Richland, Wash. – EAS’s extensive knowledge of Pacific Northwest aquatic ecosystems earned the company a new contract in May 2016. TetraTech, under prime contract with PacifiCorp, hired EAS to provide professional technical services supporting fish-tissue sampling, water quality monitoring, and other aquatic-related services throughout the region.

EAS tasks under aquatic services, may include 1) conducting rare, threatened, and endangered species surveys, fisheries inventories and population surveys; 2) benthic invertebrate sampling; and 3) external and histopathological and physiological analyses of fish health.

EAS researchers will also perform water quality measurement and monitoring, as required, reservoirs, lakes, impoundments, rivers, streams, wetlands, powerhouse forebays and tailraces, and natural and man-made waterways. Water quality samples (physical parameters, chemical analysis, phytoplankton analysis) and measurements will be conducted at various sites to assess the water quality conditions in a particular area and examine spatial and/or temporal trends and relationships among water quality parameters.