suitable measuring containers. Accuracy shall be plus or minus 2 percent
of the actual rate over a five-to-one range.
3.10.3.9
Electrical Control System Tests
The plant manufacturer's representative shall inspect the installation of
the electrical control system with the Contracting Officer and check
circuits and connections to all motors and electrical controls. The
manufacturer's representative shall, upon satisfactory operation of all
circuits and controls transmit to the Contracting Officer, three copies of
letter certifying that the wiring is complete in accordance with the intent
of the specifications for both manual and/or automatic operation and proper
functioning of the sewage treatment plant.
3.10.4
Printed operating instructions specified hereinbefore will be reviewed by
the Contracting Officer with the plant manufacturer's representative at the
site. Each major piece of equipment shall have a name plate attached to it
indicating characteristics of the equipment such as: name, capacity, watts
HP, rpm, voltage, model or serial number. Also, each operating piece of
equipment shall have a metal or plastic tag, non-corrosive type, with a
number, name, or letter corresponding to one given in a flow diagram
(isometric drawing) of the plant to be furnished by the manufacturer.
3.10.5
Plant Start-Up
Before allowing any liquid to discharge into the tanks, all tanks,
chambers, channels, launders, piping and pieces of equipment shall be clean
and free of any debris such as pieces of wood, concrete or leaves.
Manufacturer's representative shall be present at plant start-up. The
Contracting Officer will also be present so that he will become familiar
with each piece of equipment and its proper operation and function. The
manufacturer's manual on operation and maintenance shall be followed, step
by step, so that as each piece of equipment is put into operation, the
manufacturer's representative shall explain in detail its function. Once
the plant is filled with water or sewage, the flow diagram furnished shall
be followed and checked out with the on-site inspection.
The adjusting of equipment shall be made as required. The plant shall be
examined to determine if it is structurally sound. All defects noted shall
be reported and corrected. If no defects are detected, this shall be
reported.
3.11
WORK INCLUDED UNDER OTHER SECTIONS
**************************************************************************
NOTE: Delete reference to piling when not required
for plant foundation. On the project drawings, show:
1. Type of plant: (Extended aeration, Step
Aeration, or Complete Mixing).
2.
Design flow.
3.
5-day BOD loading.
4.
Suspended solids loading.
SECTION 11375N
Page 122
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