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White Slough Water Poll utionfoontrol Plant -4- 21 March 2000 Inspection Report In addition to installing alarms, Mr. Kerlin indicated that he has developed contingency procedure for agency notification in the event of a future chlorine release. The procedure is attached as Attachment 3. Based on our discussions with Mr. Kerlin and Mr. Moroz. it is my understanding that there is no current written standard operating procedure for the plant or chlorination/dechlorination processes. APPLICABLE PERMIT CONDITIONS: The following permit conditions are directly or indirectly related to the violation that occurred on 4 January 2000: 1. NPDES permit CA0079243,WDR Order No. 93-030,Effluent Limitation B.2. prohibits discharge of daily maximum chlorine residual in excess of 0.1 mg/I from 16 October through 31 May. 2. NPDES permit CA0079243, WDR Order No. 93-030, Receiving Water Limitation F.4 "The discharge shall not cause chlorine to be detected in the receiving water in concentrations greater than 0.01 mg/1." 3. Standard Provision and Reporting Requirement. General Provision A.6. states, "The Discharger shall at all times properly operate and maintain all./acilities, systems of the treatment and control including sludge use and disposal facilities (and related appurtenances) that are installed or used to achieve compliance with this Order." "Proper operation and maintenance includes adequate laboratory controls and appropriate quality assurance procedures. This provision requires the operation of backup or auxiliary facilities or similar systems that are installed by the Discharger only when necessary to achieve compliance with this Order." 4. Standard Provision and Reporting Requirement, General Provision A.17. states, "The Discharger shall take all reasonable steps to minimize any adverse effects to water of the State or users of those waters resulting from any discharge or sludge use or disposal in violation of this Order. Reasonable steps shall include such accelerated or additional monitoring as necessary to determine the nature and impact of the noncomplying discharge or sludge use or disposal." 5. Standard Provision and Reporting Requirement, General Reporting Requirement B.1. states, "In the event the Discharger does not comply or will be unable to comply for any reason, with any prohibition, daily maximum effluent limitation, or receiving water limitation of this Order, the Discharger shall notify the Board by telephone (916) 255-3000 within 24 hours of having knowledge of such noncompliance, and shall con firm this notification in writing within S days, unless the Board waives confirmation. The written notification shall state the nature, time, duration, and cause of noncompliance, and shall describe the measures being taken to remedy the current noncompliance and,prevent recurrence including, where applicable, a schedule of implementation. Other noncompliance requires written notification as above at the time of the normal monitoring report."