THE AO SUPERSEDES AO (DOCKET # 97-100) ISSUED BY EPA ON 12/30/96 AND CITES THE CITY FOR VIOLATING THE EFFLUENT LIMITATIONS CONTAINED IN ITS NPDES PERMIT, FAILING TO SUBMIT A FINAL LOCAL LIMITS REPORT THAT INCLUDES TECHNICALLY-BASED LOCAL LIMITS FOR DISCHARGERS TO THE WASTEWATER COLLECTION SYSTEM, FAILING TO OPERATE AND MAINTAIN ITS POTW PROPERLY AND DISCHARGING UNTREATED WASTEWATER TO WATERS OF THE UNITED STATES FROM POINT SOURCES NOT AUTHORIZED BY A NPDES PERMIT.
THE AO REQUIRES THE CITY TO PREPARE AND SUBMIT AN ANNUAL REPORT SUMMARIZING THE MEASURES THAT WERE TAKEN BY THE CITY DURING THE PREVIOUS CALENDAR YEAR TO FURTHER REDUCE THE LEVEL OF COPPER IN THE CITY'S WASTEWATER TREATMENT FACILITY DISCHARGE. THE ORDER INCLUDES A 20 UG/L INTERIM AVERAGE MONTHLY EFFLUENT LIMITATION FOR TOTAL RECOVEABLE COPPER EFFECTIVE BEGINNING 90 DAYS FROM YOUR RECEIPT OF THE ORDER. THE INTERIM LIMIT IS A REPORT ONLY REQUIREMENT FOR THE FIRST 90 DAYS OF THE ORDER TO AFFORD THE CITY TIME TO MAKE NECESSARY ADJUSTMENTS TO COMPLY WITH THE 20 UG/L LIMIT. THE ORDER INCLUDES A PROVISION THAT REQUIRES THE PREPARATION OF A COMPREHENSIVE COPPER OPTIMIZATION REPORT IN THE EVENT THAT THE CITY VIOLATES TEH 20 UG/L INTERIM COPPER LIMIT FOR TWO CONSECUTIVE MONTHS, OR FOR THREE MONTHS W/I A TWELVE MONTH PERIOD. THE ORDER REQUIRES KEENE TO PREPARE AND SUBMIT A LOCAL INDUSTRIAL DISCHARGE LIMITS REPORT WITHIN 90 DAYS OF RECEIPT AND TO INCORPORATE THE TECHNICALLY BASED LOCAL LIMITS IN ITS SEWER USE ORDINANCE FO