Community Water System · PWSID CO0145150

Eureka Wc

Serves 498 peopleGroundwaterOwner: PrivateRocky Ford, Colorado
1 open treatment violation.

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 2007: 111 violations. 61 over the limit · 3 treatment lapses · 29 missed or late tests · 18 notices or reports. Most recent began 2025-10-01.

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

61Over the limit
3Treatment lapse1 open
29Missed or late test1 open
18Notice or report

More violations on record than 97% of active water systems in Colorado. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

20052007 · Notice or report: 120102011 · Missed or late test: 112011 · Missed or late test: 112011 · Missed or late test: 112011 · Missed or late test: 112011 · Missed or late test: 112011 · Missed or late test: 1120152016 · Over the limit: 22017 · Over the limit: 12018 · Over the limit: 82018 · Over the limit: 82018 · Over the limit: 82018 · Over the limit: 82019 · Over the limit: 82019 · Over the limit: 82019 · Over the limit: 82019 · Over the limit: 82020 · Over the limit: 82020 · Over the limit: 82020 · Over the limit: 82020 · Over the limit: 820202021 · Over the limit: 72021 · Over the limit: 72021 · Over the limit: 72021 · Over the limit: 72022 · Over the limit: 52022 · Over the limit: 52022 · Over the limit: 52022 · Notice or report: 22023 · Over the limit: 82023 · Over the limit: 82023 · Over the limit: 82023 · Over the limit: 82023 · Missed or late test: 62023 · Missed or late test: 62023 · Missed or late test: 62023 · Notice or report: 32023 · Notice or report: 32024 · Over the limit: 82024 · Over the limit: 82024 · Over the limit: 82024 · Over the limit: 82024 · Treatment lapse: 22024 · Missed or late test: 72024 · Missed or late test: 72024 · Missed or late test: 72024 · Missed or late test: 72024 · Notice or report: 42024 · Notice or report: 42025 · Over the limit: 62025 · Over the limit: 62025 · Over the limit: 62025 · Treatment lapse: 12025 · Missed or late test: 52025 · Missed or late test: 52025 · Missed or late test: 52025 · Notice or report: 82025 · Notice or report: 82025 · Notice or report: 82025 · Notice or report: 82025
One square ≈ 2 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
55% over the limit · 613% treatment lapse · 326% missed or late test · 2916% notice or report · 18

Across Colorado, 74% of violations are missed or late tests and 6% are water over a limit.

