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California Integrated Water Quality System Project (CIWQS)
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Place ID 245564 		  
  
  
  
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General Information
Region Place ID Place Name Place Type Place Address Place County
3 245564 Oak Hills Development WWTP Wastewater Treatment Facility 9152 Cathedral Oak Castroville, CA, 93907 Monterey
Expand/Contract Related Parties
Related Parties
Party Party Type Party Name Role Classification Relationship Start Date Relationship End Date
594269 Person Kathy Truong Case Worker 09/17/2021
147153 Person Kristina Olmos Case Worker 12/13/2017
138418 Person Tom Kukol Case Worker 10/26/2010 07/25/2017
7478 Organization California American Water Company Monterey Owner Privately-Owned Business 03/01/2000
Total Related Parties: 4
Expand/Contract Regulatory Measures
Regulatory Measures
Reg Measure ID Reg Measure Type Region Program Order No. WDID Effective Date Expiration Date Status Amended?
452539 Enrollee - WDR 3 WDRMUNILRG R3-2020-0020 3 271007001 05/02/2023 09/24/2030 Active N
148204 WDR 3 WDRMUNILRG 01-009 3 271007001 05/18/2001 05/18/2016 Historical N
143723 WDR 3 WDRMUNILRG 85-070 3 271007001 05/10/1985 05/06/2000 Historical N
143640 WDR 3 WDRMUNILRG 84-045 3 271007001 04/13/1984 05/10/1985 Historical N
Total Reg Measures: 4
Expand/Contract Violations
Violations
Violation ID Occurred Date Violation Type (-) Violation Description Corrective Action Status Classification Source
1148347 08/05/2025 Order Conditions California American Water failed to maintain adequate proper functioning aerators in Pond 2 to provide sufficient aeration, thereby violating Section VI.B.4 of the General Permit. Pending corrective action by discharger. Violation B Inspection
1148338 08/05/2025 Order Conditions Violated General Permit section IV.B.4 by failing to minimize weeds and vegetation along the surface and banks of Ponds 1, 2, and 3. Pending corrective action by discharger. Violation B Inspection
1148352 05/05/2025 LREP Failure to submit Climate Change Adaptation Plan due May 4, 2025. Pending report submittal. Violation B Report
1148346 04/10/2025 GWAT Exceeded groundwater total nitrogen limit of 10 mg/L with result of 39 mg/L. Pending corrective action by discharger. Violation B Report
1145115 04/10/2025 CAT1 Total Suspended Solids (TSS) Percent Removal limit is 85.0 % and reported value was 0 %. Violation B Report
1145114 04/10/2025 CAT1 Total Suspended Solids (TSS) Percent Removal limit is 85.0 % and reported value was 82.0 %. Violation B Report
1144991 03/19/2025 CAT1 Total Suspended Solids (TSS) Percent Removal limit is 85.0 % and reported value was 50.0 %. Violation B Report
1144987 03/19/2025 CAT1 Total Suspended Solids (TSS) Percent Removal limit is 85.0 % and reported value was 83.7 %. Violation B Report
1144985 02/26/2025 CAT1 Total Suspended Solids (TSS) Percent Removal limit is 85.0 % and reported value was 78.3 %. Violation B Report
1144986 02/26/2025 CAT1 Total Suspended Solids (TSS) Percent Removal limit is 85.0 % and reported value was 79.5 %. Violation B Report
1148345 01/09/2025 GWAT Exceeded groundwater total nitrogen limit of 10 mg/L with result of 48.5 mg/L. Pending corrective action by discharger. Violation B Report
1144979 12/01/2024 CAT1 Nitrogen, Total (as N) Percent Removal limit is 50.0 % and reported value was 35.7 %. Violation B Report
1144977 11/21/2024 CAT1 Total Suspended Solids (TSS) Percent Removal limit is 85.0 % and reported value was 0 %. Violation B Report
1144976 10/23/2024 CAT1 Total Suspended Solids (TSS) Percent Removal limit is 85.0 % and reported value was 0 %. Violation B Report
1148344 10/16/2024 GWAT Exceeded groundwater total nitrogen limit of 10 mg/L with result of 57 mg/L. Pending corrective action by discharger. Violation B Report
1144975 10/16/2024 CAT1 Total Suspended Solids (TSS) Percent Removal limit is 85.0 % and reported value was 79.8 %. Violation B Report
1144974 09/06/2024 CAT1 Total Suspended Solids (TSS) Percent Removal limit is 85.0 % and reported value was 5.8 %. Violation B Report
1144973 09/01/2024 CAT1 Nitrogen, Total (as N) Percent Removal limit is 50.0 % and reported value was 28.1 %. Violation B Report
