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River Murray Waters Act - River Murray Commission - Report - Year - 1968-69


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THE PARLIAMENT OF THE COMMONWEALTH OF AUSTRALIA

1970— Parliamentary Paper No. 34

RIVER MURRAY COMMISSION

ANNUAL REPORT FOR YEAR

1968-69

Presented pursuant to Statute 17 March 1970 Ordered to be printed 19 March 1970

C O M M O N W E A L T H G O V E R N M E N T P R IN T IN G O F F IC E C A N B E R R A : 1970

Printed by A uthority by the G overnm ent Printer o f the C om m onw ealth o f A ustralia

RIVER MURRAY COMMISSION

7th Floor T. &. G. Building Hobart Place

C A N B E R R A , A .C .T .

To Their Excellencies the Governor-General of the Commonwealth of Australia and the Governors of the States of New South Wales, Victoria and South Australia.

In accordance with the provisions of Clause 19 (iii) of the River Murray Waters Agreement a report of the Proceedings of the River Murray Commission during the year ended 30 June 1969 is submitted by the undersigned to the four Contracting Governments.

R. W. C. S w a r t z

Commissioner representing the Commonwealth

A. F. R e d d o c h

Commissioner representing New South Wales

R . A. H o r s f a l l

Commissioner representing Victoria

H. L. B e a n e y

Commissioner representing South Australia

24869/69—2

iii

685

RETIREMENT OF MR W. G. L. HARRISON

On 7 March 1969 Mr W. G. L. Harrison retired at the age of 65 years. Mr Harrison was the first Executive Engineer to be appointed to the River Murray Commission. He joined the Commission in January 1950 from the New South Wales Water Conservation and Irrigation Commission. During his nineteen years as Executive Engineer he contributed greatly to the better conservation and regulation of the water resources of the Murray Valley. The Commission records its appreciation of the guidance and support given by him and wishes to acknowledge with thanks his significant contribution.

v

687

CONTENTS

Page

M em bers o f th e R iv e r M u rra y C o m m is s io n . . . . . . . 1

Powers an d D u tie s . . . . . . . . . . . 1

F uture D e v e lo p m e n t o f W a te r R e so u rc e s . . . . . . . 1

O ther In v estig atio n s . . . . . . . . . . . 4

R egulation o f th e flow o f th e M u r r a y . . . . . . . . 4

R egulation o f th e flow o f th e M u r r u m b id g e e R iv e r . . . . . 7

G augings . . . . . . . . . . . . . 7

D iversions . . . . . . . . . . . . 7

Salinity in th e R iv er M u r r a y . . . . . . . . . 9

N av ig atio n ....................................................................................................................................11

‘Collings’ Trophy . . . . . . . . . . . 12

H um e R e serv o ir C a tc h m e n t . . . . . . . . . 12

W o r k s ...............................................................................................................................................12

F in an ce . . . . . . . . . . . . . 14

O rg a n isa tio n a n d S ta ff . . . . . . . . . . 16

APPENDICES

i F in a n c ia l S ta te m e n ts . . . . . . . . . 20

ii R iv er M u r r a y in S o u th A u s tr a lia . . . . . . . 28

L ak e V ic to ria S to ra g e T a b le W a te r flo w in g to S o u th A u s tra lia E v a p o ra tio n fro m th e R iv e r M u r r a y in S o u th A u s tra lia

hi H u m e R e se rv o ir, E v a p o ra tio n a n d R a in fa ll . . . ■ ·

iv R iv er M u r r a y W a te r Q u a lity . . . · · ■ · ·

v R e p o rts fro m th e S oil C o n s e r v a tio n A u th o ritie s o n H u m e C a tc h m e n ts

vi G a u g in g o f th e R iv e r M u r r a y a n d T rib u ta r ie s . · · ■ ·

v n D iv ersio n s a n d I m p o u n d in g s by S ta te A u th o ritie s . . . ■

N e w S o u th W ales V icto ria S o u th A u s tra lia

vii

H U M E RESERVOIR / 0 / 5 7 - * # s i r r .

F rom a storage o f only 25,000 acre fee t in A p ril • It t / . - . A.-s' tv r * r, , ............. * - - - - -

REPORT OF RIVER MURRAY COMMISSION

FOR THE YEAR ENDED 30 JUNE 1969

MEMBERS OF THE RIVER MURRAY COMMISSION

The River Murray Waters Agreement provides that the Commission shall consist of four Commissioners of whom one shall be appointed by the Governor-General of the Com­ monwealth, one by the Governor of New South Wales, one by the Governor of Victoria and one by the Governor of South Australia.

The River Murray Commission as constituted at 30 June 1969 was as follows: Commonwealth . . The Honourable David Fairbairn, d .f . c ., m .a ., m . p .,

Minister for National Development Mr R. W. Boswell, o . b . e ., m . s c . (Deputy Commissioner)

New South Wales . Mr A. F. Reddoch, a . m .t . c ., f . i .e .a u s t .

Victoria . . . Mr R. A. Horsfall, m .b .e ., m . c .e ., b . m e c h . e ., f . i . e .

A U S T ., M .I .W .E . ( L O N .)

South Australia . . Mr H. L. Beaney, m .e ., f . s . a . s .m ., f .i .e .a u s t .

During the past year Mr R. J. Shannon, Assistant Director, Engineering Services, Engineering and Water Supply Department, South Australia, was appointed to act as Deputy Commissioner representing South Australia and Mr J. B. Cunneen, Chief Engineer, Investigations and Farm Water Supplies, Water Conservation and Irrigation Commission succeeded Mr D. E. Davidson as Deputy Commissioner representing New

South Wales.

POWER AND DUTIES

The River Murray Waters Agreement provides the Commission with powers and duties for the initiation and co-ordination of investigations and surveys for the conservation, development and regulation of the waters of the River Murray and to arrange for the construction, maintenance and operation of the works set out in the Agreement.

FUTURE DEVELOPMENT OF WATER RESOURCES

Investigation of Chowilla and Dartmouth Projects In its Annual Report for 1967-68 the Commission advised that the Chowilla project had been deferred pending further investigation. As previously reported the Commission had:

• appointed Messrs Gutteridge, Haskins and Davey in conjunction with Hunting Technical Services as Consultants to examine the whole question of salinity in the Murray Basin;

• directed its Technical Committee (a committee of engineers representing the three States and the River Murray Commission) to undertake a large number of operational studies to assess the likely yield benefits from both Chowilla and any alternative storage on the upper Murray in catchments controlled by the River

Murray Commission, under a wide variety of operating conditions; e engaged the Snowy Mountains Authority to undertake investigations to determine the engineering feasibility and estimate the cost/capacity relationship of storages on the Mitta Mitta River at Dartmouth and Gibbo and on the Upper Murray

River at Murray Gates and Jingellic.

1

mammm M H

A erial view o f D a r tm o u th D am site view ed fro m upstream .

The results of the Snowy Mountains Authority’s investigations into the feasibility and cost of the various alternative damsites above Hume Reservoir were combined with studies by the Technical Committee of the effect of each alternative and combination of alternatives on system yield. The choice of the next stage of development of the River Murray resources was narrowed down to a comparison between Chowilla and Dart­ mouth on the Mitta Mitta River. Subsequently more detailed field and office investiga­ tions of the Dartmouth damsite were carried out by the Snowy Mountains Authority

which confirmed the earlier preliminary estimate of feasibility and cost of the Dart­ mouth site. The progress of these investigations was reported by the Commission in two publications which were issued during the year and given wide distribution. These were:

• Statement on Proposal for Further Storage on the River Murray—September 1968.

• Reports to the River Murray Commission Relating to the Future Development of the Water Resources of the River Murray—January 1969.

Following consideration of the investigations which had been carried out to that time by the Technical Committee, the Salinity Consultants and the Snowy Mountains Authority, the River Murray Commission in February 1969 agreed that a 3 million acre feet storage at Dartmouth provided the greatest overall benefits in terms of cost and yield and should be the next development of the resources of the River Murray. The question of sharing the benefits which would arise from such a storage could not

be resolved and the matter together with the proposal to construct a dam at Dartmouth was therefore referred to the respective Governments.

Ministerial A greement Ministers representing the four Governments concerned met in March 1969 and agreed on conditions for the construction of Dartmouth Project. The terms of the ministerial agreement were as follows:

‘Agreement was reached that the Dartmouth Project should be the next project to be constructed for development of the River Murray Commission resources on the conditions given below, but the States’ agreement was conditional upon Com­ monwealth finance being available to assist them in financing their share of the cost of Dartmouth.

1. South Australia's entitlement be increased from 1.254 million acre feet per annum to 1.500 million acre feet per annum. 2. In times of restriction the available water would be shared equally between the three States.

3. All parties accepting the responsibility of meeting their share of the cost of any future works which may be constructed by the River Murray Commission. 4. Investigations should proceed with a view to determining the extent of works necessary to ensure the effectiveness of the Lake Victoria works when operated

in conjunction with Dartmouth. 5. The Menindee Lakes Storage Agreement should be extended in perpetuity, but at the same time the reservation of water for New South Wales usage be increased by 10,000 acre feet* per annum. 6. New South Wales would be entitled to use 45,000 acre feet of Victorian tributary

flow in normal years, and 30,000 acre feet per annum in a year of restriction. 7. Maintenance of certain minimum specified flows downstream of Torrumbarry and Euston Weirs for salinity control purposes on the basis decided by the River Murray Commission for 1968-69.

Points 1, 2, 6 and 7 are to apply from the time the Dartmouth Project is declared effective by the River Murray Commission.’ At the end of the 'year under review the Commonwealth Government was con­ sidering an approach from the States for assistance in financing the Project. Pre­ liminary work was proceeding with necessary amendments to the River Murray Waters Agreement which would have to be ratified before work could proceed with detailed design and construction.

Description of the Dartmouth Project The Dartmouth damsite is on the Mitta Mitta River approximately 9 miles east of the village of Mitta Mitta in north eastern Victoria. The site is about 4 miles downstream of the junction of the Dart River.

The proposed dam would consist of a central earth core of decomposed granite flanked on either side by filter zones and an outer shell of quarried gneiss. The embankment would be about 590 feet above foundation, the crest length would be 2,300 feet and volume of fill about 20 million cubic yards. The arrangement provides for an uncontrolled spillway with a 300 feet long crest discharging through a short

length of concrete lined chute into the rock quarry where the energy of the watei would be dissipated over a series of cascades. The present arrangement proposed for the permanent outlet works would take advantage of a 20 feet diameter concrete lined diversion tunnel with a valve house and outlet valves located at the downstream end of the tunnel.

As the River Murray Waters Agreement does not prescribe responsibilities for construction of work on a tributary of the Murray, the proposed amendments to the Agreement include provision for the State of Victoria to be responsible for the construction of this project.

♦ F rom 90,000 to 100,000 acre fe e t per annum .

3

2 4 8 6 9 /6 9 — 3

Programme for Design and Construction Provided that the necessary enabling legislation is completed during 1969, the programme of design and construction provides for the commencement of filling of this storage to take place in 1974 with the main contract complete by the end of 1975.

Hydro-electric Facilities Dartmouth The Commission has engaged the Snowy Mountains Authority to carry out, in close co-operation with the State Electricity Commission of Victoria, an investigation into the economic feasibility of installing a hydro-electric plant at Dartmouth.

OTHER INVESTIGATIONS

Weir and Lock 15, Euston In April 1969 the Commission decided that Weir and Lock 15, Euston, where some of the concrete structure is badly cracked, should be repaired and at the same time consideration be given to raising its height by not more than 3 feet to provide an additional 40,000 acre feet of valuable operating storage. The Constructing Authority for New South Wales is proceeding with the necessary designs.

Weir and Lock 10, Wentworth The Commission agreed that the remedial work required at the existing structure should proceed including the reduction in width of the navigable pass and replacement of lock gates.

Improvements to River Channel— Hume to Yarrawonga Investigations continued into the capacity of the channel of the River Murray between Hume Dam and the headwaters of Yarrawonga Weir. These investigations are to determine the extent of work and cost required to make this channel suitable for carrying regulated flows.

Aerial photography of this section of the river and field inspections were carried out.

REGULATION OF THE FLOW OF THE MURRAY

The main storages under the control of the River Murray Commission, namely Hume Reservoir, Lake Victoria and Menindee, from being virtually empty at the end of the 1967- 68 irrigation season, had partially recovered by 30 lune 1968. Above average inflows to the system during the winter and spring of 1968 enabled Hume and Lake Victoria to completely recover, thus ensuring an adequate supply of water for the

1968- 69 irrigation season.

In November 1968, the Commission, after reviewing the actual storage position and forecast inflows was able to announce that restrictions to supply would not be necessary during the 1968-69 season. The season was unusual in many respects. After a wet spring which was charac­ terised by strong westerly winds resulting in a heavy build-up of the snow pack in the mountains, irrigation deliveries were interrupted on a number of occasions by wide­ spread rain. Heavy falls late in the season resulted in local flooding and caused extensive losses to vine crops in the Sunraysia and South Australian irrigation areas.

The discharge of water from Hume Reservoir and Lake Victoria and at Yarrawonga Weir was regulated in accordance with the requirements of the three States. The storage in Hume Reservoir at the end of each month and the total monthly flows in the River Murray at Albury (Doctor’s Point gauge), Yarrawonga and Euston are given in the following table.

4

M onth R eservoir

storage at end o f m onth

D ischarge o f R iver Murray at

Albury (D octor’s Point gauge) Y arraw onga

(below weir) Euston (below weir and Lock 15)

T housands }f acre feet

1968 Ju n e . . . . 634

July . . . . 842 53 135 677

A ugust . . . 1,466 95 435 582

Septem ber. . . 1,824 113 208 829

O ctober . . . 2,401 326 444 288

N ovem ber. . . 2,471 461 491 402

D ece m b e r. . . 2,418 260 215 269

1969 January . . . 2,083 434 260 113

F ebruary . . . 1,779 362 279 150

M arch . . . 1,553 348 291 263

A pril . . . 1,557 176 172 333

M ay. . . . 1,665 87 158 311

Ju n e . . . . 1,973 43 169 451

TOTAL , . 2,758 3,257 4,668

Hume Reservoir At the start of the year the storage held 634,000 acre feet. Inflow during the winter and spring was slightly above average, resulting in the storage reaching a level such that surplus water was released in late October to provide temporary flood pondage for the control of possible high inflows from the near record snow cover. In the event, the spring run-off occurred in a fairly uniform fashion. Actual inflow for the year was

3,539,000 acre feet. The inflow was affected by the operation of the Snowy works. On the one hand it was reduced due to diversion of 294,000 acre feet from the Tooma River, a tributary of the Murray and, on the other hand, a net volume (after allowing for diversion ot

the Geehi to the Snowy) of 202,000 acre feet was diverted into the Murray from the Snowy. In the absence of any works in the Hume catchment, inflow for the year is estimated to have been 3,632,000 acre feet which is 112% of the long term average. Details are shown in the following table.

