Community Water System · PWS MA1127000
Hatfield Water Dept
Operator location Hatfield, Massachusetts - 8% of 71 violations are health-based (middle-third health share (≤ 23%)); surface water source; 3,183 served per SDWIS.
- 3,183
- People served (this PWS)
- 71
- EPA violations (this PWS)
- 6
- Health-based (this PWS)
- 4 PFAS
- UCMR5 (this PWS)
Hatfield Water Dept standing, mid SDWIS violation third
8% of 71 recorded violations are health-based - middle-third health share (≤ 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 8% is middle-third health share (≤ 23%). UCMR5: middle-third PFAS panel (≤ 4 compounds). Population rank #10,208 of 29,740 among systems serving 500+.
The verdict
Hatfield Water Dept lands in the middle third by violation volume (71), large enough for peer comparisons without matching the fleet's heaviest ledgers. Population served is mid-pack at 3,183 (mid served population (≤ 3,309)). Health-based share is 8% (middle-third health share (≤ 23%)). UCMR5 detected 4 PFAS compounds (middle-third PFAS panel (≤ 4 compounds)).
- #10,208 of 29,740
- Population · /systems
- #267 of 418
- Population · MA
- 71
- Total EPA violations on record
- 8%
- Health-based (MCL / treatment failure)
Population ordinals match the sitemap cohort (systems serving 500+, population_served DESC). See methodology · corpus placement.
4 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 1,346
- County
- Hampshire
- School/Daycare
- No
- MCL Violations
- 1
- Monitoring Violations
- 60
- Treatment Tech Violations
- 5
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Arsenic | MR | 5 | 2013 |
| Surface Water Treatment Rule | TT | 5 | 2013 |
| Fluoride | MR | 4 | 2013 |
| Selenium | MR | 4 | 2013 |
| Chromium | MR | 4 | 2013 |
| Antimony, Total | MR | 4 | 2013 |
| Beryllium, Total | MR | 4 | 2013 |
| Thallium, Total | MR | 4 | 2013 |
| CYANIDE | MR | 4 | 2013 |
| Barium | MR | 4 | 2013 |
| Cadmium | MR | 4 | 2013 |
| Nickel | MR | 4 | 2013 |
| Lead and Copper Rule | MR | 4 | 2015 |
| Mercury | MR | 4 | 2013 |
| Surface Water Treatment Rule | MR | 3 | 2013 |
| TTHM | MR | 2 | 2011 |
| Total Haloacetic Acids (HAA5) | MR | 2 | 2011 |
| Coliform (TCR) | MCL | 1 | 1993 |
Violation Count vs. the National Corpus
Hatfield Water Dept has 71 recorded EPA violations, 65% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 34% carry more. 8% of this system's own violations are health-based (6 of 71), and it ranks #10,208 of 29,740 by population served among that same cohort.
EPA violations vs. the national water-system corpus
Public water systems serving 500+ people (EPA SDWIS)
71 Around the middle fewer violations than 34% of 29,740 water systems
the national water-system corpus, bucketed by value
Each bar is a band; taller bars hold more water systems. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source EPA SDWIS · 2026-05-15
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 15 of 232 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| PFMPA | 8/5/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFOS | 8/5/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFOA | 8/5/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 8/5/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| ADONA | 8/5/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| HFPO-DA | 8/5/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFBA | 8/5/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| 6:2 FTS | 8/5/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFNA | 8/5/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| 8:2 FTS | 8/5/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFUnA | 8/5/2024 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFPeA | 8/5/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMBA | 8/5/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFEESA | 8/5/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| NFDHA | 8/5/2024 | <20.00 ppt | 20.00 ppt | Not Detected |
| PFPeS | 8/5/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFHpS | 8/5/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| 4:2 FTS | 8/5/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFTrDA | 8/5/2024 | <7.00 ppt | 7.00 ppt | Not Detected |
| 9Cl-PF3ONS | 8/5/2024 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFHxS | 8/5/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFTA | 8/5/2024 | <8.00 ppt | 8.00 ppt | Not Detected |
| PFDA | 8/5/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDoA | 8/5/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHxA | 8/5/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFBS | 8/5/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHpA | 8/5/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| NMeFOSAA | 8/5/2024 | <6.00 ppt | 6.00 ppt | Not Detected |
| NEtFOSAA | 8/5/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFDoA | 8/5/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFUnA | 8/5/2024 | <2.00 ppt | 2.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 8/5/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| 9Cl-PF3ONS | 8/5/2024 | <2.00 ppt | 2.00 ppt | Not Detected |
| ADONA | 8/5/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| HFPO-DA | 8/5/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFBA | 8/5/2024 | 13.60 ppt | 5.00 ppt | Detected |
| 6:2 FTS | 8/5/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| 4:2 FTS | 8/5/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| 8:2 FTS | 8/5/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFPeA | 8/5/2024 | 58.10 ppt | 3.00 ppt | Detected |
| PFEESA | 8/5/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMBA | 8/5/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeS | 8/5/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFHpS | 8/5/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFTA | 8/5/2024 | <8.00 ppt | 8.00 ppt | Not Detected |
| PFTrDA | 8/5/2024 | <7.00 ppt | 7.00 ppt | Not Detected |
| NEtFOSAA | 8/5/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| NMeFOSAA | 8/5/2024 | <6.00 ppt | 6.00 ppt | Not Detected |
| PFHxA | 8/5/2024 | 60.80 ppt | 3.00 ppt | Detected |
| PFMPA | 8/5/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
Health-based violations on Hatfield Water Dept
6 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for MA1127000.
Sources: EPA SDWIS · MassDEP, Drinking Water Program
Nationwide peers
71 violations · 3,183 served: nearest cross-state SDWIS matches.
Cross-state systems near this violation count
Nearest cross-state community systems (500+ served) by total SDWIS violations on record.
Cross-state systems near this population served
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with Hatfield Water Dept
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in Massachusetts compares on the same EPA violation measures. Massachusetts systems
- Check whether PFAS was detected at this system under UCMR5 testing. PFAS guide
- Find and compare another public water system by name or PWSID. Search systems
EPA SDWIS and UCMR5 figures are informational only, not a substitute for a certified lab test of your own tap water.