MATERIALS AND EQUIPMENT

steel or concrete (except that all-steel would be

needed for relocatable plants).

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NOTE: The applicable requirements for cast-in-place

concrete as specified in Section 03300N

CAST-IN-PLACE CONCRETE and Section 03410N PLANT

PRECAST STRUCTURAL CONCRETE should be incorporated

into the appropriate section of the project

specification.

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NOTE: Insert appropriate Section numberS and titleS

in blankS below using format per UFC 1-300-02.

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Concrete work includes [concrete plant walls, partitions, and bottom;]

[support slab for all-steel plant or concrete bottom for steel wall plant;]

and concrete pad for equipment support. Cast-in-place concrete shall be in

accordance with [_____] and [_____]. Precast concrete shall be in

accordance with [_____] and [_____]. Results of Government-made soil

bearing tests will be furnished to the Contractor.

2.5

LUBRICATION

All moving parts of equipment requiring lubrication shall have means

provided for such lubrication and shall be lubricated prior to delivery.

2.6

MATERIALS AND EQUIPMENT

2.6.1

General

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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 to mechanical sludge

collection equipment for extended aeration type below

0.66 L/s 15,000 GPD capacity. For plants below

0.66 L/s 15,000 GPD capacity, hopper bottom only

should be specified for settling tanks. For plants

above 4.38 L/s 100,000 GPD capacity, mechanical

sludge collectors only should be used in settling

tanks. For plants between 0.66 L/s and 4.38 L/s

15,000 and 100,000 GPD capacity, either hopper

SECTION 11375N

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