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-TV - subcategories. They are cement manufacturing (40 CFR Part 411); feedlots (40 CFR Part 412); fertilizer manufacturing (40 CFR Part 412); petroleum refining (40 CFR Part 419); phosphate manufacturing (40 CFR Part 422); steam electric power generation (40 CFR Part 423); coal mining (40 CFR Part 434); mineral mining and processing (40 CFR Part 436); ore mining and dressing (40 CFP. Part 440); and asphalt emulsion (40 CFR Part 443). A facility operator whose facility falls into one of these general categories should examine the effluent guidelines to determine if the facility is categorized in one of the subcategories that have storm water effluent guidelines. If a facility is classified as one of those subcategories, that facility is subject to the standards listed in the CFF for that category and is subject to this General Permit. This General Permit contains additional requirements (see Section B.6.) for facilities with storm water effluent limitations guidelines. Calory _._5 Dischargers Inactive or closed landfills, land application sites, and open dumps that have received industrial r�astes (Category 5) may be subject to this General Permit unless the storm water discharges from; the sites are already regulated by an NPDES permit issued by the appropriate Regional Water Board. Facility operators of closed landfills that are regulated by waste discharge requirements (WDRs) rc:ay be required to comply with this General Permit. Tn some cases, it may be appropriate for closed landfills to be covered by the State 'mater Board's General Permit during closure activities. The Construction Activities General Permit should cover new landfill construction. Facility operators should contact their Regional Water Board to determine the appropriate permit coverage. Category 10 Dischargers Facility operators of Category 10 (light industry) facilities are not subject to this General Permit if they can certify that the following minimum conditions at their facilities are met: 1. All prohibited non -storm water discharges have been eliminated or otherwise permitted. 2. All areas of past exposure have been inspected and cleaned, as appropriate. 3. All materials related to industrial activity (including waste materials) are not exposed to storm water or authorized non -storm water discharges.