Community Water System · PWSID TX2330055

Lago Vista Water System

Serves 72 peopleGroundwaterOwner: PrivateDel Rio, Texas
3 open treatment violations.

Open for: Lead and Copper Rule. EPA counts treatment-technique violations as health-based: a required protective step was not done. It is not a measurement of contamination.

On record since 2011: 72 violations. 4 treatment lapses · 42 missed or late tests · 26 notices or reports. Most recent began 2025-09-29.

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
4Treatment lapse3 open
42Missed or late test3 open
26Notice or report

More violations on record than 94% 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

200520102011 · Missed or late test: 12012 · Notice or report: 12013 · Missed or late test: 120152016 · Missed or late test: 12017 · Missed or late test: 32017 · Missed or late test: 32017 · Notice or report: 12018 · Treatment lapse: 32018 · Treatment lapse: 32018 · Missed or late test: 72018 · Missed or late test: 72018 · Missed or late test: 72018 · Missed or late test: 72018 · Notice or report: 32018 · Notice or report: 32019 · Treatment lapse: 12019 · Missed or late test: 62019 · Missed or late test: 62019 · Missed or late test: 62019 · Notice or report: 92019 · Notice or report: 92019 · Notice or report: 92019 · Notice or report: 92019 · Notice or report: 92020 · Missed or late test: 52020 · Missed or late test: 52020 · Missed or late test: 520202021 · Missed or late test: 102021 · Missed or late test: 102021 · Missed or late test: 102021 · Missed or late test: 102021 · Missed or late test: 102021 · Notice or report: 22022 · Missed or late test: 32022 · Missed or late test: 32022 · Notice or report: 62022 · Notice or report: 62022 · Notice or report: 62023 · Missed or late test: 22023 · Notice or report: 32023 · Notice or report: 32024 · Notice or report: 12025 · Missed or late test: 32025 · Missed or late test: 32025
One square ≈ 2 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
6% treatment lapse · 458% missed or late test · 4236% notice or report · 26

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

What you can do

  • Lead: Run cold water for 30 seconds to 2 minutes before using it for drinking or cooking, especially after the water has been sitting for several hours. Use only cold water for cooking and baby formula. Consider a water filter certified to remove lead (look for NSF/ANSI Standard 53 certification). Have your water tested if you live in an older home.

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

65.3 ppb
18 ppb
2.2 ppb
0 ppb

Open now (6)

  1. 2025-09-29Lead and Copper RuleLead Consumer NoticeOpen
  2. 2025-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/ROpen
  3. 2018-10-01Lead and Copper RuleOCCT/SOWT Study/RecommendationOpen
  4. 2018-04-01Lead and Copper RuleOCCT/SOWT Study/RecommendationOpen
  5. 2018-04-01Lead and Copper RuleInitial, Follow-up, or Routine Source Water M/ROpen
  6. 2018-03-31Lead and Copper RuleOCCT/SOWT Study/RecommendationOpen

