Laserfiche WebLink
n ;-3 <br /> Li <br /> CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD <br /> CENTRAL VALLEY REGION <br /> ORDER NO. <br /> NPDES NO. CA0081787 <br /> WASTE DISCHARGE REQUIREMENTS <br /> FOR <br /> THE MARLEY COOLING TOWER COMPANY <br /> STOCKTON, SAN JOAQUIN COUNTY <br /> The California Regional Water Quality Control Board, Central Valley Region, <br /> (hereafter Board) finds that: <br /> 1. The Marley Cooling Tower Company (hereafter Discharger) submitted a Report <br /> of Waste Discharge, dated 29 August 1985, to discharge waste under the <br /> National Pollutant Discharge Elimination System (NPDES) . <br /> 2. The Discharger owns a cooling tower fabrication plant in Section 55, T2N, <br /> R7E, MOB&M in the East Stockton Area, San Joaquin County (Attachment A) . As <br /> a result of past practices associated with the wood treatment operations at <br /> the site, soil and ground water contamination has occurred. The primary <br /> chemicals of concern are chromium, copper and arsenic. Chromium is <br /> present at elevated levels in both the soil and ground water. Arsenic and <br /> copper have not been detected in ground water and appear to be isolated to <br /> the upper 10 feet of soil . <br /> 3. The Board on 28 November 1984, ratified a Settlement Agreement between the <br /> Department of Health Services, the Discharger, and the Board which requires <br /> the Discharger to: define the extent of contamination, develop a miti- <br /> gation plan, and implement all measures necessary to remediate existing <br /> site contamination. The Discharger will perform these tasks in accordance <br /> with the compliance time schedule contained in the agreement. <br /> 4. The Discharger proposes to discharge waste from an ion exchange treatment <br /> system (Attachment B) into the Stockton Diverting Canal , at a point 1/4 <br /> mile east of the site. The Stockton Diverting Canal enters the Calaveras <br /> River, a water of the United States. <br /> 5. The Discharger is proposing to implement site improvements which will <br /> minimize the contaminants contained in the stormwater prior to treatment. <br /> The measures include segregating contaminated and noncontaminated storm <br /> water streams through the use of curbing and covering areas used for <br /> treated wood storage. <br />