Sand Coulee Water Users District
EPA ID: MT0000325 · 180 people served · 1 ZIP code
Compared to the national average for mid-size utilities, Sand Coulee Water Users District sits well above the baseline — five years of EPA monitoring show no violations, no MCL exceedances, and no enforcement actions for the full service territory of 180 people.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for Sand Coulee Water Users District Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Sand Coulee Water Users District serves a community with a median household income of $61,023 and an estimated 512 residents across its service area. Approximately 72% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 41% of the population in this service area is classified as disadvantaged under EPA's EJScreen criteria. Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.
💧 Where Does Your Water Come From?
Sand Coulee Water Users District's water is pumped from underground aquifers. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.
About 1% of homes in Cascade County, Montana rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Wastewater Proximity Note: This service area ranks in the 60th percentile nationally for proximity to wastewater discharge points.
Superfund Proximity Note: This service area ranks in the 80th percentile nationally for proximity to Superfund (NPL) sites. Groundwater sources near contaminated sites may face elevated risk from industrial chemicals.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in Montana
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
Sand Coulee Water Users District (EPA ID: MT0000325) is a community water system in Montana that serves approximately 180 people from groundwater sources.
This system serves ZIP code 59472 in Sand Coulee.
Violation History
Lead & Copper
No Lead and Copper Rule sampling data available for this water system.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
ZIP Codes Served
- 59472 — Sand Coulee
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Sand Coulee Water Users District (MT0000325) on EPA.gov.
Frequently Asked Questions
Is Sand Coulee Water Users District water safe to drink?
Based on EPA records, Sand Coulee Water Users District has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Sand Coulee Water Users District serve?
Sand Coulee Water Users District serves approximately 180 people across 1 ZIP code in Montana.
Where does Sand Coulee Water Users District get its water?
The primary water source is groundwater.