Water Quality and Water Temperature

PG&E’S DE SABLA-CENTERVILLE PROJECT, CALIFORNIA — THERMAL IMPACTS ON SPRING-RUN CHINOOK SALMON

Dr. Alice Rich provided testimony on the existing thermal conditions within the Project Area. The testimony included: (1) analyzing the physiological effects of water temperatures on the various life stages of Spring-run Chinook salmon; and, (2) analyzing the effects of water temperature-related mortality (both sublethal and lethal) on the population of Spring-run Chinook salmon in the Butte Creek and West Branch Feather River Systems

AMERICAN RIVER, CALIFORNIA — INSTREAM FLOWS, WATER TEMPERATURES, AND GROWTH OF ANADROMOUS FISHES

AAR assisted Sacramento County in a multi-year dispute over the effects of water diversion from the American River Bay by the East Bay Municipal Utility District for domestic uses. To address the relationship between flows in the American River and thermal requirements of anadromous fishes, AAR designed and conducted laboratory and field physiology studies on Chinook salmon, steelhead trout, and American shad. The results of the studies were presented to the State Water Resources Control Board by Dr. Alice A. Rich.

YUBA RIVER, CALIFORNIA — THERMAL IMPACTS OF REDUCED FLOWS ON CHINOOK SALMON AND STEELHEAD

AAR analyzed the thermal impacts of a water diversion on Chinook salmon and steelhead in the Yuba River for the California Department of Fish and Game (DFG). The results of the analysis were presented to the State Water Resources Control Board Hearings by Dr. Alice A. Rich.

SAN JOAQUIN RIVER SYSTEM , CALIFORNIA — THERMAL IMPACTS ON CHINOOK SALMON AND STEELHEAD

The San Joaquin and its tributary rivers are listed as impaired by high water temperatures, under the State’s Clean Water Act Section 303 (d). Dr. Alice Rich provided expert witness testimony, on behalf of the California Department of Fish and Game, on the impacts of the existing thermal conditions within the San Joaquin River and its tributary rivers.

DELTA WETLANDS PROJECT, CALIFORNIA — THERMAL IMPACTS ON SALMONIDS

In a project in the Sacramento River System in which water would be stored for later discharge, AAR provided an analysis of the thermal effects of the project on Chinook salmon and steelhead. Dr. Alice A. Rich provided testimony, on behalf of the California Department of Fish and Game at the State Water Resources Control Board.

SAN JOAQUIN RIVER WATERSHED, CALIFORNIA — IMPACTS OF HOUSING DEVELOPMENT ON THREATENED AND ENDANGERED FISH SPECIES

As part of the environmental process for the proposed River Islands at Lathrop Project in the Sacramento-San Joaquin Delta, an assessment of potential impacts on Threatened and Endangered fish species is required. To that end, AAR has been contracted to address fishery resources issues, including: (1) Water quality and water temperature monitoring; (2) Designing fish screens; (3) Designing and implementing on-site biological monitoring; (4) Fish Monitoring Plan to assess any future impacts of the project on the fish species; (5) Section 7 Consultation with the agencies; and, (6) Periodic Fishery Resources Technical Reports.

CLIFTON COURT FOREBAY, CALIFORNIA — SEDIMENT MPACTS OF DREDGING ON STRIPED BASS

In a California Department of Water Resources project, AAR assessed the potential impacts of different concentrations of suspended sediment on striped bass, as a result of dredging in Clifton Court Forebay in the San Joaquin River Delta.

CALAVERAS RIVER, CALIFORNIA — WATER QUALITY IMPACTS OF BOAT DOCKS ON SALMONIDS

As part of the environmental process for the Brookside Housing Project, the Applicant was required to monitor the water quality impacts on Threatened and Endangered fish species. AAR’s Tasks included: (1) Section 7 Consultation with all agencies to assess the potential impacts of the project on Chinook salmon, steelhead, delta smelt, and Sacramento splittail; (2) Designing and implementing a three-year water quality and water temperature monitoring effort; and, (3) Designing and implementing on-site biological monitoring during construction

NOYO RIVER, CALIFORNIA — IMPACTS OF FLOW DIVERSION ON WATER QUALITY AND WATER TEMPERATURESD

AAR conducted a seven-year assessment of the impacts of the proposed water supply expansion for the City of Fort Bragg. Of concern were the impacts of flow, water quality, and water temperature changes on coho salmon and steelhead trout.

