Community Water System · PWSID AZ0414080

Cs Tierra Mesa Estates Water Company

Serves 632 peopleGroundwaterOwner: PrivateDes Peres, Missouri
Nothing open right now.

On record since 2002: 66 violations. 19 over the limit · 19 missed or late tests · 28 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.

19Over the limit
0Treatment lapse
19Missed or late test
28Notice or report

More violations on record than 97% 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

2002 · Notice or report: 12003 · Notice or report: 12004 · Notice or report: 12005 · Notice or report: 120052006 · Missed or late test: 12006 · Notice or report: 12008 · Notice or report: 12009 · Notice or report: 120102011 · Notice or report: 22011 · Notice or report: 22012 · Notice or report: 22012 · Notice or report: 22013 · Notice or report: 22013 · Notice or report: 22014 · Missed or late test: 120152016 · Missed or late test: 22016 · Missed or late test: 22017 · Notice or report: 12018 · Missed or late test: 32018 · Missed or late test: 32018 · Missed or late test: 32018 · Notice or report: 12019 · Missed or late test: 22019 · Missed or late test: 22020 · Over the limit: 12020 · Missed or late test: 32020 · Missed or late test: 32020 · Missed or late test: 32020 · Notice or report: 32020 · Notice or report: 32020 · Notice or report: 320202021 · Over the limit: 42021 · Over the limit: 42021 · Over the limit: 42021 · Over the limit: 42021 · Missed or late test: 22021 · Missed or late test: 22021 · Notice or report: 32021 · Notice or report: 32021 · Notice or report: 32022 · Over the limit: 42022 · Over the limit: 42022 · Over the limit: 42022 · Over the limit: 42022 · Missed or late test: 12022 · Notice or report: 22022 · Notice or report: 22023 · Over the limit: 42023 · Over the limit: 42023 · Over the limit: 42023 · Over the limit: 42023 · Notice or report: 12024 · Over the limit: 32024 · Over the limit: 32024 · Over the limit: 32024 · 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 · Notice or report: 32025 · Notice or report: 32025 · Notice or report: 32025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
29% over the limit · 1929% missed or late test · 1942% notice or report · 28

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×+Combined Uranium2025-07-01 · Combined Uranium: measured 38.00 UG/L vs limit 30.00 UG/L (1.3×)2025-04-01 · Combined Uranium: measured 39.00 UG/L vs limit 30.00 UG/L (1.3×)2025-01-01 · Combined Uranium: measured 44.00 UG/L vs limit 30.00 UG/L (1.5×)2024-07-01 · Combined Uranium: measured 42.00 UG/L vs limit 30.00 UG/L (1.4×)2024-04-01 · Combined Uranium: measured 44.00 UG/L vs limit 30.00 UG/L (1.5×)2024-01-01 · Combined Uranium: measured 40.00 UG/L vs limit 30.00 UG/L (1.3×)2023-10-01 · Combined Uranium: measured 43.00 UG/L vs limit 30.00 UG/L (1.4×)2023-07-01 · Combined Uranium: measured 43.00 UG/L vs limit 30.00 UG/L (1.4×)2023-04-01 · Combined Uranium: measured 42.00 UG/L vs limit 30.00 UG/L (1.4×)2023-01-01 · Combined Uranium: measured 43.00 UG/L vs limit 30.00 UG/L (1.4×)2022-10-01 · Combined Uranium: measured 43.00 UG/L vs limit 30.00 UG/L (1.4×)2022-07-01 · Combined Uranium: measured 42.00 UG/L vs limit 30.00 UG/L (1.4×)2022-04-01 · Combined Uranium: measured 43.00 UG/L vs limit 30.00 UG/L (1.4×)2022-01-01 · Combined Uranium: measured 39.00 UG/L vs limit 30.00 UG/L (1.3×)2021-10-01 · Combined Uranium: measured 35.00 UG/L vs limit 30.00 UG/L (1.2×)2021-07-01 · Combined Uranium: measured 34.00 UG/L vs limit 30.00 UG/L (1.1×)2021-04-01 · Combined Uranium: measured 35.00 UG/L vs limit 30.00 UG/L (1.2×)2021-01-01 · Combined Uranium: measured 33.00 UG/L vs limit 30.00 UG/L (1.1×)2020-07-01 · Combined Uranium: measured 35.00 UG/L vs limit 30.00 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 11 results on file · action level 15 ppb

