Exhibit 7: STIA Construction Site Stormwater Monitoring — October 16 and 20, 2000

Notes

STIA Construction Site Stormwater Monitoring reports dated 10/16/00 and 10/20/00, samplers JL/RS and JB/RS. Documents turbidity and pH measurements at multiple Sea-Tac Airport construction sites including Logistics Site Development (Tyee Pond, Des Moines Creek outfall), MWS Lagoon 3 Construction, Airfield Improvement (SDS3-594, SDS-6, SDS-7), Dobbs Flight Kitchen Remodel (SDE4-611, SDE4-607, SDE4-615, SDE4-601, SDE4-602), Booster Pump Station (SDE4-911, SDE4-918), Air Traffic Control Tower (SDE4-948, SDE4-958), Feeder 104/204 Replacement (International Blvd curb), South Terminal Expansion Project, North Ductbank. Rainfall depths 0.51 inches and 0.72 inches recorded. Notes include NPDES stormwater discharge monitoring, turbidity exceedances (d/s – u/s > 5 NTU), notifications to KL and DJ, holding pond freeboard, and sampler placement issues. AR 026465–026467.

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