inspecting springs

What are the procedures for inspecting spring tiles/cisterns
for a house supply? How would it differ from checking a well head; other than the obvious cover issues…

TIA,
Tim

Here are some ideas:

http://www.inspect-ny.com/water/WaterCisterns.htm

http://coloradobiomass.org/cs/Satellite?blobcol=urldata&blobheader=application%2Fpdf&blobkey=id&blobtable=MungoBlobs&blobwhere=1167363901303&ssbinary=true

Good info, thx.

Tim