UFC 3-240-13FN
25 May 2005
and cooling towers). Water treatment service companies commonly supply these control
charts.
1-1.9.2
Operations Logs. Operations logs can be maintained to establish trends
for parameters and items identified in the program control charts. These logs are best
maintained as computer-generated spreadsheets and graphs. Hardcopy records are
also acceptable.
1-1.9.2.1
Large Boilers. Maintain water treatment logs on-site in all plants
operating above 103 kilopascal [kpa] (15 pounds per square inch gauge [psig]) steam or
207 kpa (30 psig) hot water, with an output capacity above 1 megawatt (3.5 million
British thermal units per hour [MMBTUH]), or 100 boiler horsepower. The logs should
provide a record of the treatment and test results of boiler water, makeup water, and
condensate water. One log can be maintained for each boiler and one for the plant
makeup water data.
1-1.9.2.2
Cooling Towers. Maintain operating logs on-site for all operating cooling
towers, and those logs should contain results (including dates) of all chemical tests
performed, calculated cycles of concentration (COC), and the amount of chemicals
added.
1-1.9.2.3
Other Systems. Maintain operating logs on-site for low-pressure steam
boilers, high-temperature hot water boilers, medium-temperature hot water boilers, low-
temperature water boilers, and closed chilled water systems. These logs should contain
results (including dates) of all chemical tests, amount of chemicals added, and the
volume of blowdown water, where applicable.
1-1.9.3
Historical Records. Information pertaining to the maintenance and
history of industrial water treatment, other than that which can be entered on the log
form or data accumulated for log form entries, can be maintained for each system in a
computerized maintenance management system, a separate computer application, or
as a hardcopy historical record book. Hardcopy records should be letter size (216
millimeters x 279 millimeters, 8.5 inches by 11 inches) or larger, and can be entered into
a bound book rather than a loose-leaf binder. Records should contain information
(including dates) about system start-up and shut-down, occurrences of corrosion and
scale, major maintenance activities performed on the system, replacement of piping and
equipment, accidents, outages, changes in method of operation and treatment used,
and other pertinent data, including equipment inspection results logs.
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