Kohls Vero Due DilIgence Stormwater / Utilities

CLIENTS:

RM-TRION

KOHLS

LOCATION:

WEST VERO / INDIAN RIVER COUNTY, FLORIDA

ESTIMATED CIVIL CONSTRUCTION COST:

$3,000,000

PROJECT DESCRIPTION / SCOPE OF WORK:

PERFORMED AN XP-SWMM STUDY FOR THE OFFSITE CANAL BOUNDARY CONDITIONS, AN ONSITE ICPR WET DETENTION POND AND DRY RETENTION POND STUDY, AND AN ANALYSIS OF THE SITE'S PROPOSED WASTEWATER FLOW THAT WILL ULTIMATELY DISCHARGE INTO A INDIAN RIVER COUNTY LIFTSTATION. THE ONSITE POND SIZING STUDY INCLUDED AN ADDITIONAL 2.9 ACRES OF 90TH STREET RUNOFF AS IT WAS REQUIRED BY THE COUNTY FOR THE 24 AC SITE TO ATTENUATE THE COUNTY ROAD'S RUNOFF DUE TO REQUIRED WIDENING OF THE ROAD FOR THE PROJECT.  THE ONSITE POND WAS SIZED AT 2.3 AC WITH A DRY POND SIZED AT 1.0 AC TO PROVIDE THE TREATMENT TRAIN FOR PHOSPHOROUS AND NITROGEN REMOVAL. INDIAN RIVER LAGOON IS CONSIDERED AN IMPAIRED WATER BODY. ST. JOHNS RIVER WATER MANAGEMENT DISTRICT REQUIRED US TO PROVIDE AN 80% COMMERCIAL LAND USE POLLUTANT REMOVAL EFFICIENCY WITH OUR 14 DAY RESIDENCE TIME WET POND (60%) AND DRY RETENTION POND PROVIDING THE REMAINING POLLUTANT REMOVAL, ESPECIALLY FOR THE NITRATES. PONDS 3.3 NUMERICAL MODEL, WITH A BUILT-IN MODFLOW ALGORITHIM, WAS THEN UTILIZED TO ASSURE THAT THE WATER TABLE RECOVERED WITHIN THE REQUIRED 36 HOUR RECOVERY PERIOD.  DRY RETENTION UNDERDRAINS WERE NOT NECESSARY IN OUR INITIAL ANALYSIS USING THE PONDS NUMERICAL MODELING SOFTWARE.