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Implications of Climate Change for RI Wastewater Collection & Treatment Infrastructure

  • RI Wastewater Climate Change Study
    Implications of climate change for RI wastewater collection & treatment infrastructure
  • Community Profile Data
    Learn more about the climate vulnerability for wastewater treatment facilities
  • Interactive Map of Flooding Data
    View inland flooding data, coastal shoreline changes and download data for GIS systems
  • Stormtools Interactive Coastal Flooding Map
    A RI based sea level rise and storm surge projection map viewer developed by the RI Shoreline Change Special Area Management Plan (Beach SAMP).
  • 2010 Flood History
    Take a look at Rhode Island's 2010 floods through the lens of the state's wastewater collection and treatment operators.

In Rhode Island, as elsewhere, increasing storm intensities have damaged wastewater treatment plants and pump stations. It is expected that climate change will increase these threats. Our state is home to nineteen major wastewater treatment facilities which treat close to 120 million gallons of wastewater every day. Because water naturally flows downhill, many wastewater facilities and associated pump stations are at risk of inundation since their designs utilize low elevations, which are often riverine or coastal floodplains.

About the Study

The RI Department of Environmental Management, in collaboration with the state’s Office of Housing and Community Development, recognized the need to begin integrating climate change considerations into wastewater system planning and design. This study is a planning tool intended to help us all understand the projected implications of climate change on the state’s nineteen public wastewater treatment systems. It focused on the municipal treatment plants and the major pump stations that help bring flow to those treatment plants. It did not include wastewater infrastructure owned by private entities or onsite systems with subsurface disposal.

The study was undertaken in five steps:

  • Assess the potential for impacts to Rhode Island caused by natural hazards associated with climate change;
  • Preliminarily assess climate change impacts to Rhode Island wastewater infrastructure;
  • Refine the assessment and the risk of impacts on Rhode Island wastewater infrastructure;
  • Develop recommendations for adaptive strategies; and
  • Compile the work in a technical report; offer the data used in the study online at no cost; and provide summary outreach materials for local officials and the public.