Public water system · AK2310879
ActiveRainbow Valley MHP
At a glance
Rainbow Valley MHP (PWSID AK2310879) is an active community water system in Fairbanks North Star Borough County, Alaska. It reports serving 105 people through 43 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, 5 are health-based, and the most recent began in January 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
105
Service connections
43
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Rainbow Valley MHP compare with other water systems in Fairbanks North Star Borough County?
By EPA's size categories, Rainbow Valley MHP is a very small system (500 people or fewer). Fairbanks North Star Borough County has 65 active public water systems. Its population served is well below the county average of 2,499 people per system, and accounts for less than 0.1% of the 162,441 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 Rainbow Valley MHP 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 Rainbow Valley MHP?
EPA lists Rainbow Valley MHP 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. 50 of the 65 active systems in Fairbanks North Star Borough County (77%) are also privately owned.
Does Rainbow Valley MHP have drinking water violations?
Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in January 2025. The violations listed here began between January 2022 and January 2025. By type: 5 required treatment not met, 5 monitoring and reporting, 1 public notice, recordkeeping or other and 1 monitoring. The contaminant or rule involved most often is Groundwater Rule (5 of them). EPA lists 9 as resolved and 3 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 |
|---|---|---|---|---|
| 2025-01-02 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2025-01-02 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2025-01-02 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Unaddressed |
| 2025-01-02 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Unaddressed |
| 2025-01-02 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Unaddressed |
| 2023-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2022-02-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2022-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Heptachlorcode 2065 | No | Resolved |
| 2022-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Glyphosatecode 2034 | No | Resolved |
| 2022-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Benzo(a)pyrenecode 2306 | No | Resolved |
| 2022-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Chlordanecode 2959 | No | Resolved |
| 2022-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Hexachlorobenzenecode 2274 | 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.
Rainbow Valley MHP: frequently asked questions
Who runs Rainbow Valley MHP?
Rainbow Valley MHP (PWSID AK2310879) is a community water system privately owned. It is regulated by the AK state drinking water program.
How many people does Rainbow Valley MHP serve?
Rainbow Valley MHP reports serving 105 people through 43 service connections in Fairbanks North Star Borough County, Alaska.
Where does Rainbow Valley MHP 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 Rainbow Valley MHP have any drinking water violations?
Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in January 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 Rainbow Valley MHP'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, 5 are health-based, and the most recent began in January 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the AK state drinking water program.
Where can I find Rainbow Valley MHP's water quality report?
As a community water system, Rainbow Valley MHP 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 Fairbanks North Star Borough County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Golden Heart Utilities | Fairbanks North Star Borough | 78,324 | Community | Groundwater |
| College Utilities Corporation | Fairbanks North Star Borough | 27,000 | Community | Purchased groundwater |
| Ft Wainwright - Main Post | Fairbanks North Star Borough | 20,076 | Community | Groundwater |
| Eielson - Air Force Base | Fairbanks North Star Borough | 11,870 | Community | Groundwater |
| University of Alaska - Fairbanks | Fairbanks North Star Borough | 6,200 | Community | Purchased groundwater |
| North Pole Utilities | Fairbanks North Star Borough | 4,005 | 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, “Rainbow Valley MHP, PWSID AK2310879, Alaska”, https://aquacensus.com/water-systems/alaska/rainbow-valley-mhp-ak2310879 (data as of October 1, 2026).