| Following
is a list of freeware that provides tools for investigating, sampling, and treating wastewater. To
learn more about a particular item, click on the item name. To
download a software product or visit an interactive web site,
click on "download" or "view," respectively.
But first, please read our disclaimer and
permissions page if you haven't already done so.
Bioassay Quick Reference Table
By California Department of Toxic Substances Control. This guide is the prototype of a project aimed at creating an index of all the standard bioassays currently being used in the scientific community. Initially includes ASTM standards.
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MEASERR (for Data General AViiON)
By US Geological Survey (USGS). A program for determining error in individual discharge measurements. Source code is available.
download
MEASERR (for DOS)
By US Geological Survey (USGS). A program for determining error in individual discharge measurements. Source code is available.
download
MEASERR (for Sun SPARCstation Solaris)
By US Geological Survey (USGS). A program for determining error in individual discharge measurements. Source code is available.
download
MINTEQA2 (for DOS)
By US Environmental Protection Agency, Center for Exposure Assessment Modeling (CEAM). MINTEQA2 is a equilibrium speciation model that can be used to calculate the equilibrium composition of dilute aqueous solutions in the laboratory or in natural aqueous systems. The model is useful for calculating the equilibrium mass distribution among dissolved species, adsorbed species, and multiple solid phases under a variety of conditions including a gas phase with constant partial pressures. A data base is included for solving a broad range of problems without need for additional user-supplied equilibrium constants.
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Principles and Design of Onsite Waste Disposal with Septic Systems
By US Environmental Protection Agency and Purdue University. Teaches the basics of on-site treatment (septic tanks, drainfields, mounds, water conservation, etc.). Main menus include: principles of treatment, design, and siting, soil basics and water conservation
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