GARCIA RIVER, CALIFORNIA — SALMONID REHABILITATION

In response to illegally re-routing the Garcia River with the objective of reducing flood-related problems, landowners received a “cease and desist” order from the California Water Quality Control Board. In response to this action, the California Department of Fish and Game and other agencies directed the landowners to assess the potential damage of their actions on the salmonids in the Garcia River. To that end, AAR was hired to address the fishery resources issues. AAR’s Tasks included: (1) Designing and implementing a salmonid monitoring plan; (2) Identifying salmonid rearing habitat; (3) Conducting fishery resources population surveys; (4) Monitoring water temperatures; (5) Conducting salmonid immigration and spawning use surveys; (6) Developing a riparian vegetation plan; and, (7) Analyzing data and writing annual reports.

PROPYLENE GLYCOL SPILL, CALIFORNIA — IMPACTS ON FISH FOOD ORGANISMS

As a result of a potentially toxic spill at Fetzer Vineyards in Hopland, California, the winery was required to assess the potential damage to Seward Creek. Fetzer Vineyards contracted with AAR to undertake the following Tasks: (1) Habitat characterization; (2) Macroinvertebrate sampling; and, (1) Water quality analysis based on macroinvertebrates as an indicator species

BLACKFOOT RIVER WATERSHED, IDAHO — IMPACTS OF PHOSPHATE MINE EXPANSION ON SALMONIDS

AAR analyzed the impacts of the expansion of a phosphate mine in Dry Valley Creek in Southeastern Idaho. The main issue of concern was the potential impacts of the project on the Yellowstone cutthroat trout. Tasks performed by AAR included: (1) Heavy metal impact analysis, including bioaccumulation of heavy metals by fishes; (2) Fish habitat and population surveys; (3) Macroinvertebrate sampling and analysis; (4) Analysis of fish food-growth relationships; and, (5) Analysis of sediment impacts.

PAYETTE NATIONAL FOREST, IDAHO — IMPACTS OF GOLD MINE EXPANSION ON SALMONIDS

In connection with the proposed expansion of a gold mine in the South Fork Salmon River in Idaho, AAR analyzed the impacts on the listed fish species, including spring-run Chinook salmon, steelhead, bull trout, and westslope cutthroat trout. In addition to a Risk Assessment of a potential fuel and chemical spill on salmonids, tasks performed by AAR included the analyses of: (1) Sedimentation and heavy metals; (2) Fish food-growth relationships; and, (3) Macroinvertebrates.

MIDDLE FORK BOISE RIVER WATERSHED, IDAHO — RISK EVALUATION OF GOLD MINE FAILURE ON SALMONIDS

In connection with a catastrophic failure of the Talache Gold Mine tailings impoundment, AAR designed a Fishery Resources Risk Evaluation. Of particular concern were the potential toxic impacts on the federal-listed Threatened bull trout. AAR’s analysis included determining toxicological impacts, fish food-growth relationships, sedimentation impacts, and macroinvertebrate impacts.

HUMBOLDT RIVER WATERSHED, NEVADA — THERMAL IMPACTS OF MINING OPERATIONS ON FISHERY RESOURCES

In connection with a project that involved cooling water from a gold mining operation near Carlin, Nevada, AAR addressed the potential impacts on fishery resources, including: (1) De-watering on the fishery resources and riparian habitat of the Humboldt River; (2) Impacts of heavy metals and other pollutants on the fishes; and, (3) Cumulative impacts of this and other mining activities (past, present and proposed) on the fishery resources.