Randolph Air Force Base Wastewater Survey, Randolph AFB TX.

This wastewater characterization effort was conducted to meet 5 goals identified by Randolph AFB RAFB Civil Engineering Staff 1 Assess RAFBs compliance with the Cibolo Creek Municipal Authority Industrial Waste Order IWO 2 Assess OilWater Separator OWS performance and determine presence of chemicals inhibitory to OWS operation 3 Assess likelihood and extent of, and contributing factors to storm water infiltrationinflow 4 Identify potential solutions to occasionally high chemical oxygen demand COD levels 5 Determine levels of metals in base effluent. These and other considerations are discussed in this report. RAFB generally complies with the IWO with the exception of most metals. The IWO discharge limits for metals are excessively restrictive and compliance will doubtably be attainable with the limits as established. OWSs generally perform well with the exception of two units outside the transportation maintenance building. COD values in composite samples were not above the IWO limit, so OEBW recommends that RAGB collect a split sample with CCMA to compare results. jg p.3