5 DO mg/l 6.5 6.8 >4 6 NO2- mg/l 0.04 0.02 0.04 7 NO3- mg/l 3.3 3.44 10 8 mg/l 0.18 0.19 0.5 NH4+ 9 mg/l 0.01 0.01 0.3 PO43- 10 mg/l 0.012 0.014 1.5 Zn 11 mg/l 0,002 0,004 0.05 Pb 12 mg/l <0.001 <0.001 0.001 Hg 13 mg/l 0.008 0.01 0.05 As 14 mg/l 0,08 0,07 0.1 Lubricants 15 MPN/100ml 57.7 120.5 7,500 Coliform 16 µg/l 0.002 0.002 Organic Cl Sampling location NM1: Latitude: 18042’35.26’’N; Longitude: 105026’43.25’’E Thanh Khai commune NM2: Latitude: Longitude: 105026’31.26’’E Thanh Yen commune (*) QCVN 08:2008/BTNMT Columm B1: National technical regulations on quality of surface water for irrigation purposes Table 4.2: Result on Ground water quality in subproject area QCVN Result 09:2008/ No Parameter Unit BTNMT (*) NN1 NN2 1 pH - 7.2 7.1 5.5 8.5 2 Hardness 195 182 500 ‰ 3 Total solids mg/l 278 282 1,500 4 NO2- mg/l 0.71 0.73 1.0 5 NO3- mg/l 0.13 0.14 15 6 NH4+ mg/l 2.76 2.31 0.1 7 Cl- mg/l 92 90 250 8 Zn mg/l 0.018 0.017 3 9 Pb mg/l 0.001 0.001 0.01 10 Hg mg/l <0.0002 <0.0002 0.001 11 As mg/l 0.005 0.004 0.05
5 DO mg/l 6.5 6.8 >4 6 NO2- mg/l 0.04 0.02 0.04 7 NO3- mg/l 3.3 3.44 10 8 NH4+ mg/l 0.18 0.19 0.5 9 PO43- mg/l 0.01 0.01 0.3 10 Zn mg/l 0.012 0.014 1.5 11 Pb mg/l 0,002 0,004 0.05 12 Hg mg/l <0.001 <0.001 0.001 13 As mg/l 0.008 0.01 0.05 14 Lubricants mg/l 0,08 0,07 0.1 15 Coliform MPN/100ml 57.7 120.5 7,500 16 Organic Cl µg/l 0.002 0.002 Sampling location NM1: Latitude: 18042’35.26’’N; Longitude: 105026’43.25’’E Thanh Khai commune NM2: Latitude: Longitude: 105026’31.26’’E Thanh Yen commune (*) QCVN 08:2008/BTNMT Columm B1: National technical regulations on quality of surface water for irrigation purposes Table 4.2: Result on Ground water quality in subproject area No Parameter Unit Result QCVN 09:2008/ BTNMT (*) NN1 NN2 1 pH - 7.2 7.1 5.5 8.5 2 Hardness ‰ 195 182 500 3 Total solids mg/l 278 282 1,500 4 NO2- mg/l 0.71 0.73 1.0 5 NO3- mg/l 0.13 0.14 15 6 NH4+ mg/l 2.76 2.31 0.1 7 Cl- mg/l 92 90 250 8 Zn mg/l 0.018 0.017 3 9 Pb mg/l 0.001 0.001 0.01 10 Hg mg/l <0.0002 <0.0002 0.001 11 As mg/l 0.005 0.004 0.05
E29930REVISED00An0Revised0190March.docx