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Qualifications of key personnel; The knowledge and hydraulic modeling experience with the use of water quality and watershed models in Florida includes but is not limited to the following:

  1. Spatially distributed hydrologic and hydraulic modeling and scaling using ICPR modeling software
  2. Integration of hydrological and hydraulic models and remote sensing data into GIS
  3. Surface and groundwater interactions modeling using XP-SWMM Modeling software
  4. Spatial and temporal land cover dynamics and scaling, spatial
  5. Watershed characterization and modeling using Remote sensing and
  6. Evapotranspiration estimation using satellite imagery
  7. SWMM hydraulic modeling (including groundwater recharge and event mean
    concentration water quality modeling) that simulates the full hydrologic cycle
    with continuous simulation seasonal modeling of long term rainfall (using
    DB-Hydro Database and BCB gauges) as part of the calibration and verification of
    the models.
  8. Two-dimensional hydrodynamic and hydraulic modeling and water quality analysis of estuary
    and tidal marsh systems including the design of the field instrumentation
    program, the analysis of physical and water quality data, and the hydrodynamic
    and hydraulic modeling.
  9. Water quality analyses, using the RMA4 constituent transport model
    to create a model for Nitrogen distribution within several coastal salt ponds.
  10. MODFLOW 3D groundwater hydraulic modeling for consumptive use permits simulating
    groundwater drawdown on lakes and wetlands by pumping from wells and lakes.
  11. Development and application of a groundwater/surface water
    interaction model, using MOD-HMS, to analyze the operations of the Marsh Driven
    Operations Plan for pumps and detention basins, under the guidance of no-harm
    criteria and the Everglades restoration goals.
  12. Numerical hydraulic modeling in the areas of pollutant transport, surface
    and groundwater hydrology
  13. Numerical hydraulic modeling of wave refraction and diffraction, sediment
    transport, and shoreline change using hydraulic modeling.
  14. Hydraulic Modeling of the groundwater flow produced in the Surface Aquifer
    System (SAS) and subsequent groundwater quality analysis.
  15. Developed a two-dimensional wave transformation hydraulic model, using MIKE
    21, to study wave transformation, at site of proposed waterfront development
    project, through barrier islands and across the shallow bathymetry of the sound
    during severe storms.
  16. Conducted a full harmonic study of the wave environment using the
    MIKE 21 Boussinesq wave model to characterize resonant harmonics and disturbance
  17. Finite element model simulations of storm surge caused by tropical
    storms and hurricanes using the ADCIRC hydrodynamic software developed by the US
    Army Corps of Engineers.
  18. Potable water analysis with infowater hydraulic modeling techniques directly for Miami-Dade County WASD

Local Hydraulic Modeling / Hydrologic Modeling

  1. Familiarity with South Florida water resources issues, constraints,
    policy influences, and stakeholder interests;


    1. The Team engineers expertise in a broad range of South Florida water resources projects including all
      scales of modeling: hydrologic, hydraulic, hydrodynamic, flood protection, water
      quality; environmental services: permitting, environmental assessments,
      restoration and remediation; design of water control structures: dams, levees,
      canals, pump stations, culverts, tidegates; and program/project management. The
      work has been completed for clients in the Federal, State, municipalities, as
      well as the private sector.
    2. Relevant externally funded projects of our team staff includes
      multidisciplinary engineering and science for watershed restoration hydrologic
      and hydraulic modeling applied to: stormwater management master plans,
      stormwater treatment, water quality assessments, flood control, water control
      structure design and modifications, water and wastewater infrastructure
      improvements, environmental assessments, environmental impact studies,
      environmental remediation, point and non-point source pollution control, and
      Total Maximum Daily Load (TMDL) investigations and permitting.

Hydraulic Modeling / Hydrologic Modeling Experience

  1. List of Projects:
    1. Kissimmee Basin Modeling and Operations Study: Our hydraulic modeling experts and researchers have
      participated in the various modeling tools being developed for this study to
      screen, formulate and evaluate alternatives to modify structural operations in
      the Kissimmee Basin in order to achieve a more acceptable balance between flood
      control, water supply, aquatic plant management, natural resource requirements
      of the Kissimmee River, the Kissimmee Chain of Lakes and downstream ecosystem
      impacts (Lake Okeechobee).
    2. Development of RSM hydraulic modeling interface with the Everglades Agricultural
      Hydrology Model (EAHM): An interface modeling tool was written to link the
      SFWMDs RSM to the EAHM. This linkage code was written in C++ to allow both
      models to run simultaneously and exchange input and output information. This
      model interface was developed as a collaborative project between the SFWMD and
      the USDA.