How far over the limit

at the limit2×5×10×100×+Gross Alpha, Excl. Radon and UCombined Radium (-226 and...2025-07-01 · Gross Alpha, Excl. Radon and U: measured 16.00 PCI/L vs limit 15.00 PCI/L (1.1×)2025-07-01 · Combined Radium (-226 and -228): measured 18.00 PCI/L vs limit 5.00 PCI/L (3.6×)2025-04-01 · Gross Alpha, Excl. Radon and U: measured 21.00 PCI/L vs limit 15.00 PCI/L (1.4×)2025-04-01 · Combined Radium (-226 and -228): measured 20.00 PCI/L vs limit 5.00 PCI/L (4.0×)2025-01-01 · Gross Alpha, Excl. Radon and U: measured 24.90 PCI/L vs limit 15.00 PCI/L (1.7×)2025-01-01 · Combined Radium (-226 and -228): measured 19.40 PCI/L vs limit 5.00 PCI/L (3.9×)2024-10-01 · Gross Alpha, Excl. Radon and U: measured 27.33 PCI/L vs limit 15.00 PCI/L (1.8×)2024-10-01 · Combined Radium (-226 and -228): measured 19.47 PCI/L vs limit 5.00 PCI/L (3.9×)2024-07-01 · Gross Alpha, Excl. Radon and U: measured 27.90 PCI/L vs limit 15.00 PCI/L (1.9×)2024-07-01 · Combined Radium (-226 and -228): measured 18.90 PCI/L vs limit 5.00 PCI/L (3.8×)2024-04-01 · Combined Radium (-226 and -228): measured 18.15 PCI/L vs limit 5.00 PCI/L (3.6×)2024-04-01 · Gross Alpha, Excl. Radon and U: measured 24.40 PCI/L vs limit 15.00 PCI/L (1.6×)2024-01-01 · Combined Radium (-226 and -228): measured 17.90 PCI/L vs limit 5.00 PCI/L (3.6×)2024-01-01 · Gross Alpha, Excl. Radon and U: measured 26.90 PCI/L vs limit 15.00 PCI/L (1.8×)2023-10-01 · Combined Radium (-226 and -228): measured 18.10 PCI/L vs limit 5.00 PCI/L (3.6×)2023-10-01 · Gross Alpha, Excl. Radon and U: measured 29.60 PCI/L vs limit 15.00 PCI/L (2.0×)2023-07-01 · Combined Radium (-226 and -228): measured 17.83 PCI/L vs limit 5.00 PCI/L (3.6×)2023-07-01 · Gross Alpha, Excl. Radon and U: measured 28.27 PCI/L vs limit 15.00 PCI/L (1.9×)2023-04-01 · Combined Radium (-226 and -228): measured 18.10 PCI/L vs limit 5.00 PCI/L (3.6×)2023-04-01 · Gross Alpha, Excl. Radon and U: measured 28.60 PCI/L vs limit 15.00 PCI/L (1.9×)2023-01-01 · Combined Radium (-226 and -228): measured 18.10 PCI/L vs limit 5.00 PCI/L (3.6×)2023-01-01 · Gross Alpha, Excl. Radon and U: measured 28.60 PCI/L vs limit 15.00 PCI/L (1.9×)2022-10-01 · Gross Alpha, Excl. Radon and U: measured 21.00 PCI/L vs limit 15.00 PCI/L (1.4×)2022-10-01 · Combined Radium (-226 and -228): measured 18.00 PCI/L vs limit 5.00 PCI/L (3.6×)2022-07-01 · Combined Radium (-226 and -228): measured 19.00 PCI/L vs limit 5.00 PCI/L (3.8×)2022-04-01 · Combined Radium (-226 and -228): measured 20.00 PCI/L vs limit 5.00 PCI/L (4.0×)2022-01-01 · Combined Radium (-226 and -228): measured 21.00 PCI/L vs limit 5.00 PCI/L (4.2×)2021-10-01 · Combined Radium (-226 and -228): measured 22.29 PCI/L vs limit 5.00 PCI/L (4.5×)2021-07-01 · Gross Alpha, Excl. Radon and U: measured 18.00 PCI/L vs limit 15.00 PCI/L (1.2×)2021-07-01 · Combined Radium (-226 and -228): measured 22.00 PCI/L vs limit 5.00 PCI/L (4.4×)2021-04-01 · Gross