Community Water System · PWSID LA1119015

Horse Shoe Road Water System

Serves 270 peopleGroundwaterOwner: PrivateDoyline, Louisiana
2 open treatment violations.

Open for: Lead service line inventory, Groundwater Rule. EPA counts treatment-technique violations as health-based: a required protective step was not done. It is not a measurement of contamination.

On record since 2004: 56 violations. 10 over the limit · 5 treatment lapses · 18 missed or late tests · 23 notices or reports. Most recent began 2024-10-17.

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

10Over the limit
5Treatment lapse2 open
18Missed or late test
23Notice or report3 open

More violations on record than 94% 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

2004 · Notice or report: 120052010 · Missed or late test: 22010 · Missed or late test: 220102011 · Missed or late test: 22011 · Missed or late test: 22013 · Missed or late test: 52013 · Missed or late test: 52013 · Missed or late test: 52013 · Missed or late test: 52013 · Missed or late test: 52014 · Missed or late test: 22014 · Missed or late test: 22014 · Notice or report: 12015 · Notice or report: 32015 · Notice or report: 32015 · Notice or report: 320152016 · Missed or late test: 32016 · Missed or late test: 32016 · Missed or late test: 32016 · Notice or report: 32016 · Notice or report: 32016 · Notice or report: 32017 · Over the limit: 22017 · Over the limit: 22017 · Missed or late test: 22017 · Missed or late test: 22017 · Notice or report: 42017 · Notice or report: 42017 · Notice or report: 42017 · Notice or report: 42018 · Over the limit: 42018 · Over the limit: 42018 · Over the limit: 42018 · Over the limit: 42018 · Notice or report: 42018 · Notice or report: 42018 · Notice or report: 42018 · Notice or report: 42019 · Over the limit: 42019 · Over the limit: 42019 · Over the limit: 42019 · Over the limit: 42019 · Notice or report: 32019 · Notice or report: 32019 · Notice or report: 32020 · Notice or report: 120202021 · Treatment lapse: 42021 · Treatment lapse: 42021 · Treatment lapse: 42021 · Treatment lapse: 42021 · Missed or late test: 12021 · Notice or report: 12023 · Missed or late test: 12024 · Treatment lapse: 12024 · Notice or report: 22024 · Notice or report: 22025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
18% over the limit · 109% treatment lapse · 532% missed or late test · 1841% notice or report · 23

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×+Trihalomethanes (TTHM)2019-10-01 · Trihalomethanes (TTHM): measured 0.0980 MG/L vs limit 0.0800 MG/L (1.2×)2019-07-01 · Trihalomethanes (TTHM): measured 0.1010 MG/L vs limit 0.0800 MG/L (1.3×)2019-04-01 · Trihalomethanes (TTHM): measured 0.0950 MG/L vs limit 0.0800 MG/L (1.2×)2019-01-01 · Trihalomethanes (TTHM): measured 0.0870 MG/L vs limit 0.0800 MG/L (1.1×)2018-10-01 · Trihalomethanes (TTHM): measured 87.00 UG/L vs limit 80.00 UG/L (1.1×)2018-07-01 · Trihalomethanes (TTHM): measured 88.00 UG/L vs limit 80.00 UG/L (1.1×)2018-04-01 · Trihalomethanes (TTHM): measured 81.00 UG/L vs limit 80.00 UG/L (1.0×)2018-01-01 · Trihalomethanes (TTHM): measured 86.00 UG/L vs limit 80.00 UG/L (1.1×)2017-10-01 · Trihalomethanes (TTHM): measured 86.00 UG/L vs limit 80.00 UG/L (1.1×)2017-04-01 · Trihalomethanes (TTHM): measured 95.00 UG/L vs limit 80.00 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

1 ppb
0 ppb
0 ppb

Open now (5)

  1. 2024-10-17Lead service line inventoryTTOpen
  2. 2024-10-17Lead service line inventoryRPTOpen
  3. 2024-07-01Consumer Confidence RuleCCR Complete Failure to ReportOpen
  4. 2021-05-11Public NoticePN Violation for NPDWR ViolationOpen
  5. 2021-03-23Groundwater RuleFailure To Address DeficiencyOpen