Month

1

Actual inflow

2

Nett

Snowy to Murray diversion

3

Diversion

Tooma River to

Pond

T h o i

1968 July . . . 198.6 57.6 10.3

A ugust . . 627.3 29.8 24.1

Septem ber . . 394.2 6 .0 37.5

O ctober . . 760.0 - 3 0 .6 * 66.8

N ovem ber . . 4 2 9 .2 - 3 1 .0 * 68.3

D ecem ber . . 189.8 1.5 20.2

1969 January . . 101.6 5.1 9 .8

F ebruary . . 57.6 1.3 5.3

M arch . . 111.9 2 0 .5 7 .6

A pril . . . 160.8 39.8 10. 1

M ay . . . 185.4 36.0 15.9

June . . . 322.9 66.1 18.1

TOTAL . . 3,539.3 202.1 294.0

Adjustment for change in storage Tooma,

Geehi and Khancoban Reservoirs

Natural inflow 2 3 4

T housands o f acre feet

+ 6.1

- 4 . 7

- 2 . 5

20. 8

14.0 1. 8

- 1 . 0

I .2

- 5 .8

1.5

4 0 . 6

- 2 . 9

- 1 . 1

157.4 616.9 4 23.2 878.2

514.5 210.3

105.3 62.8 9 3 .2 132.6

165.9 272.0

Long term average natural inflow

376 461 528 561

341 189

1 10 71 79 101 152 277

Percentage of long

average

42 134 80 157 151

96 89 118 131 109

98

3.632.3 3.246 112

In these months, diversions took place from the Geehi River to Lake Jmdabyne.

5

The storage rose to reach a maximum level of R.L. 635.89 within the accepted operating margin of full supply level (R.L. 635.75 to R.L. 636.00) in late November, following which the storage fell as releases were made for irrigation.

As mentioned above, releases from the Reservoir for irrigation purposes were inter­ rupted on a number of occasions due to rainfall over the irrigation areas. The maximum rate of release for irrigation from the dam was 8,650 cusecs during January 1969. Releases for irrigation continued until 13 May 1969. The storage reached a minimum level of R.L. 614.92, equivalent to a storage of 1,555,600 acre feet, on 11 May 1969 after which the storage increased to reach R.L. 625.19 or 1,973,200 acre feet at 30 June 1969.

Yarrawonga Weir

The level of Lake Mulwala was about 4 feet below full supply level at the beginning of the year and was gradually raised to reach full supply level at the beginning of August and remained at or about this level until 21 May 1969 following which the storage was emptied to permit general maintenance of the ten regulating gates.

Yarrawonga Weir

Diversions commenced to Mulwala Canal on 15 August and to Yarrawonga Canal on 27 August 1968. Maximum discharges of 3,000 cusecs in the Mulwala Canal on 11 March 1969 and 1,200 cusecs in the Yarrawonga Canal on 7 March 1969 were recorded. Diversions to New South Wales ceased on 16 May 1969 and to Victoria on

14 May 1969.

Menindee Lakes

The total volume in the Menindee Lakes storages was 564,200 acre feet on 1 July 1968 and this volume increased to 807.000 acre feet by mid October. Releases were not required by the River Murray Commission until 5 February 1969 and these releases continued until 3 March 1969. The total volume of water discharged at Burtundy as a consequence of this release was 65.800 acre feet. The storage continued to fall under the

influence of evaporation until mid March and then rose slowly until the end of the year when it was 699,900 acre feet.

6

Flow to South Australia The estimated flow passing to South Australia during the year was 3,900,000 acre feet. With the exception of January, where 98% of the statutory entitlement was provided, the entitlements in all other months were exceeded. The rate of flow passing Lock 9 varied between a maximum of 14,000 cusecs at the end of September and a minimum of 160 cusecs late in January. Flow to South Australia was augmented by drawing on Lake Victoria storage during the months of January and February 1969. Further details are shown in Appendix ii.

Lake Victoria Storage At the beginning of the year the storage in Lake Victoria was 326,000 acre feet (59% of capacity). The high flows which prevailed during the spring enabled substantial diversions to the Lake, which was filled on 10 October. The storage remained at or close to full supply level until mid December. Releases during January and February 1969 reduced the storage to about 77% of full capacity but subsequent high flows in the river resulted in the lake being filled again in April. Lake Victoria remained full until the end of the year. Further details are shown in Appendix it.

REGULATION OF THE FLOW OF THE MURRUMB1DGEE RIVER:

OPERATION OF WEIRS FOR STORAGE AND FLOODING, 1968-69

Maude Weir The weir was operated to divert water to Lowbridge Flood Control and Irrigation District from 1 August 1968 to 20 September 1968; from 18 October 1968 to 4 January 1969 and again from 27 February 1969 to 8 March 1969. The volume of

water diverted was 141,600 acre feet. The weir was also operated during the summer months of the year to regulate flows in the lower reaches of the Murrumbidgee River.

Redhank Weir The weir was operated to continue the diversion of water to Lowbridge Flood Control and Irrigation District commenced during the previous year and diversion continued until 27 November 1968. The volume of water diverted was 97.900 acre

feet. The weir was also operated during the summer months to regulate flows in the lower reaches of the Murrumbidgee River.

GAUGINGS

The gauging of the flow of the River Murray and its tributaries during the year was continued by the three State Contracting Governments on behalf of the Commission. Appendix VI shows the results o f such gaugings at the various gauging stations estab­ lished under the Commission's directions.

DIVERSIONS

As required by the River Murray Waters Agreement, the appropriate authorities o! the Governments of New South Wales, Victoria and South Australia have supplied statements indicating the quantities of water diverted during the year from the Riser Murray and its tributaries.

This information is included in Appendix v i i . The table below summarises the impoundings on the River Murray and on the tributaries of the Murray in New South Wales and Victoria and the divers,on from the Murray and its tributaries in the three States.

7

M onth

N ew South Wales Victoria

I South

Australia Impoundings on the River Murray

Total

1 diversions and im­ poundings

Im pound­ ! ings in

ί reservoirs J on Murray 1 tributaries

D iversions from River Murray and its

tributaries

I Impound- ings in 1 reservoirs on Murray 1 tributaries

Diversions from River Murray and its

tributaries

Diversions from the

Murray

Lake

I Victoria

T housands o f acre feet

1968 July . . 263 30 273 22 6 208 138 940

August . . 717 121 478 45 10 624 83 2,078

Septem ber . 296 372 158 190 36 358 - 1 1,409

O ctober . . 259 337 389 300 30 577 4 1.896

N ovem ber . - 3 8 325 84 271 42 70 - 6 748

Decem ber . - 2 1 4 296 - 1 1 3 313 41 - 5 3 2 272

1969 January . . - 3 3 9 385 - 2 6 2 400 51 - 3 3 5 - 9 3 - 1 9 3

F eb ru ary . . - 2 8 4 265 - 1 3 9 311 42 - 3 0 4 - 3 2 - 1 4 1

M arch . . 10 178 - 1 0 6 280 33 ! - 2 2 6 115 284

April . . 425 74 12 145 24 4 14 674

M ay . . 178 52 20 62 13 108 - i 432

June . . 379 9 84 7

8

308 -

- 2 793

TOTALS . 1,652 | 2,444 1 854 1 2,346 336 1,339 221 1 9,192

These figures do not take account o f Queensland diversions and im poundings from U pper D arling tributaries.

Of the total flow of the River Murray and its tributaries in 1968-69 4,096,000 acre feet was diverted and impounded by the State of New South Wales and 3,200,000 acre feet by Victoria and 336,000 acre feet was diverted by South Australia. During 1968-69 3,904,000 acre feet was passed to South Australia compared with a figure

of 1,279,000 acre feet in the year 1967-68.

The actual diversion from the River Murray itself in 1968-69 by New South Wales was 948,000 acre feet, and by Victoria 1,129,000 acre feet.

Diversions from the Tooma and Geehi Rivers and the Snowy Mountains Scheme Monthly diversions from the Tooma River to the Tumut River and Lake Eucumbene and, diversions of the Geehi River to Lake Jindabyne (unadjusted for changes in the storage of Tooma and Geehi Reservoirs) were as follows:

Snowy Scheme Diversions from Murray Catchment

Month | Tooma diversion Geehi diversion Total

T housands o f acre feet

1968 1 I

July . . . . 1 10.3 10.3

August . . . 24.1 24.1

Septem ber . . . ' 37.5 37.5

O ctober . . . 66.8 31.7 98.5

N ovem ber . . . 68.3 3 1 .0 99.3

Decem ber . . . 20.2 0. 1 20.3

1969 Jan u ary . . . 9 .8 • - 9 .8

F ebruary . . . 5.3 5.3

M arch . . . 7.6 7 .6

A pril . . . 10.1 10.1

M ay . . . . 15.9 15.9

June . . . . 18.1 18.1

TOTALS . . 294.0 1 62.8* 356.8

*Note: The diversion o f 62 .8 thousand acre feet from the Geehi was returned to the Murray by 30 June 1969.

8

697

The nett storage change in Tooma and Geehi Reservoirs for 1968-69 was 3.7 thousand acre feet thereby giving a total diversion from the Murray catchment of 360.5 thousand acre feet.

The diversions from Geehi River to Lake Jindabyne occurred during the months of October, November and December when inflows to Geehi Reservoir were in excess of requirements for generation through the Murray 1 Power Station and surplus flows were diverted back to Lake Jindabyne for subsequent return to the Murray when required on completion of the Jindabyne Pumping Station. In response to a request from the Commission an undertaking was received from the Snowy Mountains Council that any water diverted from the Murray catchment via the Snowy-Murray tunnel would subsequently be returned in full.

In the event, during 1968-69, the combination of high inflows to works of the Snowy Mountains Scheme combined with the requirement to produce the minimum notified quantities of electricity from the Murray 1 Power Station resulted in the diversion to the Murray catchment of 265 thousand acre feet. The table below sets out the actual volumes diverted to and from the Murray catchment.

M onth

1

D iversions from Murray catchment (T oom a and G eehi Rivers)

2

D iversions to Murray catchm ent (Snow y-

Murray diversion)

3

Adjustment for change in storage, T oom a, Geehi and Khancoban

reservoirs

N ett gain to Murray catchment 2— 1— 3

T housands )f acre feet

1968 July . . . 1 0 .3 5 7 . 6 + 6 .1 4 1 . 2

A ugust . . . 2 4 .1 2 9 .8 4 . 7 1 0 .4

Septem ber . . 3 7 .5 6 . 0 - 2 . 5 - 2 9 . 0

O ctober . . . 9 8 .5 1 . 1 + 2 0 . 8 - 1 1 8 . 2

N ovem ber . . 9 9 .3 1 4 .0 - 8 5 . 3

D ecem ber . . 2 0 .3 1 .6 + 1 .8 - 2 0 . 5

1969 Ja n u ary . . . 9 . 8 5 . 0 - 1 . 0 - 3 . 8

F ebruary . . . 5 .3 1 .3 + 1.2 - 5 . 2

M arch . . . 7 . 6 2 0 .5 5 .8 1 8 .7

A pril . . . 1 0 .1 3 9 .8 - 1 . 5 2 8 .2

M ay . . . 1 5 .9 3 6 . 0 + 0 . 6 1 9 .5

June . . . 1 8 .1 6 6 .1 - 2 .9 5 0 .9

TOTALS . . 3 5 6 .8 2 6 4 .8 + 1. 1 - 9 3 . 1 *

* Held in Snowy storages and to be subsequently returned to the Murray.

For the water year, 1 May 1968 to 30 April 1969 and after making allowance for paying back the volume of 44,000 acre feet advanced during the previous water year to meet the critical drought condition, 114,000 acre feet of water diverted from the Tooma and Geehi Rivers was not replaced during the last water year. An under­

taking has been given by the Snowy Mountains Council that this water which is currently held in Snowy storages will be released into the Murray catchment having due regard to electricity and irrigation requirements.

SALINITY IN THE RIVER MURRAY

Over the past three years, a comprehensive salinity sampling system has been built up for the River Murray and its tributaries. Through the three State Gauging Authori­ ties, regular sampling of River Murray waters is now carried out at 23 stations between Hume Dam and Goolwa. The detailed results of this sampling can be found in

Appendix iv. During 1968-69, satisfactory water qualities were maintained at all River Murray irrigation areas.

9

Investigations by Consultants

The Annual Report for the year 1967-68 referred to the appointment of Messrs Gutteridge, Haskins and Davey, Consulting Engineers of Melbourne, in association with Hunting Technical Services of London, as Consultants to the Commission on the investigations into the general question of salinity in the River Murray. The Consult­

ants submitted a number of interim reports during the year and at the end of the period had substantially completed their investigations. Preparation of their final report was in progress.

Mitigation of Salinity

Following experience with the regulation of the river to mitigate the effect of salinity slugs, the Commission at its meeting in October 1968 adopted the policy of providing for minimum flows downstream of Torrumbarry and Euston Weirs with the aim of ensuring as far as possible that salinity levels at Swan Hill or Merbein did not consistently exceed 300 p.p.m T.D.S.

Due to generally favourable conditions which existed during the irrigation season of 1968-69 and the substantial surplus of flows which existed for much of the season, it was not necessary to operate in accordance with the Commission’s adopted mini­ mum flows on many occasions during the year.

The salinity conditions in the river were also improved by the commencement of operation of the Barr Creek and Lake Hawthorn diversion works. These two salinity reduction projects which were constructed by the Victorian State Rivers and Water Supply Commission under a Commonwealth grant, were commissioned early in the

1968-69 irrigation season.

The Barr Creek pumps, located near Kerang, diverted for evaporation in Lake Tutchewop, a volume of 7,200 acre feet of water containing 24,200 tons of salt.

The Lake Hawthorn pumps, near Mildura diverted to inland evaporating basins a volume of 2,300 acre feet of drainage water with a salt content of 9,200 tons. Due to the limited evaporating capacity of the storage basins it is not possible or necessary to pump continuously from Barr Creek or Lake Hawthorn. Both projects are operated in accordance with criteria adopted by the State Rivers and Water Supply Commission which provide for the release of saline water from either Barr Creek or Lake Hawthorn when high flows exist in River Murray. These releases are carefully controlled such that no marked increase in River Murray salinity is produced.

