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Technical Memoranda 5
Hart BT and McGregor RJ
Supervising Scientist, 1982
ISSN 0810-9532
ISBN 0 644 01220 X
Alum treatment of turbid water from Ranger's retention pond No 4 resulted in a significant increase in clarity. A concentration of 30 mg/L alum reduced turbidity from an initial 340 NTU to less than 30 NTU in four hours.