| Following
is a list of freeware that provides information and tools for the design, operation, and maintenance of water and wastewater treatment facilities. 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
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Alternatives for Unsewered Communities
By US Environmental Protection Agency and Purdue University. A guide to to the facilities planning process for small communities. Topics covered include needs documentation, development of alternative solutions and selection of the best response, as well as treatment management and implementation. A section on sludge is included as well.
download
Arsenic Treatment Approaches (PDF)
By US Environmental Protection Agency, Office of Ground Water and Drinking Water. Slides and narrative from one of the presentations delivered in EPA's 2002 Arsenic Rule Training Sessions.
download
Arsenic Treatment Approaches (Powerpoint)
By US Environmental Protection Agency, Office of Ground Water and Drinking Water. Copies of the slides from one of the presentations delivered in EPA's 2002 Arsenic Rule Training Sessions.
download
Arsenic Treatment DVD
By US Environmental Protection Agency, Office of Ground Water and Drinking Water. Contains 6 short videos that showcase the real world application of various arsenic treatment removal technologies. To order a copy of this DVD, call 800-490-9198 and refer to EPA 816-C-05-005.
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Arsenic Treatment Technology Evaluation Handbook for Small Systems
By US Environmental Protection Agency, Office of Ground Water and Drinking Water. A simple guide for selecting an arsenic treatment technology (Adobe PDF format). Contains decision trees that are intended for use as an iterative tool. Users work their way through the trees a number of times, modifying preferences and system-specific circumstances. Note that EPA has slightly modified the trees since publication to reflect changes in regulation and arsenic treatment technologies. For the updated trees, see the listing below for "Updated Arsenic Treatment Interactive Decision Tree Online"
download
Arsenic Virtual Trade Show
By US Environmental Protection Agency, Office of Ground Water and Drinking Water. An online resource to help water systems comply with the Arsenic Rule. Contains brief treatment technology descriptions, interactive decision trees, questions to ask engineers and vendors when choosing a treatment technology, and a searchable vendor database.
visit
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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DOTABLES
By US Geological Survey (USGS). The DOTABLES program generates tables of dissolved oxygen (DO) saturation values and (or) salinity correction factors over ranges of temperature, pressure, and specific conductance.
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Interactive Sampling Guide for Drinking Water System Operators
By US Environmental Protection Agency, Office of Ground Water and Drinking Water. As interactive CD-Rom and web site designed to support the US EPA's public drinking water sustainable infrastructure efforts. The purpose of this guide is to help drinking water system owners and operators better understand the general procedures involved in collecting Safe Drinking Water Act compliance samples. Additional sample shipping suggestions, sample tips, and sample requirements are made available within the body of this interactive guide.
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Livestock Manure Storage
By US Environmental Protection Agency and Purdue University. Looks at livestock manure as a potential ground and surface water pollutant. It explains the factors which affect manure properties, and the effects of water pollution on humans and animals. A questionnaire helps evaluate the risk associated with the user's current practices and suggests solutions. Contains a complete tutorial on manure handling, collection, stabilization through biological treatment, storage systems, land application and other uses, and avoiding hazards.
download
Livestock Manure Storage (online)
By US Environmental Protection Agency and Purdue University. Looks at livestock manure as a potential ground and surface water pollutant. It explains the factors which affect manure properties, and the effects of water pollution on humans and animals. A questionnaire helps evaluate the risk associated with the user's current practices and suggests solutions. Contains a complete tutorial on manure handling, collection, stabilization through biological treatment, storage systems, land application and other uses, and avoiding hazards.
visit
Milking Center Wastewater Treatment
By US Environmental Protection Agency and Purdue University. Explores the special problems posed by milkhouse wastewater, including the design of the milking facility for cleaning management, determining strength and volume of effluent flow, and devising facilities to receive, treat, and safely dispose of the wastewater. A risk assessment questionnaire evaluates the soundness of the user's situation and suggests improvements.
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.
download
Municipal Pollution Prevention Diagnostic Planner (CMAR 2.0)
By US Environmental Protection Agency and Purdue University. Based on the Wisconsin Dept. of Natural Resources' Compliance Maintenance Annual Report, this hypertext-based program serves as an early warning system for wastewater treatment plant operators
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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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River and Stream Water Quality Model (QUAL2K)
By US Environmental Protection Agency, Exposure Assessment Branch. QUAL2K (or Q2K) is a river and stream water quality model that is intended to represent a modernized version of the QUAL2E (or Q2E) model (Brown and Barnwell 1987).
download
Updated Arsenic Treatment Interactive Decision Tree Online
By US Environmental Protection Agency, Office of Ground Water and Drinking Water. Companion document to the "Arsenic Treatment Technology Evaluation Handbook for Small Systems."
visit
VendInfo
By US Environmental Protection Agency, Waste Management and Research Center. Search Vendor Information (VendInfo) for information on more than 400 pollution prevention equipment, products, or services.
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Vulnerability Self Assessment Software Tool (VSAT)
By Association of Metropolitan Sewerage Agencies. Provides a system for water and wastewater utilities seeking to analyze their vulnerability to both intentional threats and natural disasters. VSAT organizes data, supports vulnerability analyses, and documents the analyses for potential utility assets including physical plant, employees, knowledge base, information technology, and customers. Includes reference libraries of both potential threats and countermeasures, and provides a method for managing the information generated by security vulnerability assessments.
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WATER9
By US Environmental Protection Agency, Office of Air Quality Planning and Standards (OAQPS). WATER9 is a Windows based computer program and consists of analytical expressions for estimating air emissions of individual waste constituents in wastewater collection, storage, treatment, and disposal facilities; a database listing many of the organic compounds; and procedures for obtaining reports of constituent fates, including air emissions and treatment effectiveness. WATER9 is a significant upgrade of features previously obtained in the computer programs WATER8, Chem9, and Chemdat8.
download
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