(A)   Periodic compliance reports.
      (1)   All significant industrial users shall, at a frequency determined by the Director of Public Works but in no case less than twice per year (in June and December), submit a report indicating the nature and concentration of pollutants in the discharge which are limited by pretreatment standards and the measured or estimated average and maximum daily flows for the reporting period.  All periodic compliance reports must be signed and certified in accordance with § 51.26 of this subchapter.
      (2)   All wastewater samples must be representative of the user's discharge. Wastewater monitoring and flow measurement facilities shall be properly operated, kept clean, and maintained in good working order at all times. The failure of a user to keep its monitoring facility in good working order shall not be grounds for the user to claim that sample results are unrepresentative of its discharge.
      (3)   If a user subject to the reporting requirement in this section monitors any pollutant more frequently than required by the Director of Public Works, using the procedures prescribed in division (G) of this section, the results of this monitoring shall be included in the report.
   (B)   Reports of changed conditions.  Each user must notify the Director of Public Works of any planned significant changes to the user's operations or system which might alter the nature, quality, or volume of its wastewater at least 90 days before the change.
      (1)   The Director of Public Works may require the user to submit such information as may be deemed necessary to evaluate the changed condition, including the submission of a wastewater discharge permit application under § 51.26(F) of this subchapter.
      (2)   The Director of Public Works may issue a wastewater discharge permit under § 51.26(G) of this subchapter or modify an existing wastewater discharge permit under § 51.27(D) of this subchapter in response to changed conditions or anticipated changed conditions.
      (3)   For purposes of this requirement, significant changes include, but are not limited to, flow increases of 20% or greater, and the discharge of any previously unreported pollutants.
   (C)   Reports of potential problems.
      (1)   In the case of any discharge, including, but not limited to, accidental discharges, discharges of a nonroutine, episodic nature, a noncustomary batch discharge, or a sludge load, that may cause potential problems for the POTW, the user shall immediately telephone and notify the Director of Public Works and POTW Superintendent of the incident. This notification shall include the location of the discharge, type of waste, concentration and volume, if known, and corrective actions taken by the user.
      (2)   Within five days following such discharge, the user shall, unless waived by the Director of Public Works, submit a detailed written report describing the cause(s) of the discharge and the measures to be taken by the user to prevent similar future occurrences. Such notification shall not relieve the user of any expense, loss, damage, or other liability which may be incurred as a result of damage to the POTW, natural resources, or any other damage to person or property; nor shall such notification relieve the user of any fines, penalties, or other liability which may be imposed pursuant to this subchapter.
      (3)   A notice shall be permanently posted on the user's bulletin board or other prominent place advising employees whom to call in the event of a discharge described in division (1), above. Employers shall ensure that all employees, who may cause such a discharge to occur, are advised of the emergency notification procedure.
   (D)   Reports from unpermitted users.  All users not required to obtain a wastewater discharge permit shall provide appropriate reports to the Director of Public Works as the Director of Public Works may require.
   (E)   Notice of violation/repeat sampling and reporting.  If sampling performed by a user indicates a violation, the user must notify the Director of Public Works within 24 hours of becoming aware of the violation. The user shall also repeat the sampling and analysis and submit the results of the repeat analysis to the Director of Public Works within 30 days after becoming aware of the violation.  The user is not required to resample if the Director of Public Works monitors at the user's facility at least once a month, or if the Director of Public Works samples between the user's initial sampling and when the user receives the results of this sampling.
   (F)   Analytical requirements.  All pollutant analyses, including sampling techniques, to be submitted as part of a wastewater discharge permit application or report shall be performed in accordance with the techniques prescribed in 40 CFR 136, unless otherwise specified in an applicable categorical pretreatment standard. If 40 CFR 136 does not contain sampling or analytical techniques for the pollutant in question, sampling and analyses must be performed in accordance with procedures approved by EPA.
   (G)   Sample collection.
      (1)   Except as indicated in division (2), below, the user must collect wastewater samples using flow proportional composite collection techniques.  In the event flow proportional sampling is infeasible, the Director of Public Works may authorize the use of time proportional sampling or a minimum of four grab samples where the user demonstrates that this will provide a representative sample of the effluent being discharged. In addition, grab samples may be required to show compliance with instantaneous discharge limits.
      (2)   Samples for oil and grease, temperature, pH, cyanide, phenols, sulfides, and volatile organic compounds must be obtained using grab collection techniques.
   (H)   Timing.  Written reports will be deemed to have been submitted on the date postmarked. For reports which are not mailed, postage prepaid, into a mail facility serviced by the United States Postal Service, the date of receipt of the report shall govern.
   (I)   Record keeping.  Users subject to the reporting requirements of this subchapter shall retain, and make available for inspection and copying, all records of information obtained pursuant to any monitoring activities required by this subchapter and any additional records of information obtained pursuant to monitoring activities undertaken by the user independent of such requirements. Records shall include the date, exact place, method, and time of sampling, and the name of the person(s) taking the samples; the dates analyses were performed; who performed the analyses; the analytical techniques or methods used; and the results of such analyses. These records shall remain available for a period of at least three years. This period shall be automatically extended for the duration of any litigation concerning the user or the city, or where the user has been specifically notified of a longer retention period by the Director of Public Works.
(Ord. 95-05, passed 4-10-95)