(a) The safety aspects of a wastewater treatment facility
design must be based on Design of Municipal
Treatment Plants, WEF Manual of Practice No. 8, 5th edition,
2009, published by the Water Environment Federation. Other safety
design guidelines may be used only if submitted in the design submittal
and approved in writing by the executive director.
(b) Occupational safety and health hazards, and risks
to workers and the public, must be addressed in the design of collection
system and wastewater treatment facility equipment and processes.
(c) The design of a wastewater treatment facility
must incorporate processes that use the least hazardous and least
toxic chemicals and the smallest amounts of those chemicals that will
effectively treat and disinfect the influent so that the effluent
and sludge meet the requirements in the associated wastewater permit,
and do not degrade the water quality in a receiving stream or cause
accumulation of hazardous or toxic chemicals in a land application
area.
(d) Where applicable, a design must follow the guidelines
pursuant to 29 Code of Federal Regulations, Part 1910.
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