The concentration of total phosphorus, chlorophyll-a turbidity and light penetration for Darwin River and Manton River Reservoirs over the period July 1993 to December 1995 is presented and compared to historical data. The water quality of both reservoirs has varied little compared to the period July 1985 -June 1993. Darwin River Reservoir water quality is generally good, with brief periods of high iron concentrations at the surface (0.2-1 mg/L), mostly during the dry-wet transition and wet season mixing.
Based on off-take iron and manganese data collected since February 1991, there has been no significant change in the concentration of these elements entering Darwin water supply. Nor has there been major changes in the volume of Botryococcus braunii colonies in off-take waters.,
Notes
Date:1996-03. . Water Quality Branch. Water Resources Division,
Made available via the Publications (Legal Deposit) Act 2004 (NT).,
Language
English,
Subject
Water quality -- Northern Territory -- Manton River Reservoir,
Water quality -- Northern Territory -- Darwin River Reservoir,