7.38.340 RECORD KEEPING REQUIREMENTS.

(a) Users subject to the reporting or record keeping requirements specified in waste discharge permits or other formal directive shall make available for inspection and copying all monitoring data, pretreatment system operation and maintenance records, documentation associated with Best Management Practices, and any other information required by the Director to be kept by the user.

(b) Records shall be retained by the user for a period of at least three years from the date of the report to which these records are applicable or three years from the date of any investigation or enforcement action undertaken by the Director, State or USEPA has concluded, or such other time as may be directed by the Director.