Region 7 Watersheds
Region 7 covers approximately 13,000,000 acres (20,000 square miles) in the southeastern portion of California. It includes all of Imperial County and portions of San Bernardino, Riverside, and San Diego Counties. It is bounded on the east by the Colorado River; to the south by the Republic of Mexico; the west by the Laguna, San Jacinto, and San Bernardino Mountains; and to the north by the New York, Providence, Granite, Old Dad, Bristol, Rodman, and Ord Mountain Ranges.
The Colorado River Basin Region is located in the most arid area of California. Despite the relatively dry climate, the Region contains some substantial surface water bodies, including the Colorado River and the Salton Sea.
Download the Region 7 Factsheet (PDF) and visit the Colorado River Basin Regional Water Quality Control Board Region 7 website for more information about watersheds in this area.
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| Major Water Bodies: |
Colorado River, Salton Sea |
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If you would like to select one of these major water bodies as your collection site, follow these instructions to get the information you will need for the registration form:
- Go to iTouchMap.com.
- If possible, enter the zip code of the area where you are collecting your sample in the "Address" field at the top of the page. If you don't know the zip code, enter the name of the watershed or city and state. Then, click the "Go" button. The comic book bubble will show the latitude and longitude on the map on that same page.
- The first number is the latitude. The second is the longitude. These are the numbers you'll need to enter into the Collection Site Information section of the registration form.
The following is an example screen shot of longitude and latitude results:
If you need assistance in selecting a collection site, please contact us. We'll be happy to help you find a site that's as close to your group' or school's location as possible.
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