Water Contaminant
                          Information  Tool
         A Versatile and Secure Tool for the Water Sector
         The U.S. Environmental Protection Agency (EPA) is committed to ensuring the safety of the
         nation's water supply. A key part of EPA's commitment is protecting drinking water and wastewater
         systems from the effects of intentional or accidental contamination. WCIT  the Water Contaminant
         Information Tool  is a powerful new information resource for water utilities, public health officials,
         and agencies responsible for the safety of water supplies. Along with other EPA efforts such as early
         warning detection systems, WCIT is a major element of EPA's support of water utility incident
         prevention and detection capability.

         Introduced in late 2005, WCIT is a password-protected online database that currently contains
         information on 93 contaminants of concern:  chemical, biological, and radiological substances that pose a
         serious threat if introduced into drinking water or wastewater systems.

         WCIT's functionality, and the data in it, were shaped and validated by water utility professionals,
         scientists, and public health experts. EPA established a User Workgroup, consisting primarily of water
         utility representatives, to provide guidance on WCIT's content design and functionality.  A WCIT
         Expert Workgroup, including authorities on chemical and pathogen properties, fate and transport,
         contaminant monitoring, and health effects, reviewed all technical information and continues to provide
         feedback on current and planned WCIT data. Unlike other resources or databases, WCIT supports
         water-specific data (not just general data on environmental contamination). Moreover, WCIT covers
         both regulated and non-regulated contaminants, including data on many substances  such as chemical
         warfare agents  for which information is not readily available.
         Supports Planning, Response, Training, and Research
         WCIT supports preparedness planning, incident response, response training, and contaminant research:
         Planning - WCIT provides in-depth information needed to update and maintain Emergency Response
         Plans. WCIT supports development of site-specific response guidelines and can aid utilities in making
         decisions about facility infrastructure during planning for system expansions or upgrades.
         Response  For incident response, WCIT provides quick access to vital information, including
         drinking water and wastewater treatment recommendations and drinking water and wastewater
         infrastructure decontamination processes. WCIT includes easy access to reports that summarize useful
         information that can be used to communicate with the public and with the news media.
         Training  WCIT is a highly practical tool for table-top drills and emergency exercises needed
         to ensure readiness. For example, federal authorities have used WCIT as part of disaster planning
         exercises. The depth of information in WCIT makes it an ideal resource for formal or informal
         training programs.
         Research  WCIT supports gap analysis efforts cataloging research in areas such as infrastructure
                            Water Contaminant Information Tool (WCIT)
 Analytical and
 screening procedures
 Wate r/wa ste wate r
treatment data
 Emergency Response Plans
Water Security Division
                          Office of Water  EPA817-F-07-001  www.epa.gov/watersecurity  February 2007

WSD  Water Contaminant Information Tool
 Detailed Contaminant Information Listed
 For each contaminant, WCIT contains detailed information describing the substance, its
 behavior in water, and potential health effects. WCIT information includes:
    Name, Chemical Abstracts Service (CAS) ID
    Physical or pathogen properties
    Fate and transport
    Medical and toxicity information
    Early warning indicators
    Field detection and analysis information
    Drinking water and wastewater treatment
    Environmental impacts
    Infrastructure decontamination

 Up to  Date
 Over time, EPA will add new contaminants and data fields to WCIT as EPA and its water
 sector partners identify additional needs or data sources. EPA is committed to keeping
 the data in WCIT up to date as new research is published.  For example, in late 2006,
 EPA added 45 new contaminants of concern to WCIT, as well as information on drinking
 water and wastewater treatment and infrastructure decontamination.

 Intended Users
 WCIT contaminant data are considered sensitive, so EPA restricts access to the tool to
 individuals in the water sector. Eligible organizations include:
    Drinking water and wastewater utilities
    State drinking water primacy agencies (and their regional and local agencies)
    Drinking water and wastewater associations partnering with EPA
    State and local public health officials
    Federal officials (including government laboratory staff)
    State laboratories
                                                  How to Register for WCIT
                                                  Registering to use WCIT is easy and free. To apply for
                                                  access to WCIT, visit http://www.epa.gov/wcit or

                                                  For More Information
                                                  For more information on WCIT, visit www.epa.gov/wcit
                                                  or contact the WCIT Help Desk at WCIT@csc.com.

                                                  Information on EPA's Water Security Division and WSD
                                                  activities, tools, products, and the latest scientific advances
                                                  to protect drinking water and wastewater utilities is
                                                  available online at www.epa.gov/watersecurity.
                     Office of Water   EPA817-F-07-001  www.epa.gov/watersecurity  February 2007