California Integrated Water Quality System (CIWQS 20.5)


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	California Integrated Water Quality System Project (CIWQS)

Facility At-A-Glance Report

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Place ID 795798

General Information
Region	Place ID	Place Name	Place Type	Place Address	Place County
5S	795798	Segment 5 Contra Costa Canal Replacement Project	Waterway/Shoreline Site	Contra Costa Canal Oakley, CA, 94561	Contra Costa

Related Parties

Party	Party Type	Party Name	Role	Classification	Relationship Start Date	Relationship End Date
9313	Organization	Contra Costa Water District	Owner and Operator	Special District	06/19/2013
528320	Person	Mark Seedall	Is Onsite Manager For		06/19/2013

Total Related Parties: 2

Regulatory Measures

Reg Measure ID	Reg Measure Type	Region	Program	Order No.	WDID	Effective Date	Expiration Date	Status	Amended?
413904	Enrollee - NPDES	5S	NPDNONMUNIPRCS	R5-2022-0006-02	5B07AP00003	06/19/2017	03/31/2027	Active	N
411656	13267 Letter (Non-Enforcement)	5S	NPDNONMUNIPRCS	2013-0073		01/20/2017		Active	N
391349	Enrollee - NPDES	5S	NPDNONMUNIPRCS	R5-2013-0073-01	5B07AP00003	06/12/2013	05/01/2018	Historical	N

Total Reg Measures: 3

Violations

Violation ID	Occurred Date	Violation Type	(-) Violation Description	Corrective Action	Status	Classification	Source
1130593	09/30/2023	CAT1	Manganese, Total Daily Maximum limit is 160.0 ug/L and reported value was 220 ug/L.		Violation	B	Report
1130596	09/30/2023	CAT1	Manganese, Total Monthly Average limit is 80.0 ug/L and reported value was 200 ug/L.		Violation	B	Report
1130592	08/31/2023	CAT1	Manganese, Total Daily Maximum limit is 160 ug/L and reported value was 242 ug/L.		Violation	B	Report
1130595	08/31/2023	CAT1	Manganese, Total Monthly Average limit is 80.0 ug/L and reported value was 200 ug/L.		Violation	B	Report
1130591	07/31/2023	CAT1	Manganese, Total Daily Maximum limit is 160 ug/L and reported value was 242 ug/L.		Violation	B	Report
1130594	07/31/2023	CAT1	Manganese, Total Monthly Average limit is 80 ug/L and reported value was 242 ug/L.		Violation	B	Report
Report displays most recent five years of violations. Refer to the Interactive Violation Report for more data.

Total Violations: 6

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)

Enforcement Actions

Enf Id	Enf Type	Enf Order No.	Effective Date	Status
458009	Notice of Violation	null	08/09/2024	Historical
430196	Admin Civil Liability	R5-2019-0508	06/11/2019	Historical
429100	Notice of Violation	null	02/26/2019	Historical
428127	Notice of Violation		12/21/2018	Historical
423585	Notice of Violation		08/13/2018	Historical
402863	Notice of Violation		09/03/2015	Historical
402551	Notice of Violation		09/03/2014	Historical

Total Enf Actions: 7

Inspections

Attachment

Total Inspections: 0

Last Inspection: None

The current report was generated with data as of: 05/13/2025
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.

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