Water Quality: Post Falls, ID

12 water systems • 42,169 people served

Multiple Health Violations
512
Total Violations
4
Health-Based Violations
12
Water Systems
42,169
Population Served

Water Quality Summary

Post Falls is served by 12 public water systems with a combined service population of 42,169 people, and has 512 EPA Safe Drinking Water Act violations on record. Critically, 4 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Post Falls's violation count is 285% above the national average for Idaho. Contaminants associated with violations include E. coli.

Contaminants Found

E. coli

Causes gastrointestinal illness; certain strains (e.g., O157:H7) can cause severe kidney failure and death.

Common source: Fecal contamination from humans or animals entering the water supply

EPA limit: Zero (no E. coli permitted in drinking water)

Water Systems Serving Post Falls

System Name PWSID Source Population Violations
POST FALLS CITY OF ID1280147 Groundwater 20,285 408
EAST GREENACRES IRRIGATION DIST ID1280064 Groundwater 11,165 36
ROSS POINT WATER DIST ID1280163 Groundwater 8,965 0
PINE VILLA PARK AND WATER ASSN ID1280142 Groundwater 500 4
ROYAL HIGHLAND WATER SYSTEM ID1280164 Groundwater 275 2
HAUSER LAKE HEIGHTS ID1280289 Groundwater 257 9
SAINT DOMINIC SCHOOL ID1280247 Groundwater 228 23
MCGUIRE ESTATES WATER USERS ID1280118 Groundwater 158 5
SOUTH RIVER WATER ASSN ID1280155 Groundwater 150 4
HIGHWAY 54 WATER ASSOCIATION, INC ID1280221 Groundwater 100 10
TRAILS END ESTATES ID1280310 Groundwater 46 8
HIDDEN HILL MOBILE HOME PARK ID1280092 Groundwater 40 3

Concerned About Your Water?

A home water filter can remove common contaminants. NSF-certified filters are tested against EPA standards.

Consider a reverse osmosis system for comprehensive filtration or a carbon filter for basic improvement.

Other Cities in Idaho

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Data Sources

Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). Data includes all recorded violations for active community water systems.

Verify at epa.govSearch ECHO for ID