Non-Transient Non-Community Water System · PWS AK2331011

Prudhoe Bay Opt. Center

Anchorage, Alaska 99503 - drinking water served from surface water sources to 1,200 people, tracked in EPA SDWIS and UCMR5.

Compiled by PlainWater Editorial, Drinking Water Quality Editorial Team · May 15, 2026

1,200
People served: 191
EPA violations: 19
Health-based: Untested
UCMR5 result

The verdict

EPA records 191 drinking-water violations at Prudhoe Bay Opt. Center, 10% of them health-based - below the Alaska per-system average.

191
Total EPA violations on record: 10%
Health-based (MCL / treatment failure): 1,200
People served by this system: N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Prudhoe Bay Opt. Center

Prudhoe Bay Opt. Center is a private-owned non-transient non-community water system that delivers drinking water to 1,200 residents in Anchorage, Alaska (North Slope Borough County) through 5 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 191 total violations for this system , of which 19 (10%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 123 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Surface Water Treatment Rule, recorded in 23 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%).

Prudhoe Bay Opt. Center's 191 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

1,200

Total Violations

191

Health-Based Violations

Water Source

Surface Water

System Details

System Type: Non-Transient Non-Community
Owner Type: Private
Connections: 5
County: North Slope Borough
School/Daycare: No
MCL Violations: 1
Monitoring Violations: 123
Treatment Tech Violations: 18

Violation History

Contaminant violations recorded by EPA.

Contaminant	Category	Count	Latest
Surface Water Treatment Rule	MR	23	2006
CARBON, TOTAL	TT	14	2004
Chlorine	MR	11	2006
TTHM	MR	9	2023
CARBON, TOTAL	MR	7	2022
Total Haloacetic Acids (HAA5)	MR	6	2023
Trichloroethylene	MR	4	2001
Benzene	MR	4	2001
1,1,1-Trichloroethane	MR	3	1994
Styrene	MR	3	1994
Toluene	MR	3	1994
trans-1,2-Dichloroethylene	MR	3	1994
Vinyl chloride	MR	3	1994
cis-1,2-Dichloroethylene	MR	3	1994
Coliform (TCR)	MR	3	2001
1,1-Dichloroethylene	MR	3	1994
Ethylbenzene	MR	3	1994
1,2-Dichloropropane	MR	3	1994
p-Dichlorobenzene	MR	3	1994
Carbon tetrachloride	MR	3	1994
DICHLOROMETHANE	MR	3	1994
Tetrachloroethylene	MR	3	1994
1,2-Dichloroethane	MR	3	1994
1,1,2-Trichloroethane	MR	3	1994
o-Dichlorobenzene	MR	3	1994
Xylenes, Total	MR	3	1994
CHLOROBENZENE	MR	3	1994
Interim Enhanced Surface Water Treatment Rule	TT	3	2025
Nitrate	MR	1	1986
Surface Water Treatment Rule	TT	1	2001

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 Prudhoe Bay Opt. Center.

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 AK2331011 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
2025	Interim Enhanced Surface Water Treatment Rule	TT	3	SDWIS / AK2331011 / 0300
2023	TTHM	MR	9	SDWIS / AK2331011 / 2950
2023	Total Haloacetic Acids (HAA5)	MR	6	SDWIS / AK2331011 / 2456
2022	CARBON, TOTAL	MR	7	SDWIS / AK2331011 / 2920
2021	TTHM	MCL	1	SDWIS / AK2331011 / 2950
2006	Surface Water Treatment Rule	MR	23	SDWIS / AK2331011 / 0200
2006	Chlorine	MR	11	SDWIS / AK2331011 / 0999
2004	CARBON, TOTAL	TT	14	SDWIS / AK2331011 / 2920
2002	Fluoride	MR	1	SDWIS / AK2331011 / 1025
2001	Trichloroethylene	MR	4	SDWIS / AK2331011 / 2984
2001	Benzene	MR	4	SDWIS / AK2331011 / 2990
2001	Coliform (TCR)	MR	3	SDWIS / AK2331011 / 3100
2001	Surface Water Treatment Rule	TT	1	SDWIS / AK2331011 / 0200
1994	1,1,1-Trichloroethane	MR	3	SDWIS / AK2331011 / 2981
1994	Styrene	MR	3	SDWIS / AK2331011 / 2996

How Prudhoe Bay Opt. Center Compares

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

Metric	Prudhoe Bay Opt. Center	Alaska avg	Federal benchmark
Total violations	191	201.5	SDWA compliance, any non-zero count is a recorded breach
Health-based violations	19	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	1,200	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 Prudhoe Bay Opt. Center water safe to drink? ▼

Prudhoe Bay Opt. Center (PWS ID: AK2331011) has 191 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,200 people using Surface Water sources.

How many people does Prudhoe Bay Opt. Center serve? ▼

Prudhoe Bay Opt. Center serves 1,200 people in Anchorage, Alaska. It is a Private-owned system using Surface Water water sources with 5 service connections.

What type of violations does Prudhoe Bay Opt. Center have? ▼

Prudhoe Bay Opt. Center has 191 total violations: 19 health-based violations (MCL exceedances or treatment failures), 123 monitoring/reporting violations, and 18 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.

Has PFAS been detected in Prudhoe Bay Opt. Center water? ▼

No PFAS testing data is available for Prudhoe Bay Opt. Center under the EPA's UCMR5 monitoring program.

What water source does Prudhoe Bay Opt. Center use? ▼

Prudhoe Bay Opt. Center uses Surface Water 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.