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California Integrated Water Quality System Project (CIWQS)
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Place ID 240655 		  
  
  
  
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General Information
Region Place ID Place Name Place Type Place Address Place County
5S 240655 Middletown STP (SD 2-2) Wastewater Treatment Facility 20126 Hwy 175 Middletown, CA, 95461 Lake
Expand/Contract Related Parties
Related Parties
Party Party Type Party Name Role Classification Relationship Start Date Relationship End Date
601121 Person George Hornung Is Onsite Manager For 09/10/2019
25380 Organization Lake Cnty Owner County Agency 09/26/1997
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?
146902 WDR 5S WDRMUNILRG 97-249 5A170111001 12/05/1997 12/05/2007 Active N
140329 WDR 5S WDR 88-175 5A170111001 09/23/1988 09/21/1998 Historical N
Total Reg Measures: 2
Expand/Contract Violations
Violations
Violation ID Occurred Date Violation Type (-) Violation Description Corrective Action Status Classification Source
1143692 12/31/2024 Order Conditions During the third quarter 2024 groundwater monitoring event, total coliform organisms were reported in groundwater monitoring well MW-4 at 4 MPN/100mL. Violation B Report
1143669 11/30/2024 Order Conditions Discharge Specification B.4 of the WDRs states that the 30-day average BOD concentration of wastewater that is discharged to the effluent storage reservoir shall not exceed 40 mg/L. The November 2024 monitoring report indicates that the 30-day average BOD effluent concentration was 65.3 mg/L. Violation B Report
1143676 11/30/2024 Order Conditions Discharge Specification B.4 of the WDRs states that the monthly median Total Coliform concentration of wastewater that is discharged to the effluent storage reservoir shall not exceed 23 MPN/100 mL. During the November 2024 monitoring, total coliform was reported at 801 MPN/100 mL. Violation B Report
1143689 11/30/2024 Order Conditions Discharge Specification B.6 of the WDRs states: “The discharge shall not have a pH less than 6.5 nor greater than 8.5.” The reported pH in the discharge during the November 2024 monitoring was greater than 8.5 pH units on 5 November 2024. Violation B Report
1143682 11/06/2024 Order Conditions Discharge Specification B.4 of the WDRs states that the daily maximum Total Coliform concentration of wastewater that is discharged to the effluent storage reservoir shall not exceed 230 mg/L. Total coliform was reported at 1600 MPN/100 mL on 23 October 2024. Violation B Report
1143675 10/31/2024 Order Conditions Discharge Specification B.4 of the WDRs states that the monthly median Total Coliform concentration of wastewater that is discharged to the effluent storage reservoir shall not exceed 23 MPN/100 mL. During the October 2024 monitoring, total coliform was reported at 418.45 MPN/100 mL. Violation B Report
1143688 10/31/2024 Order Conditions Discharge Specification B.6 of the WDRs states: “The discharge shall not have a pH less than 6.5 nor greater than 8.5.” The reported pH in the discharge during the October 2024 monitoring was greater than 8.5 pH units on 1 October 2024. Violation B Report
1143681 10/23/2024 Order Conditions Discharge Specification B.4 of the WDRs states that the daily maximum Total Coliform concentration of wastewater that is discharged to the effluent storage reservoir shall not exceed 230 mg/L. Total coliform was reported at 1600 MPN/100 mL on 23 October 2024. Violation B Report
1143691 09/30/2024 Order Conditions During the third quarter 2024 groundwater monitoring event, total coliform organisms were reported in groundwater monitoring well MW-4 at 33 MPN/100mL. Violation B Report
1143674 08/31/2024 Order Conditions Discharge Specification B.4 of the WDRs states that the monthly median Total Coliform concentration of wastewater that is discharged to the effluent storage reservoir shall not exceed 23 MPN/100 mL. During the August 2024 monitoring, total coliform was reported at 59.78 MPN/100 mL. Violation B Report
1143687 08/31/2024 Order Conditions Discharge Specification B.6 of the WDRs states: “The discharge shall not have a pH less than 6.5 nor greater than 8.5.” The reported pH in the discharge during the August 2024 monitoring was greater than 8.5 pH units on 13 August 2024, 20 August 2024 and 29 August 2024. Violation B Report
1143668 07/31/2024 Order Conditions Discharge Specification B.4 of the WDRs states that the 30-day average BOD concentration of wastewater that is discharged to the effluent storage reservoir shall not exceed 40 mg/L. The July 2024 monitoring report indicates that the 30-day average BOD effluent concentration was 50.8 mg/L. Violation B Report
1143673 07/31/2024 Order Conditions Discharge Specification B.4 of the WDRs states that the monthly median Total Coliform concentration of wastewater that is discharged to the effluent storage reservoir shall not exceed 23 MPN/100 mL. During the July 2024 monitoring, total coliform was reported at 470.9 MPN/100 mL. Violation B Report
1143686 07/31/2024 Order Conditions Discharge Specification B.6 of the WDRs states: “The discharge shall not have a pH less than 6.5 nor greater than 8.5.” The reported pH in the discharge during the July 2024 monitoring was greater than 8.5 pH units on 10 July 2024, 17 July 2024 and 23 July 2024. Violation B Report
