Community Water System · PWSID CO0150200

Bristol Wsd

Serves 151 peopleGroundwaterOwner: Local GovernmentBristol, Colorado
Nothing open right now.

On record since 2007: 118 violations. 3 over the limit · 4 treatment lapses · 101 missed or late tests · 10 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.

3Over the limit
4Treatment lapse
101Missed or late test
10Notice 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 · Missed or late test: 12007 · Notice or report: 120102014 · Missed or late test: 220152016 · Treatment lapse: 12017 · Missed or late test: 622017 · Missed or late test: 622017 · Missed or late test: 622017 · Missed or late test: 622017 · Missed or late test: 622017 · Missed or late test: 622017 · Missed or late test: 622017 · Missed or late test: 622017 · Missed or late test: 622017 · Missed or late test: 622017 · Missed or late test: 622019 · Treatment lapse: 12019 · Missed or late test: 132019 · Missed or late test: 132019 · Missed or late test: 132019 · Notice or report: 22020 · Missed or late test: 112020 · Missed or late test: 112020 · Notice or report: 320202021 · Over the limit: 32021 · Missed or late test: 82021 · Missed or late test: 82021 · Notice or report: 32022 · Treatment lapse: 22022 · Missed or late test: 12022 · Notice or report: 12023 · Missed or late test: 22025 · Missed or late test: 12025
One square ≈ 6 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
3% over the limit · 33% treatment lapse · 486% missed or late test · 1018% notice or report · 10

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×+Combined Radium (-226 and...2021-10-01 · Combined Radium (-226 and -228): measured 6.85 PCI/L vs limit 5.00 PCI/L (1.4×)2021-07-01 · Combined Radium (-226 and -228): measured 6.00 PCI/L vs limit 5.00 PCI/L (1.2×)2021-04-01 · Combined Radium (-226 and -228): measured 6.45 PCI/L vs limit 5.00 PCI/L (1.3×)
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 7 results on file · action level 15 ppb

