Community Water System · PWSID AK2310879

Rainbow Valley MHP

Serves 105 peopleGroundwaterOwner: PrivateFairbanks, Alaska
3 open treatment violations.

Open for: Groundwater 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 2003: 104 violations. 8 treatment lapses · 78 missed or late tests · 18 notices or reports. Most recent began 2025-01-02.

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
8Treatment lapse3 open
78Missed or late test
18Notice or report1 open

More violations on record than 89% of active water systems in Alaska. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

2003 · Notice or report: 12005 · Notice or report: 120052007 · Missed or late test: 12007 · Notice or report: 12008 · Notice or report: 12009 · Notice or report: 12010 · Notice or report: 120102011 · Missed or late test: 122011 · Missed or late test: 122011 · Missed or late test: 122011 · Missed or late test: 122011 · Notice or report: 12012 · Missed or late test: 12012 · Notice or report: 12013 · Notice or report: 12014 · Missed or late test: 242014 · Missed or late test: 242014 · Missed or late test: 242014 · Missed or late test: 242014 · Missed or late test: 242014 · Missed or late test: 242014 · Missed or late test: 242014 · Missed or late test: 242014 · Notice or report: 12015 · Treatment lapse: 32015 · Missed or late test: 22015 · Notice or report: 220152016 · Missed or late test: 12017 · Missed or late test: 12017 · Notice or report: 22020 · Notice or report: 220202021 · Missed or late test: 42021 · Missed or late test: 42021 · Notice or report: 12022 · Missed or late test: 322022 · Missed or late test: 322022 · Missed or late test: 322022 · Missed or late test: 322022 · Missed or late test: 322022 · Missed or late test: 322022 · Missed or late test: 322022 · Missed or late test: 322022 · Missed or late test: 322022 · Missed or late test: 322022 · Missed or late test: 322023 · Notice or report: 12025 · Treatment lapse: 52025 · Treatment lapse: 52025
One square ≈ 3 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
8% treatment lapse · 875% missed or late test · 7817% notice or report · 18

Across Alaska, 88% of violations are missed or late tests and 2% 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

0.11 ppb
0 ppb
0 ppb

Open now (4)

  1. 2025-01-02Groundwater Rule ×3Failure To Address DeficiencyOpen
  2. 2015-09-22Unknown contaminantSanitary Survey (TCR)Open

