Welcome
Water Vulnerabilty International (WVI) is a science and consulting firm that specializes in groundwater vulnerability, surface-water sensitivity, and adaptation assessements. We are dedicated to providing sound scientific and creative solutions for water-resources managers, decisionmakers, and stakeholders. We are based in the San Francisco Bay Area and have project experience throughout the United States and around the world. more about usOur Services
WVI provides solutions to vulnerable water resources, including a wide range of science and consulting services in the water resource sector. We take pride in our leadership and international reputation in groundwater vulnerability assessment and surface-water sensitivity studies to contamination and climate change and variability. full services listNews
See what we've been up to. full news listGroundwater Vulnerability Modeling
All groundwater is vulnerable to contamination from human and natural sources and the effects of climate variability and change. The increasing global demand for safe drinking water and requirements to maintain ecosystems are driving decision makers to ask complex scientific and social questions about how best to assess and manage water resources. Understanding groundwater vulnerability is [...]
Water-Quality Monitoring & Analysis
Water-quality monitoring and assessment is a critical component of most groundwater and surface-water resource management and development programs at the local, state, and federal levels. WVI works with private, non-profit, government, and non-governmental organizations tasked with managing and protecting groundwater and surface water, source-water assessment, and conjunctive-use agreements. Our philosophy and scientific approach to water-quality monitoring and assessment [...]
Climate Change & Variability
Climate influences all life on Earth, human health and well-being, water and energy resources, agriculture, forests and natural landscapes, air quality and sea levels. Understanding climate change and variability is vital for society and ecosystems, particularly with regard to complex changes affecting the availability and sustainability of surface-water and groundwater resources. The potential effects of [...]
Low Impact Development (LID)
Urban areas worldwide are adopting low impact development (LID) as part of an alternative to traditional stormwater management in an effort to reduce impervious cover, promote infiltration, and capture and treat stormwater runoff using best management practices. Among the many benefits of LID, the increased infiltration beneath LID likely results in increased recharge to local groundwater resources. Portfolio of Recharge and [...]
Geographic Information System (GIS)
WVI specializes in groundwater vulnerability and surface-water sensitivity assessments, including development of predictive models and maps within a geographic information system (GIS). GIS-based vulnerability maps illustrate relative vulnerability of a groundwater or surface-water resource to contamination or climate change, and can be easily integrated with other layers to best manage the resource. Research has shown that [...]
Litigation Support & Technical Review
WVI Principal Scientists Drs. Jason Gurdak and Leora Nanus draw on over 30 years of combined research as Hydrologists with the U.S. Geological Survey and university teaching experience as Geoscience Professors to provide credible, expert testimony and litigation support. Drs. Jason Gurdak and Leora Nanus are experienced, well-spoken water professionals that communicate clearly and succinctly to convey complex and technical concepts in [...]