Community Water System · PWSID CA3701408

Yuima Municipal Water District

Serves 360 peopleSurface Water PurchasedOwner: Local GovernmentPauma Valley, California
Nothing open right now.

On record since 2003: 3 violations. 1 over the limit · 2 missed or late tests. Most recent began 2022-06-01.

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

1Over the limit
0Treatment lapse
2Missed or late test
0Notice or report

More violations on record than 64% 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: 12005201020152018 · Over the limit: 120202022 · Missed or late test: 12025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
33% over the limit · 167% missed or late test · 2

Across California, 52% of violations are missed or late tests and 29% are water over a limit.

How far over the limit

at the limit2×5×10×100×+Nitrate2018-07-01 · Nitrate: measured 12.00 MG/L vs limit 10.00 MG/L (1.2×)
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 3 results on file · action level 15 ppb

0 ppb
0 ppb
0 ppb

Every violation on record

  1. 2022-06-01Revised Total Coliform RuleMONBack in compliance
  2. 2018-07-01NitrateMCL, Single Samplemeasured 12.00 MG/L · limit 10.00 MG/LBack in compliance
  3. 2003-01-02Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance

System details

Population served360
Service connections109
Water sourceSurface Water Purchased
System typeCommunity Water System
OwnerLocal Government
StatusActive
CityPauma Valley
EPA ZIP on file92061

Areas served

  • San Diego County

Reading this record

Yuima Municipal Water District is a community water system that draws from surface water purchased and serves about 360 people in Pauma Valley, 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.