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GENERAL PRETREATMENT INDUSTRIAL USERS APR 8 1991 PERMIT CONDITIONS 1,N'Vlr""','�'i 1ENTAL HEALTH PERMIT/SERVICES 1. Permittee shall not allow any materials or any liquid waste to be discharged into the City of Stockton sewage system which could be harmful to the system or create a hazard or nuisance, as defined in Section 7-089 . 1 through 7-089 . 18 of the City of Stockton Municipal Code. If the Permittee is found to be responsible for damage to the City of Stockton Storm or Sanitary system, or for the excessive deposits of objectionable materials in said systems , Permittee may be required to bear the cost to the City for cleaning, or shall restore the affected part of the system to proper working condition. A violation of any provision of these Permit Conditions , local codes , or the Federal Pretreatment Regulation may result in fines up to $6 ,000 per day for each violation or civil/criminal action. 2. Industrial User shall not allow any pollutants , in- cluding oxygen demanding pollutants (BOD, etc. ) to be released at a flow rate and/or pollutant concentration which a User knows , or has reason to know, will cause interference to the POTW. In no case shall a sudden, unexpected discharge have a flow rate or contain concen- trations of qualities of pollutants that exceed for any time period longer than 15 minutes more than five times the average 24-hour concentration, quantities , or flow during normal operation (7 . 089 . 11 City Code) . 3 . Permittee shall insure that all pretreatment facilities , including but not limited to flow measuring and sampling equipment , are maintained in proper working order at all times ; and that flow measuring devices are calibrated for accuracy by an approved qualified technician not less than twice per year, or upon request of an authorized City of Stockton representative. Seasonal industries will have devices calibrated prior to the start of each season. 4. In the event a required flow measuring or sampling device is found to be inoperative or providing unreliable information, as determined by authorized City of Stockton personnel, maximum quantities for parameters being measured may be used unless a previously negotiated amount can be verified by production statistics and water usage until such time as the equipment is restored to proper working order to the satisfaction of the Department of Municipal Utilities .