities
I. Oil & Gas Extraction
J. Non-metallic Mineral Mining & Dressing
K. Hazardous Waste Treatment, Storage or Disposal Facilities
L. Landfills, Land Application Sites, Open Dumps
M. Automotive Salvage yards
N. Scrap Recycling Facilities
O. Steam Electric Generating Facilities
P. Land Transportation and Warehousing
Q. Water Transportation |
R. Ship and Boat Building and Repair Yards
S. Air Transportation Facilities
T. Treatment Works
U. Food and Kindred Products
V. Textile Mills, Apparel & Other Fabric Product
Manufacturing; Leather Products
W. Furniture and Fixtures
X. Printing and Publishing
Y. Rubber, Miscellaneous Plastic Products, &
Misc. Industries
Z. Leather Tanning and Finishing
AA. Fabricated Metal Products
AB. Transportation Equipment; Industrial
Commercial Machinery
AC. Electronic, Electrical , Photographic and
Optical Goods
AD. Stormwater Discharges Designated by the
Director as Requiring Permits |
This permit is required by the Clean Water Act (CWA) and functions ”to restore and maintain the chemical, physical, and biological integrity of the Nation’s waters.” The waters include desert washes, intermittent streams, lakes, wetlands, and their tributaries.
Permit holders need to file an annual report by July 15th for the reporting period of June 1st through May 31st.