10

9 10 II 15 26

(Kulnine) (Went­ worth) (Mildura) (Euston) (Torrum-

65

323

135

n.a.

372

19,725 (3)

7

n.a.

11

n.a. (4)

(1) Closed for shipping for most o f year. (2) Closed for shipping for early part o f year. (3) Closed for shipping from 15 May. (4) Including 4 in both directions. In addition 4 craft were transported overland.

Weir and Lock N o. 6— Callings Trophy Winner 1968-69

COLLINGS TROPHY

Following an inspection with appropriate officers of the Constructing Authorities, the Executive Engineer recommended that the Ceilings Trophy for 1968-69 should be awarded to Lockmaster Mr K. Toth at Weir and Lock No. 6. The recommendation was approved and the trophy awarded accordingly.

HUME RESERVOIR CATCHMENT

As required under Clause 2 8a of the River Murray Waters Agreement, the appropriate Authorities of the States of New South Wales and Victoria have submitted reports in relation to the protection of the catchment area within their respective States for the twelve months ending 31 March 1969. Copies of the reports are included in Appendix v.

WORKS— HIGHLIGHTS OF CONSTRUCTION AND MAINTENANCE Routine operations, including regular recording and transmission of hydrological quantities and the maintenance of structures, buildings, grounds, equipment, machinery and plant were carried out at all works. Summarised below are a number of construc­ tional and maintenance items of a non-routine nature which occurred at the various structures.

Hume Dam and Reservoir Work was carried out to improve the drainage and layout of the works area on the right abutment of Hume Dam. Surplus buildings in the area were removed and general improvements made. The auxiliary turbine was re-commissioned in April 1969 following modifications. Minor damage was caused to the No. 3 irrigation valve in November

1968 when concrete became dislodged from staging left inside the trashrack structure after construction and was swept down the penstock. The valve was repaired. Diving operations were undertaken to remove the remainder of the concrete staging from inside the trashrack and to clear some of the accumulated timber debris from the racks.

12

In order to supply the newly established fish farm of Mr N. C. Douglas just downstream of the dam a 15-inch diameter pipeline was installed at his cost to draw water from Nos 3 and 4 penstocks.

A further section of guard rail was erected on the downstream side of the roadway on the main embankment and a section of the lake margin below the Bethanga- Tallangatta road was stone beached to prevent erosion.

Chowilla Dam

Work on this project has been suspended and as previously recorded contracts were cancelled and investigations discontinued. A final report by Soil Mechanics Limited, London, for the flow network analysis under the dam was received and this and other reports and test results are held by the Constructing Authority of South Australia. A number of houses and minor items of equipment were disposed of.

Weirs and. Locks— New South Wales and Victoria

Yarrawonga Weir In May 1969 the level of Lake Mulwala was lowered and the storage emptied to permit general maintenance of the ten regulating gates. New side seals were fitted, the rollers were serviced and the upstream faces of the gates completely painted. Spot painting as required was carried out on the downstream side of the gates. Repairs to stone beaching, downstream of the weir, were carried out on both sides of the river and additional kerbing was placed and the car park sealed.

Torrumbarry Weir A new shed for the storage of drop-bars was erected at the New South Wales end of the weir, electrical reticulation was extended and improved, sections of roads in the reserve were gravelled and kerbing laid. The weir trestles were not withdrawn during the year.

Weir and Lock No. 15, Euston A new fence was erected along the eastern boundary and work on a new access road to the lock side was substantially completed.

Weir and Lock No. 11, Mildura Preparations were commenced for the installation of replacement steel lock gates. A new store for drop-bar storage and workshop was erected. The weir trestles were not withdrawn during the period.

Weir and Lock No. 10, Wentworth Following re-positioning of the needle beams, boule panels and sluice logs during June and July 1968, leakage through the structure was considerably reduced and remained at a satisfactory low level throughout the season. Investigation and design work associated with the rehabilitation of the structure

continued.

Maude Weir on the Murrumbidgee River The deteriorated timber deck of the top chord walkway was replaced using steel Gridmesh and an amenities block was completed and a rabbitproof fence along the entrance and southern boundaries completed.

Redbank Weir on the Murrumbidgee River The deteriorated timber deck on the top chord walkway was replaced using steel Gridmesh, and a new foot and trolley access bridge was completed during the year. The new amenities block was constructed and work was proceeding on the access road where timber bridges are being replaced with concrete culverts. Construction of a double garage on the right bank was commenced.

Locks, Weirs and Barrages in South Australia Lock 3 Final details of lock gate replacement were completed with the erection of gate hoist towers and the fitting of the hydraulic operating mechanism. Work on the reduction of the navigable pass commenced in March and at the end of the > ear 25 < of the work had been completed. Four welded trestles were placed in the 100 feet adjacent to the lock chamber which will be the width of the reduced navigable pass.

Four trestles are to be concreted in to form new piers and the stop logs for placing between the new piers have been manufactured.

13

Tauwitchere barrage-deck replacement in progress

Lock 2 Work on gate replacement was substantially completed except for the actual installation and fitting of the four gates.

Barrages At Mundoo Barrage a new residence was completed in August 1968. At Tauwitchere Barrage a further 100 bays (200 deck units) of prestressed concrete decking were laid. A further 22 bays are required to complete redecking of the barrage.

Derrick Boat Replacement A contract was let to Adelaide Ship Construction by the Australian Shipbuilding Board for the construction of a new vessel to replace the paddle steamer Industry and the 90-foot derrick boat. At the end of the year 80% of the steel floors, 60% of the transverse bulkheads, 100% of the longitudinal members and 100% of the ‘T’ section transverse bottom frames had been fabricated. The vessel will be pre­ assembled in six sections in Adelaide and transported for final assembly at the Mypolonga launching site.

FINANCE

As required under Clause 19 (iii) of the River Murray Waters Agreement 1915-1966 financial statements for the year ended 30 June are included in this report. These statements are based on the financial provisions of the Agreement between the Com­ monwealth and the States of New South Wales, Victoria and South Australia.

The report by the Auditor-General for the Commonwealth as to the financial state­ ments as required by Clause 40 of the Agreement is shown at Appendix i.

Funds to meet the Commission's expenditure are advanced to the Commission by the Contracting Governments pursuant to Clauses 32, 33 and 38 of the Agreement. Funds provided in 1968-69 by the Contracting Governments were S '.9 million.

14

Estimates

Estimates of expenditure as forwarded to the four Contracting Governments were —construction of works $1.1 million; maintenance, operation and control of completed works and gauging stations, $1.2 million.

The construction estimates included expenditure on investigations of the Dartmouth Dam site on the Mitta-Mitta River of $300,000, $230,000 for work associated with salinity investigations and $320,000 for payment to New South Wales in compliance with the Menindee Lakes Storage Agreement.

The estimates and cash requirements were further reviewed by the Commission during the year and Contracting Governments advised of reduction in the estimated call-up of funds for Construction to $860,000; and the Maintenance estimated call-un of funds to $960,000.

Expenditure The net expenditure on construction works in 1968-69 amounted to $909,444. This included $254,233 on investigations into the dam site at Dartmouth; $306,514 on salinity investigations and $320,000 for Menindee Lakes Storage.

Contributions by the four Governments for construction works have totalled $53.9 million since commencement of the Agreement.

The cost of maintenance, operation and control of complete works and gauging stations totalled $1,002,439 compared with $624,403 in the previous year. The increase in maintenance expenditure was attributable mainly to the replacement of lock gates in South Australia and Victoria.

The net amounts expended by the Constructing Authorities in the financial year 1968-69 were:

Construction Maintenance, etc.

$ $

By the C onstructing A u th o rity for— New S outh W ales . . . . 477,621 294,692

V ictoria . . . . . . 494,535 150,456

S outh A ustralia . . . . . 62,712 Cr. 557.291

t o t a l ................................................ 909.444 1,002,439

Administrative Expenses Accompanying the report of the Commonwealth Auditor-General (Appendix i) is a copy of a certified statement of receipts and payments relative to the Adminis­ trative Expenses account of the Commission. Expenditure for the twelve months under review amounted to $51,511 compared with $29,431 in 1967-1968. The increase in expenditure was mainly occasioned with the payment of furlough and the appoint­

ment of staff.

T oils Tolls are levied only on cargo vessels passing through Lock No. 1 ( Blanchetown). The question of tolls at other locks has been deferred pending an improvement in river traffic. No cargo vessels passed through Lock No. I during the > car.

Revenue from Marginal Lands and Buildings Net revenue from marginal lands and buildings during the year amounted to $12,558 and was distributed equally between the three State Contracting Governments.

15

Revenue from Sale of Water for Generation of Electricity In accordance with the provisions of the Agreement entered into between the Commission and the States of New South Wales and Victoria payment at the rate of 0,0067 cents per kWh of electricity supplied by the turbo-generators installed at Hume Dam is payable to the Commission. Revenue from this source amounted to $9,425 during the year and was distributed equally between the three State Con­ tracting Governments.

Revenue from Sale of Electricity and Water Revenue received for water supplied, and from the sale of electricity generated by the 300 kilowatt turbo-generator at Hume amounted to $273 during the year and was distributed equally between the three State Contracting Governments.

Estimates of Expenditure For 1969-1970 The following estimates for 1969-1970 have been forwarded to the four Contract­ ing Governments.

Construction Maintenance, etc.

F o r expenditure by the C onstructing A uthority for: $ $

N ew S outh W ales . . . . . . 332,900 321,000

V ictoria . . . . . . . . 22,000 Cr. 221,300

South A ustralia . . . . . . 72,000 919,300

C how illa Project . . . . . . 93,600 Cr.

M enindee L akes Storage A greem ent . . 320,000 50,000

Salinity Investigations . . . . . 50,000

D artm o u th Investigations— H ydro-G eneration . 30,000

D artm o u th D am — Design and C onstruction . 1,600,000*

TOTAL . . . . . . . | 2,289,300 1,51 1,600

* This estimated expenditure is in anticipation o f legislative amendments o f the River Murray Waters Agreement being passed to enable work to proceed on the Project from 1 January 1970.

ORGANISATION AND STAFF

The River Murray Commission consists of four Commissioners, one representative from each of the Contracting Governments, the Commonwealth Commissioner being the President of the Commission.

The Commission is not a corporate body nor is it a Constructing Authority. The President, the Hon. D. E. Fairbairn, d . f .c ., m . p ., is the Minister of State for National Development, and the Commissioners representing the States hold senior positions under their respective Governments; the New South Wales Commissioner, Mr A. F.

Reddoch being Chairman of the Water Conservation and Irrigation Commission; Mr R. A. Horsfall being Deputy Chairman of the State Rivers and Water Supply Com­ mission of Victoria, and the South Australian Commissioner, Mr H. L. Beaney being the Director and Engineer-in-Chief of the Engineering and Water Supply Department

of that State.

Construction, maintenance and operation of works are carried out on behalf of the River Murray Commission by State Constructing Authorities, namely the Depart­ ment of Public Works of New South Wales; the State Rivers and Water Supply Commission of Victoria; and the Engineering and Water Supply Department of South Australia. These organisations are in effect the Commission’s agents and their operations on its behalf are subject to the Commission’s approval.

16

705

Under the terms of the Agreement, the Commission is charged with initiating proposals for the better conservation and regulation of the waters of the River Murray. With the rapidly expanding utilisation of water from the River Murray by the States, the introduction of water from the Snowy Mountains Scheme, and the development of tributaries below Albury by the States, the regulation of the river has become very complex. These functions are carried out by the staff of the Commission.

Mr W. G. L. Harrison, Executive Engineer, retired on 7 March 1969 and was succeeded by Mr K. E. Johnson.

Mr D. J. Macleod, formerly of the State Rivers and Water Supply Commission of Victoria was appointed as Assistant Engineer in place of Mr J. M. Blainey who had resigned in January 1968. The newly created position of full time Secretary/Account­ ant has been filled by the appointment of Mr W. J. Crombie. During the year it was

agreed to advertise for a clerical assistant and this post has been filled by Mrs P. Houldsworth. Stenographic duties were carried out by Mrs M. Kaldma.

The Commission desires to record its appreciation of the satisfactory manner in which its officers have carried out their work during the year.

17

I

707

APPENDIXES

19

24869/69—5

APPENDIX I

COPY OF THE COMMONWEALTH AUDITOR-GENERAL’S REPORT ON THE EXAMINATION OF ACCOUNTS OF THE COMMISSION COMMONWEALTH OF AUSTRALIA

Auditor-General's Office. Canberra, A.C.T. 2600 2 October 1969

His Excellency, The Governor-General of the Commonwealth. Government House, Canberra, A.C.T. 2600

Your Excellency,

In accordance with the provisions of clauses 40 and 60 of the Agreement ratified by the River Murray Waters Act 1915-1966, I submit the following report upon the accounts of the River Murray Commission for the year ended 30 June 1969.

The books and accounts of the Commission have been audited with satisfactory results and I enclose copies of statements, bearing my endorsements, of the undermentioned accounts— (a) Construction Works—showing also total receipts and payments from inception to

30 June 1969. (b) Maintenance of Completed Works and Gauging Stations. (c) Administrative Expenses. (d) Revenue.

Construction Works

In compliance with clause 32 of the Agreement (as amended), cost of construction is borne equally by the contracting Governments (the Commonwealth, New South Wales, Victoria and South Australia). Each of the Governments contributed $215,000 in 1968-69 making a total of $13,488,891 from each Government since the beginning of the scheme to 30 June 1969.

In 1968-69, net payments associated with construction works amounted to $909,444. including $320,000 in pursuance of clause 9 (a) of the Menindee Lakes Storage Agreement. $276,290 on salinity investigations and $254,223 on investigations concerning the proposed dam at Dartmouth.

Since the inception of the scheme, the four Governments have contributed a total of $53,955,564. Net payments in respect of construction work have amounted to $53,746,407 leaving a cash balance of $209,157 as at 30 June 1969. Of the total payments, $262,000 ($280,000 in 1967-68) represents advances held by State Constructing Authorities to meet expenditure pending reimbursement by the Commission.

Maintenance Works

As provided in clause 33 of the Agreement (as amended), the three State Governments— New South Wales, Victoria and South Australia—are responsible on an equal basis for the cost of maintenance of completed works and gauging stations.

