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EXH AR026484: Handwritten Meeting Notes Water Quality Permit Standards WER Guidance POS/WERS 5/10/99

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Sea-Tac Airport
Third Runway
PCHB
Box 10

These handwritten meeting notes dated 5/10/99 document a discussion among water quality staff including Kevin Fitzpatrick and Gary Bailey regarding permit standards and guidance. Topics covered include updating water quality standards to 'use-based' classifications, finalizing antidegradation rules, and establishing sampling protocols such as requiring at least 5 days of sampling during critical low-flow conditions. The notes also address mixing zone limits, AKART conditions for permit outfalls, and revisions to the permit writer's manual expected by June or July.

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Notes

Handwritten meeting notes dated 5/10/99 from a POS/WERS session attended by Kevin Fitzpatrick, Gary Bailey, Elizabeth, Paul, and others described as water quality permit gurus and standards staff. Notes cover draft comments on filling gaps in GSEPA 1994 guidance, discussion of changing standards to use-based water quality standards (WQS) with Manchester standards, finalizing antidegradation going out that fall, changing classification based on beneficial uses, and a revision to permit writers manual due by June/July. References Chehalis TMDL work group, environmental assessment group including Greg Pelletier and Norm Glen on mixing zones (MZ), WER reviews, AKART as a condition for all outfalls, clean sampling and analytical techniques, QAPP, harmonizing 401 and 402 permits, sampling events limited to 5 days covering critical conditions (2 summer, 1 winter low flow), and MZ not to exceed 25% of stream width. Administrative Record numbers AR 026484 and AR 026485.

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