scope:

General. This standard shall establish minimum requirements for protection against fire and explosion hazards in wastewater treatment plants and associated collection systems, including the hazard classification of specific areas and processes.

This standard shall apply to the following:

(1) Collection sewers

(2) Trunk sewers

(3) Intercepting sewers

(4) Combined sewers

(5) Storm sewers

(6) Pumping stations

(7) Wastewater treatment plants

(8) Sludge-handling facilities

(9) Chemical-handling facilities

(10) Treatment facilities

(11) Ancillary structures (see 3.3.54.1)

This standard shall not apply to the following:

(1) Collection, treatment, or disposal of industrial wastes or manufactured by-products that are treated on-site and not discharged to a publicly or privately operated municipal facility

(2) On-site treatment systems (see 3.3.55.1)

(3) Pressure sewer systems (see 3.3.48.7)

(4) Building drain systems and appurtenances (see 3.3.5)

(5) Industrial sewer systems and appurtenances (see 3.3.48.5)

(6) Personnel safety from toxic and hazardous materials or products of combustion

(7) Separate nonprocess-related structures (see 3.3.54.2)

Purpose.

The purpose of this standard shall be to provide a degree of fire and explosion protection for life, property, continuity of mission, and protection of the environment. 

The purpose of this standard shall be to reduce or eliminate the effects of fire or explosion by maintaining structural integrity, controlling flame spread and smoke generation, preventing the release of toxic products of combustion, and maintaining serviceability and operation of the facility.