The Commission received a contribution of $320,000 from each Government in respect of 1968-69. Net payments on operations and maintenance during the year, including advances to State Authorities, totalled $1,002,439. At 30 June 1969, a balance of $161,245 remained in the bank account compared with a balance of $179,684 at 30 June 1968. Unadjusted advances held by State Authorities at 30 June 1969 amounted to $52,000.

20

709

Administrative Expenses

In accordance with clause 38 of the Agreement, the four contracting Governments bear equally the administrative expenses of the Commission. Contributions by each Government totalled $14,725 during 1968-69 compared with $8,000 in 1967-68.

Net payments for the year totalled $51,511 compared with $29,431 in 1967-68. At 30 June 1969, a balance of $14,639 remained in the account compared with $7,250 at 30 June 1968.

Revenue

Net revenue from rental of marginal lands and sale of water and electricity amounted to $22,030 in 1968-69 compared with $19,823 in 1967-68.

During the year, an amount of $22,098 (including a balance of $68 brought forward from 1967-68) was distributed equally among the three contracting State Governments.

Yours faithfully. (Sgd) V. J. W. Skermer Auditor-General for the Commonwealth

21

S T A T E M E N T A R iver M urray C ommission

C O N S T R U C T IO N W O R K S R eceipts a n d P ayments for Y ear E n d e d 30 Ju ne 1969

Receipts 1968-69

Cash in Bank 1 .7 .6 8 . . .

C ontributions by C ontracting G overnm ents— C om m onw ealth . . .

New S outh W ales . . .

Victoria . . . .

South A ustralia . . .

$

215.000. 00 215.000. 00 215.000. 00 215.000. 00

T otal

C ontributions 3 1 .1 .1 7 to 3 0 .6 .6 9

s $

258,601.09

13.488.890.95 13.488.890.95 13.488.890.95

860,000.00 13,488,890.95

Payments

N ew S outh W ales— A dvances (unadjusted) .

Project Investigations .

H um e D am . . .

C how illa D am . . .

Y arraw onga W eir . .

W eir an d Lock N o. 10

(W entw orth) . . .

W eir and L ock N o . 15

(Euston) W eir N o. 5 (R edbank) .

W eir N o. 7 (M aude) . .

Effluent C ontrol . .

G auging S tations . .

M enindee Lakes . .

1968-69

$

70,445.40 224.39

31,461 .22

1,452.34 37,535.17 16,502.66

320,000.00

Totals—New South Wales

V ictoria— A dvances (unadjusted) .

Project Investigations .

Salinity Investigations .

H um e D am . . .

C how illa D am . . .

D artm o u th D am Investi­

gations . . . .

Y arraw onga W eir . .

W eir and Lock N o. 1 1

(M ildura) . . .

W eir and Lock N o . 26

(T orrum barry) . .

Effluent C ontrol . .

G auging S tations . .

Cr. 18,000.00 39,852.94 276,289.58 C/-.38.402.50

O '.22,440.13

254,223.05

3,012.46

T otal

E xpenditure 3 1 .1 .1 7 to

3 0 .6 .6 9

$ $

184,000.00 156,441 .05 15,020,225.81 55,338.21

O '. 12,858.09

918,490.44

874,088.56 316,240.19 328,647.97 188,809.74

37,601.38 2 ,000 , 000.00

477,621.18 20,067,025.26

8, 000.00 186,777.02 342,873.69 15,755,850.14

454,385.48

334,223.05 1,199,596.57

736,260.32

582,424.59 68.455.92 11.454.93

T o tals— V ictoria . 494.535.40 19,680.301.71

South A ustralia— A dvances (unadjusted) Project Investigations Salinity Investigations Chowilla D am . .

N avigable Channel . W eir and Lock No. 1

(Blanchetown) W eir and Lock N o. 2

(W aikerie) W eir and Lock No. 3

(Overland Corner) W eir and Lock N o. 4

(Loxton) W eir and Lock No. 5

(Renm ark) W eir and Lock No. 6

W eir and Lock N o. 7

(R ufus River) W eir and Lock No. 8

W eir and

(Kulnine) Barrages .

Lock No. 9

Lake Victoria Storage .

G auging S tations . .

T otals— South A ustralia Cash in Bank 3 0 .6 .6 9 . .

10,271.24 30,225.09 Cr. 80,613.05

Cr. 702.71

841.29

C r.25,456.00

1,781.55 940.42

Cr.62,712.17 209,156.68

1,118,601.09 53,955,563.80 1,118,601 .09

(Sgd) R. W. BOSW ELL. (Sgd) W. J. C R O M B IE ,

Deputy C om m onw ealth Com m issioner A ccountant

The above statem ent has been examined and is in agreem ent with the accounts and records. In my opinion it is a correct statem ent o f cash transactions relating to C onstruction W orks of the River M urray Commission to 30 June 1969.

(Sgd) V. J. W. S K E R M E R ,

A uditor-G eneral for the Com m onwealth

2 O ctober 1969

70,000.00 134,300.98 30,441 .09 5,062,630.88

6,383.62

566.718.45

578,996.23

537,482.25

624,633.06

697,101.79 529.045.45

558,493.75 469,335.92

666,544.60 1,543,903.01 1,921,449.07 1,620.00

13,999,080.15 209,156.68

53,955,563.80

M A IN T E N A N C E O F C O M P L E T E D W O R K S A N D G A U G IN G S TA T IO N S

R e c eipts a n d P a y m e n t s for Y ea r E n d e d 3 0 J u n e 1969

S T A T E M E N T B

R iver M urray C ommission

1967-68 $

Receipts

$

66,086.60 Cash in Bank 1 .7 .6 8 . . .

C ontributions by C ontracting State G overnm ents— 254,000.00 New South W ales . . . . 320,000.00

230,000.00 V ictoria . . . . . 344,000.00

254,000.00 South A ustralia . . . . 320,000.00

1968-69 ; 1967-68

$ I S

179,683.76 j ! Cr. 60,000.00 46,271.00 169,676.84

! 23,900.03

984,000.00 | 18,727.36

l 20,855.81

13,309.85

| 14,500.70

16,842.75 1 31,001.84

33,897.08 13,506.42 ! 10,624.25

2,473.91 Cr. 206.56

13,833.13 12,707.90

Payments

New S outh W ales— A dvances . . . . .

M enindee L akes . . . .

H um e R eservoir . . . .

W eir and L ock N o. 10 (W entw orth) W eir and L ock N o . 15 (E uston/

R obinvale) . . . .

M urrum bidgee W eir N o. 5 (Red-

bank) . . . . .

M urrum bidgee W eir N o . 7 (M aude) Y arraw onga W eir . . . .

G auging S tations . . . .

V ictoria— H um e R eservoir . . . .

W eir and Lock N o. 11 (M ildura) .

W eir and Lock N o. 26 (T orrum barry) Y arraw onga W eir . . . .

G auging S tations . . . .

A dvances . . . . .

S outh A ustralia— N avigable C hannel . . .

G eneral . . . . .

Lake V ictoria Storage . . .

W eir and L ock N o. 1 (Blanchetow n)

$

52.984.00 144,610.81 20,235.49

20,345.53

18,336.56 17,650.77 228.00 20,301.21

18.509.05 62.062.00 21,149.14 17.366.58

13,368.73 18,000.00

777.42 5,076.33 34,287.82 24.104.58

1968-69 $

294.692.37

150,455.50

A D M IN IS T R A T IV E E X PE N S E S

R ece ipt s a n d P a y m e n t s for Y e a r E n d e d 3 0 J u n e 1969

S T A T E M E N T C

R iver M urray C ommission

1967-68 Receipts 1968-69 1967-68

s $ $ $

4.548.20 Cash in Bank 1 .7 .6 8 . . .

C ontributions by C ontracting G overn­ m ents—

7,250.01 500.00

1,880.09

8,000.00 C om m onw ealth . . . . 14,725.00 685.89

8,000.00 New S outh W ales . . . . 14,725.00 1,740.55

8.000.00 Victoria . . . . . 14,725.00

8.000.00 South A ustralia . . . .

M otor C ar Paym ents by Engineer—-14,725.00 58,900.00 262.20

20,905.25

123.19 Principal . . . . . ·â– 

10.00 Interest . . . . . . .

2,676.52 388.89 7,250.01

36,681.39 66,150.01 I 36,681.39

Payments

A udit Fees . . . . . .

A dvertising . . . . . .

F u rn itu re, F ittings and E quipm ent . .

Incidental E xpenditure . . . .

Office R equisites, P rinting and S tationery . P hotographs, P lans an d M ountings . .

Postage, T elephone and T elegram s . .

Salaries . . . . . . .

S u perannuation— E m ployer’s C o n trib u tio n . Furlough . . . . . . .

C ar and L aunch H ire . . . .

T ravelling Expenses and A llow ances . .

M iscellaneous Services— D epartm ent o f W orks C ash in Bank 3 0 .6 .6 9 . . . .

(Sgd) R. W. BOSW ELL (Sgd) W . J. C R O M B 1E

D eputy C om m onw ealth C om m issioner A ccountant

T he above statem ent has been exam ined and is in agreem ent with the accounts and records. In my opinion it is a correct statem ent o f cash transactions relating to A dm inistrative Expenses o f the River M urray Com m ission for the year ended 30 June 1969.

(Sgd) V. J. W. S K E R M E R

A uditor-G eneral for the C om m onw ealth

2 O ctober 1969

1968-69 $ 500.00 804.40

835.27 1,938.53 3,499.70 20.81 2,472.98 26,656.32

2,654.04 8,861.00 318.14 2,949.51

14,639.31

66,150.01

S T A T E M E N T O F R E V E N U E R E C E IPT S A N D PA Y M EN T S

F o r the Y ear E n de d 30 J u n e 1969

S T A T E M E N T D

RivtR M urray C ommission

M arginal Lands Collections— Com m ission A m ounts distributed to C ontracting State G overn-

i Wales

South A ustralia l in Bank 3 0 .6 .6 9

1968-69 S 158.97

7.365.80 7.365.80 7.365.80 Nil

22.256.37

(Sgd) R. W. BOSW ELL (Sgd) W. J. CR O M B IE

Deputy C om m onw ealth Com m issioner A ccountant

The above statem ent has been examined and is in agreem ent with the accounts and records. In my opinion it is a correct statem ent of receipts and paym ents relating to M arginal Lands and Buildings, Sale of Electricity and Sale of W ater for G eneration o f Electricity o f the River M urray Commission for the year ended 30 June 1969.

(Sgd) V. J. W. S K E R M E R

A uditor-G eneral for the Com m onwealth

2 O ctober 1969

RIVER MURRAY IN SOUTH AUSTRALIA

L A K E V IC T O R IA : S T O R A G E TA B L E 1968-69

APPEND IX II

i Storage 1 at end of month

Discharge | Area of

Evaporation and rainfall

I

Year and month i through

| outlet

regulator

1 Lake at

| end of

1 month

Evapora­ tion I Rainfall

Evaporation less rainfall

j Intake

i Acre feet A cre feet Acres

1

Inches Inches Inches Acre feet A cre feet

1968— J Line . . 328,700 1

July . . 466,900 10,305 26,960 1.29 0 .8 5 0 .4 4 988 149,493

A ugust . . 549,540 26,827 27,662 2.09 1.03 1.06 2,433 111.900

Septem ber . 549,000 45,294 27,660 3.16 0 .2 0 2.96 6,825 51,579

O ctober. . 552,820 36,348 27,674 4 .6 2 0.64 3.98 9,178 49,346

N ovem ber . 547,040 41,716 27,646 7.60 0 .4 4 7.16 16,506 52,442

Decem ber . 549.000 43,279 27,660 8.58 1.14 7.44 17,155 62,394

1969— Ja n u ary . 456,100 96,341 26,860 9.21 0.12 9.09 20,695 24,136

F ebruary . 424,200 77,63.3 26,420 6.28 2.24 4 .0 4 8,845 54,578

M arch . . 539.300 32,445 27,615 5.58 3.31 2 .2 7 5,076 152,621

April . . 552,820 36,704 27,674 3.82 0.05 3.77 8,691 58,915

M ay . . I 551,700 59,077 27,670 2 .2 5 ; 1.69 0.56 1,293 1 59,250

June . . | 550,350 57,571 27,665 1.27 0.24 1 .03 2,376 58,597

T otal . j 563,540 j

■

55.75 |

1

11.95 43.80 100,061 1 885,251

W A T ER F L O W IN G TO SO U T H A U S T R A L IA : 1968-69

j D is c h a rg e a t L o c k 9 a n d

1 F r e n c h m a n 's C re e k c o m b in e d L a k e V ic to r ia s to ra g e I j T o ta l

1 p a s sin g

| _

i M in im u m 1 m o n th ly

d isc h a rg e

Y e a r a n d m o n th

M a x im u m ! M in im u m M e a n I n ta k e

S to ra g e 1 a t e n d o f

M o n th

D is c h a rg e

1 M u rr a y

! flow p a st

[ L o c k 9

j to S o u th

■ A u s tra lia 1 a t L a k e

V ic to ria

u n d e r C la u s e 49 o f R iv e r

M u rra y A g re e m e n t

C u se c s A c re feet A c re feet A c re feet A c re feet A c re fee t A c re feet

1968 — Ju ly . . . 13,736 7,848 10.874 149.493 4 6 6.900 10,305 519,090 529.395 4 7,000

A u c u s t . . 11,572 6,089 8 ,0 6 6 1 11,900 549,540 26,827 384,050 410,877 94,000

S e p te m b e r . . 15.011 8.873 13,650 51,579 549.000 4 5.294 760.662 805,956 1 14,000

O c to b e r . . 7,193 2,139 3 ,8 4 0 4 9,346 552,820 36,348 186,772 223,120 114.000

N o v e m b e r . . 6,556 4.452 5.449 52,442 547.040 41.716 271,787 313,503 1 3 4,000

D e c e m b e r . . 6,092 1.702 3,743 62,394 549,000 43,279 167,731 211,010 1 34,000

1969— J a n u a r y . . 1,632 351 974 24,136 4 5 6,100

424.200

96,341 35,777 132,1 18 134,000

F e b r u a r y . . 5,652 117 2,213 54,578 77.633 68,312 145,945 134.000

M a rc h . . 5,866 2.861 4 ,3 0 7 152,621 539,300 32,445 112,212 144,657 1 14,000

7,048 3.348 5,305 58,915 552.820 36,704 256,765 293.469 94.000

6,248 3,425 4 ,6 8 6 59.250 551,700 59,077 228,853 287,930 94,000

J u n e . . . j 8,993 4,574 6,841 58,597 550.350 57,571 348,500 406,071 47.000

T o ta l . . 885,251 563,540 3,340,51! 3,904,051 1,254.000

28

717

E ST IM A T E D LOSSES BY E V A P O R A T IO N F O R RIVER M U R R A Y IN S O U T H A U S T R A L IA : 1968 69

Month

Rufus River to Wellington evaporation less rainfall

Inches Loss in acre feet

1968— July . . . . - 0 . 2 6 - 1 ,0 7 8

August . . . . 0 .8 0 3,315

Septem ber . . . 2.68 11,107

O ctober . . . . 3 .7 0 15,334

N ovem ber . . . 5.98 24,783

Decem ber . . . 6 .7 4 27,932

1969— January . . . . 8.78 36.337

F ebruary . . . . 2.48 10,278

M arch . . . . 3.21 13,303

April . . . . 3 .1 9 13,220

May . . . . 0.15 622

June . . . . 0 .9 0 3,730

38.35 158,933

The above losses have been com puted by applying the m ean o f the evaporation less rainfall readings at L ake V ictoria an d M ilang to the actual surface area o f the river between R ufus R iver an d Lock 1 and to an estim ate o f the surface area betw een L ock 1 and W ellington

based on an average w idth o f 12 chains.

