Public water system · AK2225968
ActiveMsbsd Ron Larson School
At a glance
Msbsd Ron Larson School (PWSID AK2225968) is an active non-transient non-community water system in Matanuska-Susitna Borough County, Alaska. It reports serving 505 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 5 violations for this system; 2 are health-based, and the most recent began in October 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
505
Service connections
1
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Msbsd Ron Larson School compare with other water systems in Matanuska-Susitna Borough County?
By EPA's size categories, Msbsd Ron Larson School is a small system (501 to 3,300 people). Matanuska-Susitna Borough County has 342 active public water systems. Its population served is about twice the county average of 264 people per system, and accounts for 0.6% of the 90,225 people reported by systems filed under the county. Across Alaska, the 1,322 active systems average 653 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Msbsd Ron Larson School is about 17% above 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. Alaska has 227 active non-transient non-community water systems, 17% of the state's 1,322 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 1,054 Alaska systems (80%) list groundwater as their primary source.
Who owns and regulates Msbsd Ron Larson School?
EPA lists Msbsd Ron Larson School as owned by a local government. The AK state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 53 of the 342 active systems in Matanuska-Susitna Borough County (15%) are also owned by a local government.
Does Msbsd Ron Larson School have drinking water violations?
EPA's records list 5 violations for this system; 2 are health-based, and the most recent began in October 2025. The violations listed here began between October 2006 and October 2025. By type: 2 required treatment not met, 2 monitoring and reporting and 1 monitoring. The contaminant or rule involved most often is Groundwater Rule (2 of them). EPA lists 4 as resolved and 1 as archived. 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. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2022-07-02 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2016-12-17 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2011-01-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2006-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Archived |
All 5 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.
Msbsd Ron Larson School: frequently asked questions
Who runs Msbsd Ron Larson School?
Msbsd Ron Larson School (PWSID AK2225968) is a non-transient non-community water system owned by a local government. It is regulated by the AK state drinking water program.
How many people does Msbsd Ron Larson School serve?
Msbsd Ron Larson School reports serving 505 people through 1 service connection in Matanuska-Susitna Borough County, Alaska.
Where does Msbsd Ron Larson School 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 Msbsd Ron Larson School have any drinking water violations?
EPA's records list 5 violations for this system; 2 are health-based, and the most recent began in October 2025. 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 Msbsd Ron Larson School'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 5 violations for this system; 2 are health-based, and the most recent began in October 2025. For current results, consult EPA ECHO, or the AK state drinking water program.
Where can I find Msbsd Ron Larson School's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Msbsd Ron Larson School 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 Matanuska-Susitna Borough County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Wasilla Water System | Matanuska-Susitna Borough | 18,492 | Community | Groundwater |
| Palmer Water System | Matanuska-Susitna Borough | 8,111 | Community | Groundwater |
| Unified Alaskan Utilities Settlers Bay | Matanuska-Susitna Borough | 2,733 | Community | Groundwater |
| Msbsd Colony Schools | Matanuska-Susitna Borough | 1,961 | Non-transient non-community | Groundwater |
| Talkeetna Water System | Matanuska-Susitna Borough | 1,850 | Community | Groundwater |
| Valley Utilities LLC | Matanuska-Susitna Borough | 1,590 | 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, “Msbsd Ron Larson School, PWSID AK2225968, Alaska”, https://aquacensus.com/water-systems/alaska/msbsd-ron-larson-school-ak2225968 (data as of October 1, 2026).