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 California Integrated Water Quality System Project (CIWQS)
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General Information
Party ID Party Name Party Classification Mailing Address Work Phone Email/Website
551483 William Chen 11020 Sun Center Drive 200 Rancho Cordova, CA 95670 None Will.Chen@waterboards.ca.gov
  
  
  
  
Expand/Contract Related Places
Related Places
Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date
Total Related Places: 0
  
  
  
  
Expand/Contract Related Parties
Related Parties
Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification
137762 Central Valley Regional Water Quality Control Board, Sacramento Office Organization Employee 01/18/2019 None Waterboard
Total Related Parties: 1
  
  
  
  
Expand/Contract Regulatory Measures
Regulatory Measures (non-enforcement)
Reg. Measure ID Regulatory Measure Type Region WDID Status Program Order No. RM Effective Date RM Termination Date Relationship Relationship Start Date Relationship End Date Amended?
Total Regulatory Measures: 0
  
  
  
  
Expand/Contract Violations
Violations within the past five years
Violation ID Occurrence Date Violation Type Violation Description(-) Violation Status Priority Source Facility Name Violated Reg. Meas. ID Violated Reg. Meas. Order No. Linked to Enf.
1113521 11/21/2022 Order Conditions Daily maximum filter effluent turbidity was 11 NTU on 11/21/2022, and the limit is 10 NTU. Violation N Report White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1115902 03/14/2023 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.0 MPN/100 mL at EFF-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1115903 03/23/2023 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.0 MPN/100 mL at EFF-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1115908 03/24/2023 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.0 MPN/100 mL at EFF-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1115916 03/12/2023 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.0 MPN/100 mL at EFF-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1117603 01/19/2023 Order Conditions Daily maximum turbidity limitation at UVS-001 is 10 NTU, and discharger reported 13 NTU on 1/25/23 and 15 NTU on 1/26/2023. In addition, daily average turbidity limitation at UVS-001 is 2 NTU, and discharger reported 3 NTU on 1/19/23 and 4 NTU on 1/25/23. Violation N Report White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1122888 11/27/2023 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 8.0 MPN/100 mL at EFF-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1124354 11/26/2023 Order Conditions Filter effluent turbidity exceeded the limitation on 11/26/2023. The limitation is 10 NTU, and the daily maximum turbidity on 11/26/2023 was 15 NTU. In addition, filter effluent turbidity exceeded 5 NTU for more than 5% of the day on 11/26/2023. Violation N Report White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1101235 01/16/2022 Order Conditions UV Dose 1-Hour Average (Mean) limit is 100 mJ/cm2 and reported value was 98 mJ/cm2 at UVS-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1101236 01/17/2022 Order Conditions UV Dose 1-Hour Average (Mean) limit is 100 mJ/cm2 and reported value was 95 mJ/cm2 at UVS-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1101239 01/09/2022 Order Conditions UV Dose 1-Hour Average (Mean) limit is 100 mJ/cm2 and reported value was 99 mJ/cm2 at UVS-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1101241 01/12/2022 Order Conditions UV Dose 1-Hour Average (Mean) limit is 11 mJ/cm2 and reported value was 88 mJ/cm2 at UVS-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1104187 02/09/2022 Order Conditions The daily minimum hourly average UV dose is 100 mJ/cm2, and the measured minimum hourly average UV dose was 85 mJ/cm2 on 2/1 and 95 mJ/cm2 on 2/9. Violation N Report White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1112835 12/31/2022 CAT1 Ammonia, Total (as N) Monthly Average limit is 3.1 mg/L and reported value was 3.9 mg/L at EFF-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1113830 01/19/2023 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.0 MPN/100 mL at EFF-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1113831 01/20/2023 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.0 MPN/100 mL at EFF-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1113961 01/28/2023 CAT1 Ammonia, Total (as N) Weekly Average limit is 6.4 mg/L and reported value was 12 mg/L at EFF-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1115906 03/18/2023 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.0 MPN/100 mL at EFF-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1140606 01/05/2025 OEV Total Coliform Single Sample Maximum limit is 240.0 MPN/100 mL and reported value was 300.0 MPN/100 mL at EFF-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1101237 01/18/2022 Order Conditions UV Dose 1-Hour Average (Mean) limit is 100 mJ/cm2 and reported value was 99 mJ/cm2 at UVS-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1115909 03/16/2023 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.0 MPN/100 mL at EFF-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1115910 03/19/2023 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.0 MPN/100 mL at EFF-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1115911 