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ATTACHMENT 3-2 REVISED GRANT WORK PLAN PROJECT TITLE: Indian River County North Relief Canal Aquatic Plant Project PROJECT LOCATION: The Project will be located on Indian River County property within Indian River County; Lat/Long (27.6916, -80.4614). PROJECT BACKGROUND: The Indian River Lagoon (IRL) is an impaired water body that has been impacted by large discharges of nitrogen and phosphorus into the watershed. The increased nutrient loading can contribute to algal blooms and reductions to the IRL's water quality, impacting aquatic flora and fauna. Indian River County (Grantee) has identified that the construction of a Regional Pollutant Removal Facility for the North Relief Canal would mitigate further nutrient loading impacts on the IRL. Approximately 6,300 acres contribute stormwater runoff and groundwater seepage into the North Relief Canal. The Project will reduce nitrogen pollution to the IRL by approximately 7,614 lbs. of total nitrogen and reduce phosphorous pollution by approximately 1,251 lbs. of total phosphorous. The captured nutrients will be stored in harvested plant tissue and composted, and/or be used as cover material for the Grantee's landfill. PROJECT DESCRIPTION: The Grantee will construct a Regional Pollutant Removal Facility that will use naturally occurring aquatic plants to absorb and remove dissolved nutrients from the North Relief Canal. The initial projected flow rate from the North Relief Canal into the RPRF will be an estimated 10 million gallons per day. The Project's main treatment module will be water lettuce scrubbers that will remove the majority of the nutrients and settleable suspended solids from the water. The water lettuce system will be followed by an algal treatment unit for reoxygenation and additional nutrient polishing of the water, and then followed by a final settling and wetland formation to offer additional detention time and further nutrient reduction. The Grantee does not anticipate that the funding under this Agreement will result in a fully completed project, so this Agreement will cover a portion of the work. TASKS: All documentation should be submitted electronically unless otherwise indicated. Task 1: Construction Deliverables: The Grantee will construct a Regional Pollutant Removal Facility in accordance with the construction contract documents. Documentation: The Grantee will submit 1) a copy of the final design; 2) a signed acceptance of the completed work to date, as provided in the Grantee's Certification of Payment Request; and 3) a signed Engineer's Certification of Payment Request. Performance Standard: The Department's Grant Manager will review the documentation to verify that the deliverables have been completed as described above. Upon review and written acceptance by the Department's Grant Manager, the Grantee may proceed with payment request submittal. Payment Request Schedule: The Grantee may submit a payment request for cost reimbursement no more frequently than monthly. 35