Non-Transient Non-Community · PWSID 020000015

Tuscarora Nation School

Serves 175 peopleGroundwaterOwner: Native AmericanSanborn, New YorkServes a school or daycare
Nothing open right now.

On record since 2016: 23 violations. 15 missed or late tests · 8 notices or reports. Most recent began 2025-08-01.

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
0Treatment lapse
15Missed or late test
8Notice or report

More violations on record than 84% 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

2005201020152016 · Missed or late test: 12017 · Missed or late test: 52017 · Missed or late test: 52017 · Missed or late test: 52017 · Missed or late test: 52017 · Missed or late test: 520202021 · Notice or report: 42021 · Notice or report: 42021 · Notice or report: 42021 · Notice or report: 42022 · Missed or late test: 12022 · Notice or report: 22022 · Notice or report: 22024 · Missed or late test: 52024 · Missed or late test: 52024 · Missed or late test: 52024 · Missed or late test: 52024 · Missed or late test: 52024 · Notice or report: 22024 · Notice or report: 22025 · Missed or late test: 32025 · Missed or late test: 32025 · Missed or late test: 32025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
65% missed or late test · 1535% notice or report · 8

Across New York, 67% of violations are missed or late tests and 3% 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 7 results on file · action level 15 ppb

6 ppb
6 ppb
4.9 ppb
3.7 ppb
2.6 ppb
1.8 ppb
below 1 ppb

Copper, 90th percentile 1 result on file · action level 1.3 mg/L

49 mg/L as filed — a value this high in EPA's file is often µg/L entered as mg/L

Every violation on record

  1. 2025-08-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  2. 2025-07-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  3. 2025-06-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  4. 2024-12-01Revised Total Coliform RuleRPTBack in compliance
  5. 2024-07-01NitriteMonitoring, RegularPeriod ended · no return to compliance on file
  6. 2024-02-01Revised Total Coliform RuleRPTBack in compliance
  7. 2024-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  8. 2024-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  9. 2024-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  10. 2024-01-01NitrateMonitoring, RegularPeriod ended · no return to compliance on file
  11. 2022-08-01Revised Total Coliform RuleRPTBack in compliance
  12. 2022-07-01Revised Total Coliform RuleRPTBack in compliance
  13. 2022-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  14. 2021-07-01Revised Total Coliform RuleRPTBack in compliance
  15. 2021-03-01Revised Total Coliform RuleRPTBack in compliance
  16. 2021-02-01Revised Total Coliform RuleRPTBack in compliance
  17. 2021-01-01Revised Total Coliform RuleRPTBack in compliance
  18. 2017-11-01Revised Total Coliform RuleMONBack in compliance
  19. 2017-04-01Revised Total Coliform RuleMONBack in compliance
  20. 2017-03-01Revised Total Coliform RuleMONBack in compliance
  21. 2017-02-01Revised Total Coliform RuleMONBack in compliance
  22. 2017-01-01Revised Total Coliform RuleMONBack in compliance
  23. 2016-08-01E. ColiMonitoring, Source Water (GWR)Back in compliance

System details

Population served175
Service connections1
Water sourceGroundwater
System typeNon-Transient Non-Community
OwnerNative American
StatusActive
CitySanborn
EPA ZIP on file14132

Areas served

    Reading this record

    Tuscarora Nation School is a non-transient non-community that draws from groundwater and serves about 175 people in Sanborn, 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.