Stillwater Sciences uses innovative scientific analyses to assess the effects of human activities on river basins and provide effective water quality management solutions. Water quality management solutions developed by Stillwater are an important part of the following processes and regulatory requirements:

• Total Maximum Daily Load (TMDL) requirements under the Clean Water Act
• Habitat Conservation Plans (HCPs) under Section 10 of the Endangered Species Act (ESA)
• Biological Assessments under Section 7 of the ESA
• Hydroelectric project relicensing under the Federal Power Act for the Federal Energy Regulatory Commission (FERC)
• Environmental Assessments and Environmental Impact Statements under the National Environmental Policy Act (NEPA)
• Environmental Impact Reports under the California Environmental Quality Act (CEQA)

Stillwater specializes in developing creative technical solutions to solve difficult ecosystem management problems, especially in cases where there are competing interests and conflicts among stakeholders. Stillwater Sciences’ reputation for defensible scientific work has enhanced our strong working relationships with regulatory agency staff.

Stillwater’s Water Quality Management Services

Using our scientific approach and technological tools we provide:

• stream temperature assessments and modeling
• stream channel classification
• sediment source analysis
• in-channel numeric indicators and targets based on beneficial uses such as anadromous salmonid habitat quality
• constructed wetlands for habitat and water quality improvement
• ecological assessment of contaminants

Stillwater’s experience with regulatory compliance and documentation provides our clients with a complete package of services, including the identification of key issues, study design, scientific analysis, reporting, and federal and state agency negotiations.