APPENDIX III

H U M E R E S E R V O IR

M O N T H L Y R A IN F A L L A N D E V A P O R A T IO N (IN IN C H E S) FO R '968-69 S U M M A R Y O F M O N T H L Y E V A P O R A T IO N F O R T H E P E R IO D JU L Y 1951 TO JU N E I9ft9

Y e a r J u ly A u g . S e p t. O c t. N o v . D e c . J a n . F e b .

M a r. A p ril M ay J u n e T o ta l

E v a p o ra tio n — 1 9 6 8 -6 9 . . 0 .9 5 1 .2 6 2 .2 2 3 .1 0 4 .8 1 7 .2 3 9 .1 4 6 .0 3

4 .6 6 2 .7 5 1 .4 9 0 .9 7 4 4 .6 1

R a in fa ll— 1 9 6 8 -6 9 . . 2 .3 7 2 .9 9 0 .8 5 2 .5 5 1 .9 4 2 .4 5 0 .5 3

2 .7 4 3.91 3 .3 0 2 .6 7 0 .8 0 2 7 . 10

H is to r ic e v a p o ra tio n

P re v io u s m a x im u m . 1 9 6 1 -6 2 . . 0 .9 4 1 .4 6 2 .3 8 4 .4 6 5 .3 7 7 .5 8

7 .7 9 6 .9 7 5 .9 0 4 . 15 1.58 0 .9 8

4 9 .5 6

' P re v io u s m in im u m .

1 9 5 5 -5 6 . . 0 .8 2 1 .3 9 1 .8 4 2 .9 2 3 .9 7 5 .6 1

5 .6 9 5 .8 3 3 .6 1 1 .2 3 1 .32 1 .0 3

35 26

A v e ra g e ( la s t 18

0 .9 6 1 .3 8 2 .1 5 3 .4 9 5 .0 9 6 .9 5

8 .1 8 6 .7 3 5 .3 8 2 .9 5 1.51 1 .0 2

45 79

29

S A L IN IT Y O F T H E R IV E R M U R R A Y F O R 1968-69—T A B L E S H O W IN G A V E R A G E M O N T H L Y S A L IN IT Y E X PR E S S E D AS E L E C T R IC A L C O N D U C T IV IT Y IN M IC R O M H O S PER CM A T 25°C A N D T O T A L D ISSO L V E D S O L ID S IN PA R T S P E R M IL L IO N

APPENDIX IV

1968

S ta tio n M ile a g e J u ly A u g u s t S e p te m b e r | O c to b e r | N o v e m b e r D e c e m b e r

E .C . T .D .S . E .C . T .D .S .i E .C . T .D .S . E .C . T .D .S . E.C. 1T .D .S . E .C . T .D .S .

B e lo w H u m e

1,385 84 50 66 40 65 39 60 36, 59! 35 61 37

C o b r a m . . 1.197 70 40 70 40 50 30 5 0 1 30 70 40 50 30

T o r ru m b a rr y

80 W e ir . . 1,020 110 70 50 100 60

B a rh a m . . 945 143 86 174 105 139 83 154 92, 81 49 115 69

R ental Isla n d . 903 150 90 200 120 220 130 2 0 0 1 120 80 50 180 110

S w an H ill . 875 43C 260 530 320 420 250 320| 190 200 120 180 110

T o o le y b u c . 818 340 220 370 240 340 220 290, 180 190 120 130 150

B o u n d a r y B end . 761 34C 200 370 220 220 14C 230, 150 170| 110 160 100

E u s to n W e ir . 692 34C 200 370 220 23C 15C 230 150 170 110 140 90

R e d C liffs . 564 34C 200 370 220 27C 17C 280, 180 230 150 190 120

L o c k 9 . . 479 50C 281 300 190 310 177 360 215, 300 168 239 127

L a k e V ic to ria . 390 222 490 271 450 266 470 2 5 2 1 450 237 437 210

L o c k 6 . . 388 450 235 4 1 0 232 320 181 420 i 2 3 9 1 330 182 282 136

B erri . . 327 400 212 455 241 420 222 460 2281 435 227 35C 183

L o c k 3 . . 268 580 309 380 218 450 251 570 310 490 25^ 370 193

W a ik e rie . . 238 650 335 450 25C 490 260 540 2521 513 267 422 221

M o rg a n . . 199 720 369 4 8 0 258 470 260 600 333! 547 28( 447 227

B la n c h e to w n . 17 770 412 450 252 420 2U 530 293' 582 29< 44( 225

W a lk e r ’s F la t . 129 770 417 480 26: 375 228 500 271 570 2 9 : 472 238

M a n n u m . . 9. 900 450 540 29< 440 239 455 249 720' 356 492 242

M u rra y B rid g e . 71 770 406 730 378 470 259 455 248 650 31C 582 299

F ailem B end . 5i 840 444 735 37< 500 2721 4401 251 57C 292 589 292

G o o lw a . . 10,400 6,441 3.300 1,888 3,100 1,804 2,820 1,575' 3,250 1,73: 1,320 691

1969

January February March April

E .C . |T .D .S .i E .C . i T .D .S . E .C . T .D .S . E .C . T .D .S

58 50!

110 137 200 2001 220i

190 190 280 300

450 438 488 453

603 555 598 528

520 558 585 1,570

351 30

70 82 120 120 140 120 120 180 149 233 235 227 238 292 279 303 270 271 287 290 818

6 7 i 50 100 84 2001

220 2201 250 i 190

250; 392 452, 463

546: 5 8 3 1 707 691,

633, 599! 550 581| 609 1,770

52' 501

1101 204! 2001 300!

220 170 170

160| 220

210 340!

241 ^

261 2 8 4 1

40 30

60 51 120 130

140 160 120

344 480, 5 7 6 1

3101 6 0 8 I

360 681

361 712

330 788,

3051 721 302, 7051 310| 6 8 9 1

318! 724,

9551 l,8 0 0 l

31 30

70 122 120 180 150

110 110 140 193

196 263 317 320

372 376 4 1 0 382

363 365 386 999

58 50

110 104 280 330 290

230 220 270 335

411 328 372 4 5 0

510 567 590 706 796 751

806 1,880

E .C T .D .S . E .C . I T .D .S .

35 30

70 63 170 200 180 150 140 170 196 224 185 210 250 271 307 323 387 429 405 422 996

53! 50'

110 192 380, 420: 440: 250 250, 250 2 9 2 1

3931 377, 381

4 0 0 481 520 522

503' 452 538

630 1,150

32 30

70 115 230 250 280

160 160 160 165

217 196 207 212

260 279 272 271

247 284 306 591

60, 70|

140 110 140 350 220 250

270 300 402 386

372 457 432 541

479 592!

4831 5 1 0 1 5391 1,020

36 40

90 66 90 210

140 160 170 190 209

198 198 247 245 291 255 305 292

260 269 289 542

Note 1 Salinity figures for stations from H um e D am to Red Cliffs are from weekly and in m ost cases m ore frequent readings, and are based on electrical conductivity determ inations which are converted to T .D .S . parts per million. T he factor for conversion from E .C . to T .D .S . varies fro m S tate to State between 0 .5 2 and 0 .6 4 .

Note 2 F o r those stations dow nstream o f Lock 9 sam ples for analysis are collected on the second M onday each m o n th . S am pling is a t 4 feet below w ater surface in the centre o f the stream . Analysis o f sam ples is carried o ut in a central lab o rato ry and com plete analysis data, from w hich these figures have been extracted, are available. In addition, daily sam ples from Lock 9, M organ and M annum are tested in the central lab o rato ry for dissolved solids by conductivity tests and chlorides by titratio n . Results of field estim ations by silver nitrate at a num ber o f stations are also available and sam pling is usually daily o r weekly.

RIVER MURRAY WATER QUALITY

1968 ------- 1969

6 0 0

5 0 0

Ϊ 4 0 0

£

300

μ 200

100

N O T E T O T A L D I S S O L V E D S O L I D S I N P A R T S P E R M I L L I O N

B A S E D O N E L E C T R O - C O N D U C T I V I T Y D E T E R M I N A T I O N S

o T O R R U M B A R R Y 1

_____ i

P U M P

Γ j]

u •V’v·

! \ 4 I 1 <" λ Λ J V v J i / vA r' Λ j,

■!— -

·>

i - ' o ^ ' G \ J e c u 1

J U L Y A U G . S E P T . O C T . N O V . D E C J A N . F E B . M A R C H A P R I L M A Y J U N E

1968 1969

R I V E R M U R R A Y W A T E R Q U A L I T Y

1968-69 94738

y /

31

NEW SOUTH WALES D e p a r t m e n t o f C o n s e r v a t i o n

PROTECTION OF THE NEW SOUTH WALES PORTION OF THE HUME CATCHMENT AREA

REPORT TO THE RIVER MURRAY COMMISSION FOR THE YEAR ENDED 31 MARCH 1969

A PPEND IX V

In terms of Clause 28 (2) of the amended River Murray Agreement, this, the Twenty-first Report, is presented by the State of New South Wales to the River Murray Commission. This report describes the condition of that part of the catchment of the Hume Reservoir within New South Wales, briefly outlines the protection works carried out during the year ended 31st March 1969, and indicates the works and measures proposed for the ensuing twelve months.

Part A— C ondition of the catchment and works undertaken during the year

1. Land Management Very good rainfall over the catchment during April and May 1968 resulted in a fair grass cover in the beginning of winter. The early rains were followed by light to moderate falls. The grass cover during the summer was fair and a very early autumn break combined with extremely mild conditions resulted in the best grass cover ever recorded.

There was a considerable increase in the area of hill country top-dressed with super­ phosphate, an activity which was limited last season due to adverse seasonal conditions. The rabbit population in the catchment area has shown a general increase. However, a vigorous ‘1080’ poisoning programme and the incidence of myxomatosis are assisting to keep the numbers in manageable proportions.

The effects of drought on areas adjacent to the Kosciusko National Park resulted in the continuance of illegal grazing on those areas within the Park previously withdrawn from grazing. However, the appointment of additional ranger staff enabled impounding operations to be intensified and stock have since been withdrawn.

Several requests were received by the National Parks and Wildlife Service early in 1968 that relief grazing be permitted in the Kosciusko National Park. The Minister for Lands subsequently granted permissive occupancies on areas below 4.500 feet elevation for one year only, under the same conditions as previously, pending further investigations.

In June 1968 Dr Grahame Edgar, formerly Director-General of Agriculture in New South Wales, was appointed by the Minister for Lands to investigate the whole question of controlled grazing in the Park. (Dr Edgar submitted his findings to the Minister in May 1969.) During the year, the Department of Lands referred to the Catchment Areas Protection Board, as required by the Crown Lands Consolidation Act, eight proposals for disposal of Crown land areas totalling 690 acres within the catchment area. Where necessary, appropriate erosion mitigation conditions were recommended in the interests of catchment protection.

2. River Improvement Work Stream clearing and bank protection works along section of the Swampy Plain and the Upper Murray Rivers were continued in accordance with the Agreement between the State Rivers and Water Supply Commission of Victoria, the New South Wales Water Conservation and Irrigation Commission and the Snowy Mountains Hydro-Electric Authority.

Following completion of the initial programme of works in December 1966, at a cost of $213,244, further improvement work has been carried out on these rivers at an estimated total cost to June 1969 of $96,000. The work will reduce the amount of silt and debris reaching the Hume Storage.

Works for the control of effluent flows from the Upper Murray River arising from discharges from the works of the Snowy Mountains Authority have been completed at a cost of $10,324.

32

3. Soil Conservation The Soil Conservation Service has continued to provide extension services to landholders within the catchment area. Technical advice and assistance were given to 28 landholders, nine of whom had not sought assistance previously. Farm plans were completed for 5

holdings and one further request for this type of assistance was received. Farm plans have now been prepared for a total of 26 properties, either wholly or partly within the catchment area.

A smaller amount of structural soil conservation work was undertaken during the period under review due to wet conditions during the winter. Fifteen landholders undertook such works by hire of plant from the Soil Conservation Service. Two soil conservation conferences and associated field inspections were held and attended by representatives of the Soil Conservation Service and the Kosciusko National Park.

As previously, the Soil Conservation Service organised and supervised reclamation of badly eroded areas on the Dividing Range near Mount Carruthers and the Blue Lake.

Works of the Snowy Mountains Hydro-Electric Authority Liaison between the Soil Conservation Service and the Snowy Mountains Hydro-Electric Authority has continued in connection with the various Authority restorative works within the tributaries of the Murray River and its catchment, particularly in the Geehi and Eucumbene areas and along the 30 kV transmission line between Khancoban and Talbingo.

Maintenance of roads, transmission line tracks, aqueducts and reclaimed works areas, including seeding, fertilising and mulching, was carried out as required. Reclamation work on the Cascade Creek Aqueduct has been completed. Such work is virtually complete in the Geehi Dam area, including the haul road, camp area and rock quarry while work is in progress on the Geehi Aqueduct.

Conservation and drainage has been completed on the pipeline bench and valve house area at Murray 2 Power Station. Restoration of the stores and works area is proceeding.

