technique. Disinfection shall be repeated until tests indicate the absence
of coliform organisms (zero-mean coliform density per 100 milliliters) in
the samples for at least 2 full days. The system will not be accepted
until satisfactory bacteriological results have been obtained.
3.22.10
Flushing of Potable Water System
As an option to the system flushing specified above, the potable water
system shall be flushed and conditioned until the residual level of lead is
less than that specified by the base industrial hygienist. The water
supply to the building shall be tested separately to ensure that any lead
contamination found during potable water system testing is due to work
being performed inside the building.
3.23
FRAMED INSTRUCTIONS
Framed instructions under glass or in laminated plastic, including wiring
and control diagrams showing the complete layout of the entire system,
shall be posted where directed. Condensed operating instructions
explaining preventive maintenance procedures, methods of checking the
system for normal safe operation, and procedures for safely starting and
stopping the system shall be prepared in typed form, framed as specified
above for the wiring and control diagrams and posted beside the diagrams.
The framed instructions shall be posted before acceptance testing of the
systems.
SECTION 15405A
Page 109
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