Community Water System · PWSID 105300141

Sulwhanon

Serves 150 peopleGroundwaterOwner: Native AmericanDeming, Washington
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On record since 2010: 149 violations. 1 over the limit · 6 treatment lapses · 123 missed or late tests · 19 notices or reports. Most recent began 2024-01-01.

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

1Over the limit
6Treatment lapse
123Missed or late test
19Notice or report

More violations on record than 98% of active water systems in Washington. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

20052010 · Notice or report: 120102011 · Missed or late test: 42011 · Notice or report: 22012 · Notice or report: 22013 · Missed or late test: 12013 · Notice or report: 22014 · Missed or late test: 102014 · Missed or late test: 102014 · Notice or report: 22015 · Missed or late test: 22015 · Notice or report: 220152016 · Over the limit: 12016 · Treatment lapse: 22016 · Missed or late test: 22016 · Notice or report: 22017 · Treatment lapse: 12017 · Missed or late test: 692017 · Missed or late test: 692017 · Missed or late test: 692017 · Missed or late test: 692017 · Missed or late test: 692017 · Missed or late test: 692017 · Missed or late test: 692017 · Missed or late test: 692017 · Missed or late test: 692017 · Missed or late test: 692017 · Missed or late test: 692017 · Missed or late test: 692018 · Missed or late test: 72018 · Missed or late test: 72018 · Notice or report: 22019 · Treatment lapse: 32019 · Missed or late test: 82019 · Missed or late test: 82019 · Notice or report: 12020 · Missed or late test: 320202021 · Missed or late test: 22021 · Notice or report: 22022 · Missed or late test: 52023 · Missed or late test: 82023 · Missed or late test: 82023 · Notice or report: 12024 · Missed or late test: 22025
One square ≈ 6 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
<1% over the limit · 14% treatment lapse · 683% missed or late test · 12313% notice or report · 19

Across Washington, 88% of violations are missed or late tests and 3% 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 10 results on file · action level 15 ppb

