Melbourne Consumptive Use Permit

The City of Melbourne owns and operates two water treatment facilities that use surface water and brackish groundwater sources, making it a unique water supply system using 100 percent alternative water supply (AWS) to meet customer demands. The city plans to expand its reverse osmosis treatment facility, which treats brackish groundwater, from 5.0 to 10.0 MGD to increase water quality to baseload this facility and use its 20 MGD surface water treatment facility to supplement the water demand.

The City of Melbourne was due to renew its Consumptive Use Permit (CUP) with the St. Johns River  Water Management District (SJRWMD) in early 2019. CHA assisted in obtaining a 30-year CUP, the first one in SJRWMD, to continue to meet the city’s rising water demand in the next 30 years. The City of Melbourne met the regulatory criteria to request a 30-year permit, one being that the city completely relies on AWS to meet water demand.

The City of Melbourne demonstrated that the requested slight increase in ground water and surface water allocation did not have significant environmental impacts. The East Central Florida (ECF) ground water flow model was used to show that the estimated drawdowns in both the surficial aquifer system (SAS) and the upper Floridan aquifer (UFA) system are less than or equal to 0.15 feet and 2.50 feet, respectively. As part of the CUP application process, CHA:

  • Performed modeling on the groundwater supply
  • Assisted the SJRWMD with the modeling of the surface water supply
  • Performed population and water demand projections
  • Performed an environmental impact assessment on the proposed withdrawal allocations
  • Prepared and submited the CUP permit renewal application
  • Met with the SJRWMD in advance of submitting the permit renewal application
Project Services:
  • Alternative Water Supply
  • Consumptive Use Permit
  • Groundwater Modeling
  • Population and Water Demand
  • Environmental Impact Assessment