Community Water System · PWSID PA7010053

Walnut Grove Mhc

Serves 425 peopleGroundwaterOwner: PrivateFarmington Hills, Michigan
Nothing open right now.

On record since 2004: 7 violations. 3 missed or late tests · 4 notices or reports. Most recent began 2022-10-01.

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
3Missed or late test
4Notice or report

More violations on record than 82% of active water systems in Michigan. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

2004 · Notice or report: 22004 · Notice or report: 220052008 · Notice or report: 12009 · Notice or report: 1201020152020 · Missed or late test: 22020 · Missed or late test: 220202022 · Missed or late test: 12025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
43% missed or late test · 357% notice or report · 4

Across Michigan, 91% of violations are missed or late tests and 3% are water over a limit.

Every violation on record

  1. 2022-10-01Gross Alpha, Excl. Radon and UMonitoring, RegularBack in compliance
  2. 2020-11-01Groundwater RuleMonitoring of Treatment (SWTR-Unfilt/GWR)Back in compliance
  3. 2020-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  4. 2009-10-11Public NoticePN Violation for NPDWR ViolationBack in compliance
  5. 2008-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  6. 2004-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  7. 2004-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance

System details

Population served425
Service connections167
Water sourceGroundwater
System typeCommunity Water System
OwnerPrivate
StatusActive
CityFarmington Hills
EPA ZIP on file48334

Areas served

  • Adams County

Reading this record

Walnut Grove Mhc is a community water system that draws from groundwater and serves about 425 people in Farmington Hills, Michigan. 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.