Murray–Darling Basin
Segments

Water Accounting Statements
- Segment water accounting statements
Reconciliations
- Segment reconciliations

Water Accounting Statements

Segment water accounting statements

The purpose of this note is to provide water accounting information for two segments: Northern Basin and the Southern Basin of the Murray–Darling Basin (MDB) region. These two segments are shown in Figure 1. More details of the segments are included in General description, Surface water and Groundwater sections in the 'Contextual information'.

Tables 1–3 provide water accounting statements for the two segments plus consolidated statements for the whole region.

Figure 1 Segment boundaries for the Murray–Darling Basin region for the 2013 Account

Source for the boundaries of the MDB: Australian Government Department of Sustainability, Environment, Water, Population and Communities.

Table 1 Statement of Water Assets and Water Liabilities as at 30 June 2013
MDB region
		Northern Basin		Southern Basin		Whole region
		2013 ML	2012 ML	2013 ML	2012 ML	2013 ML	2012 ML
Water assets

1 Surface water store
	1.1 Storages	2,972,416	4,314,709	13,039,374	16,872,487	16,011,790	21,187,196
	1.2 Unregulated river	–	–	–	–	–	–
	1.3 Regulated river	20,885	16,249	998,377	1,309,763	1,019,262	1,326,012
	1.4 Lakes and wetlands	–	–	1,799,526	1,811,372	1,799,526	1,811,372
	1.5 Inter-region claim on water	0	0	306,397	913,776	306,397	913,776
	1.10 Other surface water assets	0	0	20,592	19,952	20,592	19,952
1 Total Surface water store		2,993,301	4,330,958	16,164,266	20,927,350	19,157,567	25,258,308

2 Groundwater store
	2.1 Water table aquifer	–	–	–	–	–	–
	2.2 Underlying aquifers	–	–	–	–	–	–
	2.5 Other groundwater assets	1,537,388	1,548,941	2,655,778	2,464,674	4,193,166	4,013,615
2 Total Groundwater store		1,537,388	1,548,941	2,655,778	2,464,674	4,193,166	4,013,615

Total water assets		4,530,689	5,879,899	18,820,044	23,392,024	23,350,733	29,271,923

Water liabilities

5 Surface water store
	5.1 Surface water allocation remaining	1,368,322	2,092,669	2,835,992	5,204,783	4,204,314	7,297,452
	5.2 Surface water allocation remaining - urban water system	0	0	0	0	0	0
5 Total Surface water store		1,368,322	2,092,669	2,835,992	5,204,783	4,204,314	7,297,452

6 Groundwater store
	6.1 Groundwater allocation remaining	0	0	1,907	2,498	1,907	2,498
	6.2 Groundwater allocation remaining - urban water system	0	0	0	0	0	0
6 Total Groundwater store		0	0	1,907	2,498	1,907	2,498

Total water liabilities		1,368,322	2,092,669	2,837,899	5,207,281	4,206,221	7,299,950

Net water assets		3,162,367	3,787,230	15,982,145	18,184,743	19,144,512	21,971,973

Net Water Assets
	Opening Net Water Assets	3,787,230	2,451,601	18,184,743	14,971,265	21,971,973	17,422,866
	Change in Net Water Assets	(624,863)	1,335,629	(2,202,598)	3,213,478	(2,827,461)	4,549,107
Closing net water assets		3,162,367	3,787,230	15,982,145	18,184,743	19,144,512	21,971,973

– = Data not available

Table 2 Statement of Changes in Water Assets and Water Liabilities for the year ended 30 June 2013
MDB region
		Northern Basin		Southern Basin		Whole region
		2013 ML	2012 ML	2013 ML	2012 ML	2013 ML	2012 ML
Water asset increases

9 Surface water increases
	9.1 Precipitation on surface water	157,744	247,093	1,002,385	1,401,857	1,160,129	1,648,950
	9.2 River inflow to region	0	0	2,156,320	4,547,315	451,000	0
	9.4 Runoff to surface water	10,679,507	27,429,924	14,464,367	30,168,072	25,143,874	57,597,996
	9.5 Point return from irrigation scheme	0	0	212,773	198,314	212,773	198,314
	9.6 Overbank flood return to river channel	–	–	–	–	–	–
	9.9 Discharge from urban water system	0	0	31,636	34,325	31,636	34,325
	9.10 Direct discharge by user	–	–	–	–	–	–
	9.15 Increase of inter-region surface water claim on water	0	0	1,748,700	2,560,022	1,748,700	2,560,022
9 Total surface water increases		10,837,251	27,677,017	19,616,181	38,909,905	28,748,112	62,039,607

