| Following
is a list of freeware that provides information and tools for the design, operation, and maintenance of water and wastewater distribution structures. 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.
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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.
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HEC-GeoHMS
By US Army Corps of Engineers. The Geospatial Hydrologic Modeling Extension (HEC-GeoHMS) is a software package for use with the ArcView Geographic Information System. GeoHMS uses ArcView and Spatial Analyst to develop a number of hydrologic modelng inputs. Analyzing digital terrain information, HEC-GeoHMS transforms the drainage paths and watershed boundaries into a hydrologic data structure that represents the watershed response to precipitation. In addition to the hydrologic data structure, capabilities include the development of: grid-based data for linear quasi-distributed runoff transformation (ModClark), the HEC-HMS basin model, physical watershed and stream characteristics, and background map file.
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HEC-GeoRAS for ArcGIS 9
By US Army Corps of Engineers. HEC-GeoRAS for ArcGIS 9 is a package of ArcGIS 9 macros specifically designed to view and manipulate geospatial data for use in the Hydrologic Engineering Center's River Analysis System (HEC-RAS). The graphical user interface allows users with minimal GIS experience to create a HEC-RAS import file containing geometric attribute data from an existing digital terrain model (DTM). Water surface profile data exported from HEC-RAS simulations may also be viewed using HEC-GeoRAS. The HEC-GeoRAS macros are written in the arc macro language (AML) and require the ArcInfo program with the TIN extension.
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HEC-GeoRAS for ArcInfo (Unix)
By US Army Corps of Engineers. HEC-GeoRAS for ArcInfo is a package of ArcInfo macros specifically designed to view and manipulate geospatial data for use in the Hydrologic Engineering Center's River Analysis System (HEC-RAS). The graphical user interface allows users with minimal GIS experience to create a HEC-RAS import file containing geometric attribute data from an existing digital terrain model (DTM). Water surface profile data exported from HEC-RAS simulations may also be viewed using HEC-GeoRAS. The HEC-GeoRAS macros are written in the arc macro language (AML) and require the ArcInfo program with the TIN extension.
download
HEC-GeoRAS for ArcInfo (Windows)
By US Army Corps of Engineers. HEC-GeoRAS for ArcInfo is a package of ArcInfo macros specifically designed to view and manipulate geospatial data for use in the Hydrologic Engineering Center's River Analysis System (HEC-RAS). The graphical user interface allows users with minimal GIS experience to create a HEC-RAS import file containing geometric attribute data from an existing digital terrain model (DTM). Water surface profile data exported from HEC-RAS simulations may also be viewed using HEC-GeoRAS. The HEC-GeoRAS macros are written in the arc macro language (AML) and require the ArcInfo program with the TIN extension.
download
HEC-GeoRAS for ArcView
By US Army Corps of Engineers. The Hydrologic Engineering Centers River Analysis System (HEC-RAS) allows you to perform one-dimensional steady and unsteady flow calculations. HEC-GeoRAS is an ArcView GIS extension that provides the user with a set of procedures, tools, and utilities for the preparation of GIS data for import into HEC-RAS and generation of GIS data from RAS output.
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HEC-HMS
By US Army Corps of Engineers. The Hydrologic Modeling System (HMS) is designed to simulate the precipitation-runoff processes of dendritic watershed systems. It is designed to be applicable in a wide range of geographic areas for solving the widest possible range of problems. This includes large river basin water supply and flood hydrology, and small urban or natural watershed runoff. Hydrographs produced by the program are used directly or in conjunction with other software for studies of water availability, urban drainage, flow forecasting, future urbanization impact, reservoir spillway design, flood damage reduction, floodplain regulation, and systems operation.
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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.
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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
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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Private Water Systems
By US Environmental Protection Agency and Purdue University. Minicourse in design and construction of private drinking water systems (wells and piping). Menu items include water quantities required, water pumps, systems controls, design considerations and piping.
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Private Water Systems (download)
By US Environmental Protection Agency and Purdue University. Minicourse in design and construction of private drinking water systems (wells and piping). Menu items include water quantities required, water pumps, systems controls, design considerations and piping.
download
Private Water Systems (in Spanish)
By US Environmental Protection Agency and Purdue University. Sistemas de Agua Potable Privada. Este programa tiene la intencion de proporcionar informacion acerca de sistemas privados pequenos de suministro de agua potable.
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Residential Water Conservation Techniques
By US Environmental Protection Agency and Purdue University. Shows effective ways to save water inside and outside the house. Topics include efficient toilets, showerheads, faucets; leak detection, water efficient lawn care and gardening; car washing and pool operation. Save amazing amounts of money while protecting the environment! The expert system feature allows users to calculate how much they will save by installing water efficient devices in their homes. Useful for everyone from the general public to utility managers.
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Residential Water Conservation Techniques (Spanish version)
By US Environmental Protection Agency and Purdue University. Tecnicas para la Conservacion de Agua Residencial. Este programa tiene la intencion de proporcionar informacion acerca de la conservacion de agua adentro y alrededor de la casa.
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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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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.
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Wellhead Protection
By US Environmental Protection Agency and Purdue University. Explains protection of public water supplies as presented in the US Safe Drinking Water Act Amendments of 1986. General concepts reviewed include building a planning team, delineating a wellhead protection area, conducting a contaminant source inventory, managing potential contaminant sources, and planning for the future. It is intended for local/Tribal officials, water supply managers and interested groups or citizens whose community relies on ground water for its public water supply. Many of the concepts presented in this software may also be useful for protecting private wells.
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