Table 1: Flow measurements collected in 1981-1982 1981-1982 Flow rate (m3/sec) T water (?C) Acquarossa (m^3/sec) Guzzarella (m^3/sec) August 0.434 21 0.383 0.03 September 0.631 16.5 0.288 0.03 October 0.66 16 0.263 0.063 November 0.53 10.5 0.4 0.076 December 0.978 10 0.395 0.134 January 1.476 7.9 0.365 0.126 February 0.934 6 0.395 0.19 March 1.173 6.5 0.345 0.14 April 0.728 15 0.42 0.146 May 0.68 17 0.351 0.091 June 0.554 21.5 0.387 0.065 July 0.358 22 0.488 0.031 M.V 0.761 0.373 0.094