10 Groundwater increases
	10.1 Groundwater inflow from outside region	0	0	2,646	2,797	2,646	2,797
	10.2 Groundwater inflow from outside region at coast	0	0	50	53	50	53
	10.3 Recharge from landscape	546,103	254,547	992,995	2,871,380	1,539,098	3,125,927
	10.5 Leakage from off-channel water storage	–	–	–	–	–	–
	10.6 Leakage from urban water system	–	–	–	–	–	–
	10.7 Leakage from irrigation scheme	–	–	–	–	–	–
	10.8 Managed aquifer recharge - private user	0	0	631	2,340	631	2,340
	10.13 Other groundwater increases	53,825	1,116,554	216,284	1,567,106	270,109	2,683,660
10 Total groundwater increases		599,928	1,371,101	1,212,606	4,443,676	1,812,534	5,814,777
Total water asset increases		11,437,179	29,048,118	20,828,787	43,353,581	30,560,646	67,854,384

Water liability decreases

13 Surface water liability decreases
	13.1 Adjustment and forfeiture of surface water allocation	112,563	163,023	1,894,975	2,052,327	2,007,538	2,215,350
	13.2 Adjustment and forfeiture of surface water allocation - urban water system	20,929	30,021	152,510	256,722	173,439	286,743
13 Total surface water liability decreases		133,492	193,044	2,047,485	2,309,049	2,180,977	2,502,093

14 Groundwater liability decreases
	14.1 Adjustment and forfeiture of groundwater allocation	299,379	385,945	905,863	692,254	1,205,242	1,078,199
	14.2 Adjustment and forfeiture of groundwater allocation - urban water system	14,329	11,874	17,463	5,205	31,792	17,079
14 Total groundwater liability decreases		313,708	397,819	923,326	697,459	1,237,034	1,095,278

Total water liability decreases		447,200	590,863	2,970,811	3,006,508	3,418,011	3,597,371

Water asset decreases

17 Surface water asset decreases
	17.1 Evaporation from surface water	311,829	313,670	2,725,037	2,672,732	3,036,866	2,986,402
	17.2 River outflow from the region	1,705,320	4,547,315	5,179,600	9,565,600	5,179,600	9,565,600
	17.4 Leakage to landscape	–	–	–	–	–	–
	17.5 Overbank flood spilling	437,901	299,151	0	0	437,901	299,151
	17.6 Surface water diversions - other statutory rights	37,687	37,686	30,523	30,523	68,210	68,209
	17.7 Entitled diversion on non-allocated surface water to users	1,398,405	1,090,894	668,541	523,155	2,066,946	1,614,049
	17.8 Entitled diversion of non-allocated surface water to urban water system	4,177	3,567	8,896	6,294	13,073	9,861
	17.10 River and floodplain leakage, evaporation and errors	6,847,029	19,638,619	7,652,345	17,942,623	14,499,374	37,581,242
	17.17 Decrease of inter-region surface water claim on water	0	0	215,000	625,000	215,000	625,000
17 Total surface water asset decreases		10,742,348	25,930,902	16,479,942	31,365,927	25,516,970	52,749,514

18 Groundwater asset decreases
	18.1 Groundwater outflow to outside region	0	0	21	19	21	19
	18.2 Groundwater outflow to outside region at coast	0	0	1,446	1,551	1,446	1,551
	18.3 Discharge to landscape	34,933	7,104	2,698,664	2,511,257	2,733,597	2,518,361
	18.7 Groundwater extractions - other statutory rights	74,329	48,948	156,087	145,228	230,416	194,176
	18.18 Other groundwater decreases	65,378	8,341	25,180	15,930	90,558	24,271
18 Total groundwater asset decreases		174,640	64,393	2,881,398	2,673,985	3,056,038	2,738,378

Total water asset decreases		10,916,988	25,995,295	19,361,340	34,039,912	28,573,008	55,487,892

Water liability increases

21 Surface water liability increases
	21.1 Surface water allocation announcements	825,265	1,599,474	6,933,312	7,412,187	7,758,577	9,011,661
	21.2 Surface water allocation announcements - urban system	42,492	42,499	496,545	540,521	539,037	583,020
21 Total surface water liability increases		867,757	1,641,973	7,429,857	7,952,708	8,297,614	9,594,681

22 Groundwater liability increases
	22.1 Groundwater allocation announcements	661,110	634,486	1,485,883	1,051,042	2,146,993	1,685,528
	22.2 Groundwater allocation announcements - urban system	27,350	19,107	41,466	6,886	68,816	25,993
22 Total groundwater liability increases		688,460	653,593	1,527,349	1,057,928	2,215,809	1,711,521

Total water liability increases		1,556,217	2,295,566	8,957,206	9,010,636	10,513,423	11,306,202

25 Unaccounted-for difference
25.1 Unaccounted-for difference		36,037	12,491	(2,316,350)	96,063	(2,280,313)	108,554

Change in net water assets		(624,863)	1,335,629	(2,202,598)	3,213,478	(2,827,461)	4,549,107

– = Data not available

Please note 1,705,320 ML for the 2012–13 year and the whole volume for the 2011–12 year for the Southern Basin for line item 9.2 'River inflow to region' was eliminated in the whole region.
Please note the volume for the Northern Basin for line item 17.2 'River outflow from the region' was eliminated in the whole region.

