Community Water System · PWSID CA1700519

Golden State Water Company - South Shore

Serves 30 peopleSurface WaterOwner: PrivateRancho Cordova, California
Nothing open that measures the water, but 1 open testing or paperwork violation.

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 1999: 33 violations. 27 over the limit · 1 treatment lapse · 5 missed or late tests. Most recent began 2023-07-01.

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

27Over the limit
1Treatment lapse
5Missed or late test1 open
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

1999 · Treatment lapse: 1200020052009 · Missed or late test: 22009 · Missed or late test: 220102011 · Missed or late test: 22011 · Missed or late test: 220152016 · Over the limit: 42016 · Over the limit: 42016 · Over the limit: 42016 · Over the limit: 42017 · Over the limit: 22017 · Over the limit: 22018 · Over the limit: 42018 · Over the limit: 42018 · Over the limit: 42018 · Over the limit: 42019 · Over the limit: 42019 · Over the limit: 42019 · Over the limit: 42019 · Over the limit: 42020 · Over the limit: 32020 · Over the limit: 32020 · Over the limit: 32020 · Missed or late test: 120202021 · Over the limit: 22021 · Over the limit: 22022 · 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: 42025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
82% over the limit · 273% treatment lapse · 115% missed or late test · 5

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)2023-07-01 · Total Haloacetic Acids (HAA5): measured 87.17 UG/L vs limit 60.00 UG/L (1.5×)2023-04-01 · Trihalomethanes (TTHM): measured 112.30 UG/L vs limit 80.00 UG/L (1.4×)2023-04-01 · Total Haloacetic Acids (HAA5): measured 112.31 UG/L vs limit 60.00 UG/L (1.9×)2023-01-01 · Total Haloacetic Acids (HAA5): measured 110.44 UG/L vs limit 60.00 UG/L (1.8×)2022-10-01 · Total Haloacetic Acids (HAA5): measured 99.26 UG/L vs limit 60.00 UG/L (1.7×)2022-07-01 · Total Haloacetic Acids (HAA5): measured 85.47 UG/L vs limit 60.00 UG/L (1.4×)2022-04-01 · Total Haloacetic Acids (HAA5): measured 86.00 UG/L vs limit 60.00 UG/L (1.4×)2022-01-01 · Total Haloacetic Acids (HAA5): measured 83.65 UG/L vs limit 60.00 UG/L (1.4×)2021-04-01 · Total Haloacetic Acids (HAA5): measured 0.0820 MG/L vs limit 0.0600 MG/L (1.4×)2021-01-01 · Total Haloacetic Acids (HAA5): measured 0.0860 MG/L vs limit 0.0600 MG/L (1.4×)2020-10-01 · Total Haloacetic Acids (HAA5): measured 0.0780 MG/L vs limit 0.0600 MG/L (1.3×)2020-04-01 · Total Haloacetic Acids (HAA5): measured 0.0785 MG/L vs limit 0.0600 MG/L (1.3×)2020-01-01 · Total Haloacetic Acids (HAA5): measured 0.0790 MG/L vs limit 0.0600 MG/L (1.3×)2019-10-01 · Total Haloacetic Acids (HAA5): measured 0.0848 MG/L vs limit 0.0600 MG/L (1.4×)2019-07-01 · Total Haloacetic Acids (HAA5): measured 0.0935 MG/L vs limit 0.0600 MG/L (1.6×)2019-04-01 · Total Haloacetic Acids (HAA5): measured 0.1010 MG/L vs limit 0.0600 MG/L (1.7×)2016-10-01 · Total Haloacetic Acids (HAA5): measured 0.0760 MG/L vs limit 0.0600 MG/L (1.3×)2016-10-01 · Trihalomethanes (TTHM): measured 0.0970 MG/L vs limit 0.0800 MG/L (1.2×)2016-04-01 · Trihalomethanes (TTHM): measured 108.00 UG/L vs limit 80.00 UG/L (1.4×)2016-04-01 · Total Haloacetic Acids (HAA5): measured 71.00 UG/L vs limit 60.00 UG/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

4.2 ppb
2.8 ppb
0 ppb

Open now (1)

  1. 2020-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/ROpen

Every violation on record

  1. 2023-07-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 87.17 UG/L · limit 60.00 UG/LPeriod ended · no return to compliance on file
  2. 2023-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 112.30 UG/L · limit 80.00 UG/LPeriod ended · no return to compliance on file
  3. 2023-04-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 112.31 UG/L · limit 60.00 UG/LPeriod ended · no return to compliance on file
  4. 2023-01-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 110.44 UG/L · limit 60.00 UG/LPeriod ended · no return to compliance on file
  5. 2022-10-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 99.26 UG/L · limit 60.00 UG/LPeriod ended · no return to compliance on file
  6. 2022-07-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 85.47 UG/L · limit 60.00 UG/LPeriod ended · no return to compliance on file
  7. 2022-04-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 86.00 UG/L · limit 60.00 UG/LPeriod ended · no return to compliance on file
  8. 2022-01-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 83.65 UG/L · limit 60.00 UG/LPeriod ended · no return to compliance on file
  9. 2021-04-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0820 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  10. 2021-01-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0860 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  11. 2020-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/ROpen
  12. 2020-10-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0780 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  13. 2020-04-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0785 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  14. 2020-01-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0790 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  15. 2019-10-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0848 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  16. 2019-07-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0935 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  17. 2019-04-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.1010 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  18. 2019-01-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 124.30 UG/LPeriod ended · no return to compliance on file
  19. 2018-10-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 137.00 UG/LPeriod ended · no return to compliance on file
  20. 2018-07-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 147.50 UG/LPeriod ended · no return to compliance on file
  21. 2018-04-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 140.00 UG/LPeriod ended · no return to compliance on file
  22. 2018-01-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 101.10 UG/LPeriod ended · no return to compliance on file
  23. 2017-10-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 83.23 UG/LPeriod ended · no return to compliance on file
  24. 2017-07-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 65.93 UG/LPeriod ended · no return to compliance on file
  25. 2016-10-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0760 MG/L · limit 0.0600 MG/LBack in compliance
Show the other 8 entries
  1. 2016-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0970 MG/L · limit 0.0800 MG/LBack in compliance
  2. 2016-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 108.00 UG/L · limit 80.00 UG/LBack in compliance
  3. 2016-04-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 71.00 UG/L · limit 60.00 UG/LBack in compliance
  4. 2011-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  5. 2011-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  6. 2009-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  7. 2009-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  8. 1999-09-01Surface water treatment (SWTR)Treatment Technique (SWTR and GWR)Back in compliance

System details

Population served30
Service connections24
Water sourceSurface Water
System typeCommunity Water System
OwnerPrivate
StatusActive
CityRancho Cordova
EPA ZIP on file95670

Areas served

  • Lake County

Reading this record

Golden State Water Company - South Shore is a community water system that draws from surface water and serves about 30 people in Rancho Cordova, 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.