Source Loading and Management Model (SLAMM)An Urban Area Nonpoint Source Water Quality Modelupdated July 2008 - Version 9.2 and 9.3  The
Source Loading and Management Model (SLAMM) was originally developed to better
understand the relationships between sources of urban runoff pollutants and runoff
quality. It has been continually expanded since the late 1970s and now includes
a wide variety of source area and outfall control practices (infiltration practices,
wet detention ponds, porous pavement, street cleaning, catchbasin cleaning, and
grass swales). SLAMM is strongly based on actual field observations, with minimal
reliance on theoretical processes that have not been adequately documented or
confirmed in the field. SLAMM is mostly used as a planning tool, to better understand
sources of urban runoff pollutants and their control. Special emphasis has been
placed on small storm hydrology and particulate washoff in SLAMM. Many currently
available urban runoff models have their roots in drainage design where the emphasis
is with very large and rare rains. In contrast, stormwater quality problems are
mostly associated with common and relatively small rains. The assumptions and
simplifications that are legitimately used with drainage design models are not
appropriate for water quality models. SLAMM therefore incorporates unique process
descriptions to more accurately predict the sources of runoff pollutants and
flows for the storms of most interest in stormwater quality analyses. However,
SLAMM can be effectively used in conjunction with drainage design models to incorporate
the mutual benefits of water quality controls on drainage design. SLAMM has been
used in many areas of North America and has been shown to accurately predict
stormwater flows and pollutant characteristics for a broad range of rains, development
characteristics, and control practices. As with all stormwater models, SLAMM
needs to be accurately calibrated and then tested (verified) as part of any local
stormwater management effort.
Description of All Parameter Files (Readme
document) Description of Parameter Files, by Version: Version 9.2 and 9.3 Download PARAMETERS FILES and STANDARD LAND USE FILES for: VERSION 9.2 and 9.3- PARAMETER FILES - 9.2 and 9.3 STANDARD LAND USE FILES Information on the latest version of SLAMM model The SLAMM program is copyright 1997, John Voorhees and Bob Pitt. For technical help relating to the SLAMM model, please contact: Judy Horwatich - jahorwat@usgs.gov, Bob Pitt - rpitt@winslamm.com, John Voorhees - jvoorhees@winslamm.com, or Caroline Burger - cburger@winslamm.com. |
U.S. Department of the Interior |
U.S. Geological Survey
URL: http://wi.water.usgs.gov/slamm/
Page Contact Information: webmaster@wi.water.usgs.gov
Page Last Modified:
July 1, 2008 2:34 PM