Alpha, Excl. Radon and U: measured 22.00 PCI/L vs limit 15.00 PCI/L (1.5×)2021-04-01 · Combined Radium (-226 and -228): measured 21.00 PCI/L vs limit 5.00 PCI/L (4.2×)2021-01-01 · Gross Alpha, Excl. Radon and U: measured 24.25 PCI/L vs limit 15.00 PCI/L (1.6×)2021-01-01 · Combined Radium (-226 and -228): measured 20.70 PCI/L vs limit 5.00 PCI/L (4.1×)2020-10-01 · Gross Alpha, Excl. Radon and U: measured 28.50 PCI/L vs limit 15.00 PCI/L (1.9×)2020-10-01 · Combined Radium (-226 and -228): measured 21.20 PCI/L vs limit 5.00 PCI/L (4.2×)2020-07-01 · Gross Alpha, Excl. Radon and U: measured 29.00 PCI/L vs limit 15.00 PCI/L (1.9×)2020-07-01 · Combined Radium (-226 and -228): measured 21.50 PCI/L vs limit 5.00 PCI/L (4.3×)2020-04-01 · Combined Radium (-226 and -228): measured 21.80 PCI/L vs limit 5.00 PCI/L (4.4×)2020-04-01 · Gross Alpha, Excl. Radon and U: measured 29.50 PCI/L vs limit 15.00 PCI/L (2.0×)2020-01-01 · Combined Radium (-226 and -228): measured 21.55 PCI/L vs limit 5.00 PCI/L (4.3×)2020-01-01 · Gross Alpha, Excl. Radon and U: measured 27.25 PCI/L vs limit 15.00 PCI/L (1.8×)2019-10-01 · Gross Alpha, Excl. Radon and U: measured 25.00 PCI/L vs limit 15.00 PCI/L (1.7×)2019-10-01 · Combined Radium (-226 and -228): measured 21.30 PCI/L vs limit 5.00 PCI/L (4.3×)2019-07-01 · Gross Alpha, Excl. Radon and U: measured 27.00 PCI/L vs limit 15.00 PCI/L (1.8×)2019-07-01 · Combined Radium (-226 and -228): measured 21.15 PCI/L vs limit 5.00 PCI/L (4.2×)2019-04-01 · Combined Radium (-226 and -228): measured 21.00 PCI/L vs limit 5.00 PCI/L (4.2×)2019-04-01 · Gross Alpha, Excl. Radon and U: measured 29.00 PCI/L vs limit 15.00 PCI/L (1.9×)2019-01-01 · Combined Radium (-226 and -228): measured 20.75 PCI/L vs limit 5.00 PCI/L (4.2×)2019-01-01 · Gross Alpha, Excl. Radon and U: measured 29.25 PCI/L vs limit 15.00 PCI/L (1.9×)2018-10-01 · Combined Radium (-226 and -228): measured 20.50 PCI/L vs limit 5.00 PCI/L (4.1×)2018-10-01 · Gross Alpha, Excl. Radon and U: measured 29.50 PCI/L vs limit 15.00 PCI/L (2.0×)2018-07-01 · Combined Radium (-226 and -228): measured 20.67 PCI/L vs limit 5.00 PCI/L (4.1×)2018-07-01 · Gross Alpha, Excl. Radon and U: measured 27.67 PCI/L vs limit 15.00 PCI/L (1.8×)2018-04-01 · Gross Alpha, Excl. Radon and U: measured 20.67 PCI/L vs limit 15.00 PCI/L (1.4×)2018-04-01 · Combined Radium (-226 and -228): measured 20.00 PCI/L vs limit 5.00 PCI/L (4.0×)2018-01-01 · Gross Alpha, Excl. Radon and U: measured 19.00 PCI/L vs limit 15.00 PCI/L (1.3×)2018-01-01 · Combined Radium (-226 and -228): measured 19.50 PCI/L vs limit 5.00 PCI/L (3.9×)2017-01-01 · Combined Radium (-226 and -228): measured 18.00 PCI/L vs limit 5.00 PCI/L (3.6×)2016-01-01 · Combined Radium (-226 and -228): measured 17.50 PCI/L vs limit 5.00 PCI/L (3.5×)2016-01-01 · Gross Alpha, Excl. Radon and U: measured 18.00 PCI/L vs limit 15.00 PCI/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.

