Community Water System · PWSID AZ0413038

Cs Lake Verde Water Company

Serves 169 peopleGroundwaterOwner: Public/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 2002: 84 violations. 28 over the limit · 36 missed or late tests · 20 notices or reports. Most recent began 2025-01-01.

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

28Over the limit
0Treatment lapse
36Missed or late test1 open
20Notice 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

2002 · Notice or report: 12003 · Notice or report: 12004 · Notice or report: 12005 · Missed or late test: 12005 · Notice or report: 120052006 · Notice or report: 12007 · Over the limit: 12007 · Notice or report: 12008 · Over the limit: 42008 · Over the limit: 42009 · Over the limit: 42009 · Over the limit: 42009 · Missed or late test: 12009 · Notice or report: 12010 · Over the limit: 42010 · Over the limit: 420102011 · Over the limit: 22011 · Missed or late test: 32011 · Missed or late test: 32011 · Notice or report: 22012 · Over the limit: 52012 · Over the limit: 52012 · Over the limit: 52012 · Notice or report: 22013 · Over the limit: 12013 · Notice or report: 22014 · Missed or late test: 12014 · Notice or report: 22015 · Over the limit: 22015 · Missed or late test: 32015 · Missed or late test: 320152016 · Over the limit: 22016 · Missed or late test: 102016 · Missed or late test: 102016 · Missed or late test: 102016 · Missed or late test: 102016 · Missed or late test: 102016 · Notice or report: 22017 · Over the limit: 32017 · Over the limit: 32017 · Missed or late test: 42017 · Missed or late test: 42017 · Notice or report: 12018 · Missed or late test: 12019 · Missed or late test: 12020 · Missed or late test: 120202021 · Missed or late test: 22021 · Notice or report: 22023 · Missed or late test: 62023 · Missed or late test: 62023 · Missed or late test: 62024 · Missed or late test: 12025 · Missed or late test: 12025
One square ≈ 2 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
33% over the limit · 2843% missed or late test · 3624% 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×+Arsenic2017-07-01 · Arsenic: measured 0.0130 MG/L vs limit 0.0100 MG/L (1.3×)2017-04-01 · Arsenic: measured 0.0170 MG/L vs limit 0.0100 MG/L (1.7×)2017-01-01 · Arsenic: measured 0.0260 MG/L vs limit 0.0100 MG/L (2.6×)2016-10-01 · Arsenic: measured 0.0250 MG/L vs limit 0.0100 MG/L (2.5×)2016-01-01 · Arsenic: measured 0.0150 MG/L vs limit 0.0100 MG/L (1.5×)2015-10-01 · Arsenic: measured 0.0150 MG/L vs limit 0.0100 MG/L (1.5×)2013-04-01 · Arsenic: measured 0.0125 MG/L vs limit 0.0100 MG/L (1.2×)2012-10-01 · Arsenic: measured 0.0250 MG/L vs limit 0.0100 MG/L (2.5×)2012-07-01 · Arsenic: measured 0.0250 MG/L vs limit 0.0100 MG/L (2.5×)2012-04-01 · Arsenic: measured 0.0250 MG/L vs limit 0.0100 MG/L (2.5×)2012-04-01 · Arsenic: measured 0.0130 MG/L vs limit 0.0100 MG/L (1.3×)2012-01-01 · Arsenic: measured 0.0250 MG/L vs limit 0.0100 MG/L (2.5×)2011-04-01 · Arsenic: measured 0.0250 MG/L vs limit 0.0100 MG/L (2.5×)2011-01-01 · Arsenic: measured 0.0260 MG/L vs limit 0.0100 MG/L (2.6×)2010-10-01 · Arsenic: measured 0.0250 MG/L vs limit 0.0100 MG/L (2.5×)2010-07-01 · Arsenic: measured 0.0240 MG/L vs limit 0.0100 MG/L (2.4×)2010-04-01 · Arsenic: measured 0.0240 MG/L vs limit 0.0100 MG/L (2.4×)2010-01-01 · Arsenic: measured 0.0230 MG/L vs limit 0.0100 MG/L (2.3×)2009-10-01 · Arsenic: measured 0.0230 MG/L vs limit 0.0100 MG/L (2.3×)2009-07-01 · Arsenic: measured 0.0230 MG/L vs limit 0.0100 MG/L (2.3×)2009-04-01 · Arsenic: measured 0.0230 MG/L vs limit 0.0100 MG/L (2.3×)2009-01-01 · Arsenic: measured 0.0250 MG/L vs limit 0.0100 MG/L (2.5×)2008-10-01 · Arsenic: measured 0.0260 MG/L vs limit 0.0100 MG/L (2.6×)2008-07-01 · Arsenic: measured 0.0260 MG/L vs limit 0.0100 MG/L (2.6×)2008-04-01 · Arsenic: measured 0.0280 MG/L vs limit 0.0100 MG/L (2.8×)2008-01-01 · Arsenic: measured 0.0260 MG/L vs limit 0.0100 MG/L (2.6×)2007-10-01 · Arsenic: measured 0.0230 MG/L vs limit 0.0100 MG/L (2.3×)
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 4 results on file · action level 15 ppb

