Under this division, periodic compliance reports are required as follows:
1. Significant users shall submit to the WRA Director, during the months of January and July, a report indicating the nature, concentration, and flow of pollutants in the effluent which are limited by permit or pretreatment standards for the preceding six-month period. This report shall include a record of the monthly average flows and the daily flow for each analysis date during the reporting period. At the discretion of the WRA Director and in consideration of such factors as local high or low flow rates, holidays, budget cycles, etc., the WRA Director may agree to alter the months during which the reports are to be submitted. More frequent reports may be required by the WRA Director.
2. The WRA Director may impose mass limitations on users. In such cases, the report required by Subsection 1 of this section shall indicate the mass of pollutants regulated by pretreatment standards in the effluent of the user. All analyses shall be performed using Environmental Protection Agency approved methods using sampling techniques approved by the Iowa Department of Natural Resources.
3. Users shall meet the certification and signatory requirements in Section 100.35 of this division for each report submitted under this section. Where the WRA itself collects all the information required for the report, including flow data, the industrial user will not be required to submit a periodic compliance report.
4. A user must notify the WRA Director of all violations identified as a result of self-monitoring to the POTW by telephone, during normal business hours, within 24 hours of the time the user becomes aware of such violation. The user must also submit the results of repeat analyses to the WRA within 30 days after becoming aware of the violation, together with a complete report on all steps taken to resolve the violation. The user need not repeat the analyses if:
A. The WRA performs sampling of the industrial user at a frequency of at least once per month; or
B. The WRA performs sampling of the user between the time when the user performs its initial sampling and the time when the user receives the results of this sampling.
5. A user who monitors any pollutant more frequently than required by the WRA or who self-monitors in addition to WRA monitoring, using Environmental Protection Agency methods or standard methods, shall report the monitoring results to the WRA Director in accordance with Subsections 1, 3 and 4 of this section.