1148343 07/26/2024 GWAT Exceeded groundwater total nitrogen limit of 10 mg/L with result of 52.3 mg/L. Pending corrective action by discharger. Violation B Report
1144968 07/25/2024 CAT1 Total Suspended Solids (TSS) Percent Removal limit is 85.0 % and reported value was 54.3 %. Violation B Report
1144971 07/25/2024 CAT1 Total Suspended Solids (TSS) Percent Removal limit is 85.0 % and reported value was 61.4 %. Violation B Report
1144961 07/01/2024 CAT1 Nitrogen, Total (as N) Percent Removal limit is 50.0 % and reported value was 39.4 %. Violation B Report
1148351 06/05/2024 LREP Failure to submit Groundwater Monitoring Well Workplan due June 4, 2024. Pending report submittal. Violation B Report
1148349 05/05/2024 LREP Failure to submit Operations and Maintenance Manual due May 4, 2024. Pending report submittal. Violation B Report
1148348 05/05/2024 LREP Failure to submit Pond Liner Permeability Report due May 4, 2024. Pending report submittal. Violation B Report
1148350 05/05/2024 LREP Failure to submit Time Schedule Compliance Plan due May 4, 2024. Pending report submittal. Violation B Report
1148342 04/17/2024 GWAT Exceeded groundwater total nitrogen limit of 10 mg/L with result of 42.3 mg/L. Pending corrective action by discharger. Violation B Report
1144960 04/17/2024 CAT1 Total Suspended Solids (TSS) Percent Removal limit is 85.0 % and reported value was 74.2 %. Violation B Report
1144958 04/17/2024 CAT1 Total Suspended Solids (TSS) Percent Removal limit is 85.0 % and reported value was 83.3 %. Violation B Report
1129684 03/27/2024 CAT1 Total Suspended Solids (TSS), Percent Removal Daily Minimum limit is 85.0 % and reported value was 78.0 %. Violation B Report
1129682 02/29/2024 CAT1 Total Suspended Solids (TSS), Percent Removal Daily Minimum limit is 85.0 % and reported value was 77.0 %. Violation B Report
1145700 02/07/2024 OEV Flow Instantaneous Maximum limit is 125000.0 GPD and reported value was 145600.0 GPD. Violation B Report
1140330 02/06/2024 OEV Flow Instantaneous Maximum limit is 125000.0 GPD and reported value was 135700.0 GPD. Violation B Report
1129693 02/05/2024 OEV Flow Instantaneous Maximum limit is 125000.0 GPD and reported value was 135700.0 GPD. Violation B Report
1129678 01/26/2024 CAT1 Total Suspended Solids (TSS), Percent Removal Daily Minimum limit is 85.0 % and reported value was 77.0 %. Violation B Report
1148341 01/25/2024 GWAT Exceeded groundwater total nitrogen limit of 10 mg/L with result of 33.6 mg/L. Pending corrective action by discharger. Violation B Report
1129689 01/25/2024 CAT1 BOD5 @ 20 Deg. C, Percent Removal Percent Reduction limit is 85.0 % and reported value was 83.0 %. Violation B Report
1145112 12/14/2023 CAT1 Total Suspended Solids (TSS) Percent Removal limit is 85.0 % and reported value was 45.8 %. Violation B Report
1145111 12/14/2023 CAT1 Total Suspended Solids (TSS) Percent Removal limit is 85.0 % and reported value was 83.3 %. Violation B Report
1145110 11/16/2023 CAT1 Total Suspended Solids (TSS) Percent Removal limit is 85.0 % and reported value was 56.4 %. Violation B Report
1148340 10/24/2023 GWAT Exceeded groundwater total nitrogen limit of 10 mg/L with result of 94.3 mg/L. Pending corrective action by discharger. Violation B Report
1145109 10/24/2023 CAT1 Total Suspended Solids (TSS) Percent Removal limit is 85.0 % and reported value was 81.4 %. Violation B Report
1129786 08/21/2023 OEV Flow Instantaneous Maximum limit is 125000.0 GPD and reported value was 219200.0 GPD. Violation B Report
1129709 08/15/2023 CAT1 BOD5 @ 20 Deg. C, Percent Removal Percent Reduction limit is 85.0 % and reported value was 63.0 %. Violation B Report
1129703 08/15/2023 CAT1 Total Suspended Solids (TSS), Percent Removal Daily Minimum limit is 85.0 % and reported value was -12 %. Violation B Report
1129785 08/08/2023 OEV Flow Instantaneous Maximum limit is 125000.0 GPD and reported value was 135300.0 GPD. Violation B Report
1129706 07/25/2023 CAT1 Total Suspended Solids (TSS), Percent Removal Daily Minimum limit is 85.0 % and reported value was 54.0 %. Violation B Report
1129784 03/08/2023 OEV Flow Instantaneous Maximum limit is 125000.0 GPD and reported value was 135200.0 GPD. Violation B Report
