ENSR ASIA (H.K.) Ltd.
Date of Sample:	10/6/2007		Project:	HK-SWC (Operational Phase)
Parameter \ Composite	1st	2nd	3rd	4th	Water Truck (Reference)
Suspended Solids (mg/L)	11	5	5	3	< 2
Nitrite & Nitrate (mg/L)	1.30	1.66	1.86	1.88	1.65
Total Kjeldahl Nitrogen (mg/L)	0.9	0.5	0.4	0.4	< 0.1
Total Phosphorus (mg/L)	< 0.1	< 0.1	< 0.1	< 0.1	< 0.1
Total Organic Carbon (mg/L)	11	8	5	5	< 1
Chemical Oxygen Demand (mg/L)	40	21	16	15	3
Copper (mg/L)	0.006	0.004	0.004	0.003	0.001
Lead (mg/L)	< 0.01	< 0.01	< 0.01	< 0.01	< 0.01
Zinc (mg/L)	0.11	0.09	0.10	0.09	0.04
Remarks	Nitrite: < 0.01 mg/L Nitrate: 1.30 mg/L	Nitrite: < 0.01 mg/L Nitrate: 1.66 mg/L	Nitrite: < 0.01 mg/L Nitrate: 1.86 mg/L	Nitrite: < 0.01 mg/L Nitrate: 1.88 mg/L	Nitrite: < 0.01 mg/L Nitrate: 1.65 mg/L