Notes
Exhibit 213 (AR 018767–018769), a DRAFT internal issues list dated October 29, 1999, prepared in connection with the 401/CZM certification process for Sea-Tac Airport’s third runway project. Documents resolved issues (wetland mitigation ratio 2:1 out-of-basin and 1:1 in-basin, retaining wall footprint, stormwater compliance with Ecology and King County Manuals, Level 2 detention) and unresolved issues including: 401/402 stormwater matrix adequacy; stormwater facility layout, design, wetland impacts, and mitigation; construction schedule coordination; retrofit requirements; de-icing/dissolved oxygen study; use of Northwest Ponds as mixing zones; role of the Retention/Detention Facility (RDF) in wetlands under King County Manual; NPDES permit compliance; 303(d)/TMDL work on Des Moines Creek and Miller Creek; wetlands/FAA buffer language; instream flows in Des Moines Creek; flow augmentation at Tyee Golf Course; SEPA review of new fuel system; Maury Island fill material arsenic contamination; PCHB declaratory judgment request (February 2000); CZM notice currency; MTCA compliance; aquifer studies; and Auburn mitigation site shoreline permit. References Kevin F., Greg Winguard, Al Furney, AKART standard, King County Manual 10% impervious assumption vs. 100% till-pasture, Highline Water District water rights.