Montana Drinking Water Alerts — EPA & State Boil-Water Notices
Live data
Updated continuously
The current reading for this indicator updates live on the
Montana Gateway dashboard.
The data feed below is fetched from EPA SDWIS · state drinking water program via the
public /api/drinking-water endpoint.
Loading current data…
What this means
The U.S. has ~150,000 public water systems regulated under the federal Safe Drinking Water Act, which covers lead, copper, bacteria, nitrate, arsenic, PFAS, and disinfection by-products. Each state runs its own SDWA primacy program that handles violations, boil-water notices, and lead-action exceedances. EPA SDWIS aggregates the data.
What you can do
- During a Boil Water Advisory: boil water 1 full minute before drinking, cooking, ice, or brushing teeth.
- For lead concerns: run cold water 30 seconds before drinking if a faucet has been unused for several hours.
- Get your annual Consumer Confidence Report from your water utility every July.
- For wells: test annually for bacteria and nitrate, every 3 years for arsenic, every 5 years for radon.
Official sources & resources
More environment indicators