Community Water System · PWSID TX0200038

Treasure Island Mud

Serves 951 peopleSurface Water PurchasedOwner: Local GovernmentFreeport, Texas
Nothing open right now.

On record since 2010: 48 violations. 27 over the limit · 12 missed or late tests · 9 notices or reports. 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.

27Over the limit
0Treatment lapse
12Missed or late test
9Notice or report

More violations on record than 90% of active water systems in Texas. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

20052010 · Notice or report: 22010 · Notice or report: 220102014 · Over the limit: 22014 · Over the limit: 22015 · Over the limit: 52015 · Over the limit: 52015 · Over the limit: 52015 · Over the limit: 52015 · Over the limit: 52015 · Missed or late test: 120152016 · Over the limit: 52016 · Over the limit: 52016 · Over the limit: 52016 · Over the limit: 52016 · Over the limit: 52016 · Missed or late test: 12017 · Over the limit: 42017 · Over the limit: 42017 · Over the limit: 42017 · Over the limit: 42017 · Missed or late test: 12018 · Over the limit: 12019 · Over the limit: 22019 · Over the limit: 22019 · Notice or report: 12020 · Over the limit: 12020 · Missed or late test: 22020 · Missed or late test: 220202021 · Missed or late test: 22021 · Missed or late test: 22021 · Notice or report: 22021 · Notice or report: 22022 · Over the limit: 32022 · Over the limit: 32022 · Over the limit: 32022 · Missed or late test: 52022 · Missed or late test: 52022 · Missed or late test: 52022 · Missed or late test: 52022 · Missed or late test: 52022 · Notice or report: 32022 · Notice or report: 32022 · Notice or report: 32023 · Over the limit: 22023 · Over the limit: 22023 · Notice or report: 12025 · Over the limit: 22025 · Over the limit: 22025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
56% over the limit · 2725% missed or late test · 1219% notice or report · 9

Across Texas, 60% of violations are missed or late tests and 10% are water over a limit.

How far over the limit

at the limit2×5×10×100×+Trihalomethanes (TTHM)2025-07-01 · Trihalomethanes (TTHM): measured 0.0810 MG/L vs limit 0.0800 MG/L (1.0×)2025-04-01 · Trihalomethanes (TTHM): measured 0.0840 MG/L vs limit 0.0800 MG/L (1.1×)2023-04-01 · Trihalomethanes (TTHM): measured 0.0900 MG/L vs limit 0.0800 MG/L (1.1×)2023-01-01 · Trihalomethanes (TTHM): measured 0.1160 MG/L vs limit 0.0800 MG/L (1.4×)2022-10-01 · Trihalomethanes (TTHM): measured 0.1160 MG/L vs limit 0.0800 MG/L (1.4×)2022-07-01 · Trihalomethanes (TTHM): measured 0.1140 MG/L vs limit 0.0800 MG/L (1.4×)2022-04-01 · Trihalomethanes (TTHM): measured 0.0950 MG/L vs limit 0.0800 MG/L (1.2×)2020-01-01 · Trihalomethanes (TTHM): measured 0.0950 MG/L vs limit 0.0800 MG/L (1.2×)2019-10-01 · Trihalomethanes (TTHM): measured 0.0900 MG/L vs limit 0.0800 MG/L (1.1×)2019-07-01 · Trihalomethanes (TTHM): measured 0.0840 MG/L vs limit 0.0800 MG/L (1.1×)2018-01-01 · Trihalomethanes (TTHM): measured 0.0950 MG/L vs limit 0.0800 MG/L (1.2×)2017-10-01 · Trihalomethanes (TTHM): measured 0.0940 MG/L vs limit 0.0800 MG/L (1.2×)2017-07-01 · Trihalomethanes (TTHM): measured 0.0840 MG/L vs limit 0.0800 MG/L (1.1×)2017-07-01 · Trihalomethanes (TTHM): measured 0.0880 MG/L vs limit 0.0800 MG/L (1.1×)2017-01-01 · Trihalomethanes (TTHM): measured 0.0820 MG/L vs limit 0.0800 MG/L (1.0×)2016-07-01 · Trihalomethanes (TTHM): measured 0.0890 MG/L vs limit 0.0800 MG/L (1.1×)2016-07-01 · Trihalomethanes (TTHM): measured 0.0880 MG/L vs limit 0.0800 MG/L (1.1×)2016-04-01 · Trihalomethanes (TTHM): measured 0.0840 MG/L vs limit 0.0800 MG/L (1.1×)2016-01-01 · Trihalomethanes (TTHM): measured 0.0990 MG/L vs limit 0.0800 MG/L (1.2×)2016-01-01 · Trihalomethanes (TTHM): measured 0.0950 MG/L vs limit 0.0800 MG/L (1.2×)2015-10-01 · Trihalomethanes (TTHM): measured 0.0900 MG/L vs limit 0.0800 MG/L (1.1×)2015-10-01 · Trihalomethanes (TTHM): measured 0.0940 MG/L vs limit 0.0800 MG/L (1.2×)2015-07-01 · Trihalomethanes (TTHM): measured 0.1000 MG/L vs limit 0.0800 MG/L (1.2×)2015-04-01 · Trihalomethanes (TTHM): measured 0.1160 MG/L vs limit 0.0800 MG/L (1.4×)2015-01-01 · Trihalomethanes (TTHM): measured 0.0930 MG/L vs limit 0.0800 MG/L (1.2×)2014-10-01 · Trihalomethanes (TTHM): measured 0.0920 MG/L vs limit 0.0800 MG/L (1.1×)2014-07-01 · Trihalomethanes (TTHM): measured 0.0810 MG/L vs limit 0.0800 MG/L (1.0×)
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 2 results on file · action level 15 ppb

