Eastern Shore Post By Carol Vaughn — A study showed no significant difference in water quality between freshwater waterways where there are poultry operations and waterways with no poultry operations in Accomack County. Richard Snyder of the Virginia Institute of Marine Science presented the findings to the Accomack County Board of Supervisors Wednesday. The study was initiated several years ago when concerns were raised about potential effects on water quality of an expansion of poultry growing operations in the county. The mass balance study looked at dissolved and total nutrients, including ammonia, nitrate, and phosphate in waterways, and at poultry litter.