Community Water System · PWS MA3298000
Topsfield Water Department
Operator location Topsfield, Massachusetts - UCMR5 detected 5 PFAS compounds (upper-third PFAS panel (> 4 compounds)) on this PWS; SDWIS lists 72 violations and 5,435 people served.
- 5,435
- People served (this PWS)
- 72
- EPA violations (this PWS)
- 10
- Health-based (this PWS)
- 5 PFAS
- UCMR5 (this PWS)
Topsfield Water Department standing, mid SDWIS violation third
UCMR5 detected 5 PFAS compounds - upper-third PFAS panel (> 4 compounds). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 14% is middle-third health share (≤ 23%). UCMR5: upper-third PFAS panel (> 4 compounds). Population rank #7,327 of 29,740 among systems serving 500+.
The verdict
Topsfield Water Department lands in the middle third by violation volume (72), large enough for peer comparisons without matching the fleet's heaviest ledgers. Population served is large (5,435; larger served population (> 3,309)), so household exposure scale sits behind the violation mix. Health-based share is 14% (middle-third health share (≤ 23%)). UCMR5 detected 5 PFAS compounds (upper-third PFAS panel (> 4 compounds)).
- #7,327 of 29,740
- Population · /systems
- #230 of 418
- Population · MA
- 72
- Total EPA violations on record
- 14%
- Health-based (MCL / treatment failure)
Population ordinals match the sitemap cohort (systems serving 500+, population_served DESC). See methodology · corpus placement.
5 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 1,862
- County
- Essex
- School/Daycare
- No
- MCL Violations
- 6
- Monitoring Violations
- 43
- Treatment Tech Violations
- 4
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 6 | 2008 |
| Lead and Copper Rule | MR | 4 | 2021 |
| Lead and Copper Rule | TT | 4 | 1994 |
| Nitrate | MR | 2 | 2011 |
| Nitrite | MR | 2 | 2013 |
| Revised Total Coliform Rule | MON | 1 | 2018 |
| ENTEROCOCCI | MR | 1 | 2019 |
| Endrin | MR | 1 | 1998 |
| BHC-GAMMA | MR | 1 | 1998 |
| Methoxychlor | MR | 1 | 1998 |
| Toxaphene | MR | 1 | 1998 |
| Diquat | MR | 1 | 1998 |
| Simazine | MR | 1 | 1998 |
| Endothall | MR | 1 | 1998 |
| Di(2-ethylhexyl) adipate | MR | 1 | 1998 |
| Di(2-ethylhexyl) phthalate | MR | 1 | 1998 |
| Picloram | MR | 1 | 1998 |
| Dinoseb | MR | 1 | 1998 |
| Aldicarb sulfoxide | MR | 1 | 1998 |
| Carbofuran | MR | 1 | 1998 |
| Aldicarb | MR | 1 | 1998 |
| Atrazine | MR | 1 | 1998 |
| LASSO | MR | 1 | 1998 |
| Heptachlor | MR | 1 | 1998 |
| Heptachlor epoxide | MR | 1 | 1998 |
| 2,4-D | MR | 1 | 1998 |
| Pentachlorophenol | MR | 1 | 1998 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 1 | 1998 |
| ETHYLENE DIBROMIDE | MR | 1 | 1998 |
| Chlordane | MR | 1 | 1998 |
Violation Count vs. the National Corpus
Topsfield Water Department has 72 recorded EPA violations, 66% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 34% carry more. 14% of this system's own violations are health-based (10 of 72), and it ranks #7,327 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)
72 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. 10 of 58 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| PFMPA | 7/22/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFPeS | 7/22/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFPeA | 7/22/2025 | 3.10 ppt | 3.00 ppt | Detected |
| PFMBA | 7/22/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFEESA | 7/22/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| NFDHA | 7/22/2025 | <20.00 ppt | 20.00 ppt | Not Detected |
| PFHpS | 7/22/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFTA | 7/22/2025 | <8.00 ppt | 8.00 ppt | Not Detected |
| PFTrDA | 7/22/2025 | <7.00 ppt | 7.00 ppt | Not Detected |
| NMeFOSAA | 7/22/2025 | <6.00 ppt | 6.00 ppt | Not Detected |
| 6:2 FTS | 7/22/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFBS | 7/22/2025 | 3.80 ppt | 3.00 ppt | Detected |
| NEtFOSAA | 7/22/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFHxA | 7/22/2025 | 3.40 ppt | 3.00 ppt | Detected |
| PFHpA | 7/22/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHxS | 7/22/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFNA | 7/22/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFOS | 7/22/2025 | 5.30 ppt | 4.00 ppt | Detected |
| PFOA | 7/22/2025 | 8.60 ppt | 4.00 ppt | Detected |
| 8:2 FTS | 7/22/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFDoA | 7/22/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFUnA | 7/22/2025 | <2.00 ppt | 2.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 7/22/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| 9Cl-PF3ONS | 7/22/2025 | <2.00 ppt | 2.00 ppt | Not Detected |
| ADONA | 7/22/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| HFPO-DA | 7/22/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFBA | 7/22/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| 4:2 FTS | 7/22/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDA | 7/22/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHxS | 1/15/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| 4:2 FTS | 1/15/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| 6:2 FTS | 1/15/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFBA | 1/15/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| HFPO-DA | 1/15/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| ADONA | 1/15/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| 9Cl-PF3ONS | 1/15/2025 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFUnA | 1/15/2025 | <2.00 ppt | 2.00 ppt | Not Detected |
| NFDHA | 1/15/2025 | <20.00 ppt | 20.00 ppt | Not Detected |
| PFOS | 1/15/2025 | 5.40 ppt | 4.00 ppt | Detected |
| PFHpA | 1/15/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFNA | 1/15/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFDoA | 1/15/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDA | 1/15/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFOA | 1/15/2025 | 9.00 ppt | 4.00 ppt | Detected |
| 8:2 FTS | 1/15/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFHxA | 1/15/2025 | 3.10 ppt | 3.00 ppt | Detected |
| PFBS | 1/15/2025 | 4.00 ppt | 3.00 ppt | Detected |
| NMeFOSAA | 1/15/2025 | <6.00 ppt | 6.00 ppt | Not Detected |
| PFTrDA | 1/15/2025 | <7.00 ppt | 7.00 ppt | Not Detected |
| NEtFOSAA | 1/15/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
UCMR5 PFAS record for Topsfield Water Department
Open EPA SDWIS federal reports for PWS MA3298000 to cross-check UCMR5 detections and violation codes; state primacy agencies enforce the Safe Drinking Water Act locally.
Sources: EPA SDWIS · MassDEP, Drinking Water Program
Nationwide peers
72 violations · 5,435 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 with similar served population
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with Topsfield Water Department
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.