Transient Non-Community Water System · PWS NJ1006353
Grayrock Village
Operator location New York, New Jersey - 41% of 56 violations are health-based (upper-third health share (> 23%)); groundwater source; 566 served per SDWIS.
- 566
- People served (this PWS)
- 56
- EPA violations (this PWS)
- 23
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Grayrock Village standing, mid SDWIS violation third
41% of 56 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 #27,130 of 29,740 among systems serving 500+.
The verdict
Grayrock Village lands in the middle third by violation volume (56), large enough for peer comparisons without matching the fleet's heaviest ledgers. Population served is smaller (566; smaller served population (≤ 999)), so each violation row represents a compact service footprint. 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.
- #27,130 of 29,740
- Population · /systems
- #596 of 689
- Population · NJ
- 56
- 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
- Transient Non-Community
- Owner Type
- Private
- Connections
- 1
- County
- Hunterdon
- School/Daycare
- No
- MCL Violations
- 7
- Monitoring Violations
- 33
- Treatment Tech Violations
- 16
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Revised Total Coliform Rule | TT | 16 | 2022 |
| Coliform (TCR) | MR | 10 | 2009 |
| Coliform (TCR) | MCL | 7 | 2011 |
| Nitrate | MR | 2 | 2001 |
| Arsenic | MR | 1 | 1993 |
| Barium | MR | 1 | 1993 |
| CYANIDE | MR | 1 | 1993 |
| Fluoride | MR | 1 | 1993 |
| Antimony, Total | MR | 1 | 1993 |
| Thallium, Total | MR | 1 | 1993 |
| Selenium | MR | 1 | 1993 |
| Carbon tetrachloride | MR | 1 | 1990 |
| Trichloroethylene | MR | 1 | 1990 |
| Benzene | MR | 1 | 1990 |
| 1,1,1-Trichloroethane | MR | 1 | 1990 |
| Mercury | MR | 1 | 1993 |
| Cadmium | MR | 1 | 1993 |
| 1,1-Dichloroethylene | MR | 1 | 1990 |
| 1,2-Dichloroethane | MR | 1 | 1990 |
| Beryllium, Total | MR | 1 | 1993 |
| Chromium | MR | 1 | 1993 |
| Nickel | MR | 1 | 1993 |
| Lead and Copper Rule | MR | 1 | 1994 |
| Vinyl chloride | MR | 1 | 1990 |
| p-Dichlorobenzene | MR | 1 | 1990 |
Violation Count vs. the National Corpus
Grayrock Village has 56 recorded EPA violations, 60% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 40% carry more. 41% of this system's own violations are health-based (23 of 56), and it ranks #27,130 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)
56 Around the middle fewer violations than 40% 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 Grayrock Village
23 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for NJ1006353.
Sources: EPA SDWIS · NJ DEP, Bureau of Safe Drinking Water
Nationwide peers
56 violations · 566 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 smaller service footprints
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with Grayrock Village
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.