William W. Walker, Jr., Ph.D. Environmental Engineer bill@wwwalker.net Concord, Massachusetts Resume Projects Reports Publications Software Major Projects Everglades Reports. prepared for U.S. Department of the Interior & Other Federal Agencies, 1990- P8 Urban Catchment Model, Rainfall/Runoff Si...

Depth Ranges, Hydraulic Load, & Concentration Regimes Calibration Datasets vs. Typical CERP Reservoir Designs 3/4/2005 ...

Storage Reservoir Model A reservoir can be placed upstream of the treatment area to modulate and/or treat inflows from the basin. This algorithm is an alternative to modeling the reservoir as a separate DMSTA case & feeding output to STA directly. A reservoir may be beneficial if STA treatment e...

Phosphorus & Vegetation Gradient in WCA-2A South of S10 Inflow Structures Slides from SFWMD Presentation to FDEP P Criterion Workshop, Sept 2001 Zones Modeled in DMSTA: Mean Distance from Distance South of Levee (km) Transect Sites Levee (km) 0 - 4 Emergent E2, E3, F2 4.5 4 - 8 Emergent ---> Op...

Steady-State Model Applied to DMSTA Calibration Lakes & Other Florida Lakes Model: R = K' / ( K' + Q ) R = reduction in flow-weighted mean concentration (considers atmospheric deposition) Q = hydraulic load (m/yr) K' = net settling rate for steady-state model (m/yr) Residual Lines - predi...