PlainWater
Counties → Indiana

St. Joseph County, Indiana

Water Systems
221
Population Served
218,797
Total Violations
16,354
1,205 health-based
PFAS Detected
3
of 7 tested

Violation Analysis

96.8%
Systems with Violations
74.0
Avg Violations per System
7.4%
Health-Based Violations

Water Source Types

GW
50 systems (23%)

PFAS Contamination

7
Systems Tested
3
PFAS Detected
42.9%
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

St. Joseph Indiana 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
South Bend Water Works 115,000 340 Detected
Mishawaka Utilities 49,675 19 Detected
University of Notre Dame 7,400 86 Detected
Walkerton Light & Water 2,262 38 Clean
Sisters of Holy Cross-St. Marys College 2,111 11 Clean
North Liberty Water Works 1,896 134 -
New Carlisle Water Works 1,861 32 -
The Vineyard Church 1,473 80 -
McDonalds Restaurant 982 372 -
Seven-Eleven #32578 900 95 -
Holy Family Church 900 38 -
Granger St. (Martins Supermrk & Oscos) 880 14 -
Discovery Middle School 848 39 -
Gkpp Inc. 818 13 -
Jsb Petro Inc 755 50 -
Lakeville Water Department 750 31 -
Trinity Evangelical Church 712 31 -
Marsh Village Pantry #5637 707 79 -
Grissom Middle School 687 8 -
Laville JR. & SR. High School 675 53 Clean
Horizon Elementary School 671 31 -
Mishawaka-Penn-Harris Public Library 663 0 -
Aqua Indiana - Wedgewood Park Water Util 645 130 -
Northpoint Elementary School 612 5 -
North Liberty Church of Christ 574 150 -
New Life Church 555 23 -
Oc Center - Subway 520 51 -
Prairie Vista Elementary School 510 8 Clean
Elm Road School 488 0 -
Meadows Edge Elementary School 426 37 -
Christ the King Lutheran Church 424 4 -
Elkhart RV Resort, LLC 410 22 -
Clearwater Village Mobile Home Park 400 112 -
Mary Frank Elementary School 393 0 -
Hamilton Grove 384 310 -
Kingdom Hall of the Jehovahs Witnesses 375 26 -
Walgreens Drugstore #6965 370 51 -
Great Lakes Auto Auction 365 3 -
St. Patrick Park 360 3 -
Trevi 356 121 -
Community Gospel Church 353 19 -
Knollwood Country Club 340 197 -
Holy Family School 320 36 -
Bell-Mart Amoco - Granger 306 22 -
St. Andrews Greek Orthodox Church 300 330 -
Granger Christian School 280 147 -
South Bend Country Club 275 46 -
Michiana Plaza 270 198 -
Dairy Queen - Granger 265 10 -
Kryder-Harr Veterinary Clinic 264 7 -

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
Hamilton County
66 systems · 229,377 served · 6,714 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 St. Joseph County? ▼
St. Joseph County has 16,354 total drinking water violations across 221 water systems, of which 1,205 are health-based violations. 96.8% of systems have at least one violation.
How many people get water from St. Joseph County systems? ▼
Water systems in St. Joseph County serve approximately 218,797 people through 221 public water systems.
Has PFAS been detected in St. Joseph County water? ▼
Of 7 water systems tested for PFAS in St. Joseph County, 3 had PFAS detected (42.9% detection rate).
What types of water sources supply St. Joseph County? ▼
Water systems in St. Joseph County use GW (50 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. 7.4% of St. Joseph 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.