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Community Water System · PWS AK2211619

Mayflower Tc

Anchorage, Alaska 99504 - drinking water served from groundwater sources to 650 people, tracked in EPA SDWIS and UCMR5.

650
People served
459
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 459 drinking-water violations at Mayflower Tc - above the Alaska per-system average.

459
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
650
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Mayflower Tc

Mayflower Tc is a local-owned community water system that delivers drinking water to 650 residents in Anchorage, Alaska (Anchorage Municipality County) through 220 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 459 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 393 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 Coliform (TCR), recorded in 34 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%).

Mayflower Tc's 459 violations sit above 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
650
Total Violations
459
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
220
County
Anchorage Municipality
School/Daycare
No
MCL Violations
0
Monitoring Violations
393
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 34 2011
Nitrate MR 9 2008
Dinoseb MR 9 2010
Endrin MR 9 2010
Total Polychlorinated Biphenyls (PCB) MR 9 2010
Pentachlorophenol MR 9 2010
Heptachlor epoxide MR 9 2010
Heptachlor MR 9 2010
ETHYLENE DIBROMIDE MR 9 2010
Chlordane MR 9 2010
Atrazine MR 9 2010
2,4-D MR 9 2010
Methoxychlor MR 9 2010
Simazine MR 9 2010
Picloram MR 9 2010
Diquat MR 9 2010
2,4,5-TP MR 9 2010
BHC-GAMMA MR 9 2010
Toxaphene MR 9 2010
Arsenic MR 9 2024
Consumer Confidence Rule Other 6 2020
1,1,2-Trichloroethane MR 5 1997
p-Dichlorobenzene MR 5 1997
1,1,1-Trichloroethane MR 5 1997
o-Dichlorobenzene MR 5 1997
CHLOROBENZENE MR 5 1997
Ethylbenzene MR 5 1997
cis-1,2-Dichloroethylene MR 5 1997
Toluene MR 5 1997
Tetrachloroethylene MR 5 1997

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 Mayflower Tc.

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 AK2211619 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 Lead and Copper Rule MR 2 SDWIS / AK2211619 / 5000
2024 Arsenic MR 9 SDWIS / AK2211619 / 1005
2020 Consumer Confidence Rule Other 6 SDWIS / AK2211619 / 7000
2011 Coliform (TCR) MR 34 SDWIS / AK2211619 / 3100
2010 Dinoseb MR 9 SDWIS / AK2211619 / 2041
2010 Endrin MR 9 SDWIS / AK2211619 / 2005
2010 Total Polychlorinated Biphenyls (PCB) MR 9 SDWIS / AK2211619 / 2383
2010 Pentachlorophenol MR 9 SDWIS / AK2211619 / 2326
2010 Heptachlor epoxide MR 9 SDWIS / AK2211619 / 2067
2010 Heptachlor MR 9 SDWIS / AK2211619 / 2065
2010 ETHYLENE DIBROMIDE MR 9 SDWIS / AK2211619 / 2946
2010 Chlordane MR 9 SDWIS / AK2211619 / 2959
2010 Atrazine MR 9 SDWIS / AK2211619 / 2050
2010 2,4-D MR 9 SDWIS / AK2211619 / 2105
2010 Methoxychlor MR 9 SDWIS / AK2211619 / 2015

How Mayflower Tc Compares

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

Metric Mayflower Tc Alaska avg Federal benchmark
Total violations 459 201.5 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 650 650 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 Mayflower Tc water safe to drink? ▼
Mayflower Tc (PWS ID: AK2211619) has 459 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 650 people using Groundwater sources.
How many people does Mayflower Tc serve? ▼
Mayflower Tc serves 650 people in Anchorage, Alaska. It is a Local-owned system using Groundwater water sources with 220 service connections.
What type of violations does Mayflower Tc have? ▼
Mayflower Tc has 459 total violations: 0 health-based violations (MCL exceedances or treatment failures), 393 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Mayflower Tc water? ▼
No PFAS testing data is available for Mayflower Tc under the EPA's UCMR5 monitoring program.
What water source does Mayflower Tc use? ▼
Mayflower Tc 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.
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.