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TUKWILA COMPREHENSIVE PLAN <br />throughout the C- fre_q_u e-t:... damaged by installation or <br />,air'?narce of • 7;71.7! ,devc1.opment. <br />$:,.E.-.1F,7..q1..v have <br />narro7..a.,,rip•arian buff.::2s • •,• <br />on <br />overihe:y_earsjed amc- int of • lese areas„ <br />Some reaches of the a.re characterized by large native <br />tree 5 (7oster other,„„areasAttere <br />is ".f..:e r,o tree can.-•• t: and large expanses of invasive vegetation <br />inctekL_I'ves have] -.•.mov^d from te &yjevee. <br />c` S_. 4052o m . - F.npinPPCS requirements. <br />Several env • tc; enhance t: urban <br />forest have bee7 parks <br />wetlands and st.eatr.:.7;, and a the Duwamish et, Trees have <br />been glar.f..ef.l. a.',orkg the river by_ the County as mil • ,n for <br />remol of elsewhere. The City also plar" ' ' :••:?ds of trees <br />in it yearl. requires trees as r—rt irig_fo_r <br />commercial. industrial office and multi- 7,,_ments; 4E.od <br />requires tree replacementirensitive areas,, <br />However, the City does not have a comprehensive written urban <br />forestry plan, street tree, or other program in place to ensure a <br />hcaltyrban forest across all areas of the City. A p•rogram to <br />iirban forest should inciude the following aspects: <br />• rve existing trees and forest; <br />P -rve and improve the "tree-growinglenyironmentli,,e,_ <br />provide adequate growing conditions for trees); .4 <br />• Plant for the long-term (ensure the...Lighttree in the right <br />121ace, sufficient provisions for tree maintenance <br />• Stored Carbon - 71,000 Tons <br />• Sequestered Carbon - 2300 Ton/yr 4 <br />• Carbon Monoxide (CO) 4.3 Ton/yr 4 <br />• Nitrogen Dioxide (NO2) 10 Ton/yr 4 <br />• Ozone (03) - 4.3 Ton/yr <br />• Sulfur Dioxide (S02) - 8.5 Ton/yr 4 <br />• Particulate Matter - 15.7 Ton/yr 4 <br />Yearly Benefit - $493K <br />$1.4M <br />$48K <br />$4K <br />$89K <br />$240K <br />$18K <br />$94K <br />The Natural Environment <br />The v • ue that Tukwila's trees provide to <br />the ct ni triUllitV in terms of air quality <br />irnprc vements was calculated to equal a <br />total • f $443 000.00,as detailed in the <br />vraph c., (side bar) <br />December <br />2013 <br />9 <br />11 <br />