Public water system · AZ0401021
ActiveAz State Parks - Lyman Lake
At a glance
Az State Parks - Lyman Lake (PWSID AZ0401021) is an active transient non-community water system in Apache County, Arizona. It reports serving 100 people through 49 service connections. Its primary water source is groundwater, and EPA lists it as owned by a state government. Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in October 2022.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
100
Service connections
49
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Az State Parks - Lyman Lake compare with other water systems in Apache County?
By EPA's size categories, Az State Parks - Lyman Lake is a very small system (500 people or fewer). Apache County has 47 active public water systems. Its population served is well below the county average of 493 people per system, and accounts for 0.4% of the 23,153 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 Az State Parks - Lyman Lake is about 31% 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 Az State Parks - Lyman Lake?
EPA lists Az State Parks - Lyman Lake as owned by a state government. The AZ state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 4 of the 47 active systems in Apache County (8.5%) are also owned by a state government.
Does Az State Parks - Lyman Lake have drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in October 2022. The violations listed here began between October 2010 and October 2022. By type: 6 monitoring and reporting, 2 monitoring, 2 contaminant level above the legal limit, 1 reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Total coliform bacteria (TCR) (6 of them). EPA lists 12 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 |
|---|---|---|---|---|
| 2022-10-01 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2021-08-02 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2020-08-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2020-07-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2016-06-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, E. coli (RTCR) · code 1A | Revised Total Coliform Rulecode 8000 | Yes | Resolved |
| 2015-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2014-09-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2011-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2011-07-01 | Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2010-12-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2010-11-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2010-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
The 12 most recent 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.
Az State Parks - Lyman Lake: frequently asked questions
Who runs Az State Parks - Lyman Lake?
Az State Parks - Lyman Lake (PWSID AZ0401021) is a transient non-community water system owned by a state government. It is regulated by the AZ state drinking water program.
How many people does Az State Parks - Lyman Lake serve?
Az State Parks - Lyman Lake reports serving 100 people through 49 service connections in Apache County, Arizona.
Where does Az State Parks - Lyman Lake 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 Az State Parks - Lyman Lake have any drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in October 2022. 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 Az State Parks - Lyman Lake'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. Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in October 2022. For current results, consult EPA ECHO, or the AZ state drinking water program.
Where can I find Az State Parks - Lyman Lake's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Az State Parks - Lyman Lake 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 Apache County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Eagar Town of | Apache | 4,590 | Community | Groundwater |
| St Johns City of | Apache | 3,500 | Community | Groundwater |
| Springerville Town of | Apache | 1,972 | Community | Groundwater |
| Petrified Forest Np | Apache | 1,742 | Community | Purchased groundwater |
| Cedar Grove Water Company | Apache | 1,564 | Community | Groundwater |
| Lord Az Water 2 - Winchester Trails | Apache | 1,304 | 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, “Az State Parks - Lyman Lake, PWSID AZ0401021, Arizona”, https://aquacensus.com/water-systems/arizona/az-state-parks-lyman-lake-az0401021 (data as of October 1, 2026).