    3. Hydraulic modeling and Ecohydrologic Modeling of Marsh Driven Operations inEverglades
      National Park: The primary objective of
      this project was to develop and apply a groundwater surface water interaction
      model to analyze the operations of the MDOP for S-332B, S-332C, and S-332D pumps
      and detention basins, under the guidance of no-harm criteria and the
      restoration goals. This work was performed for
      the South Florida Ecosystem Office of the National Park Service.
    4. Updated the Western C-11 Stormwater Master Plan Facilities Update in Western
      Broward County for Central Broward Water Control District. The project included data collection
      of hydraulic structures, basin land uses, water quality and seepage from
      Everglades. XP-SWMM hydraulic modeling and calibration to Hurricane Irene (1999) and No Name Storm (2000) ,
      Flood Plain Encroachment Modeling for the 100 year 3 day storm (18.5 inches of
      Rainfall) to establish 100 year Flood Plain Elevation Criteria for all
      undeveloped land , and the planning for alternative design improvements (Culvert
      Replacements at key locations, Pump Stations, and Dredging).  The hydraulic modeling included 65 Central
      Broward W.C.D. Sub-basins, South Broward Drainage District basins and pump station, the City of Weston’s
      basin and its two pump stations, South Florida Water Managements S-9 Pump
      Station, S-13A control structure, and Levee seepage flow data.
    5. Stormwater Management Master Plan,City of Doral
      This project involved the development of a stormwater master planning numerical
      hydraulic modeling in XP-SWMM. Modeling activities centered on defining the hydrologic
      parameters for model input, development of criteria for simulation of structural
      operations and analysis, QA/QC of modeling results, production of final reports
      and presentations to the client and the public.
    6. DERM-01Stormwater Master Plan C-6 Basin, Miami, Florida. (2003)  The project’s scope of work was to utilize an existing basin master plan and try alternative design hydraulic modeling runs using XP-SWMM. The purpose for the project
      was to improve Flood Control and Water Quality within the basin.  Design alternatives included exfiltration trench, dry retention areas,
      ponds, conveyance upgrades and Best Management Practices criteria changes for
      local municipalities.
    7. SFWMDWest Palm Beach Office, Comprehensive Everglades Restoration Plan (CERP) – Data Compilation for the Lake
      Belt and L31N Pilot Project,West Miami-Dade County, Florida. The two
      pilot projects are being conducted in order to address uncertainties prior to
      full-scale implementation of their associated components. We were responsible to
      contact private and public agencies and obtain applicable modeling data, QA/QC
      the data for applicability. Agencies that data was retrieved and reviewed: US
      Corps of Engineers, SFWMD, DERM, WASD, USGS, Everglades National Park, EPA,
      Florida Department of Environmental Protection, Florida Geological Survey, NOAA,
      UM, FIU and FAU.
    8. Central Broward Water Control District, District Engineer Contract,Broward County
      Florida. (1) Review of drainage design and
      related modeling for construction projects within the district. Plats,
      Paving-Grading and Drainage Plans, and Lake-Canal-Drainage As-Builts were reviewed
      and recommended to the District Board for Approval. Permittees included FDOT
      District IV, FDOT Turnpike District, Broward County Engineering, Town ofDavie, Town ofSouthwest Ranches,Cooper
      City, CityofHollywood, City ofSunrise, Broward County School Board, Geopak-BHA,
      Lennar Homes, GL Homes, Centex Homes, Rick Case Honda, Publix, St. Marks Church.
      (2) Modeling and design of several capital improvement projects including
      several culvert upgrades, CFD (FLOW-3D) model of a confluence of flow from two
      stormwater pump stations pumping into the C-11 Canal directly across from each
      other. Hydraulic modeling and review of USACE spillway in C-11 canals to establish the head
      impacts on downstream sub-basins.
    9. Broward County Regional Central Park Modflow Groundwater Model:  Reasonable assurance
      was provided by conducting groundwater hydraulic modeling. Scope
      included: Conducted a site vicinity environmental characterization using
      Federal, State, and local government database searches to identify potential and
      existing contaminated sites; Identified existing legal users and existing legal
      domestic users. Conducted supplemental irrigation volume calculations;
      Constructed MODFLOW groundwater models of the proposed groundwater withdrawal
      and demonstrated drawdown with respect to contaminated sites, existing legal
      users, existing legal domestic users, surface water bodies, and sensitive areas.
      The hydraulic modeling impact assessments were conducted for the proposed withdrawal alone
      and the proposed withdrawal with the accumulative drawdown of all existing legal
      users and pending applications. Proposed locations of recharge wells and surface
      water pumps, irrigation schedules based on need, wells and surface water
      withdrawals were simulated.
