Is Sand Coulee, Montana tap water safe?
4 water systems report serving Sand Coulee. Your water depends on which one serves your address. Check your bill if unsure.
A
Tracy Water Users Corp
Serves 200 people · Groundwater · Full report →
No health-based violations in the last 5 years; 1 monitoring/reporting violation; No UCMR 5 PFAS results on file; Latest lead 90th percentile on file is from 2019 (older than 5 years, not graded).
B
Sand Coulee Water Users District
Serves 180 people · Groundwater · Full report →
1 health-based violation in the last 5 years; 3 monitoring/reporting violations; 3 not yet resolved; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2024).
A
Big Stone Colony Inc
Serves 130 people · Groundwater · Full report →
No health-based violations in the last 5 years; 2 monitoring/reporting violations; No UCMR 5 PFAS results on file; Latest lead 90th percentile on file is from 2019 (older than 5 years, not graded).
A
Grassland Colony
Serves 80 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).