(1) In addition to the requirements of Parts 1 through 5 of chapter
246-290 WAC, Subpart B of Part 6 of chapter
246-290 WAC applies to purveyors of systems using surface or GWI sources and providing filtration, including:
(a) Systems with water treatment facilities that produced water served to the public before January 1, 1991;
(b) Unfiltered systems installing filtration, once the new water treatment facilities are online; and
(c) New systems using surface or GWI sources. For the purpose of the Part 6 chapter
246-290 WAC requirements, new systems are defined as systems first serving water to the public after December 31, 1990.
(2) The purveyor of a new system using a surface or GWI source shall comply with the requirements of Part 6 subparts A and B chapter
246-290 WAC and be subject to the treatment technique violations specified in WAC
246-290-632 beginning when the system first serves water to the public and thereafter.
[Statutory Authority: RCW 43.02.050 [43.20.050]. 99-07-021, § 246-290-650, filed 3/9/99, effective 4/9/99. Statutory Authority: RCW 43.20.050. 93-08-011 (Order 352B), § 246-290-650, filed 3/25/93, effective 4/25/93.]