170 ppb
75 ppb
37.4 ppb
21 ppb
6.2 ppb
4.2 ppb
2.3 ppb
2 ppb
1.7 ppb
0 ppb

Every violation on record

  1. 2024-01-01NitrateMonitoring, RegularBack in compliance
  2. 2024-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  3. 2023-10-01NitrateMonitoring, RegularBack in compliance
  4. 2023-08-16E. ColiMonitoring, Source Water (GWR)Back in compliance
  5. 2023-07-01NitrateMonitoring, RegularBack in compliance
  6. 2023-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  7. 2023-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  8. 2023-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  9. 2023-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  10. 2023-01-01NitrateMonitoring, RegularBack in compliance
  11. 2023-01-01Lead and Copper RuleInitial Tap Sampling for Pb and CuBack in compliance
  12. 2022-10-01NitrateMonitoring, RegularBack in compliance
  13. 2022-07-01NitrateMonitoring, RegularBack in compliance
  14. 2022-07-01Lead and Copper RuleInitial Tap Sampling for Pb and CuBack in compliance
  15. 2022-01-01NitrateMonitoring, RegularBack in compliance
  16. 2022-01-01Lead and Copper RuleInitial Tap Sampling for Pb and CuBack in compliance
  17. 2021-10-01NitrateMonitoring, RegularBack in compliance
  18. 2021-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  19. 2021-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  20. 2021-01-31Lead and Copper RuleLead Consumer NoticeBack in compliance
  21. 2020-04-02Lead and Copper RuleLead Consumer NoticeBack in compliance
  22. 2020-01-01AsbestosMonitoring, RegularPeriod ended · no return to compliance on file
  23. 2020-01-01NitrateMonitoring, RegularBack in compliance
  24. 2019-12-13Revised Total Coliform RuleTTBack in compliance
  25. 2019-11-20E. ColiMonitoring, Source Water (GWR)Back in compliance
Show the other 123 entries
  1. 2019-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  2. 2019-07-01Lead and Copper RuleOCCT/SOWT Study/RecommendationBack in compliance
  3. 2019-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  4. 2019-06-01Revised Total Coliform RuleMONBack in compliance
  5. 2019-05-01Revised Total Coliform RuleMONBack in compliance
  6. 2019-04-03Lead and Copper RuleLead Consumer NoticeBack in compliance
  7. 2019-03-02Lead and Copper RulePublic EducationBack in compliance
  8. 2019-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  9. 2019-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  10. 2019-01-01Revised Total Coliform RuleMONBack in compliance
  11. 2018-10-01Revised Total Coliform RuleMONBack in compliance
  12. 2018-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  13. 2018-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  14. 2018-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  15. 2018-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  16. 2018-03-01Revised Total Coliform RuleMONBack in compliance
  17. 2018-02-01Revised Total Coliform RuleMONBack in compliance
  18. 2018-01-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  19. 2018-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  20. 2017-11-01Revised Total Coliform RuleMONBack in compliance
  21. 2017-10-01Revised Total Coliform RuleMONBack in compliance
  22. 2017-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  23. 2017-04-01Lead and Copper RuleOCCT/SOWT Study/RecommendationBack in compliance
  24. 2017-01-01ChlordaneMonitoring, RegularBack in compliance
  25. 2017-01-01Ethylene DibromideMonitoring, RegularBack in compliance
  26. 2017-01-011, 2-Dibromo-3-ChloropropaneMonitoring, RegularBack in compliance
  27. 2017-01-01Total Polychlorinated Biphenyls (PCB)Monitoring, RegularBack in compliance
  28. 2017-01-01PentachlorophenolMonitoring, RegularBack in compliance
  29. 2017-01-01Benzo(a)pyreneMonitoring, RegularBack in compliance
  30. 2017-01-01HexachlorobenzeneMonitoring, RegularBack in compliance
  31. 2017-01-012, 4, 5-TpMonitoring, RegularBack in compliance
  32. 2017-01-012, 4-DMonitoring, RegularBack in compliance
  33. 2017-01-01Heptachlor epoxideMonitoring, RegularBack in compliance
  34. 2017-01-01HeptachlorMonitoring, RegularBack in compliance
  35. 2017-01-012, 3, 7, 8-TcddMonitoring, RegularBack in compliance
  36. 2017-01-01LassoMonitoring, RegularBack in compliance
  37. 2017-01-01AtrazineMonitoring, RegularBack in compliance
  38. 2017-01-01CarbofuranMonitoring, RegularBack in compliance
  39. 2017-01-01HexachlorocyclopentadieneMonitoring, RegularBack in compliance
  40. 2017-01-01DinosebMonitoring, RegularBack in compliance
  41. 2017-01-01PicloramMonitoring, RegularBack in compliance
  42. 2017-01-01Di(2-ethylhexyl) phthalateMonitoring, RegularBack in compliance
  43. 2017-01-01SimazineMonitoring, RegularBack in compliance
  44. 2017-01-01OxamylMonitoring, RegularBack in compliance
  45. 2017-01-01Di(2-ethylhexyl) adipateMonitoring, RegularBack in compliance
  46. 2017-01-01GlyphosateMonitoring, RegularBack in compliance
  47. 2017-01-01EndothallMonitoring, RegularBack in compliance
  48. 2017-01-01DiquatMonitoring, RegularBack in compliance
  49. 2017-01-01DalaponMonitoring, RegularBack in compliance
  50. 2017-01-01ToxapheneMonitoring, RegularBack in compliance
  51. 2017-01-01MethoxychlorMonitoring, RegularBack in compliance
  52. 2017-01-01Bhc-GammaMonitoring, RegularBack in compliance