4. Forestry Matters Infestation by Phasmatids (Dilymuria Violescens) The year 1968-69 was a normal ‘plague" year, and defoliation was more intensive and somewhat more extensive than in the last ‘plague" year 1966-67.

The apparent worsening of the situation is thought to be only temporary and probably due to an exceptionally favourable hatching season with a lower mortality rate in the infant stages. It is considered that outbreaks are generally on the downward trend and will continue to follow that trend. It is significant, in this regard, that no new outbreaks have been noted and that some of the older infestations have either disappeared or decreased considerably.

5. Fire Protection (a) Organisation and Works _ During the year, facilities for the detection and control of bush fires weie maintained and improved, under the Hume-Snowy Bush Fire Prevention Scheme. Expenditure now totals approximately $531,000, a considerable portion of which has been used for the protection of

the upper part of the Hume Catchment. Maintenance and clearing work was undertaken on 245 miles of existing fire trails in the catchment area. Many trails had to be cleared several times due to debris brought down by wind, storms and rain.

(b) 1968-69 Fire Season The fire season was very mild and even though some high temperatures and strong winds were experienced seasonal conditions were such that the fuel vvus not <-r\ enoiiL to cause any undue concern. Between December and March the fne rating was recon. cc as

very high on 3 days, high on 26 days, moderate on 49 days and low on 43 days. - All major lookouts were manned during the fire season. Fires were spotted and reported by commercial aircraft and by Snow v Mountains H\ drt Electric Authority aircraft during scheduled flights. No charter flights were necessary 1 unnr the season.

33

Once again close liaison was maintained between the Fire Control Officer of the Hume- Snowy Bush Fire Prevention Scheme and the Commonwealth, State and local organisations concerned, and the landholders.

6. General Close liaison has continued between all organisations interested in that part of the Hume Catchment in this State. Further protection against erosion and forest damage has beeen effected by the installation of erosion control works, fire prevention and control measures, rabbit eradication and pasture improvement, while necessary attention is being given to reclamation, restoration and vegetation.

P a r t B—W o r k s a n d m e a s u r e s p r o p o s e d f o r 1969-70

Indications are that most of the regular co-operators with the Soil Conservation Service will continue erosion control programmes on their properties and it is expected that some addi­ tional landholders will commence soil conservation work during 1969-70. The Snowy Mountains Hydro-Electric Authority’s protective works will be associated with the Geehi Dam, Geehi Aqueduct and Murray 2 project.

The Management Council of the Hume-Snowy Fire Prevention Scheme will continue to review the facilities for fire detection and control with associated communications systems. Work will continue on the extension and maintenance of access tracks and fire trails. I wish to express my appreciation to the organisations which have co-operated by supplying information required for the compilation of this report.

T . M c K e o n

Under Secretary

Department of Conservation, 13 October 1969

VICTORIA

S o i l C o n s e r v a t i o n A u t h o r i t y

REPORT ON THE CONDITION OF THE VICTORIAN SECTION OF THE HUME CATCHMENT FOR THE YEAR ENDED 31 MARCH 1969

At the commencement of this period the catchment was still affected by the prolonged drought of 1967. It was not until late April that significant rain was received and during May Tallangatta in the lower reaches of the catchment had recorded 7i inches. To enhance the prospects of carrying livestock through the winter with practically no reserved fodder many farmers ploughed areas for resowing but due to constant but light rainfall were unable to sow crops or pasture.

In the upper catchment in the Omeo district weather conditions continued dry producing yet another year of sub-average rainfall. Pastures remained short and heavily grazed until the late summer rains in 1969. Throughout the whole catchment these early rains with adequate follow up rainfall have produced an excellent start to the 1969-70 period.

The late February and March rainfall at Tallangatta has resulted in 38.60 inches (av. 32.25 inches) being recorded for the twelve months ended 31.3.69. As a result of the 1967 ‘drought’ many farmers were forced to sell or seek agistment for livestock or buy supplementary fodder. With the good season which followed most properties were understocked and farmers suffered economic hardships by having to replace stock on an inflated market, or through the expense incurred by purchase of fodder or by agistment.

With many farms being understocked and the good season which followed, and with prospects of a further good season, the catchment in general is moderately grazed and a good ground cover exists. However because of economic hardship brought about by the drought and a recent rise in the price of superphosphate the use of this fertiliser is lower than in previous years.

34

The past dry season had caused a migration of rabbits from the dry forested areas down onto lower country with its more plentiful water. Conditions during early 1969 were ideal for the breeding of mosquitoes and the spread of myxomatosis. As a result the Lands Department estimates that the rabbit population was reduced by 60% by the disease with a

further reduction due to its poisoning campaigns and by landholders fumigating and destroying burrows. This must be considered one of the best seasons for the effects of myxomatosis since its introduction in the early 1950s.

The Department of Crown Lands and Surveys has advised that approximately 670 acres of Crown Land were granted under improvement purchase lease; this represents only 30% of the total area applied for. The balance of 70% was not considered suitable for agriculture because of potential erosion hazard, or being required for the Forests Commission’s afforestation programme.

Soil C onservation and E rosion C ontrol

G roup C onservation A rea s

The constitution of these areas was explained in last year's report. Only a small amount of work was done to complete the erosion control commitment of the Soil Conservation Authority in the Sugarloaf G.C.A. at Corryong and the Sheepstation Creek G.C.A. near Benambra.

In Day’s Creek No. 1 Group Conservation Area situated in the Livingstone Creek catchment south of Omeo, erosion control works have been practically completed. Under the Group Conservation Area agreement the landholders are required to carry out specified ‘productive’ work such as pasture improvement, subdivisional fencing and farm dam

construction and this work is also under way.

T he sedim ent fro m this once badly eroding pally >c».s disclaim edf ^ , / s i ^ /. /T/ ' /////»/ί-Vir

W ith co-operation o f the la n d h o ld e r, the Soil C m ise rv a ta m ^ a .^ ,o ,^ . ^ c sw h ,ishnu,nl o f , m ..t

im provem ent, diversion o f w ater away fr o m the · ■ - . ^ ’

to finally achieve stabilisation

35

The Day’s Creek catchment is situated in an area of high erosion hazard and erosion of the dispensable clay soils yields much of the ‘yellow’ turbidity noticed at times in the Mitta Mitta river. Any improvement of this catchment will assist in reducing the incidence of these flows and the yield of sediment into Livingstone Creek.

Erosion Due to the lower stocking rates following the dry period and the subsequent good season, ground cover has had a significant effect on reducing run-off velocities. Gully erosion has been arrested to a marked degree because of the growth of plants which arrest the movement of sediment within the gullies.

The high intensity rainfalls received in places during March 1969 caused some sheet erosion particularly on fallows and newly sown areas. Reports were received and investigated of sediment being deposited onto roads and into streams. Roadside erosion, particularly beside the new alignment of the Omeo Highway south from Omeo to the Tongio Gap, has resulted in increased siltation of Day’s Creek. The Country

Roads Board has commenced stabilisation work but it has not yet reached the recently constructed section comprising high fills and deep cuts. The Country Roads Board has prepared the batters for sowing down, along the Upper Kiewa Valley Road Extension which crosses the Bogong High Plains and joins the Omeo Highway near Shannonvale. The sowing down of these batters will be done mechanically during April 1969 under a cover of hay mulch held in position by bitumen.

A m ulch o f teased straw secured by a light bitum en spray has been m echanically applied to

roadside batters on the B ogong H igh Plains. Subsequent seed a n d fertiliser applications have pro m o ted a vegetative cover to give protection to the batters. The w ork is being done by the

C ountry R oads B oard

Sections of batters beside the Murray Valley Highway in the vicinity of Walwa where the road had recently been realigned through light granitic sand terraces, were sown down by the Country Roads Board using seed, fertiliser and bitumen emulsion.

General maintenance and minor realignment of roads have been carried out by all Shi i es.

36

Advisory Service

The advisory service provided by the Soil Conservation Authority has continued to be in demand by landholders, Shire Councils, or Government Departments that operate within the catchment. Over 260 inspections were made during the year for individuals and public bodies.

Requests for advice on larger dams to be used for irrigation and for layouts for flood irrigation of land are attended to by the Farm Water Supply Branch of the Authority. Within the catchment nine inspections were made and advice tendered on eight dam sites which would impound a total of 153 acre feet of water at a total estimated cost of 537,500. One irrigation layout was surveyed and designed over 7 acres.

Mining

All active mining activities within the catchment, with the exception of the Glen Wills Goldfields, ceased operation within the period. Glen Wills Goldfields continue to operate deep lead mining and cart the ore to their battery at the junction of the Big River and Glen Wills Creek for treatment. The mine is operating at a reduced rate.

The large tin mining venture that was working at Walwa has, at the present time, closed down. Likewise, other small sluice mines have ceased working and have in consultation with the Mines Department and Soil Conservation Authority left their areas in a satisfactory state.

Exploration is still active, however, with gold and tin being the main minerals sought. One case was referred to the Authority by the Mines Department under the new Extractive Industries Act where a syndicate had applied to open a marble quarry in the Limestone Creek area.

he bare erosion p a v em e n t that has d eveloped at M t H o,I,am m eans 'bat same v long o n those areas as on the patches o f vegetation. T he severe sp o s c mIpn, t ,U m an

lakes recovery very slow and even the Snow G u m ( - pauct f f J

,11. T he prim e fa n e,io n o f this area is water p ro d u e n a n and o tlu r fo rm s o f land

regulated to allow fo r recovery o f vegetation

37

A l p i n e Areas

Due to cold conditions and a delayed thaw following a year of extremely heavy snow falls the summer grazing season was opened several weeks later than normal. With adequate feed still available on the lower land the number of cattle taken to the alpine country was lower than usual.

Numerous small rainfalls received at frequent intervals produced a good growth of vegetation on the high plains. This combined with adequate watering points reduced stock concentrations and the grazing season ended with the country in good condition.

The Hotham Heights area is gaining popularity as a ski resort with several new lodges, and tourist facilities being provided. A new chair lift about half a mile long is being constructed from the Alpine Road to cross Swindlers Creek. This will have a lift of 750 feet and will open up a vast expanse of snow field.

F orestry and F ire P rotection

The Forests Commission of Victoria has supplied the following information on its activities within the Hume Catchment.

Utilisation of mature timber stands followed a pattern common in past years. Clear felling of valuable alpine ash (Eucalyptus delegatensis) stands continued on an annual volume allocation basis. In all, 900 acres of dear felling was achieved, and this area will be aerially sown with alpine ash seed during the 1969 autumn. Mixed species were utilised on a selection basis and few stems are removed during logging operations.

Clearing for conifer plantation establishment was continued at Koetong in the Jingellic Block, north of the Tallangatta-Corryong Road. Burning of 200 acres of this material was completed during the spring of 1968 as a safety measure to protect private property over the 1968-69 summer. The remaining area of 1,800 acres was burnt during February and early March 1969. This 2,000 acres will be planted during the coming winter with stock grown at the Shelley nursery.

The fire season was shortened by rain in February and subsequent relatively low tempera- lures and high humidities. Follow-up rains occurred during March. The fires which occurred were successfully controlled, the largest and most difficult being one started by lightning on 13.1.69 near Eustace’s Gap, Parish of Mowamba. Fires totalled thirteen. Fifteen acres of forest were burnt and 9 acres of private property. Of the total, five fires were caused by lightning. Aerial reconnaissances were carried out on two occasions on days following thunderstorm activity.

During October 1968, aerial ignition from a helicopter, for the purpose of reducing heavy fuel concentrations was accomplished on two forest areas in Tallangatta Forest District. A total of 4,000 acres was successfully fuel reduced.

Fire protection access was improved by the construction of a further 41 miles of roads and jeep tracks. Access tracks over a distance of 55 miles were improved by re-routing and grading.

C onclusion

Landholders generally are becoming more aware of the necessity for conservation in their farming procedures, and their co-operation in the protection of catchments such as the Hume Catchment is more readily obtained. Government Departments and Shires are becoming more aware of the desirability of revegetating all new earthworks, and a considerable improvement in the state of road batters and borrow pits over the last few years is evident. All these matters have a big influence on improving the condition of the Catchment.

P. .1. McCallum Secretary

Soil Conservation Authority 25 July 1969

38

APPENDIX VI

GAUGING OF THE RIVER MURRAY AND ITS TRIBUTARIES 1968-69

Introduction

In this year’s Annual Report, the Statements furnished by the Governments of New South Wales and Victoria in respect of gaugings made at various River Murray and tributary stations have been presented in order proceeding from upstream to downstream.

The Gauging Authority responsible for each of the following stations has been identified by the use of the letter ‘Ν’ for New South Wales, ‘V’ for Victoria.

