Community Water System · PWSID CA4010027

Nacimiento Water Company

Serves 2,181 peopleSurface WaterOwner: PrivateBradley, California
Nothing open that measures the water, but 2 open testing or paperwork violations.

A missed test is not evidence of bad water. It also is not evidence of good water: for that period nobody checked.

On record since 1996: 46 violations. 26 over the limit · 16 missed or late tests · 4 notices or reports. Most recent began 2024-10-01.

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

26Over the limit
0Treatment lapse
16Missed or late test1 open
4Notice or report1 open

More violations on record than 97% 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

1996 · Missed or late test: 11998 · Missed or late test: 1200020052009 · Missed or late test: 120102015 · Over the limit: 120152016 · Over the limit: 52016 · Over the limit: 52016 · Over the limit: 52016 · Over the limit: 52016 · Over the limit: 52016 · Notice or report: 22016 · Notice or report: 22017 · Over the limit: 12018 · Over the limit: 32018 · Over the limit: 32018 · Over the limit: 32018 · Missed or late test: 42018 · Missed or late test: 42018 · Missed or late test: 42018 · Missed or late test: 42019 · Over the limit: 62019 · Over the limit: 62019 · Over the limit: 62019 · Over the limit: 62019 · Over the limit: 62019 · Over the limit: 62019 · Missed or late test: 32019 · Missed or late test: 32019 · Missed or late test: 32020 · Over the limit: 12020 · Missed or late test: 120202022 · Over the limit: 42022 · Over the limit: 42022 · Over the limit: 42022 · Over the limit: 42023 · Over the limit: 42023 · Over the limit: 42023 · Over the limit: 42023 · Over the limit: 42023 · Missed or late test: 52023 · Missed or late test: 52023 · Missed or late test: 52023 · Missed or late test: 52023 · Missed or late test: 52023 · Notice or report: 12024 · Over the limit: 12024 · Notice or report: 12025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
57% over the limit · 2635% missed or late test · 169% notice or report · 4

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×+Total Haloacetic Acids (HAA5)Trihalomethanes (TTHM)2024-10-01 · Total Haloacetic Acids (HAA5): measured 0.6600 MG/L vs limit 0.0600 MG/L (11.0×)2023-04-01 · Total Haloacetic Acids (HAA5): measured 0.1020 MG/L vs limit 0.0600 MG/L (1.7×)2023-04-01 · Trihalomethanes (TTHM): measured 0.1000 MG/L vs limit 0.0800 MG/L (1.2×)2023-01-01 · Total Haloacetic Acids (HAA5): measured 0.1020 MG/L vs limit 0.0600 MG/L (1.7×)2023-01-01 · Trihalomethanes (TTHM): measured 0.1050 MG/L vs limit 0.0800 MG/L (1.3×)2022-10-01 · Total Haloacetic Acids (HAA5): measured 0.0830 MG/L vs limit 0.0600 MG/L (1.4×)2022-10-01 · Trihalomethanes (TTHM): measured 0.0830 MG/L vs limit 0.0800 MG/L (1.0×)2022-07-01 · Total Haloacetic Acids (HAA5): measured 0.0720 MG/L vs limit 0.0600 MG/L (1.2×)2022-07-01 · Trihalomethanes (TTHM): measured 0.0910 MG/L vs limit 0.0800 MG/L (1.1×)2020-07-01 · Total Haloacetic Acids (HAA5): measured 0.0700 MG/L vs limit 0.0600 MG/L (1.2×)2019-04-01 · Total Haloacetic Acids (HAA5): measured 0.0790 MG/L vs limit 0.0600 MG/L (1.3×)2019-04-01 · Total Haloacetic Acids (HAA5): measured 0.0800 MG/L vs limit 0.0600 MG/L (1.3×)2019-01-01 · Total Haloacetic Acids (HAA5): measured 0.0860 MG/L vs limit 0.0600 MG/L (1.4×)2019-01-01 · Total Haloacetic Acids (HAA5): measured 0.0850 MG/L vs limit 0.0600 MG/L (1.4×)2019-01-01 · Trihalomethanes (TTHM): measured 0.0840 MG/L vs limit 0.0800 MG/L (1.1×)2019-01-01 · Trihalomethanes (TTHM): measured 0.0810 MG/L vs limit 0.0800 MG/L (1.0×)2018-10-01 · Total Haloacetic Acids (HAA5): measured 0.0830 MG/L vs limit 0.0600 MG/L (1.4×)2018-10-01 · Total Haloacetic Acids (HAA5): measured 0.0630 MG/L vs limit 0.0600 MG/L (1.1×)2018-07-01 · Total Haloacetic Acids (HAA5): measured 0.1070 MG/L vs limit 0.0600 MG/L (1.8×)2017-01-01 · Trihalomethanes (TTHM): measured 0.0870 MG/L vs limit 0.0800 MG/L (1.1×)2016-10-01 · Trihalomethanes (TTHM): measured 0.0920 MG/L vs limit 0.0800 MG/L (1.1×)2016-07-01 · Trihalomethanes (TTHM): measured 0.0990 MG/L vs limit 0.0800 MG/L (1.2×)2016-07-01 · Total Haloacetic Acids (HAA5): measured 0.0730 MG/L vs limit 0.0600 MG/L (1.2×)2016-04-01 · Trihalomethanes (TTHM): measured 0.0880 MG/L vs limit 0.0800 MG/L (1.1×)2016-01-01 · Trihalomethanes (TTHM): measured 0.0840 MG/L vs limit 0.0800 MG/L (1.1×)2015-10-01 · Total Haloacetic Acids (HAA5): measured 0.0660 MG/L vs limit 0.0600 MG/L (1.1×)
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

