Water Consulting

Onterris helps organizations and communities define water priorities, evaluate design options and build programs that support operational efficiency and environmental stewardship. We support climate-informed water risk and resilience strategies for secure long-term supply and reuse planning.

We integrate engineering with surface water, groundwater, geomorphology, climate science and ecology to solve complex water resource challenges. Work spans stormwater management, stream restoration, and flood mitigation with designs built to perform under changing conditions. Solutions include erosion control structures, natural channel design, and river engineering that balance infrastructure needs with protection of natural systems. When projects intersect with water bodies, regulatory insight and agency collaboration help keep approvals moving and designs workable in the field.

We translate complex water quality challenges into strategies that meet regulatory standards and protect ecosystems and human use. Water quality assessments, advanced surface water and groundwater modeling, pollution analysis and risk-scoring frameworks help anticipate contaminant risks and prioritize action. Effective effluent and discharge management supports sustainable water supply and protects long-term water resource integrity.

We help organizations address stormwater challenges from source to downstream impact, including managing flood exposure risk, drainage constraints and evolving design requirement. Services include stormwater assessment and design, permitting and compliance and low impact development. We also support catchment planning, flood hazard mapping and mitigation, and climate adaptation planning.

From planning through delivery, we help teams manage water-related considerations with clearer decisions, fewer surprises, and stronger regulatory alignment. Services include water infrastructure design, predictive modeling, dewatering strategy and management, fisheries and aquatic ecology, and permitting and regulatory support.

We help organizations identify, approve, and protect sustainable water supplies through integrated hydrogeology, geoscience, and regulatory support. Work includes groundwater and surface water characterization, interaction studies, monitoring programs, conceptual models, and water budgets that inform planning for long-term water supply resilience. Support also covers approvals and licensing, well siting and testing, source water and aquifer vulnerability evaluations, and compliance monitoring and reporting.

When projects intersect with marine or freshwater systems, we provide certified fisheries expertise to support regulatory planning and compliance. Services include habitat assessments, fish salvages, water quality analysis and population surveys to inform impact evaluation and mitigation planning. Support also includes instream flow studies, construction compliance monitoring and risk assessments in aquatic habitats.