Stormwater Chemistry: Principles and Applications to Storm Water Treatment and Management - California State Water Resources Control Board, San Diego, CA

  • September 27, 2016
  • 8:00 AM
  • September 28, 2016
  • 5:00 PM
  • California State Regional Water Quality Control Board, 2375 Northside Drive, Suite 100 San Diego, CA 92108


September 27 - 28, 2016, 8 A.M. to 5 P.M. (2 Days)

California State Water Resources Control Board
2375 Northside Drive, Suite 100

San Diego, California 92108

Note: This is a private class for California State Water Resources Control Board and other Cal EPA staff only. Please register internally. Please email us if you would like us to schedule a public class.


Instructor: Erick McWayne, UC Davis Extension and NEMA


Overview: This practical and engaging course provides a comprehensive overview of stormwater pollution chemistry and its applications to stormwater management and treatment. Topics include an overview of stormwater pollutant classes, sources, characteristics, transport and fate, source control, treatment best management practices (BMPs), BMP performance studies, recent research, and emerging technologies. Other topics include the potential for stormwater to cause groundwater and surface water contamination. Participant course evaluations average 4.8 out of 5 (96%) and often praise the instructor for his knowledge, teaching style, and enthusiasm.


Course Topics

General Stormwater Chemistry
  • Stormwater Chemistry Principles
  • Chemo/Pollutographs
  • Stormwater Monitoring
  • Grab versus Composite Sampling
  • Event Mean Concentrations
  • Pollutant Loads
  • Whole Effluent Toxicity (WET)
  • Managing First Flush
  • Sediment Chemistry
  • Common Pollutant Sources
  • Atmospheric Deposition
  • Contaminant Transport and Fate
  • Metal Pollutant Properties
  • Organic Pollutant Properties
  • Partitioning Coefficients
  • Complexation & Speciation
  • Cation Exchange
  • Redox Potential
  • Acidity (pH)
  • Alkalinity and Hardness
  • Conductivity

Stormwater Pollutant Properties
  • Thermal Pollution
  • Solids (Turbidity, TS, TSS, TDS, and SSC)
  • Nanoparticles
  • Acid/Base Generating Material
  • Metals (Al, Ag, As, Cd, Cr, Cu, Fe, Pb, Hg, Ni, Pb, Se, Sb, and Zn)
  • Salts and Other Minerals
  • Nutrients
  • Oxygen Demanding Pollutants
  • Oil and Grease
  • Antifreeze Glycols
  • Detergents, Soaps and Other Surfactants
• Endocrine Disrupting Chemicals (EDCs)

Stormwater Pollutants (cont.)
    • Persistent Organic Pollutants
  • PAHs
  • PCBs
  • Phthalates
  • Pesticides and Degradates
  • Pathogens

Stormwater Treatment Processes
  • Coagulation/Flocculation
  • Precipitation
  • Sedimentation
  • Flotation
  • Laminar Separation
  • Vortex Separation
  • Screening
  • Filtration
  • Sorption
  • Temperature Reduction
  • Acid/Base Neutralization
  • Volatilization
  • Disinfection
  • Biodegradation
  • Phytodegradation
  • Soil Processes
  • Infiltration


BMP Effectiveness
  • BMP and LID Categories
  • BMP Selection Criteria
  • Performance Assessment
  • International BMP Database
  • Concentration Reduction
  • Load Reduction
  • Efficiency Ratio
  • Summation of Loads
  • Effluent Probability Method
  • Online vs. Offline Facilities
  • Low Impact Development
  • Treatment Trains
  • TAPE Approved BMPs
  • Zero Valent Iron Applications
  • Biochar Applications
  • Engineered Streambeds
  • Permeable Reactive Weirs


Intended Audience: Professionals seeking an improved understanding of stormwater chemistry and its applications. Managers, scientists, field staff, regulators, and engineers working on stormwater and surface water quality projects will benefit from attending.

Education Level: Introductory to intermediate/refresher.

Course Materials: Course proceedings, worksheets, and reference material.


Registration: Please register via the Cal EPA Water Board Training Academy system.

Credit: 15 PDHs and 1.5 CEUs for completing 15 hours of instruction.

About the Instructor: Erick McWayne has twenty-two years of professional experience in water quality management and teaching related courses. As a consultant, he managed contaminated surface water and groundwater projects for the Department of Defense and other clients. He currently provides consulting support to water quality projects and teaches courses in contaminant chemistry, transport and fate, geochemistry, hydrogeology, remediation, stormwater and surface water management, and contaminant attenuation with both the University of California Davis and the National Environmental Management Academy. Between teaching and consulting, Erick develops surface water and stormwater treatment technologies. He holds two patents on permeable reactive weir technology.

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