Community Water System · PWSID MO6031493

Rockport Subdivision

Serves 204 peopleGroundwaterOwner: PrivateTroy, Missouri
1 open treatment violation.

Open for: Groundwater Rule. EPA counts treatment-technique violations as health-based: a required protective step was not done. It is not a measurement of contamination.

On record since 2011: 6 violations. 2 treatment lapses · 4 notices or reports. Most recent began 2024-02-07.

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

0Over the limit
2Treatment lapse1 open
0Missed or late test
4Notice or report1 open

More violations on record than 57% of active water systems in Missouri. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

200520102011 · Notice or report: 12015 · Notice or report: 120152017 · Treatment lapse: 12018 · Notice or report: 120202023 · Treatment lapse: 12024 · Notice or report: 12025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
33% treatment lapse · 267% notice or report · 4

Across Missouri, 54% of violations are missed or late tests and 8% 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 6 results on file · action level 15 ppb

4 ppb
4 ppb
0 ppb
0 ppb
0 ppb
0 ppb

Open now (2)

  1. 2024-02-07Public NoticePN Violation for NPDWR ViolationOpen
  2. 2023-11-29Groundwater RuleFailure To Address DeficiencyOpen

Every violation on record

  1. 2024-02-07Public NoticePN Violation for NPDWR ViolationOpen
  2. 2023-11-29Groundwater RuleFailure To Address DeficiencyOpen
  3. 2018-02-08Public NoticePN Violation for NPDWR ViolationBack in compliance
  4. 2017-12-01Revised Total Coliform RuleTTBack in compliance
  5. 2015-01-11Groundwater RuleFailure to Consult with StateBack in compliance
  6. 2011-11-17Public NoticePN Violation for NPDWR ViolationBack in compliance

System details

Population served204
Service connections183
Water sourceGroundwater
System typeCommunity Water System
OwnerPrivate
StatusActive
CityTroy
EPA ZIP on file63379-0000

Areas served

  • Lincoln County

Reading this record

Rockport Subdivision is a community water system that draws from groundwater and serves about 204 people in Troy, Missouri. 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.