This manual includes all nine of the tests that are commonly included in the Water Quality Index, or WQI. We did so because many schools and organizations like to use the WQI to obtain a value that reflects their stream's quality. The WQI tests (along with the Vernier sensor that is used) include:

(Click on the underlined experiments to download the full version as a PDF file.
You need Adobe Acrobat Reader to read our PDF files.)

Here are some other important features that will make water-quality testing easier than ever!

• Advanced Information for Instructors or Student Research. Teachers or students can find in-depth background information about the specie being measured, as well as helpful hints for performing tests, collecting samples, or preparing standard solutions. In the appendix, you will find directions for downloading data onto your computer, analyzing data in our Graphical Analysis program, and running the all-purpose CHEMBIO data collection program.
• A Complete Resource Manual. Whether you are testing freshwater or saltwater, lakes or streams, you will find the information you need. We include details for locating or purchasing a wide variety of resource texts, internet web sites, and water-quality organizations. Many of these organizations have web sites where students can contribute and compare the results they obtain with students in other regions of the country.
• CD Included with word-processing files and programs. Our CD contains the word-processing files for each of the tests in the manual (in Macintosh ® Word and Word for Windows ® format). We have included these files because we know that teachers like to design laboratory methods according to their own teaching style. A copy of the CHEMBIO program and the popular Vernier resource manual, CBL Made Easy, are also on the CD.
• GPS Methods Provided. Many schools are now using a GPS (Global Positioning System) and GIS data to help identify and track changes in local and regional watersheds. We include information for using this valuable tool.
• Extensive USGS Appendix. U.S. Geological Survey data are documented in our appendix, so your students will be able to compare their results with those found in other parts of the United States. In addition, we provide directions for locating and interpreting USGS data on the internet.

Water Quality with CBL with Microsoft Word files and CHEMBIO program on CD.
(Order Code: WQCBL, $45.00)

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