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t_ WASTE DISCHARGE REQUIREMENTS -3- FORWARD INCORPORATED WASTE MANAGEMENT FACILITY CLASS II LANDFILLS CLASS III LANDFILLS CLASS II SURFACE IMPOUNDMENT CLASS II LAND TREATMENT UNIT CLOSURE OF CLASS I LANDFILL SAN JOAQUIN COUNTY 5. The Discharger proposes to discharge wastes containing greater than one percent (>1%) friable asbestos in WMUs D and H. These wastes are classified as 'hazardous' under Title 22 of CCR. However, because these wastes do not pose a threat to ground water quality, Section 25143.7 of the Health and Safety Code permits their disposal in any landfill which has waste discharge requirements that specifically permit the discharge, provided that the wastes are handled and disposed of in accordance with applicable statutes and regulations. 6. Coal ash is discharged to WMU E, a Class II landfill unit. Data submitted by the Discharger indicate that coal ash, if commingled with wastes that produce acidic leachate, could release pollutants in concentrations which could cause degradation of waters of the state. However, the Discharger's data also show that in the absence of acidic conditions, coal ash does not pose such a water quality threat. In addition, the data show that coal ash itself is not capable of generating acidic leachate. 7. The State Department of Health Services (DHS) has granted shredder waste a variance, for the purposes of disposal , from hazardous waste management requirements pursuant to Section 66310, Title 22 of the CCR. Shredder waste is any waste which results from the shredding of automobile bodies (from which batteries, mufflers, and exhaust pipes have been removed) , household appliances, and sheet metal . 8. 'Hazardous waste' which has received a variance from DHS for the purposes of disposal is classified as a 'designated waste' pursuant to Section 2522 of Subchapter 15. 9. 'Designated waste' may be disposed of in a Class III WMU provided that, prior to disposal , the Discharger establishes to the satisfaction of the Board that the waste presents a lower risk of degrading water quality than is indicated by its classification. 10. The State Water Resources Control Board adopted Resolution 87-22 on 19 March 1987. This Resolution allows the discharge of shredder wastes to Class III landfills where waste discharge requirements allow such disposal . 11 . The Discharger proposes to discharge shredder waste to WMU D and H. 12. The Discharger proposes to discharge sewage and water treatment sludges to selected portions of WMU D and WMU H as described in Finding 48.