Akron Water Department

Avilla Water Department

Bloomington Utilities

Citizens Utilities

Shady Grove Mobile Home Park

Columbus City Utilities

Tannehill Park, Inc.

Connersville Utilities

Converse Water Works

NSWC Crane

Prestwick Water System

Oakridge Estates

AncillaDomini Sisters

Dyer Water Department

East Chicago Water Department

Elkhart Public Works & Utilities Department

Evansville Water Department

Fairmount Water Works

Fort Wayne Utilities

Northway Water Supply Systems

Renaissance Village

Sunset View Estates

Frankfort Water Works

Country Meadows

Hammond Water Works

Hebron Water Company

Huntingburg Municipal Water Utility

Valley View Estates

Indiana-American Water Company

Indianapolis Water Company

Commonwealth Engineers

Scheider Corporation

Hammond Water Department

Ingalls Water Department

Davis Mobile Home Park

Kigsfort Heights Municipal Water Utility

La Porte City Water Department

Lafayette Water Works

Lebanon Utilities

Logansport Municipal Utilities - Water Treatment Plant

Logansport Municipal Utilites - Well Field

Long Beach Water Department

Marion City Water Works

Beechwood Mobile Home Court, Inc.

Waubee Lake Mobile Home Park

Millersburg

Mishawaka Utilities, Water Division

Monroeville Water Works

Mulberry Water Works

Nappanee Water Utility

New Castle Water Works

South Harrison Water Corporation

Suburban Estates

Orland Water Works

Orleans Water Works

Paoli Water Department

Paragon Water Works

Peru Utilities

Princeton Water Treatment Plant

Redkey Water Treatment Plant

Rochester Water

Scherville

Hamann's Mobile Home Park

South Bend Water Works

Stateline Mobile Home Park

Circle H., Inc.

Tom Harlan Mobile Home Park

Kozy Kourt, Inc.

United Water Indiana, United Water West Lafayette

Valparaiso Department of Water Works

Versailles Water Works

Hide-Away Hills MHP

Westfield Utilities Department

Woodburn Water Works