River Murray at Jingellic ( V) M itta M itta River at Tallandoon ( V)

M o n th

D s c h a r g e in c u b ic feet

p e r s e c o n d D is c h a r g e

f o r

m o n th in

a c re fee t M a x im u m M in im u m M e a n

J u ly 1968 3,629 1.713 2,085 129,280

A u g u s t . 12,810 1,911 5,631 349,1 14

S e p te m b e r . 6,874 2,898 3 .7 2 0 2 2 3,214

O c to b e r . 16,240 3,270 6,562 4 0 6.842

N o v e m b e r . 8 ,3 4 0 2.504 4,408 2 6 4 ,4 9 0

D e c e m b e r . 2,748 1.261 1,883 116,750

J a n u a r y 1969 2,168 641 1,075 6 6,654

l -e b r u a r y . 1,330 524 679 3 8,034

M a rc h 3,778 531 1,280 7 9 ,3 9 0

A p ril . . 3,592 816 1.828 109,702

M ay . . 4 ,6 9 7 1,290 2,061 127,758

J u n e . . 6,214 1,658 3,517 2 1 1 ,0 4 6

T o ta l fo r th e y e a r 2 ,1 2 2 ,2 7 4 a c re f e a t

M o n th

D is c h a r g e in c u b ic feet

p e r s e c o n d D is c h a rg e

fo r

m o n th in

a c re feet M a x im u m M in im u m M e a n

J u ly 1968 . 785 592 660 4 0,904

A u g u s t . 7 ,0 0 0 780 2,903 179,990

S e p te m b e r . 3 ,8 8 0 1,528 2,105 126,320

O c t o b e r . 14.830 1,879 4 .4 6 9 2 7 7,100

N o v e m b e r . 3 .9 2 0 1,360 2,199 1 3 1,946

D e c e m b e r . 1,450 592 950 58,898

J a n u a r y 1969 885 268 459 28,438

F e b r u a r y . 468 216 279 15,620

M a r c h . 1,480 164 349 21,660

2 ,2 5 0 312 573 34,404

1.624 340 561 34,794

3,592 680 1,141 6 8,458

T o ta l f o r th e y e a r 1,018,532 a c re fe e t

Tallangatta Creek at Bullioh ( V) River Murray at Hey woods (TV)

M o n th

D i s c h a r g e in c u b ic fee t

p e r s e c o n d D is c h a rg e

M o n th

D is c h a r g e in c u b ic fee t

p e r s e c o n d D isc h arg e

fo r

M a x im u m M in im u m M e a n

m o n th in

a c re fe e t M a x im u m M in im u m

m o n th in

a c re feet

J u ly 1968 . 123 57 72 4,438 J u ly 1968 . 962 19 90 5,560

A u g u s t . 1,723 91 355 22,006 A u g u s t . 678 26 72 4,480

S e p te m b e r . 4 0 6 78 141 8,458 S e p te m b e r . 2 ,1 8 0 1 6 .8 665 39,900*

O c to b e r . 1.085 112 232 14,386 O c t o b e r . 11,258 33 3.118 193,000*

308 62 114 6,826 N o v e m b e r . 9,555 2,348 5,431 326,000*

D e c e m b e r . 83 31 47 2,892 D e c e m b e r . 4 ,0 2 0 2,496 3,491 216,000*

J a n u a r y 1969 36 10. 1 21 1,306 J a n u a r y 1969 8,690 3,648 6,683 414.000

342.000 324.000 153.000

F e b r u a r y . 35 7 . 0 1 4 .5 810 F e b r u a r y . 7,650 4,178

5,231 2,543

M a rc h . 1,090

567

5 .3 31

36 49

2,233 2,942

M a r c h . 8,383

4 ,8 7 2

2,570 1.356

486 36 64 3,968 3 ,5 8 0 64

J u n e . . 4 9 4 | 71

T o ta l f o r th e y e a r 77,487

120

a c re fe e t

7,222 J u n e . . 242 100 lo u

* R e c o m p u te d .

T o ta l f o r y e a r 2 ,0 8 8 .7 5 0 a c re feet

Kiewa River at Mongans Bridge ( V) Yackandandah Creek at Osbornes Flat ( I )

M o n th

D i s c h a r g e in c u b ic fee t

p e r s e c o n d

M a x im u m M in im u m ! M e a n

D is c h a rg e fo r m o n th in

a c re fee t

J u ly 1968 . 860 204 4 6 4

A u g u s t . 2,350 242 913

S e p te m b e r . 1,540 307 9 3 0

O c to b e r .

N o v e m b e r .

5,720 923 2,074

4 ,5 2 0 963 1,605

D e c e m b e r . 1,065 180 646

J a n u a r y 1969 F e b r u a r y .

601 341

68 62

214 134

M a rc h . 782 57 207

A p ril . . 1,085 73 349

1,420 100 344

1,090 148 459

T o ta l f o r th e y e a r 5 0 9,578 a c re fee t

2 8,776 56,594 55,812 128,568 96,288 4 0,076

13,278 7,490 12,828 20,958 21,358 27,552

J u ly 1968

A u g u s t S e p te m b e r O c to b e r N o v e m b e r D e c e m b e r J a n u a r y 1969

F e b r u a r y M a r c h .

D is c h a rg e in c u b ic feet

p e r s e c o n d

M a x im u m M in im u m M ean

192 690 154 890

106 92 1 5 .' 34 28 128 151 106

26 62 39 42

20 13 5 .7

3 .9 5 .7

9 .5 1 1 .9 1 7 .7

63 148 64

87 35 21 10.2

8 . 9

I I . 1 16.4

T o ta l f o r th e y e a r 31,359 a c re feet

D is c h a rg e fo r m o n th in

a c re feet

3.928 9,202 3,814 5,416 2.096

1.286 634 499 6 8 6 98 I 1.343 1.474

39

G auging of the R iver M urray and its T ributaries— continued

Kiewa River at Kiewa and Overflow ( V) River Murray at Doctors Point (N)

M o n th

D is c h a r g e in c u b ic fe e t

p e r s e c o n d D is c h a r g e

f o r

m o n th in

a c re fee t

I

M a x im u m j M in im u m 1 M e a n

J u ly 1968 . 1,046 313 I 561 34,785

A u g u s t . 2,487 509 1 1,198 74,291

S e p te m b e r . 1,540 706 1,015 60,973

O c to b e r . 4,706 1,026 2 ,0 5 5 127,420

N o v e m b e r . i 3,146 984 1,645 98,685

D e c e m b e r . 987 954 i 526 32,609

J a n u a r y 1969 519 110 228 14,155

F e b r u a r y . 328 68 160 8,980

M a r c h . . 911 80 220 13,628

A p ril . . 937 139 380 22,786

917 193 390 24,204

J u n e . . 886 ! 292 524 31,468

T o t a l f o r th e y e a r 5 4 3 ,9 8 4 a c re fe e t

D is c h a rg e in c u b ic fee t _ . ,

p e r s e c o n d j D is c h a r g e

|

iM a x im u m ) M in im u m M e a n

I m o n th in

1 a c r e fe e t

J u ly 1968 . 1,343 505 851 5 2 ,8 0 0

A u g u s t . 2,978 806 1,532 9 5 ,0 0 0

S e p te m b e r .

O c to b e r .

3 ,3 5 0 14,222

988

2,160

1,881 5,256

1 1 3.000 3 2 6 .0 0 0

N o v e m b e r . 12,708 4 ,0 8 0 7,684 4 6 1 ,0 0 0

D e c e m b e r . 4 ,6 6 3 3,062 4,186 2 6 0 ,0 0 0

4 3 4 ,0 0 0 J a n u a r y 1969 9 288 3,794 6,975

F e b r u a r y . 8,036 4,662 6.477 3 6 2 ,0 0 0

M a r c h . . 8 ,5 8 7 , 3,017 5,614 3 4 8 ,0 0 0

A p ril . . 4 ,9 1 4 1,730 2 ,9 3 0 1 7 6,000

3,986 346 1.410 8 7 ,4 0 0

J u n e . . i 1,124 | 462 715 4 2 ,9 0 0

T o t a l f o r th e y e a r 2 ,7 5 8 ,1 0 0 a c re feet

River Murray at Corow a (TV) Fifteen Mile Creek at Greta South (V)

M o n th

D is c h a r g e in c u b ic fee t

p e r s e c o n d D is c h a rg e

M a x im u m I M in im u m M e a n

m o n th in

a c re fe e t

J u lv 1968 . 1,495 602 941 58,400

A u g u s t . 3,279 720 1,673 104,000

S e p te m b e r . 3,081 1,120 1,853 111.000

O c to b e r . 11,440 2,090 4 ,1 4 2 2 5 7,000

N o v e m b e r . 11,750 4,582 7,805 4 6 8.000

D e c e m b e r . 5,880 3,270 4 ,3 1 2 267,000

J a n u a r y 1969 8.100 3,144 6 ,4 7 7 4 0 2,000

F e b r u a r y . 7,760 5,388 6,521 365,000

M a r c h . . 7,586 3 ,5 (0 5,598 347,000

A p ril . . 4 ,7 9 0 2,079 3,104 186,000

3,615 540 1,556 96,500

J u n e . . 1,200 593 842 50,500

T o ta l f o r th e y e a r 2,712 4 0 0 a c re fee t

M o n th

D is c h a rg e in c u b ic fee t

p e r s e c o n d i D is c h a r g e

f o r

m o n th in

a c re fe e t

. 1 . .

M a x im u m M in im u m M e a n

J u ly 1968 . 194 50 95 5,868

A u g u s t . 801 138 253 15,670

S e p te m b e r . 239 68 117 6 ,9 9 0

O c to b e r . 1,028 69 230 14,274

N o v e m b e r . 181 48 77 4 ,5 9 2

D e c e m b e r . 94 26 I 36 2 ,2 6 0

J a n u a r y 1969 28 4 1 1 .7 728

F e b r u a r y . 33 1 .6 6 .7 374

M a r c h . . 45 2 .5 1 3 .9 864

30 9 . 8 ; 1 4 .9 897

83 11 18.8 1,163

J u n e . . 86 21 1 31 1,856

T o t a l f o r th e y e a r 5 5 ,5 3 6 a c r e feet

Ovens River at Wangaratta. Includes Yellow Creek (V) River Murray at Yarrawonga (TV)

T o ta l f o r th e y e a r 1,379,140 a c re feet

M o n th

D is c h a r g e in c u b ic fee t

p e r s e c o n d 1 D is c h a rg e

fo r

J m o n th in

a c re fee t

M o n th

D is c h a r g e in c u b ic fe e t

p e r s e co n d D is c h a rg e

f o r

m o n th in

a c re fee t M a x im u m j M in im u m M e a n M a x im u m M in im u m M e a n

J u ly 1968 . 2,810 1,334 1,833 1 13.660 J u ly 1968 . 4 ,4 1 6 860 2 ,1 7 9 135,000

A u g u s t . 13,348 2,114 6,532 404,992 A u g u s t . 15,874 884 7,018 4 3 5 ,0 0 0

S e p te m b e r . 7.636 1,820 3,497 209,798 S e p te m b e r . 11,604 1,033 3.466 2 0 8 ,0 0 0

O c to b e r . 16,164 1.935 5,172 320,632 O c to b e r . 13,760 2,232 7,155 4 4 4 ,0 0 0

N o v e m b e r . 3,432 1 1,169 2,048 122,882 N o v e m b e r . 1 1.954 3,504 8,181 4 9 1 ,0 0 0

D e c e m b e r . 1.186 53 7 787 4 8,780 D e c e m b e r . 4 .6 7 9 3,152 3,466 2 1 5,000

J a n u a r y 1969 553 77 242 14,990 J a n u a r y 1969 5 ,5 1 0 3,360 4 ,1 9 0 2 6 0 ,0 0 0

F e b r u a r y . 608 101 166 9,250 F e b r u a r y . 7 ,8 1 0 3,882 1 4 ,9 8 5 2 7 9,000

M a rc h . . 99b 95 332 20,618 M a rc h . 7,851 3.146 4 .6 9 7 2 9 1 .0 0 0

A p ril . . 795 285 509 30,524 A p ril . . 6,478 2,020 , 2 .8 6 9 172,000

1,079 274 461 28,606 4 ,6 8 0 1.510 2 ,5 4 4 158,000

J u n e . . 1 2,187 531 907 54,408 J u n e . . 6,034 1.426 l 2 ,8 1 2 169,000

T o ta l f o r y e a r 3,257,000 a c r e fee t

River Murray at Tocumwal (V) Edward River at Offtake (N )

M o n th

D is c h a rg e in c u b ic fe e t

p e r s e c o n d D is c h a rg e

fo r

M o n th

D is c h a r g e in c u b ic fe e t

p e r seco n d D isc h arg e

for

M a x im u m M in im u m M e a n

m o n th in

a c re feet ; M a x im u m M in im u m M e a n

m o n th in

a c re feet

J u ly 1968 . 4,264 1,152 2,491 154,468 J u ly 1968 . 552 90 327 20,284

A u g u s t . 15.423 1.146 6,959 431,464 A u g u s t . 772 86 557 34,520

S e p te m b e r . 10.362 1,242 3.913 234,796 S e p te m b e r . 768 126 408 24,466

O c to b e r . 12,588 2,060 6,412 397.570 O c to b e r . 772 237 561 34,804

N o v e m b e r . 1 1.608 6.128 8,524 51 1,464 N o v e m b e r . 827 702 788 47.282

D e c e m b e r . 4 ,3 0 0 3,018 3,301 204,666 D e c e m b e r . 750 403 465 28,854

J a n u a r y 1969 4,800 3,376 4,138 256,582 J a n u a r y 1969 I 693 430 559 34,682

F e b r u a r y .

M a rc h .

7.216 4.086 5,198 291,066 F e b r u a r y . 865 582 723 40,502

7,540 3,484 4.879 302,524 M a rc h . 905 582 703 43,612

5,380 2,060 3,094 185,628 A p ril . . 828 260 4 9 4 29,624

4 .6 3 0 1,533 2,382 147,692 711 146 2 9 6 18,372

26,798 J u n e . . ; 5,875 , 1.470 3,147

T o ta l f o r th e y e a r 3,306,730 a c re feet

188,810 J u n e . . 885 ! 122

T o ta l f o r th e y e a r 383,80

4 4 7

a c re fee t

40

729

G auging of the R iver M urray and its T ributaries— continued

Gulpa Creek below Regulator (N ) Escape into Edward River at Mulwala Canal (TV)