1143680 07/17/2024 Order Conditions Discharge Specification B.4 of the WDRs states that the daily maximum Total Coliform concentration of wastewater that is discharged to the effluent storage reservoir shall not exceed 230 mg/L. Total coliform was reported at 280 MPN/100 mL on 17 July 2024. Violation B Report
1143679 07/02/2024 Order Conditions Discharge Specification B.4 of the WDRs states that the daily maximum Total Coliform concentration of wastewater that is discharged to the effluent storage reservoir shall not exceed 230 mg/L. Total coliform was reported at 1600 MPN/100 mL on 2 July 2024. Violation B Report
1143672 06/30/2024 Order Conditions Discharge Specification B.4 of the WDRs states that the monthly median Total Coliform concentration of wastewater that is discharged to the effluent storage reservoir shall not exceed 23 MPN/100 mL. During the June 2024 monitoring, total coliform was reported at 536.58 MPN/100 mL. Violation B Report
1143685 06/30/2024 Order Conditions Discharge Specification B.6 of the WDRs states: “The discharge shall not have a pH less than 6.5 nor greater than 8.5.” The reported pH in the discharge during the June 2024 monitoring was greater than 8.5 pH units on 5 June 2024 and 14 June 2024. Violation B Report
1143678 06/26/2024 Order Conditions Discharge Specification B.4 of the WDRs states that the daily maximum Total Coliform concentration of wastewater that is discharged to the effluent storage reservoir shall not exceed 230 mg/L. Total coliform was reported at 540 MPN/100 mL on 26 June 2024. Violation B Report
1143677 06/20/2024 Order Conditions Discharge Specification B.4 of the WDRs states that the daily maximum Total Coliform concentration of wastewater that is discharged to the effluent storage reservoir shall not exceed 230 mg/L. Total coliform was reported at 1600 MPN/100 mL on 20 June 2024. Violation B Report
1143671 05/31/2024 Order Conditions Discharge Specification B.4 of the WDRs states that the monthly median Total Coliform concentration of wastewater that is discharged to the effluent storage reservoir shall not exceed 23 MPN/100 mL. During the May 2024 monitoring, total coliform was reported at 191.68 MPN/100 mL. Violation B Report
1143684 05/31/2024 Order Conditions Discharge Specification B.6 of the WDRs states: “The discharge shall not have a pH less than 6.5 nor greater than 8.5.” The reported pH in the discharge during the May 2024 monitoring was greater than 8.5 pH units on 3 May 2024, 8 May 2024, 15 May 2024 and 22 May 2024. Violation B Report
1143683 04/30/2024 Order Conditions Discharge Specification B.6 of the WDRs states: “The discharge shall not have a pH less than 6.5 nor greater than 8.5.” The reported pH in the discharge during the April 2024 monitoring was greater than 8.5 pH units on 17 April 2024 and 29 April 2024.. Violation B Report
1143690 03/31/2024 Order Conditions During the first quarter 2024 groundwater monitoring event, total coliform organisms were reported in groundwater monitoring wells, MWs 3 and 4 at 6.8 and 79 MPN/100mL. Violation B Report
1143670 02/29/2024 Order Conditions Discharge Specification B.4 of the WDRs states that the monthly median Total Coliform concentration of wastewater that is discharged to the effluent storage reservoir shall not exceed 23 MPN/100 mL. During the February 2024 monitoring, total coliform was reported at 33.9 MPN/100 mL. Violation B Report
1108379 06/30/2022 Order Conditions Total coliform organisms reported at 17 MPN/100 mL in MW-4 during the second quarter 2022 monitoring event. Violation B Report
1108378 03/31/2022 Order Conditions Total coliform organisms reported at 4.5 MPN/100 mL in MW-4 during the first quarter 2022 monitoring event. Violation B Report
1108377 09/30/2021 Order Conditions Total coliform organisms reported at 4.5 MPN/100 mL in MW-4 during the third quarter 2021 monitoring event. Violation B Report
Report displays most recent five years of violations. Refer to the Interactive Violation Report for more data.
Total Violations: 28 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
Order Conditions = Order Conditions
Expand/Contract Enforcement Actions
Enforcement Actions
Enf Id Enf Type Enf Order No. Effective Date Status
461188 Staff Enforcement Letter null 05/29/2025 Historical
449270 Staff Enforcement Letter null 09/20/2022 Historical
435379 Notice of Violation 11/06/2019 Historical
422754 Notice of Violation 07/12/2018 Historical
403400 Notice of Violation 10/21/2015 Historical
383804 Oral Communication 02/07/2012 Historical
256340 Notice of Violation null 05/04/2005 Historical
252630 Notice of Violation 06/22/2004 Historical
249329 Oral Communication 07/25/2002 Historical
Total Enf Actions: 9
Expand/Contract Inspections
Inspections
Inspection ID Inspection Type Lead Inspector Actual End Date Planned Violations Attachment
59693970 B Type compliance inspection Guy Childs 04/09/2025 Y 0 Download
47645456 B Type compliance inspection Guy Childs 04/27/2022 Y 0 Download
37494482 B Type compliance inspection Guy Childs 08/21/2019 Y 1 Download
21676508 B Type compliance inspection Guy Childs 07/30/2015 N 2 [Attachments]
1139715 B Type compliance inspection Guy Childs (Multiple) 07/11/2007 N 0 Download
320814 B Type compliance inspection Sherry K. Constancio 09/25/2001 Y 0 N/A
320813 B Type compliance inspection Sherry K. Constancio 06/27/2001 Y 0 N/A
320812 B Type compliance inspection Sherry K. Constancio 11/24/1998 Y 0 N/A
Total Inspections: 8 Last Inspection: 04/09/2025
  
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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