  53. 2017-01-01EndrinMonitoring, RegularBack in compliance
  54. 2017-01-01ArsenicMonitoring, RegularBack in compliance
  55. 2017-01-01SeleniumMonitoring, RegularBack in compliance
  56. 2017-01-01AsbestosMonitoring, RegularBack in compliance
  57. 2017-01-01Thallium, TotalMonitoring, RegularBack in compliance
  58. 2017-01-01Beryllium, TotalMonitoring, RegularBack in compliance
  59. 2017-01-01Antimony, TotalMonitoring, RegularBack in compliance
  60. 2017-01-01NickelMonitoring, RegularBack in compliance
  61. 2017-01-01MercuryMonitoring, RegularBack in compliance
  62. 2017-01-01FluorideMonitoring, RegularBack in compliance
  63. 2017-01-01CyanideMonitoring, RegularBack in compliance
  64. 2017-01-01ChromiumMonitoring, RegularBack in compliance
  65. 2017-01-01CadmiumMonitoring, RegularBack in compliance
  66. 2017-01-01BariumMonitoring, RegularBack in compliance
  67. 2017-01-01StyreneMonitoring, RegularBack in compliance
  68. 2017-01-01EthylbenzeneMonitoring, RegularBack in compliance
  69. 2017-01-01TolueneMonitoring, RegularBack in compliance
  70. 2017-01-01BenzeneMonitoring, RegularBack in compliance
  71. 2017-01-01ChlorobenzeneMonitoring, RegularBack in compliance
  72. 2017-01-01TetrachloroethyleneMonitoring, RegularBack in compliance
  73. 2017-01-011,1,2-TrichloroethaneMonitoring, RegularBack in compliance
  74. 2017-01-01TrichloroethyleneMonitoring, RegularBack in compliance
  75. 2017-01-011,2-DichloropropaneMonitoring, RegularBack in compliance
  76. 2017-01-01Carbon tetrachlorideMonitoring, RegularBack in compliance
  77. 2017-01-011,1,1-TrichloroethaneMonitoring, RegularBack in compliance
  78. 2017-01-011,2-DichloroethaneMonitoring, RegularBack in compliance
  79. 2017-01-01trans-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  80. 2017-01-011,1-DichloroethyleneMonitoring, RegularBack in compliance
  81. 2017-01-01Vinyl chlorideMonitoring, RegularBack in compliance
  82. 2017-01-01p-DichlorobenzeneMonitoring, RegularBack in compliance
  83. 2017-01-01o-DichlorobenzeneMonitoring, RegularBack in compliance
  84. 2017-01-01DichloromethaneMonitoring, RegularBack in compliance
  85. 2017-01-01Xylenes, TotalMonitoring, RegularBack in compliance
  86. 2017-01-01cis-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  87. 2017-01-011,2,4-TrichlorobenzeneMonitoring, RegularBack in compliance
  88. 2017-01-01NitrateMonitoring, RegularBack in compliance
  89. 2017-01-01Lead and Copper RuleLead Consumer NoticeBack in compliance
  90. 2016-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  91. 2016-07-29E. ColiMonitoring, Source Water (GWR)Back in compliance
  92. 2016-07-08Groundwater Rule ×2Failure To Address DeficiencyBack in compliance
  93. 2016-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  94. 2016-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  95. 2016-05-01Revised Total Coliform RuleMCLBack in compliance
  96. 2015-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  97. 2015-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  98. 2015-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  99. 2015-01-01NitrateMonitoring, RegularBack in compliance
  100. 2014-11-01Coliform (TCR)Monitoring, Routine Major (TCR)Back in compliance
  101. 2014-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  102. 2014-09-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  103. 2014-09-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  104. 2014-07-01Coliform (TCR)Monitoring, Routine Major (TCR)Back in compliance
  105. 2014-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  106. 2014-02-01Coliform (TCR)Monitoring, Routine Major (TCR)Back in compliance
  107. 2014-01-01Combined Radium (-226 and -228)Monitoring, RegularBack in compliance
  108. 2014-01-01Combined UraniumMonitoring, RegularBack in compliance
  109. 2014-01-01Gross Alpha, Excl. Radon and UMonitoring, RegularBack in compliance
  110. 2014-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  111. 2014-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  112. 2013-12-01Coliform (TCR)Monitoring, Routine Major (TCR)Back in compliance
  113. 2013-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  114. 2013-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  115. 2012-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  116. 2012-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  117. 2011-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  118. 2011-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  119. 2011-01-012, 3, 7, 8-TcddMonitoring, RegularBack in compliance
  120. 2011-01-01Combined Radium (-226 and -228)Monitoring, RegularBack in compliance
  121. 2011-01-01Combined UraniumMonitoring, RegularBack in compliance
  122. 2011-01-01Gross Alpha, Excl. Radon and UMonitoring, RegularBack in compliance
  123. 2010-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance

System details

Population served150
Service connections27
Water sourceGroundwater
System typeCommunity Water System
OwnerNative American
StatusActive
CityDeming
EPA ZIP on file98244

Areas served

  • Sverson

Reading this record

Sulwhanon is a community water system that draws from groundwater and serves about 150 people in Deming, Washington. 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.