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Lakes and Reservoirs
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Last Modified:  1/17/2006
Lakes and Reservoirs
Photo of Lake
Section 314 of the Clean Water Act (1987) requires Kentucky to submit a lake water quality assessment as part of the biennial 305(b) Report to Congress. The state of Kentucky has identified and classified 107 lakes in the state to be important recreationally (fishing and boating) to the public.  These 107 lakes are sampled three times per year during the growing season (May - October) on a five-year rotating sampling schedule by Basin Management Unit (BMU). This rotating sampling schedule is used to determine eutrophication trends and whether or not each lake meets its use support.  Eutrophication trends are determined by Trophic State Index (TSI) which is driven by chlorophyll-a measurements.  Phosphorus and nitrogen series samples are also analyzed and used to determine productivity trends of increasing or decreasing availability of these nutrients for algal growth.  A vertical profile of the lake is sampled at one meter intervals for dissolved oxygen, temperature, conductivity  and pH using a multi-parameter field meter. Lakes that do not meet criteria for use support are placed on the 303(d) list.
DEP Division of Water
14 Reilly Road
Frankfort, KY 40601
Phone: 502-564-3410
Fax: 502-564-0111
E-mail: water@ky.gov
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