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 8 results on file · action level 15 ppb

27.5 ppb
8.5 ppb
7.5 ppb
4 ppb
3.5 ppb
3 ppb
2.5 ppb
0 ppb

Open now (2)

  1. 2025-10-01Lead and Copper RuleLead Consumer NoticeOpen
  2. 2025-04-01Lead and Copper RuleOCCT/SOWT Study/RecommendationOpen

Every violation on record

  1. 2025-10-01Lead and Copper RuleLead Consumer NoticeOpen
  2. 2025-10-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  3. 2025-08-11Public NoticePN Violation without NPDWR ViolationBack in compliance
  4. 2025-07-22Public NoticePN Violation for NPDWR ViolationBack in compliance
  5. 2025-07-11Unknown contaminantRecord KeepingPeriod ended · no return to compliance on file
  6. 2025-07-01Gross Alpha, Excl. Radon and UMCL, Averagemeasured 16.00 PCI/L · limit 15.00 PCI/LPeriod ended · no return to compliance on file
  7. 2025-07-01Combined Radium (-226 and -228)MCL, Averagemeasured 18.00 PCI/L · limit 5.00 PCI/LPeriod ended · no return to compliance on file
  8. 2025-07-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  9. 2025-05-23Public NoticePN Violation for NPDWR ViolationBack in compliance
  10. 2025-04-01Lead and Copper RuleOCCT/SOWT Study/RecommendationOpen
  11. 2025-04-01Combined UraniumMonitoring, RegularPeriod ended · no return to compliance on file
  12. 2025-04-01Gross Alpha, Excl. Radon and UMonitoring, RegularPeriod ended · no return to compliance on file
  13. 2025-04-01Combined Radium (-226 and -228)Monitoring, RegularPeriod ended · no return to compliance on file
  14. 2025-04-01Gross Alpha, Excl. Radon and UMCL, Averagemeasured 21.00 PCI/L · limit 15.00 PCI/LPeriod ended · no return to compliance on file
  15. 2025-04-01Combined Radium (-226 and -228)MCL, Averagemeasured 20.00 PCI/L · limit 5.00 PCI/LPeriod ended · no return to compliance on file
  16. 2025-04-01Lead and Copper RuleInitial, Follow-up, or Routine Source Water M/RBack in compliance
  17. 2025-04-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  18. 2025-01-31Public NoticePN Violation for NPDWR ViolationBack in compliance
  19. 2025-01-01Gross Alpha, Excl. Radon and UMCL, Averagemeasured 24.90 PCI/L · limit 15.00 PCI/LPeriod ended · no return to compliance on file
  20. 2025-01-01Combined Radium (-226 and -228)MCL, Averagemeasured 19.40 PCI/L · limit 5.00 PCI/LPeriod ended · no return to compliance on file
  21. 2024-12-01Lead and Copper RuleLead Consumer NoticeBack in compliance
  22. 2024-12-01Lead and Copper RulePublic EducationBack in compliance
  23. 2024-10-01Gross Alpha, Excl. Radon and UMCL, Averagemeasured 27.33 PCI/L · limit 15.00 PCI/LPeriod ended · no return to compliance on file
  24. 2024-10-01Combined Radium (-226 and -228)MCL, Averagemeasured 19.47 PCI/L · limit 5.00 PCI/LPeriod ended · no return to compliance on file
  25. 2024-10-01Combined Radium (-226 and -228)Monitoring, RegularPeriod ended · no return to compliance on file
Show the other 86 entries
  1. 2024-10-01Combined UraniumMonitoring, RegularPeriod ended · no return to compliance on file
  2. 2024-10-01Gross Alpha, Excl. Radon and UMonitoring, RegularPeriod ended · no return to compliance on file
  3. 2024-10-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  4. 2024-07-01Gross Alpha, Excl. Radon and UMCL, Averagemeasured 27.90 PCI/L · limit 15.00 PCI/LPeriod ended · no return to compliance on file
