METROPOLITAN ADELAIDE WATER SUPPLY																			
	Five Yearly Statistics  for Customer Taps by Water Treatment Plant System																			
 Data for the Period 1/7/94 - 30/6/99																				
																				
Water Hardness Expression	Units of Measure		ANSTEY HILL SYSTEM			BAROSSA SYSTEM			HAPPY VALLEY SYSTEM			HOPE VALLEY SYSTEM			LITTLE PARA HILL SYSTEM			MYPONGA SYSTEM		
																				
			Minimum	Maximum	Average	Minimum	Maximum	Average	Minimum	Maximum	Average	Minimum	Maximum	Average	Minimum	Maximum	Average	Minimum	Maximum	Average
Total Hardness as CaCO3	(mg/L)		72	176	137	104	173	130	112	188	150	115	194	150	118	207	161	100	166	118
Total Hardness as CaCO3	(mmol/L)		72	176	137	104	173	130	112	188	150	115	194	150	118	207	161	100	166	118
German Degrees 	(odH)		4.0	9.9	7.7	5.8	9.7	7.3	6.3	10.6	8.4	6.4	10.9	8.4	6.6	11.6	9.0	5.6	9.3	6.6
Clark or English Degrees			5.0	12.3	9.6	7.2	12.1	9.1	7.9	13.1	10.5	8.0	13.6	10.5	8.2	14.4	11.2	7.0	11.6	8.3
Grains per Gallon U.K.			5.0	12.3	9.6	7.2	12.1	9.1	7.9	13.1	10.5	8.0	13.6	10.5	8.2	14.4	11.2	7.0	11.6	8.3
Grains per Gallon U.S.			4.2	10.3	8.0	6.1	10.1	7.6	6.6	11.0	8.8	6.7	11.3	8.8	6.9	12.1	9.4	5.9	9.7	6.9
French Degrees			7.2	17.6	13.7	10.4	17.3	13.0	11.2	18.8	15.0	11.5	19.4	15.0	11.8	20.7	16.1	10.0	16.6	11.8