Taal Lake Taal Lake Taal Lake, formerly known as Bombón Lake, is a freshwater lake in the province of Batangas, on the island of Luzon in the Philippines. The lake fills Taal Caldera, a large volcanic caldera formed by very large eruptions between 500,000 and 100,000 years ago. It is the country's third largest lake after Laguna de Bay and Lake Lanao. Volcano Island, the location of Taal Volcano's historical eruptions and responsible for the lake's sulfuric content, lies near the center of the lake. There is a crater lake on Volcano Island. Known as the Yellow Lake or the Main Crater
Laguna de Bay or industrial According to DENR (1997), domestic and industrial wastes contribute almost equally at 30% each. Meanwhile, agricultural wastes take up the remaining 40%. In a recent sensitivity waste load model ran by the Laguna Lake Development Authority's (LLDA) Integrated Water Resources Management (IWRM) division, it revealed that 70% of biochemical oxygen demand (BOD) loadings came from households, 19% from industries, and 11% came from land run-off or erosion (LLDA, 2005). As far as industries and factories are concerned, there are about 1,481 and increase is expected. Of the said figure, about 695 have wastewater treatment facilities. Despite this, the