Tapcensus

Montana

Richland County drinking water quality

16 active public water systems serve 7,074 people in Richland County. 2 are compliant, 14 had at least one EPA violation in the past three years, 1 is a designated serious violator, and 2 carry a health flag.

Active systems 16 5 community systems
People served 7,074 by public water systems
Systems with violations 14 88% of active systems, past 3 years
Serious violators 1 2 systems carry a health flag

Needs attention

Richland CO Valley View Wua MT0000514 · Sidney · Community water system · Serves 85 3 rules violated in the past three years. Unresolved: Stage 2 Disinfectants and Disinfection Byproducts Rule.
Rau School District NO 21 MT0003089 · Sidney · Non-Transient non-community system · Serves 80 3 rules violated in the past three years. Unresolved: Ground Water Rule and Lead and Copper Rule.

Community water systems

5 systems, largest first
SystemServesStatusRules violated, 3 yrUnresolved
Sidney City of
Sidney
5,000 0 0
Fairview Town of
Fairview
1,000 2 0
Lambert Sewer and Water Assn
Lambert
150 4 0
Richland CO Valley View Wua
Sidney
85 3 1
Mount Pleasant Estates
Sidney
45 1 0
Non-community systems (11: schools, campgrounds, workplaces, restaurants)

These systems serve places people visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Redwood Park Work Camp Phase 1
Fairview
150 0 0
Sidney Richland County Airport Unapprove
Sidney
115 2 0
Savage Public School
Savage
114 2 0
Cattlemen's Cafe
Sidney
100 2 0
Rau School District NO 21
Sidney
80 3 2
Valley Fuel and Supply
Savage
75 1 0
Central Water Conditioning
Sidney
50 2 0
America First Rvp LLC
30 1 0
Four Seasons Trailer Court
Sidney
30 1 0
Reynolds Market Sidney
Sidney
25 1 1
Sidney Gymnastics Club
Sidney
25 2 1
Inactive systems (34, no longer operating or reporting)

Kept for the record and excluded from the county totals above. Browse inactive systems.

About this data

Totals cover active systems. Systems serving more than one county are counted in each county. EPA counts the rules a system was in violation of, not the individual violations; one rule can carry several.

Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Montana records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet.