Page 80 - KOP Panborneo Highway Report Card Jan-june 2017
P. 80
environmental monitoring surface water quality - w1
May 2017 June 2017
NWQSM
Parameters Unit
(Class IIB) W1 W1 W1 W1
Upstream Downstream Upstream Downstream
Temperature °C - 28.2 28.2 26.6 26.7
pH - 6.0 – 9.0 6.6 6.5 6.1 5.7
Dissolved Oxygen (DO) mg/l 5 – 7 5.1 5.2 6.8 6.6
Turbidity NTU 50 13 14 180 210
Biochemical Oxygen Demand (BOD) mg/l 3 <1.0 <1.0 1.3 <1.0
Chemical Oxygen Demand (COD) mg/l 25 29 27 16 20
Total Suspended Solids (TSS) mg/l 50 6.4 7.0 141 157
Ammoniacal Nitrogen (A-N) mg/l 0.3 0.67 0.52 0.28 0.49
Oil & Grease mg/l ND 1.4 1.4 1.6 2.5
Heterotrophic Plate Count (HPC) CFU/ml - 2000 180 210 22000
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