2 ppb
0 ppb
0 ppb
0 ppb

Open now (1)

  1. 2025-01-01Lead and Copper RuleLead Consumer NoticeOpen

Every violation on record

  1. 2025-01-01Lead and Copper RuleLead Consumer NoticeOpen
  2. 2024-06-01Revised Total Coliform RuleMONBack in compliance
  3. 2023-10-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  4. 2023-07-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  5. 2023-07-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  6. 2023-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  7. 2023-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  8. 2023-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  9. 2021-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  10. 2021-09-01Revised Total Coliform RuleRPTBack in compliance
  11. 2021-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  12. 2021-06-01Revised Total Coliform RuleRPTBack in compliance
  13. 2020-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  14. 2019-01-01Lead and Copper RuleLead Consumer NoticeBack in compliance
  15. 2018-07-01ArsenicMonitoring, RegularBack in compliance
  16. 2017-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  17. 2017-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  18. 2017-07-01ArsenicMCL, Averagemeasured 0.0130 MG/L · limit 0.0100 MG/LBack in compliance
  19. 2017-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  20. 2017-04-01ArsenicMCL, Averagemeasured 0.0170 MG/L · limit 0.0100 MG/LBack in compliance
  21. 2017-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  22. 2017-01-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  23. 2017-01-01ArsenicMCL, Averagemeasured 0.0260 MG/L · limit 0.0100 MG/LBack in compliance
  24. 2016-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  25. 2016-10-01ArsenicMCL, Single Samplemeasured 0.0250 MG/L · limit 0.0100 MG/LBack in compliance
Show the other 59 entries
  1. 2016-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  2. 2016-08-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  3. 2016-08-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  4. 2016-08-01Revised Total Coliform RuleMONBack in compliance
  5. 2016-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  6. 2016-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  7. 2016-07-01ArsenicMonitoring, RegularBack in compliance
  8. 2016-07-01Revised Total Coliform RuleMONBack in compliance
  9. 2016-04-01ArsenicMonitoring, RegularBack in compliance
  10. 2016-01-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  11. 2016-01-01ArsenicMonitoring, RegularBack in compliance
  12. 2016-01-01ArsenicMCL, Single Samplemeasured 0.0150 MG/L · limit 0.0100 MG/LBack in compliance
  13. 2015-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  14. 2015-10-01ArsenicMCL, Single Samplemeasured 0.0150 MG/L · limit 0.0100 MG/LBack in compliance
  15. 2015-09-02E. ColiMonitoring, Source Water (GWR)Back in compliance
  16. 2015-08-01Coliform (TCR)MCL, Monthly (TCR)Back in compliance
  17. 2015-08-01Coliform (TCR)Monitoring, Repeat Major (TCR)Back in compliance
  18. 2014-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  19. 2014-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  20. 2014-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  21. 2013-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  22. 2013-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  23. 2013-04-01ArsenicMCL, Averagemeasured 0.0125 MG/L · limit 0.0100 MG/LBack in compliance