    10. PG and E Indiantown Cogeneration Plant: Well Hydraulics, Water Quality
      and Groundwater Modeling:   Contracted by PG and E to answer questions from FDEP on the impact of the cone of
      depression on a nearby user, particularly a superfund site (Ameristeel Site)
      north of the plant.  Groundwater hydraulic modeling was performed for the
      geochemistry and the geology to determine the groundwater flow zones.  Created contour maps
      of the groundwater flow and calculated the amount of
      drawdown on the Surface Aquifer System (SAS) from pumping the Floridian Aquifer.
      We then modeled the groundwater flow produced in the Surface Aquifer System
      (SAS). Groundwater water quality conditions were then evaluated based on
      modeling output.
    11. Hydraulic Model Evaluation Study for Regional Scale Aquifer Storage and
      Recovery (ASR): This project involved the development of a procedure to evaluate
      numerical models for variably density groundwater flow with applicability to
      simulate ASR systems. In this project, hydraulic modeling activities centered on defining
      the criteria for model selection, evaluation of existing numerical models,
      development of a simulation tool with SEAWAT, production of final reports and
      presentations to the client and the public.
    12. Stormwater Management Master Plan for Immokalee, FL:
      This project involved the development of a stormwater master planning numerical
      hydraulic modeling using XP-SWMM. In this project, modeling activities centered on defining the
      hydrologic parameters for model input, development of criteria for simulation of
      structural operations and analysis/QA/QC of modeling results, production of
      final reports and presentations to the client and the public. Hydrologic and hydraulic modeling
    13. Re-engineering FLOW program for the SFWMD: The FLOW program is a
      FORTRAN-based hydraulic model used by the SFWMD for calculating flow from
      culverts, spillways, weirs, and pump stations. The re-engineering work included
      reviewing the algorithms and the source code, the data transmission between FLOW
      and the databases DBHYDRO and DCVP, and developing and testing a new program
      (named NFLOW) to replace the existing FLOW.
    14. Method assessment for determination of appropriate sediment TMDL
      endpoints in Oklahoma: This project involved the development of a specific protocol for defining
      sediment Total Maximum Daily Load (TMDL). The project involved the statistical
      analysis of the habitat difference among 54 reference and impacted streams in
      the State of Oklahoma, adapting the SWAT model (Soil and Water Assessment Tools) to calculate flow and
      sediment loading from four Oklahoma watersheds, and the development of a model, based on Yangs Unit Stream Power
      Formula, to calculate sediment transport in river channels.
    15. Surface energy flux from agricultural fields using remote sensing:
      This study analyzed Landsat imagery of wheat and soybean fields in
      Northwestern Minnesota from 1997-2002 to study the latent
      heat flux from the two field employing the SEBAL model. The study also
      correlates yield to the modeled latent heat flux.
    16. Energy-carbon flux linkage: Use of ANN and remote sensing in
      estimating carbon and energy fluxes: This study used ANN technique to couple the
      carbon and energy fluxes for the grassland, forest and agricultural ecosystems.
      A separate study also used remote sensing-based  energy fluxes and land surface parameters (net radiation (Rn), soil heat
      flux (G), sensible heat (H), latent heat (LE), emissivity (e), albedo (a),
      normalized difference vegetation index (NDVI) and surface temperature (Tsur) to
      compare two grazing fields of different grazing density in Mandan, North Dakota.
    17. Caribbean Coastal Scenarios: This project aimed at gathering and
      developing ecohydroclimatological database for coastal watershed of Jamaica,
      Dominican Republic, Cuba and Puerto Rico, modeling delivery of water, sediment
      and nutrients to coastal waters and development of practical scenarios of
      land-cover and climate change and their impact on the coastal biodiversity and
      marine biota.
    18. Transboundary Water for Biodiversity in the Mara River Basin, Kenya andTanzania:
      Supported by USAID, the two year project will work closely with local
      collaborators inKenyaandTanzaniato understand the role of transboundary river (Mara
      River) in maintaining the biodiversity in the lower basins of Mara. This will involve
      hydrological modeling to estimate the spatiotemporal variability of the flow,
      the effect of water abstractions on the ecological functions of the Game
      Reserves and National Parks.
    19. Kissimmee River ecohydrological restoration evaluation using MODIS Data: This study uses
      MODIS-based fractional vegetation cover latent heat flux to evaluate the
      temporal and spatial changes as a result of the restoration.
