Community Water System · PWSID NJ1431001

Pequannock Twp Water Department

Serves 14,010 peopleSurface Water PurchasedOwner: Local GovernmentPompton Plains, New Jersey
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 2004: 43 violations. 3 over the limit · 37 missed or late tests · 3 notices or reports. Most recent began 2025-07-01.

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

3Over the limit
0Treatment lapse
37Missed or late test2 open
3Notice or report

More violations on record than 94% 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

2004 · Missed or late test: 1200520102012 · Missed or late test: 22012 · Missed or late test: 22013 · Notice or report: 12014 · Missed or late test: 112014 · Missed or late test: 112014 · Missed or late test: 112014 · Missed or late test: 112014 · Missed or late test: 112014 · Missed or late test: 112014 · Missed or late test: 112014 · Missed or late test: 112014 · Missed or late test: 112014 · Missed or late test: 112014 · Missed or late test: 1120152016 · Missed or late test: 32016 · Missed or late test: 32016 · Missed or late test: 32017 · Missed or late test: 12018 · Over the limit: 12018 · Missed or late test: 12019 · Over the limit: 22019 · Over the limit: 22019 · Missed or late test: 72019 · Missed or late test: 72019 · Missed or late test: 72019 · Missed or late test: 72019 · Missed or late test: 72019 · Missed or late test: 72019 · Missed or late test: 72019 · Notice or report: 12020 · Missed or late test: 22020 · Missed or late test: 220202021 · Missed or late test: 22021 · Missed or late test: 22022 · Missed or late test: 32022 · Missed or late test: 32022 · Missed or late test: 32023 · Missed or late test: 22023 · Missed or late test: 22024 · Missed or late test: 22024 · Missed or late test: 22025 · Notice or report: 12025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
7% over the limit · 386% missed or late test · 377% notice or report · 3

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

How far over the limit

at the limit2×5×10×100×+Total Haloacetic Acids (HAA5)Trihalomethanes (TTHM)2019-01-01 · Total Haloacetic Acids (HAA5): measured 0.0640 MG/L vs limit 0.0600 MG/L (1.1×)2019-01-01 · Trihalomethanes (TTHM): measured 0.0830 MG/L vs limit 0.0800 MG/L (1.0×)2018-10-01 · Trihalomethanes (TTHM): measured 0.0870 MG/L vs limit 0.0800 MG/L (1.1×)
Each dot is one over-the-limit violation: the measured value divided by the limit it broke, on a log scale. Most legal limits for chemicals are running averages set for a lifetime of drinking, so “just over” and “ten times over” are very different news. Hover a dot for the numbers.

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 16 results on file · action level 15 ppb

28 ppb
8.7 ppb
5.8 ppb
5.6 ppb
5 ppb
5 ppb
4.8 ppb
4.8 ppb
4.6 ppb
4.6 ppb
4.6 ppb
3.6 ppb
3.6 ppb
3.5 ppb
3 ppb
0 ppb

Open now (2)

  1. 2024-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/ROpen
  2. 2014-07-01E. ColiMonitoring, Source Water (GWR)Open

Every violation on record

  1. 2025-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  2. 2024-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/ROpen
  3. 2024-07-01Lead and Copper RuleWater Quality Parameter M/RPeriod ended · no return to compliance on file
  4. 2023-09-29Lead and Copper RuleLead Consumer NoticeBack in compliance
  5. 2023-07-01Lead and Copper RuleWater Quality Parameter M/RPeriod ended · no return to compliance on file
  6. 2022-07-01Lead and Copper RuleWater Quality Parameter M/RPeriod ended · no return to compliance on file
  7. 2022-07-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  8. 2022-01-01Lead and Copper RuleWater Quality Parameter M/RBack in compliance
  9. 2021-07-01Lead and Copper RuleWater Quality Parameter M/RBack in compliance
  10. 2021-01-01Lead and Copper RuleWater Quality Parameter M/RBack in compliance
  11. 2020-07-01Lead and Copper RuleWater Quality Parameter M/RBack in compliance
  12. 2020-01-01Lead and Copper RuleWater Quality Parameter M/RBack in compliance
  13. 2019-08-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  14. 2019-07-01Lead and Copper RuleWater Quality Parameter M/RBack in compliance
  15. 2019-07-01Chlorine ×2Monitoring and Reporting (DBP)Back in compliance
  16. 2019-07-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  17. 2019-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  18. 2019-05-29E. ColiMonitoring, Source Water (GWR)Back in compliance
  19. 2019-01-01Lead and Copper RuleWater Quality Parameter M/RBack in compliance
  20. 2019-01-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0640 MG/L · limit 0.0600 MG/LBack in compliance
  21. 2019-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0830 MG/L · limit 0.0800 MG/LBack in compliance
  22. 2018-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0870 MG/L · limit 0.0800 MG/LBack in compliance
  23. 2018-10-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  24. 2017-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  25. 2016-10-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
Show the other 12 entries
  1. 2016-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  2. 2016-04-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  3. 2014-07-01E. ColiMonitoring, Source Water (GWR)Open
  4. 2014-01-01Radium-228 ×2Monitoring, RegularBack in compliance
  5. 2014-01-01Radium-226 ×2Monitoring, RegularBack in compliance
  6. 2014-01-01Combined Radium (-226 and -228) ×2Monitoring, RegularBack in compliance
  7. 2014-01-01Combined Uranium ×2Monitoring, RegularBack in compliance
  8. 2014-01-01Gross Alpha, Excl. Radon and U ×2Monitoring, RegularBack in compliance
  9. 2013-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  10. 2012-07-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  11. 2012-07-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  12. 2004-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance

System details

Population served14,010
Service connections4,608
Water sourceSurface Water Purchased
System typeCommunity Water System
OwnerLocal Government
StatusActive
CityPompton Plains
EPA ZIP on file07444

Areas served

  • Morris County

Reading this record

Pequannock Twp Water Department is a community water system that draws from surface water purchased and serves about 14,010 people in Pompton Plains, 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.