The proposed scope of services is as follows: Step 1: Inventory existing sewer infrastructure; determine existing conditions, location, past impacts from extreme weather events, etc Step 2: Determine extent of flood risk to existing infrastructure using sea level rise and groundwater rise data projections as well as projected increases in extreme precipitation derived from the New Hampshire Coastal Flood Risk Guidance Part 1: Science, the EPA’s Climate Resilience Evaluation and Awareness Tool (CREAT) and other applicable data. Step 3: Using data from Step 2, determine the existing infrastructure’s tolerance for flood risk and areas most vulnerable to damage or disruption from flooding. Step 4: Identify and evaluate adaptation strategies for mitigating flood risk to existing infrastructure. Step 5: Prioritize adaptation strategies for future implementation. The intent of the grant proposal was to result in a complete project application for future funding opportunities to support the mitigation activities derived from the assessment and to support Rye’s Hazard Mitigation Plan (2022). Step 6: Ensure the Sewer Infrastructure Vulnerability Assessments fulfills the Environmental Protection Agency (EPA) major storm and flood event adaptation planning requirement as part of the National Pollutant Discharge Elimination System (NPDES) permitting process. Step 7: To integrate the vulnerability assessment results into the Sewer Commission’s asset management program.
