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Transient Non-Community Water System · PWS MA4086048

Seaman Cottages LLC

North Eastham, Massachusetts 02651 - drinking water served from groundwater sources to 36 people, tracked in EPA SDWIS and UCMR5.

36
People served
40
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 40 drinking-water violations at Seaman Cottages LLC - below the Massachusetts per-system average.

40
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
36
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Seaman Cottages LLC

Seaman Cottages LLC is a private-owned transient non-community water system that delivers drinking water to 36 residents in North Eastham, Massachusetts (Barnstable County) through 10 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 40 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 38 monitoring and reporting violations are on file. The most recent violation on record dates to 2008.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 12 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 Massachusetts, EPA tracks 1,599 public water systems serving 10,332,845 people, with 73,886 cumulative violations and 7,389 health-based violations on record. About 95% of systems in the state carry at least one violation, and state-wide the average per system is 46.2 violations. Statewide, 143 of 263 UCMR5-tested systems have reported PFAS detections (54.4%).

Seaman Cottages LLC's 40 violations sit below the Massachusetts 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
36
Total Violations
40
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Transient Non-Community
Owner Type
Private
Connections
10
County
Barnstable
School/Daycare
No
MCL Violations
0
Monitoring Violations
38
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 12 2004
Nitrate MR 4 2008
Nitrite MR 1 2000
cis-1,2-Dichloroethylene MR 1 2000
Xylenes, Total MR 1 2000
DICHLOROMETHANE MR 1 2000
1,2-Dichloroethane MR 1 2000
1,1,1-Trichloroethane MR 1 2000
Trichloroethylene MR 1 2000
1,1,2-Trichloroethane MR 1 2000
Tetrachloroethylene MR 1 2000
Toluene MR 1 2000
Styrene MR 1 2000
CHLOROBENZENE MR 1 2000
Benzene MR 1 2000
Carbon tetrachloride MR 1 2000
o-Dichlorobenzene MR 1 2000
p-Dichlorobenzene MR 1 2000
Ethylbenzene MR 1 2000
1,1-Dichloroethylene MR 1 2000
1,2-Dichloropropane MR 1 2000
1,2,4-Trichlorobenzene MR 1 2000
trans-1,2-Dichloroethylene MR 1 2000
Vinyl chloride MR 1 2000

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 Seaman Cottages LLC.

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 MA4086048 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Massachusetts Drinking Water Authority

MassDEP, Drinking Water Program is the primacy agency that licenses and inspects Seaman Cottages LLC under EPA-delegated authority.

Open MA regulator portal

Source: MassDEP, Drinking Water Program

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
2008 Nitrate MR 4 SDWIS / MA4086048 / 1040
2004 Coliform (TCR) MR 12 SDWIS / MA4086048 / 3100
2000 Nitrite MR 1 SDWIS / MA4086048 / 1041
2000 cis-1,2-Dichloroethylene MR 1 SDWIS / MA4086048 / 2380
2000 Xylenes, Total MR 1 SDWIS / MA4086048 / 2955
2000 DICHLOROMETHANE MR 1 SDWIS / MA4086048 / 2964
2000 1,2-Dichloroethane MR 1 SDWIS / MA4086048 / 2980
2000 1,1,1-Trichloroethane MR 1 SDWIS / MA4086048 / 2981
2000 Trichloroethylene MR 1 SDWIS / MA4086048 / 2984
2000 1,1,2-Trichloroethane MR 1 SDWIS / MA4086048 / 2985
2000 Tetrachloroethylene MR 1 SDWIS / MA4086048 / 2987
2000 Toluene MR 1 SDWIS / MA4086048 / 2991
2000 Styrene MR 1 SDWIS / MA4086048 / 2996
2000 CHLOROBENZENE MR 1 SDWIS / MA4086048 / 2989
2000 Benzene MR 1 SDWIS / MA4086048 / 2990

How Seaman Cottages LLC Compares

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

Metric Seaman Cottages LLC Massachusetts avg Federal benchmark
Total violations 40 46.2 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 0 4.6 Indicates a contaminant exceeded a federal MCL
PFAS detection None 54.4% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 36 6,462 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,599 regulated public water systems in Massachusetts.

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 Seaman Cottages LLC water safe to drink? ▼
Seaman Cottages LLC (PWS ID: MA4086048) has 40 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 36 people using Groundwater sources.
How many people does Seaman Cottages LLC serve? ▼
Seaman Cottages LLC serves 36 people in North Eastham, Massachusetts. It is a Private-owned system using Groundwater water sources with 10 service connections.
What type of violations does Seaman Cottages LLC have? ▼
Seaman Cottages LLC has 40 total violations: 0 health-based violations (MCL exceedances or treatment failures), 38 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Seaman Cottages LLC water? ▼
No PFAS testing data is available for Seaman Cottages LLC under the EPA's UCMR5 monitoring program.
What water source does Seaman Cottages LLC use? ▼
Seaman Cottages LLC uses Groundwater as its primary water source. It is classified as a Transient Non-Community Water System, serving transient populations.
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.