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.. t- ~ of Paris Study of Lake Crook March, 2001 I 3.0 , POTENTIAL USES OF THE'LAKE 3.1 OBSTACLES TO DEVELOPMENT 3.1.1 Water and Sewer Availability. As discussed in paragraph 2.1.3 Public Utilities, in the section on existing improvements, there are currently no public sewer or \vater utilities anywhere on the lake except at the water treatment plant itself. Since water is pumped into town only when ground storage tanks in Paris dictate it, pumping is intermittent. A pumping station utilizing either variable speed pumps and ground storage facilities or conventional pumps and elevated storage would be required to distribute water to the south, west and north shores of the lake. A large development involving a thousand lots or so would dictate the need for elevated storage for maintaining pressure, .., Sanitary sewer is available only through the use of several lift stations scattered along the shore lines, Because there are at least five sub-drainage areas actually entering the lake on the north shore, it would be necessary to install approximately five separate lift stations to lift se\vage east to the dam where the sewer could gravity flo\v eastward across U.S. 271 to the existing sewer trunk lines. An alternative solution would be to install a pressure system in which each home \vould have a small lift station of its own to lift into a small diameter pressurized main. This would obviate the necessity for manholes or gravity lines throughout the housing development but would require more long term maintenance in monitoring and replacing individual home lift stations, Current TNRCC regulations require the city (or other utility company) to monitor and maintain the individual home lift station units even though they are installed on private property. An imperative in the use of the larger lift stations and gravity mains would be a provision for generators at each lift station to provide alternative power supplies in the event of loss of commercial power. Another concern would be the use of secondary containment around lift stations to contain any sewer overflow before it could reach the lake, Earlier in this report we discussed the special water quality regulations for Lake Crook that dictate I-acre minimum size lots for anyon-site disposal system. The consultant further recommends that no septic fields, lines, or tanks be permitted within three hundred feet of the lake or a stream leading to the lake, The installation of a water distribution network for any residential or commercial development of the shoreline properties should only be allowed with large diameter pipe (6-inch minimum diameter) designed to carry fire flows into the neighborhood. Fire hydrants and valves should also be required in keeping with the city subdivisio~ regulations. 3.1.2 Watershed Management. Lake Crook has largely been replaced by Lake Pat Mayse as a water supply for the city. However, the city does occasionally draw several nùllion gallons of water per day and is permitted up to the equivalent of 10 million gallons per day per year. That fact and the use of the lake as a contact recreation and fishing lake make it imperative that the city impose strict development regulations concerning uses along the shores of the lake. A suggested list of regulations occurs on page 35 of this study. Page 19 of 45