Dam Committee Report
Dave Taylor Visit, Oct 6, 2007
Dave Taylor (Strata Services) visited the Lake Tishomingo dam on Oct 6, 2007 and met with members of the LTPOA Board and the Dam Committee
Dave Taylor (DT) has 40 years experience working on leaking lakes. Local area lakes he has worked on include: Lorraine, Sherwood, Raintree II, Wauwanoka, Coke’s Lake, Marshall’s Lake (Dittmer), Carol (IL), an unnamed lake near Washington Mo, and an unnamed lake near Morse Mill. Dave is currently working on Lake Loraine and Lake Sherwood. 
The project will consist of three phases:
•	An exploration phase consisting of drilling eleven test holes thru the top of the dam 
•	An analysis phase to determine where to grout
•	A grouting phase
In terms of Dave’s schedule, preliminary work will begin in the fall of 2007. Drilling will begin in spring 2008.
Once he starts to drill holes he should be able to finish the whole job in one to two months. 
Dave said he will put together a letter of intent for the LTPOA Board to approve.
In terms of cost, Dave thought that the work involved in writing procedures, obtaining permits, drilling the exploratory holes, and analyzing the results are so involved that the cost would be close to $50,000. The cost of grouting cannot be predicted until the analysis phase is complete since the cost is dependent on the size of the opening in the rock. The total cost may be up to $100,000. Dave said he thought it would be less, but could not predict that at this time. 
The letter of intent will contain a lump sum cost for the exploratory drilling phase and the analysis phase. There would be no surprises as to cost for the initial two phases of the project. 
When asked if the leak will be shut off completely, Dave said, “I won’t know until I do it.” The lake he worked on recently near Washington MO was shut off 100 percent. When the lake was full it was flowing 500 GPM. [Our leak is currently at 300 GPM] What makes the difference is if the leak is all in one spot, you’ll get 100 percent shut off. If the leak is diffused, then you might not get it completely shut off. I won’t know if the leak can be shut off completely until I do it.
When asked if we don’t do anything in the next 18 to 24 months are we likely to lose the dam, Dave said, “No, that won’t happen.”
•	Rich Hirsch for the Dam Committee