Community Water System · PWSID TX1630037

Ville Dalsace Water Supply

Serves 597 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: 76 violations. 60 missed or late tests · 16 notices or reports. Most recent began 2024-07-02.

None of them is a measurement of contaminated water.

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

0Over the limit
0Treatment lapse
60Missed or late test1 open
16Notice or report

More violations on record than 98% 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: 12003 · Notice or report: 82003 · Notice or report: 82004 · Notice or report: 12005 · Notice or report: 1200520102011 · Missed or late test: 12014 · Missed or late test: 120152016 · Missed or late test: 12020 · Missed or late test: 120202021 · Missed or late test: 32021 · Notice or report: 12022 · Missed or late test: 42022 · Notice or report: 22023 · Missed or late test: 12023 · Notice or report: 12024 · Missed or late test: 482024 · Missed or late test: 482024 · Missed or late test: 482024 · Missed or late test: 482024 · Missed or late test: 482024 · Missed or late test: 482024 · Missed or late test: 482024 · Missed or late test: 482024 · Missed or late test: 482024 · Missed or late test: 482024 · Notice or report: 12025
One square ≈ 5 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
79% missed or late test · 6021% notice or report · 16

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

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

7.9 ppb
5.6 ppb
2 ppb

Open now (1)

  1. 2021-12-30Lead and Copper RuleLead Consumer NoticeOpen

Every violation on record

  1. 2024-07-02Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  2. 2024-07-01ChlordaneMonitoring, RegularPeriod ended · no return to compliance on file
  3. 2024-07-01PentachlorophenolMonitoring, RegularPeriod ended · no return to compliance on file
  4. 2024-07-01Benzo(a)pyreneMonitoring, RegularPeriod ended · no return to compliance on file
  5. 2024-07-01HexachlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  6. 2024-07-01Heptachlor epoxideMonitoring, RegularPeriod ended · no return to compliance on file
  7. 2024-07-01HeptachlorMonitoring, RegularPeriod ended · no return to compliance on file
  8. 2024-07-01LassoMonitoring, RegularPeriod ended · no return to compliance on file
  9. 2024-07-01AtrazineMonitoring, RegularPeriod ended · no return to compliance on file
  10. 2024-07-01HexachlorocyclopentadieneMonitoring, RegularPeriod ended · no return to compliance on file
  11. 2024-07-01Di(2-ethylhexyl) phthalateMonitoring, RegularPeriod ended · no return to compliance on file
  12. 2024-07-01SimazineMonitoring, RegularPeriod ended · no return to compliance on file
  13. 2024-07-01Di(2-ethylhexyl) adipateMonitoring, RegularPeriod ended · no return to compliance on file
  14. 2024-07-01ToxapheneMonitoring, RegularPeriod ended · no return to compliance on file
  15. 2024-07-01MethoxychlorMonitoring, RegularPeriod ended · no return to compliance on file
  16. 2024-07-01Bhc-GammaMonitoring, RegularPeriod ended · no return to compliance on file
  17. 2024-07-01EndrinMonitoring, RegularPeriod ended · no return to compliance on file
  18. 2024-04-01ChlordaneMonitoring, RegularPeriod ended · no return to compliance on file
  19. 2024-04-01PentachlorophenolMonitoring, RegularPeriod ended · no return to compliance on file
  20. 2024-04-01Benzo(a)pyreneMonitoring, RegularPeriod ended · no return to compliance on file
  21. 2024-04-01HexachlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  22. 2024-04-01Heptachlor epoxideMonitoring, RegularPeriod ended · no return to compliance on file
  23. 2024-04-01HeptachlorMonitoring, RegularPeriod ended · no return to compliance on file
  24. 2024-04-01LassoMonitoring, RegularPeriod ended · no return to compliance on file
  25. 2024-04-01AtrazineMonitoring, RegularPeriod ended · no return to compliance on file
Show the other 51 entries
  1. 2024-04-01HexachlorocyclopentadieneMonitoring, RegularPeriod ended · no return to compliance on file
  2. 2024-04-01Di(2-ethylhexyl) phthalateMonitoring, RegularPeriod ended · no return to compliance on file
  3. 2024-04-01SimazineMonitoring, RegularPeriod ended · no return to compliance on file
