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• • r y n <br /> 14 <br /> Kinder Morgan Energy Partners, Holt -2- 1 August 2000 <br /> Inspection Report <br /> groundwater to kill iron-facilitating bacteria that cause bio fouling of the treatment system. A <br /> sequestrian agent is also used to prevent scaling and foaming within the air stripper. <br /> INSPECTION OF FACILITY: <br /> Upon arrival at the site, the system was off-line undergoing filter replacement; however, was back on- <br /> line prior to my departure. The inspection of the facility, with respect to the permitted wastewater <br /> discharge, found it to be adequately operated and maintained. The flow metering was functional at the <br /> time of the inspection. Copies of the NPDES permit and San Joaquin Valley Unified Air Pollution <br /> Control District Permit to Operate were present on-site. <br /> 4 fff <br /> Oil/Water Separator. Air Stripper. <br /> Mr. Morrison indicated that approximately 8 gallons per day of liquid sodium hypochlorite are used to <br /> prevent bio fouling by iron bacteria to the treatment system and that the carbon filters typically remove <br /> any residual chlorine. It is unclear to me if residual chlorine loading to the carbon filters reduces the <br /> filter efficiency or capacity to remove other organics including the compounds of concern. I am also <br /> concerned that residual chlorine is not being monitored in the effluent. The General Order does not <br /> cover the use of chlorine and sequestrian agents. <br /> �r <br /> Aqueous Granular Activated Carbon Sodium Hypochlorite Storage <br />