Table 5.1 Water Quality Monitoring Parameters and Frequency

Parameters, unit	Depth	Frequency
· Temperature(°C) · pH(pH unit) · turbidity (NTU) · water depth (m) · salinity (ppt) · DO (mg/L and % of saturation) · SS (mg/L) · Ammonia Nitrogen (NH₃-N) (mg NH₃-N/L) · Unionized Ammonia (UIA) (mg/L) · Nitrate-nitrogen (NO₃-N) (mg NO₃^--N/L) · Ortho-phosphate (PO₄) (mg PO₄^3--P/L)	· 3 water depths: 1m below water surface, mid-depth and 1m above river bed. · If the water depth was less than 3m, mid-depth sampling only. · If water depth was less than 6m, mid-depth may be omitted.	3 days per week during construction of channel

Parameters, unit

Depth

Frequency

· Temperature(°C)

· pH(pH unit)

· turbidity (NTU)

· water depth (m)

· salinity (ppt)

· DO (mg/L and % of saturation)

· SS (mg/L)

· Ammonia Nitrogen (NH₃-N) (mg NH₃-N/L)

· Unionized Ammonia (UIA) (mg/L)

· Nitrate-nitrogen (NO₃-N) (mg NO₃^--N/L)

· Ortho-phosphate (PO₄) (mg PO₄^3--P/L)

· 3 water depths: 1m below water surface, mid-depth and 1m above river bed.

· If the water depth was less than 3m, mid-depth sampling only.

· If water depth was less than 6m, mid-depth may be omitted.

3 days per week during

construction of channel