Overview
 

In the eastern two-thirds of Trigg County, more than three-quarters of the drilled wells in uplands are adequate for a domestic supply. Yields as high as 50 gallons per minute have been reported from wells penetrating large solution channels. In the low-lying areas of the Little River and its major tributaries, most wells are inadequate for domestic use, unless they intercept a major solution opening in limestone; in such cases, the yield could be very large. Wells in the uplands of the Land Between the Lakes generally do not yield enough water for domestic use. In the lowlands adjacent to Kentucky and Barkley Lakes, however, three of four wells yield enough for a domestic supply and can sometimes produce more than 5 gallons per minute. Springs with flows ranging from a few gallons per minute to 3,000 gallons per minute are found in the county. Minimum flows generally occur in early fall, maximum flows in late winter.

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