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HomeMy WebLinkAbout07.b. Receive draft Public Notice of Industrial Users in Significant Non-Compliance for 2020 Page 1 of 3 Item 7.b. CENTRALSAN Jdf A- hom CENTRAL CONTRA COSTA SANITARY DISTRICT January 21, 2021 TO: HONORABLE BOARD OF DIRECTORS FROM: TIM POTTER, ENVIRONMENTAL COMPLIANCE SUPERINTENDENT REVIEWED BY: LORI SCHECTEL, ENVIRONMENTALAND REGULATORY COMPLIANCE DIVISION MANAGER JEAN-MARC PETIT, ENGINEERINGAND TECHNICAL SERVICES DEPARTMENT DIRECTOR ROGER S. BAILEY, GENERAL MANAGER SUBJECT: RECEIVE INFORMATION ON INDUSTRIAL USERS OF CENTRAL SAN'S PUBLIC SEWER SYSTEM FOUND TO BE IN SIGNIFICANT NON- COMPLIANCE FOR 2020 Federal pretreatment regulations establish standards that apply to wastewater agencies with approved pretreatment programs. One of these standards is to use specified criteria to evaluate violations that are documented at regulated businesses to determine if the business is in Significant Non-Compliance (SNC). When a business is determined to be in SNC, Central San is required to report this status in reports submitted to the Regional Water Quality Control Board and to publish information about the violation in the newspaper at least annually. For calendar year 2020, two businesses were determined to be in SNC: • Contra Costa Water District submitted a Periodic Compliance Report (PCR) more than 45 days after the due date which meets the SNC criteria for late reporting. Contra Costa Water District submitted the PCR and has returned to compliance. Environmental Compliance does not anticipate taking further enforcement action for this violation. • Diablo Valley College conducted compliance sampling for the discharge from the Life Science Building that resulted in copper being measured in concentrations that exceeded Central San's Local Discharge Limit (LDL)twice during the fourth quarter reporting period. The level of exceedance met the Technical Review Criteria established for SNC. Diablo Valley College resampled the discharge which documented compliance with the copper LDL. These discharge violations occur with a history of other discharge violations from previous years, representing a pattern of non-compliance. Diablo Valley College plans to conduct maintenance on the pretreatment unit in January 2021 to improve the unit's performance in removing regulated pollutants. Diablo Valley College was cited in 2020 for failing to maintain the grease interceptors serving the cafeterias. This citation does not subject Diablo Valley College to SNC but is included in the SNC notice to provide a complete summary of their January 21, 2021 Regular Board Meeting Agenda Packet- Page 74 of 119 Page 2 of 3 compliance status for 2020. Environmental Compliance staff will continue to work with these businesses to maintain compliance with the pretreatment standards. Attached is the SNC notice that will be published in the Contra Costa Times in early February 2021. Strategic Plan Tie-In GOAL TWO: Environmental Stewardship Strategy 1—Achieve 100% compliance in all regulations ATTACHMENTS: 1. Draft Notice for Publication of Businesses in Significant Non-Compliance for 2020 January 21, 2021 Regular Board Meeting Agenda Packet- Page 75 of 119 Page 3 of 3 DRAFT PUBLIC NOTICE CENTRAL CONTRA COSTA SANITARY DISTRICT NOTICE OF SIGNIFICANT NON-COMPLIANCE FOR 2020 Notice is hereby given that pursuant to the federal regulations contained in 40 CFR 403.8.f(2)(vii), Central Contra Costa Sanitary District (Central San) is required to publish the names of all Industrial Users (IUs) of Central San's public sewer system that were determined to be in Significant Non-Compliance (SNC) with applicable pretreatment standards or other pretreatment requirements during the 2020 calendar year. Federal regulations establish objective criteria for Central San to use to determine if an IU is in SNC. Discharge Quality Violations The following IU was found to have discharged process wastewater in violation of Central San's Local Discharge Limits in a manner that met the definition of SNC. Industrial User Nature of Violation Follow-up Action Taken Diablo Valley College Limit violations for copper(2) Central San issued Notices of Violation (NOVs) 321 Golf Club Road from the discharge from the for the violations. The IU investigated potential Pleasant Hill, CA 94523 Life Science Building at sources of copper within the laboratory concentrations that met the operations and did not locate any significant SNC criteria. Violation for not copper sources. Resampling demonstrated that maintaining grease the IU returned to compliance. The IU is interceptor serving food planning to clean the pretreatment unit serving service operations cited but is the Life Science Building to improve the unit's not subject to SNC. ability to remove regulated pollutants. Central San is evaluating the compliance status of this U's monitoring data and the pattern of non- compliance that has occurred. Reporting Violations The following IU was found to be in violation of the reporting requirements of Central San's Environmental Compliance Program in a manner that met the definition of SNC. Industrial User Nature of Violation Follow-up Action Taken Contra Costa Water District The updated Slug Discharge Central San issued an NOV for this 1331 Concord Avenue Prevention and Contingency violation. The IU promptly submitted the Concord, CA 94524 (SDPC) Plan was submitted required document. Central San will monitor more than 45 days after the the compliance status of this U's report due date required in the submittals but does not intend to take any permit, which meets the SNC further enforcement action related to this criteria. violation. January 21, 2021 Regular Board Meeting Agenda Packet- Page 76 of 119