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Foothill Landfill Storm Water Pollution Prevention Plan Page 18 Attachment A of the General Permit requiring permit coverage. Furthermore, operators of landfills are required to comply with Part 445 of 40 CFR Chapter I, Subchapter N, which specifies effluent limitation guidelines (ELGs) for specific categories of industrial storm water discharges. The site also has a facility that generates electricity from landfill gas (LFG) which could also fall under these Subchapter N requirements. However, Part 423 of 40 CFR seems to only apply to those types of facilities engaged in the generation of electricity for distribution and sale through processes utilizing fossil-type fuel. The State Water Resources Control Board (SWRCB) issued the Foothill Landfill the waste discharge identification number (WDID No.) 5S39I005576 for coverage under the NPDES Industrial General Permit (IGP). As a Class III landfill, Foothill accepts commercial and household materials, construction and demolition materials, agricultural, and small pickup loads of soil or gravel material. The facility is regulated under the California Water Code, section 13000 et seq.; California Code of Regulations (CCR), Title 27, Section 20005 et seq. (Title 27); and the Code of Federal Regulations (CFR), Title 40, Section 258, et seq. (40 CFR 258 or “Subtitle D”). Foothill also accepts white goods such as refrigerators, freezers, and air conditioning units, as well as e- waste and tires, for recycling and handling elsewhere. The facility is comprised of an 800-acre parcel containing two waste management units (WMU). The two WMUs consist of two areas; LF-1 and LF-2 (refer to SWPPP Map 2). LF1 contains a single, unlined area (also referred to as Module “I”) covering approximately 80 acres. In accordance with directives of the RWQCB, LF-1 no longer receives waste. The top 11 acres (approximately) of Module “I” was closed in 2006. The remaining side slopes are provided with intermediate cover. LF-2 is comprised of multiple lined areas, with the current active area being referred to as Area 2B. The four main buildings on site are: • Scale House • Storage/Maintenance Building. • Residential structure now used as office and storage and • The Ameresco-San Joaquin, Inc. Landfill Gas to Energy Plant Scheduled facility operating hours are Monday through Saturday from 7:00 AM to 5:00 PM, excluding public holidays. (Refer to SWPPP Maps Section for a vicinity map and a facility map.) This Plan is reviewed during the Annual Evaluation required by the General Permit. Revisions to the Plan will be recorded on the “SWPPP Revisions” page immediately following the Table of Contents. The Plan will be certified and submitted via SMARTS within 30 days of a significant revision. If there have been changes but no significant revisions, then San Joaquin County is required to certify and submit no more than once every three months in a reporting year. The annual review is signed by the reviewer on the “SWPPP Annual Review” page located immediately after the “SWPPP Revisions” page.