  5. 2024-07-01Combined Radium (-226 and -228)MCL, Averagemeasured 18.90 PCI/L · limit 5.00 PCI/LPeriod ended · no return to compliance on file
  6. 2024-07-01Combined UraniumMonitoring, RegularBack in compliance
  7. 2024-07-01Gross Alpha, Excl. Radon and UMonitoring, RegularBack in compliance
  8. 2024-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  9. 2024-04-01Combined Radium (-226 and -228)MCL, Averagemeasured 18.15 PCI/L · limit 5.00 PCI/LPeriod ended · no return to compliance on file
  10. 2024-04-01Gross Alpha, Excl. Radon and UMCL, Averagemeasured 24.40 PCI/L · limit 15.00 PCI/LPeriod ended · no return to compliance on file
  11. 2024-03-07Public NoticePN Violation for NPDWR ViolationBack in compliance
  12. 2024-02-01DBP Stage 1Treatment Technique No Certif. OperatorBack in compliance
  13. 2024-01-01NitrateMonitoring, RegularPeriod ended · no return to compliance on file
  14. 2024-01-01Combined Radium (-226 and -228)MCL, Averagemeasured 17.90 PCI/L · limit 5.00 PCI/LPeriod ended · no return to compliance on file
  15. 2024-01-01Gross Alpha, Excl. Radon and UMCL, Averagemeasured 26.90 PCI/L · limit 15.00 PCI/LPeriod ended · no return to compliance on file
  16. 2024-01-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  17. 2023-10-01Combined UraniumMonitoring, RegularBack in compliance
  18. 2023-10-01Combined Radium (-226 and -228)Monitoring, RegularBack in compliance
  19. 2023-10-01Gross Alpha, Excl. Radon and UMonitoring, RegularBack in compliance
  20. 2023-10-01Combined Radium (-226 and -228)MCL, Averagemeasured 18.10 PCI/L · limit 5.00 PCI/LPeriod ended · no return to compliance on file
  21. 2023-10-01Gross Alpha, Excl. Radon and UMCL, Averagemeasured 29.60 PCI/L · limit 15.00 PCI/LPeriod ended · no return to compliance on file
  22. 2023-10-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  23. 2023-07-01Combined UraniumMonitoring, RegularBack in compliance
  24. 2023-07-01Combined Radium (-226 and -228)Monitoring, RegularBack in compliance
  25. 2023-07-01Gross Alpha, Excl. Radon and UMonitoring, RegularBack in compliance
  26. 2023-07-01Combined Radium (-226 and -228)MCL, Averagemeasured 17.83 PCI/L · limit 5.00 PCI/LPeriod ended · no return to compliance on file
  27. 2023-07-01Gross Alpha, Excl. Radon and UMCL, Averagemeasured 28.27 PCI/L · limit 15.00 PCI/LPeriod ended · no return to compliance on file
  28. 2023-04-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  29. 2023-04-01Combined Radium (-226 and -228)MCL, Averagemeasured 18.10 PCI/L · limit 5.00 PCI/LPeriod ended · no return to compliance on file
  30. 2023-04-01Gross Alpha, Excl. Radon and UMCL, Averagemeasured 28.60 PCI/L · limit 15.00 PCI/LPeriod ended · no return to compliance on file
  31. 2023-01-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  32. 2023-01-01Combined Radium (-226 and -228)MCL, Averagemeasured 18.10 PCI/L · limit 5.00 PCI/LPeriod ended · no return to compliance on file
  33. 2023-01-01Gross Alpha, Excl. Radon and UMCL, Averagemeasured 28.60 PCI/L · limit 15.00 PCI/LPeriod ended · no return to compliance on file
  34. 2022-10-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  35. 2022-10-01Gross Alpha, Excl. Radon and UMCL, Averagemeasured 21.00 PCI/L · limit 15.00 PCI/LPeriod ended · no return to compliance on file
