Washington Administrative Code
Title 173 - Ecology, Department of (See also Titles 197, 317, 372, and 508)
Chapter 173-205 - Whole effluent toxicity testing and limits
Section 173-205-080 - Samples for whole effluent toxicity testing
Current through Register Vol. 24-06, March 15, 2024
(1) All samples taken for whole effluent toxicity testing shall be handled as specified in the permit and in any EPA manuals referenced in the permit.
(2) Except as provided in subsection (3) of this section, the department shall require that samples for whole effluent toxicity testing be taken just before the chlorinator for dischargers who meet all of the following:
(3) If any permittee has begun implementing a plan to install dechlorination, then the sample may, as specified by the department, be chemically dechlorinated by a similar method before whole effluent toxicity testing.
(4) The whole effluent toxicity test shall be run on an unmodified sample of final effluent if the effluent can meet effluent limits based on the water quality criteria for chlorine.
Statutory Authority: Chapter 90.48 RCW and 40 C.F.R. 122.44. 93-20-110 (Order 91-54), § 173-205-080, filed 10/6/93, effective 11/6/93.