Resident Office; and "PO" for Project Office. Codes
following the "G" typically are not used for Navy
projects.
Submittal items not designated with a "G" are
considered as being for information only for Army
projects and for Contractor Quality Control approval
for Navy projects.
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Government approval is required for submittals with a "G" designation;
submittals not having a "G" designation are [for Contractor Quality Control
approval.][for information only. When used, a designation following the
"G" designation identifies the office that will review the submittal for
the Government.] The following shall be submitted in accordance with
Section 01330 SUBMITTAL PROCEDURES:
SD-02 Shop Drawings
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NOTE: Delete reference to comminutor when not
required for plant. For plants of 1.09 L/s 25,000
GPD capacity and below, the comminutor and bar
screen unit may be omitted, and in lieu thereof, a
screening basket provided in the aeration tank. For
installations in which all sewage has passed through
a comminutor and bar screen upstream of the plant, a
comminutor and bar screen unit need not be provided
as a part of the plant equipment.
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NOTE: Delete reference to mechanical aerator when
step aeration type or complete mixing type is
specified, or when not allowed for extended aeration
type. Mechanical aerator may not be suitable for
use in areas having prolonged periods of
sub-freezing temperatures when spray may form
accumulation of ice. Consideration should be given
to temperature and detention time of the liquid and
freeboard in the tank in determining temperatures
that may be tolerated. Mechanical aerator is not
suitable for extended aeration type where eventual
conversion to step aeration is contemplated.
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NOTE: Delete reference either to chlorinator or to
hypochlorinator.
Hypochlorinator should be
specified for all plants 4.38 L/s 100,000 GPD
capacity and below. Chlorinator should be specified
for all plants 6.57 L/s 150,000 GPD capacity and
above. Between 4.38 L/s and 6.57 L/s 100,000 GPD
and 150,000 GPD capacity either is suitable.
Selection should be made on basis of existing
station or base practices, local availability, and
comparative costs.
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SECTION 11375N
Page 13
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