Every violation on record

  1. 2025-09-29Lead and Copper RuleLead Consumer NoticeOpen
  2. 2025-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/ROpen
  3. 2025-04-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  4. 2024-07-26Public NoticePN Violation for NPDWR ViolationBack in compliance
  5. 2023-08-17Public NoticePN Violation for NPDWR ViolationBack in compliance
  6. 2023-07-01Lead and Copper RuleWater Quality Parameter M/RBack in compliance
  7. 2023-03-05Public NoticePN Violation for NPDWR ViolationBack in compliance
  8. 2023-01-01Lead and Copper RuleWater Quality Parameter M/RPeriod ended · no return to compliance on file
  9. 2023-01-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  10. 2022-12-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  11. 2022-10-15Public NoticePN Violation for NPDWR ViolationBack in compliance
  12. 2022-09-02Public NoticePN Violation for NPDWR ViolationBack in compliance
  13. 2022-09-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  14. 2022-08-21Public NoticePN Violation for NPDWR ViolationBack in compliance
  15. 2022-07-01Lead and Copper RuleWater Quality Parameter M/RPeriod ended · no return to compliance on file
  16. 2022-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  17. 2022-06-25Public NoticePN Violation for NPDWR ViolationBack in compliance
  18. 2022-01-01Lead and Copper RuleWater Quality Parameter M/RPeriod ended · no return to compliance on file
  19. 2021-12-01Revised Total Coliform RuleMONBack in compliance
  20. 2021-11-01Revised Total Coliform RuleMONBack in compliance
  21. 2021-08-01Revised Total Coliform RuleMONBack in compliance
  22. 2021-07-01Lead and Copper RuleWater Quality Parameter M/RPeriod ended · no return to compliance on file
  23. 2021-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  24. 2021-07-01Revised Total Coliform RuleMONBack in compliance
  25. 2021-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
Show the other 41 entries
  1. 2021-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  2. 2021-03-11Public NoticePN Violation for NPDWR ViolationBack in compliance
  3. 2021-01-01Lead and Copper RuleWater Quality Parameter M/RPeriod ended · no return to compliance on file
  4. 2021-01-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  5. 2021-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  6. 2020-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  7. 2020-07-01Lead and Copper RuleWater Quality Parameter M/RPeriod ended · no return to compliance on file
  8. 2020-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  9. 2020-04-01Revised Total Coliform RuleMONBack in compliance
  10. 2020-01-01Lead and Copper RuleWater Quality Parameter M/RPeriod ended · no return to compliance on file
  11. 2019-11-07Public NoticePN Violation for NPDWR ViolationBack in compliance
  12. 2019-11-02Public Notice ×2PN Violation for NPDWR ViolationBack in compliance
  13. 2019-07-01Lead and Copper RuleWater Quality Parameter M/RPeriod ended · no return to compliance on file
  14. 2019-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  15. 2019-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  16. 2019-06-16Public NoticePN Violation for NPDWR ViolationBack in compliance
  17. 2019-06-01Revised Total Coliform RuleMONBack in compliance
  18. 2019-05-04Public NoticePN Violation for NPDWR ViolationBack in compliance
  19. 2019-04-01Lead and Copper RuleLead Consumer NoticeBack in compliance
  20. 2019-03-01Lead and Copper RulePublic EducationBack in compliance
  21. 2019-01-21Public NoticePN Violation for NPDWR ViolationBack in compliance
  22. 2019-01-04Public Notice ×2PN Violation for NPDWR ViolationBack in compliance
  23. 2019-01-01Lead and Copper RuleWater Quality Parameter M/RPeriod ended · no return to compliance on file
  24. 2019-01-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  25. 2018-10-01Lead and Copper RuleOCCT/SOWT Study/RecommendationOpen
  26. 2018-07-01Lead and Copper Rule ×2Water Quality Parameter M/RPeriod ended · no return to compliance on file
  27. 2018-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  28. 2018-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  29. 2018-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  30. 2018-06-10Public Notice ×2PN Violation for NPDWR ViolationBack in compliance
  31. 2018-04-01Lead and Copper RuleOCCT/SOWT Study/RecommendationOpen
  32. 2018-04-01Lead and Copper RuleInitial, Follow-up, or Routine Source Water M/ROpen
  33. 2018-03-31Lead and Copper RuleOCCT/SOWT Study/RecommendationOpen
  34. 2018-01-01Lead and Copper Rule ×2Water Quality Parameter M/RPeriod ended · no return to compliance on file
  35. 2017-12-30Lead and Copper RuleLead Consumer NoticeBack in compliance
  36. 2017-06-01Lead and Copper Rule ×2Water Quality Parameter M/RPeriod ended · no return to compliance on file
  37. 2017-02-03Public NoticePN Violation for NPDWR ViolationBack in compliance
  38. 2016-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  39. 2013-12-30Lead and Copper RuleLead Consumer NoticeBack in compliance
  40. 2012-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  41. 2011-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance

System details

Population served72
Service connections24
Water sourceGroundwater
System typeCommunity Water System
OwnerPrivate
StatusActive
CityDel Rio
EPA ZIP on file78840-0344

Areas served

  • Val Verde County

Reading this record

Lago Vista Water System is a community water system that draws from groundwater and serves about 72 people in Del Rio, 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.