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COLONIAL PARK S/D

PWS ID: AK2211562 · ANCHORAGE, Alaska 99523-3368

COLONIAL PARK S/D serves 63 people in ANCHORAGE, Alaska using Groundwater water sources. It has 432 recorded EPA violations, including 0 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: COLONIAL PARK S/D

COLONIAL PARK S/D is a private-owned community water system that delivers drinking water to 63 residents in ANCHORAGE, Alaska (Anchorage Municipality County) through 21 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 432 total violations for this system , of which 0 (0%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 388 monitoring and reporting violations are on file. The most recent violation on record dates to 2020.

The most frequently cited contaminant at this system is Pentachlorophenol, recorded in 11 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. COLONIAL PARK S/D's 432 violations sit above the Alaska average. Statewide, 10 of 30 UCMR5-tested systems have reported PFAS detections (33.3%). 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
63
Total Violations
432
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
21
County
Anchorage Municipality
School/Daycare
No
MCL Violations
0
Monitoring Violations
388
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Pentachlorophenol MR 11 2010
Heptachlor epoxide MR 11 2010
Heptachlor MR 11 2010
Diquat MR 11 2010
Chlordane MR 11 2010
2,4-D MR 11 2010
Toxaphene MR 11 2010
BHC-GAMMA MR 11 2010
Methoxychlor MR 11 2010
Total Polychlorinated Biphenyls (PCB) MR 11 2010
Picloram MR 11 2010
ETHYLENE DIBROMIDE MR 11 2010
Atrazine MR 11 2010
Endrin MR 11 2010
2,4,5-TP MR 11 2010
Simazine MR 11 2010
Dinoseb MR 11 2010
Coliform (TCR) MR 8 2011
Hexachlorocyclopentadiene MR 7 2010
Di(2-ethylhexyl) adipate MR 7 2010
Glyphosate MR 7 2010
1,2-DIBROMO-3-CHLOROPROPANE MR 7 2010
Dalapon MR 7 2010
2,3,7,8-TCDD MR 7 2010
HEXACHLOROBENZENE MR 7 2010
OXAMYL MR 7 2010
Di(2-ethylhexyl) phthalate MR 7 2010
Benzo(a)pyrene MR 7 2010
Endothall MR 7 2010
LASSO MR 7 2010

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 COLONIAL PARK S/D.

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 AK2211562 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
2020 Combined Radium (-226 and -228) MR 2 SDWIS / AK2211562 / 4010
2018 Consumer Confidence Rule Other 4 SDWIS / AK2211562 / 7000
2011 Coliform (TCR) MR 8 SDWIS / AK2211562 / 3100
2010 Pentachlorophenol MR 11 SDWIS / AK2211562 / 2326
2010 Heptachlor epoxide MR 11 SDWIS / AK2211562 / 2067
2010 Heptachlor MR 11 SDWIS / AK2211562 / 2065
2010 Diquat MR 11 SDWIS / AK2211562 / 2032
2010 Chlordane MR 11 SDWIS / AK2211562 / 2959
2010 2,4-D MR 11 SDWIS / AK2211562 / 2105
2010 Toxaphene MR 11 SDWIS / AK2211562 / 2020
2010 BHC-GAMMA MR 11 SDWIS / AK2211562 / 2010
2010 Methoxychlor MR 11 SDWIS / AK2211562 / 2015
2010 Total Polychlorinated Biphenyls (PCB) MR 11 SDWIS / AK2211562 / 2383
2010 Picloram MR 11 SDWIS / AK2211562 / 2040
2010 ETHYLENE DIBROMIDE MR 11 SDWIS / AK2211562 / 2946

How COLONIAL PARK S/D Compares

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

Metric COLONIAL PARK S/D Alaska avg Federal benchmark
Total violations 432 201.5 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 0 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 63 650 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
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is COLONIAL PARK S/D water safe to drink? ▼
COLONIAL PARK S/D (PWS ID: AK2211562) has 432 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 63 people using Groundwater sources.
How many people does COLONIAL PARK S/D serve? ▼
COLONIAL PARK S/D serves 63 people in ANCHORAGE, Alaska. It is a Private-owned system using Groundwater water sources with 21 service connections.
What type of violations does COLONIAL PARK S/D have? ▼
COLONIAL PARK S/D has 432 total violations: 0 health-based violations (MCL exceedances or treatment failures), 388 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in COLONIAL PARK S/D water? ▼
No PFAS testing data is available for COLONIAL PARK S/D under the EPA's UCMR5 monitoring program.
What water source does COLONIAL PARK S/D use? ▼
COLONIAL PARK S/D uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
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.

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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.

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