Final Liability Amount. Based on the foregoing analysis, and consistent with the Enforcement Policy, the final liability portion for the Discharger’s dibromochloromethane, dichlorobromomethane, total nitrogen, and total copper effluent limitation violations is the sum of the Total Base Liability Amount ($805,374 from Step 5 above) and other factors as justice may require ($4,381 from Step 8 above) totaling $809,755. The final liability portion for the Discharger’s pH effluent limitation violations is $138,000. The Final Liability Amount is the sum of the portions described above, or $947,755 ($809,755 + $138,000). Attachment: B-1: List of Alleged Effluent Limit Violations Attachment B1: List of Effluent Limit Alleged Violations (Grouped by Pollutant) Violation Date CIWQS Violation Number Pollutant Effluent Limit Effluent Limit Period Reported Result Days of Violation, or MMP as applicable 8/1/2023 1120832 Dibromochloromethane (Chlorodibromomethane) 0.8 µg/L Daily Maximum 1.0 µg/L 0* 8/31/2023 1120831 Dibromochloromethane (Chlorodibromomethane) 0.4 µg/L Monthly Average 1.0 µg/L 31 5/31/2023 1118156 Nitrogen, Total 10 mg/L Daily Maximum 21 mg/L 1 6/6/2023 1119058 Nitrogen, Total 10 mg/L Daily Maximum 16 mg/L 1 6/13/2023 1119059 Nitrogen, Total 10 mg/L Daily Maximum 18 mg/L 1 6/20/2023 1119049 Nitrogen, Total 10 mg/L Daily Maximum 26 mg/L 1 6/27/2023 1119034 Nitrogen, Total 10 mg/L Daily Maximum 15 mg/L 1 8/29/2023 1120836 Nitrogen, Total 10 mg/L Daily Maximum 11 mg/L 1 9/6/2023 1121273 Nitrogen, Total 10 mg/L Daily Maximum 12 mg/L 1 CIWQS Days of Violation Violation Pollutant Effluent Effluent Limit Reported Violation, or Date Number Limit Period Result MMP as applicable 6/30/2023 1119405 Copper, Total 7.5 µg/L Monthly Average 16.8 µg/L 30 7/31/2023 1129986 Copper, Total 7.5 µg/L Monthly Average 7.9 µg/L 31 5/24/2023 1118316 pH 7 mg/L Daily Minimum 6.9 mg/L MMP 5/25/2023 1118318 pH 7 mg/L Daily Minimum 6.8 mg/L MMP 5/26/2023 1118319 pH 7 mg/L Daily Minimum 6.8 mg/L MMP 5/27/2023 1118320 pH 7 mg/L Daily Minimum 6.9 mg/L MMP 5/28/2023 1118321 pH 7 mg/L Daily Minimum 6.7 mg/L MMP 5/29/2023 1118315 pH 7 mg/L Daily Minimum 6.7 mg/L MMP 5/30/2023 1118317 pH 7 mg/L Daily Minimum 6.5 mg/L MMP 5/31/2023 1118314 pH 7 mg/L Daily Minimum 6.4 mg/L MMP 6/1/2023 1119033 pH 7 mg/L Daily Minimum 6.7 mg/L MMP 6/2/2023 1119054 pH 7 mg/L Daily Minimum 6.7 mg/L MMP 6/3/2023 1119038 pH 7 mg/L Daily Minimum 6.6 mg/L MMP 6/4/2023 1119061 pH 7 mg/L Daily Minimum 6.6 mg/L MMP CIWQS Days of Violation Violation Pollutant Effluent Effluent Limit Reported Violation, or Date Number Limit Period Result MMP as applicable 6/5/2023 1119051 pH 7 mg/L Daily Minimum 6.6 mg/L MMP 6/6/2023 1119050 pH 7 mg/L Daily Minimum 6.7 mg/L MMP 6/7/2023 1119052 pH 7 mg/L Daily Minimum 6.7 mg/L MMP 6/8/2023 1119056 pH 7 mg/L Daily Minimum 6.6 mg/L MMP 6/9/2023 1119053 pH 7 mg/L Daily Minimum 