Community Water System · PWSID 105300048

Upper Skagit

Serves 365 peopleGroundwaterOwner: Native AmericanMount Vernon, Washington
Nothing open that measures the water, but 3 open testing or paperwork violations.

A missed test is not evidence of bad water. It also is not evidence of good water: for that period nobody checked.

On record since 2005: 22 violations. 16 missed or late tests · 6 notices or reports. Most recent began 2025-07-01.

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
0Treatment lapse
16Missed or late test3 open
6Notice or report

More violations on record than 88% 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

2005 · Missed or late test: 12005 · Notice or report: 120052006 · Notice or report: 12007 · Notice or report: 12008 · Notice or report: 120102013 · Missed or late test: 22013 · Missed or late test: 22014 · Missed or late test: 12014 · Notice or report: 12015 · Missed or late test: 120152016 · Missed or late test: 32016 · Missed or late test: 32016 · Missed or late test: 32016 · Notice or report: 12017 · Missed or late test: 12018 · Missed or late test: 32018 · Missed or late test: 32018 · Missed or late test: 320202023 · Missed or late test: 12024 · Missed or late test: 12025 · Missed or late test: 22025 · Missed or late test: 22025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
73% missed or late test · 1627% notice or report · 6

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 9 results on file · action level 15 ppb

4 ppb
4 ppb
1 ppb
1 ppb
1 ppb
0.1 ppb
0 ppb
0 ppb
0 ppb

Open now (3)

  1. 2025-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/ROpen
  2. 2025-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/ROpen
  3. 2024-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/ROpen

Every violation on record

  1. 2025-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/ROpen
  2. 2025-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/ROpen
  3. 2024-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/ROpen
  4. 2023-10-31Lead and Copper RuleLead Consumer NoticeBack in compliance
  5. 2018-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  6. 2018-05-01Revised Total Coliform RuleMONBack in compliance
  7. 2018-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  8. 2017-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  9. 2016-12-01Revised Total Coliform RuleMONBack in compliance
  10. 2016-11-14Revised Total Coliform RuleRPTBack in compliance
  11. 2016-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  12. 2016-10-01Revised Total Coliform RuleMONBack in compliance
  13. 2015-01-01Lead and Copper RuleLead Consumer NoticeBack in compliance
  14. 2014-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  15. 2014-09-01Coliform (TCR)Monitoring, Routine Major (TCR)Back in compliance
  16. 2013-11-01Coliform (TCR)Monitoring, Routine Major (TCR)Back in compliance
  17. 2013-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  18. 2008-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  19. 2007-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  20. 2006-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  21. 2005-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  22. 2005-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance

System details

Population served365
Service connections98
Water sourceGroundwater
System typeCommunity Water System
OwnerNative American
StatusActive
CityMount Vernon
EPA ZIP on file98273

Areas served

  • Sedro Wooley

Reading this record

Upper Skagit is a community water system that draws from groundwater and serves about 365 people in Mount Vernon, 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.