Otay Watershed
The Otay River watershed encompasses approximately 160 square miles in southwest San Diego County and is one of the three hydrologic units that discharge to San Diego Bay. The watershed consists largely of unincorporated area, but also includes portions of the cities of Chula Vista, Imperial Beach, Coronado, National City, and San Diego. The predominant land uses in the watershed are open space (67%) and urban/ residential (20%).
The major inland hydrologic features, Upper and Lower Otay Lakes, are two water supply reservoirs that also provide important habitat and recreational opportunities. Approximately 36 square miles of the watershed is part of the Multiple Species Conservation Plan effort that provides habitat for a wide range of endangered plant and animal species. Other important conservation areas within the watershed include the San Diego National Wildlife Refuge, the Rancho Jamul Ecological Reserve, and the vernal pool lands in the region.
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| Hydrologic Areas: |
Coronado, Otay Valley, Dulzura
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| Major Water Bodies: |
Upper and Lower Otay Reservoirs, Otay River, San Diego Bay
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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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