Community Water System · PWS NJ1919001
Stanhope W Dept
Operator location Stanhope, New Jersey - 0% of 418 violations are health-based (lower-third health share (≤ 1%)); groundwater source; 3,730 served per SDWIS.
- 3,730
- People served (this PWS)
- 418
- EPA violations (this PWS)
- 0
- Health-based (this PWS)
- 7 PFAS
- UCMR5 (this PWS)
Stanhope W Dept standing, high SDWIS violation third
0% of 418 recorded violations are health-based - lower-third health share (≤ 1%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 0% is lower-third health share (≤ 1%). UCMR5: upper-third PFAS panel (> 4 compounds). Population rank #9,273 of 29,740 among systems serving 500+.
The verdict
Stanhope W Dept sits in the upper third of the sitemap cohort by violation count (418), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is large (3,730; larger served population (> 3,309)), so household exposure scale sits behind the violation mix. Health-based share is only 0% - almost all of this trail is monitoring or reporting. UCMR5 detected 7 PFAS compounds (upper-third PFAS panel (> 4 compounds)).
- #9,273 of 29,740
- Population · /systems
- #243 of 689
- Population · NJ
- 418
- Total EPA violations on record
- 0%
- Health-based (MCL / treatment failure)
Population ordinals match the sitemap cohort (systems serving 500+, population_served DESC). See methodology · corpus placement.
7 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 1,420
- County
- Sussex
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 400
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Nitrate | MR | 18 | 2023 |
| Mercury | MR | 12 | 2020 |
| Antimony, Total | MR | 12 | 2020 |
| Thallium, Total | MR | 12 | 2020 |
| Nickel | MR | 12 | 2020 |
| Selenium | MR | 12 | 2020 |
| Cadmium | MR | 12 | 2020 |
| Chromium | MR | 12 | 2020 |
| Barium | MR | 12 | 2020 |
| Arsenic | MR | 12 | 2020 |
| Beryllium, Total | MR | 12 | 2020 |
| 1,2,4-Trichlorobenzene | MR | 11 | 2021 |
| Xylenes, Total | MR | 11 | 2021 |
| DICHLOROMETHANE | MR | 11 | 2021 |
| Vinyl chloride | MR | 11 | 2021 |
| 1,1-Dichloroethylene | MR | 11 | 2021 |
| trans-1,2-Dichloroethylene | MR | 11 | 2021 |
| 1,2-Dichloroethane | MR | 11 | 2021 |
| 1,1,1-Trichloroethane | MR | 11 | 2021 |
| 1,2-Dichloropropane | MR | 11 | 2021 |
| Trichloroethylene | MR | 11 | 2021 |
| Benzene | MR | 11 | 2021 |
| Ethylbenzene | MR | 11 | 2021 |
| Styrene | MR | 11 | 2021 |
| o-Dichlorobenzene | MR | 11 | 2021 |
| p-Dichlorobenzene | MR | 11 | 2021 |
| Carbon tetrachloride | MR | 11 | 2021 |
| Tetrachloroethylene | MR | 11 | 2021 |
| Toluene | MR | 11 | 2021 |
| 1,1,2-Trichloroethane | MR | 11 | 2021 |
Violation Count vs. the National Corpus
Stanhope W Dept has 418 recorded EPA violations, 94% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 6% carry more. 0% of this system's own violations are health-based (0 of 418), and it ranks #9,273 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)
418 Higher than most more violations than 94% 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. 22 of 174 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| ADONA | 9/18/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFOA | 9/18/2024 | 9.60 ppt | 4.00 ppt | Detected |
| PFOS | 9/18/2024 | 5.20 ppt | 4.00 ppt | Detected |
| PFNA | 9/18/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFHxS | 9/18/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHpA | 9/18/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| HFPO-DA | 9/18/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFHxA | 9/18/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| 9Cl-PF3ONS | 9/18/2024 | <2.00 ppt | 2.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 9/18/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFUnA | 9/18/2024 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFBS | 9/18/2024 | 3.20 ppt | 3.00 ppt | Detected |
| PFBA | 9/18/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFEESA | 9/18/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHpS | 9/18/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeS | 9/18/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFTA | 9/18/2024 | <8.00 ppt | 8.00 ppt | Not Detected |
| PFTrDA | 9/18/2024 | <7.00 ppt | 7.00 ppt | Not Detected |
| NEtFOSAA | 9/18/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFDA | 9/18/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| NFDHA | 9/18/2024 | <20.00 ppt | 20.00 ppt | Not Detected |
| PFDoA | 9/18/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMBA | 9/18/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeA | 9/18/2024 | 3.10 ppt | 3.00 ppt | Detected |
| PFMPA | 9/18/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| 8:2 FTS | 9/18/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| 4:2 FTS | 9/18/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| 6:2 FTS | 9/18/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| NMeFOSAA | 9/18/2024 | <6.00 ppt | 6.00 ppt | Not Detected |
| PFPeA | 9/18/2024 | 4.90 ppt | 3.00 ppt | Detected |
| PFTA | 9/18/2024 | <8.00 ppt | 8.00 ppt | Not Detected |
| HFPO-DA | 9/18/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFBA | 9/18/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| 6:2 FTS | 9/18/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| 4:2 FTS | 9/18/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| 9Cl-PF3ONS | 9/18/2024 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFMPA | 9/18/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 9/18/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFMBA | 9/18/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFEESA | 9/18/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| NFDHA | 9/18/2024 | <20.00 ppt | 20.00 ppt | Not Detected |
| PFPeS | 9/18/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| NMeFOSAA | 9/18/2024 | <6.00 ppt | 6.00 ppt | Not Detected |
| PFHpS | 9/18/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| 8:2 FTS | 9/18/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFNA | 9/18/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| NEtFOSAA | 9/18/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFTrDA | 9/18/2024 | <7.00 ppt | 7.00 ppt | Not Detected |
| PFBS | 9/18/2024 | 3.90 ppt | 3.00 ppt | Detected |
| ADONA | 9/18/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
Health-based violations on Stanhope W Dept
0 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for NJ1919001.
Sources: EPA SDWIS · NJ DEP, Bureau of Safe Drinking Water
Nationwide peers
418 violations · 3,730 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 Stanhope W 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.