03/20/2023 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.0 MPN/100 mL at EFF-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1117598 01/28/2023 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Weekly Average limit is 15 mg/L and reported value was 19 mg/L at EFF-001. Violation N Report White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1117599 01/31/2023 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Average limit is 10 mg/L and reported value was 17 mg/L at EFF-001. Violation N Report White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1117601 03/10/2023 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4 MPN/100 mL at EFF-001. Violation N Report White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1122889 11/29/2023 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 8.0 MPN/100 mL at EFF-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1138287 11/20/2024 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.0 MPN/100 mL at EFF-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1088220 02/28/2021 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Average limit is 10 mg/L and reported value was 11 mg/L at EFF-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1101238 01/13/2022 Order Conditions UV Dose 1-Hour Average (Mean) limit is 100 mJ/cm2 and reported value was 97 mJ/cm2 at UVS-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1109917 09/30/2022 Deficient Monitoring Discharger did not monitor biosolids at BIO-001 during Q3 2022 as required in the WDRs. Violation N Report White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1115918 03/13/2023 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.0 MPN/100 mL at EFF-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1124357 12/02/2023 Deficient Reporting The Discharger did not report the pH at RSW-001, temperature at RSW-003, or pH at RSW-005 during the week ending 12/2/2023. Violation N Report White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1128450 03/31/2024 Deficient Reporting Discharger did not report pH at RSW-001 during the week ending 3/30/2024. Violation N Report White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1115904 03/25/2023 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.0 MPN/100 mL at EFF-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1115917 03/27/2023 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4 MPN/100 mL at EFF-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1124355 11/18/2023 Deficient Reporting The Discharger did not report temperature at RSW-005 for the week ending 11/4/2023, or pH and temperature at RSW-003 for the week ending 11/18/2023 Violation N Report White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1138288 11/19/2024 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.0 MPN/100 mL at EFF-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1097012 09/30/2021 Deficient Reporting Discharger did not monitor biosolids at the required frequency. WDRs require biosolids monitoring once per quarter, and the discharger did not monitor biosolids during the third quarter of 2021. Violation N Report White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1101240 01/11/2022 Order Conditions UV Dose 1-Hour Average (Mean) limit is 100 mJ/cm2 and reported value was 91 mJ/cm2 at UVS-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1113832 01/21/2023 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.0 MPN/100 mL at EFF-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1113958 01/31/2023 CAT1 Ammonia, Total (as N) Monthly Average limit is 220 lbs and reported value was 578 lbs at EFF-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1113960 01/31/2023 CAT1 Ammonia, Total (as N) Monthly Average limit is 3.1 mg/L and reported value was 14 mg/L at EFF-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1115905 03/26/2023 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.0 MPN/100 mL at EFF-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1115907 03/15/2023 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.0 MPN/100 mL at EFF-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1115919 03/22/2023 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.0 MPN/100 mL at EFF-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1117421 03/31/2023 CAT1 BOD5 @ 20 Deg. C, Percent Removal Monthly Average limit is 10.0 mg/L and reported value was 11.0 mg/L at EFF-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1122887 11/30/2023 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 8.0 MPN/100 mL at EFF-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1122890 11/28/2023 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 8.0 MPN/100 mL at EFF-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1123403 12/31/2023 CAT1 Ammonia, Total (as N) Monthly Average limit is 3.1 mg/L and reported value was 4.9 mg/L at EFF-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1136536 10/10/2024 OEV Total Coliform Not to exceed a specific limit more than once within any 30-day period. limit is 23 MPN/100 mL and reported value was 30 MPN/100 mL at EFF-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1140445 12/23/2024 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 6.0 MPN/100 mL at EFF-001. Violation N Report White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1090606 02/27/2021 Deficient Monitoring Discharger did not