Try your local Agricultural center. They test the soil for 7 bucks here and send you an email of your results. You should ask your Ag center horticulturist to explain the results to you.

The University of California does not do soil testing, but does have a list of labs that will. The University of Connecticut will do soil tests for people not living in Connecticut.

http://www.soiltest.uconn.edu/sampling.php

kimmq is kimmsr