EXH0618024347

PCHBPollution Control Hearings Board of the State of Washington

ATTN: JonathanFmedmau, Project Manager [m;,'r_ _._'" _, RE: Public Notice 96-4-02325, Port of Seattle, December 19, 1997 _._ ,_'_"_ ' Dear Colonel Rigsby: _ We have completed our review of the above referenced public not_ which proposes to fili 7.38 acres of wetlands for tl_ consm_cdon of a rhitd parallel runway at Sea_de- T_,oma_I._tnational Airport, including filling 5.46 aces of wetlands for the proposed third runway and 1.92 acres of wetlands fill at on-sit_ borrow sites. Also proposed is.fiUi_,_ 2.34 acre of wetlands, to construct two n=w tZlmway Safety Areas. An addit_nai proposed fill. of 1.70 acres of wctiands to construct the South Aviation Support Area (SASA) facihties for airportsupportandmaint_mn_ facilities. Totalwetlandfillperthe.publicnoticeis11.42 acres as described in the table on sheet. 6 of 29. Also on sheet6 of 29 the foot note describes a total of approximately 12.23 acres of wetlands would be filled as a result of this project. Clarification is needed to accoum for the direct wetland impacts associated with this project.' The proposed work would also require t!!...!!i-_and rec_ ap_oxlm_t_ly 980 feet of Miller Creek (O.P._of anacre), about 2.280 feet (0.15 of an acre) of drainage "__'l_l_ler Creekbasin,andabout2,200feet(0.5ofan acre)ofDes Moinss Creek. As part of EPA's review, we read the proposed "mitigation plan" provided by the applidantand.datedDecember18, 1996, The directacreage impactsto waters oftheU,S.is different in this document than that included in the l_blic Notice. After reviewing the above.referenced public notice, the Environmental Protection Agency (EPA) has the followingconcernsandcomments: - The pubfic notice and "mitigation plan" fail._toidentifyappropriate compensatorymitigation forthewetlandimpacts. Ess_ly…
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