EDT Library and Water Quality Analyses Data and Download Page
Last Update: May 22, 2013
These executable self-extracting files* support the submittal of drinking water analytical results. More information is available at the Drinking Water Program's Electronic Data Transfer (EDT) website.
Write-On for Windows 95/98/2000/XP Water Quality Software Upgrade (Version 2.0r) (Zip file, expands to 4.0MB)
— Last Update: September 15, 2011.
This zip file contains WO2SETUP.EXE, ~4.5 MB, the setup file for Write-On for Windows 95/98/2000/XP Water Quality Input System (Version 2.0r). The file can be installed directly into an existing Write-On folder, and the changes will be made automatically. The entire installed Write-On for Windows 95/98/2000/XP software will require ~14.5 Mb of disk space with the Library installation.
- NOTE 1: USE THIS FILE TO INSTALL WRITE-ON ONLY. THE SOURCE AND SYSTEM LIBRARIES ARE NO LONGER INCLUDED WITH THIS INSTALLATION PACKAGE. THE LIBRARIES ARE REQUIRED FOR WRITE-ON TO OPERATE. FOR THE CURRENT LIBRARIES, DOWNLOAD THE FILE BELOW, "Water System and Source Libraries."
Water System and Source Libraries (Zip file, expands to 3MB) — Last Update: May 16, 2013
This zip file contains ALL_LIB.EXE, which is ~759 kB and is a self-extracting compressed file that will expand to ~3 MB. It is to be used with both DOS and Windows versions of Write-On software. It includes large and small water system and source libraries, and an updated laboratory data file, "lab.dat," used by Write-On. Download the file to a temporary directory in your hard disk drive, run it to extract, and see the README file for installation instructions.
List of Water Quality Chemicals and Parameters (Excel)— Last Update: March 5, 2013
This is an MS Excel file (~70 kB) that lists chemicals in Write-On, and includes US EPA STORET numbers or other identifiers, maximum contaminant levels, detection levels for purposes of reporting, and reporting units.
Hardcopy Reporting Forms (Zip) — Last Update: September 15, 2011
This file, FORMS.ZIP, 67 kB, is self-extracting (expanding to 657 kB) and includes the following forms in MS Word: (1) Base Neutral and Acids, (2) Organic Chemical Analysis, (3) Radioactivity Analysis, and (4) General Mineral, Physical & Inorganic Chemical Analyses. NOTE: These forms are for hardcopy submission of water quality data only (prior to the requirement for EDT submittal) and not for the required submittal of data by EDT.
Write-On Library Mover (Zip) — Last Update: March 25, 2003
This zip file contains the Write-On Library Mover (LIBMOVE.EXE) is a utility that assists you in moving updated system and source libraries to your hard disk drive. It is ~15 kB in size. This file saves you the task of having to reenter the sources and systems you created to the new libraries with Library Maintenance. This file was formerly included with the Water System and Source Libraries (ALL_LIB.EXE). Included is a Library Mover.doc 03/25/2003
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*Obtain a copy of these files by clicking on the highlighted text to download a self-extracting version of these files. After successful download, simply double click on the file in your File Manager and the extraction process will be performed.
California Department of Public Health Water Quality Analyses Database Files
It is recommended you use WinZip software program to extract the downloaded water quality data files if you receive an error message using any other program.
The following historical water quality analyses data are available to download and are divided among four .dbf files (Chemical.zip, Chemhist.zip,
Chemarch.zip and Chemxarc.zip), four supporting data files (Siteloc.zip, Watsys.zip, Lab.zip, and Storet.zip), and one Word file that provides explanation:
Drinking water analyses reported directly from laboratories – Last Update May 22, 2013
· CHEMICAL.ZIP contains chemical data from January 1, 2011 through this month
· CHEMHIST.ZIP contains chemical data from January 1, 2006 through December 31, 2010
· CHEMARCH.ZIP contains chemical data from January 1, 2000 through December 31, 2005
· CHEMXARC.ZIP contains chemical data from April 1974 through December 31, 1999
Supporting database files – Last Update May 22, 2013
· Drinking Water Source identification number (PS Code), name and type (SITELOC.DBF)
· Water Systems identification number, name, and address (WATSYS.DBF)
· Laboratories reporting water quality analyses (LAB.DBF)
· Chemical (Storet) Reported (STORET.DBF)
· Word file WQM Documentation.doc provides additional description and explanation of the individual files available for downloading – Last Update March 7, 2013
County Small Water Systems Water Quality Analyses Data Files (CSV files)
-Last Update April 23, 2013
The Excel file “County Small Water Systems Data File Heading Definitions.xls” provides an explanation and description of the Small Water Systems data fields listed below.
The zipped files must be copied to your drive and expanded. After expansion, the .DBF file can be imported into most well know database software programs, such as Microsoft Access, Fox Pro, or Paradox. Note that spreadsheet programs such as Excel are not able to import all of the records in the database and should not be used to prepare reports.
NOTICE TO USERS OF THE DATABASE: Users of this database should use care in interpreting these data. For example, a single detection of a contaminant may not indicate contamination. California Department of Public Health would not consider a single detection of a contaminant, if unconfirmed with a follow-up detection, to be an actual finding. As another example, the presence of a contaminant in raw water at a given concentration does not necessarily mean that the water was served by the water system to its customers, or, if served, that the contaminant was present at that concentration. Water systems may not use certain sources or may treat or blend them prior to service.
Questions about contaminants in particular sources are best addressed by the specific public water system, or by the DHS district office.
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Schedules of Upcoming Monitoring
CDPH's drinking water quality monitoring notification documents identify upcoming required contaminant testing of drinking water for water systems in California. They are updated periodically to reflect changes in the database.
Monitoring Schedules