Community Water System · PWS NJ2013001
Rahway Water Department
Operator location Rahway, New Jersey - 55% of 65 violations are health-based (upper-third health share (> 23%)); surface water source; 27,300 served per SDWIS.
- 27,300
- People served (this PWS)
- 65
- EPA violations (this PWS)
- 36
- Health-based (this PWS)
- 4 PFAS
- UCMR5 (this PWS)
Rahway Water Department standing, mid SDWIS violation third
55% of 65 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 55% is upper-third health share (> 23%). UCMR5: middle-third PFAS panel (≤ 4 compounds). Population rank #2,034 of 29,740 among systems serving 500+.
The verdict
Rahway Water Department lands in the middle third by violation volume (65), large enough for peer comparisons without matching the fleet's heaviest ledgers. Population served is large (27,300; larger served population (> 3,309)), so household exposure scale sits behind the violation mix. Health-based share is 55% - most of this ledger is MCL or treatment-technique exceedance. UCMR5 detected 4 PFAS compounds (middle-third PFAS panel (≤ 4 compounds)).
- #2,034 of 29,740
- Population · /systems
- #68 of 689
- Population · NJ
- 65
- Total EPA violations on record
- 55%
- 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
- 8,300
- County
- Union
- School/Daycare
- No
- MCL Violations
- 24
- Monitoring Violations
- 22
- Treatment Tech Violations
- 12
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Trichloroethylene | MCL | 13 | 1992 |
| Interim Enhanced Surface Water Treatment Rule | TT | 12 | 2013 |
| Tetrachloroethylene | MCL | 10 | 1992 |
| TTHM | MR | 7 | 2018 |
| Total Haloacetic Acids (HAA5) | MR | 7 | 2018 |
| Coliform (TCR) | MR | 2 | 2002 |
| Nitrate | MR | 2 | 2002 |
| Cryptosporidium | MR | 2 | 2015 |
| Lead and Copper Rule | MR | 2 | 2019 |
| Consumer Confidence Rule | Other | 2 | 2021 |
| Coliform (TCR) | MCL | 1 | 2008 |
Violation Count vs. the National Corpus
Rahway Water Department has 65 recorded EPA violations, 63% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 36% carry more. 55% of this system's own violations are health-based (36 of 65), and it ranks #2,034 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)
65 Around the middle fewer violations than 36% 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. 4 of 116 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| PFEESA | 6/20/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFTrDA | 6/20/2023 | <7.00 ppt | 7.00 ppt | Not Detected |
| 6:2 FTS | 6/20/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| NMeFOSAA | 6/20/2023 | <6.00 ppt | 6.00 ppt | Not Detected |
| NEtFOSAA | 6/20/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFTA | 6/20/2023 | <8.00 ppt | 8.00 ppt | Not Detected |
| PFHpS | 6/20/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| NFDHA | 6/20/2023 | <20.00 ppt | 20.00 ppt | Not Detected |
| PFMBA | 6/20/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeA | 6/20/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| 8:2 FTS | 6/20/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| HFPO-DA | 6/20/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFMPA | 6/20/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| 4:2 FTS | 6/20/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeS | 6/20/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFOS | 6/20/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFBA | 6/20/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| ADONA | 6/20/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFBS | 6/20/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHpA | 6/20/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFNA | 6/20/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFOA | 6/20/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFDA | 6/20/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDoA | 6/20/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHxA | 6/20/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFUnA | 6/20/2023 | <2.00 ppt | 2.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 6/20/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| 9Cl-PF3ONS | 6/20/2023 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFHxS | 6/20/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFBS | 5/15/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFEESA | 5/15/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHpS | 5/15/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeS | 5/15/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| NFDHA | 5/15/2023 | <20.00 ppt | 20.00 ppt | Not Detected |
| PFDA | 5/15/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHpA | 5/15/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFNA | 5/15/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFOA | 5/15/2023 | 6.90 ppt | 4.00 ppt | Detected |
| PFDoA | 5/15/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHxA | 5/15/2023 | 4.10 ppt | 3.00 ppt | Detected |
| PFUnA | 5/15/2023 | <2.00 ppt | 2.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 5/15/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| 9Cl-PF3ONS | 5/15/2023 | <2.00 ppt | 2.00 ppt | Not Detected |
| 8:2 FTS | 5/15/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFOS | 5/15/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| ADONA | 5/15/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHxS | 5/15/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMPA | 5/15/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFPeA | 5/15/2023 | 5.40 ppt | 3.00 ppt | Detected |
| 4:2 FTS | 5/15/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
Health-based violations on Rahway Water Department
36 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for NJ2013001.
Sources: EPA SDWIS · NJ DEP, Bureau of Safe Drinking Water
Nationwide peers
65 violations · 27,300 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 Rahway 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.