Review/Update Actions

The Waste Discharge Requirements WDRs are to be reviewed according to a schedule based upon their TTWQ Category as follows: TTWQ 1= Every 5 years, TTWQ 2= Every 10 years and TTWQ 3= Every 15 years. TTWQ 1 has the highest priority. There are three possible actions which may result from the WDR review/update process: rescission, continuance, or revision. A revision requires the issuance of a new WDR with a new adoption date. No formal Regional Board action is required to continue WDRs without change. A memorandum signed by the Regional Board Executive Officer (EO), documenting that the review concluded that the existing WDR is appropriate and that no changes are necessary at this time, is placed in the WDR file.