(A) The reports required by §§ 51.44, 51.45, 51.46 and 51.48 shall be based on sampling and analysis performed in the period covered by the report, and performed in accordance with the techniques described in 40 CFR Part 136 and amendments thereto. Where 40 CFR Part 136 does not contain sampling or analytical techniques are inappropriate for the pollutant in question, sampling and analysis shall be performed by using validated analytical methods or any other applicable sampling and analytical procedures, including procedures suggested by the POTW or other persons, and approved by the Administrator. This sampling and analysis may be performed by the POTW in lieu of the industrial user. Where the POTW itself collects all the information required for the report, the significant industrial user will not be required to submit the report.
(B) If sampling performed by an industrial user indicates a violation, the user shall notify the POTW 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 POTW within 30 days after becoming aware of the violation, except the industrial user is not required to resample if:
(1) The POTW performs sampling at the industrial user at a frequency of at least once per month, or
(2) The POTW performs sampling at the user between the time when the user performs its initial sampling and the time when the user receives the results of this sampling.
(C) The reports required in § 51.46(A) and (D) shall be based upon data obtained through appropriate sampling and analysis performed during the period covered by the report, which data is representative of conditions occurring during the reporting period. The POTW shall require that frequency of monitoring necessary to assess and assure compliance by industrial users with applicable pretreatment standards and requirements.
(Ord. passed 2-8-94) Penalty, see § 51.99