Industrial Wastewater Discharge Permit - Tri-Pac, Inc.

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Tri-Pac Inc. Industrial Wastewater Discharge Permit page 15 of 36 G. Significant Change in Discharge / or Production 1. The permittee shall notify the Control Authority of any significant changes to the permittee’s operations or system which might alter the nature, quality, or volume of its wastewater at least thirty (30) days before the change. 2. For permittees subject to categorical production based mass standards, average rates of production shall be reported in the months of July and January. If at any time the permittee becomes aware that the average production rate has changed or will change by twenty (20) percent or more, the permittee shall notify the Control Authority regarding the change. a. Any permittee operating under a permit incorporating equivalent mass or concentration limits calculated from a Production-Based Standard shall notify the Director within two (2) business days after the permittee has a reasonable basis to know that the production level will significantly change within the next calendar month. Any permittee not notifying the Control Authority of such anticipated change will be required to meet the mass or concentration limit in its permit that were based on the original estimate of the long-term average production rate. H. Flow Measurement Devices 1. The permittee shall submit a Flow Measurement Plan (FMP) within 90 days of the issuance of this permit or report as to whether the existing plan is still being implemented. The FMP shall describe, at a minimum, how the permittee will measure and record water and wastewater flow in their facility, including how wastewater discharged to the sewer will be measured, and shall include the certification statement found in Part III (A) (4) signed by the Authorized Representative [see Part IV (B) (15)]. 2. When internal process flow measurement is requested by the Director, the FMP shall also describe how the flow of any internal processes will be measured. The FMP shall be subject to review by the Control Authority. 3. The permittee shall measure and report the wastewater discharge flow for the duration of each sampling event. Totalized daily flows shall also be submitted with the Periodic Compliance Report (PCR). For batch discharges, the permittee shall report the date and the volume of each and every batch discharge. Each PCR shall include all flow measurements for the entire monitoring period covered in the report. 4. The permittee shall calibrate any flow measurement device as needed, but no less than once every twelve months. The calibration shall be performed by a qualified individual, with the appropriate equipment, and by a method acceptable to the Control Authority. The permittee shall submit all records of calibration to the Control Authority. 5. Spare level sensing and totalizing/recording instrumentation, and sampling repair parts shall be available for immediate installation upon discovery that flow measurement devices are not operating properly, or as described in the FMP. 6. The permittee shall not, at any time, remove, alter, or change any of the flow measurement devices described in the FMP. Any proposed change to the FMP shall be submitted to the Control Authority for approval. If the permittee is unable to measure flow as described in the FMP, the permittee shall immediately notify the Control Authority. I. Reporting Information and Correspondence with the Permittee