Page 81 - KOP Panborneo Highway Report Card Jan-june 2017
P. 81
environmental monitoring surface water quality - w2
May 2017 June 2017
NWQSM
Parameters Unit
(Class IIB) W2 W2 W2 W2
Upstream Downstream Upstream Downstream
Temperature °C - 26.9 26.9 26.5 26.7
pH - 6.0 – 9.0 7.0 7.0 5.7 5.7
Dissolved Oxygen (DO) mg/l 5 – 7 5.6 5.8 6.2 5.8
Turbidity NTU 50 10 9.4 110 80
Biochemical Oxygen Demand (BOD) mg/l 3 1.3 <1.0 1.2 1.6
Chemical Oxygen Demand (COD) mg/l 25 24 24 24 16
Total Suspended Solids (TSS) mg/l 50 <5.0 6.0 57.5 58.4
Ammoniacal Nitrogen (A-N) mg/l 0.3 0.39 0.54 0.62 0.92
Oil & Grease mg/l ND 1.3 1.3 1.2 2.2
Heterotrophic Plate Count (HPC) CFU/ml - 2000 2000 140 2000
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