Coastal & Marine Geology InfoBank

Home FACS Activities Atlas Geology School Related Sites More

USGS CMG InfoBank: Water Quality

Skip navigational links
Dictionaries: Our Mapping Systems   The USGS and Science Education   USGS Fact Sheets   Topics   Keywords   Data Dictionary   Metadata Dictionary   Computer Terminology   Digital Formats  
InfoBank Terms: Activity ID   activity overview   crew   digital data   formal metadata   lines   metadata   NGDC   port stops   project/theme   region   ship   stations   time   virtual globe   year  
Data Types: bathymetry   biological   geochemical   gravity   ground penetrating radar   imaging   LIDAR   logs   magnetics   metering equipment   navigation   samples   seismic   total station   definitions disclaimer  
Data Formats: ARC coverage   E00   FGDC metadata   gridded/image   imaging   material   scattered/swath   Shapefile   vector/polygon  
Comment: 20:39 - 21:47 (01:08)
Source: Annenberg/CPB Resources - Earth Revealed - 21. Groundwater
Keywords: "Jim Goodrich", "Orange County", geologist, "coastal basin", ocean, "sea water", "fresh water", salt, pollution, well, "Water Factory 21", groundwater, "injection barrier", "salt water intrusion"

Our transcription: In addition to ensuring adequate supply, protecting the quality of water is also of utmost importance.
Again, Orange County is an excellent example of how geologists go about doing this.
There are two aspects to water quality that we have to be concerned about.
First of all is we're in a coastal basin, we're next to the ocean.
If we draw the basin down, salt water would flow in to take the fresh water's place and thus severely damage the basin.
The other aspect is pollution.
In the case of saltwater intrusion, we have built injection wells along the coast, and we are either putting imported water in them, or we're putting reclaimed wastewater that's produced at our Water Factory 21.
The Orange County injection wells act as a hydraulic barrier along the coast, which keeps the salt water out even if the level of the groundwater in the basin is drastically lowered.

Geology School Keywords
Skip footer navigational links

Coastal and Marine Science Centers:  Pacific   St. Petersburg   Woods Hole  
InfoBank   Coastal and Marine Geology Program   Geologic Information   Ask-A-Geologist   USGS Disclaimer  

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo logo U.S. Department of the Interior | U.S. Geological Survey
Page Contact Information: InfoBank staff
Page Last Modified: Thu Oct 31 04:27:34 PDT 2013  (chd)