(a) The purpose of this chapter is to establish the
minimum design criteria for the comprehensive design of domestic wastewater
collection systems, collection system units, wastewater treatment
facilities, and treatment units. The design criteria in this chapter
is intended to promote the design of facilities in accordance with
good public health and water quality engineering practices. The minimum
design criteria may not be sufficient for all situations. A design
must protect the public health and meet water quality standards established
by the commission.
(b) It is also the purpose of this chapter that all
domestic wastewater treatment facilities, treatment units, collection
systems, collection system units, and associated components must be
installed, operated, and maintained:
(1) to ensure the safety of the public;
(2) to ensure the safety of all individuals authorized
to access a wastewater treatment facility, treatment unit, collection
system, or collection system unit;
(3) in accordance with the engineering report and the
associated plans and specifications approved by the executive director;
and
(4) to ensure continuous compliance with all applicable
statutory and regulatory requirements.
(c) This chapter establishes procedures for the review
and approval of project plans and specifications. An approval granted
by a municipality in accordance with §217.8 of this title (relating
to Municipality Reviews) or by the Texas Water Development Board in
accordance with §217.9 of this title (relating to Texas Water
Development Board Reviews) is considered equivalent to approval by
the executive director.
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