Non-Transient Non-Community · PWSID NJ1922300

Walnut Ridge Primary School

Serves 250 peopleGroundwaterOwner: Local GovernmentVernon, New JerseyServes a school or daycare
Nothing open that measures the water, but 2 open testing or paperwork violations.

A missed test is not evidence of bad water. It also is not evidence of good water: for that period nobody checked.

On record since 2017: 30 violations. 2 treatment lapses · 26 missed or late tests · 2 notices or reports. Most recent began 2025-04-01.

None of them is a measurement of contaminated water.

For this year's test results, ask the utility for its annual Consumer Confidence Report. Every community system must publish one.

0Over the limit
2Treatment lapse
26Missed or late test2 open
2Notice or report

More violations on record than 92% of active water systems in New Jersey. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

2005201020152017 · Missed or late test: 12019 · Missed or late test: 62019 · Missed or late test: 62019 · Missed or late test: 62020 · Missed or late test: 132020 · Missed or late test: 132020 · Missed or late test: 132020 · Missed or late test: 132020 · Missed or late test: 132020 · Missed or late test: 132020 · Missed or late test: 1320202021 · Treatment lapse: 12021 · Missed or late test: 12022 · Missed or late test: 22022 · Notice or report: 22024 · Missed or late test: 22025 · Treatment lapse: 12025 · Missed or late test: 12025
One square ≈ 2 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
7% treatment lapse · 287% missed or late test · 267% notice or report · 2

Across New Jersey, 74% of violations are missed or late tests and 2% are water over a limit.

Lead & copper at the tap

Utilities sample taps in homes most likely to have lead pipes, and report the 90th-percentile result: 9 in 10 homes sampled came in at or below this number. Above the red line (the action level) the utility must act. The action level is not a safe level; EPA's health goal for lead is zero. EPA's file does not date these results, so they are shown highest first.

Lead, 90th percentile 13 results on file · action level 15 ppb

89.3 ppb
28.2 ppb
20 ppb
18.8 ppb
15.6 ppb
13.8 ppb
12.9 ppb
8.2 ppb
6.5 ppb
5.5 ppb
4.9 ppb
4.9 ppb
3.5 ppb

Open now (2)

  1. 2025-04-01Lead and Copper RuleLead Consumer NoticeOpen
  2. 2024-09-29Lead and Copper RuleLead Consumer NoticeOpen

Every violation on record

  1. 2025-04-01Lead and Copper RuleLead Consumer NoticeOpen
  2. 2025-01-01Lead and Copper RuleWQP Entry Point/Tap Treatment Technique Non-CompliancePeriod ended · no return to compliance on file
  3. 2024-09-29Lead and Copper RuleLead Consumer NoticeOpen
  4. 2024-07-01Lead and Copper RuleWater Quality Parameter M/RBack in compliance
  5. 2022-09-29Lead and Copper RuleLead Consumer NoticeBack in compliance
  6. 2022-06-04Public NoticePN Violation without NPDWR ViolationBack in compliance
  7. 2022-01-11Revised Total Coliform RuleRPTBack in compliance
  8. 2022-01-01NitrateMonitoring, RegularBack in compliance
  9. 2021-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  10. 2021-01-01Lead and Copper RulePublic EducationBack in compliance
  11. 2020-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  12. 2020-07-01Temperature (Centigrade)Water Quality Parameter M/RBack in compliance
  13. 2020-07-01Alkalinity, TotalWater Quality Parameter M/RBack in compliance
  14. 2020-07-01pHWater Quality Parameter M/RBack in compliance
  15. 2020-07-01Conductivity @ 25 C Umhos/CmWater Quality Parameter M/RBack in compliance
  16. 2020-07-01CalciumWater Quality Parameter M/RBack in compliance
  17. 2020-01-01Ethylene DibromideMonitoring, RegularBack in compliance
  18. 2020-01-011, 2-Dibromo-3-ChloropropaneMonitoring, RegularBack in compliance
  19. 2020-01-01Temperature (Centigrade)Water Quality Parameter M/RBack in compliance
  20. 2020-01-01Alkalinity, TotalWater Quality Parameter M/RBack in compliance
  21. 2020-01-01pHWater Quality Parameter M/RBack in compliance
  22. 2020-01-01Conductivity @ 25 C Umhos/CmWater Quality Parameter M/RBack in compliance
  23. 2020-01-01CalciumWater Quality Parameter M/RBack in compliance
  24. 2019-06-01Temperature (Centigrade)Water Quality Parameter M/RBack in compliance
  25. 2019-06-01Alkalinity, TotalWater Quality Parameter M/RBack in compliance
Show the other 5 entries
  1. 2019-06-01pHWater Quality Parameter M/RBack in compliance
  2. 2019-06-01Conductivity @ 25 C Umhos/CmWater Quality Parameter M/RBack in compliance
  3. 2019-06-01CalciumWater Quality Parameter M/RBack in compliance
  4. 2019-01-01NitrateMonitoring, RegularBack in compliance
  5. 2017-01-01NitrateMonitoring, RegularBack in compliance

System details

Population served250
Service connections1
Water sourceGroundwater
System typeNon-Transient Non-Community
OwnerLocal Government
StatusActive
CityVernon
EPA ZIP on file07462

Areas served

  • Sussex County

Reading this record

Walnut Ridge Primary School is a non-transient non-community that draws from groundwater and serves about 250 people in Vernon, New Jersey. Everything above comes from the EPA's Safe Drinking Water Information System (SDWIS), where states report every violation by every public water system.

Four kinds of violation. Only one is a measurement of the water: over the limit means a test came back above a legal maximum (an MCL). A treatment lapse means a required protective step was not done, such as disinfection, filtration, fixing a defect an inspector found, or filing a lead-pipe inventory. A missed or late test means a required test was skipped or never reported. That is the most common kind, and the most misread: it does not mean the water was bad, and it does not mean the water was fine. Notices and reports covers public notices and the annual Consumer Confidence Report.

Status. “Back in compliance” means the state recorded a return to compliance. “Period ended” means the violation's compliance period is over but no return to compliance was ever filed, which is common in older records. EPA's federal copy lags state records by months, so call the utility for anything current.