William Paton

Embedded Software Development

Custom Applications for Natural Resource Management

Project Management


GIS Modeling

Toolset Development


Professional Affiliations


Florida Stormwater Association


Technical Proficiencies/Certifications

 DEP SOPs for Surface and Groundwater Sampling

 ArcGIS Model Builder/Geodatabase Schema

 C/C++ programming languages

 Object Oriented Analysis and Design (OOA/OOD)

 Visual Basic/Python Custom Tool Development

 Unified Modeling Language (UML)

 Embedded software development

 Real-time processing/ Experienced debugging in lab environment


Groundwater Pollution: Engaging the Community in Solutions

Marine Resources Council for Brevard County/FDEP

Brevard County, Florida



Stormwater Infrastructure Inventory

City of Indian Harbour Beach.

Brevard County, Florida




Tampa Bay Water Business Management Plan for the Maintenance of the Recovery Assessment ArcGIS Online Map

Water & Air Research, Inc. for Tampa Bay Water

Tampa Area, Florida


City Infrastructure Database Development, GIS System Setup, and Web Application

City of Rockledge

Brevard County, Florida



Indian River Lagoon Watershed Load Development for 3D Numerical Model

Florida Institute of Technology for Brevard County

Brevard County, Florida



State of the Indian River Lagoon Web Application and Ecological Gap Analyses

Indian River Lagoon Natural Estuaries Program

Brevard County, Florida


Groundwater Source Study Leading to Muck Accumulation in Turkey Creek

Florida Institute of Technology for Brevard County

Brevard County, Florida



Cape Canaveral Air Force Station Survey and GIS Mapping

Allen Engineering for the USAF 45th Space Wing

Brevard County, Florida



Model-based Basin Prioritization Effort for the City of Titusville

Environmental Consulting & Technology, Inc. for the City of Titusville

Brevard County, Florida


Custom SWIL-based prioritization model for Military Bases

MSE Consultants, Inc.

 for the U.S. Army Corps of Engineers-Mobile District

Brevard County, Florida


Inventory Mapping and Model Development

Environmental Consulting & Technology, Inc.

City of Titusville, Florida


SWIL 3.0 Development

Brevard County

Brevard County, Florida


Indian River Lagoon Storm Event Monitoring and Load Characterization

Environmental Consulting & Technology, Inc.

SJRWMD, Florida



City of Largo Comprehensive Stormwater Asset Management Plan – Phase 1

GPI, Inc. for the City of Largo

Largo, Florida



Land Cover Development and TMDL Spatial Modeling for the Malabar Annex

3E Consultants, Inc.

 for Mala

Brevard County, Florida


Lowry Park Zoo Utility Mapping

Greenman Peterson, Inc. for the Lowry Park Zoo

Tampa, Florida



Tampa Bay Water Recovery Assessment ArcGIS Web Application

Greenman Peterson, Inc. for Tampa Bay Water

Tampa Area, Florida



GIS Support and Training for the Water Quality Masterplan

Allen Engineering, Inc.

for City of Cape Canaveral

Brevard County, Florida


Stormwater Infrastructure Database Design, TMDL Support and Training

City of Cocoa Beach, FL

Cocoa Beach, Florida



Residential Stormwater Quality Evaluation for the Tampa Bay Estuary Program

Tampa Bay Estuary Program

Pinellas County, Florida



Refining the Indian River Lagoon TMDL

Bussen-Mayer Engineering Group, Inc.

 for Brevard County

Brevard County, Florida


Stormwater Inventory Data Conversion and Geodatabase Development

Bussen-Mayer Engineering Group, Inc.

Brevard County, Florida


Lake Hooker Historic Photointerpretation, Brandon Wellfield

VHB, Inc.

Tampa Bay Water, Florida



William Paton, B.S.
Senior GIS Modeler and Software Developer
Project Engineer


• B.S. Electrical Engineering, University of Central Florida, Orlando, FL, 1982


Mr. Paton has 32 years of technical and project management experience in software design, implementation and integration for a multitude of purposes. Prior to joining AEI in 2012, he worked in the Defense Industry for over two decades, where he managed multimillion dollar projects with several staff engineers. He has extensive experience in estimating large-scale software design estimates, planning and meeting milestones, designing and meeting requirements and integrating the final product. Projects have ranged from real-time detection and identification of targets using compact 3-D laser radar (LADAR) to custom watershed loading models for TMDL implementation, groundwater modeling, and web application development.

