Public water system · CA2210932
ActiveUsfs - Dry Gulch/Dirt Flat Campground
At a glance
Usfs - Dry Gulch/Dirt Flat Campground (PWSID CA2210932) is an active transient non-community water system in Mariposa County, Arizona. It reports serving 55 people through 4 service connections. Its primary water source is groundwater, and EPA lists it as owned by the federal government. EPA's records list 2 violations for this system; all are health-based, and the most recent began in August 2015.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
55
Service connections
4
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Usfs - Dry Gulch/Dirt Flat Campground compare with other water systems in Mariposa County?
By EPA's size categories, Usfs - Dry Gulch/Dirt Flat Campground is a very small system (500 people or fewer). Mariposa County has 1 active public water system, and Usfs - Dry Gulch/Dirt Flat Campground is the largest of them by population served. Its population served is roughly in line with the county average of 55 people per system, and accounts for 100% of the 55 people reported by systems filed under the county. Across Arizona, the 1,769 active systems average 4,369 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Usfs - Dry Gulch/Dirt Flat Campground is about 62% below 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. Arizona has 601 active transient non-community water systems, 34% of the state's 1,769 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 1,612 Arizona systems (91%) list groundwater as their primary source.
Who owns and regulates Usfs - Dry Gulch/Dirt Flat Campground?
EPA lists Usfs - Dry Gulch/Dirt Flat Campground 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. 1 of the 1 active systems in Mariposa County (100%) are also owned by the federal government.
Does Usfs - Dry Gulch/Dirt Flat Campground have drinking water violations?
EPA's records list 2 violations for this system; all are health-based, and the most recent began in August 2015. The violations listed here began between June 2014 and August 2015. By type: 2 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (2 of them). 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 |
|---|---|---|---|---|
| 2015-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2014-06-01 | 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.
Usfs - Dry Gulch/Dirt Flat Campground: frequently asked questions
Who runs Usfs - Dry Gulch/Dirt Flat Campground?
Usfs - Dry Gulch/Dirt Flat Campground (PWSID CA2210932) 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 Usfs - Dry Gulch/Dirt Flat Campground serve?
Usfs - Dry Gulch/Dirt Flat Campground reports serving 55 people through 4 service connections in Mariposa County, Arizona.
Where does Usfs - Dry Gulch/Dirt Flat Campground 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 Usfs - Dry Gulch/Dirt Flat Campground have any drinking water violations?
EPA's records list 2 violations for this system; all are health-based, and the most recent began in August 2015. 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 Usfs - Dry Gulch/Dirt Flat Campground'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 August 2015. For current results, consult EPA ECHO, or the CA state drinking water program.
Where can I find Usfs - Dry Gulch/Dirt Flat Campground's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Usfs - Dry Gulch/Dirt Flat Campground 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.
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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, “Usfs - Dry Gulch/Dirt Flat Campground, PWSID CA2210932, Arizona”, https://aquacensus.com/water-systems/arizona/usfs-dry-gulch-dirt-flat-campground-ca2210932 (data as of October 1, 2026).