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California Integrated Water Quality System Project (CIWQS)
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Place ID 273111 		  
  
  
  
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General Information
Region Place ID Place Name Place Type Place Address Place County
5F 273111 Dos Palos WWTF Wastewater Treatment Facility Swift Dos Palos, CA, 93620 Merced
Expand/Contract Related Parties
Related Parties
Party Party Type Party Name Role Classification Relationship Start Date Relationship End Date
137763 Organization Central Valley Regional Water Quality Control Board, Fresno Office Regulating Waterboard 04/04/2007
13130 Organization Dos Palos City Owner City Agency 11/28/1984
Total Related Parties: 2
Expand/Contract Regulatory Measures
Regulatory Measures
Reg Measure ID Reg Measure Type Region Program Order No. WDID Effective Date Expiration Date Status Amended?
194921 WDR 5F WDRMUNILRG 92-094 5C240102001 05/29/1992 05/28/2002 Active N
360445 WDR 5F NPDESWW 92-094 5C240102001 05/29/1992 11/15/1992 Historical N
144728 WDR 5F NPDESWW 90-284 5C240102H01 11/02/1990 05/29/1992 Historical N
144114 WDR 5F NPDESWW 84-141 5C240102H01 11/28/1984 09/30/1989 Historical N
Total Reg Measures: 4
Expand/Contract Violations
Violations
Violation ID Occurred Date Violation Type (-) Violation Description Corrective Action Status Classification Source
1112982 01/31/2023 LREP December 2022 SMR, due 15 January 2023, submitted 31 January 2023 (16 days late). Violation B Report
1112183 01/11/2023 LREP November 2022 SMR, due 15 December 2022, submitted 11 January 2023 (27 days late). Violation B Report
1111960 01/09/2023 LREP October 2022 SMR, due 15 November 2022, submitted 09 January 2023 (55 days late). Violation B Report
1112981 12/31/2022 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Average limit is 40 mg/L and reported value was 45.8 mg/L. Violation B Report
1111959 11/30/2022 Order Conditions 11M: Pond pH; 6.0-9.0: pH units; IM: 9.1-9.2 (4x) Violation B Report
1111958 10/26/2022 Order Conditions 10M: pond pH: 6.0-9.0: pH units; IM: 9.1-9.4 (5x) Violation B Report
1111957 10/19/2022 CAT1 Settleable Solids Daily Maximum limit is 0.5 mg/L and reported value was 85 mg/L. Violation B Report
1111944 10/15/2022 LREP September 2022 SMR, due 15 October 2022, not submitted (86 days late). Violation B Report
1111956 10/12/2022 CAT1 Settleable Solids Daily Maximum limit is 0.5 mg/L and reported value was 31 mg/L. Violation B Report
1111955 10/05/2022 CAT1 Settleable Solids Daily Maximum limit is 0.5 mg/L and reported value was 8.7 mg/L. Violation B Report
1108926 10/03/2022 LREP August 2022 SMR, due 15 September 2022, submitted 03 October 2022 (18 days late). Violation B Report
1107312 08/19/2022 LREP July 2022 SMR, due 15 August 2022, submitted 19 July 2022 (4 days late). Violation B Report
1106440 07/18/2022 LREP June 2022 SMR, due 15 July 2022, submitted 18 July 2022 (3 days late). Violation B Report
1105581 06/21/2022 LREP May 2022 SMR, due 15 June 2022, submitted 21 June 2022 (6 days late). Violation B Report
1104423 05/17/2022 LREP April 2022 SMR, due 15 May 2022, submitted 17 May 2022 (2 days late). Violation B Report
1100988 02/16/2022 LREP January 2022 SMR, due 15 February 2022, submitted 16 February 2022 (1 day late). Violation B Report
1102250 02/09/2022 Order Conditions 2M: pond pH: 6.0-9.0: pH units; IM: 9.1 (1x) Violation B Report
1099463 01/25/2022 LREP December 2021 SMR, due 15 January 2022, submitted 25 January 2022 (10 days late). Violation B Report
1099461 12/29/2021 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Daily Maximum limit is 80.0 mg/L and reported value was 82 mg/L. Violation B Report
1099462 12/01/2021 Order Conditions 12M; Pond pH; 6.0-9.0; pH units; IM; 9.20 (1x) Violation B Report
1098093 11/30/2021 Order Conditions 11M; Pond pH; 6.0-9.0; pH units; IM; 9.20 (1x) Violation B Report
1097005 11/17/2021 LREP October 2021 SMR, due 15 November 2021, submitted 17 November 2021 (2 days late). Violation B Report
1097010 10/31/2021 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Average limit is 40 mg/L and reported value was 64.5 mg/L. Violation B Report
1097009 10/20/2021 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Daily Maximum limit is 80.0 mg/L and reported value was 120 mg/L. Violation B Report
1096302 09/30/2021 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Average limit is 40 mg/L and reported value was 47.2 mg/L. Violation B Report
1096301 09/22/2021 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Daily Maximum limit is 80 mg/L and reported value was 81 mg/L. Violation B Report
1096303 09/08/2021 Order Conditions 9M; Pond pH; 6.0-9.0; pH units; IM; 9.20 (1x) Violation B Report
1093452 08/19/2021 LREP July 2021 SMR, due 15 August 2021, submitted 19 August 2021 (4 days late). Violation B Report
1094990 08/04/2021 Order Conditions 8M; Pond pH; 6.0-9.0; pH units; IM; 9.50 (1x) Violation B Report