0.27 ppb
0 ppb
0 ppb
0 ppb

Open now (2)

  1. 2024-07-01Consumer Confidence RuleCCR Complete Failure to ReportOpen
  2. 2023-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/ROpen

Every violation on record

  1. 2024-10-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.6600 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  2. 2024-07-01Consumer Confidence RuleCCR Complete Failure to ReportOpen
  3. 2023-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  4. 2023-04-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.1020 MG/L · limit 0.0600 MG/LBack in compliance
  5. 2023-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1000 MG/L · limit 0.0800 MG/LBack in compliance
  6. 2023-04-01BromateMonitoring and Reporting (DBP)Back in compliance
  7. 2023-04-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  8. 2023-04-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  9. 2023-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/ROpen
  10. 2023-01-01Unknown contaminantOperations ReportPeriod ended · no return to compliance on file
  11. 2023-01-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.1020 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  12. 2023-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1050 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  13. 2022-10-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0830 MG/L · limit 0.0600 MG/LBack in compliance
  14. 2022-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0830 MG/L · limit 0.0800 MG/LBack in compliance
  15. 2022-07-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0720 MG/L · limit 0.0600 MG/LBack in compliance
  16. 2022-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0910 MG/L · limit 0.0800 MG/LBack in compliance
  17. 2020-07-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0700 MG/L · limit 0.0600 MG/LBack in compliance
  18. 2020-07-01BromateMonitoring and Reporting (DBP)Back in compliance
  19. 2019-04-01Total Haloacetic Acids (HAA5) ×2MCL, Averagemeasured 0.0790 MG/L · limit 0.0600 MG/LBack in compliance
  20. 2019-01-01Total Haloacetic Acids (HAA5) ×2MCL, Averagemeasured 0.0860 MG/L · limit 0.0600 MG/LBack in compliance
  21. 2019-01-01Trihalomethanes (TTHM) ×2MCL, Averagemeasured 0.0840 MG/L · limit 0.0800 MG/LBack in compliance
  22. 2019-01-01BromateMonitoring and Reporting (DBP)Back in compliance
  23. 2019-01-01Total Haloacetic Acids (HAA5)Monitoring, Routine (IDSE)Back in compliance
  24. 2019-01-01Trihalomethanes (TTHM)Monitoring, Routine (IDSE)Back in compliance
  25. 2018-10-01BromateMonitoring and Reporting (DBP)Back in compliance
Show the other 17 entries
  1. 2018-10-01Total Haloacetic Acids (HAA5) ×2MCL, Averagemeasured 0.0830 MG/L · limit 0.0600 MG/LBack in compliance
  2. 2018-07-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.1070 MG/L · limit 0.0600 MG/LBack in compliance
  3. 2018-04-01BromateMonitoring and Reporting (DBP)Back in compliance
  4. 2018-04-01Total Haloacetic Acids (HAA5)Monitoring, Routine (IDSE)Back in compliance
  5. 2018-04-01Trihalomethanes (TTHM)Monitoring, Routine (IDSE)Back in compliance
  6. 2017-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0870 MG/L · limit 0.0800 MG/LBack in compliance
  7. 2016-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0920 MG/L · limit 0.0800 MG/LBack in compliance
  8. 2016-07-01Unknown contaminantOperations ReportBack in compliance
  9. 2016-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0990 MG/L · limit 0.0800 MG/LBack in compliance
  10. 2016-07-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0730 MG/L · limit 0.0600 MG/LBack in compliance
  11. 2016-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0880 MG/L · limit 0.0800 MG/LBack in compliance
  12. 2016-01-01Unknown contaminantOperations ReportBack in compliance
  13. 2016-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0840 MG/L · limit 0.0800 MG/LBack in compliance
  14. 2015-10-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0660 MG/L · limit 0.0600 MG/LBack in compliance
  15. 2009-06-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  16. 1998-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  17. 1996-01-01Lead and Copper RuleInitial Tap Sampling for Pb and CuBack in compliance

System details

Population served2,181
Service connections663
Water sourceSurface Water
System typeCommunity Water System
OwnerPrivate
StatusActive
CityBradley
EPA ZIP on file93426

Areas served

  • San Luis Obispo County

Reading this record

Nacimiento Water Company is a community water system that draws from surface water and serves about 2,181 people in Bradley, 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.