San Juan Watershed

Hydrologic Areas:

Laguna, Mission Viejo, San Clemente, San Mateo Canyon, San Onofre

Major Water Bodies:

Orange County: Aliso Creek, San Juan Creek, Dana Point Harbor

San Diego County: San Mateo Creek, San Onofre Creek, Las Flores Creek

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:

Copy the name of the water body (e.g., San Marcos Creek).
Go to www.topozone.com and paste the water body name in the place name field.
Select CA and click the Search button. The results will look similar to the screenshot below:
The information you will need to write down or copy from the results are:
- Type: the water body type.
- USGS Quad: the Nearest City field on the registration form.
- Lat: the latitude.
- Lon: the longitude.
Enter the information into the Collection Site Information section of the registration form.

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.