Water Resource Assessment

 

The Water Resources Assessment Program​

​helps to evaluate the status of Broward County’s water resources to ensure threats of climate change, pollution, or over use are mitigated and our primary supply of the Biscayne Aquifer remains sustainable. The backbone and guidance for many of these programs is the Broward County Integrated Water Resources Plan (IWRP). Funded by Broward County and the SFWMD, its goal was to coordinate the sources and users of water in Broward County for effective and efficient local water management by making better use of local rainfall and infrastructure. The program also explores the feasibility of alternative water resources such as use of the Floridan Aquifer, harvesting of stormwater (C-51 reservoir), and application of reuse water for recharge to name a few. The program also monitors regional initiative such as the Comprehensive Everglades Restoration Plan (CERP) and components that are will affect Broward County such as the Central Everglades Planning Project and Broward County Water Preserve Areas.

Future Conditions Map Series
                                                                   Interactive Map        Static Map
On February 7th 2017 the Broward County Board of Commissioners approved the future conditions map series (Item 7). This item provides for the creation of a series of maps that will be used to aid in the design of infrastructure to be resilient with anticipated climate change effects. The first map in the series is the Future Conditions Average Wet Season Groundwater Elevation Map. This map will provide the antecedent conditions for new or major modifications to surface water permitted projects. ​
 
 
C-51 Reservoir
The C-51 reservoir is an alternative water supply which would capture stormwater runoffs in the C-51 basin. This would help reduce harmful runoffs of stormwater to the Lake Worth Lagoon while also providing a source of water that would be released and routed to municipal wellfields in the dry season. C-51 Reservoir
Saltwater Intrusion Modeling

Many of Broward County's oldest and largest cities are found along the coast where their drinking water supplies are threatened by saltwater intrusion. Broward County in collaboration with the USGS has been developing variable density models to help better manage this threat. The models are calibrated to historic data sets, go through sensitivity analysis to determine which natural and anthropogenic stresses affected the historical movement, and perform predictive analyses to test future conditions both with and without adaptation strategies.

Northern Saltwater Intrusion Paper (Published Sept 2013) pdf, 2 mb
Central and Southern Saltwater Intrusion Report (Published March 2016)

 

Saltwater Intrusion Modeling

Climate Change / Stormwater Modeling

With increased flooding in response to high high tides and or high rainfall storm events the County is expanding its groundwater modeling to include a new Urban Runoff Package (URO). The modeling will focus on two representative areas of Broward County: 1) a tidally influenced community and 2) an inland community dependent on downstream drainage. The model will look at the effects of downscaled climate data and projected sea level rise scenarios will have with and without adaptive strategies to help mitigate future conditions.

Stormwater/Climate Change Inundation Proposal
Urban Runoff (URO) process for MODFLOW 2005: Simulation of Sub-grid Scale Urban Hydrologic Processes in Broward County, Florida

 

Inundation Modeling

Floridan ​Aquifer Feasibility Study

The use of the Floridan Aquifer as an alternative water supply with increasing population and possible loss of traditional sources (to saltwater intrusion) requires additional studies for optimal and sustainable use.

Phase 1: The completed Phase 1 of the Upper Floridan Feasibility Study gathered all available well information and commissioned a new well (G-2984) to be drilled, cored, and logged. In total, 84 wells at 33 sites were utilized to help construct the cross-sections and maps representing the stratigraphic and hydrogeologic units of the Floridan Aquifer in urban Broward County. An additional component of the project was to complete seismic profiling along approximately 14 miles of the Hillsboro Canal. 

Open File Report on Upper Floridan Feasibility Phase 1:
Open File Report on Seismic Reflection Collection and use as part of Upper Floridan Phase 1 & 2:
Scientific Investigations Report on Upper Floridan Feasibility Phase 1

Phase 1 Floridan Aquifer Study 


Phase 2: Phase II of the Upper Floridan Feasibility Study is currently underway to further refine the hydrogeologic framework and regional extent developed from Phase I.  The current status of the project includes the completed acquisition and processing of an almost 60 miles of seismic-reflection data which will be used to complement the original 14 miles previously obtained along the Hillsboro Canal. The newly acquired seismic-reflection profiles locations include reaches of the C-9, C-11, C-13, L-36, L-35A, and North New River Canal. Enhanced technology and data collection methods now allow for the viewing of the part of the surficial aquifer, Upper Floridan, Avon Park Permeable Zone, Lower Floridan, Boulder Zone, and possibly upper Cretaceous limestone.

USGS Project Summary Page
Upper Floridan Phase 2 Proposal - pdf, 1 mb
Open File Report on Integration of Seismic Reflection and Well Data to Access Potential Impact on Sustainable Water Supply from the Floridan Aquifer

 

Phase 2 Floridan Aquifer Study

Water Quality and Quantity Monitoring

Broward County, the U.S. Geological Survey, the South Florida Water Management District, and numerous municipalities fund the collection of water quality (chlorides and nutrients) and quantify (groundwater and surface water elevation) data.  This data is found on numerous sites with some keys links found below:

Broward Canal Water Quality
USGS Water Quality and Levels
South Florida Water Management District DBHYDRO Database

 

Water Quality and Quantity Monitoring

Central Everglades Planning Project (CEPP)​

CEPP’s goal is to deliver a finalized plan, Project Implementation Report (PIR), for a suite of restoration projects in the central Everglades to prepare for congressional authorization, as part of the Comprehensive Everglades Restoration Plan (CERP). Broward County participated in the project development team meetings and sub groups such as the water supply group to review plans, make suggestions, voice concerns, and verify results. The CEPP initiative involved linking many previously planned projects into one that could be implemented sequentially to provide immediate benefit and restore traditional sheet flows through the central everglades.

 

Central Everglades Planning Project 

Everglades Plan CEPP Summary Page​
Specific to Broward County and as approved by WRRDA 2014 is The Broward County Water Preserve Area (WPA). This project will reduce seepage losses from the Water Conservation Area (WCA) via the 3A/3B buffer strips and store and distribute stormwater in the C-11 and C-9 impoundments.

Historic Efforts