Bishii Ogosto 15, 2013, qaadashadii ugu horreysay ee biyo-xireen 1930-meeyadii ayaa laga saaray Sandy River Delta, taasoo ka dhigan toban sano oo qorshayn ah oo lagu soo celinayo qulqulkii asalka ahaa ee Columbia. Deeqaha EMSWCD shaqaalaha ayaa ka soo qayb galay xaflada ay maalgaliyeen Maamulka Korantada Bonneville iyo Ciidanka Qalabka Injineerada si ay marqaati uga noqdaan talaabadii ugu horeysay ee qaar badan oo ka mid ah mashruucan soo celinta ee adag. Sandy River Basin Watershed Council, oo ah shuraako kale oo ku lug leh soo celinta Delta, ayaa bilaabi doona soo celinta sannadaha badan ee Toucan Wing ee Delta iyada oo ay maalgelinayso EMSWCD's Partners in the Conservation barnaamijka deeqda. Wax badan oo ku saabsan ka akhri gudaha Muuqaalka Gresham.