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EXH AR024740: Internal Email — Section 4.3 Water Quality Facilities, Stormwater Mgmt RP

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Sea-Tac Airport
Third Runway
PCHB
Box 10

A 1998 internal email exchange between Ken Ludwa and Kerry Ritland discusses edits to Section 4.3 of a stormwater management report related to Sea-Tac Airport. The section covers water quality facilities, explaining that new stormwater detention facilities would follow state Ecology guidelines using biofiltration and permanent water quality storage, while also complying with the Port's NPDES permit and Stormwater Pollution Prevention Plan (SWPPP). Ken Ludwa agreed to edit the section to reference Appendix F – Water Quality BMP Analysis once that appendix was further developed.

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Internal email dated July 6, 1998 from Ken Ludwa to Kerry Ritland regarding Section 4.3 of the stormwater management report for the Sea-Tac Airport Master Plan. Ludwa agrees to edit the section after Appendix F (Water Quality BMP Analysis) is finalized. The attached draft of Section 4.3 covers water quality facilities, biofiltration, permanent water quality storage, suspended sediment and contaminant removal, NPDES permit, SWPPP for Airport Operations, Industrial Wastewater Treatment Plant (IWS), Stormwater Drainage System (SDS), and source control best management practices (BMPs). Administrative Record number AR024740.

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