Community Water System · PWSID CA2000561

Md 08 North Fork Water System

Serves 264 peopleGroundwaterOwner: Local GovernmentMadera, California
Nothing open right now.

On record since 2004: 39 violations. 31 over the limit · 8 missed or late tests. Most recent began 2025-07-01.

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

31Over the limit
0Treatment lapse
8Missed or late test
0Notice or report

More violations on record than 96% 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

2004 · Missed or late test: 12005 · Missed or late test: 120052007 · Missed or late test: 22007 · Missed or late test: 2201020152016 · Over the limit: 12017 · Over the limit: 12018 · Over the limit: 42018 · Over the limit: 42018 · Over the limit: 42018 · Over the limit: 42018 · Missed or late test: 22018 · Missed or late test: 22019 · Over the limit: 32019 · Over the limit: 32019 · Over the limit: 32019 · Missed or late test: 12020 · Over the limit: 32020 · Over the limit: 32020 · Over the limit: 32020 · Missed or late test: 120202021 · Over the limit: 42021 · Over the limit: 42021 · Over the limit: 42021 · Over the limit: 42022 · 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: 42024 · Over the limit: 42024 · Over the limit: 42024 · Over the limit: 42024 · Over the limit: 42025 · Over the limit: 32025 · Over the limit: 32025 · Over the limit: 32025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
79% over the limit · 3121% missed or late test · 8

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×+Arsenic2025-07-01 · Arsenic: measured 0.0110 MG/L vs limit 0.0100 MG/L (1.1×)2025-04-01 · Arsenic: measured 0.0120 MG/L vs limit 0.0100 MG/L (1.2×)2025-01-01 · Arsenic: measured 0.0120 MG/L vs limit 0.0100 MG/L (1.2×)2024-10-01 · Arsenic: measured 0.0122 MG/L vs limit 0.0100 MG/L (1.2×)2024-07-01 · Arsenic: measured 0.0124 MG/L vs limit 0.0100 MG/L (1.2×)2024-04-01 · Arsenic: measured 0.0130 MG/L vs limit 0.0100 MG/L (1.3×)2024-01-01 · Arsenic: measured 0.0125 MG/L vs limit 0.0100 MG/L (1.2×)2023-10-01 · Arsenic: measured 0.0138 MG/L vs limit 0.0100 MG/L (1.4×)2023-07-01 · Arsenic: measured 0.0143 MG/L vs limit 0.0100 MG/L (1.4×)2023-04-01 · Arsenic: measured 0.0143 MG/L vs limit 0.0100 MG/L (1.4×)2023-01-01 · Arsenic: measured 0.0140 MG/L vs limit 0.0100 MG/L (1.4×)2022-10-01 · Arsenic: measured 0.0138 MG/L vs limit 0.0100 MG/L (1.4×)2022-07-01 · Arsenic: measured 0.0135 MG/L vs limit 0.0100 MG/L (1.3×)2022-04-01 · Arsenic: measured 0.0130 MG/L vs limit 0.0100 MG/L (1.3×)2022-01-01 · Arsenic: measured 0.0135 MG/L vs limit 0.0100 MG/L (1.3×)2021-10-01 · Arsenic: measured 0.0130 MG/L vs limit 0.0100 MG/L (1.3×)2021-07-01 · Arsenic: measured 0.0132 MG/L vs limit 0.0100 MG/L (1.3×)2021-04-01 · Arsenic: measured 0.0130 MG/L vs limit 0.0100 MG/L (1.3×)2021-01-01 · Arsenic: measured 0.0130 MG/L vs limit 0.0100 MG/L (1.3×)2020-10-01 · Arsenic: measured 0.0130 MG/L vs limit 0.0100 MG/L (1.3×)2020-07-01 · Arsenic: measured 0.0132 MG/L vs limit 0.0130 MG/L (1.0×)2020-04-01 · Arsenic: measured 0.0132 MG/L vs limit 0.0100 MG/L (1.3×)2019-07-01 · Arsenic: measured 0.0140 MG/L vs limit 0.0100 MG/L (1.4×)2019-04-01 · Arsenic: measured 0.0130 MG/L vs limit 0.0100 MG/L (1.3×)2019-01-01 · Arsenic: measured 0.0138 MG/L vs limit 0.0100 MG/L (1.4×)2018-10-01 · Arsenic: measured 0.0140 MG/L vs limit 0.0100 MG/L (1.4×)2018-07-01 · Arsenic: measured 0.0135 MG/L vs limit 0.0100 MG/L (1.3×)2018-04-01 · Arsenic: measured 0.0138 MG/L vs limit 0.0100 MG/L (1.4×)2018-04-01 · Arsenic: measured 0.0140 MG/L vs limit 0.0100 MG/L (1.4×)2017-01-01 · Arsenic: measured 0.0150 MG/L vs limit 0.0100 MG/L (1.5×)2016-07-01 · Arsenic: measured 0.0130 MG/L vs limit 0.0100 MG/L (1.3×)
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

