 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
 |
  
| ||||||||||||||
 |
 |
 |
 |
 |
 |
||||||||||
national city wellsAt its National City Wells, the Authority obtains fresh water from the San Diego Formation, approximately 800 feet below the surface. Formation water is naturally filtered by the earth, but is disinfected with sodium hypochlorite (a strong bleach solution), and tested to assure that it is safe to drink. |
San Diego Groundwater Formation and Sweetwater Alluvium diagram |
||||||||||||||
 |
|||||||||||||||
