Public water system · TX0900021
ActiveUsfs Lake Mcclellan
At a glance
Usfs Lake Mcclellan (PWSID TX0900021) is an active transient non-community water system in Gray County, Oklahoma. It reports serving 40 people through 25 service connections. Its primary water source is groundwater, and EPA lists it as owned by the federal government. EPA's records list 4 violations for this system; none is health-based, and the most recent began in September 2020.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
40
Service connections
25
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Usfs Lake Mcclellan compare with other water systems in Gray County?
By EPA's size categories, Usfs Lake Mcclellan is a very small system (500 people or fewer). Gray County has 1 active public water system, and Usfs Lake Mcclellan is the largest of them by population served. Its population served is roughly in line with the county average of 40 people per system, and accounts for 100% of the 40 people reported by systems filed under the county. Across Oklahoma, the 1,254 active systems average 2,907 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Usfs Lake Mcclellan is well 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. Oklahoma has 306 active transient non-community water systems, 24% of the state's 1,254 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 701 Oklahoma systems (56%) list groundwater as their primary source.
Who owns and regulates Usfs Lake Mcclellan?
EPA lists Usfs Lake Mcclellan as owned by the federal government. The TX 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 Gray County (100%) are also owned by the federal government.
Does Usfs Lake Mcclellan have drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in September 2020. The violations listed here began between January 2005 and September 2020. By type: 2 monitoring and reporting, 1 monitoring 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. 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 |
|---|---|---|---|---|
| 2020-09-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2007-07-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2007-03-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2005-01-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 4 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 Lake Mcclellan: frequently asked questions
Who runs Usfs Lake Mcclellan?
Usfs Lake Mcclellan (PWSID TX0900021) is a transient non-community water system owned by the federal government. It is regulated by the TX state drinking water program.
How many people does Usfs Lake Mcclellan serve?
Usfs Lake Mcclellan reports serving 40 people through 25 service connections in Gray County, Oklahoma.
Where does Usfs Lake Mcclellan 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 Lake Mcclellan have any drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in September 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 Usfs Lake Mcclellan'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 4 violations for this system; none is health-based, and the most recent began in September 2020. For current results, consult EPA ECHO, or the TX state drinking water program.
Where can I find Usfs Lake Mcclellan's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Usfs Lake Mcclellan 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 Lake Mcclellan, PWSID TX0900021, Oklahoma”, https://aquacensus.com/water-systems/oklahoma/usfs-lake-mcclellan-tx0900021 (data as of October 1, 2026).