PlainWater
Counties → Idaho

Kootenai County, Idaho

Water Systems
195
Population Served
178,648
Total Violations
7,546
1,230 health-based
PFAS Detected
1
of 8 tested

Violation Analysis

94.4%
Systems with Violations
38.7
Avg Violations per System
16.3%
Health-Based Violations

Water Source Types

GW
46 systems (24%)
SW
4 systems (2%)

PFAS Contamination

8
Systems Tested
1
PFAS Detected
12.5%
Detection Rate

PFAS (per- and polyfluoroalkyl substances) are persistent chemicals found in drinking water. The EPA has set enforceable limits for several PFAS compounds under UCMR5 monitoring.

Compliance Snapshot

Kootenai Idaho water systems by violation status, EPA SDWIS records.

No violations on record (3) One or more violations (47)

Violation history is cumulative, many flagged systems have already returned to compliance. Detail pages show per-system context.

Water Systems

System Name Population Violations PFAS
Coeur D Alene City Of 54,115 90 Clean
Post Falls City Of 20,285 658 Clean
East Greenacres Irrigation Dist 11,165 33 Clean
Rathdrum City Of 10,358 26 Detected
Hayden Lake Irrigation Dist 9,375 34 Clean
Ross Point Water Dist 8,965 7 Clean
Avondale Irrigation Dist 8,785 49 Clean
Hillside Service Area 4,140 72 -
Silverwood 3,930 88 -
Rimrock Service Area 3,493 31 -
Spirit Lake City Of 2,825 32 -
Dalton Water Assn Inc 2,598 24 -
Twin Lakes Service Area 2,023 17 -
Idpr Farragut State Park 2,000 4 -
Hauser Lake Water Assn Inc 1,350 47 -
Huetter Poe Itd 1,200 50 -
Hayden Pines Grouse Meadows 1,188 9 -
Bayview Water and Sewer Dist 1,175 36 -
Remington Rec Water Dist 1,104 8 -
Black Rock Utilities Inc 1,014 34 -
Athol City Of 990 21 -
Greenferry Water & Sewer District 978 12 -
Gem State - Spirit Lake East 843 34 -
Kootenai County Water Dist 1 843 123 -
Gem State - Bar Circle S Ranch 633 41 -
Real Life Ministries North 600 0 -
Worley City Of 591 71 -
Chilco Service Area 563 12 -
Pine Villa Park and Water Assn 500 63 -
Emerald Estates Water Assn Inc 485 39 -
Holiday Acres Water Assn 480 97 -
Gozzer Ranch 470 47 -
Cave Bay Community System 458 107 -
Harrison City Of 456 132 -
Pineview Estates Water Dist 450 8 -
New Life Community Church 450 34 -
Lone Mountain Estates 448 0 -
Mountain View Terrace 445 8 -
Gem State - Bitterroot Water Company 428 22 -
Garwood Water Coop 398 29 -
Leisure Park 381 14 -
Troy Hoffman Water Corp 367 9 -
Harbor View Estates Water & Sewer Dist 355 6 -
Conkling Park Water Assn 309 29 -
Rose Lake Water Assn 300 133 -
Elkhorn Ranch 278 4 -
Lost Creek Estates Water 277 0 -
Chateaux Water Assn Inc 275 26 -
Royal Highland Water System 275 8 -
Arrow Point Park 275 29 -

Other Counties in Idaho

Ada County
87 systems · 511,181 served · 5,380 violations
Canyon County
143 systems · 214,619 served · 9,692 violations
Bonneville County
135 systems · 138,969 served · 4,633 violations
Bannock County
49 systems · 83,349 served · 2,778 violations
Twin Falls County
54 systems · 76,016 served · 2,851 violations
Madison County
33 systems · 50,343 served · 998 violations

Drinking Water Guides

Frequently Asked Questions

How many water violations are in Kootenai County? ▼
Kootenai County has 7,546 total drinking water violations across 195 water systems, of which 1,230 are health-based violations. 94.4% of systems have at least one violation.
How many people get water from Kootenai County systems? ▼
Water systems in Kootenai County serve approximately 178,648 people through 195 public water systems.
Has PFAS been detected in Kootenai County water? ▼
Of 8 water systems tested for PFAS in Kootenai County, 1 had PFAS detected (12.5% detection rate).
What types of water sources supply Kootenai County? ▼
Water systems in Kootenai County use GW (46 systems), SW (4 systems) as their primary water sources.
Are health-based violations serious? ▼
Health-based violations indicate that drinking water exceeded Maximum Contaminant Levels (MCLs) set by the EPA or failed treatment technique requirements. 16.3% of Kootenai County's violations are health-based. Not all violations indicate immediate health risk, but they require corrective action.
Data Sources & Methodology

Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). PFAS testing data from the UCMR5 monitoring program. SDWIS tracks all public water systems regulated under the Safe Drinking Water Act.

Violations are categorized as health-based (Maximum Contaminant Level exceedances, treatment technique failures) or monitoring/reporting violations. Not all violations indicate an immediate health risk.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This page draws directly on EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.