On Thu, 16 Apr 2015 10:36:56 -0700 (PDT), trader_4
wrote:

They did not a temp difference 10degree at 70/60. That is the only notation on the invoice except for the needs recharge est $12 service $50 per lb. Recommend evoc- leak check and recharge.

I think most of us are still curious as to whether you had an
actual problem that lead to this checkup or was it working?
I would think with 8 pounds of R22 missing, it likely would
either not run or have an obvious problem. You didn't say
how many tons, but 8 pounds sounds like it could be all of it
for a typical residential system.

OP wrote: "...(we live in California and the temperature is rarely
boiling so we rarely use it)."

Much of residential northern California have no AC units.