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Community Water System · PWS ME0091830

US Coastguard Station-Jonesport

Waterville, Maine 04901 - drinking water served from surface water sources to 25 people, tracked in EPA SDWIS and UCMR5.

25
People served
120
EPA violations
76
Health-based
Untested
UCMR5 result

The verdict

EPA records 120 drinking-water violations at US Coastguard Station-Jonesport, 63% of them health-based - above the Maine per-system average.

120
Total EPA violations on record
63%
Health-based (MCL / treatment failure)
25
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: US Coastguard Station-Jonesport

US Coastguard Station-Jonesport is a federal-owned community water system that delivers drinking water to 25 residents in Waterville, Maine (Washington County) through 10 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 120 total violations for this system , of which 76 (63%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 33 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 TTHM, recorded in 28 violations (MCL, health-based). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Maine, EPA tracks 1,864 public water systems serving 936,624 people, with 148,796 cumulative violations and 23,741 health-based violations on record. About 94% of systems in the state carry at least one violation, and state-wide the average per system is 79.8 violations. Statewide, 10 of 41 UCMR5-tested systems have reported PFAS detections (24.4%).

US Coastguard Station-Jonesport's 120 violations sit above the Maine 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
25
Total Violations
120
Health-Based Violations
76
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Federal
Connections
10
County
Washington
School/Daycare
No
MCL Violations
48
Monitoring Violations
33
Treatment Tech Violations
28

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
TTHM MCL 28 2024
Surface Water Treatment Rule TT 26 2025
Total Haloacetic Acids (HAA5) MCL 20 2024
Lead and Copper Rule MR 15 2022
Coliform (TCR) MR 11 2013
Public Notice Other 6 2014
Revised Total Coliform Rule MON 4 2016
Nitrate MR 3 1995
Lead and Copper Rule TT 2 2018

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 US Coastguard Station-Jonesport.

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 ME0091830 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Maine Drinking Water Authority

Maine'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 ME 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 Surface Water Treatment Rule TT 26 SDWIS / ME0091830 / 0200
2024 TTHM MCL 28 SDWIS / ME0091830 / 2950
2024 Total Haloacetic Acids (HAA5) MCL 20 SDWIS / ME0091830 / 2456
2022 Lead and Copper Rule MR 15 SDWIS / ME0091830 / 5000
2018 Lead and Copper Rule TT 2 SDWIS / ME0091830 / 5000
2016 Revised Total Coliform Rule MON 4 SDWIS / ME0091830 / 8000
2014 Public Notice Other 6 SDWIS / ME0091830 / 7500
2013 Coliform (TCR) MR 11 SDWIS / ME0091830 / 3100
1995 Nitrate MR 3 SDWIS / ME0091830 / 1040

How US Coastguard Station-Jonesport Compares

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

Metric US Coastguard Station-Jonesport Maine avg Federal benchmark
Total violations 120 79.8 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 76 12.7 Indicates a contaminant exceeded a federal MCL
PFAS detection None 24.4% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 25 502 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,864 regulated public water systems in Maine.

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 US Coastguard Station-Jonesport water safe to drink? ▼
US Coastguard Station-Jonesport (PWS ID: ME0091830) has 120 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 25 people using Surface Water sources.
How many people does US Coastguard Station-Jonesport serve? ▼
US Coastguard Station-Jonesport serves 25 people in Waterville, Maine. It is a Federal-owned system using Surface Water water sources with 10 service connections.
What type of violations does US Coastguard Station-Jonesport have? ▼
US Coastguard Station-Jonesport has 120 total violations: 76 health-based violations (MCL exceedances or treatment failures), 33 monitoring/reporting violations, and 28 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in US Coastguard Station-Jonesport water? ▼
No PFAS testing data is available for US Coastguard Station-Jonesport under the EPA's UCMR5 monitoring program.
What water source does US Coastguard Station-Jonesport use? ▼
US Coastguard Station-Jonesport uses Surface Water 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.