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Community Water System · PWS MA1074001

South Deerfield Water Supply District

South Deerfield, Massachusetts 01373 - drinking water served from surface water sources to 3,800 people, tracked in EPA SDWIS and UCMR5.

3,800
People served
96
EPA violations
15
Health-based
No PFAS
UCMR5 result

The verdict

EPA records 96 drinking-water violations at South Deerfield Water Supply District, 16% of them health-based - above the Massachusetts per-system average.

96
Total EPA violations on record
16%
Health-based (MCL / treatment failure)
3,800
People served by this system
0
PFAS compounds detected (UCMR5)

Water Quality Snapshot: South Deerfield Water Supply District

South Deerfield Water Supply District is a local-owned community water system that delivers drinking water to 3,800 residents in South Deerfield, Massachusetts (Franklin County) through 1,570 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 96 total violations for this system , of which 15 (16%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 46 monitoring and reporting violations are on file. The most recent violation on record dates to 2018.

The most frequently cited contaminant at this system is Stage 1 Disinfectants and Disinfection Byproducts Rule, recorded in 4 violations (TT, health-based). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.

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, 148 of 263 UCMR5-tested systems have reported PFAS detections (56.3%).

South Deerfield Water Supply District's 96 violations sit above 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
3,800
Total Violations
96
Health-Based Violations
15
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
1,570
County
Franklin
School/Daycare
No
MCL Violations
3
Monitoring Violations
46
Treatment Tech Violations
12

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Stage 1 Disinfectants and Disinfection Byproducts Rule TT 4 2016
Interim Enhanced Surface Water Treatment Rule TT 4 2018
Coliform (TCR) MCL 3 2012
Benzene MR 2 2011
trans-1,2-Dichloroethylene MR 2 2011
Styrene MR 2 2011
Tetrachloroethylene MR 2 2011
Toluene MR 2 2011
Carbon tetrachloride MR 2 2011
1,1,2-Trichloroethane MR 2 2011
Public Notice Other 2 2018
Trichloroethylene MR 2 2011
1,1,1-Trichloroethane MR 2 2011
Vinyl chloride MR 2 2011
o-Dichlorobenzene MR 2 2011
1,2-Dichloroethane MR 2 2011
1,2-Dichloropropane MR 2 2011
Surface Water Treatment Rule TT 2 1992
Ethylbenzene MR 2 2011
p-Dichlorobenzene MR 2 2011
Xylenes, Total MR 2 2011
Consumer Confidence Rule Other 2 2013
Lead and Copper Rule TT 2 1996
DICHLOROMETHANE MR 2 2011
Interim Enhanced Surface Water Treatment Rule Other 2 2018
cis-1,2-Dichloroethylene MR 2 2011
1,1-Dichloroethylene MR 2 2011
1,2,4-Trichlorobenzene MR 2 2011
CHLOROBENZENE MR 2 2011
Nitrate MR 1 2005

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 116 samples detected PFAS.

