Page 82 - KOP Panborneo Highway Report Card Jan-june 2017
P. 82
environmental monitoring surface water quality - w3
May 2017 June 2017
NWQSM
Parameters Unit
(Class IIB) W3 W3 W3 W3
Upstream Downstream Upstream Downstream
Temperature °C - 26.7 26.9 26.4 26.5
pH - 6.0 – 9.0 6.8 6.8 5.6 5.4
Dissolved Oxygen (DO) mg/l 5 – 7 5.2 5.4 6.0 6.0
Turbidity NTU 50 11 8.8 140 230
Biochemical Oxygen Demand (BOD) mg/l 3 <1.0 1.0 <1.0 1.1
Chemical Oxygen Demand (COD) mg/l 25 20 20 19 21
Total Suspended Solids (TSS) mg/l 50 6.2 5.6 103 107
Ammoniacal Nitrogen (A-N) mg/l 0.3 0.56 0.31 0.40 0.20
Oil & Grease mg/l ND 1.4 1.2 1.9 2.1
Heterotrophic Plate Count (HPC) CFU/ml - 2100 210 22000 1400
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