Warragamba Storage - Fourth Quarter 2003/2004

WARRAGAMBA DAM (Raw Water) 1 April 2004 to 30 June 2004
		MICROBIOLOGICAL			PHYSICAL / CHEMICAL
		*E. coli*	*Giardia*	*Crypto*	turbidity	dissolved oxygen	True colour	Phosphorus	Nitrogen	Chlorophyll a	Iron	aluminium	Manganese
		Orgs /100mL	cysts /100L	oocysts /100L	(NTU)	(mg/L)	HU	(µg/L)	(µg/L)	(µg/L)	(µg/L)	(µg/L)	(µg/L)
	Reference levels*	**	**	**	**	>6	**	5-50	100-500	2-10	<1000	<100	**
Dam wall DWA 2	No. of results	60	78	78	60	446	60	60	60	35	60	60	60
	Minimum	0	0	0	1.1	0.4	3	3	200	1.3	12	15	2
	Average	-	-	-	1.7	4.7	4	5	241	2.7	39	28	9
	Maximum	4	0	0	3.5	8.9	5	8	320	3.6	90	56	38
Main Arm at the bend DWA 9	No. of results	42	0	0	41	317	42	42	42	36	42	42	42
	Minimum	0	.	.	1.0	0.1	3	3	200	0.9	21	14	2
	Average	-	-	-	2.1	5.3	4	6	236	2.6	38	35	24
	Maximum	2	.	.	4.0	8.9	5	10	310	3.9	74	74	158
Mid lake Cox's Arm DWA 12	No. of results	42	0	0	41	213	42	42	42	33	42	42	42
	Minimum	0	.	.	1.4	0.1	3	3	180	1.0	31	19	4
	Average	-	-	-	2.7	5.2	4	7	230	2.8	81	37	63
	Maximum	1	.	.	9.2	8.6	9	12	290	4.4	512	89	866
Kedumba Arm	No. of results	18	0	0	15	47	18	18	18	24	18	18	18
	Minimum	0	.	.	2.0	7.2	3	12	270	1.1	73	19	11
	Average	-	-	-	3.5	8.4	6	21	337	8.9	174	45	19
	Maximum	70	.	.	6.7	10.3	8	40	470	41.2	349	89	40
Upper Cox's Arm DWA 21 ***	No. of results	0	0	0	0	0	0	0	0	0	0	0	0
	Minimum	.	.	.	.	.	.	.	.	.	.	.	.
	Average	-	-	-	.	.	.	.	.	.	.	.	.
	Maximum	.	.	.	.	.	.	.	.	.	.	.	.
Mid-Lake Wollondilly Arm DWA 27	No. of results	44	0	0	44	252	44	44	44	36	44	44	44
	Minimum	0	.	.	0.9	0.1	4	3	210	1.2	21	13	3
	Average	-	-	-	2.3	5.2	5	7	248	2.6	66	27	83
	Maximum	3	.	.	7.1	8.9	8	11	560	4.4	395	85	878
Upper Wollondilly Arm	No. of results	18	0	0	18	49	18	18	18	24	18	18	18
	Minimum	0	.	.	1.5	7.8	4	7	220	1.8	48	28	5
	Average	-	-	-	3.8	8.6	5	11	264	3.1	107	76	12
	Maximum	2	.	.	8.3	10.1	6	20	340	6.1	233	130	24

* Australian Water Quality Guidelines for Fresh and Marine Waters, ANZECC, 1992.

** no guideline set for Raw Water

*** not sampled this quarter due to shallowness

ANNUAL

WARRAGAMBA DAM (Raw Water) 1 July 2003 to 30 June 2004
		MICROBIOLOGICAL			PHYSICAL / CHEMICAL
		*E. coli*	*Giardia*	*Crypto*	turbidity	dissolved oxygen	True colour	Phosphorus	Nitrogen	Chlorophyll a	Iron	aluminium	Manganese
		Orgs /100mL	cysts /100L	oocysts /100L	(NTU)	(mg/L)	HU	(µg/L)	(µg/L)	(µg/L)	(µg/L)	(µg/L)	(µg/L)
	Reference levels*	**	**	**	**	>6	**	5-50	100-500	2-10	<1000	<100	**
Dam wall DWA 2	No. of results	260	315	315	259	2048	260	260	260	155	260	260	260
	Minimum	0	0	0	0.4	0.1	2	3	170	0.5	10	10	1
	Average	-	-	-	1.2	6.6	4	4	243	2.7	28	18	11
	Maximum	11	2	2	3.5	11.0	6	8	320	6.1	90	56	254
Main Arm at the bend DWA 9	No. of results	202	0	0	193	1563	202	202	202	156	202	202	202
	Minimum	0	.	.	0.5	0.1	3	3	180	0.6	10	10	2
	Average	-	-	-	1.5	6.7	4	5	237	2.4	29	23	23
	Maximum	2	.	.	4.1	10.7	8	10	310	4.9	141	93	735
Mid lake Cox's Arm DWA 12	No. of results	182	0	0	181	981	182	182	182	152	182	182	182
	Minimum	0	.	.	0.6	0.1	2	3	180	0.8	10	10	2
	Average	-	-	-	2.0	6.8	4	6	230	2.5	48	28	27
	Maximum	3	.	.	11.3	12.9	9	15	310	5.0	553	297	866
Kedumba Arm	No. of results	40	0	0	37	71	40	40	40	62	40	40	40
	Minimum	0	.	.	1.0	5.3	3	9	190	0.4	73	19	6
	Average	-	-	-	4.3	8.5	9	20	307	7.1	289	55	22
	Maximum	120	.	.	13.4	11.8	26	42	470	41.2	775	170	62
Upper Cox's Arm DWA 21	No. of results	17	0	0	17	23	17	17	17	33	17	17	17
	Minimum	1	.	.	0.4	7.0	7	6	100	0.1	135	21	8
	Average	-	-	-	4.9	10.2	12	19	261	6.1	458	66	38
	Maximum	67	.	.	11.9	13.3	24	56	460	24.3	896	129	70
Mid-Lake Wollondilly Arm DWA 27	No. of results	211	0	0	210	1146	211	211	211	156	211	211	211
	Minimum	0	.	.	0.5	0.1	2	3	200	1.1	10	10	1
	Average	-	-	-	1.6	6.8	4	5	244	2.6	35	21	26
	Maximum	6	.	.	7.1	10.8	8	11	560	4.7	395	85	878
Upper Wollondilly Arm	No. of results	61	0	0	60	176	61	61	61	87	61	61	61
	Minimum	0	.	.	1.1	7.1	3	6	220	1.8	48	28	5
	Average	-	-	-	5.1	9.2	5	12	285	4.6	144	87	17
	Maximum	36	.	.	12.8	11.5	8	25	370	13.3	483	211	57

* Australian Water Quality Guidelines for Fresh and Marine Waters, ANZECC, 1992.

** no guideline set for Raw Water