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Monthly Grab <br /> Oil and grease <br />' • Gold Bond has had no significant problems in complying with <br /> requirements for the above parameters . <br /> Identified Concerns <br /> Regional Board staff sampled the cooling water reservoirs on two <br /> • occasions in 1985. In the first samples taken in May, 1985 high <br /> levels of the following chlorinated organics and phthalates were <br /> detected based on EPA Method 624 ( Purgeable Organics ) and 625 <br /> (Base/Neutral and Extractables) analyses: <br /> Chlorinated Organics <br /> • <br /> 1 ,1 , 2 - trichloroethane <br /> 1 , 1 , 2, 2 - tetrachloroethane <br /> 1 , 1 - dichloroethylene <br /> Phthalates <br /> • <br /> 2 - ethylhexyl phthalate <br /> butylbenzyl phthalate <br /> di-n-butyl phthalate <br /> di-n-octyl phthalate <br /> • In the September, 1985 samples , EPA Method 601 analyses were <br /> performed. Results of this sampling and analysis indicated that <br /> the above three halocarbons which were high in May were below a <br /> detection limit of 0.5 ug/l in September. The EPA 601 analysis <br /> does not test for phthalates . <br /> • Based on the May sampling results, the Regional Board has <br /> requested testing of the supply wells and the "hot side" <br /> reservoir to assess the presence of undesirable levels of <br /> chlorinated organics and phthalates in the cooling water <br /> discharge. The Regional Board has also requested that an <br /> assessment be made of the potential for formation of chlorinated <br /> • compounds through the cooling water chlorination process and the <br /> potential contamination of the cooling water with chlorinated <br /> solvents . <br /> Discussion <br /> • With only two samplings in hand, it is not possible to assess <br /> either the existence, magnitude or cause of the identified <br /> problem. As the Regional Board has recommended, the proper <br /> course of action is to take additional samples to determine the <br /> extent of the problem, if any. until results from this sampling <br /> • are available, the assessment of potential causes for the problem <br /> is largely conjecture. <br /> • 6 <br />