6.5 mg/L MMP 6/10/2023 1119057 pH 7 mg/L Daily Minimum 6.7 mg/L MMP 6/11/2023 1119063 pH 7 mg/L Daily Minimum 6.7 mg/L MMP 6/12/2023 1119064 pH 7 mg/L Daily Minimum 6.8 mg/L MMP 6/13/2023 1119065 pH 7 mg/L Daily Minimum 6.6 mg/L MMP 6/14/2023 1119066 pH 7 mg/L Daily Minimum 6.4 mg/L MMP 6/15/2023 1119067 pH 7 mg/L Daily Minimum 6.3 mg/L MMP 6/16/2023 1119068 pH 7 mg/L Daily Minimum 6.1 mg/L MMP 6/17/2023 1119069 pH 7 mg/L Daily Minimum 6 mg/L MMP 6/18/2023 1119070 pH 7 mg/L Daily Minimum 5.8 mg/L MMP 6/19/2023 1119071 pH 7 mg/L Daily Minimum 5.6 mg/L MMP CIWQS Days of Violation Violation Pollutant Effluent Effluent Limit Reported Violation, or Date Number Limit Period Result MMP as applicable 6/20/2023 1119039 pH 7 mg/L Daily Minimum 5.2 mg/L MMP 6/21/2023 1119040 pH 7 mg/L Daily Minimum 5.1 mg/L MMP 6/22/2023 1119041 pH 7 mg/L Daily Minimum 5.1 mg/L MMP 6/23/2023 1119042 pH 7 mg/L Daily Minimum 5.3 mg/L MMP 6/24/2023 1119043 pH 7 mg/L Daily Minimum 6.3 mg/L MMP 6/25/2023 1119044 pH 7 mg/L Daily Minimum 6.4 mg/L MMP 6/26/2023 1119045 pH 7 mg/L Daily Minimum 6.6 mg/L MMP 6/27/2023 1119046 pH 7 mg/L Daily Minimum 6.6 mg/L MMP 6/28/2023 1119055 pH 7 mg/L Daily Minimum 6.6 mg/L MMP 6/29/2023 1119047 pH 7 mg/L Daily Minimum 6.6 mg/L MMP 6/30/2023 1119048 pH 7 mg/L Daily Minimum 6.9 mg/L MMP 7/1/2023 1119587 pH 7 mg/L Daily Minimum 6.7 mg/L MMP 7/2/2023 1119588 pH 7 mg/L Daily Minimum 6.7 mg/L MMP 7/3/2023 1119589 pH 7 mg/L Daily Minimum 6.8 mg/L MMP 7/5/2023 1119591 pH 7 mg/L Daily Minimum 6.9 mg/L MMP CIWQS Days of Violation Violation Pollutant Effluent Effluent Limit Reported Violation, or Date Number Limit Period Result MMP as applicable 7/6/2023 1119592 pH 7 mg/L Daily Minimum 6.8 mg/L MMP 7/7/2023 1119590 pH 7 mg/L Daily Minimum 6.8 mg/L MMP 8/3/2023 1120829 pH 7 mg/L Daily Minimum 6.9 mg/L MMP 8/4/2023 1120834 pH 7 mg/L Daily Minimum 6.9 mg/L MMP * As noted in Attachment B, this day of violation is already accounted for within the 31 days of violation of the dibromochloromethane monthly average effluent limit and is not counted twice. ATTACHMENT C This document provides details on the proposed administrative civil liability related to unauthorized discharges of drinking water sand filter backwash waste (filter backwash waste) to waters of the United States from the California Department of Corrections and Rehabilitation (CDCR or Discharger) California Men’s Colony (CMC) Drinking Water Treatment Plant (WTP) in August 2023. The California Regional Water Quality Control Board, Central Coast Region (Central Coast Water Board) Prosecution Team (Prosecution Team) derived the proposed administrative civil liability following the State Water Resources Control Board’s (State Water Board) Water Quality Enforcement Policy (the Enforcement Policy).1
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Sources: Settlement Agreement, Settlement Agreement