BigMac :

Local Co-ops will provide ag lime and put it in the pond by spreader truck. It must be dry around the pond edge. These are dump type trucks with a spreader on the back. They disperse in a half circle about 50 ft out into the pond. If you can get to about 6 different locations around the pond and have the truck disperse you should be ok. It takes time for the max alka. to be obtained. With the numbers you provided you will likely need 2 tons per acre to start with. You can have it hired out and they will put it in by barge. Have you had the pond soil tested for this. Here is the Texas link.


Texas
Texas A&M Soil, Water, and Forage Testing Laboratory
345 Heep Center, College Station, TX 77843
(979) 845-4816
http://soiltesting.tamu.edu/webpages/maps.html
Soil test cost: $10.
Includes: pH, N, P, K, Ca, Mg, salinity, Na and S.
To submit sample: Mail to above address.
Common regional problems: None to report.