Transient Non-Community · PWSID NY3930003

Patterson Town Hall (New)

Serves 25 peopleGroundwaterOwner: PrivatePatterson, New York
Nothing open right now.

On record since 2017: 21 violations. 21 over the limit. Most recent began 2023-01-01.

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

21Over the limit
0Treatment lapse
0Missed or late test
0Notice or report

More violations on record than 82% of active water systems in New York. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

2005201020152017 · Over the limit: 12018 · Over the limit: 32018 · Over the limit: 32018 · Over the limit: 32019 · Over the limit: 42019 · Over the limit: 42019 · Over the limit: 42019 · Over the limit: 420202021 · Over the limit: 42021 · Over the limit: 42021 · Over the limit: 42021 · Over the limit: 42022 · Over the limit: 82022 · Over the limit: 82022 · Over the limit: 82022 · Over the limit: 82022 · Over the limit: 82022 · Over the limit: 82022 · Over the limit: 82022 · Over the limit: 82023 · Over the limit: 12025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
100% over the limit · 21

Across New York, 67% of violations are missed or late tests and 3% are water over a limit.

How far over the limit

at the limit2×5×10×100×+ChlorideNitrate2023-01-01 · Chloride: measured 414.00 MG/L vs limit 250.00 MG/L (1.7×)2022-10-01 · Nitrate: measured 22.00 MG/L vs limit 10.00 MG/L (2.2×)2022-10-01 · Chloride: measured 522.00 MG/L vs limit 250.00 MG/L (2.1×)2022-07-01 · Nitrate: measured 20.10 MG/L vs limit 10.00 MG/L (2.0×)2022-07-01 · Nitrate: measured 17.20 MG/L vs limit 10.00 MG/L (1.7×)2022-04-01 · Chloride: measured 553.00 MG/L vs limit 250.00 MG/L (2.2×)2022-04-01 · Nitrate: measured 19.10 MG/L vs limit 10.00 MG/L (1.9×)2022-01-01 · Chloride: measured 642.00 MG/L vs limit 250.00 MG/L (2.6×)2022-01-01 · Nitrate: measured 18.40 MG/L vs limit 10.00 MG/L (1.8×)2021-10-01 · Chloride: measured 556.00 MG/L vs limit 250.00 MG/L (2.2×)2021-10-01 · Nitrate: measured 16.00 MG/L vs limit 10.00 MG/L (1.6×)2021-07-01 · Nitrate: measured 17.10 MG/L vs limit 10.00 MG/L (1.7×)2021-07-01 · Chloride: measured 616.00 MG/L vs limit 250.00 MG/L (2.5×)2019-07-01 · Chloride: measured 564.00 MG/L vs limit 250.00 MG/L (2.3×)2019-01-01 · Chloride: measured 605.00 MG/L vs limit 250.00 MG/L (2.4×)2019-01-01 · Nitrate: measured 16.20 MG/L vs limit 10.00 MG/L (1.6×)2018-12-17 · Nitrate: measured 18.40 MG/L vs limit 10.00 MG/L (1.8×)2018-10-01 · Nitrate: measured 35.60 MG/L vs limit 10.00 MG/L (3.6×)2018-01-01 · Nitrate: measured 19.30 MG/L vs limit 10.00 MG/L (1.9×)2017-10-01 · Nitrate: measured 17.10 MG/L vs limit 10.00 MG/L (1.7×)
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.

Every violation on record

  1. 2023-01-01ChlorideMCL, Single Samplemeasured 414.00 MG/L · limit 250.00 MG/LBack in compliance
  2. 2022-10-01NitrateMCL, Single Samplemeasured 22.00 MG/L · limit 10.00 MG/LBack in compliance
  3. 2022-10-01ChlorideMCL, Single Samplemeasured 522.00 MG/L · limit 250.00 MG/LBack in compliance
  4. 2022-07-01Nitrate ×2MCL, Single Samplemeasured 20.10 MG/L · limit 10.00 MG/LBack in compliance
  5. 2022-04-01ChlorideMCL, Single Samplemeasured 553.00 MG/L · limit 250.00 MG/LBack in compliance
  6. 2022-04-01NitrateMCL, Single Samplemeasured 19.10 MG/L · limit 10.00 MG/LBack in compliance
  7. 2022-01-01ChlorideMCL, Single Samplemeasured 642.00 MG/L · limit 250.00 MG/LBack in compliance
  8. 2022-01-01NitrateMCL, Single Samplemeasured 18.40 MG/L · limit 10.00 MG/LBack in compliance
  9. 2021-10-01ChlorideMCL, Single Samplemeasured 556.00 MG/L · limit 250.00 MG/LBack in compliance
  10. 2021-10-01NitrateMCL, Single Samplemeasured 16.00 MG/L · limit 10.00 MG/LBack in compliance
  11. 2021-07-01NitrateMCL, Single Samplemeasured 17.10 MG/L · limit 10.00 MG/LBack in compliance
  12. 2021-07-01ChlorideMCL, Single Samplemeasured 616.00 MG/L · limit 250.00 MG/LBack in compliance
  13. 2019-07-01ChlorideMCL, Single Samplemeasured 564.00 MG/L · limit 250.00 MG/LBack in compliance
  14. 2019-04-01NitrateMCL, Single Samplemeasured 17.40 MG/LBack in compliance
  15. 2019-01-01ChlorideMCL, Single Samplemeasured 605.00 MG/L · limit 250.00 MG/LBack in compliance
  16. 2019-01-01NitrateMCL, Single Samplemeasured 16.20 MG/L · limit 10.00 MG/LBack in compliance
  17. 2018-12-17NitrateMCL, Single Samplemeasured 18.40 MG/L · limit 10.00 MG/LBack in compliance
  18. 2018-10-01NitrateMCL, Single Samplemeasured 35.60 MG/L · limit 10.00 MG/LBack in compliance
  19. 2018-01-01NitrateMCL, Single Samplemeasured 19.30 MG/L · limit 10.00 MG/LBack in compliance
  20. 2017-10-01NitrateMCL, Single Samplemeasured 17.10 MG/L · limit 10.00 MG/LBack in compliance

System details

Population served25
Service connections1
Water sourceGroundwater
System typeTransient Non-Community
OwnerPrivate
StatusActive
CityPatterson
EPA ZIP on file12563

Areas served

  • Putnam County

Reading this record

Patterson Town Hall (New) is a transient non-community that draws from groundwater and serves about 25 people in Patterson, New York. 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.