Typical tasks include custom toolsets for ArcGIS users to streamline repetitive and complex tasks, and custom applications to enhance data analyses needs when dealing with large datasets. As a lead software team engineer with decades of federal project experience, Mr. Paton can independently define and design the requirements and software architecture, as well as implement and test these systems. Mr. Paton also specializes in database design and custom interfaces for the user, both on desktop and web platforms, as well as technical reporting (software documentation, test plans, and data analysis reports).

Mr. Paton is often involved in developing custom tools to increase productivity of large-scale mapping efforts, reduce human error, and provide user friendly validation tools, both in the office and field settings. He is the lead ArcGIS Online web application developer for Applied Ecology and uses a variety of programming and scripting skills to achieve custom functionality. He is also involved with water quality sampling and quality assurance, and is certified by the University of Florida’s DEP SOPs for Surface and Groundwater Sampling.

Highlighted skills include: C/C++ programming, Visual Basic, VB and Python Scripting, VB Toolset Development, Python Toolset Development, ArcObjects, advanced ArcGIS mapping and training, ArcHydro, ArcNLEt, MODFLOW, advanced QGIS mapping, Object Oriented Analysis and Design (OOA/OOD), Unified Modeling Language (UML), Multi-threaded and Multi-Processor design, Shared Memory Architecture, Real-time operating systems, and the flexibility to use Intel, PowerPC processors, various hardware interfaces, and Built-In-Test hardware interfaces.

Selected Recent Project Experience

Groundwater Modeler, Application Developer. The legislative-funded groundwater pollution modeling project addresses the need to provide a priority plan to identify the critical areas where groundwater contamination is most likely impacting the Indian River Lagoon. AEI’s responsibilities include spatial data acquisition, evaluation, groundwater modeling and respective calibration based on field collected data, and statistical analyses and reporting. Mr. Paton is the leading the effort of model selection, setup, calibration and validation.

Geodatabase Designer and Application Developer. Stormwater inventory management of a geospatial layers, production of hardcopy maps for City staff, and ArcGIS Online Web application updates and maintenance for the City of Indian Harbour Beach, FL. Mr. Paton was involved in original geodatabase development, geospatial layer editing, map production, and integrating constructed facilities in the ArcGIS Online environment. Additionally, Mr. Paton will provide training and set-up of the data collector tool.

Application Developer. After the original Recovery Assessment web application was developed by AEI (led by Mr. Paton), maintenance and support were critical issues, particularly as the application become essential for the recovery assessment effort. This project focuses on the development of a business management plan that provides specific guidance on critical issues for the maintenance and improvement of the application, the implementation of some immediate application upgrades, and monthly support and maintenance effort.

GIS Enterprise Server Designer & Application Developer. The project for the City consisted of two main tasks: 1) ArcGIS installation and setup and 2) Web Application Development. Applied Ecology installed ArcGIS for Server version 10.5.1 ArcGIS Desktop software on the City’s Microsoft Server 2012 and provided the City with a multiuser, versioned Enterprise geodatabase in a Microsoft SQL database for their existing infrastructure (stormwater, sanitary sewer, and reuse). AEI also completed a web application development effort to provide the City with an editable, fully functional application for the City’s internal use. Mr. Paton completed the planning and application development effort of the beta versions of several infrastructure applications to data collection and reporting purposes. These applications are being tested and reviewed by City staff and will be fully launched after additional capabilities are added or modified, in accordance to the client needs. Training is planned by application and user level in the near future and data management and application support will be ongoing.

Model Developer. Lead developer of watershed nutrient input data to incorporate in the circulation and salinity model developed by Florida Tech to allow best muck management decisions. Annual funding from the State Legislative request has allowed subsequent temporal expansions of the original 3.0 SWIL model from 1995 through 2015. In addition, 2016 funding further enhanced the model by expanding the spatial boundary of the original model from Ponce Inlet to Fort Pierce Inlet. SWIL 5.0 further expands the model spatially to include the St. Lucie watershed and temporally to December 2017.

