Public and regulatory concerns over natural and anthropogenic contamination of water supplies have increased the need to understand how water quality influences the health and structure of aquatic ecosystems. To help you address water quality issues affecting beneficial uses of our water, we provide the following services:
Stillwater Sciences provides expertise in the development of comprehensive study design and implementation for water quality assessment and monitoring in rivers, lakes, reservoirs, wetlands, and estuaries. Our staff is well-versed in regional and federal regulatory requirements as well as basic and applied research in biogeochemistry, hydrologic assessments, modeling, instream flow effects on sediment and water temperature for sensitive aquatic species, and effects of water impoundments on the accumulation and re-release of sediments, nutrients, and trace metals.
From routine water quality surveys to reservoir management, or mercury bioaccumulation studies, our staff focuses on applied water quality issues.
Placer gold mining has left a legacy of mercury contamination extending from the Sierra Nevada to the Sacramento-San Joaquin Delta. Because of the risk of mercury remobilization from a heterogeneous distribution of low-levels of mercury in gold dredger tailings along the lower Merced River, Stillwater developed an innovative three-phase sampling plan for a restoration site at the Merced River Ranch that combines analysis of sediment, water, and biological tissue samples within the project area as well as comparisons to reference sites with known contamination and mining history.