1129783 03/06/2023 OEV Flow Instantaneous Maximum limit is 125000.0 GPD and reported value was 135200.0 GPD. Violation B Report
1106411 06/12/2022 CAT1 BOD5 @ 20 Deg. C, Percent Removal Percent Reduction limit is 85 % and reported value was 74 %. Violation B Report
1104705 04/18/2022 CAT1 Total Suspended Solids (TSS), Percent Removal Daily Minimum limit is 85 % and reported value was 72 %. Violation B Report
1103264 03/30/2022 CAT1 BOD5 @ 20 Deg. C, Percent Removal Daily Minimum limit is 85 % and reported value was 67 %. Violation B Report
1103265 03/30/2022 CAT1 Total Suspended Solids (TSS), Percent Removal Daily Minimum limit is 85 % and reported value was 37.5 %. Violation B Report
1101069 01/07/2022 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Percent Reduction limit is 85 % and reported value was 82.4 %. Violation B Report
1099631 12/27/2021 OEV Flow Daily Maximum limit is 125000.0 GPD and reported value was 156600 GPD. Violation B Report
1099630 12/26/2021 OEV Flow Daily Maximum limit is 125000.0 GPD and reported value was 144300 GPD. Violation B Report
1099629 12/25/2021 OEV Flow Daily Maximum limit is 125000.0 GPD and reported value was 144200 GPD. Violation B Report
1099628 12/24/2021 OEV Flow Daily Maximum limit is 125000.0 GPD and reported value was 144300 GPD. Violation B Report
1099626 12/15/2021 CAT1 BOD5 @ 20 Deg. C, Percent Removal Instantaneous Minimum limit is 85 % and reported value was 78.9 %. Violation B Report
1099625 12/13/2021 OEV Flow Daily Maximum limit is 125000 GPD and reported value was 162700 GPD. Violation B Report
1090883 04/01/2021 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Percent Reduction limit is 85 % and reported value was 80 %. Violation B Report
1085044 12/16/2020 CAT1 Total Suspended Solids (TSS), Percent Removal Instantaneous Minimum limit is 85 % and reported value was 74 %. Violation B Report
1083379 11/10/2020 CAT1 BOD5 @ 20 Deg. C, Percent Removal Instantaneous Minimum limit is 85 % and reported value was 83.8 %. Violation B Report
1083378 11/10/2020 CAT1 Total Suspended Solids (TSS), Percent Removal Instantaneous Minimum limit is 85 % and reported value was 52 %. Violation B Report
Report displays most recent five years of violations. Refer to the Interactive Violation Report for more data.
Total Violations: 64 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) GWAT = Groundwater
LREP = Late Report Order Conditions = Order Conditions
OEV = Other Effluent Violation
Expand/Contract Enforcement Actions
Enforcement Actions
Enf Id Enf Type Enf Order No. Effective Date Status
462925 Notice of Violation null 10/03/2025 Historical
251785 Staff Enforcement Letter 04/29/2004 Historical
244382 Staff Enforcement Letter 02/20/2003 Historical
221334 Cease and Desist Order LT880908 09/08/1988 Historical
221335 Cease and Desist Order 85-152 10/11/1985 Historical
Total Enf Actions: 5
Expand/Contract Inspections
Inspections
Inspection ID Inspection Type Lead Inspector Actual End Date Planned Violations Attachment
61471179 B Type compliance inspection Kathy Truong 08/05/2025 N 0 N/A
46736412 B Type compliance inspection Monique Gaido 01/21/2022 N 0 N/A
3762799 B Type compliance inspection Tom Kukol 02/24/2011 N 0 N/A
1654304 B Type compliance inspection Matt Keeling 03/26/2009 N 0 N/A
1033348 B Type compliance inspection Mike Higgins 04/06/2007 Y 0 N/A
336375 B Type compliance inspection Cecile Blancarte 10/28/2004 Y 0 N/A
335435 B Type compliance inspection Cecile Blancarte 05/19/2004 Y 0 N/A
291940 B Type compliance inspection Lida Tan 10/15/2001 Y 0 N/A
291946 B Type compliance inspection Lida Tan 04/06/2001 Y 0 N/A
291941 B Type compliance inspection Lida Tan 02/28/2001 Y 0 N/A
291962 B Type compliance inspection Lida Tan 05/18/2000 Y 0 N/A
291943 B Type compliance inspection Scott Phillips 06/11/1999 Y 0 N/A
291945 B Type compliance inspection Adam White 03/19/1998 Y 0 N/A
291942 B Type compliance inspection Adam White 08/28/1995 Y 0 N/A
291944 B Type compliance inspection Tom Kukol 12/20/1994 Y 0 N/A
Total Inspections: 15 Last Inspection: 08/05/2025
  
The current report was generated with data as of: 10/24/2025
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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