Table 3 Statement of Water Flows for the year ended 30 June 2013
		Northern Basin		Southern Basin		Whole region
		2013 ML	2012 ML	2013 ML	2012 ML	2013 ML	2012 ML
Water inflows

9 Surface water inflows
	9.1 Precipitation on surface water	157,744	247,093	1,002,385	1,401,857	1,160,129	1,648,950
	9.2 River inflow to region	0	0	2,156,320	4,547,315	451,000	0
	9.4 Runoff to surface water	10,679,507	27,429,924	14,464,367	30,168,072	25,143,874	57,597,996
	9.5 Point return from irrigation scheme	0	0	212,773	198,314	212,773	198,314
	9.6 Overbank flood return to river channel	–	–	–	–	–	–
	9.9 Discharge from urban water system	0	0	31,636	34,325	31,636	34,325
	9.10 Direct discharge by user	–	–	–	–	–	–
	9.11 Delivery of water under inter-region agreement to surface water	0	0	2,141,079	1,491,312	2,141,079	1,491,312
9 Total surface water inflows		10,837,251	27,677,017	20,008,560	37,841,195	29,140,491	60,970,897

10 Groundwater inflows
	10.1 Groundwater inflow from outside region	0	0	2,646	2,797	2,646	2,797
	10.2 Groundwater inflow from outside region at coast	0	0	50	53	50	53
	10.3 Recharge from landscape	546,103	254,547	992,995	2,871,380	1,539,098	3,125,927
	10.5 Leakage from off-channel water storage	–	–	–	–	–	–
	10.6 Leakage from urban water system	–	–	–	–	–	–
	10.7 Leakage from irrigation scheme	–	–	–	–	–	–
	10.8 Managed aquifer recharge - private user	0	0	631	2,340	631	2,340
	10.13 Other groundwater increases	53,825	1,116,554	216,284	1,567,106	270,109	2,683,660
10 Total groundwater inflows		599,928	1,371,101	1,212,606	4,443,676	1,812,534	5,814,777

Total water inflows		11,437,179	29,048,118	21,221,166	42,284,871	30,953,025	66,785,674

Water outflows

17 Surface water outflows
	17.1 Evaporation from surface water	311,829	313,670	2,725,037	2,672,732	3,036,866	2,986,402
	17.2 River outflow from the region	1,705,320	4,547,315	5,179,600	9,565,600	5,179,600	9,565,600
	17.4 Leakage to landscape	–	–	–	–	–	–
	17.5 Overbank flood spilling	437,901	299,151	0	0	437,901	299,151
	17.6 Surface water diversions - other statutory rights	37,687	37,686	30,523	30,523	68,210	68,209
	17.7 Entitled diversion on non-allocated surface water to users	1,398,405	1,090,894	668,541	523,155	2,066,946	1,614,049
	17.8 Entitled diversion of non-allocated surface water to urban water system	4,177	3,567	8,896	6,294	13,073	9,861
	17.10 River and floodplain leakage, evaporation and errors	6,847,029	19,638,619	7,652,345	17,942,623	14,499,374	37,581,242
	17.11 Entitled diversion of allocated surface water to users	1,437,049	685,467	7,407,128	5,593,729	8,844,177	6,279,196
	17.12 Entitled diversion of allocated surface water to urban water system	21,563	12,478	344,035	283,824	365,598	296,302
17 Total surface water outflows		12,200,960	26,628,847	24,016,105	36,618,480	34,511,745	58,700,012

18 Groundwater outflows
	18.1 Groundwater outflow to outside region	0	0	21	19	21	19
	18.2 Groundwater outflow to outside region at coast	0	0	1,446	1,551	1,446	1,551
	18.3 Discharge to landscape	34,933	7,104	2,698,664	2,511,257	2,733,597	2,518,361
	18.7 Groundwater extractions - other statutory rights	74,329	48,948	156,087	145,228	230,416	194,176
	18.11 Entitled extraction of allocated groundwater to users	361,731	248,541	580,611	358,429	942,342	606,970
	18.12 Entitled extraction of allocated groundwater to urban water system	13,021	7,233	24,003	1,681	37,024	8,914
	18.18 Other groundwater decreases	65,378	8,341	25,180	15,930	90,558	24,271
18 Total groundwater outflows		549,392	320,167	3,486,012	3,034,095	4,035,404	3,354,262

