ENSR ASIA (H.K.) Ltd.
Date of Sample:	10/13/2007		Project:	HK-SWC (Operational Phase)
Parameter \ Composite	1st	2nd	3rd	4th	Water Truck (Reference)
Suspended Solids (mg/L)	10	5	2	< 2	< 2
Nitrite & Nitrate (mg/L)	2.19	1.86	1.78	1.79	1.52
Total Kjeldahl Nitrogen (mg/L)	1.2	0.9	0.6	0.6	< 0.1
Total Phosphorus (mg/L)	< 0.1	< 0.1	< 0.1	< 0.1	< 0.1
Total Organic Carbon (mg/L)	16	8	6	5	< 1
Chemical Oxygen Demand (mg/L)	51	31	14	12	< 2
Copper (mg/L)	0.040	0.017	0.009	0.007	0.001
Lead (mg/L)	0.01	< 0.01	< 0.01	< 0.01	< 0.01
Zinc (mg/L)	0.13	0.06	0.05	0.05	0.03
Remarks	Nitrite: 0.01 mg/L Nitrate: 2.18 mg/L	Nitrite: < 0.01 mg/L Nitrate: 1.86 mg/L	Nitrite: < 0.01 mg/L Nitrate: 1.78 mg/L	Nitrite: < 0.01 mg/L Nitrate: 1.79 mg/L	Nitrite: < 0.01 mg/L Nitrate: 1.52 mg/L