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V WASTE DISCHARGE REQUIIRTrMENTS ORDER NO. R5-2002-0072 -10- GEORGE REED,INC. AND 711 MATERIALS,INC. AGGREGATE MINE AND WASTEWATER SYSTEM SAN JOAQUIN COUNTY signature(s) and seal(s) of the registered professional(s) in a manner such that all work can be clearly attributed to the professional responsible for the work. 2. The following reports shall be submitted pursuant to Section 13267 of the California Water Code and shall be prepared by registered professionals as described by Provision No. E.1: a. By 31 May 2002, the Discharger must submit a Notice of Intent to seek coverage under the National Pollutant Discharge Elimination System (NPDES) General Permit No. CAS000001 for Discharges of Storm Water Associated With Industrial Activities. b. By 31 July 2002, the Discharger shall submit a report that describes the freeboard measurement locations for all ponds, or a pond location area. The freeboard measurement location shall be consistent with Discharge Specification B.14. c. By 31 July 2002, the Discharger shall submit a report describing how the wastewater flow rates are metered at locations that meet compliance with the MRP. If meters do not presently exist, meters shall be installed by this date. Flow rate measurement is required at the aggregate washing facility effluent,the asphaltic concrete plant effluent, and the concrete batch plant. d. By 31 July 2002, the Discharger shall submit an Interim Operations and Maintenance Plan, including (a) notification procedures and actions to be taken when the wastewater in the ponds fail to meet specified requirements for freeboard,pH, or creates a condition of pollution or nuisance, (b) weed abatement measures and vector control practices, and(c) a berm inspection and maintenance program. This plan shall also include the procedures that will be followed during the event of an unauthorized discharge to surface water. e. By 31 July 2002,the Discharger shall submit a report describing the concrete batch plant washout facility containment structure and the operation of the recycling system. f. By 31 July 2002, the Discharger shall submit a Soluble Metal Report that determines the concentration of soluble metals in the wastewater discharged to the concrete batch plant washout facility. The constituents to be monitored shall at a minimum include all the pollutants specified in Title 22 of the California Water Code, Section 66261.24 (2)(A), including chromium(VI) compounds. The sample data must be of sufficient quality to determine if the waste is a designated waste. The report shall also specify if the wastewater discharged from the concrete batch plant, concrete mixing truck rinse water, and other wastewater discharged to the washout facility should be classified as a designated waste. The report must include the rationale for the classification. If the concentration of soluble metals exceeds water quality standards, then the Discharger shall submit a Report of Waste Discharge that describes a storage/containment system that is capable of storing designated waste in conformance with the regulations contained in Title 27 of the California Water Code.