  36. 2022-10-01Combined Radium (-226 and -228)MCL, Averagemeasured 18.00 PCI/L · limit 5.00 PCI/LPeriod ended · no return to compliance on file
  37. 2022-07-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  38. 2022-07-01Combined Radium (-226 and -228)MCL, Averagemeasured 19.00 PCI/L · limit 5.00 PCI/LPeriod ended · no return to compliance on file
  39. 2022-04-01Combined Radium (-226 and -228)MCL, Averagemeasured 20.00 PCI/L · limit 5.00 PCI/LPeriod ended · no return to compliance on file
  40. 2022-01-01Combined Radium (-226 and -228)MCL, Averagemeasured 21.00 PCI/L · limit 5.00 PCI/LPeriod ended · no return to compliance on file
  41. 2021-10-01Combined Radium (-226 and -228)MCL, Averagemeasured 22.29 PCI/L · limit 5.00 PCI/LPeriod ended · no return to compliance on file
  42. 2021-07-01Gross Alpha, Excl. Radon and UMCL, Averagemeasured 18.00 PCI/L · limit 15.00 PCI/LPeriod ended · no return to compliance on file
  43. 2021-07-01Combined Radium (-226 and -228)MCL, Averagemeasured 22.00 PCI/L · limit 5.00 PCI/LPeriod ended · no return to compliance on file
  44. 2021-04-01Gross Alpha, Excl. Radon and UMCL, Averagemeasured 22.00 PCI/L · limit 15.00 PCI/LPeriod ended · no return to compliance on file
  45. 2021-04-01Combined Radium (-226 and -228)MCL, Averagemeasured 21.00 PCI/L · limit 5.00 PCI/LPeriod ended · no return to compliance on file
  46. 2021-01-01Gross Alpha, Excl. Radon and UMCL, Averagemeasured 24.25 PCI/L · limit 15.00 PCI/LPeriod ended · no return to compliance on file
  47. 2021-01-01Combined Radium (-226 and -228)MCL, Averagemeasured 20.70 PCI/L · limit 5.00 PCI/LPeriod ended · no return to compliance on file
  48. 2020-10-01Gross Alpha, Excl. Radon and UMCL, Averagemeasured 28.50 PCI/L · limit 15.00 PCI/LPeriod ended · no return to compliance on file
  49. 2020-10-01Combined Radium (-226 and -228)MCL, Averagemeasured 21.20 PCI/L · limit 5.00 PCI/LPeriod ended · no return to compliance on file
  50. 2020-07-01Gross Alpha, Excl. Radon and UMCL, Averagemeasured 29.00 PCI/L · limit 15.00 PCI/LPeriod ended · no return to compliance on file
  51. 2020-07-01Combined Radium (-226 and -228)MCL, Averagemeasured 21.50 PCI/L · limit 5.00 PCI/LPeriod ended · no return to compliance on file
  52. 2020-04-01Combined Radium (-226 and -228)MCL, Averagemeasured 21.80 PCI/L · limit 5.00 PCI/LPeriod ended · no return to compliance on file
  53. 2020-04-01Gross Alpha, Excl. Radon and UMCL, Averagemeasured 29.50 PCI/L · limit 15.00 PCI/LPeriod ended · no return to compliance on file
  54. 2020-01-01Combined Radium (-226 and -228)MCL, Averagemeasured 21.55 PCI/L · limit 5.00 PCI/LPeriod ended · no return to compliance on file
  55. 2020-01-01Gross Alpha, Excl. Radon and UMCL, Averagemeasured 27.25 PCI/L · limit 15.00 PCI/LPeriod ended · no return to compliance on file
  56. 2019-10-01Gross Alpha, Excl. Radon and UMCL, Averagemeasured 25.00 PCI/L · limit 15.00 PCI/LPeriod ended · no return to compliance on file
  57. 2019-10-01Combined Radium (-226 and -228)MCL, Averagemeasured 21.30 PCI/L · limit 5.00 PCI/LPeriod ended · no return to compliance on file
  58. 2019-07-01Gross Alpha, Excl. Radon and UMCL, Averagemeasured 27.00 PCI/L · limit 15.00 PCI/LPeriod ended · no return to compliance on file
  59. 2019-07-01Combined Radium (-226 and -228)MCL, Averagemeasured 21.15 PCI/L · limit 5.00 PCI/LPeriod ended · no return to compliance on file
