Public water system · CA1000279

Active

U.C. Kearney Field Station

At a glance

U.C. Kearney Field Station (PWSID CA1000279) is an active non-transient non-community water system in Fresno County, California. It reports serving 190 people through 29 service connections. Its primary water source is groundwater, and EPA lists it as owned by a state government. EPA's records list 10 violations for this system; 2 are health-based, and the most recent began in January 2019.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

190

Service connections

Primary source

Groundwater

System type

NTNCWS

Non-transient non-community water system

System record

PWSIDCA1000279

System typeNon-transient non-community water system

Activity statusActive

Population served190

Service connections29

Primary water sourceGroundwater

Owner typeState government

Primacy agencyCA state drinking water program

City served—

StateCalifornia

ZIP—

CountyFresno County

How does U.C. Kearney Field Station compare with other water systems in Fresno County?

By EPA's size categories, U.C. Kearney Field Station is a very small system (500 people or fewer). Fresno County has 328 active public water systems. Its population served is well below the county average of 3,205 people per system, and accounts for less than 0.1% of the 1,051,276 people reported by systems filed under the county. Across California, the 7,479 active systems average 5,706 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so U.C. Kearney Field Station is about 56% below that figure.

What does “non-transient non-community water system” mean?

A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. California has 1,466 active non-transient non-community water systems, 20% 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 U.C. Kearney Field Station?

EPA lists U.C. Kearney Field Station 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 328 active systems in Fresno County (0.9%) are also owned by a state government.

Does U.C. Kearney Field Station have drinking water violations?

EPA's records list 10 violations for this system; 2 are health-based, and the most recent began in January 2019. The violations listed here began between July 1993 and January 2019. By type: 8 monitoring and reporting and 2 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (6 of them). EPA lists 10 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
2019-01-01	Monitoring and reportingMonitoring, Regular · code 03	Nitratecode 1040	No	Resolved
2012-04-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
2008-01-01	Monitoring and reportingMonitoring, Regular · code 03	Nitratecode 1040	No	Resolved
2007-11-01	Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24	Total coliform bacteria (TCR)code 3100	No	Resolved
2006-01-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
2004-07-01	Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24	Total coliform bacteria (TCR)code 3100	No	Resolved
2001-05-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2001-04-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2000-01-01	Monitoring and reportingMonitoring, Regular · code 03	Nitratecode 1040	No	Resolved
1993-07-01	Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51	Lead and Copper Rulecode 5000	No	Resolved

All 10 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.

U.C. Kearney Field Station: frequently asked questions

Who runs U.C. Kearney Field Station?

U.C. Kearney Field Station (PWSID CA1000279) is a non-transient non-community water system owned by a state government. It is regulated by the CA state drinking water program.

How many people does U.C. Kearney Field Station serve?

U.C. Kearney Field Station reports serving 190 people through 29 service connections in Fresno County, California.

Where does U.C. Kearney Field Station 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 U.C. Kearney Field Station have any drinking water violations?

EPA's records list 10 violations for this system; 2 are health-based, and the most recent began in January 2019. 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 U.C. Kearney Field Station'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 10 violations for this system; 2 are health-based, and the most recent began in January 2019. For current results, consult EPA ECHO, or the CA state drinking water program.

Where can I find U.C. Kearney Field Station's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. U.C. Kearney Field Station is a non-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 Fresno County

Water system	County	Population served	Type	Source
City of Fresno	Fresno	545,716	Community	Surface water
City of Clovis	Fresno	130,130	Community	Surface water
California State University Fresno	Fresno	41,000	Community	Groundwater
Cws - Selma	Fresno	26,517	Community	Groundwater
City of Sanger	Fresno	26,357	Community	Groundwater
Reedley, City of	Fresno	26,076	Community	Groundwater

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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, “U.C. Kearney Field Station, PWSID CA1000279, California”, https://aquacensus.com/water-systems/california/u-c-kearney-field-station-ca1000279 (data as of October 1, 2026).