Application Developer & QA Officer. Development of a web application (State of the Indian River Lagoon Application or SIRLAP) to house key water quality and habitat indicators within the Indian River Lagoon. This application enhanced the understanding of the lagoon’s ecological health by providing a visualization tool that interprets key water quality and habitat indicator data. The tool is an easy to use, open access web application which will provide lagoon stakeholders easy access to critical datasets to enhance communication, facilitate scientific inquiry, and guide adaptive management as well as engage and educate the public with lagoon ecological health information. Additionally, an analysis was performed to assess gaps in research and data collection efforts to prioritize future research efforts.

Groundwater Modeler and QA Officer. Applied Ecology worked with Florida Tech to develop a methodology for identifying groundwater sources of nutrients contributing to muck accumulation in Turkey Creek. Applied Ecology, Inc. was responsible for groundwater data collection in four select study sites in the Turkey Creek area to calibrate and refine pollutant load models. Temporary and permanent wells were installed to understand groundwater levels, flows, hydraulic head, and nitrogen concentrations. The groundwater model used field collected data for model calibration and validation.

GIS Developer, QA Officer. Large-scale infrastructure survey project of aboveground utilities, facilities and infrastructure at CCAFS. The survey included water, wastewater, electric, stormwater, gas, fuel systems, buildings, antennas/towers, pavement, among others. Data were acquired using high-accuracy Terrestrial LiDAR and extracted to be incorporated in a custom designed geodatabase. Mr. Paton developed custom tools to allow batch processing of large data imports, quality control data acquisition and guide efficient data collection. The project also included topology consistency checks, manual data processing and mapping to guide field verification efforts.

Model and Toolset Developer. Applied Ecology, Inc. developed a custom model which included an adaptation of the Spatial Watershed Iterative Loading Model (SWIL 3.0). The model was used to look at site specific conditions of basins, land use, soils, and rainfall to determine future retrofit project placement for the City of Titusville. Mr. Paton used the custom developed in-house watershed loading model for the City, to create a toolset for comparing of the proposed input baseloads and removal efficiencies of several BMPs.

Model developer. This project encompassed model both bases predicted pollutant loads using the FDEP’s Pollutant Loading Screening Model (PLSM) and AEI’s SWIL-based prioritization model. Input data from in situ field data collected baseflow and stormwater samples were analyzed and incorporated in the custom watershed loading models, which will allow planning for most effective stormwater treatment within both military bases.

Geodatabase Designer. GIS data development for the city infrastructure and photointerpretation of aerial photography for creation of land use land cover detailed layers for the years of 2000 and 2004. Other GIS data development included soils and stormwater treatment coverages as inputs for modeling. A custom spatial model was developed based on the SWIL to prioritize the City’s outfalls for future retrofit and meeting TMDL targets.

Model Developer. This project encompassed the development of the third version of the SWIL (Spatial Watershed Iterative Loading Model) for the Indian River Lagoon and Banana River. This model version addressed comments provided by FDEP on the previous model versions (SWIL 1.0 and 2.0), improvements in calibration, and reduction in run-time. Additionally, SWIL 3.0 allows users to have more control over input and output data for future modifications and applications. Mr. Paton was the primary model developer for SWIL 3.0 updates.

Quality Assurance Manager. As part of a new watershed model effort led by the SJRWMD, stormwater and baseflow data were collected from 4 sites from the Central to the Northern IRL. This project, funded by the SJRWMD, included collecting event driven water quality data using autosamplers at four sites and calculating annual load data. AEI supported ECT in field data collection, maintenance, and analyses of the Vero Beach field site. Strict SOP in field data collection, equipment decontamination, and reporting were maintained throughout the project.

