Public water system · CA4310300
ActiveCsp Henry W. Coe State Park
At a glance
Csp Henry W. Coe State Park (PWSID CA4310300) is an active transient non-community water system in Santa Clara County, California. It reports serving 1,205 people through 5 service connections. Its primary water source is groundwater, and EPA lists it as owned by a state government. EPA's records list 6 violations for this system; 2 are health-based, and the most recent began in August 2020.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,205
Service connections
5
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Csp Henry W. Coe State Park compare with other water systems in Santa Clara County?
By EPA's size categories, Csp Henry W. Coe State Park is a small system (501 to 3,300 people). Santa Clara County has 121 active public water systems. Its population served is well below the county average of 17,334 people per system, and accounts for less than 0.1% of the 2,097,447 people reported by systems filed under the county. Across California, the 7,479 active systems average 5,706 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Csp Henry W. Coe State Park is about 8.4 times that figure.
What does “transient non-community water system” mean?
A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. California has 3,016 active transient non-community water systems, 40% of the state's 7,479 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 6,179 California systems (83%) list groundwater as their primary source.
Who owns and regulates Csp Henry W. Coe State Park?
EPA lists Csp Henry W. Coe State Park as owned by a state government. 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. 3 of the 121 active systems in Santa Clara County (2.5%) are also owned by a state government.
Does Csp Henry W. Coe State Park have drinking water violations?
EPA's records list 6 violations for this system; 2 are health-based, and the most recent began in August 2020. The violations listed here began between February 1986 and August 2020. By type: 2 monitoring and reporting, 1 monitoring, 1 required treatment not met, 1 contaminant level above the legal limit and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Total coliform bacteria (TCR) (2 of them). EPA lists 4 as resolved and 2 as archived. 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. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2020-08-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Archived |
| 2020-02-01 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2007-07-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Resolved |
| 1997-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1995-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1986-02-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
All 6 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.
Csp Henry W. Coe State Park: frequently asked questions
Who runs Csp Henry W. Coe State Park?
Csp Henry W. Coe State Park (PWSID CA4310300) is a transient non-community water system owned by a state government. It is regulated by the CA state drinking water program.
How many people does Csp Henry W. Coe State Park serve?
Csp Henry W. Coe State Park reports serving 1,205 people through 5 service connections in Santa Clara County, California.
Where does Csp Henry W. Coe State Park get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Csp Henry W. Coe State Park have any drinking water violations?
EPA's records list 6 violations for this system; 2 are health-based, and the most recent began in August 2020. 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 Csp Henry W. Coe State Park'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 6 violations for this system; 2 are health-based, and the most recent began in August 2020. For current results, consult EPA ECHO, or the CA state drinking water program.
Where can I find Csp Henry W. Coe State Park's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Csp Henry W. Coe State Park is a transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in Santa Clara County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| San Jose Water | Santa Clara | 1,039,920 | Community | Surface water |
| City of Sunnyvale | Santa Clara | 157,566 | Community | Purchased surface water |
| City of Santa Clara | Santa Clara | 130,746 | Community | Purchased surface water |
| Great Oaks Wc Inc. | Santa Clara | 110,088 | Community | Groundwater |
| City of San Jose - Evg/Edv/Coy | Santa Clara | 101,265 | Community | Purchased surface water |
| City of Milpitas | Santa Clara | 81,773 | 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, “Csp Henry W. Coe State Park, PWSID CA4310300, California”, https://aquacensus.com/water-systems/california/csp-henry-w-coe-state-park-ca4310300 (data as of October 1, 2026).