All industrial users are required to promptly notify the POTW, in advance, of any substantial change in volume of character of pollutants in the user's discharge to the POTW. For the purposes of this provision, an industrial user is in significant noncompliance if its violation meets the criteria of Section 925.18(c)(d) and (h). A significant industrial user is in significant noncompliance if its violation meets any of the following criteria:
(a) Chronic violations of wastewater discharge limits, defined here as those in which sixty-six percent (66%) or more of all of the measurements taken during a six-month period exceed (by any magnitude) the daily maximum limit or the average limit for the same pollutant parameter including instantaneous limits;
(b) Technical review Criteria (TRC) violations, defined here as those in which thirty-three percent (33%) or more of all of the measurements for each pollutant parameter taken at any permitted monitoring point during a six-month period equal or exceed the product of the numeric pretreatment standard or requirement including instantaneous limits, multiplied by the applicable TRC (TRC = 1.4 for BOD, TSS, fats, oil and grease, and 1.2 for all other pollutants except pH);
(c) Any other violation of a pretreatment effluent limit (daily maximum or longer term average, instantaneous limit, or narrative standard) that the Director determines has caused, alone or in combination with other discharges, interference or pass through (including endangering the health or POTW personnel or the general public);
(d) Any discharge of a pollutant that has caused imminent endangerment of human health, welfare or to the environment or has resulted in the POTW's exercise of emergency authority to halt or prevent such a discharge;
(e) Failure to meet, within ninety days after the schedule date, a compliance schedule milestone contained in a wastewater discharge permit or enforcement order for starting construction, completing construction or attaining final compliance;
(f) Failure to provide, within forty-five days after the due date, required reports such as Baseline Monitoring Reports, ninety days compliance reports, periodic self-monitoring reports, and reports on compliance with compliance schedules or any other reports required by the Director.
(g) Failure to accurately report noncompliance; or
(h) Any other violation or group of violations including a violation of BMP's, which the Director determines will or has adversely affected the operation or implementation of the POTW's pretreatment program.
(Ord. 2010-32. Passed 9-23-10.)