Geodatabase Designer, QA Officer. The City of Largo wanted to develop a framework for achieving sustainable stormwater management, operations, maintenance, and capital improvement programs. Phase 1 included the development of a stormwater asset inventory (hard and natural assets), condition assessment and state of the system report. Tasks included defining information and data needs, geodatabase development, development of field SOPs, data collection, quality assurance, and reporting. Future capital needs and recommendations for Phase 2 are also critical outcomes of this Phase 1 project.

GIS Analyst and Model Developer. The Malabar Annex, part of the Patrick Air Force Base, was photointerpreted for land use classification (using a minimum of a level 2 FLUCCS codes), ready to be used as input in a spatial watershed loading model. Field validation was performed prior to final product development. In addition, a pollutant loading model custom tool was developed to examine best available treatments for BMAP compliance. Mr. Paton was involved in QA/QC and custom field form development, as well as script custom tool development.
Geodatabase Designer. As part of a comprehensive Water Resources Master Plan for Lowry Park Zoo, AEI was selected to assist with the utility mapping and geodatabase development. Available data, in the form of hardcopy maps, CAD datasets were being analyzed for data gaps and data quality and subsequently converted to a GIS system. Geodatabase development took current and future data collection efforts into account and custom field forms were created to seamlessly complete the utility inventory with minimal in-office data entry effort.

Geodatabase Designer. As part of the implementation of the Consolidated Permit Recovery Assessment Work Plan, to provide a common framework, Tampa Bay Water has committed to develop an internet-based GIS application to facilitate interaction with other agencies. This project took place in two Phases: Phase 1 the geodatabase design and Phase 2 Geodatabase and ArcGIS Online application development, which culminated in an efficient and functional multipurpose custom ArcGIS online map.

GIS Analyst. Responsible to make an assessment of the coverages and methodology used in the PLSM model, develop updated land use, soils, basins and BMP GIS coverages for the City of Cape Canaveral. In addition, a custom GIS toolset was developed to produce watershed loading volumes and loads for the City’s jurisdictional area draining into the Indian River Lagoon.

GIS Analyst and Geodatabase Designer. Citywide stormwater Inventory Assessment, Geospatial Data Conversion, Geodatabase Design and Implementation for the City of Cocoa Beach, FL. Additional tasks included TMDL support and GIS training.

Database Developer and Management. This study of interdisciplinary scientists (UCF, UF & ECT) to determine effectiveness of fertilizer ordinances by determining which, if any, of the ordinances were successful at reducing nitrogen pollution in area waterways. Mr. Paton was responsible for developing and implementing a user-friendly database for complex water quality sampling data, which includes groundwater, surface water, stormwater water data results for several laboratories and field data collection data. Additionally, responsible for the development of custom queries for targeting QA/QC problems, threshold detection, and seamless analyses of large datasets

Model Developer. This project encompassed two Phases: Phase 1 (initial layer development and direct runoff preliminary model) and Phase 2 (baseflow and impoundment modeling and reporting). The combined project has yielded the custom development of a higher resolution spatial and temporal model alternative SWIL (Spatial Watershed Iterative Loading model) as an alternative to the Pollution Load Screening Model (PLSM), based on year 2000 data. Specific tasks included: base layer creation or update (land use, treatments, soils, impoundments), custom coding in VB and Python for the development of a spatial model, stakeholder engagement and revisions, baseflow model development and allocations of baseline loadings among stakeholders.

GIS Analyst. Countywide stormwater Inventory Assessment, Geospatial Data Conversion, Geodatabase Design and Implementation for Brevard County, FL. Specific tasks for this project consisted of spatial and tabular data quality, completeness and accuracy assessment, data conversion, geodatabase design and implementation, and custom ArcPAD forms development. Additional as-needed services have included mobile device selection and training, database support and training.

GIS Analyst and Remote Sensing Analyst. Historical and current photointerpretation of land use changes in the Seffner Canal drainage basin Pemberton Creek Watershed, where the Lake Hooker, an area of concern for the SWFWMD, is embedded. This study included a detailed land use change detection of 2972 acres, from 1938 to 2011. Mapping and reporting of the changes was reported, particularly those surrounding the lakes in a hydration comparison: Long Pond, Lake Weeks, and the potentially impacted one, Lake Hooker.