Community Water System · PWSID NC4019009

Chapel Ridge S/D

Serves 2,098 peopleSurface Water PurchasedOwner: PrivateCary, North Carolina
Nothing open right now.

On record since 2010: 4 violations. 3 over the limit · 1 notice or report. Most recent began 2018-04-01.

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
0Missed or late test
1Notice or report

More violations on record than 45% 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

20052010 · Notice or report: 1201020152017 · Over the limit: 12018 · Over the limit: 22018 · Over the limit: 220202025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
75% over the limit · 325% notice or report · 1

Across North Carolina, 39% 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×+Trihalomethanes (TTHM)2018-04-01 · Trihalomethanes (TTHM): measured 0.0830 MG/L vs limit 0.0800 MG/L (1.0×)2018-01-01 · Trihalomethanes (TTHM): measured 0.0910 MG/L vs limit 0.0800 MG/L (1.1×)2017-10-01 · Trihalomethanes (TTHM): measured 0.0820 MG/L vs limit 0.0800 MG/L (1.0×)
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 4 results on file · action level 15 ppb

0 ppb
0 ppb
0 ppb
0 ppb

Every violation on record

  1. 2018-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0830 MG/L · limit 0.0800 MG/LBack in compliance
  2. 2018-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0910 MG/L · limit 0.0800 MG/LBack in compliance
  3. 2017-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0820 MG/L · limit 0.0800 MG/LBack in compliance
  4. 2010-04-03Public NoticePN Violation for NPDWR ViolationBack in compliance

System details

Population served2,098
Service connections826
Water sourceSurface Water Purchased
System typeCommunity Water System
OwnerPrivate
StatusActive
CityCary
EPA ZIP on file27511

Areas served

  • Pittsboro, Chatham County

Reading this record

Chapel Ridge S/D is a community water system that draws from surface water purchased and serves about 2,098 people in Cary, 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.