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Non-Transient Non-Community Water System · PWS AK2360248

Yksd - Merreline Kangas / Ruby

Ruby, Alaska 99768 - drinking water served from groundwater sources to 40 people, tracked in EPA SDWIS and UCMR5.

40
People served
138
EPA violations
16
Health-based
Untested
UCMR5 result

The verdict

EPA records 138 drinking-water violations at Yksd - Merreline Kangas / Ruby, 12% of them health-based - below the Alaska per-system average.

138
Total EPA violations on record
12%
Health-based (MCL / treatment failure)
40
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Yksd - Merreline Kangas / Ruby

Yksd - Merreline Kangas / Ruby is a state-owned non-transient non-community water system that delivers drinking water to 40 residents in Ruby, Alaska (Yukon-Koyukuk Census Area County) through 2 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 138 total violations for this system , of which 16 (12%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 74 monitoring and reporting violations are on file. The most recent violation on record dates to 2022.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 29 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Alaska, EPA tracks 1,326 public water systems serving 862,218 people, with 267,144 cumulative violations and 13,963 health-based violations on record. About 98% of systems in the state carry at least one violation, and state-wide the average per system is 201.5 violations. Statewide, 10 of 30 UCMR5-tested systems have reported PFAS detections (33.3%).

Yksd - Merreline Kangas / Ruby's 138 violations sit below the Alaska average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
40
Total Violations
138
Health-Based Violations
16
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
State
Connections
2
County
Yukon-Koyukuk Census Area
School/Daycare
Yes
MCL Violations
16
Monitoring Violations
74
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 29 2009
Coliform (TCR) MCL 16 2003
Nitrate MR 5 2021
Lead and Copper Rule MR 3 2022
Arsenic MR 3 2005
Mercury MR 2 1990
Cadmium MR 2 1990
Barium MR 2 1990
Selenium MR 2 1990
Fluoride MR 2 1990
Chromium MR 2 1990
o-Dichlorobenzene MR 1 2005
Vinyl chloride MR 1 2005
trans-1,2-Dichloroethylene MR 1 2005
1,2-Dichloroethane MR 1 2005
1,2-Dichloropropane MR 1 2005
1,1,2-Trichloroethane MR 1 2005
Tetrachloroethylene MR 1 2005
CHLOROBENZENE MR 1 2005
Benzene MR 1 2005
Styrene MR 1 2005
1,2,4-Trichlorobenzene MR 1 2005
Toluene MR 1 2005
1,1-Dichloroethylene MR 1 2005
Xylenes, Total MR 1 2005
cis-1,2-Dichloroethylene MR 1 2005
Carbon tetrachloride MR 1 2005
DICHLOROMETHANE MR 1 2005
p-Dichlorobenzene MR 1 2005
1,1,1-Trichloroethane MR 1 2005

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Yksd - Merreline Kangas / Ruby.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID AK2360248 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Alaska Drinking Water Authority

Alaska's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find AK regulator via EPA SDWIS

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2022 Lead and Copper Rule MR 3 SDWIS / AK2360248 / 5000
2021 Nitrate MR 5 SDWIS / AK2360248 / 1040
2021 Revised Total Coliform Rule MON 1 SDWIS / AK2360248 / 8000
2009 Coliform (TCR) MR 29 SDWIS / AK2360248 / 3100
2005 Arsenic MR 3 SDWIS / AK2360248 / 1005
2005 o-Dichlorobenzene MR 1 SDWIS / AK2360248 / 2968
2005 Vinyl chloride MR 1 SDWIS / AK2360248 / 2976
2005 trans-1,2-Dichloroethylene MR 1 SDWIS / AK2360248 / 2979
2005 1,2-Dichloroethane MR 1 SDWIS / AK2360248 / 2980
2005 1,2-Dichloropropane MR 1 SDWIS / AK2360248 / 2983
2005 1,1,2-Trichloroethane MR 1 SDWIS / AK2360248 / 2985
2005 Tetrachloroethylene MR 1 SDWIS / AK2360248 / 2987
2005 CHLOROBENZENE MR 1 SDWIS / AK2360248 / 2989
2005 Benzene MR 1 SDWIS / AK2360248 / 2990
2005 Styrene MR 1 SDWIS / AK2360248 / 2996

How Yksd - Merreline Kangas / Ruby Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Yksd - Merreline Kangas / Ruby Alaska avg Federal benchmark
Total violations 138 201.5 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 16 10.5 Indicates a contaminant exceeded a federal MCL
PFAS detection None 33.3% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 40 650 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,326 regulated public water systems in Alaska.

Federal MCL reference, Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Yksd - Merreline Kangas / Ruby water safe to drink? ▼
Yksd - Merreline Kangas / Ruby (PWS ID: AK2360248) has 138 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 40 people using Groundwater sources.
How many people does Yksd - Merreline Kangas / Ruby serve? ▼
Yksd - Merreline Kangas / Ruby serves 40 people in Ruby, Alaska. It is a State-owned system using Groundwater water sources with 2 service connections.
What type of violations does Yksd - Merreline Kangas / Ruby have? ▼
Yksd - Merreline Kangas / Ruby has 138 total violations: 16 health-based violations (MCL exceedances or treatment failures), 74 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Yksd - Merreline Kangas / Ruby water? ▼
No PFAS testing data is available for Yksd - Merreline Kangas / Ruby under the EPA's UCMR5 monitoring program.
What water source does Yksd - Merreline Kangas / Ruby use? ▼
Yksd - Merreline Kangas / Ruby uses Groundwater as its primary water source. It is classified as a Non-Transient Non-Community Water System, serving the same people for at least 6 months per year.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.