Contaminant Date Result MRL Status
PFPeS 9/20/2023 <4.00 ppt 4.00 ppt Not Detected
9Cl-PF3ONS 9/20/2023 <2.00 ppt 2.00 ppt Not Detected
NMeFOSAA 9/20/2023 <6.00 ppt 6.00 ppt Not Detected
NEtFOSAA 9/20/2023 <5.00 ppt 5.00 ppt Not Detected
PFTrDA 9/20/2023 <7.00 ppt 7.00 ppt Not Detected
PFTA 9/20/2023 <8.00 ppt 8.00 ppt Not Detected
PFHpS 9/20/2023 <3.00 ppt 3.00 ppt Not Detected
PFHxA 9/20/2023 <3.00 ppt 3.00 ppt Not Detected
PFBS 9/20/2023 <3.00 ppt 3.00 ppt Not Detected
PFHpA 9/20/2023 <3.00 ppt 3.00 ppt Not Detected
PFHxS 9/20/2023 <3.00 ppt 3.00 ppt Not Detected
PFNA 9/20/2023 <4.00 ppt 4.00 ppt Not Detected
PFOS 9/20/2023 <4.00 ppt 4.00 ppt Not Detected
PFOA 9/20/2023 <4.00 ppt 4.00 ppt Not Detected
HFPO-DA 9/20/2023 <5.00 ppt 5.00 ppt Not Detected
PFDoA 9/20/2023 <3.00 ppt 3.00 ppt Not Detected
NFDHA 9/20/2023 <20.00 ppt 20.00 ppt Not Detected
PFUnA 9/20/2023 <2.00 ppt 2.00 ppt Not Detected
PFMPA 9/20/2023 <4.00 ppt 4.00 ppt Not Detected
PFEESA 9/20/2023 <3.00 ppt 3.00 ppt Not Detected
PFDA 9/20/2023 <3.00 ppt 3.00 ppt Not Detected
PFPeA 9/20/2023 <3.00 ppt 3.00 ppt Not Detected
11Cl-PF3OUdS 9/20/2023 <5.00 ppt 5.00 ppt Not Detected
8:2 FTS 9/20/2023 <5.00 ppt 5.00 ppt Not Detected
4:2 FTS 9/20/2023 <3.00 ppt 3.00 ppt Not Detected
6:2 FTS 9/20/2023 <5.00 ppt 5.00 ppt Not Detected
PFBA 9/20/2023 <5.00 ppt 5.00 ppt Not Detected
ADONA 9/20/2023 <3.00 ppt 3.00 ppt Not Detected
PFMBA 9/20/2023 <3.00 ppt 3.00 ppt Not Detected
NFDHA 6/6/2023 <20.00 ppt 20.00 ppt Not Detected
PFPeS 6/6/2023 <4.00 ppt 4.00 ppt Not Detected
PFEESA 6/6/2023 <3.00 ppt 3.00 ppt Not Detected
PFMBA 6/6/2023 <3.00 ppt 3.00 ppt Not Detected
PFPeA 6/6/2023 <3.00 ppt 3.00 ppt Not Detected
PFMPA 6/6/2023 <4.00 ppt 4.00 ppt Not Detected
8:2 FTS 6/6/2023 <5.00 ppt 5.00 ppt Not Detected
PFHpS 6/6/2023 <3.00 ppt 3.00 ppt Not Detected
11Cl-PF3OUdS 6/6/2023 <5.00 ppt 5.00 ppt Not Detected
6:2 FTS 6/6/2023 <5.00 ppt 5.00 ppt Not Detected
PFBA 6/6/2023 <5.00 ppt 5.00 ppt Not Detected
HFPO-DA 6/6/2023 <5.00 ppt 5.00 ppt Not Detected
ADONA 6/6/2023 <3.00 ppt 3.00 ppt Not Detected
9Cl-PF3ONS 6/6/2023 <2.00 ppt 2.00 ppt Not Detected
PFTA 6/6/2023 <8.00 ppt 8.00 ppt Not Detected
PFTrDA 6/6/2023 <7.00 ppt 7.00 ppt Not Detected
PFBS 6/6/2023 <3.00 ppt 3.00 ppt Not Detected
NMeFOSAA 6/6/2023 <6.00 ppt 6.00 ppt Not Detected
PFNA 6/6/2023 <4.00 ppt 4.00 ppt Not Detected
4:2 FTS 6/6/2023 <3.00 ppt 3.00 ppt Not Detected
PFHpA 6/6/2023 <3.00 ppt 3.00 ppt Not Detected

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 South Deerfield Water Supply District.

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 MA1074001 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 South Deerfield Water Supply District 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
2018 Interim Enhanced Surface Water Treatment Rule TT 4 SDWIS / MA1074001 / 0300
2018 Public Notice Other 2 SDWIS / MA1074001 / 7500
2018 Interim Enhanced Surface Water Treatment Rule Other 2 SDWIS / MA1074001 / 0300
2016 Stage 1 Disinfectants and Disinfection Byproducts Rule TT 4 SDWIS / MA1074001 / 0400
2013 Consumer Confidence Rule Other 2 SDWIS / MA1074001 / 7000
2012 Coliform (TCR) MCL 3 SDWIS / MA1074001 / 3100
2011 Benzene MR 2 SDWIS / MA1074001 / 2990
2011 trans-1,2-Dichloroethylene MR 2 SDWIS / MA1074001 / 2979
2011 Styrene MR 2 SDWIS / MA1074001 / 2996
2011 Tetrachloroethylene MR 2 SDWIS / MA1074001 / 2987
2011 Toluene MR 2 SDWIS / MA1074001 / 2991
2011 Carbon tetrachloride MR 2 SDWIS / MA1074001 / 2982
2011 1,1,2-Trichloroethane MR 2 SDWIS / MA1074001 / 2985
2011 Trichloroethylene MR 2 SDWIS / MA1074001 / 2984
2011 1,1,1-Trichloroethane MR 2 SDWIS / MA1074001 / 2981

How South Deerfield Water Supply District Compares

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

Metric South Deerfield Water Supply District Massachusetts avg Federal benchmark
Total violations 96 46.2 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 15 4.6 Indicates a contaminant exceeded a federal MCL
PFAS detection None 56.3% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 3,800 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 South Deerfield Water Supply District water safe to drink? ▼
South Deerfield Water Supply District (PWS ID: MA1074001) has 96 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 3,800 people using Surface Water sources.
How many people does South Deerfield Water Supply District serve? ▼
South Deerfield Water Supply District serves 3,800 people in South Deerfield, Massachusetts. It is a Local-owned system using Surface Water water sources with 1,570 service connections.
What type of violations does South Deerfield Water Supply District have? ▼
South Deerfield Water Supply District has 96 total violations: 15 health-based violations (MCL exceedances or treatment failures), 46 monitoring/reporting violations, and 12 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in South Deerfield Water Supply District water? ▼
No. South Deerfield Water Supply District was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does South Deerfield Water Supply District use? ▼
South Deerfield Water Supply District 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. PFAS data from EPA UCMR5 monitoring program (2023-2025). 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.