Todd,

We ran into that on a job in the State of Maryland. The AHJ mentioned that
some of the more rural company filled their tankers and the like from ponds.
In this jurisdiction ALL BFPs were RPZs because that's the SOP. I believe he
cited (correctly as I recall) the International Plumbing Code.

Any firemen out there putting backflow preventers on the hydrants prior to
pumping out of them? Or perhaps setting up containment tents around the
hydrant prior to popping the cap off?

Best Regards,
Ken Holsopple
Design Manager 
Rowe Sprinkler Systems, Inc.
570-837-7647

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Todd Williams
- work
Sent: Friday, July 13, 2007 7:14 AM
To: [email protected]
Subject: Backflow: DCDA vs RPZ - part 2

Has anyone run into a determination that and RPZ is required on all 
systems with an FDC because there is no guarantee that the water 
being pumped in is potable (based on an interpretation of the IPC)?

Todd G. Williams, PE
Fire Protection Design/Consulting
Stonington, Connecticut
860-535-2080
www.fpdc.com 

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