Community Water System · PWS NJ0613004
Upper Deerfield Twp Water Dept
Operator location Seabrook, New Jersey - 41% of 207 violations are health-based (upper-third health share (> 23%)); groundwater source; 3,100 served per SDWIS.
- 3,100
- People served (this PWS)
- 207
- EPA violations (this PWS)
- 85
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Upper Deerfield Twp Water Dept standing, high SDWIS violation third
41% of 207 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 41% is upper-third health share (> 23%). Population rank #10,372 of 29,740 among systems serving 500+.
The verdict
Upper Deerfield Twp Water Dept sits in the upper third of the sitemap cohort by violation count (207), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is mid-pack at 3,100 (mid served population (≤ 3,309)). Health-based share is 41% - most of this ledger is MCL or treatment-technique exceedance. No UCMR5 PFAS test appears for this system in this extract.
- #10,372 of 29,740
- Population · /systems
- #258 of 689
- Population · NJ
- 207
- Total EPA violations on record
- 41%
- Health-based (MCL / treatment failure)
Population ordinals match the sitemap cohort (systems serving 500+, population_served DESC). See methodology · corpus placement.
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 1,017
- County
- Cumberland
- School/Daycare
- No
- MCL Violations
- 85
- Monitoring Violations
- 116
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Combined Radium (-226 and -228) | MCL | 41 | 2010 |
| Nitrate | MCL | 24 | 2019 |
| Gross Alpha, Excl. Radon and U | MCL | 20 | 2010 |
| Nitrate | MR | 11 | 2024 |
| Groundwater Rule | MR | 11 | 2022 |
| Combined Uranium | MR | 10 | 2020 |
| Combined Radium (-226 and -228) | MR | 8 | 2024 |
| Gross Alpha, Excl. Radon and U | MR | 6 | 2020 |
| Revised Total Coliform Rule | MON | 6 | 2021 |
| Radium-228 | MR | 6 | 2024 |
| Radium-226 | MR | 6 | 2024 |
| Revised Total Coliform Rule | RPT | 4 | 2021 |
| ETHYLENE DIBROMIDE | MR | 3 | 2025 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 3 | 2025 |
| 1,2,4-Trichlorobenzene | MR | 2 | 2013 |
| cis-1,2-Dichloroethylene | MR | 2 | 2013 |
| Xylenes, Total | MR | 2 | 2013 |
| DICHLOROMETHANE | MR | 2 | 2013 |
| o-Dichlorobenzene | MR | 2 | 2013 |
| p-Dichlorobenzene | MR | 2 | 2013 |
| Vinyl chloride | MR | 2 | 2013 |
| trans-1,2-Dichloroethylene | MR | 2 | 2013 |
| 1,1,1-Trichloroethane | MR | 2 | 2013 |
| 1,2-Dichloropropane | MR | 2 | 2013 |
| Trichloroethylene | MR | 2 | 2013 |
| 1,1,2-Trichloroethane | MR | 2 | 2013 |
| Tetrachloroethylene | MR | 2 | 2013 |
| Benzene | MR | 2 | 2013 |
| Toluene | MR | 2 | 2013 |
| Styrene | MR | 2 | 2013 |
Violation Count vs. the National Corpus
Upper Deerfield Twp Water Dept has 207 recorded EPA violations, 86% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 14% carry more. 41% of this system's own violations are health-based (85 of 207), and it ranks #10,372 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)
207 Higher than most more violations than 86% 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
Health-based violations on Upper Deerfield Twp Water Dept
85 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for NJ0613004.
Sources: EPA SDWIS · NJ DEP, Bureau of Safe Drinking Water
Nationwide peers
207 violations · 3,100 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 near this population served
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with Upper Deerfield Twp Water Dept
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.