Climate Adaptation

More and more municipalities must consider the impacts of evolving climate conditions to prevent catastrophic damage to water and wastewater infrastructure. Others must alter or diversify operating protocols to maintain service under threat of drought or other extreme conditions. Hazen and Sawyer has helped many municipalities identify and prepare for a range of possible climate conditions and develop cost-effective strategies for protecting public health and the environment.

New York City commissioned a study from Hazen and Sawyer to identify and quantify the impacts of increased precipitation, sea level rise, storm surge, and temperature on the City’s wastewater collection and treatment systems. The study produced valuable vulnerability and adaptation data that has since been used to revise the City’s design guidelines, emergency action plans, and capital improvement projects.

Hazen and Sawyer conducted an analytical study to determine the potential effects of sea level rise and storm surge impacts at Miami-Dade Water and Sewer wastewater treatment facilities. Adaptation strategies were also considered for all of the wastewater treatment plants.

Hazen and Sawyer was lead investigator in Water Research Foundation project 4263, which studied anticipated water demands and use patterns under a range of climate change scenarios.

We performed a comprehensive analysis of demand patterns for the City of Phoenix (AZ), which identified key influences on long-term water efficiency and the conservation potential that could be realized under acute water shortage conditions in order to improve the City’s long-term planning policies.

Utility owners in South Florida are now actively mandating hurricane resistance to be designed into their treatment facilities. Hazen and Sawyer has assisted several municipalities in designing and constructing better hurricane resistant treatment facilities.

The Nassau County (NY) Department of Public Works selected a joint venture including Hazen and Sawyer to provide program management services for a $2 billion program to stabilize, design, and rebuild its wastewater collection and treatment systems, which received unprecedented damage and flooding during Superstorm Sandy in October, 2012.

Hazen and Sawyer led an extensive analysis of alternatives for expanding Raleigh’s water supply for future growth and increased resilience to climate variability. The project revealed that reallocation of existing regional storage could provide needed supply, while avoiding construction of a new reservoir.

Hazen and Sawyer conducted a project for the Water Research Foundation to identify and characterize water quality impacts of extreme weather-related events and develop the Water Quality Impacts of Extreme Weather Events Tool (WaterQIEWE).

Hazen and Sawyer can provide a full range of services including planning studies, design, and construction and program management to assist communities with climate adaptation solutions. If it is determined that new facilities are needed, we can also design and oversee construction of dykes and levees, green infrastructure, water supply infrastructure, water reuse/reclamation facilities, and/or desalination facilities.

Whether you need to combat the effects of sea level rise and flooding in a coastal community, address decreased supply of clean drinking water from drought or turbidity events, or protect infrastructure and the environment during large precipitation events through stormwater and wastewater management, we can help.

For inquiries contact:
Sandeep Mehrotra, PE, at smehrotra@hazenandsawyer.com