➢ TECHNICAL PROJECT MANAGEMENT
MEI provides technical project management services, engaging multiple technical experts to address complex water quality projects. Organizational, inter-personal, and project management skills are devoted to leading sophisticated stakeholder-driven processes to accomplish specific technical tasks and complete complicated watershed and regionally based projects on schedule and within budget.Reference projects include:
- Corona and Twin Peaks Mercury Mines Cleanup Project Managing a novel project using public funds through a non-profit Good Samaritan to address landscape and discharge contamination for public benefits. The project will be completed in early 2015. View the project website.
- North Davis Riparian Greenbelt Urban Greening Project Project manager for a diverse team of non-profits, researchers, Resource Conservation District staff, city staff, and dedicated volunteers to “green” a stormwater channel in north Davis and create educational areas to learn about native plants and sustainable landscape management. Funded by the Strategic Growth Council’s Urban Greening Program via Proposition 84. View the project website.
- Sacramento Regional County Sanitation District Mercury Bioaccumulation Study Managed a pioneering investigation of mercury exposure and bioaccumulation associated with Sacramento Regional Wastewater Treatment Plant discharges. Monitored mercury and associated conditions in water, sediment, microseston, resident and transplanted clams, and fish. Facilitated technical review, angler surveys and local community meetings. View Executive Summary of Final Report and presentation from 2009 CWEA Annual Conference.
- Mercury Offsets Feasibility Studies for the Sacramento Regional County Sanitation District and City of Stockton Managed two separate studies to develop water quality trading standards and projects for the Central Valley’s two largest municipal wastewater treatment facilities. View presentation from WEFTEC 2004.
➢ STAKEHOLDER GROUP FACILITATION & TECHNICAL SUPPORT
MEI provides facilitation and technical support services for stakeholder groups, work groups and other professional organizations.Reference projects include:
- Delta Tributaries Mercury Council Provide technical support (2001-2007) and facilitation (2008-present) services to the 500-person Council addressing mercury issues in the Central Valley; developed and track a strategic plan, host quarterly meetings, and provide periodic mercury news updates. View the DTMC page.
- SRWP Monitoring Committee and Regional Monitoring Program Feasibility Study Led the Monitoring Committee to investigate the feasibility of developing a regional monitoring program for the Sacramento River Watershed. Hosted workshops, created a flier, and wrote the study report. View the SRWP Website.
- Nonpoint Sources Workgroup Facilitate 150-member group of wetland and irrigated agricultural land managers in the Sacramento-San Joaquin Rivers Delta to address methylmercury control study requirements. View NPS Workgroup website. View journal article synthesizing potential management practices
➢ WATERSHED & LAKE MANAGEMENT STRATEGIES
MEI serves stakeholders developing and implementing lake and watershed management programs to:
- Identify and evaluate pollutant control alternatives
- Review, comment on, and negotiate TMDL allocations and implementation plans
- Design and implement technical studies and pollutant control projects
- Characterize manageable lake hydrodynamic and water quality processes
- Yolo Bypass Water Quality Management Plan Led field crews and analyzed the resulting extensive water and sediment quality data set generated by the Yolo Bypass monitoring program, including chemistry and toxicity testing data collected from numerous surface water monitoring sites monthly over a one-year period. View presentation for 2006 CALFED Science Conference.
- Lake Nakuru Hydrologic Analysis Worked with local partners to compile relevant data, and then developed and calibrated a water balance model of Lake Nakuru in the Rift Valley of Kenya. The model is used to quantify minimum inflows needed to maintain an adequate water level in the lake for environmental benefits. View Research Brief.
➢ REGULATORY & POLICY ASSISTANCE
MEI supports municipalities, regulators and businesses to characterize and address environmental obligations in the most cost effective manner. MEI can use in-depth knowledge of the federal Clean Water Act and California Water Code to assist with all aspects of water quality regulations and policy.
➢ WATER QUALITY MODELING
MEI provides water quality modeling services to support planning and management decisions. A comprehensive suite of tools is available to simulate water quality conditions and effects at various spatial and temporal scales. Such models and their uses include:Reference projects include:
- Visual Plumes USEPA model to simulate surface water jets and plumes for steady-state or dynamic mixing zone analyses and other water quality applications. Visit Visual Plumes website.
- CORMIX USEPA-supported mixing zone model and decision support system for environmental impact assessment of regulatory mixing zones resulting from continuous point source discharges. The system emphasizes the role of boundary interaction to predict steady-state mixing behavior and plume geometry. Visit CORMIX website.
- Dynamic Lake Model One- or two-dimensional simulation models of the vertical distribution of temperature and salinity in small to medium lakes and reservoirs. Natural and artificial mixing conditions (including ice cover and groundwater exchange) can be simulated to test effects on sedimentation, algae, dissolved oxygen, and other conditions. View Environmental Dynamics Lab at UC Davis’ Dept. of Civil and Envir. Engrg.
- WEAP Water Evaluation And Planning systems model that calculates water demand, supply, runoff, infiltration, crop requirements, flows, and storage, and pollution generation, treatment, discharge and in-stream water quality under varying hydrologic and policy scenarios. Used to evaluate a wide range of water development and management options, while accounting for multiple and competing uses of water systems. Visit WEAP website.
- WARMF Watershed Analysis Risk Management Framework hydrologic and water quality simulation model. The system provides a road map to calculate TMDLs for most conventional pollutants and mercury. Visit WARMF website.
- Customized tools such as modified “rational method” techniques, water balance models, multivariate statistical regression, and Monte Carlo simulations.
➢ WATER & SEDIMENT QUALITY MONITORING
MEI develops and manages large- or small-scale monitoring and assessment projects involving analyses of water and sediment chemistry, aquatic and sediment toxicity testing, and various other physical and biological parameters. Specific tasks may include:
- Monitoring influent/effluent to evaluate treatment performance
- Conducting dilution studies to evaluate dilution of a discharge into its receiving water
- Conducting tracer studies
- Specifying, deploying, and tracking continuous water quality sensors
- Training and leading staff in clean sampling techniques. View USEPA Method 1669.
- New Development Stormwater Monitoring, City of Elk Grove Deployed continuous sensors, solicited and managed volunteers, tracked and triggered storm runoff monitoring events, and tested sediment and water column toxicity. Reported results of baseline monitoring and developed a long-term monitoring strategy. View Elk Grove study final report.
- Structural Best Management Practices evaluation Monitored runoff from an urbanized area to evaluate pollutant removal effectiveness in the City of Sacramento. View City of Sacramento swale special study final report.
- Wastewater Tracer Studies Led dye tracer studies to confirm analytical mixing solutions, and applied numerical model CORMIX to delineate effluent mixing zones in the Los Angeles, Napa and Russian rivers.
- Continuous Sensor Deployments Managed multiple projects constructing and deploying custom-made continuous sensors in effluent and in tidally-influenced rivers. Interpreted results to quantify dilution, transport, reaction kinetics, and diurnal patterns.