Eno River Brewing on the Eno River failed to meet recreational water-quality standards for a second week running. Five Falls Lake sites, Milburnie and Buffaloe Road boating access sites in Raleigh and the Clayton River Walk were not tested this week. Swim Guide is an international water-quality program conducted locally by Sound Rivers, an environmental nonprofit whose mission to keep North Carolina’s waterways fishable, swimmable and drinkable. This summer marks the ninth year of Swim Guide in the Neuse and Tar-Pamlico watersheds. Each week, a team of Sound Rivers’ volunteers gathers water samples at more than 50 popular recreation sites from the Piedmont to the Pamlico Sound.