Community Water System · PWSID TX2020054

Timberlane Water System

Serves 117 peopleGroundwaterOwner: PrivateDes Peres, Missouri
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 2001: 49 violations. 3 over the limit · 26 missed or late tests · 20 notices or reports. Most recent began 2025-09-01.

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

3Over the limit
0Treatment lapse
26Missed or late test1 open
20Notice or report

More violations on record than 96% of active water systems in Missouri. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

2001 · Notice or report: 120052009 · Notice or report: 22009 · Notice or report: 220102011 · Missed or late test: 12011 · Notice or report: 22011 · Notice or report: 22012 · Missed or late test: 12012 · Notice or report: 22012 · Notice or report: 22013 · Missed or late test: 12014 · Missed or late test: 12015 · Missed or late test: 120152016 · Missed or late test: 32016 · Missed or late test: 32016 · Missed or late test: 32016 · Notice or report: 22016 · Notice or report: 22017 · Missed or late test: 32017 · Missed or late test: 32017 · Missed or late test: 32019 · Notice or report: 12020 · Missed or late test: 32020 · Missed or late test: 32020 · Missed or late test: 320202021 · Missed or late test: 52021 · Missed or late test: 52021 · Missed or late test: 52021 · Missed or late test: 52021 · Missed or late test: 52021 · Notice or report: 22021 · Notice or report: 22022 · Missed or late test: 32022 · Missed or late test: 32022 · Missed or late test: 32022 · Notice or report: 52022 · Notice or report: 52022 · Notice or report: 52022 · Notice or report: 52022 · Notice or report: 52023 · Notice or report: 22023 · Notice or report: 22024 · Missed or late test: 32024 · Missed or late test: 32024 · Missed or late test: 32024 · Notice or report: 12025 · Over the limit: 32025 · Over the limit: 32025 · Over the limit: 32025 · Missed or late test: 12025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
6% over the limit · 353% missed or late test · 2641% notice or report · 20

Across Missouri, 54% of violations are missed or late tests and 8% are water over a limit.

How far over the limit

at the limit2×5×10×100×+Trihalomethanes (TTHM)2025-07-01 · Trihalomethanes (TTHM): measured 0.1180 MG/L vs limit 0.0800 MG/L (1.5×)2025-04-01 · Trihalomethanes (TTHM): measured 0.1120 MG/L vs limit 0.0800 MG/L (1.4×)2025-01-01 · Trihalomethanes (TTHM): measured 0.0860 MG/L vs limit 0.0800 MG/L (1.1×)
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

0.26 ppb
0 ppb

Open now (1)

  1. 2025-09-01Trihalomethanes (TTHM)Failure Submit IDSE/Subpart V Plan RptOpen

Every violation on record

  1. 2025-09-01Trihalomethanes (TTHM)Failure Submit IDSE/Subpart V Plan RptOpen
  2. 2025-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1180 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  3. 2025-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1120 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  4. 2025-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0860 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  5. 2024-08-01Revised Total Coliform RuleMONBack in compliance
  6. 2024-07-02Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  7. 2024-07-01Revised Total Coliform RuleMONBack in compliance
  8. 2024-05-01Revised Total Coliform RuleMONBack in compliance
  9. 2023-04-01Public Notice ×2PN Violation for NPDWR ViolationBack in compliance
  10. 2022-12-30Lead and Copper RuleLead Consumer NoticeBack in compliance
  11. 2022-10-15Public NoticePN Violation for NPDWR ViolationBack in compliance
  12. 2022-09-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  13. 2022-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  14. 2022-06-25Public NoticePN Violation for NPDWR ViolationBack in compliance
  15. 2022-03-01Revised Total Coliform RuleMONBack in compliance
  16. 2022-01-30Public NoticePN Violation for NPDWR ViolationBack in compliance
  17. 2022-01-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  18. 2021-12-30Lead and Copper RuleLead Consumer NoticeBack in compliance
  19. 2021-11-25Public NoticePN Violation for NPDWR ViolationBack in compliance
  20. 2021-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  21. 2021-09-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  22. 2021-08-01Revised Total Coliform RuleMONBack in compliance
  23. 2021-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  24. 2021-01-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  25. 2020-10-01E. ColiMonitoring, Source Water (GWR)Back in compliance
Show the other 21 entries
  1. 2020-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  2. 2020-08-01Revised Total Coliform RuleMONBack in compliance
  3. 2019-01-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  4. 2017-12-30Lead and Copper RuleLead Consumer NoticeBack in compliance
  5. 2017-12-01Revised Total Coliform RuleMONBack in compliance
  6. 2017-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  7. 2016-12-30Lead and Copper RuleLead Consumer NoticeBack in compliance
  8. 2016-10-20Public NoticePN Violation for NPDWR ViolationBack in compliance
  9. 2016-07-11Public NoticePN Violation for NPDWR ViolationBack in compliance
  10. 2016-03-01E. ColiMonitoring, Source Water (GWR)Back in compliance
  11. 2016-03-01Coliform (TCR)Monitoring, Repeat Major (TCR)Back in compliance
  12. 2015-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  13. 2014-12-30Lead and Copper RuleLead Consumer NoticeBack in compliance
  14. 2013-12-30Lead and Copper RuleLead Consumer NoticeBack in compliance
  15. 2012-09-10Public Notice ×2PN Violation for NPDWR ViolationBack in compliance
  16. 2012-05-01E. ColiMonitoring, Source Water (GWR)Back in compliance
  17. 2011-03-01Public Notice ×2PN Violation for NPDWR ViolationBack in compliance
  18. 2011-03-01E. ColiMonitoring, Source Water (GWR)Back in compliance
  19. 2009-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  20. 2009-01-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  21. 2001-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance

System details

Population served117
Service connections46
Water sourceGroundwater
System typeCommunity Water System
OwnerPrivate
StatusActive
CityDes Peres
EPA ZIP on file63131-1871

Areas served

  • Sabine County

Reading this record

Timberlane Water System is a community water system that draws from groundwater and serves about 117 people in Des Peres, Missouri. 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.