| | Water hyacinth threatens Zimbabwe's water supply |
 | | The water hyacinth is concentrated on the eastern side of the lake, around the discharge points for the Harare city council's sewage disposal works, Shamiso Mtisi, a lawyer with the Zimbabwe Environmental Law Association (ZELA) told IRIN. |
 | | According to the "polluter pays principle" of the Water Act, ZINWA can issue permits at a cost to bodies wishing to discharge pollutants into water sources after industrial use, but the polluted water must be recycled and the pollutants reduced to harmless levels before the water is released into waterways. |
 | | Mtisi, the ZELA lawyer, however, said existing waste water treatment facilities were increasingly overloaded and prone to collapse because of ever-increasing volumes of waste generated by a growing urban population. |
| www.scienceinafrica.co.za /2005/april/hararewater.htm (810 words) |