2 ppb
1.5 ppb
1.4 ppb
1 ppb
0 ppb
0 ppb
0 ppb

Every violation on record

  1. 2025-01-01Lead and Copper RuleLead Consumer NoticeBack in compliance
  2. 2023-10-01Combined Radium (-226 and -228)Monitoring, RegularBack in compliance
  3. 2023-04-01Combined Radium (-226 and -228)Monitoring, RegularBack in compliance
  4. 2022-10-01Combined Radium (-226 and -228)Monitoring, RegularBack in compliance
  5. 2022-03-01DBP Stage 1Treatment Technique No Certif. OperatorBack in compliance
  6. 2022-02-26Public NoticePN Violation for NPDWR ViolationBack in compliance
  7. 2022-01-16DBP Stage 1Treatment Technique No Certif. OperatorBack in compliance
  8. 2021-12-06Public NoticePN Violation for NPDWR ViolationBack in compliance
  9. 2021-12-01Revised Total Coliform RuleMONBack in compliance
  10. 2021-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  11. 2021-10-01Combined Radium (-226 and -228)MCL, Averagemeasured 6.85 PCI/L · limit 5.00 PCI/LBack in compliance
  12. 2021-10-01Combined Radium (-226 and -228)Monitoring, RegularBack in compliance
  13. 2021-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  14. 2021-07-03Public NoticePN Violation for NPDWR ViolationBack in compliance
  15. 2021-07-01Combined Radium (-226 and -228)MCL, Averagemeasured 6.00 PCI/L · limit 5.00 PCI/LBack in compliance
  16. 2021-07-01Combined Radium (-226 and -228)Monitoring, RegularBack in compliance
  17. 2021-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  18. 2021-07-01Revised Total Coliform RuleMONBack in compliance
  19. 2021-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  20. 2021-04-01Combined Radium (-226 and -228)MCL, Averagemeasured 6.45 PCI/L · limit 5.00 PCI/LBack in compliance
  21. 2021-01-01NitrateMonitoring, RegularBack in compliance
  22. 2020-11-01E. ColiMonitoring, Source Water (GWR)Back in compliance
  23. 2020-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  24. 2020-07-03Public NoticePN Violation for NPDWR ViolationBack in compliance
  25. 2020-06-01Revised Total Coliform RuleMONBack in compliance
Show the other 93 entries
  1. 2020-05-01Revised Total Coliform RuleMONBack in compliance
  2. 2020-04-04Public NoticePN Violation for NPDWR ViolationBack in compliance
  3. 2020-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  4. 2020-03-01Revised Total Coliform RuleMONBack in compliance
  5. 2020-02-01Revised Total Coliform RuleMONBack in compliance
  6. 2020-01-05Public NoticePN Violation for NPDWR ViolationBack in compliance
  7. 2020-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  8. 2020-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  9. 2020-01-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  10. 2020-01-01Lead and Copper RuleLead Consumer NoticeBack in compliance
  11. 2019-12-01Revised Total Coliform RuleMONBack in compliance
  12. 2019-11-29Revised Total Coliform RuleTTBack in compliance
  13. 2019-11-24Public NoticePN Violation without NPDWR ViolationBack in compliance
  14. 2019-11-01Revised Total Coliform RuleMONBack in compliance
  15. 2019-10-13E. ColiMonitoring, Source Water (GWR)Back in compliance
  16. 2019-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  17. 2019-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  18. 2019-09-01Revised Total Coliform RuleMONBack in compliance
  19. 2019-07-01Revised Total Coliform RuleMONBack in compliance
  20. 2019-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  21. 2019-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  22. 2019-06-01Revised Total Coliform RuleMONBack in compliance
  23. 2019-05-01Revised Total Coliform RuleMONBack in compliance
  24. 2019-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  25. 2019-04-01Revised Total Coliform RuleMONBack in compliance
  26. 2019-01-01NitrateMonitoring, RegularBack in compliance
  27. 2017-01-01Combined Radium (-226 and -228)Monitoring, RegularBack in compliance
  28. 2017-01-01FluorideMonitoring, RegularBack in compliance
  29. 2017-01-01SeleniumMonitoring, RegularBack in compliance
  30. 2017-01-01Thallium, TotalMonitoring, RegularBack in compliance
  31. 2017-01-01Beryllium, TotalMonitoring, RegularBack in compliance
  32. 2017-01-01Antimony, TotalMonitoring, RegularBack in compliance
  33. 2017-01-01SodiumMonitoring, RegularBack in compliance
  34. 2017-01-01NickelMonitoring, RegularBack in compliance
  35. 2017-01-01MercuryMonitoring, RegularBack in compliance