4 ppb
0.8 ppb
0 ppb

Every violation on record

  1. 2025-07-01ArsenicMCL, Averagemeasured 0.0110 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  2. 2025-04-01ArsenicMCL, Averagemeasured 0.0120 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  3. 2025-01-01ArsenicMCL, Averagemeasured 0.0120 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  4. 2024-10-01ArsenicMCL, Averagemeasured 0.0122 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  5. 2024-07-01ArsenicMCL, Averagemeasured 0.0124 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  6. 2024-04-01ArsenicMCL, Averagemeasured 0.0130 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  7. 2024-01-01ArsenicMCL, Averagemeasured 0.0125 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  8. 2023-10-01ArsenicMCL, Averagemeasured 0.0138 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  9. 2023-07-01ArsenicMCL, Averagemeasured 0.0143 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  10. 2023-04-01ArsenicMCL, Averagemeasured 0.0143 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  11. 2023-01-01ArsenicMCL, Averagemeasured 0.0140 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  12. 2022-10-01ArsenicMCL, Averagemeasured 0.0138 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  13. 2022-07-01ArsenicMCL, Averagemeasured 0.0135 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  14. 2022-04-01ArsenicMCL, Averagemeasured 0.0130 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  15. 2022-01-01ArsenicMCL, Averagemeasured 0.0135 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  16. 2021-10-01ArsenicMCL, Averagemeasured 0.0130 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  17. 2021-07-01ArsenicMCL, Averagemeasured 0.0132 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  18. 2021-04-01ArsenicMCL, Averagemeasured 0.0130 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  19. 2021-01-01ArsenicMCL, Averagemeasured 0.0130 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  20. 2020-10-01ArsenicMCL, Averagemeasured 0.0130 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  21. 2020-07-01ArsenicMCL, Averagemeasured 0.0132 MG/L · limit 0.0130 MG/LPeriod ended · no return to compliance on file
  22. 2020-04-01ArsenicMCL, Averagemeasured 0.0132 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  23. 2020-01-01ArsenicMonitoring, RegularBack in compliance
  24. 2019-10-01ArsenicMonitoring, RegularBack in compliance
  25. 2019-07-01ArsenicMCL, Averagemeasured 0.0140 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
Show the other 13 entries
  1. 2019-04-01ArsenicMCL, Averagemeasured 0.0130 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  2. 2019-01-01ArsenicMCL, Averagemeasured 0.0138 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  3. 2018-10-01ArsenicMCL, Averagemeasured 0.0140 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  4. 2018-10-01ArsenicMonitoring, RegularBack in compliance
  5. 2018-07-01ArsenicMCL, Averagemeasured 0.0135 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  6. 2018-04-01Arsenic ×2MCL, Averagemeasured 0.0138 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  7. 2018-01-01ArsenicMonitoring, RegularBack in compliance
  8. 2017-01-01ArsenicMCL, Single Samplemeasured 0.0150 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  9. 2016-07-01ArsenicMCL, Single Samplemeasured 0.0130 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  10. 2007-01-01SimazineMonitoring, RegularBack in compliance
  11. 2007-01-01AtrazineMonitoring, RegularBack in compliance
  12. 2005-01-01Lead and Copper RuleInitial Tap Sampling for Pb and CuBack in compliance
  13. 2004-01-01Gross Alpha Particle ActivityMonitoring, RegularBack in compliance

System details

Population served264
Service connections75
Water sourceGroundwater
System typeCommunity Water System
OwnerLocal Government
StatusActive
CityMadera
EPA ZIP on file93637

Areas served

  • Madera County

Reading this record

Md 08 North Fork Water System is a community water system that draws from groundwater and serves about 264 people in Madera, 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.