(3) After December 31, 2002, a mill may not discharge dioxin |
into its receiving waters. For purposes of this subparagraph, a |
mill is considered to have discharged dioxin into its receiving |
waters if 2, 3, 7, 8 - tetrachlorodibenzo-p-dioxin or 2, 3, 7, 8 |
- tetrachlorodibenzo-p-furan is detected in any of the mill's |
internal waste streams of its bleach plant and in a confirmatory |
sample at levels exceeding 10 picograms per liter, unless the |
department adopts a lower detection level by rule, which is a |
routine technical rule pursuant to Title 5, chapter 375, |
subchapter II-A 2-A, or a lower detection level by incorporation |
of a method in use by the United States Environmental Protection |
Agency, or if levels of dioxin, as defined in section 420-A, |
subsection 1 detected in fish tissue sampled below the mill's |
wastewater outfall are higher than levels in fish tissue sampled |
at an upstream reference site not affected by the mill's |
discharge or on the basis of a comparable surrogate procedure |
acceptable to the commissioner. The commissioner shall consult |
with the technical advisory group established in section 420-B, |
subsection 1, paragraph B, subparagraph (5) in making this |
determination and in evaluating surrogate procedures. The fish- |
tissue sampling test must be |