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National Water Account 2019

Adelaide: Statement of Water Flows

for the year ended 30 June 2019

The volume of water in the region's storages at the end of 2018–19 was similar to last year.
The negligible change in water store volume follows a relatively large decrease in storage last year.

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The Statement of Water Flows is provided below and presents the actual water flows associated with the region's water stores during the year, including flows corresponding to the accrual transactions shown in the Statement of Changes in Water Assets and Water Liabilities.

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	2019 ML	2018 ML	2017 ML	2016 ML	2015 ML	2014 ML
Water inflows
Surface water inflows	351,148	413,790	934,069	391,805	382,364	568,479
Precipitation	8,558	12,015	14,381	7,329	7,096	11,209
Runoff	92,899	200,858	810,773	170,411	237,520	448,723
Discharge: groundwater*	73,921	73,921	73,921	73,921	73,921	74,012
Flood return	18,158	55,928	–	–	–	–
Delivery: inter-region agreement	157,612	71,068	34,994	140,144	63,827	32,149
Discharge: wastewater	–	–	–	–	–	**2,386

Groundwater inflows	109,277	93,825	125,638	121,144	432,444	544,923
Inter-region inflow	228	53	60	20	27	21
Inter-region coastal inflow	1,485	1,353	1,085	1,300	1,603	1,624
Recharge: landscape	103,665	76,966	109,055	100,839	408,445	526,777
Leakage: farm dams	–	–	–	–	888	1,131
Leakage: urban*	2,162	11,941	14,130	15,456	18,085	15,309
Managed aquifer recharge: individual users	1,487	3,215	964	3,205	3,186	–
Managed aquifer recharge: urban*	250	297	344	324	210	61

Urban water system inflows	284,793	262,380	254,829	252,441	249,813	249,235
Non-allocated diversion: surface water*	135,719	51,339	15,478	128,010	56,943	**26,626
Allocated diversion: surface water*	31,781	105,970	128,100	21,108	78,200	66,099
Wastewater collected	112,392	100,803	107,139	95,637	**91,945	95,560
Delivery: desalinated water	4,901	4,268	4,112	7,686	22,725	60,950

Irrigation scheme inflows	37,078	35,943	20,892	30,881	29,101	25,576
Delivery: recycled water*	25,205	20,392	14,441	21,194	21,024	18,684
Delivery: inter-region agreement	11,051	4,801	5,683	8,779	7,283	6,221
Other increases	622	10,550	568	598	584	610
Non-allocated extraction: groundwater*	200	200	200	310	210	61

Total water inflows	782,296	805,938	1,335,428	796,271	1,093,722	1,388,213
Water outflows
Surface water outflows	314,921	434,977	627,079	238,803	269,156	285,418
Evaporation	19,327	21,672	19,488	15,705	24,651	16,954
Outflow	96,985	186,053	459,018	70,010	106,422	166,640
Other statutory rights	–	–	–	–	–	1,738
Overbank flow	27,379	66,603	–	–	–	–
Other decreases	–	–	–	–	–	6,415
Allocated diversion: individual users	3,730	3,340	4,995	3,970	2,940	946
Non-allocated diversion: urban system*	135,719	51,339	15,478	128,010	**56,943	**26,626
Allocated diversion: urban system*	31,781	105,970	128,100	21,108	78,200	66,099

Groundwater outflows	142,801	137,870	116,628	132,689	461,859	362,572
Inter-region outflow	252	269	199	378	368	383
Inter-region coastal outflow	3,321	1,890	1,266	932	966	972
Discharge: surface water*	73,921	73,921	73,921	73,921	73,921	74,012
Discharge: landscape	–	–	–	–	335,143	243,506
Extraction: statutory rights	0	7,797	434	1,108	1,108	20,079
Non-allocated extraction: irrigation*	200	200	200	310	210	61
Allocated extraction: individual users	65,107	53,793	40,608	56,040	50,143	23,559

Urban water system outflows	249,942	260,410	249,731	250,878	249,330	241,917
Supply system delivery: urban users	138,368	141,744	123,830	134,533	136,092	132,547
Discharge: sea	56,602	63,033	76,769	56,381	58,462	64,399
Supply system transfer: inter-region	0	5,854	3,793	4,771	**1,743	4,150
Recycled water delivery: urban users	6,033	6,731	5,623	5,972	**3,547	3,056
Recycled water delivery: irrigation*	25,205	20,392	14,441	21,194	21,024	18,684
Other wastewater discharge	1,265	1,439	582	–	–	–
Other supply system decreases	11,902	2,038	1,825	2,043	1,257	1,325
Wastewater discharge: surface water*	–	–	–	–	–	**2,386
Other wastewater decreases	8,155	6,941	8,394	10,204	8,910	–
Leakage: groundwater*	2,162	11,941	14,130	15,456	18,085	15,309
Managed aquifer recharge*	250	297	344	324	210	61

Irrigation scheme outflows	35,628	31,853	21,879	28,815	26,992	24,149
Delivery	35,628	31,853	21,879	28,815	26,992	24,149

Total water outflows	743,292	865,110	1,015,317	651,185	1,007,337	914,056

Unaccounted-for difference	(39,066)	40,394	(312,234)	**137,017	**114,312	**438,731


Water storage
Surface water storage	92,337	92,399	111,177	103,300	95,231	122,502
Opening surface water storage	92,399	111,177	103,300	**95,231	**123,158	**87,732
Change in surface water storage	(62)	(18,778)	7,877	8,069	**(27,927)	**35,426
Closing surface water storage	92,337	92,399	111,177	103,300	**95,231	**123,158

Groundwater storage	86,356	86,356	86,356	86,356	86,356	86,356
Opening groundwater storage	86,356	86,356	86,356	86,356	86,356	86,356
Change in groundwater storage	0	0	0	0	0	0
Closing groundwater storage	86,356	86,356	86,356	86,356	86,356	86,356
Total closing water storage	178,693	178,755	197,533	189,656	181,587	209,514

* between-store flows

** different to published volume in historical accounts (see Governance section for more information)

National Water Account 2019

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Adelaide: Statement of Water Flows

for the year ended 30 June 2019

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