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Water Quality Analysis Simulation Program (WASP)

The Water Quality Analysis Simulation Program. (WASP7), an enhancement of the original WASP (Di Toro et al., 1983; Connolly and

Winfield, 1984; Ambrose, R.B. et al., 1988). This model helps users interpret and predict water quality responses to natural

phenomena and manmade pollution for various pollution management decisions. WASP is a dynamic compartment-modeling

program for aquatic systems, including both the water column and the underlying benthos. WASP allows the user to investigate 1, 2,

and 3 dimensional systems, and a variety of pollutant types. The state variables for the given modules are given in the table below.

The time varying processes of advection, dispersion, point and diffuse mass loading and boundary exchange are represented in the

model. WASP also can be linked with hydrodynamic and sediment transport models that can provide flows, depths velocities,

temperature, salinity and sediment fluxes.

WASP has been used to examine eutrophication of Tampa Bay, FL; phosphorus loading to Lake Okeechobee, FL; eutrophication of

the Neuse River Estuary, NC; eutrophication Coosa River and Reservoirs, AL; PCB pollution of the Great Lakes, eutrophication of

the Potomac Estuary, kepone pollution of the James River Estuary, volatile organic pollution of the Delaware Estuary, and heavy

metal pollution of the Deep River, North Carolina, mercury in the Savannah River, GA.

WASP Preprocessor

The data preprocessor allows for the rapid development of input datasets. The ability to bring data into the model is as simple as cut

and paste or queried from a database. The preprocessor provides detailed descriptions of all model parameters and kinetic

constants. When linking WASP with hydrodynamic models it is as simple as pointing to the hydrodynamic linkage file.

Import time series from WRDB, Spreadsheet, Text Files

Automatically import hydrodynamic model interface information

Multi-session capable

Run time diagnosis

Post Processor

The Post-Processor (MOVEM) provides an efficient method for reviewing model predictions and comparing them with field data for calibration. MOVEM has the ability to display

results from all of the WASP models as well as others. MOVEM allows the modeler to displays the results in two graphical formats:

Spatial Grid . a two dimensional rendition of the model network is displayed in a window where the model network is color shaded based upon the predicted

concentration.

1.

x/y Plots -- generates an x/y line plot of predicted and/or observed model results in a window.2.

http://www.epa.gov/athens/wwqtsc/html/wasp.html

Watershed/Water Quality Technical Support Center WASP Page, US EPA | Ecosystems Research... http://www.epa.gov/athens/wwqtsc/html/wasp.html

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There is no limit on the number of x/y plots, spatial grids or even model result files the user can utilize in a session. Separate windows are created for each spatial grid or x/y

plot created by the user.

WASP Model Information

Current Version 7.5

Release Date October 19, 2011

Operating System Windows 95/98/ME/2000/XP

Intended Audience Environmental Engineers/Scientists, Regulatory Agencies

Key Words aquatic biology, assessment, compliance, discharge, environmental

effects, hydrology, metals, NPS related, NPDES, point source(s),

surface water, test/analysis, TMDL related

Media Surface Water

Pollutant Types Conventional Pollutants (Nitrogen, Phosphorus, Dissolved Oxygen,

BOD, Sediment Oxygen Demand, Algae, Periphyton), Organic

Chemicals, Metals, Mercury, Pathogens, Temperature

File Download Information

File Type/Priority Filename/Format/Size File Description

Install/Required SETUP_WASP7_5.exe -- Self

Extracting Zip File 17.9 MB

This file contains the WASP Model including

the data preprocessor, the kinetic models,

graphical post processor, and model

documentation. User is encouraged to

download the example input files. This file also

contains example input files to test model

installation. The purpose of these files is for

the user to acquaint themselves with the model

and test execution. They do not represent a

calibrated real world example.

Watershed/Water Quality Technical Support Center WASP Page, US EPA | Ecosystems Research... http://www.epa.gov/athens/wwqtsc/html/wasp.html

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WCMS

Last updated on Wednesday, November 30, 2011

Optional WASP 7.x Course This page contains the materials used during

EPA Sponsored WASP Workshops. It includes

Power Point presentations used for lectures,

TMDL example datasets, utility programs and

other materials.

Optional WASP Fact Sheet -- (PDF, 2 pp.,

666 KB, about PDF)

This file contains a Fact Sheet about the WASP

Modeling System in PDF Format.

Watershed/Water Quality Technical Support Center WASP Page, US EPA | Ecosystems Research... http://www.epa.gov/athens/wwqtsc/html/wasp.html

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