Community Water System · PWS NJ1009001
Flemington Water Department
Operator location Flemington, New Jersey - 32% of 846 violations are health-based (upper-third health share (> 23%)); groundwater source; 4,581 served per SDWIS.
- 4,581
- People served (this PWS)
- 846
- EPA violations (this PWS)
- 269
- Health-based (this PWS)
- 6 PFAS
- UCMR5 (this PWS)
Flemington Water Department standing, high SDWIS violation third
32% of 846 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 32% is upper-third health share (> 23%). UCMR5: upper-third PFAS panel (> 4 compounds). Population rank #8,138 of 29,740 among systems serving 500+.
The verdict
Flemington Water Department sits in the upper third of the sitemap cohort by violation count (846), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is large (4,581; larger served population (> 3,309)), so household exposure scale sits behind the violation mix. Health-based share is 32% - most of this ledger is MCL or treatment-technique exceedance. UCMR5 detected 6 PFAS compounds (upper-third PFAS panel (> 4 compounds)).
- #8,138 of 29,740
- Population · /systems
- #228 of 689
- Population · NJ
- 846
- Total EPA violations on record
- 32%
- Health-based (MCL / treatment failure)
Population ordinals match the sitemap cohort (systems serving 500+, population_served DESC). See methodology · corpus placement.
6 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 1,316
- County
- Hunterdon
- School/Daycare
- No
- MCL Violations
- 269
- Monitoring Violations
- 564
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Arsenic | MCL | 240 | 2009 |
| Total Haloacetic Acids (HAA5) | MR | 30 | 2018 |
| TTHM | MR | 27 | 2005 |
| Carbon tetrachloride | MR | 22 | 2021 |
| Vinyl chloride | MR | 22 | 2021 |
| 1,1,1-Trichloroethane | MR | 22 | 2021 |
| Trichloroethylene | MR | 22 | 2021 |
| 1,2-Dichloroethane | MR | 22 | 2021 |
| Benzene | MR | 22 | 2021 |
| p-Dichlorobenzene | MR | 22 | 2021 |
| 1,1-Dichloroethylene | MR | 22 | 2021 |
| Tetrachloroethylene | MR | 21 | 2021 |
| Toluene | MR | 21 | 2021 |
| 1,2,4-Trichlorobenzene | MR | 21 | 2021 |
| Xylenes, Total | MR | 21 | 2021 |
| DICHLOROMETHANE | MR | 21 | 2021 |
| o-Dichlorobenzene | MR | 21 | 2021 |
| 1,2-Dichloropropane | MR | 21 | 2021 |
| 1,1,2-Trichloroethane | MR | 21 | 2021 |
| Ethylbenzene | MR | 21 | 2021 |
| cis-1,2-Dichloroethylene | MR | 21 | 2021 |
| trans-1,2-Dichloroethylene | MR | 21 | 2021 |
| CHLOROBENZENE | MR | 21 | 2021 |
| Styrene | MR | 21 | 2021 |
| Tetrachloroethylene | MCL | 18 | 2008 |
| Arsenic | MR | 9 | 2013 |
| Carbon tetrachloride | MCL | 8 | 1995 |
| Gross Alpha, Excl. Radon and U | MR | 8 | 2017 |
| Combined Uranium | MR | 8 | 2017 |
| Radium-226 | MR | 8 | 2017 |
Violation Count vs. the National Corpus
Flemington Water Department has 846 recorded EPA violations, 99% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 1% carry more. 32% of this system's own violations are health-based (269 of 846), and it ranks #8,138 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)
846 Higher than most more violations than 99% 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. 26 of 232 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| PFMPA | 5/20/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFPeA | 5/20/2024 | 4.00 ppt | 3.00 ppt | Detected |
| PFMBA | 5/20/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFEESA | 5/20/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| NFDHA | 5/20/2024 | <20.00 ppt | 20.00 ppt | Not Detected |
| PFTA | 5/20/2024 | <8.00 ppt | 8.00 ppt | Not Detected |
| PFHpA | 5/20/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| NEtFOSAA | 5/20/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFHpS | 5/20/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| NMeFOSAA | 5/20/2024 | <6.00 ppt | 6.00 ppt | Not Detected |
| PFTrDA | 5/20/2024 | <7.00 ppt | 7.00 ppt | Not Detected |
| PFDoA | 5/20/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| 8:2 FTS | 5/20/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFBS | 5/20/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHxS | 5/20/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFNA | 5/20/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFOS | 5/20/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFDA | 5/20/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHxA | 5/20/2024 | 3.00 ppt | 3.00 ppt | Detected |
| PFUnA | 5/20/2024 | <2.00 ppt | 2.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 5/20/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| 9Cl-PF3ONS | 5/20/2024 | <2.00 ppt | 2.00 ppt | Not Detected |
| 6:2 FTS | 5/20/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFPeS | 5/20/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFOA | 5/20/2024 | 5.10 ppt | 4.00 ppt | Detected |
| 4:2 FTS | 5/20/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFBA | 5/20/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| HFPO-DA | 5/20/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| ADONA | 5/20/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFBS | 5/20/2024 | 4.20 ppt | 3.00 ppt | Detected |
| PFUnA | 5/20/2024 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFHxA | 5/20/2024 | 3.60 ppt | 3.00 ppt | Detected |
| PFDoA | 5/20/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDA | 5/20/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFOA | 5/20/2024 | 7.80 ppt | 4.00 ppt | Detected |
| PFOS | 5/20/2024 | 7.80 ppt | 4.00 ppt | Detected |
| PFNA | 5/20/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFTrDA | 5/20/2024 | <7.00 ppt | 7.00 ppt | Not Detected |
| PFHpA | 5/20/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| NMeFOSAA | 5/20/2024 | <6.00 ppt | 6.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 5/20/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFMPA | 5/20/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFHxS | 5/20/2024 | 3.10 ppt | 3.00 ppt | Detected |
| 9Cl-PF3ONS | 5/20/2024 | <2.00 ppt | 2.00 ppt | Not Detected |
| ADONA | 5/20/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| HFPO-DA | 5/20/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFBA | 5/20/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| 6:2 FTS | 5/20/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| 8:2 FTS | 5/20/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFTA | 5/20/2024 | <8.00 ppt | 8.00 ppt | Not Detected |
Health-based violations on Flemington Water Department
269 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for NJ1009001.
Sources: EPA SDWIS · NJ DEP, Bureau of Safe Drinking Water
Nationwide peers
846 violations · 4,581 served: nearest cross-state SDWIS matches.
Cross-state systems with comparable violation load
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 Flemington Water Department
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in New Jersey compares on the same EPA violation measures. New Jersey 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.