  24. 2012-10-01ArsenicMCL, Single Samplemeasured 0.0250 MG/L · limit 0.0100 MG/LBack in compliance
  25. 2012-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  26. 2012-07-01ArsenicMCL, Single Samplemeasured 0.0250 MG/L · limit 0.0100 MG/LBack in compliance
  27. 2012-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  28. 2012-04-01ArsenicMCL, Single Samplemeasured 0.0250 MG/L · limit 0.0100 MG/LBack in compliance
  29. 2012-04-01ArsenicMCL, Averagemeasured 0.0130 MG/L · limit 0.0100 MG/LBack in compliance
  30. 2012-01-01ArsenicMCL, Single Samplemeasured 0.0250 MG/L · limit 0.0100 MG/LBack in compliance
  31. 2011-12-01E. ColiMonitoring, Source Water (GWR)Back in compliance
  32. 2011-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  33. 2011-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  34. 2011-04-01ArsenicMCL, Single Samplemeasured 0.0250 MG/L · limit 0.0100 MG/LBack in compliance
  35. 2011-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  36. 2011-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  37. 2011-01-01ArsenicMCL, Averagemeasured 0.0260 MG/L · limit 0.0100 MG/LBack in compliance
  38. 2010-10-01ArsenicMCL, Averagemeasured 0.0250 MG/L · limit 0.0100 MG/LBack in compliance
  39. 2010-07-01ArsenicMCL, Averagemeasured 0.0240 MG/L · limit 0.0100 MG/LBack in compliance
  40. 2010-04-01ArsenicMCL, Averagemeasured 0.0240 MG/L · limit 0.0100 MG/LBack in compliance
  41. 2010-01-01ArsenicMCL, Averagemeasured 0.0230 MG/L · limit 0.0100 MG/LBack in compliance
  42. 2009-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  43. 2009-10-01ArsenicMCL, Averagemeasured 0.0230 MG/L · limit 0.0100 MG/LBack in compliance
  44. 2009-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  45. 2009-07-01ArsenicMCL, Averagemeasured 0.0230 MG/L · limit 0.0100 MG/LBack in compliance
  46. 2009-04-01ArsenicMCL, Averagemeasured 0.0230 MG/L · limit 0.0100 MG/LBack in compliance
  47. 2009-01-01ArsenicMCL, Averagemeasured 0.0250 MG/L · limit 0.0100 MG/LBack in compliance
  48. 2008-10-01ArsenicMCL, Averagemeasured 0.0260 MG/L · limit 0.0100 MG/LBack in compliance
  49. 2008-07-01ArsenicMCL, Averagemeasured 0.0260 MG/L · limit 0.0100 MG/LBack in compliance
  50. 2008-04-01ArsenicMCL, Averagemeasured 0.0280 MG/L · limit 0.0100 MG/LBack in compliance
  51. 2008-01-01ArsenicMCL, Single Samplemeasured 0.0260 MG/L · limit 0.0100 MG/LBack in compliance
  52. 2007-10-01ArsenicMCL, Averagemeasured 0.0230 MG/L · limit 0.0100 MG/LBack in compliance
  53. 2007-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  54. 2006-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  55. 2005-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  56. 2005-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  57. 2004-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  58. 2003-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  59. 2002-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance

System details

Population served169
Service connections66
Water sourceGroundwater
System typeCommunity Water System
OwnerPublic/Private
StatusActive
CityDes Peres
EPA ZIP on file63131

Areas served

  • Camp Verde, Yavapai County

Reading this record

Cs Lake Verde Water Company is a community water system that draws from groundwater and serves about 169 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.