PlainWater
Counties → Indiana

Hamilton County, Indiana

Water Systems
66
Population Served
229,377
Total Violations
6,714
569 health-based
PFAS Detected
2
of 4 tested

Violation Analysis

97.0%
Systems with Violations
101.7
Avg Violations per System
8.5%
Health-Based Violations

Water Source Types

GW
48 systems (73%)
SW
2 systems (3%)

PFAS Contamination

4
Systems Tested
2
PFAS Detected
50.0%
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

Hamilton Indiana water systems by violation status, EPA SDWIS records.

No violations on record (1) One or more violations (49)

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
Carmel Water Department 99,927 23 Clean
Citizens Water of Westfield, LLC 61,493 304 Clean
Indiana American Water - Noblesville 45,575 1 Detected
Cicero Water Department 5,607 19 Clean
Indiana American Water - Sheridan 4,435 9 -
Ruoff Music Center 2,000 64 -
Arcadia Water Department 1,515 31 -
Bethel Lutheran Church 860 9 -
Atlanta Water Department 735 60 -
Emmanuel United Methodist Church 450 406 -
Durbin School 415 41 -
Becks Superior Hybrids 408 15 -
Hamilton Co Parks & Rec-White River Camp 400 26 -
Carmel Clay Water 393 6 -
Ritz Charles 390 192 -
Suburban Estates, LLC 350 144 -
Crossroads Community Church 252 128 -
Kids on the Rock Daycare 250 436 -
Mooreco IV, Dba McDonalds - Fishers 222 153 -
Sheridan Six Points Wesleyan 210 12 -
Legacy Bible Church, Inc. 202 13 -
Purgatory Golf Club 200 26 -
Flowing Well 200 14 -
McClures Store #65 164 37 -
Faith Temple Dba Fuel Church 152 48 -
East Union Christian Church 150 25 -
Stony Creek Golf Course - Shelter 133 12 -
Hamilton County Regional Utility 125 0 -
Indiana Academy 113 233 -
Strawtown Koteewi Park 104 15 -
Family River Life, Inc 100 142 -
Eagletown Estates Mobile Home Park 97 55 -
Eagletown Roadside Cafe 93 178 -
Tall Timbers Mobile Home Park 90 78 -
Diabetes Youth Foundation - Bath/Dining 86 96 -
Diabetes Youth Foundation 86 82 -
Reynolds Farm Equipment 80 233 -
Bear Slide Golf Club 75 42 -
Martin Marietta - Noblesville Stone 71 16 -
Clarksville Christian 70 6 -
Spectrum Brands (North) 70 315 -
Spectrum Brands (South) 70 283 -
Open Door Free Methodist Church 65 68 -
Country Moon Winery 62 13 -
Victory Chapel Community Church 60 72 -
The Cooper House, Inc 52 11 -
Lifepointe Church 52 55 -
Palomino Ballroom, Inc. 50 15 -
Journey Church 50 48 -
Indiana Trap Shooters Assoc. 50 254 -

Other Counties in Indiana

Marion County
56 systems · 949,929 served · 5,652 violations
Lake County
108 systems · 539,424 served · 12,533 violations
Allen County
91 systems · 324,113 served · 5,221 violations
St. Joseph County
221 systems · 218,797 served · 16,354 violations
Vanderburgh County
6 systems · 195,582 served · 332 violations
Clark County
11 systems · 186,708 served · 1,313 violations

Drinking Water Guides

Frequently Asked Questions

How many water violations are in Hamilton County? ▼
Hamilton County has 6,714 total drinking water violations across 66 water systems, of which 569 are health-based violations. 97.0% of systems have at least one violation.
How many people get water from Hamilton County systems? ▼
Water systems in Hamilton County serve approximately 229,377 people through 66 public water systems.
Has PFAS been detected in Hamilton County water? ▼
Of 4 water systems tested for PFAS in Hamilton County, 2 had PFAS detected (50.0% detection rate).
What types of water sources supply Hamilton County? ▼
Water systems in Hamilton County use GW (48 systems), SW (2 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. 8.5% of Hamilton 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.