Article V. Reporting and Compliance – Requirements
13.90.350 Baseline monitoring reports.
(1) When standards for an industry category are published (promulgated), users that perform that process and either currently discharge or are scheduled to discharge wastewater from the process to the POTW, must submit a baseline monitoring report to the Public Works Director. This report must contain the information listed in PMC 13.90.370. The report is due within 180 days after the effective date of a categorical pretreatment standard, unless the final administrative decision on a category determination comes later (reference 40 CFR § 403.6(a)(4) for details in that event).
(2) Users that wish to begin discharging wastewater to the POTW from operations subject to categorical standards after EPA has published the standards (called new sources), shall also submit a baseline monitoring report to the Public Works Director containing the information listed in subsection (3) of this section. However, for new sources, the report must be provided at least 90 days before desiring to discharge. New sources shall describe the method of pretreatment they intend to use to meet applicable categorical standards. Because monitoring data will not be available for proposed facilities, new sources instead must provide estimates of the anticipated flow rates and quantity of pollutants to be discharged.
(3) The baseline monitoring report shall include the following information:
(a) All information required in PMC 13.90.230(1)(a) through (1)(i);
(b) Additional conditions for existing sources measuring pollutants:
(i) Users shall take a minimum of one representative sample to compile the data for the baseline monitoring report;
(ii) Users shall take samples immediately downstream from pretreatment facilities if such exist or immediately downstream from the regulated process if no pretreatment exists. If the user mixes other wastewaters with the regulated wastewater prior to pretreatment, the user must provide the flows and concentrations necessary to apply the CWF of PMC 13.90.060(3) and 40 CFR § 403.6(e). Where the user wants an alternate concentration or mass limit, and it is allowed by federal rules at 40 CFR § 403.6(e), the user shall propose the adjusted limit and provide supporting data to the control authority;
(iii) Sampling and analysis shall be performed in accordance with PMC 13.90.440, Sample collection, and PMC 13.90.450, Analytical requirements;
(iv) The Public Works Director may allow the report to use only historical data if the data are good enough to allow the evaluation of whether (and which) industrial pretreatment measures are needed; and
(v) The baseline report shall indicate the time, date, place of sampling, and methods of analysis. The user shall certify that the sampling and analysis presented is representative of normal work cycles and expected pollutant discharges to the POTW.
(c) Compliance Certification. A statement, reviewed by the user’s authorized representative as defined in PMC 13.90.040 and certified by a qualified professional, such as a professional engineer, indicating whether pretreatment standards are being met on a consistent basis, and, if not, whether additional O&M and/or additional pretreatment steps are required to meet the pretreatment standards and requirements.
(d) Compliance Schedule. While new sources must install the treatment required for meeting the pretreatment standards prior to operation, existing sources may be granted a compliance schedule where they must provide additional pretreatment and/or O&M to meet the pretreatment standards. In such cases, the user shall propose the shortest schedule by which they can provide the additional pretreatment and/or O&M. The completion date which the user proposes in this schedule may not be later than the compliance date established for the applicable pretreatment standard. Any compliance schedule authorized pursuant to this section must also meet the requirements set out in PMC 13.90.360.
(e) Signature and Report Certification. All baseline monitoring reports must be certified in accordance with PMC 13.90.480(1) and signed by an authorized representative as defined by PMC 13.90.040. [Ord. 4169 § 1, 2014; Code 1970 § 13.62.060(A).]