Public water system · AK2220146
ActiveGemstone Estates
At a glance
Gemstone Estates (PWSID AK2220146) is an active community water system in Matanuska-Susitna Borough County, Alaska. It reports serving 75 people through 64 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in January 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
75
Service connections
64
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Gemstone Estates compare with other water systems in Matanuska-Susitna Borough County?
By EPA's size categories, Gemstone Estates is a very small system (500 people or fewer). Matanuska-Susitna Borough County has 342 active public water systems. Its population served is well below the county average of 264 people per system, and accounts for less than 0.1% 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 community water system reports serving 6,703 people, so Gemstone Estates is well below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Alaska has 406 active community water systems, 31% 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 Gemstone Estates?
EPA lists Gemstone Estates as privately owned. 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. 282 of the 342 active systems in Matanuska-Susitna Borough County (82%) are also privately owned.
Does Gemstone Estates have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in January 2026. The violations listed here began between October 2012 and January 2026. By type: 8 monitoring and reporting, 3 public notice, recordkeeping or other and 1 contaminant level above the legal limit. The contaminants or rules involved are Groundwater Rule, Public Notice, Consumer Confidence Rule and Fluoride. EPA lists 11 as resolved and 1 as unaddressed. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2026-01-09 | Public notice, recordkeeping or otherFailure to Consult with State · code 20 | Groundwater Rulecode 0700 | No | Unaddressed |
| 2024-05-21 | Public notice, recordkeeping or otherPublic Notification Violation without NPDWR Violation · code 76 | Public Noticecode 7500 | No | Resolved |
| 2020-10-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Fluoridecode 1025 | No | Resolved |
| 2015-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2012-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Chlorobenzenecode 2989 | No | Resolved |
| 2012-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | p-Dichlorobenzenecode 2969 | No | Resolved |
| 2012-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | trans-1,2-Dichloroethylenecode 2979 | No | Resolved |
| 2012-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Styrenecode 2996 | No | Resolved |
| 2012-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1,2-Trichloroethanecode 2985 | No | Resolved |
| 2012-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Tetrachloroethylenecode 2987 | No | Resolved |
| 2012-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Trichloroethylenecode 2984 | 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.
Gemstone Estates: frequently asked questions
Who runs Gemstone Estates?
Gemstone Estates (PWSID AK2220146) is a community water system privately owned. It is regulated by the AK state drinking water program.
How many people does Gemstone Estates serve?
Gemstone Estates reports serving 75 people through 64 service connections in Matanuska-Susitna Borough County, Alaska.
Where does Gemstone Estates 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 Gemstone Estates have any drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in January 2026. 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 Gemstone Estates' 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, one is health-based, and the most recent began in January 2026. For current results, consult the system's annual water quality report, EPA ECHO, or the AK state drinking water program.
Where can I find Gemstone Estates' water quality report?
As a community water system, Gemstone Estates must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
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, “Gemstone Estates, PWSID AK2220146, Alaska”, https://aquacensus.com/water-systems/alaska/gemstone-estates-ak2220146 (data as of October 1, 2026).