monitor Ammonia at the required frequency during all weeks in February. In addition, the effluent BOD result reported by the Discharger for 20 February was ¿exceeds 27 mg/L¿ because the dilutions used in the analysis were not capable of determining a more precise result. Therefore the discharger was not able to report the results of monitoring as required in section I.I of the MRP. Nor could the weekly average effluent BOD be calculated and reported accurately for the week ending 20 February. Violation N Report White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1101234 01/15/2022 Order Conditions UV Dose 1-Hour Average (Mean) limit is 100 mJ/cm2 and reported value was 98 mJ/cm2 at UVS-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1104057 01/14/2022 Order Conditions UV Dose 1-Hour Average (Mean) limit is 100 mJ/cm2 and reported value was 98 mJ/cm2 at UVS-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1104058 01/21/2022 Order Conditions UV Dose 1-Hour Average (Mean) limit is 100 mJ/cm2 and reported value was 97 mJ/cm2 at UVS-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1104059 01/23/2022 Order Conditions UV Dose 1-Hour Average (Mean) limit is 100 mJ/cm2 and reported value was 70 mJ/cm2 at UVS-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1113829 01/17/2023 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.0 MPN/100 mL at EFF-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1113834 01/22/2023 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.0 MPN/100 mL at EFF-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1113959 01/21/2023 CAT1 Ammonia, Total (as N) Weekly Average limit is 454 lbs and reported value was 717 lbs at EFF-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1115915 03/21/2023 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.0 MPN/100 mL at EFF-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1117496 04/16/2023 OEV Total Coliform Single Sample Maximum limit is 240 mg/L and reported value was 300 mg/L at EFF-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1123404 12/23/2023 CAT1 Ammonia, Total (as N) Weekly Average limit is 6.4 mg/L and reported value was 11.0 mg/L at EFF-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1124356 10/08/2023 Deficient Reporting The Discharger did not report daily minimum UV dose on 10/8/2023. Violation N Report White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1090605 02/27/2021 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Weekly Average limit is 15 mg/L and reported value was 20 mg/L at EFF-001. Violation N Report White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1090607 01/30/2021 Deficient Monitoring Discharger did not monitor effluent ammonia at the required frequency during all weeks in January. Discharger did not monitor flow, turbidity, dose, or transmittance at UVS-001 at the required frequency during 17-19 January Violation N Report White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1101233 01/10/2022 Order Conditions UV Dose 1-Hour Average (Mean) limit is 100 mJ/cm2 and reported value was 97 mJ/cm2 at UVS-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1113520 10/03/2022 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 50 MPN/100 mL at EFF-001. Violation N Report White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1113828 01/16/2023 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.0 MPN/100 mL at EFF-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1113833 01/15/2023 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.0 MPN/100 mL at EFF-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1113962 01/21/2023 CAT1 Ammonia, Total (as N) Weekly Average limit is 6.4 mg/L and reported value was 16 mg/L at EFF-001. Violation N eSMR White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1117602 03/11/2023 OEV Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4 MPN/100 mL at EFF-001. Violation N Report White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
1117604 01/28/2023 Deficient Reporting Discharger did not report influent TSS for week ending 1/28/2023. Violation N Report White Slough Water Pollution Control Facility 429451 R5-2023-0025 Y
Report currently showing last five years of violations. Click here to return to viewing one year of violations. Refer to the Interactive Violation Report for more data.
Total Violations: 73
*Click the "(+/-) Violation Description" link to expand and contract the violation description.
  
  
  
  
Expand/Contract Enforcement Actions
Enforcement Actions
Enforcement ID Enforcement Type Enf. Order No. Title Program Effective Date Status
Total Enforcement Actions: 0
  
  
  
  
Expand/Contract Enforcement Actions
Regulatory Measures linked to Related Parties
Reg. Measure ID Organization Regulatory Measure Type Program Effective Date Status
402503 Central Valley Regional Water Quality Control Board, Sacramento Office Resolution PLNBPP 07/09/2004 Historical
462913 Central Valley Regional Water Quality Control Board, Sacramento Office Resolution IRRIALLOTH 10/10/2025 Historical
448363 Central Valley Regional Water Quality Control Board, Sacramento Office Resolution PLNBPP 06/10/2022 Historical
Total Regulatory Measures linked to Related Parties: 3
  
  
The current report was generated with data as of: 10/31/2025
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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