Consumptive Use Permit Deep Well Installations and Monitoring
   Florida

Overview
On behalf of the City of Sanford and the City of Lake Mary, Water & Air Research, Inc. (Water & Air) prepared a Saline/Brackish Water Well Construction and Testing Plan. This plan was required by the St. Johns River Water Management District (SJRWMD) to address City of Sanford and City of Lake Mary consumptive use permit (CUP) conditions. As part of the plan Water & Air determined the locations for an Upper Floridan Aquifer Monitoring Well (UFMW) and Lower Floridan Aquifer Monitoring Well (LFMW). The UFMW was designed to monitor groundwater quality at the base of the Upper Floridan aquifer above the middle semi-confining unit at a depth of approximately -500 feet National Geodedict Vertical Datum (NGVD). The LFMW was designed to monitor groundwater quality at the top of the Lower Floridan aquifer below the middle semi-confining unit at a depth of approximately -800 feet NGVD. Both wells were designed to be utilized as part of an existing groundwater monitoring network to confirm that operating several municipal wellfields is not adversely impacting groundwater quality in the area of groundwater withdrawal. Both wells were designed as triple-cased wells to promote borehole stability, allow collection of water quality samples during well construction, minimize groundwater mixing, and to allow a discrete water-bearing zones (i.e., approximately 50 feet thick) to be monitored at the base of each well.

Details

  • Water Use Permitting
  • Geophysical logging
  • Well permitting
  • Bid specifications
  • Regulatory agency coordination
  • Wellfield sitting
  • Compliance Monitoring
  • Water Quality Testing

Results
Our experience with Florida's hydrogeology and designing and installing deep Floridan Aquifer wells allowed us to propose and implement several well construction modifications during installation of the wells. These modifications were approved by the WMD prior to implementation and resulted in the project being completed ahead of schedule and within the original contract amount.
Real People • Real Solutions