Transient Non-Community · PWSID NC0291474

Unc-Ch Kerr Lake Piney Thorny

Serves 50 peopleGroundwaterOwner: StateChapel Hill, North Carolina
Nothing open that measures the water, but 1 open testing or paperwork violation.

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 2003: 13 violations. 2 missed or late tests · 11 notices or reports. Most recent began 2023-07-01.

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
2Missed or late test
11Notice or report1 open

More violations on record than 80% of active water systems in North Carolina. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

2003 · Notice or report: 12004 · Notice or report: 12005 · Notice or report: 22005 · Notice or report: 220052007 · Notice or report: 12009 · Notice or report: 22009 · Notice or report: 22010 · Notice or report: 120102013 · Notice or report: 120152016 · Missed or late test: 12019 · Notice or report: 120202023 · Missed or late test: 12023 · Notice or report: 12025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
15% missed or late test · 285% notice or report · 11

Across North Carolina, 39% of violations are missed or late tests and 2% are water over a limit.

Open now (1)

  1. 2023-05-01Revised Total Coliform RuleRPTOpen

Every violation on record

  1. 2023-07-01Revised Total Coliform RuleMONBack in compliance
  2. 2023-05-01Revised Total Coliform RuleRPTOpen
  3. 2019-05-01Revised Total Coliform RuleRPTBack in compliance
  4. 2016-07-01Revised Total Coliform RuleMONBack in compliance
  5. 2013-02-15Public NoticePN Violation for NPDWR ViolationBack in compliance
  6. 2010-03-05Public NoticePN Violation for NPDWR ViolationBack in compliance
  7. 2009-03-11Public NoticePN Violation for NPDWR ViolationBack in compliance
  8. 2009-02-19Public NoticePN Violation for NPDWR ViolationBack in compliance
  9. 2007-12-08Public NoticePN Violation for NPDWR ViolationBack in compliance
  10. 2005-11-20Public NoticePN Violation without NPDWR ViolationBack in compliance
  11. 2005-04-02Public NoticePN Violation without NPDWR ViolationBack in compliance
  12. 2004-04-26Public NoticePN Violation without NPDWR ViolationBack in compliance
  13. 2003-02-22Public NoticePN Violation without NPDWR ViolationBack in compliance

System details

Population served50
Service connections1
Water sourceGroundwater
System typeTransient Non-Community
OwnerState
StatusActive
CityChapel Hill
EPA ZIP on file27599

Areas served

  • Chapel Hill, Vance County

Reading this record

Unc-Ch Kerr Lake Piney Thorny is a transient non-community that draws from groundwater and serves about 50 people in Chapel Hill, North Carolina. 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.