Indiana Rural Water Association

The Drinking Water Guidance Manual was written as a cooperative effort between Indiana Department of Environmental Management, Indiana Section of American Water Works Association, and Indiana Rural Water Association. The goal of the Manual is to provide – as the name would imply – guidance on the various aspects of operating a small to medium community or nontransient noncommunity water systems serving 10,000 persons or less.

There are two different versions of this Manual – one for Community Systems and one for Nontransient Noncommunity Systems. These are defined as:

A Public Water System is a public water supply for the provision to the public of piped water for human consumption, if such system has at least fifteen (15) service connections or regularly serves an average of at least twenty-five (25) individuals daily at least sixty (60) days out of the year.

Community system
≥ 15 residential service connections or
≥ 25 year-round residents served

Noncommunity system
≥ 15 non-residential service connections or
≥ 25 non-residents served ≥ 60 days/year

Noncommunity systems
• Nontransient noncommunity
Same ≥ 25 persons ≥ 6 months/year

• Transient noncommunity
Different ≥ 25 persons ≥ 60 days/year

Please download these Manuals for your use. Get in touch with us regarding comments on this publication or suggestions on future projects or topics that would be of benefit to you and your utility. We are here to serve.