Response on behalf of Bill Verge, University of Michigan

[Len]

For the University of Michigan for the last ten years, the following
are all annual piping network maintenance and repairs costs; metering
and meter reading; water treatment; TUNNEL and manhole maintenance
and repairs; permits; insulation or insulation renewal. Note that they
include domestic hot water and compressed air distribution costs also.

Costs are over total Mlbs of steam delivered to customer buildings to
calculate a $ per 1000 lbs of steam.

0.826
0.935
0.610
0.930
0.906
1.070
0.949
0.910
0.990
1.075

In addition, capital replacement or renewal have averaged $1.25 over
the same period but have included the "once every 100 year" cost of
replacing our ancient brick tunnels.

Use as you wish but please do not publish.

Bill


-----------------------------------------------
William N. Verge, P.E.
University of Michigan, Plant Operations Associate Director, Utilities
& Plant Engineering 1110 E. Huron, Ann Arbor, MI 48104 734-764-2492,
bve...@bf.umich.edu http://www.plant.bf.umich.edu/utilities/