Public water system · CA0710002
ActiveGolden State Water Company - Bay Point
At a glance
Golden State Water Company - Bay Point (PWSID CA0710002) is an active community water system in Contra Costa County, California. It reports serving 23,731 people through 5,073 service connections. Its primary water source is purchased surface water, and EPA lists it as privately owned. EPA's records list 2 violations for this system; all are health-based, and the most recent began in January 2008.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
23,731
Service connections
5,073
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Golden State Water Company - Bay Point compare with other water systems in Contra Costa County?
By EPA's size categories, Golden State Water Company - Bay Point is a large system (10,001 to 100,000 people). Contra Costa County has 84 active public water systems. Its population served is about 3.5 times the county average of 6,726 people per system, and accounts for 4.2% of the 564,952 people reported by systems filed under the county. Across California, the 7,479 active systems average 5,706 people each. Nationally, the average active community water system reports serving 6,703 people, so Golden State Water Company - Bay Point is about 3.5 times that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. California has 2,997 active community water systems, 40% of the state's 7,479 active systems. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 506 California systems (6.8%) list purchased surface water as their primary source.
Who owns and regulates Golden State Water Company - Bay Point?
EPA lists Golden State Water Company - Bay Point as privately owned. The CA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 57 of the 84 active systems in Contra Costa County (68%) are also privately owned.
Does Golden State Water Company - Bay Point have drinking water violations?
EPA's records list 2 violations for this system; all are health-based, and the most recent began in January 2008. The violations listed here began between August 1994 and January 2008. By type: 2 contaminant level above the legal limit. The contaminants or rules involved are Total trihalomethanes (TTHM) and Total coliform bacteria (TCR). EPA lists 2 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2008-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 1994-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
All 2 violations in EPA's records, newest first. Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Golden State Water Company - Bay Point: frequently asked questions
Who runs Golden State Water Company - Bay Point?
Golden State Water Company - Bay Point (PWSID CA0710002) is a community water system privately owned. It is regulated by the CA state drinking water program.
How many people does Golden State Water Company - Bay Point serve?
Golden State Water Company - Bay Point reports serving 23,731 people through 5,073 service connections in Contra Costa County, California.
Where does Golden State Water Company - Bay Point get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Golden State Water Company - Bay Point have any drinking water violations?
EPA's records list 2 violations for this system; all are health-based, and the most recent began in January 2008. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Golden State Water Company - Bay Point's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. EPA's records list 2 violations for this system; all are health-based, and the most recent began in January 2008. For current results, consult the system's annual water quality report, EPA ECHO, or the CA state drinking water program.
Where can I find Golden State Water Company - Bay Point's water quality report?
As a community water system, Golden State Water Company - Bay Point must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Contra Costa County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Contra Costa Water District | Contra Costa | 198,000 | Community | Surface water |
| City of Antioch | Contra Costa | 115,074 | Community | Surface water |
| Brentwood | Contra Costa | 64,513 | Community | Purchased surface water |
| City of Pittsburg | Contra Costa | 62,500 | Community | Purchased surface water |
| Diablo Water District | Contra Costa | 43,357 | Community | Purchased surface water |
| City of Martinez | Contra Costa | 30,997 | Community | Purchased surface water |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Golden State Water Company - Bay Point, PWSID CA0710002, California”, https://aquacensus.com/water-systems/california/golden-state-water-company-bay-point-ca0710002 (data as of October 1, 2026).