Table 5.1     Water Quality Monitoring Parameters and Frequency

Parameters, unit

Depth

Frequency

�P         Temperature(�XC)

�P         pH(pH unit)

�P         turbidity (NTU)

�P         water depth (m)

�P         salinity (ppt)

�P         DO (mg/L and % of saturation)

�P         SS (mg/L)

�P         Ammonia Nitrogen (NH3-N) (mg NH3-N/L)

�P         Unionized Ammonia (UIA) (mg/L)

�P         Nitrate-nitrogen (NO3-N) (mg NO3--N/L)

�P         Ortho-phosphate (PO4) (mg PO43--P/L)

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

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

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

3 days per week during

construction of channel