  4. 2024-04-01Di(2-ethylhexyl) adipateMonitoring, RegularPeriod ended · no return to compliance on file
  5. 2024-04-01ToxapheneMonitoring, RegularPeriod ended · no return to compliance on file
  6. 2024-04-01MethoxychlorMonitoring, RegularPeriod ended · no return to compliance on file
  7. 2024-04-01Bhc-GammaMonitoring, RegularPeriod ended · no return to compliance on file
  8. 2024-04-01EndrinMonitoring, RegularPeriod ended · no return to compliance on file
  9. 2024-01-01ChlordaneMonitoring, RegularPeriod ended · no return to compliance on file
  10. 2024-01-01PentachlorophenolMonitoring, RegularPeriod ended · no return to compliance on file
  11. 2024-01-01Benzo(a)pyreneMonitoring, RegularPeriod ended · no return to compliance on file
  12. 2024-01-01HexachlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  13. 2024-01-01Heptachlor epoxideMonitoring, RegularPeriod ended · no return to compliance on file
  14. 2024-01-01HeptachlorMonitoring, RegularPeriod ended · no return to compliance on file
  15. 2024-01-01LassoMonitoring, RegularPeriod ended · no return to compliance on file
  16. 2024-01-01AtrazineMonitoring, RegularPeriod ended · no return to compliance on file
  17. 2024-01-01HexachlorocyclopentadieneMonitoring, RegularPeriod ended · no return to compliance on file
  18. 2024-01-01Di(2-ethylhexyl) phthalateMonitoring, RegularPeriod ended · no return to compliance on file
  19. 2024-01-01SimazineMonitoring, RegularPeriod ended · no return to compliance on file
  20. 2024-01-01Di(2-ethylhexyl) adipateMonitoring, RegularPeriod ended · no return to compliance on file
  21. 2024-01-01ToxapheneMonitoring, RegularPeriod ended · no return to compliance on file
  22. 2024-01-01MethoxychlorMonitoring, RegularPeriod ended · no return to compliance on file
  23. 2024-01-01Bhc-GammaMonitoring, RegularPeriod ended · no return to compliance on file
  24. 2024-01-01EndrinMonitoring, RegularPeriod ended · no return to compliance on file
  25. 2023-12-31Public NoticePN Violation for NPDWR ViolationBack in compliance
  26. 2023-01-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  27. 2022-12-19Public NoticePN Violation for NPDWR ViolationBack in compliance
  28. 2022-10-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  29. 2022-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  30. 2022-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  31. 2022-01-30Public NoticePN Violation for NPDWR ViolationBack in compliance
  32. 2022-01-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  33. 2021-12-30Lead and Copper RuleLead Consumer NoticeOpen
  34. 2021-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  35. 2021-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  36. 2021-07-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  37. 2020-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  38. 2016-12-30Lead and Copper RuleLead Consumer NoticeBack in compliance
  39. 2014-01-01Lead and Copper RuleLead Consumer NoticeBack in compliance
  40. 2011-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  41. 2005-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  42. 2004-01-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  43. 2003-09-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  44. 2003-08-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  45. 2003-07-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  46. 2003-06-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  47. 2003-05-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  48. 2003-04-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  49. 2003-03-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  50. 2003-02-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  51. 2001-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance

System details

Population served597
Service connections199
Water sourceGroundwater
System typeCommunity Water System
OwnerPrivate
StatusActive
CityDes Peres
EPA ZIP on file63131-1871

Areas served

  • Medina County

Reading this record

Ville Dalsace Water Supply is a community water system that draws from groundwater and serves about 597 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.