Every violation on record

  1. 2024-10-17Lead service line inventoryTTOpen
  2. 2024-10-17Lead service line inventoryRPTOpen
  3. 2024-07-01Consumer Confidence RuleCCR Complete Failure to ReportOpen
  4. 2023-11-10Lead and Copper RuleLead Consumer NoticeBack in compliance
  5. 2021-05-11Public NoticePN Violation for NPDWR ViolationOpen
  6. 2021-03-23Groundwater RuleFailure To Address DeficiencyOpen
  7. 2021-03-23Groundwater Rule ×3Failure To Address DeficiencyBack in compliance
  8. 2021-02-05Lead and Copper RuleLead Consumer NoticeBack in compliance
  9. 2020-02-04Public NoticePN Violation for NPDWR ViolationBack in compliance
  10. 2019-11-08Public NoticePN Violation for NPDWR ViolationBack in compliance
  11. 2019-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0980 MG/L · limit 0.0800 MG/LBack in compliance
  12. 2019-07-30Public NoticePN Violation for NPDWR ViolationBack in compliance
  13. 2019-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1010 MG/L · limit 0.0800 MG/LBack in compliance
  14. 2019-05-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  15. 2019-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0950 MG/L · limit 0.0800 MG/LBack in compliance
  16. 2019-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0870 MG/L · limit 0.0800 MG/LBack in compliance
  17. 2018-10-16Public NoticePN Violation for NPDWR ViolationBack in compliance
  18. 2018-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 87.00 UG/L · limit 80.00 UG/LBack in compliance
  19. 2018-07-05Public NoticePN Violation for NPDWR ViolationBack in compliance
  20. 2018-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 88.00 UG/L · limit 80.00 UG/LBack in compliance
  21. 2018-04-10Public NoticePN Violation for NPDWR ViolationBack in compliance
  22. 2018-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 81.00 UG/L · limit 80.00 UG/LBack in compliance
  23. 2018-02-03Public NoticePN Violation for NPDWR ViolationBack in compliance
  24. 2018-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 86.00 UG/L · limit 80.00 UG/LBack in compliance
  25. 2017-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 86.00 UG/L · limit 80.00 UG/LBack in compliance
Show the other 29 entries
  1. 2017-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  2. 2017-07-31Trihalomethanes (TTHM)Failure Submit IDSE/Subpart V Plan RptBack in compliance
  3. 2017-07-21Public NoticePN Violation for NPDWR ViolationBack in compliance
  4. 2017-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  5. 2017-05-07Public NoticePN Violation for NPDWR ViolationBack in compliance
  6. 2017-05-01Trihalomethanes (TTHM)Failure Submit IDSE/Subpart V Plan RptBack in compliance
  7. 2017-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 95.00 UG/L · limit 80.00 UG/LBack in compliance
  8. 2016-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  9. 2016-09-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  10. 2016-09-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  11. 2016-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  12. 2016-05-14Lead and Copper RuleLead Consumer NoticeBack in compliance
  13. 2016-02-23Public NoticePN Violation for NPDWR ViolationBack in compliance
  14. 2015-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  15. 2015-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  16. 2015-02-16Public NoticePN Violation for NPDWR ViolationBack in compliance
  17. 2014-08-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  18. 2014-08-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  19. 2014-03-03Public NoticePN Violation for NPDWR ViolationBack in compliance
  20. 2013-08-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  21. 2013-08-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  22. 2013-01-01Dbp Stage 2Failure Submit IDSE/Subpart V Plan RptBack in compliance
  23. 2013-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  24. 2013-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  25. 2011-07-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  26. 2011-07-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  27. 2010-07-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  28. 2010-07-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  29. 2004-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance

System details

Population served270
Service connections90
Water sourceGroundwater
System typeCommunity Water System
OwnerPrivate
StatusActive
CityDoyline
EPA ZIP on file71023

Areas served

  • Webster Parish

Reading this record

Horse Shoe Road Water System is a community water system that draws from groundwater and serves about 270 people in Doyline, 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.