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River cleanup volunteers spend weekends —clearingclearedclearclears plastic bottles and tangled fishing line from the banks. Local wildlife groups say the work has —noticeablynoticenoticeablenoticing improved water clarity, allowing native fish to —thrivethrivedthrivingthrives in stretches once thought too polluted. Organisers hope steady funding will let the project —expandexpandsexpandedexpanding into neighbouring valleys.