Non-Transient Non-Community · PWSID NH1515010

Mason Public Sch

Serves 110 peopleGroundwaterOwner: Local GovernmentMason, New HampshireServes a school or daycare
Nothing open right now.

On record since 2016: 3 violations. 2 missed or late tests · 1 notice or report. Most recent began 2022-07-11.

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
2Missed or late test
1Notice or report

More violations on record than 48% of active water systems in New Hampshire. 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: 12016 · Notice or report: 120202022 · Missed or late test: 12025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
67% missed or late test · 233% notice or report · 1

Across New Hampshire, 37% of violations are missed or late tests and 7% are water over a limit.

Every violation on record

  1. 2022-07-11Lead and Copper RuleWater Quality Parameter M/RBack in compliance
  2. 2016-12-01Revised Total Coliform RuleRPTBack in compliance
  3. 2016-12-01Revised Total Coliform RuleMONBack in compliance

System details

Population served110
Service connections2
Water sourceGroundwater
System typeNon-Transient Non-Community
OwnerLocal Government
StatusActive
CityMason
EPA ZIP on file03048

Areas served

  • Mason, Hillsborough

Reading this record

Mason Public Sch is a non-transient non-community that draws from groundwater and serves about 110 people in Mason, New Hampshire. 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.