Laserfiche WebLink
ATTACHMENT <br />JLA Geosciences, Inc. <br />HYDROGEOLOGIC CONSULTANTS <br />1907 Commerce Lane, Suite 104 <br />Jupiter, Florida 33458 <br />(561) 746-0228 <br />fax (561) 746-0119 <br />November 27, 2024, Via Electronic Mail <br />Gustavo Vergara, CPRE <br />Parks, Recreation & Conservation <br />Operations and Programs Assistant Director <br />1590 Stn St SW <br />Vero Beach, FL 32962 <br />RE: Proposal for Indian River County, Parks, Recreation & Conservation Department, <br />North County Pool Heat Exchange System UFA Supply Well Abandonment <br />Dear Mr. Vergara: <br />JLA Geosciences, Inc. (JLA) is pleased for the opportunity to assist Indian River County Parks, <br />Recreation and Conservation Department (IRC) with hydrogeologic consulting services. The IRC <br />North County Aquatic Complex (NCAC) operates a closed loop heat exchange system to regulate <br />water temperature utilizing water from the Upper Floridan Aquifer (UFA). Recently the UFA <br />supply well started producing substantial quantities of sand and has made the heat exchange <br />system inoperable. A recent downhole investigatory video and testing scope identified multiple <br />failures in the supply well casing and it was determined that the well could not be repaired. <br />Additionally, after the well was shut in artesian flow to the ground was observed on the outside <br />of the UFA supply well steel casing. The uncontrolled artesian flow through holes in the well <br />casing to the ground surface needs to be addressed immediately by properly plugging and <br />abandoning the NCAC UFA supply well. <br />Outlined below are the specific tasks included in our proposed scope of work, along with the <br />associated costs for your thorough review and consideration. Our dedicated team is committed <br />to delivering outstanding results, ensuring the project maintains the highest standards of quality. <br />1.0 NCAC UFA Supply Well Abandonment — Well abandonment work will include mobilization, <br />salt killing well, installation of tremie pipe to maximum allowable depth, pumping of neat <br />cement grout from bottom of well up to land surface to properly abandon the well. A JLA <br />hydrogeologist will coordinate with CLD on the well abandonment and will be present on- <br />site to confirm tremie pipe depths, grouting procedures and quantities to ensure proper well <br />abandonment. Following abandonment CLD will complete a well abandonment permit for <br />submittal to St. Johns River Water Management District (SJRWMD). <br />jlageosciences.com <br />165 <br />