1 ppb
0.54 ppb

Every violation on record

  1. 2025-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0810 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  2. 2025-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0840 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  3. 2023-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0900 MG/L · limit 0.0800 MG/LBack in compliance
  4. 2023-01-11Public NoticePN Violation for NPDWR ViolationBack in compliance
  5. 2023-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1160 MG/L · limit 0.0800 MG/LBack in compliance
  6. 2022-10-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  7. 2022-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1160 MG/L · limit 0.0800 MG/LBack in compliance
  8. 2022-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  9. 2022-08-21Public NoticePN Violation for NPDWR ViolationBack in compliance
  10. 2022-08-16Total Haloacetic Acids (HAA5)Failure Submit IDSE/Subpart V Plan RptBack in compliance
  11. 2022-08-16Trihalomethanes (TTHM)Failure Submit IDSE/Subpart V Plan RptBack in compliance
  12. 2022-07-15Public NoticePN Violation for NPDWR ViolationBack in compliance
  13. 2022-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1140 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  14. 2022-04-03Public NoticePN Violation for NPDWR ViolationBack in compliance
  15. 2022-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  16. 2022-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0950 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  17. 2021-12-19Public NoticePN Violation for NPDWR ViolationBack in compliance
  18. 2021-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  19. 2021-04-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  20. 2021-04-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  21. 2020-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  22. 2020-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  23. 2020-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0950 MG/L · limit 0.0800 MG/LBack in compliance
  24. 2019-10-27Public NoticePN Violation for NPDWR ViolationBack in compliance
  25. 2019-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0900 MG/L · limit 0.0800 MG/LBack in compliance
Show the other 19 entries
  1. 2019-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0840 MG/L · limit 0.0800 MG/LBack in compliance
  2. 2018-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0950 MG/L · limit 0.0800 MG/LBack in compliance
  3. 2017-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  4. 2017-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0940 MG/L · limit 0.0800 MG/LBack in compliance
  5. 2017-07-01Trihalomethanes (TTHM) ×2MCL, Averagemeasured 0.0840 MG/L · limit 0.0800 MG/LBack in compliance
  6. 2017-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0820 MG/L · limit 0.0800 MG/LBack in compliance
  7. 2016-12-30Lead and Copper RuleLead Consumer NoticeBack in compliance
  8. 2016-07-01Trihalomethanes (TTHM) ×2MCL, Averagemeasured 0.0890 MG/L · limit 0.0800 MG/LBack in compliance
  9. 2016-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0840 MG/L · limit 0.0800 MG/LBack in compliance
  10. 2016-01-01Trihalomethanes (TTHM) ×2MCL, Averagemeasured 0.0990 MG/L · limit 0.0800 MG/LBack in compliance
  11. 2015-10-01Trihalomethanes (TTHM) ×2MCL, Averagemeasured 0.0900 MG/L · limit 0.0800 MG/LBack in compliance
  12. 2015-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  13. 2015-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1000 MG/L · limit 0.0800 MG/LBack in compliance
  14. 2015-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1160 MG/L · limit 0.0800 MG/LBack in compliance
  15. 2015-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0930 MG/L · limit 0.0800 MG/LBack in compliance
  16. 2014-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0920 MG/L · limit 0.0800 MG/LBack in compliance
  17. 2014-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0810 MG/L · limit 0.0800 MG/LBack in compliance
  18. 2010-07-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  19. 2010-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance

System details

Population served951
Service connections317
Water sourceSurface Water Purchased
System typeCommunity Water System
OwnerLocal Government
StatusActive
CityFreeport
EPA ZIP on file77541-7271

Areas served

  • Brazoria County

Reading this record

Treasure Island Mud is a community water system that draws from surface water purchased and serves about 951 people in Freeport, Texas. 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.