Community Water System · PWSID LA1013006

Castor Water System

Serves 435 peopleGroundwaterOwner: Local GovernmentCastor, Louisiana
Nothing open right now.

On record since 2011: 34 violations. 19 over the limit · 15 missed or late tests. Most recent began 2019-01-01.

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

19Over the limit
0Treatment lapse
15Missed or late test
0Notice or report

More violations on record than 87% of active water systems in Louisiana. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

200520102011 · Over the limit: 22011 · Over the limit: 22011 · Missed or late test: 42011 · Missed or late test: 42011 · Missed or late test: 42011 · Missed or late test: 42012 · Over the limit: 42012 · Over the limit: 42012 · Over the limit: 42012 · Over the limit: 42013 · Missed or late test: 62013 · Missed or late test: 62013 · Missed or late test: 62013 · Missed or late test: 62013 · Missed or late test: 62013 · Missed or late test: 62014 · Over the limit: 22014 · Over the limit: 22014 · Missed or late test: 120152017 · Over the limit: 42017 · Over the limit: 42017 · Over the limit: 42017 · Over the limit: 42017 · Missed or late test: 42017 · Missed or late test: 42017 · Missed or late test: 42017 · Missed or late test: 42018 · Over the limit: 62018 · Over the limit: 62018 · Over the limit: 62018 · Over the limit: 62018 · Over the limit: 62018 · Over the limit: 62019 · Over the limit: 120202025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
56% over the limit · 1944% missed or late test · 15

Across Louisiana, 31% of violations are missed or late tests and 25% are water over a limit.

How far over the limit

at the limit2×5×10×100×+Total Haloacetic Acids (HAA5)Trihalomethanes (TTHM)2019-01-01 · 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 100.00 UG/L vs limit 60.00 UG/L (1.7×)2018-07-01 · Trihalomethanes (TTHM): measured 125.00 UG/L vs limit 80.00 UG/L (1.6×)2018-04-01 · Trihalomethanes (TTHM): measured 128.00 UG/L vs limit 80.00 UG/L (1.6×)2018-04-01 · Total Haloacetic Acids (HAA5): measured 96.00 UG/L vs limit 60.00 UG/L (1.6×)2018-01-01 · Trihalomethanes (TTHM): measured 161.00 UG/L vs limit 80.00 UG/L (2.0×)2018-01-01 · Total Haloacetic Acids (HAA5): measured 115.00 UG/L vs limit 60.00 UG/L (1.9×)2017-10-01 · Total Haloacetic Acids (HAA5): measured 124.00 UG/L vs limit 60.00 UG/L (2.1×)2017-10-01 · Trihalomethanes (TTHM): measured 161.00 UG/L vs limit 80.00 UG/L (2.0×)2017-07-01 · Trihalomethanes (TTHM): measured 114.00 UG/L vs limit 80.00 UG/L (1.4×)2017-07-01 · Total Haloacetic Acids (HAA5): measured 75.00 UG/L vs limit 60.00 UG/L (1.2×)2014-07-01 · Total Haloacetic Acids (HAA5): measured 85.00 UG/L vs limit 60.00 UG/L (1.4×)2014-07-01 · Trihalomethanes (TTHM): measured 109.00 UG/L vs limit 80.00 UG/L (1.4×)2012-07-01 · Trihalomethanes (TTHM): measured 97.00 UG/L vs limit 80.00 UG/L (1.2×)2012-04-01 · Total Haloacetic Acids (HAA5): measured 96.00 UG/L vs limit 60.00 UG/L (1.6×)2012-04-01 · Trihalomethanes (TTHM): measured 95.00 UG/L vs limit 80.00 UG/L (1.2×)2012-01-01 · Trihalomethanes (TTHM): measured 95.00 UG/L vs limit 80.00 UG/L (1.2×)2011-07-01 · Total Haloacetic Acids (HAA5): measured 70.00 UG/L vs limit 60.00 UG/L (1.2×)2011-07-01 · Trihalomethanes (TTHM): measured 109.00 UG/L vs limit 80.00 UG/L (1.4×)
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

2 ppb
2 ppb
1 ppb
0.3 ppb

Every violation on record

  1. 2019-01-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0630 MG/L · limit 0.0600 MG/LBack in compliance
  2. 2018-07-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 100.00 UG/L · limit 60.00 UG/LBack in compliance
  3. 2018-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 125.00 UG/L · limit 80.00 UG/LBack in compliance
  4. 2018-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 128.00 UG/L · limit 80.00 UG/LBack in compliance
  5. 2018-04-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 96.00 UG/L · limit 60.00 UG/LBack in compliance
  6. 2018-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 161.00 UG/L · limit 80.00 UG/LBack in compliance
  7. 2018-01-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 115.00 UG/L · limit 60.00 UG/LBack in compliance
  8. 2017-10-31Total Haloacetic Acids (HAA5)Failure Submit IDSE/Subpart V Plan RptBack in compliance
  9. 2017-10-31Trihalomethanes (TTHM)Failure Submit IDSE/Subpart V Plan RptBack in compliance
  10. 2017-10-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 124.00 UG/L · limit 60.00 UG/LBack in compliance
  11. 2017-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 161.00 UG/L · limit 80.00 UG/LBack in compliance
  12. 2017-07-31Total Haloacetic Acids (HAA5)Failure Submit IDSE/Subpart V Plan RptBack in compliance
  13. 2017-07-31Trihalomethanes (TTHM)Failure Submit IDSE/Subpart V Plan RptBack in compliance
  14. 2017-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 114.00 UG/L · limit 80.00 UG/LBack in compliance
  15. 2017-07-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 75.00 UG/L · limit 60.00 UG/LBack in compliance
  16. 2014-07-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 85.00 UG/L · limit 60.00 UG/LBack in compliance
  17. 2014-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 109.00 UG/L · limit 80.00 UG/LBack in compliance
  18. 2014-05-01Trihalomethanes (TTHM)Failure Submit IDSE/Subpart V Plan RptBack in compliance
  19. 2013-09-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  20. 2013-09-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  21. 2013-07-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  22. 2013-07-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  23. 2013-04-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  24. 2013-04-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  25. 2012-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 97.00 UG/L · limit 80.00 UG/LBack in compliance
Show the other 9 entries
  1. 2012-04-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 96.00 UG/L · limit 60.00 UG/LBack in compliance
  2. 2012-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 95.00 UG/L · limit 80.00 UG/LBack in compliance
  3. 2012-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 95.00 UG/L · limit 80.00 UG/LBack in compliance
  4. 2011-10-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  5. 2011-10-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  6. 2011-07-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 70.00 UG/L · limit 60.00 UG/LBack in compliance
  7. 2011-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 109.00 UG/L · limit 80.00 UG/LBack in compliance
  8. 2011-04-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  9. 2011-04-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance

System details

Population served435
Service connections145
Water sourceGroundwater
System typeCommunity Water System
OwnerLocal Government
StatusActive
CityCastor
EPA ZIP on file71016

Areas served

  • Bienville Parish

Reading this record

Castor Water System is a community water system that draws from groundwater and serves about 435 people in Castor, Louisiana. 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.