Sample 1 contained the following additional constituents: 400 mg/l chloride, 1.50 mg/l ammonia nitrogen. 1.0 mg/l nitrate nitrogen, 500 μg/l phosphate and 30.0 mg/l silica.
Sample 2 contained the following additional constituents: 200 mg/l chloride, 800 μg/l ammonia nitrogen. 1.0 mg/l nitrate nitrogen. 5.0 mg/l phosphate and 15.0 mg/l silica.
Sample 3 contained the following additional constituents: 10 mg/l chloride, 200 μg/l ammonia nitrogen, 1.0 mg/l nitrate nitrogen, 10.0 mg/l phosphate and 5.0 mg/l silica.