  60. 2019-04-01Combined Radium (-226 and -228)MCL, Averagemeasured 21.00 PCI/L · limit 5.00 PCI/LPeriod ended · no return to compliance on file
  61. 2019-04-01Gross Alpha, Excl. Radon and UMCL, Averagemeasured 29.00 PCI/L · limit 15.00 PCI/LPeriod ended · no return to compliance on file
  62. 2019-01-01Combined Radium (-226 and -228)MCL, Averagemeasured 20.75 PCI/L · limit 5.00 PCI/LPeriod ended · no return to compliance on file
  63. 2019-01-01Gross Alpha, Excl. Radon and UMCL, Averagemeasured 29.25 PCI/L · limit 15.00 PCI/LPeriod ended · no return to compliance on file
  64. 2018-10-01Combined Radium (-226 and -228)MCL, Averagemeasured 20.50 PCI/L · limit 5.00 PCI/LPeriod ended · no return to compliance on file
  65. 2018-10-01Gross Alpha, Excl. Radon and UMCL, Averagemeasured 29.50 PCI/L · limit 15.00 PCI/LPeriod ended · no return to compliance on file
  66. 2018-07-01Combined Radium (-226 and -228)MCL, Averagemeasured 20.67 PCI/L · limit 5.00 PCI/LPeriod ended · no return to compliance on file
  67. 2018-07-01Gross Alpha, Excl. Radon and UMCL, Averagemeasured 27.67 PCI/L · limit 15.00 PCI/LPeriod ended · no return to compliance on file
  68. 2018-04-01Gross Alpha, Excl. Radon and UMCL, Averagemeasured 20.67 PCI/L · limit 15.00 PCI/LPeriod ended · no return to compliance on file
  69. 2018-04-01Combined Radium (-226 and -228)MCL, Averagemeasured 20.00 PCI/L · limit 5.00 PCI/LPeriod ended · no return to compliance on file
  70. 2018-01-01Gross Alpha, Excl. Radon and UMCL, Averagemeasured 19.00 PCI/L · limit 15.00 PCI/LPeriod ended · no return to compliance on file
  71. 2018-01-01Combined Radium (-226 and -228)MCL, Averagemeasured 19.50 PCI/L · limit 5.00 PCI/LPeriod ended · no return to compliance on file
  72. 2017-01-01Combined Radium (-226 and -228)MCL, Averagemeasured 18.00 PCI/L · limit 5.00 PCI/LPeriod ended · no return to compliance on file
  73. 2016-01-01Combined Radium (-226 and -228)MCL, Averagemeasured 17.50 PCI/L · limit 5.00 PCI/LPeriod ended · no return to compliance on file
  74. 2016-01-01Gross Alpha, Excl. Radon and UMCL, Averagemeasured 18.00 PCI/L · limit 15.00 PCI/LPeriod ended · no return to compliance on file
  75. 2011-01-01SeleniumMonitoring, RegularBack in compliance
  76. 2011-01-01Thallium, TotalMonitoring, RegularBack in compliance
  77. 2011-01-01Beryllium, TotalMonitoring, RegularBack in compliance
  78. 2011-01-01Antimony, TotalMonitoring, RegularBack in compliance
  79. 2011-01-01SodiumMonitoring, RegularBack in compliance
  80. 2011-01-01NickelMonitoring, RegularBack in compliance
  81. 2011-01-01MercuryMonitoring, RegularBack in compliance
  82. 2011-01-01ChromiumMonitoring, RegularBack in compliance
  83. 2011-01-01CadmiumMonitoring, RegularBack in compliance
  84. 2011-01-01BariumMonitoring, RegularBack in compliance
  85. 2011-01-01ArsenicMonitoring, RegularBack in compliance
  86. 2007-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance

System details

Population served498
Service connections147
Water sourceGroundwater
System typeCommunity Water System
OwnerPrivate
StatusActive
CityRocky Ford
EPA ZIP on file81067

Areas served

  • Otero County

Reading this record

Eureka Wc is a community water system that draws from groundwater and serves about 498 people in Rocky Ford, Colorado. 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.