Public water system · CA1010500
ActiveNps-Sheep Creek
At a glance
Nps-Sheep Creek (PWSID CA1010500) is an active transient non-community water system in Fresno County, California. It reports serving 2,900 people through 76 service connections. Its primary water source is surface water, and EPA lists it as owned by the federal government. EPA's records list 6 violations for this system; 4 are health-based, and the most recent began in November 2019.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
2,900
Service connections
76
Primary source
SW
Surface water
System type
TNCWS
Transient non-community water system
System record
How does Nps-Sheep Creek compare with other water systems in Fresno County?
By EPA's size categories, Nps-Sheep Creek is a small system (501 to 3,300 people). Fresno County has 328 active public water systems. Its population served is roughly in line with the county average of 3,205 people per system, and accounts for 0.3% 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 transient non-community water system reports serving 144 people, so Nps-Sheep Creek is about 20 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. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 609 California systems (8.1%) list surface water as their primary source.
Who owns and regulates Nps-Sheep Creek?
EPA lists Nps-Sheep Creek as owned by the federal 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. 14 of the 328 active systems in Fresno County (4.3%) are also owned by the federal government.
Does Nps-Sheep Creek have drinking water violations?
EPA's records list 6 violations for this system; 4 are health-based, and the most recent began in November 2019. The violations listed here began between June 1998 and November 2019. By type: 3 required treatment not met, 1 public notice, recordkeeping or other, 1 contaminant level above the legal limit and 1 monitoring and reporting. The contaminant or rule involved most often is Groundwater Rule (2 of them). EPA lists 6 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 |
|---|---|---|---|---|
| 2019-11-10 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2019-08-12 | Public notice, recordkeeping or otherFailure to Consult with State · code 20 | Groundwater Rulecode 0700 | No | Resolved |
| 2015-05-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2012-08-01 | Required treatment not metMonthly Turbidity Exceed (Enhanced SWTR) · code 44 | Interim Enhanced Surface Water Treatment Rulecode 0300 | Yes | Resolved |
| 2000-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 1998-06-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Resolved |
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.
Nps-Sheep Creek: frequently asked questions
Who runs Nps-Sheep Creek?
Nps-Sheep Creek (PWSID CA1010500) is a transient non-community water system owned by the federal government. It is regulated by the CA state drinking water program.
How many people does Nps-Sheep Creek serve?
Nps-Sheep Creek reports serving 2,900 people through 76 service connections in Fresno County, California.
Where does Nps-Sheep Creek get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does Nps-Sheep Creek have any drinking water violations?
EPA's records list 6 violations for this system; 4 are health-based, and the most recent began in November 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 Nps-Sheep Creek'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; 4 are health-based, and the most recent began in November 2019. For current results, consult EPA ECHO, or the CA state drinking water program.
Where can I find Nps-Sheep Creek's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Nps-Sheep Creek 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 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, “Nps-Sheep Creek, PWSID CA1010500, California”, https://aquacensus.com/water-systems/california/nps-sheep-creek-ca1010500 (data as of October 1, 2026).