Every violation on record

  1. 2025-01-02Groundwater Rule ×3Failure To Address DeficiencyOpen
  2. 2025-01-02Groundwater Rule ×2Failure To Address DeficiencyBack in compliance
  3. 2023-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  4. 2022-02-01Revised Total Coliform RuleMONBack in compliance
  5. 2022-01-01ChlordaneMonitoring, RegularBack in compliance
  6. 2022-01-01Ethylene DibromideMonitoring, RegularBack in compliance
  7. 2022-01-011, 2-Dibromo-3-ChloropropaneMonitoring, RegularBack in compliance
  8. 2022-01-01Total Polychlorinated Biphenyls (PCB)Monitoring, RegularBack in compliance
  9. 2022-01-01PentachlorophenolMonitoring, RegularBack in compliance
  10. 2022-01-01Benzo(a)pyreneMonitoring, RegularBack in compliance
  11. 2022-01-01HexachlorobenzeneMonitoring, RegularBack in compliance
  12. 2022-01-012, 4, 5-TpMonitoring, RegularBack in compliance
  13. 2022-01-012, 4-DMonitoring, RegularBack in compliance
  14. 2022-01-01Heptachlor epoxideMonitoring, RegularBack in compliance
  15. 2022-01-01HeptachlorMonitoring, RegularBack in compliance
  16. 2022-01-012, 3, 7, 8-TcddMonitoring, RegularBack in compliance
  17. 2022-01-01LassoMonitoring, RegularBack in compliance
  18. 2022-01-01AtrazineMonitoring, RegularBack in compliance
  19. 2022-01-01CarbofuranMonitoring, RegularBack in compliance
  20. 2022-01-01HexachlorocyclopentadieneMonitoring, RegularBack in compliance
  21. 2022-01-01DinosebMonitoring, RegularBack in compliance
  22. 2022-01-01PicloramMonitoring, RegularBack in compliance
  23. 2022-01-01Di(2-ethylhexyl) phthalateMonitoring, RegularBack in compliance
  24. 2022-01-01SimazineMonitoring, RegularBack in compliance
  25. 2022-01-01OxamylMonitoring, RegularBack in compliance
Show the other 74 entries
  1. 2022-01-01Di(2-ethylhexyl) adipateMonitoring, RegularBack in compliance
  2. 2022-01-01GlyphosateMonitoring, RegularBack in compliance
  3. 2022-01-01EndothallMonitoring, RegularBack in compliance
  4. 2022-01-01DiquatMonitoring, RegularBack in compliance
  5. 2022-01-01DalaponMonitoring, RegularBack in compliance
  6. 2022-01-01ToxapheneMonitoring, RegularBack in compliance
  7. 2022-01-01MethoxychlorMonitoring, RegularBack in compliance
  8. 2022-01-01Bhc-GammaMonitoring, RegularBack in compliance
  9. 2022-01-01EndrinMonitoring, RegularBack in compliance
  10. 2022-01-01Revised Total Coliform RuleMONBack in compliance
  11. 2021-12-14E. ColiMonitoring, Source Water (GWR)Back in compliance
  12. 2021-12-01Revised Total Coliform RuleMONBack in compliance
  13. 2021-10-01Revised Total Coliform RuleMONBack in compliance
  14. 2021-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  15. 2021-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  16. 2020-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  17. 2020-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  18. 2017-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  19. 2017-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  20. 2017-01-01NitrateMonitoring, RegularBack in compliance
  21. 2016-03-01Coliform (TCR)Monitoring, Routine Major (TCR)Back in compliance
  22. 2015-12-23Groundwater Rule ×3Failure To Address DeficiencyBack in compliance
  23. 2015-12-01Coliform (TCR)Monitoring, Routine Major (TCR)Back in compliance
  24. 2015-09-22Unknown contaminantSanitary Survey (TCR)Open
  25. 2015-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  26. 2015-01-01NitrateMonitoring, RegularBack in compliance
  27. 2014-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  28. 2014-01-01StyreneMonitoring, RegularBack in compliance
  29. 2014-01-01EthylbenzeneMonitoring, RegularBack in compliance
  30. 2014-01-01TolueneMonitoring, RegularBack in compliance
  31. 2014-01-01BenzeneMonitoring, RegularBack in compliance
  32. 2014-01-01ChlorobenzeneMonitoring, RegularBack in compliance
  33. 2014-01-01TetrachloroethyleneMonitoring, RegularBack in compliance
  34. 2014-01-011,1,2-TrichloroethaneMonitoring, RegularBack in compliance
  35. 2014-01-01TrichloroethyleneMonitoring, RegularBack in compliance
  36. 2014-01-011,2-DichloropropaneMonitoring, RegularBack in compliance
  37. 2014-01-01Carbon tetrachlorideMonitoring, RegularBack in compliance
  38. 2014-01-011,1,1-TrichloroethaneMonitoring, RegularBack in compliance
  39. 2014-01-011,2-DichloroethaneMonitoring, RegularBack in compliance
  40. 2014-01-01trans-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  41. 2014-01-011,1-DichloroethyleneMonitoring, RegularBack in compliance
  42. 2014-01-01Vinyl chlorideMonitoring, RegularBack in compliance
  43. 2014-01-01p-DichlorobenzeneMonitoring, RegularBack in compliance
  44. 2014-01-01o-DichlorobenzeneMonitoring, RegularBack in compliance
  45. 2014-01-01DichloromethaneMonitoring, RegularBack in compliance
  46. 2014-01-01Xylenes, TotalMonitoring, RegularBack in compliance
  47. 2014-01-01cis-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  48. 2014-01-011,2,4-TrichlorobenzeneMonitoring, RegularBack in compliance
  49. 2014-01-01Gross Alpha, Excl. Radon and UMonitoring, RegularBack in compliance
  50. 2014-01-01Combined UraniumMonitoring, RegularBack in compliance
  51. 2014-01-01NitrateMonitoring, RegularBack in compliance
  52. 2013-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  53. 2012-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  54. 2012-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  55. 2011-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  56. 2011-01-01SeleniumMonitoring, RegularBack in compliance
  57. 2011-01-01Thallium, TotalMonitoring, RegularBack in compliance
  58. 2011-01-01Beryllium, TotalMonitoring, RegularBack in compliance
  59. 2011-01-01Antimony, TotalMonitoring, RegularBack in compliance
  60. 2011-01-01NickelMonitoring, RegularBack in compliance
  61. 2011-01-01MercuryMonitoring, RegularBack in compliance
  62. 2011-01-01FluorideMonitoring, RegularBack in compliance
  63. 2011-01-01CyanideMonitoring, RegularBack in compliance
  64. 2011-01-01ChromiumMonitoring, RegularBack in compliance
  65. 2011-01-01CadmiumMonitoring, RegularBack in compliance
  66. 2011-01-01BariumMonitoring, RegularBack in compliance
  67. 2011-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  68. 2010-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  69. 2009-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  70. 2008-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  71. 2007-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  72. 2007-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  73. 2005-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  74. 2003-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance

System details

Population served105
Service connections43
Water sourceGroundwater
System typeCommunity Water System
OwnerPrivate
StatusActive
CityFairbanks
EPA ZIP on file99701

Areas served

  • Fairbanks, Fairbanks North Star Borough

Reading this record

Rainbow Valley MHP is a community water system that draws from groundwater and serves about 105 people in Fairbanks, Alaska. 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.