1. Anon. 1998. “Determination of Thermotolerant Coliforms and Helminth Eggs in Waste and Wastewaters.” InStandard Methods for the Examination of Waste and Wastewaters, edited by A.E. Greenberg, L.S. Clesceri, and A.D. Eaton, 20th ed. 63–69. Washington DC: America Public Health Association (APHA) – American Water Works Association (AWWA) – Water Environmental Federation (WEF).