11 ppb
0 ppb
0 ppb
0 ppb
0 ppb
0 ppb
0 ppb
0 ppb
0 ppb
0 ppb
0 ppb

Every violation on record

  1. 2025-07-01Combined UraniumMCL, Averagemeasured 38.00 UG/L · limit 30.00 UG/LPeriod ended · no return to compliance on file
  2. 2025-06-28Public Notice ×2PN Violation for NPDWR ViolationBack in compliance
  3. 2025-04-01Combined UraniumMCL, Averagemeasured 39.00 UG/L · limit 30.00 UG/LPeriod ended · no return to compliance on file
  4. 2025-02-20Public NoticePN Violation for NPDWR ViolationBack in compliance
  5. 2025-01-01Combined UraniumMCL, Averagemeasured 44.00 UG/L · limit 30.00 UG/LPeriod ended · no return to compliance on file
  6. 2025-01-01Combined UraniumMonitoring, RegularPeriod ended · no return to compliance on file
  7. 2024-11-09Public NoticePN Violation for NPDWR ViolationBack in compliance
  8. 2024-10-01Combined UraniumMonitoring, RegularBack in compliance
  9. 2024-07-01Combined UraniumMCL, Averagemeasured 42.00 UG/L · limit 30.00 UG/LPeriod ended · no return to compliance on file
  10. 2024-04-01Combined UraniumMCL, Averagemeasured 44.00 UG/L · limit 30.00 UG/LPeriod ended · no return to compliance on file
  11. 2024-01-01Combined UraniumMonitoring, RegularBack in compliance
  12. 2024-01-01Combined UraniumMCL, Averagemeasured 40.00 UG/L · limit 30.00 UG/LPeriod ended · no return to compliance on file
  13. 2024-01-01Revised Total Coliform RuleMONBack in compliance
  14. 2023-10-01Combined UraniumMCL, Averagemeasured 43.00 UG/L · limit 30.00 UG/LPeriod ended · no return to compliance on file
  15. 2023-07-01Combined UraniumMCL, Averagemeasured 43.00 UG/L · limit 30.00 UG/LPeriod ended · no return to compliance on file
  16. 2023-04-29Public NoticePN Violation for NPDWR ViolationBack in compliance
  17. 2023-04-01Combined UraniumMCL, Averagemeasured 42.00 UG/L · limit 30.00 UG/LPeriod ended · no return to compliance on file
  18. 2023-01-01Combined UraniumMCL, Averagemeasured 43.00 UG/L · limit 30.00 UG/LPeriod ended · no return to compliance on file
  19. 2022-10-24Public NoticePN Violation for NPDWR ViolationBack in compliance
  20. 2022-10-01Lead and Copper RuleLead Consumer NoticeBack in compliance
  21. 2022-10-01Combined UraniumMCL, Averagemeasured 43.00 UG/L · limit 30.00 UG/LPeriod ended · no return to compliance on file
  22. 2022-07-23Public NoticePN Violation for NPDWR ViolationBack in compliance
  23. 2022-07-01Combined UraniumMCL, Averagemeasured 42.00 UG/L · limit 30.00 UG/LPeriod ended · no return to compliance on file
  24. 2022-04-01Combined UraniumMCL, Averagemeasured 43.00 UG/L · limit 30.00 UG/LPeriod ended · no return to compliance on file
  25. 2022-01-01Combined UraniumMCL, Averagemeasured 39.00 UG/L · limit 30.00 UG/LPeriod ended · no return to compliance on file
Show the other 40 entries
  1. 2021-10-01Combined UraniumMCL, Averagemeasured 35.00 UG/L · limit 30.00 UG/LPeriod ended · no return to compliance on file
  2. 2021-10-01Lead and Copper RuleLead Consumer NoticeBack in compliance
  3. 2021-09-11Public NoticePN Violation for NPDWR ViolationBack in compliance
  4. 2021-07-01Combined UraniumMCL, Averagemeasured 34.00 UG/L · limit 30.00 UG/LPeriod ended · no return to compliance on file
  5. 2021-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  6. 2021-04-03Lead and Copper RuleLead Consumer NoticeBack in compliance
  7. 2021-04-01Combined UraniumMCL, Averagemeasured 35.00 UG/L · limit 30.00 UG/LPeriod ended · no return to compliance on file
  8. 2021-02-27Public NoticePN Violation for NPDWR ViolationBack in compliance
  9. 2021-01-01Combined UraniumMCL, Averagemeasured 33.00 UG/L · limit 30.00 UG/LPeriod ended · no return to compliance on file
  10. 2020-10-01Combined UraniumMonitoring, RegularBack in compliance
  11. 2020-08-23Public NoticePN Violation for NPDWR ViolationBack in compliance
  12. 2020-08-05Public NoticePN Violation for NPDWR ViolationBack in compliance
  13. 2020-08-01Revised Total Coliform RuleMONBack in compliance
  14. 2020-07-01Combined UraniumMCL, Averagemeasured 35.00 UG/L · limit 30.00 UG/LPeriod ended · no return to compliance on file
  15. 2020-02-22Public NoticePN Violation for NPDWR ViolationBack in compliance
  16. 2020-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  17. 2019-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  18. 2019-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  19. 2018-10-01Revised Total Coliform RuleRPTBack in compliance
  20. 2018-10-01Lead and Copper RuleLead Consumer NoticeBack in compliance
  21. 2018-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  22. 2018-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  23. 2017-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  24. 2016-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  25. 2016-06-29E. ColiMonitoring, Source Water (GWR)Back in compliance
  26. 2014-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  27. 2013-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  28. 2013-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  29. 2012-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  30. 2012-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  31. 2011-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  32. 2011-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  33. 2009-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  34. 2008-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  35. 2006-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  36. 2006-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  37. 2005-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  38. 2004-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  39. 2003-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  40. 2002-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance

System details

Population served632
Service connections247
Water sourceGroundwater
System typeCommunity Water System
OwnerPrivate
StatusActive
CityDes Peres
EPA ZIP on file63131

Areas served

  • Yuma, Yuma County

Reading this record

Cs Tierra Mesa Estates Water Company is a community water system that draws from groundwater and serves about 632 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.