Community Water System · PWSID CA3610012

City of Chino

Serves 86,435 peopleSurface Water PurchasedOwner: Local GovernmentChino, California
Nothing open right now.

On record since 2003: 7 violations. 7 missed or late tests. Most recent began 2021-10-01.

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
7Missed or late test
0Notice or report

More violations on record than 83% of active water systems in California. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

2003 · Missed or late test: 12005 · Missed or late test: 120052006 · Missed or late test: 120102014 · Missed or late test: 32014 · Missed or late test: 32014 · Missed or late test: 3201520202021 · Missed or late test: 12025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
100% missed or late test · 7

Across California, 52% of violations are missed or late tests and 29% 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 3 results on file · action level 15 ppb

8 ppb
6.1 ppb
1 ppb

Every violation on record

  1. 2021-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  2. 2014-07-01E. ColiMonitoring, Source Water (GWR)Back in compliance
  3. 2014-06-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  4. 2014-06-01E. ColiMonitoring, Source Water (GWR)Back in compliance
  5. 2006-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  6. 2005-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  7. 2003-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance

System details

Population served86,435
Service connections23,373
Water sourceSurface Water Purchased
System typeCommunity Water System
OwnerLocal Government
StatusActive
CityChino
EPA ZIP on file91708

Areas served

  • Chino, San Bernardino County

Reading this record

City of Chino is a community water system that draws from surface water purchased and serves about 86,435 people in Chino, California. 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.