Efforts to contain odors at the City of Hood River’s wastewater treatment plant are continuing.  City Manager Steve Wheeler says a specialist from plant manager CH2M will visit on Friday to offer suggestions.  Wheeler notes eliminating the odors from the plant on the waterfront has been a long-time pursuit, intensified by increased development in the waterfront area.  At the start of this month dumping at the plant was limited to mornings, which has resulted in odor reduction along the Waterfront in the afternoon and evenings.  A cover will be installed over a the plant’s splitter box and waste activated sludge storage tank to capture odorous air and run in through a biofilter, with construction to start in mid-September and expected to be finished in January.  There are plans in the future to install a similar cover on the east aeration basin.