Non-Transient Non-Community · PWSID ID4010003

Boise Stage Stop

Serves 100 peopleGroundwaterOwner: PrivateBoise, Idaho
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 1998: 22 violations. 2 over the limit · 4 treatment lapses · 14 missed or late tests · 2 notices or reports. Most recent began 2024-07-01.

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

2Over the limit
4Treatment lapse
14Missed or late test2 open
2Notice or report1 open

More violations on record than 87% of active water systems in Idaho. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

1998 · Missed or late test: 12000 · Missed or late test: 12000200520102011 · Missed or late test: 12014 · Notice or report: 120152016 · Treatment lapse: 22016 · Treatment lapse: 22017 · Treatment lapse: 12017 · Missed or late test: 12017 · Notice or report: 12018 · Treatment lapse: 12018 · Missed or late test: 42018 · Missed or late test: 42018 · Missed or late test: 42018 · Missed or late test: 42019 · Missed or late test: 32019 · Missed or late test: 32019 · Missed or late test: 32020 · Over the limit: 22020 · Over the limit: 220202022 · Missed or late test: 12024 · Missed or late test: 22024 · Missed or late test: 22025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
9% over the limit · 218% treatment lapse · 464% missed or late test · 149% notice or report · 2

Across Idaho, 80% of violations are missed or late tests and 5% are water over a limit.

How far over the limit

at the limit2×5×10×100×+Nitrate2020-04-01 · Nitrate: measured 13.00 MG/L vs limit 10.00 MG/L (1.3×)2020-01-01 · Nitrate: measured 12.00 MG/L vs limit 10.00 MG/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.

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 14 results on file · action level 15 ppb

0 ppb
0 ppb
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Open now (3)

  1. 2019-01-14E. Coli ×2Monitoring, Source Water (GWR)Open
  2. 2014-09-01Public NoticePN Violation for NPDWR ViolationOpen

Every violation on record

  1. 2024-07-01Revised Total Coliform RuleMONBack in compliance
  2. 2024-06-01Revised Total Coliform RuleMONBack in compliance
  3. 2022-06-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  4. 2020-04-01NitrateMCL, Averagemeasured 13.00 MG/L · limit 10.00 MG/LBack in compliance
  5. 2020-01-01NitrateMCL, Averagemeasured 12.00 MG/L · limit 10.00 MG/LBack in compliance
  6. 2019-07-01Lead and Copper RuleInitial Tap Sampling for Pb and CuBack in compliance
  7. 2019-01-14E. Coli ×2Monitoring, Source Water (GWR)Open
  8. 2018-12-10E. ColiMonitoring, Source Water (GWR)Back in compliance
  9. 2018-07-01Revised Total Coliform RuleMONBack in compliance
  10. 2018-06-01Revised Total Coliform RuleMONBack in compliance
  11. 2018-05-01Revised Total Coliform RuleMONBack in compliance
  12. 2018-02-02Revised Total Coliform RuleTTBack in compliance
  13. 2017-09-19Public NoticePN Violation for NPDWR ViolationBack in compliance
  14. 2017-08-01Revised Total Coliform RuleMONBack in compliance
  15. 2017-06-09Revised Total Coliform RuleTTBack in compliance
  16. 2016-12-23Revised Total Coliform RuleTTBack in compliance
  17. 2016-12-05Revised Total Coliform RuleTTBack in compliance
  18. 2014-09-01Public NoticePN Violation for NPDWR ViolationOpen
  19. 2011-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  20. 2000-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  21. 1998-07-01Lead and Copper RuleInitial Tap Sampling for Pb and CuBack in compliance

System details

Population served100
Service connections1
Water sourceGroundwater
System typeNon-Transient Non-Community
OwnerPrivate
StatusActive
CityBoise
EPA ZIP on file83716

Areas served

  • Ada County

Reading this record

Boise Stage Stop is a non-transient non-community that draws from groundwater and serves about 100 people in Boise, Idaho. 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.