    20. Impervious surface area (ISA) dynamics of southFlorida: Spatiotemporal dynamics of ISA
      mapped using Landsat images and changes are used to explain the hydrologic and
      flood frequency changes of the area. hydraulic modeling
    21. Eutrophication ofFlorida
      Bay: using ANN, level of algal blooms (Chlorophyll a) was predicted from other environmental and water
      quality data. Publication highlighting this finding is accepted in Journal of
      Coastal Research.hydraulic modeling
    22. An Evaluation Modeling Approach of Contaminants of Concern under
      the Source Water Protection Program for the State of Florida: This study
      addressed, at least, two fundamental aspects of the source water protection
      program priorities in the State of Florida: a) identifying potential surface and
      groundwater contaminants from industries, crops and other potential groundwater
      polluting sources; and b) developing a scientifically based model, with a
      ranking scheme, that uses toxicity, mobility, and relative amounts of specific
      contaminants to identify and rank the top three contaminants of concern by
      industry and crop. The ultimate purpose of this project was to support programs
      that comply with federal and state laws, which call for the protection of
      groundwater supplies in the State of Florida. hydraulic modeling
    23. A Case Study of Modeling and Evaluation of a USA Southeastern
      Watershed: This study is tests the ability of modeling to simulate the
      hydrologic and hydraulic modeling behavior of a watershed as a holistic approach to
      manage non-point source (NPS) runoff and pollution. The Simulator for Water
      Resources in Rural Areas Water Quality (SWRRBWQ), a watershed management
      computer code, was implemented and evaluated. Its capacity to simulate water
      yield and other variables for two of the Little River experimental watersheds inGeorgiawas
      evaluated. The watersheds (i.e., watershed B and its subwatershed K) are part of
      the Upper Little River System in the Gulf-Atlantic Coastal Plain of the
      southeastern United States. The prime objective was to simulate monthly and annual water yield. Water yield
      was the key indicator to evaluate the predicted, individual and comparative,
      hydrologic behavior of the two watersheds and to define prediction
    24. Development and Evaluation of a Geographic Information System Based
      Method to Estimate Flooding Susceptibility in an Area of Broward County,
      Florida: This investigation developed a GIS-based multi-class index overlay
      model to determine areas susceptible to inland flooding during extreme
      precipitation events in south Broward County. hydraulic modeling.
      Florida. The investigation used airborne laser terrain mapper elevation data and depths estimate from the US
      Soil Conservation rational formula. The method shoed some potential as a
      predictive tool for flooding susceptibility but needs further optimization.
    25. Development of a Mathematical and Computer Model to Assess Water
      Quality Impacts of Hazardous Compounds from Minor Gasoline Spills in the
      Inter-tidal Zone of the Miami River, Florida: The objective of this
      investigation was to develop a model to predict transport and fate of gasoline
      components of environmental concern in the Miami River by mathematically
      simulating the movement of dissolved benzene, toluene, xylene (BTX), and
      methyl-tertiary-butyl ether (MTBE) occurring from minor gasoline spills in the
      inter-tidal zone of the river. Computer codes were based on mathematical
      algorithms that acknowledge the role of advective and dispersive physical
      phenomena along the river and prevailing phase transformations of BTX and MTBE.
      Phase transformations included volatilization and settling. The model uses a
      finite-difference scheme of steady-state conditions, with a set of numerical
      equations that was solved by Gauss-Seidel iteration. A numerical validation
      process was conducted by comparing results with analytical and numerical
      reference solutions. Sensitivity analysis and other user-friendly software were
      built-in with the model code embedded. This computer model can be used for the
      rapid assessment and management of the effects of minor gasoline spills on
      inter-tidal riverine water quality.
    26. A hydraulic modeling study on the Hydraulic Regimes of the Miami River,Miami-Dade County, Florida: This investigation fills up a gap in the understanding of the hydraulics of theMiami, River inMiami-Dade County, Florida.
      First a historical overview is provided with emphasis on the changes to the
      natural system. Available data was qualified to estimate the range of flow
      regimes and associated indicators, including Froude Numbers and characteristic
      regimes. A critical analysis was included to estimate the pros and cons of
      available data as a basis to establish volumetric balances in support of
      contaminant transport analysis. hydraulic modeling
    27. aa.
      Applicability of the Stream Water Quality Model QUAL2E to Slow
      Velocity Subtropical Canals inFlorida:
      This investigation assessed the applicability of the stream model QUAL2E in
      modeling theTampa Bypass Canaland the Caloosahatchee
      River in Florida, both being slow velocity subtropical canals. Verification, calibration and validation were
      conducted. Hydraulic parameters used predictions from the hydraulic routines of
      model HEC-2. Simulations were conducted to evaluate the impact of nutrient laden
      water from the Everglades Agricultural Area.
    28. bb.
      Evaluating the Effectiveness of a Delineated Wellhead Protection Area in Dade County ,Florida:
      the Northwest Wellfield : This effort addressed the comparative evaluation of the effectiveness of the Wellhead protection
      Program (WHPP) in the North Wellfield of Miami-Dade County, Florida. Conclusions and recommendations were critically
      offered regarding the impact of land uses and zoning criteria. WHPA and WHEM were models included in the comparison