Stormwater Chemistry: Principles and Applications to Storm Water Treatment and Management - CalEPA Office, Riverside, CA

  • June 03, 2014
  • 8:00 AM
  • June 04, 2014
  • 5:00 PM
  • Cal EPA, State Water Resources Control Board, 3737 Main Street, Suite 500, Riverside, California 92501


  • Reduced from $8,600 to $7,800 (-$800) to remain within CalEPA contract.

 June 3 - 4, 2014, 8 A.M. to 5 P.M. (2 Days)
Cal EPA, State Water Resources Control Board
3737 Main Street, Suite 500
Riverside, California 92501

Erick McWayne, NEMA, LLC

Overview: This practical and highly acclaimed 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
 Runoff Characteristics
  • Stormwater and MS4s
  • Dry Weather Base Flows
  • Combined Sewer Overflows
  • Snowmelt
  • Hydrographs
  • Pollutant Sources
  • Atmospheric Deposition
  • Variability Factors
  • Cross-Media Contamination
  • Habitat Degradation

General Stormwater Chemistry
  • Fates of Contaminants
  • Chemistry Basics
  • Pollutant Transport
  • Solubility Rules
  • Organic Pollutant Properties
  • Partitioning Coefficients
  • Metal Pollutant Properties
  • Complexation & Speciation
  • Cation Exchange
  • Use of Redox Potential
  • Acidity (pH)
  • Alkalinity and Hardness
  • Conductivity
  • Chemical Reaction Types
  • Vadose Zone Processes
  • Primary Soil Properties

Pollutant Chemistry
  • Solids (TS, TSS, TDS, SSC)
  • Nanoparticles
  • Metals
  • Salts and Other Minerals
  • Nutrients
  • Oxygen Demanding
  • Oil and Grease
  • Soaps and Other Surfactants
  • Endocrine Disrupting Chemicals (EDCs)
  • Persistent Organic Pollutants
  • PAHs
  • PCBs
  • Phthalates
  • Pesticides and Degradates
  • Pathogens
Stormwater Management
  • Management Approaches
  • Retrofitting Facilities
  • High Risk Chemicals
  • Toxicity Variations
  • Constituent Relationships
  • Composite Sampling
  • Event Mean Concentrations
  • Pollutant Loadings
  • First Flush Management
  • Source Control BMPs
  • Sediment Chemistry
  • Dissolved Oxygen
  • Water Quantity Issues
  • Habitat Preservation
  • Stormwater Monitoring

Stormwater Treatment Processes
  • Sedimentation
  • Flotation
  • Precipitation
  • Coagulation/Flocculation
  • Filtration
  • Sorption
  • Volatilization
  • Biodegradation
  • Phytoremediation
  • Soil Processes Treatment

BMP Effectiveness
  • Performance Monitoring
  • International BMP Database
  • Concentration Reduction
  • Load Reduction
  • Efficiency Ratio
  • Summation of Loads
  • Effluent Probability Method
  • Online vs. Offline Facilities
  • Treatment Trains
  • Emerging Technologies

Surface Water Transport and Fate Processes

Stormwater Infiltration and Groundwater Protection

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

Education Level: Introductory to intermediate/refresher.

ites: A basic understanding of fundamental chemistry is recommended, but all levels will benefit from attending.

Course Materials: Course proceedings and reference material.

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

Registration: Please register internally through the Cal EPA Water Board Academy.

About the Instructor: Erick McWayne has twenty years of environmental chemistry experience and has conducted numerous soil and water quality investigations as well as teaching related courses. As an environmental consultant, Mr. McWayne served as a project manager for water quality investigations at numerous Department of Defense and other contaminated sites. He currently manages NEMA and teaches courses in stormwater chemistry, groundwater chemistry, contaminant transport and fate, and hydrogeology around the country.

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