- USGS Water Resources Applications Software
http://water.usgs.gov/software/
Hydrologic and hydraulic modeling and analysis programs in geochemical, ground water, surface water, and water quality categories. Programs include PHREEQC, NETPATH, MODFLOW, MOC, SUTRA, FEQ, HSPF, GenScn, PeakFq, SWStat, and BLTM.
- Anderson-Hydro
http://www.ahymo.com/
Offers the arid lands hydrology model (AHYMO) program for computing hydrographs and sediment yield in applications such as analysis of storm sewers.
- StormTac
http://www.stormtac.com/
Watershed-based Excel model for quantification of material transport by stormwater and design of stormwater treatment facilities.
- SyTech Inc.
http://www.sytech.com
Offers water and wastewater report generation and data analysis. Products support all major HMI and SCADA applications as well as general connectivity to OPC and OPC-HDA servers.
- Palmyra Group
http://www.palmyragroup.com/
Specializes in process control and monitoring utilizing proprietary software products. Also develops software for membrane separation applications used by membrane and antiscalant manufacturers as well as the United States EPA. A division of PerLorica Inc.
- ECES Group
http://www.ecesgroup.com
Offers environmental engineering software. Products provide steady state simulation of several different wastewater treatment processes.
- RGM HEC2000
http://www.hec1.com/
Offers Windows based interactive graphical interface software for HEC-1, used for storm water, water resources, water quality and flood flow computations.
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