1093451 07/28/2021 Order Conditions 7M; Pond pH; 6.0-9.0; pH units; IM; 9.40 (1x) Violation B Report
1092282 07/21/2021 LREP June 2021 SMR, due 15 July 2021, submitted 21 July 2021 (6 days late) Violation B Report
1092281 06/16/2021 Order Conditions 6M; Pond pH; 6.0-9.0; pH units; IM; 9.20 (1x) Violation B Report
1091256 06/15/2021 LREP May 2021 SMR, due 15 June 2021, submitted 16 June 2021(1 day late). Violation B Report
1090422 05/03/2021 LREP March 2021 SMR, due 15 April 2021, submitted 03 May 2021(18 days late). Violation B Report
1090423 04/30/2021 Order Conditions April 2021 SMR, missing weekly BOD & TSS values from Effluent monitoring (5x). Violation B Report
1084515 01/21/2021 LREP December 2020 SMR, due 15 January 2021, submitted 21 January 2021(6 days late). Violation B Report
1083341 11/30/2020 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Average (Mean) limit is 40 mg/L and reported value was 49.75 mg/L. Violation B Report
1081770 11/18/2020 LREP October 2020 SMR, due 15 November 2020, submitted 18 November 2020 (3 days late). Violation B Report
1083340 11/11/2020 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Daily Maximum limit is 80 mg/L and reported value was 81 mg/L. Violation B Report
1081771 10/31/2020 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Average limit is 40 mg/L and reported value was 49.75 mg/L. Violation B Report
1080405 09/17/2020 LREP August 2020 SMR, due 15 September 2020, submitted 17 September 2020 (2 days late). Violation B Report
1079667 08/31/2020 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Average limit is 40 mg/L and reported value was 72.5 mg/L. Violation B Report
1080404 08/17/2020 LREP July 2020 SMR, due 15 August 2020, submitted 17 August 2020 (2 days late). Violation B Report
1079666 08/17/2020 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Daily Maximum limit is 80 mg/L and reported value was 110 mg/L. Violation B Report
1078761 07/31/2020 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Average limit is 40 mg/L and reported value was 45.6 mg/L. Violation B Report
1078762 07/22/2020 Order Conditions 7M: Pond pH: 6.0-9.0; pH units; IM; 4.21-5.25 (2x) Violation B Report
1077026 06/30/2020 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Average limit is 40 mg/L and reported value was 58.75 mg/L. Violation B Report
1080403 06/18/2020 LREP May 2020 SMR, due 15 June 2020, submitted 18 June 2020 (3 days late). Violation B Report
Report displays most recent five years of violations. Refer to the Interactive Violation Report for more data.
Total Violations: 48 Priority Violations: 0
*Click the "(+/-) Violation Description" link to expand and contract the violation description.
*As of 5/20/2010, the Water Board's Enforcement Policy requires that all violations be classified as 1, 2 or 3, with class 1 being the highest. Prior to this, violations were simply classified as Yes or No. If a 123 classification has been assigned to a violation that occurred before this date, that classification data will be displayed instead of the Yes/No data.
Violation Types
CAT1 = Category 1 Pollutant (Effluent Violation for Group 1 Pollutant) LREP = Late Report
Order Conditions = Order Conditions
Expand/Contract Enforcement Actions
Enforcement Actions
Enf Id Enf Type Enf Order No. Effective Date Status
443550 Notice of Violation null 04/27/2021 Active
401565 Oral Communication 04/01/2015 Historical
255204 Staff Enforcement Letter 03/22/2000 Historical
229017 Notice of Violation 10/26/1999 Historical
229363 Notice of Violation 09/08/1999 Historical
329139 Notice of Violation 05/29/1992 Historical
Total Enf Actions: 6
Expand/Contract Inspections
Inspections
Inspection ID Inspection Type Lead Inspector Actual End Date Planned Violations Attachment
54418456 B Type compliance inspection Mario Jaramillo 01/18/2024 N 0 N/A
43080723 B Type compliance inspection Jeffrey Hannel 02/11/2021 N 0 Download
6671143 B Type compliance inspection Daniel Benas 11/17/2011 N 0 N/A
1055590 Miscellaneous inspection Doug K Patteson 03/01/2007 N 0 N/A
327199 B Type compliance inspection Jeff Gymer 11/26/2002 Y 0 N/A
300207 B Type compliance inspection Hossein Aghazeynali 12/14/2001 Y 0 N/A
300209 B Type compliance inspection Greg Kelly 08/12/1999 Y 0 N/A
300211 B Type compliance inspection Martin Sandoval 11/25/1997 Y 0 N/A
300212 Complaint inspection Martin Sandoval 03/25/1997 Y 0 N/A
300213 B Type compliance inspection Martin Sandoval 11/20/1996 Y 0 N/A
300208 B Type compliance inspection Martin Sandoval 06/05/1996 Y 0 N/A
300210 A Type compliance inspection Martin Sandoval 03/24/1995 Y 0 N/A
300214 B Type compliance inspection Martin Sandoval 06/17/1994 Y 0 N/A
300216 B Type compliance inspection Martin Sandoval 04/02/1994 Y 0 N/A
300215 A Type compliance inspection Martin Sandoval 11/16/1993 Y 0 N/A
Total Inspections: 15 Last Inspection: 01/18/2024
  
The current report was generated with data as of: 06/09/2025
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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