SAMPLE AUDIT REPORT FORMAT
c
Water Audit Report:
November, 1988
- . Major aoston Hospital
Boston, Massachusetts
Prepared By:
Your Name
X Y z Hospital
Boston, Hassachusetts 02111
I . '
Water Audit Report
Major Boston Hospital
Boston, Massachusetts
SUMMARY e
This building consumed 33 million gallons of water in FYI88 at a cost of $110,000. Sixty-four percent of that water is used forcooling compressors. Another four percent cools steam condensatebefore disposal. Processes (x-ray developers, kitchen, CSR andlabs) use fifteen percent. Thirteen percent is used for sanitaryand general cleaning.
The following table summarizes the measures we found to be costeffective. They represent water savings of 24 million gallons peryearr nearly three qiarters of present consumptlon.Xe recommend that the Hospital implement all of these measures.
c- ~Water Conservation Measure cost Savings Payback
Control Compressor Coolinq Flow $ 4,000 $ 2 8 , 7 0 0 .2 y r s
Eliminate Condensate Cooling 1,000 14,900 .1 yrs
Use chilled Water for Compressors 18 ,OOO 2 1 , 5 0 0 .8 yrs
Use Chilled Water for One Koldwave 10 , 500 11,000 .9 y r s
Control X-0-Mat Flow 14,000 4,400 3 . 2 yrs
$47,500 $80 , 500 .6 y r s
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WATER UTILIZATI3N
Water Cost
dater is purchased from the Boston Water and Sewer Commission
through a meter common to several buildings on the campus.
ApplicabLe parts of the rate schedule, effective April I, 1 9 8 8 , are:
$/MCF $/MCF $/MCF $/Mgal
MCF/Dav Water Sewer Total Total
0-19 1 2 . 2 3 1 1 . 9 3 24.16 3.23
i J - 3 9 1 2 . 2 5 1 2 . 0 8 2 4 . 3 3 3 . 2 5
Major Boston Hospital, 11/88
.. _.
Use data indicates that from September, 1987 through August, 1988,
31.4 million gallons of water were purchased. Appendix A summarizes
the 21 months of readings. That data is erratic and probably
incorrect for the first year; it appears more consistent from
September, 1987 on, but remains suspect since there is no basis for
the winter peak water use indicated.
The total cost for water for the iast year, according to available
data, was $104,600 using an average cost of $2S/MCF. Based on the
current effective BWbSC rate, it would have been $101,800.
Pro-~ected cost for FYI88 is $106,300.
- Sanitary
All toilets are fitted with Sloan standard flushometers. There are
175 toilets, 145 lavatories, 64 shower/tubs, 12 bedpan sterilizers
and 17 janitor's sinks.
The daily average population is roughly 600 people weekdays and 400
c- - people on weekends, or 200,000 people-days per year. Using an
average of 21 gallons per person-day (3 flushes at 5 gal/flush, .3
shower/baths at 15 gal/use, 1 washup at 1 gal/use), sanitary use
amounts to 12,600 gallons/weekday or 4.2 million gal/yr.
Kitchen
Hours of operation are 6:OO a.m. to 8:OO p.m. daily. Approximately
4,000 meals per weekday and 2,500 meals per weekend day are prepared
and served in these facilities. Water using equipment includes:
-No. Device Use Characteristics Gal/Weekday
3 Steam Tables 2 fills/day x 20 gal/fill 100
2 Dishwasher Champion 6 4 Ka ; Better Sui It 2,200
1 Pot Scrubber cont for 50%; 3/4"svcI 3 gpm 1 ,000
1 Scullery cont for 50%; 1" svc, 5 gpm 2,000
12 Steam Kettles 40 gal/fill; 25 fills/day 1,000
3/4" service, 3 gpm max
6,300
This inventory implies about 1-1/2 gallcns of water are used per
neal. Annual use is 2.0 million gallons
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