E&S developed a report for the National Park Service to evaluate differences in estimates of atmospheric nitrogen (N) deposition…

ENVIRONMENTAL ASSESSMENT Our Environmental Assessment Projects focus on a wide range of topics, including various aspects of air, water, and soil pollution throughout the United States. E&S staff developed a comprehensive assessment of the expected risk to various biological endpoints within all National Forests and wilderness areas of the Intermountain Region. Risk was characterized with …

ENVIRONMENTAL ASSESSMENT Our Environmental Assessment Projects focus on a wide range of topics, including various aspects of air, water, and soil pollution throughout the United States. E&S staff conducted an analysis of net greenhouse gas emissions associated with forest, agricultural, and wetland systems of New York State. Results will be used by NYSERDA and other …

E&S teamed with many of the leading scientists, plus an economist, in the field of air pollution and its effects in North America to write a science/policy journal article on air pollution mitigation success stories in the United States.

This project applies empirical and modeled critical loads (CLs) to fine-scale maps of selected national parks in the intermountain West that are considered to be most at risk from increases in atmospheric nitrogen (N) deposition from oil and gas-related activities.

The Appalachian National Scenic Trail (AT) is one of the longest footpaths in the world, spanning ~2,180 miles (3,500 km) from northern Georgia to central Maine.

Hydropower field studies are crucial in describing existing conditions of a river or lake and involve a variety of data collection activities ranging from hourly water samples to seasonal population surveys.

E&S Environmental conducts watershed assessments and analyses following both state and federal guidelines. E&S has produced numerous watershed assessments for watershed councils following Oregon Watershed Enhancement Board (OWEB) methods, as well as watershed analyses that conform to federal watershed analysis guidelines.

Tillamook Bay and its watershed, which are located on the north coast of Oregon, have a long history of water quality problems. Despite progress in restoring water quality over the past two decades, both fresh and saline waters often fail to meet water quality standards for bacteria, frequently causing the cessation of oyster harvesting in the bay.

Minimally disturbed lakes were determined from available GIS data (e.g. land use, roads, aerial photography) for comparative use in EPA’s national survey of lake health. A series of maps was generated for each candidate reference lake and analyzed for evidence of disturbance.