Stormwater

DOF staff has over 11 years of experience dealing with stormwater compliance and design. Our expertise include NPDES permitting and treatment, SWPPP development and revisions, environmental sampling and training, working with regulators.

Industrial Stormwater Compliance Support

  • NPDES permitting
  • EPA – MSGP
  • WA – ISGP, CSGP
  • OR – 1200 series
  • Site inspections
  • Stormwater sampling
  • Staff and management training
  • BMP compliance
  • Internal audits
  • Document management
  • Regulatory negotiations
  • Regulatory litigation and third party lawsuit support

Design and Optimization of Best Management Practices

  • Finding the “low hanging fruit!”
  • Ecology TAPE Program
  • Green stormwater infrastructure
  • Infiltration galleries
  • Bioswales
  • Planter boxes
  • Operational source control BMPs
  • Structural BMPs
  • Zinc and copper coverage
  • Minimization of solids mobilization
  • Advanced treatment BMPs
  • Amended sand filters
  • Coagulation/flocculation
  • Clarification
  • Polymers

Stormwater Treatment Design, Construction Management, Operations and Maintenance

  • Source evaluation (including offsite sources and air deposition studies)
  • Bench Scale Studies
  • Vendor Selection, Contract Documents, Cost Estimates, Schedules
  • Engineering Design Reports
  • Hydrologic Modeling
  • Construction Oversight and Management
  • Stormwater Treatment Systems Operation, Maintenance, and Optimization
  • O&M Plans
  • Sampling Plans