Styx Mill Conservation Reserve - Water Quality 2010-04-26 09:45:00
Surrounding Land Use
Additional Observations?
Major clearance of macrophytes by CCC workers. Water level has dropped substantially - by about 2/3 of original depth (footbridge as reference, as water was only a few cms below underside of bridge, now 20-25cms deep). Silt/sand has also been removed, or has washed down stream by flow, now only at very edges of bank.
Native Tree notes
New plantings of kahikatea and other native plants
Grass condition
Sedge notes
Flax
River bank condition
Weather
Water Measurements
pH
6.51
Water conductivity
100
Water temperature
13.50°C
Clarity Readings
Clarity reading 1
82.00
Clarity reading 2
85.00
Clarity reading 3 (Different Viewer)
83.00
Clarity - Average
83.33
Substrate Measurements %
Sand / Silt / Mud < 2mm
10%
Gravels 2mm - 6cm
60%
Small cobbles 6 - 12cm
20%
Large cobbles 12 - 25 cm
10%
Signs of recent silting?
No evidence of silting seen