  36. 2017-01-01ChromiumMonitoring, RegularBack in compliance
  37. 2017-01-01CadmiumMonitoring, RegularBack in compliance
  38. 2017-01-01BariumMonitoring, RegularBack in compliance
  39. 2017-01-01ArsenicMonitoring, RegularBack in compliance
  40. 2017-01-01StyreneMonitoring, RegularBack in compliance
  41. 2017-01-01EthylbenzeneMonitoring, RegularBack in compliance
  42. 2017-01-01TolueneMonitoring, RegularBack in compliance
  43. 2017-01-01BenzeneMonitoring, RegularBack in compliance
  44. 2017-01-01ChlorobenzeneMonitoring, RegularBack in compliance
  45. 2017-01-01TetrachloroethyleneMonitoring, RegularBack in compliance
  46. 2017-01-011,1,2-TrichloroethaneMonitoring, RegularBack in compliance
  47. 2017-01-01TrichloroethyleneMonitoring, RegularBack in compliance
  48. 2017-01-011,2-DichloropropaneMonitoring, RegularBack in compliance
  49. 2017-01-01Carbon tetrachlorideMonitoring, RegularBack in compliance
  50. 2017-01-011,1,1-TrichloroethaneMonitoring, RegularBack in compliance
  51. 2017-01-011,2-DichloroethaneMonitoring, RegularBack in compliance
  52. 2017-01-01trans-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  53. 2017-01-011,1-DichloroethyleneMonitoring, RegularBack in compliance
  54. 2017-01-01Vinyl chlorideMonitoring, RegularBack in compliance
  55. 2017-01-01p-DichlorobenzeneMonitoring, RegularBack in compliance
  56. 2017-01-01o-DichlorobenzeneMonitoring, RegularBack in compliance
  57. 2017-01-01DichloromethaneMonitoring, RegularBack in compliance
  58. 2017-01-01Xylenes, TotalMonitoring, RegularBack in compliance
  59. 2017-01-01cis-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  60. 2017-01-011,2,4-TrichlorobenzeneMonitoring, RegularBack in compliance
  61. 2017-01-01ChlordaneMonitoring, RegularBack in compliance
  62. 2017-01-01Ethylene DibromideMonitoring, RegularBack in compliance
  63. 2017-01-011, 2-Dibromo-3-ChloropropaneMonitoring, RegularBack in compliance
  64. 2017-01-01Total Polychlorinated Biphenyls (PCB)Monitoring, RegularBack in compliance
  65. 2017-01-01PentachlorophenolMonitoring, RegularBack in compliance
  66. 2017-01-01Benzo(a)pyreneMonitoring, RegularBack in compliance
  67. 2017-01-01HexachlorobenzeneMonitoring, RegularBack in compliance
  68. 2017-01-012, 4, 5-TpMonitoring, RegularBack in compliance
  69. 2017-01-012, 4-DMonitoring, RegularBack in compliance
  70. 2017-01-01Heptachlor epoxideMonitoring, RegularBack in compliance
  71. 2017-01-01HeptachlorMonitoring, RegularBack in compliance
  72. 2017-01-01LassoMonitoring, RegularBack in compliance
  73. 2017-01-01AtrazineMonitoring, RegularBack in compliance
  74. 2017-01-01CarbofuranMonitoring, RegularBack in compliance
  75. 2017-01-01HexachlorocyclopentadieneMonitoring, RegularBack in compliance
  76. 2017-01-01DinosebMonitoring, RegularBack in compliance
  77. 2017-01-01PicloramMonitoring, RegularBack in compliance
  78. 2017-01-01Di(2-ethylhexyl) phthalateMonitoring, RegularBack in compliance
  79. 2017-01-01SimazineMonitoring, RegularBack in compliance
  80. 2017-01-01OxamylMonitoring, RegularBack in compliance
  81. 2017-01-01Di(2-ethylhexyl) adipateMonitoring, RegularBack in compliance
  82. 2017-01-01EndothallMonitoring, RegularBack in compliance
  83. 2017-01-01DiquatMonitoring, RegularBack in compliance
  84. 2017-01-01DalaponMonitoring, RegularBack in compliance
  85. 2017-01-01ToxapheneMonitoring, RegularBack in compliance
  86. 2017-01-01MethoxychlorMonitoring, RegularBack in compliance
  87. 2017-01-01Bhc-GammaMonitoring, RegularBack in compliance
  88. 2017-01-01EndrinMonitoring, RegularBack in compliance
  89. 2016-04-01DBP Stage 1Treatment Technique No Certif. OperatorBack in compliance
  90. 2014-01-01Gross Alpha, Excl. Radon and UMonitoring, RegularBack in compliance
  91. 2014-01-01Combined UraniumMonitoring, RegularBack in compliance
  92. 2007-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  93. 2007-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance

System details

Population served151
Service connections67
Water sourceGroundwater
System typeCommunity Water System
OwnerLocal Government
StatusActive
CityBristol
EPA ZIP on file81047

Areas served

  • Prowers County

Reading this record

Bristol Wsd is a community water system that draws from groundwater and serves about 151 people in Bristol, 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.