Total water outflows		12,750,352	26,949,014	27,502,117	39,652,575	38,547,149	62,054,274

25 Unaccounted-for difference
25.1 Unaccounted-for difference		36,037	12,491	(2,316,350)	96,063	(2,280,313)	108,554

Change in water storage		(1,349,210)	2,086,613	(3,964,601)	2,536,233	(5,313,811)	4,622,846

Opening water storage		5,879,899	3,793,286	22,478,248	19,942,015	28,358,147	23,735,301
	add: Change in water storage	(1,349,210)	2,086,613	(3,964,601)	2,536,233	(5,313,811)	4,622,846
Closing water storage		4,530,689	5,879,899	18,513,647	22,478,248	23,044,336	28,358,147

– = Data not available

Please note 1,705,320 ML for the 2012–13 year and the whole volume for the 2011–12 year for the Southern Basin for line item 9.2 'River inflow to region' was eliminated in the whole region.
Please note the volume for the Northern Basin for line item 17.2 'River outflow from the region' was eliminated in the whole region.

Reconciliations

Segment reconciliations

Tables 4 and 5 present information on (1) reconciliation of closing water storage to total water assets for the two segments, and (2) reconciliation of the net change in water storage to the change in net water assets.

Table 4 Reconciliation of closing water storage to total water assets for two segments
Description	Northern Basin		Southern Basin		Whole region
Description	2013 ML	2012 ML	2013 ML	2012 ML	2013 ML	2012 ML
Closing water storage presented in the Statement of Water Flows	4,530,689	5,879,899	18,513,647	22,478,248	23,044,336	28,358,147
1 Surface water
1.1 Storages	2,972,416	4,314,709	13,039,374	16,872,487	16,011,790	21,187,196
1.2 Unregulated river	–	–	–	–	–	–
1.3 Regulated river	20,885	16,249	998,377	1,309,763	1,019,262	1,326,012
1.4 Lakes and wetlands	–	–	1,799,526	1,811,372	1,799,526	1,811,372
1.10 Other surface water assets	0	0	20,592	19,952	20,592	19,952
Total 1 Surface water	2,993,301	4,330,958	15,857,869	20,013,574	18,851,170	24,344,532

2 Groundwater
2.1 Water Table aquifer	–	–	–	–	–	–
2.2 Underlying aquifers	–	–	–	–	–	–
2.5 Other groundwater assets	1,537,388	1,548,941	2,655,778	2,464,674	4,193,166	4,013,615
Total 2 Groundwater store	1,537,388	1,548,941	2,655,778	2,464,674	4,193,166	4,013,615

*Total closing water storage*	*4,118,702*	*5,879,899*	*18,513,647*	*22,478,248*	*23,044,336*	*28,358,147*

plus Other water assets
1 Surface water
1.5 Inter-region claim on water	0	0	306,397	913,776	306,397	913,776
Total 1 Surface water	0	0	306,397	913,776	306,397	913,776

Total other water assets	0	0	306,397	913,776	306,397	913,776

Total water assets	4,530,689	5,879,899	18,820,044	23,392,024	23,350,733	29,271,923

– = Data not available

Table 5 Reconciliation of the net change in water storage to the change in net water assets for two segments
Description	Northern Basin		Southern Basin		Whole region
Description	2013 ML	2012 ML	2013 ML	2012 ML	2013 ML	2012 ML
Change in net water assets	(624,863)	1,335,629	(2,202,598)	3,213,478	(2,827,461)	4,549,107
adjustments for:
(Increase) / decrease in non-physical water assets
1 Surface water
1.5 Inter-region claim on water	0	0	607,379	(443,710)	607,379	(443,710)

Increase / (decrease) in water liabilities
5 Surface water liability
5.1 Surface water allocation remaining	(724,347)	750,984	(2,368,791)	(233,869)	(3,093,138)	517,115
5.2 Surface water allocation remaining - urban water system	0	0	0	(25)	0	(25)
6 Groundwater liability
6.1 Groundwater allocation remaining	0	0	(591)	359	(591)	359

Net change in water storage	(1,349,210)	2,086,613	(3,964,601)	2,536,233	(5,313,811)	4,622,846

Murray–Darling Basin Segments

Water Accounting Statements

Segment water accounting statements

Reconciliations

Segment reconciliations

Graphical Views

Murray–Darling Basin
Segments