M o n th

D is c h a r g e in c u b ic fe e t

p e r s e c o n d D is c h a r g e

f o r

D i s c h a r g e in c u b ic fee t

p e r s e c o n d D is c h a rg e

M a x im u m 1 M in im u m M e a n

m o n th in

a c re fe e t M a x im u m M in im u m M e a n

m o n th in

a c re feet

Ju ly 1968 . 311 48 173 10,716 J u ly 1968 . 114 1 11 τ τν Γ

A u g u s t . 4 5 2 42 320 19,868 A u g u s t . 14 0 1 S e p te m b e r . 4 5 2 46 225 13,510 S e p te m b e r . 1.039 1 429 25,754 O c to b e r . 4 5 2 109 312 19,350 O c to b e r . 511 1 1 195 N o v e m b e r . 458 386 4 4 0 2 6 ,4 2 4 N o v e m b e r . 76 2 31 1.872 D e c e m b e r . 4 0 4 1 14 228 14,106 D e c e m b e r . 53 0 23 1,402 J a n u a r y 1969 200 100 154 9 ,5 6 4 J a n u a r y 1969 149 1 35 2.184 F e b r u a r y . 380 141 243 13,596 F e b r u a r y . 117 9 49 2,748 M a rc h . 4 0 4 135 235 14.550 M a r c h . 349 0 79 4.885 207 100 130 7,784 A p r il . . 298 3 66 3.982 1 19 50 75 4,648 4 3 2 6 179 1 1,126 J u n e . . i 330 35T o t a l f o r t h e y e a r 160.34104 2 a c r e fe e t6,226 T o ta l f o r th e0 y e a r 66,962 a c re fee t130Campaspe River at Rochester ( V) Goulhurn River at McCoys Bridge ( V)M o n thD is c h a r g e in c u b ic fe e t p e r s e c o n dD is c h a r g e f o r m o n th in a c re fee tM o n thD is c h a r g e in c u b ic feet p e r s e c o n dD is c h a rg efo rm o n th in a c re feet M a x im u m 1 M in im u m M e a n M a x im u m i M in im u m M e a nJ u lv 1968 1,550 0 . 4 127 7,885 J u ly 1968 . 8 ,1 5 5 2,266 4 .1 3 6 2 5 6.404 A u g u s t . 6 ,1 6 2 112 2 .0 7 6 128,716 A u g u s t . 13.010 4.525 7.335 4 5 4,742 S e p te m b e r . 1,705 19 560 3 3.582 S e p te m b e r . 7 ,2 0 0 523 2.601 I 56,032 O c to b e r . 1,145 2 389 2 4,118 O c to b e r . 5 ,5 9 6 518 1,533 9 5,024 N o v e m b e r . 157 0 1 9 .5 1,170 N o v e m b e r . 9 0 0 286 506 30,336 D e c e m b e r . 254 0 24 1,510 D e c e m b e r . 4 3 6 136 223 13,816J a n u a r y 1969 123 0 6 .3 393 J a n u a r y 1969 361 114 166 10,322 F e b r u a r y . 4 3 6 0 51 2.855 F e b r u a r y . 803 87 231 12,942 M a r c h . 9 4 4 0 .1 103 6 ,3 9 0 M a r c h . 1.626 124 507 31,456511 0 4 0 2 ,3 7 4 A p r il . . 1.343 141 315 18,904120 0 21 1,305 1,830 127 784 48.6041 2 .1 5 . 6 7 . 8 465 5 ,2 9 0 775 1.805 108,1 12T o t a l f o r t h e y e a r 2 1 0 ,7 6 3 a c r e fee t T o t a l f o r t h e y e a r 1.236,694 a c re feetRiver Murray at Torrumharry (V ) Gunbower Creek at Koondrook Spillway (V)M o n thD is c h a rg e in c u b ic fe e t p e r s e c o n dD is c h a rg e f o r m o n th in a c re fee tM o n th M a x im u m M in im u m M e a nJ u ly 1968 . 10,540 4 ,6 6 0 6,918 4 2 8 ,9 3 0 J u ly 1968 .A u g u s t . 17,000 5,010 12,388 7 6 8 ,0 4 0 A u g u s t .S e p te m b e r . 13,620 1,520 7 ,3 5 5 4 4 1 ,3 2 0 S e p te m b e r . O c to b e r . 7 ,6 7 0 1,680 4 .3 5 2 2 6 9,860 O c to b e r .N o v e m b e r . 6 .9 9 0 4 ,0 2 0 5,717 3 4 3,020 N o v e m b e r .D e c e m b e r . 5 ,1 2 0 1,680 2 ,7 3 4 169,504 D e c e m b e r .J a n u a r y 1969 2 ,1 0 0 1.410 1,658 102,810 J a n u a r y 1969F e b r u a r y . 3 ,2 8 0 1,500 2 .3 9 4 134,080 F e b r u a r y .M a r c h . . 4 ,7 4 0 1,410 2,981 184,840 M a r c h . .4 ,1 3 0 1.120 2 ,6 3 4 158,0604 ,4 6 0 1,190 2 ,4 0 2 148,920J u fic . . 8 ,0 1 0 2,490 4,631 2 7 7 ,8 8 0T o t a l f o r t h e y e a r 3 ,4 2 7 ,2 6 4 a c r e fD is c h a r g e in c u b ic feet p e r s e c o n dI M a x im u m M in im u m M e a n977584144134103621882251642902720 0 0 3 24 1 1 0 17 14 07 . 05 .93313.276086611 9 .'95849310955 T o ta l fo r th e y e a r 4 4.645 a c re feetD is c h a rg efo rm o n th in a c re feet2.0828581.5913,7065,1603,7531.2335.3305.2825.5886.7353.327River Murray at Barham (TV) Loddon River at Appin South ( V )M o n thD is c h a r g e in c u b ic fe e t p e r s e c o n dD is c h a rg e fo r m o n th in a c re fee t M a x im u m M in im u m M e a nJ u ly 1968 . 1 9 ,2 2 0A u g u s t . 11,220S e p te m b e r . ! 11,115 O c to b e r . 7 ,5 4 0N o v e m b e r . 7 ,0 5 0D e c e m b e r . 5,425J a n u a r y 1969 j 1,880 F e b r u a r y . 3 ,2 6 0M a r c h . . 4 660A p ril . . 4 ; 170M a y . . 4 ,3 1 0J u n e . . 1 7 ,5 7 5T o t a l f o r t h e y4 ,9 4 05,2901,6201,6804 ,0 3 01,6001.1901.5501.190 9 9 0 9 9 02 .5 5 0 ear 3 ,1 8 8 ,76 ,9 9 79 ,3 8 87 ,1 2 74 ,2 3 25,6122,7121,4472 ,2 7 02,8122 ,6 5 92 ,2 7 24 ,7 6 5 30 a c r e fee t4 3 4 .0 0 05 8 2.0004 2 8 .0 0 02 6 2.0003 3 7.000168.000 8 9,700127.000174.000160.000141.0002 8 6.000M o n thD is c h a rg e in c u b ic feet p e r s e c o n dM a x im u m M in im u m M eanJ u ly 1968 .A u g u s t .S e p te m b e r . O c t o b e r . N o v e m b e r . D e c e m b e r . J a n u a r y 1969 F e b r u a r y . M a rc h . . T o ta l487 808 760 498 87 41 6.6 9 0 157 142 56 1 8 .21 0 .31 1 1185357 .9 2927 .6I 172 .4312 .010.51 .22 . 11 . 11 1 8 .62 .2765 .0277 . 14 . 29 .5 76,834 a c re feetD is c h a rg eform o n th in a c re feet6,88033.19017.5027.2601.8906511311.0404.7241.6341.36057241

G auging of the R iver M urray and its T ributaries— continued

Wakool River at Stoner Crossing (N ) Murrumbidgee River a! Maude (N)

D is c h a rg e in c u b ic fe e t

p e r s e c o n d D is c h a r g e

M a x im u m M in im u m M e a n

m o n th in

a c re fe e t

July 1968 . 2,595 344 997 6 1 ,8 0 0

A u gust . B .w a te r

2,514

289 662 4 1 ,0 0 0

S e p te m b e r . B. w a te r

3,763

558 2,462 148,000

O c to b e r . 558 137 230 14,200

N o v e m b e r . 518 209 372 2 2 ,3 0 0

D e c e m b e r . 447 171 311 19.300

J a n u a ry 1969 171 27 73 4 ,5 6 0

F e b ru a ry 109 22 64 3,600

M a rc h . . 235 94 139 8 ,6 0 0

A pril . . 294 139 231 13,900

170 123 136 8 ,4 6 0

382 170 273 16,400

T o ta l f o r th e y e a r 3 6 2 ,1 2 0 a c r e fee t

M o n th

D is c h a r g e in c u b ic fee t

p e r s e c o n d

M a x im u m ! M in im u m ! M e a n

D is c h a rg e f o r m o n th in

a c re fee t

J u ly 1968 . 1,545 490 747 46,300

A u gust. . 4 ,8 1 0 253 1.732 107,000

S e p te m b e r . 3,655 140 1.002 60.100

O c t o b e r . 2 ,3 8 0 157 867 53.700

N o v e m b e r . 2 ,7 8 0 192 776 46,500

D e c e m b e r . 390 174 296 18,400

J a n u a r y 1969 1,520 71 503 31,200

F e b r u a r y . 2 ,3 2 0 253 1.016 5 6,900

M a rc h . 2 ,4 2 0 232 1,618 100,000

A p ril . . 5,1 10 665 1.919 1 15,000

4 ,2 4 0 770 1 269 78,700

J u n e . . 4 ,5 6 0 1,145 2,083 125,000

T o t a l f o r th e y e a r 8 3 8 .8 0 0 a c re feet

Murrumbidgee River at Redbank (N ) Murrumbidgee River at Balranald (TV)

M o n th

D is c h a rg e in c u b ic fe e t

p e r s e c o n d D is c h a rg e

fo r

D is c h a r g e in c u b ic feet

p e r s e c o n d D is c h a rg e

M a x im u m M in im u m M e a n

m o n th in

a c re fe e t M a x im u m M in im u m M e a n

m o n th in

a c re feet

J u ly 1968 690 215 257 15,900 J u ly , 1968 . 833 270 379 2 3 ,5 0 0

A u g u s t . 2 ,4 8 0 215 903 5 6 ,0 0 0 A u g u s t . 2,635 308 982 6 0,900

S e p te m b e r . 2 ,1 6 0 58 685 4 1 ,1 0 0 S e p te m b e r . 2 ,2 6 4 433 1,215 7 2,900

O c to b e r . 1,557 87 574 3 5 ,6 0 0 O c t o b e r . 1,665 319 751 4 6,500

N o v e m b e r . 2,073 104 627 3 7 ,6 0 0 N o v e m b e r . 1,760 309 684 4 1 .0 0 0

D e c e m b e r . 361 204 279 17,300 D e c e m b e r . 393 207 271 16,800

J a n u a r y 1969 1,455 232 600 3 7 ,2 0 0 J a n u a r y 1969 1,448 193 545 3 3,800

F e b r u a r y . 2 ,0 6 0 505 997 5 5 ,8 0 0 F e b r u a r y . 1,996 206 951 5 3,200

M a rc h . 2,085 355 1,539 9 5 .4 0 0 M a r c h . 2 ,1 7 0 366 1,541 9 5 ,5 0 0

A p ril . . 4 ,1 5 0 770 1,677 101,000 A p r il . . 3,429 802 1 576 9 4 ,6 0 0

4 ,1 5 0 930 1,564 9 7 ,0 0 0 3,537 998 1,677 104,000

J u n e . . 3 ,2 3 0 1,140 | 1,938

T o ta l f o r th e y e a r 7 0 5 ,9 0 0 a c re fee t

116,000 J u n e . . 3 ,1 1 8 1,046

T o t a l f o r th e y e a r 7 60,70

1,965

0 a c re feet

1 18,000

River Murray below Wakool Junction ( V) River Murray below Lock 15, Euston ( V)

D is c h a r g e in c u b ic fee t

p e r s e c o n d D is c h a r g e

M o n th

M a x im u m M in im u m M e a n

m o n th in

a c r e fe e t

J u ly 1968 . 14,263 6,486 10,493 650,548

A u g u s t . 13,180 6,510 9.305 5 7 6 ,8 8 6

S e p te m b e r . 15,550 3.298 12,390 7 4 3 ,4 2 0

O c to b e r . 6,534 2,040 4,125 2 5 5,754

N o v e m b e r . 7,422 4,892 6,187 3 7 1 .1 9 6

D e c e m b e r . 6,758 1.780 3,917 2 4 2 .8 8 4

J a n u a r y 1969 1,710 910 1,281

2,249

7 9,438

F e b r u a r y . 3,220 978 125,932

M a rc h A p ril .

. I 5 ,8 6 0 1,525 3,014 186,840

. 1 5,932 2,450 4,041 2 4 2 ,4 8 0

. 4 ,2 5 4 2,638 3,304 2 0 4,858

J u n e . . 7 .5 5 8 4,358 1 5,824

T o ta l f o r t h e y e a r 4 ,0 2 9 ,6 6 4 a c re fee

3 4 9,428

D is c h a r g e in c u b ic fee t

p e r s e c o n d

M a x im u m M in im u m M e a n

J u ly 1968 .

A u g u s t .

S e p te m b e r . !

O c to b e r . j

N o v e m b e r .

D e c e m b e r .

J a n u a r y 1969 F e b r u a r y .

M a rc h . .

7 ,0 9 0 10,919

P.760 9,389

4 .7 4 0 13,820

2 ,4 9 0 4,641

5,470 6.706

2 ,1 4 0 4,331

1.640 1.824

1.460 2.683

2 ,7 3 0 4.237

3,770 5.557

3.900 5.010

_____ 5.040 7.517

f o r th e y e a r 4.668.1 14 a c re feet

13.980 13.980 16,500 7,365

8,255 7 .3 1 0 2,315 4 ,6 6 5 7 .3 1 0 7,585 6 .4 4 0 10,020

D is c h a rg e for m o n th in

a c re feet

6 7 7,000 5 8 2.100 829,224 2 8 7,750 4 0 2,360 2 6 8,550

1 13,080 150,270 262,680 333,420 3 10 .6 3 0 4 5 1 .0 5 0

Darling River at Menindee Weir 32 (N)

D is c h a r g e in c u b ic fee t

p e r s e c o n d

D is c h a rg e fo r m o n th in

M a x im u m M in im u m M e a n a c re fee t

J u ly 1968 . 60 54 58 3,622

A u g u s t . 66 58 61 3,794

S e p te m b e r . 77 61 69 4,158

O c to b e r . 134 74 94 5,836

N o v e m b e r . 114 81 100 5,980

D e c e m b e r . 132 101 112 6,924

J a n u a r y 1969 134 103 1 12 6,974

F e b r u a r y .

M a r c h . .

1,870 782

101 66

1,377 151

7 7 ,1 3 4 9,348

A p ril . . 106 82 97 5.810

100 57 67 4,162

J u n e . . 67 47 53 3,206

T o t a l f o r t h e y e a r 136,948 a c re fe e t

M o n th

Darling River aI Burtundy (Λ )

D is c h a rg e in c u b ic feet

p e r s e c o n d

M a x im u m M in im u m M ean

J u ly 1968 A u g u s t S e p te m b e r O c to b e r

N o v e m b e r D e c e m b e r J a n u a r y 1969

F e b r u a r y M arc h .

65 59 49 65 60 406

312

1.720 1.645 136 90

70

T o ta l f o r th e y e a r

54 62

40 51

24 36

30 51

41 48

38 140

86 204

78 748

128 534

35 92

61 78

58 64

1 25,732 a c re feet

D isc h arg e fo r m o n th in

a c re feet

3.858 3.182 2.164 3. 160 2.860 8 .6 8 8 12.626 4 1.896

33.134 5,520 4.810 3.834

43

G auging of the R iver M urray and its T ributaries— c o n tin u e d

Darling Ana Branch, Bulpunga (TV)

M o n th

D is c h a r g e in c u b ic fee t

p e r s e c o n d D is c h a r g e

f o r

m o n th in

a c re fe e t

1 I

M a x im u m ) M in im u m 1 1

M e a n

J u ly 1968 . 154 0 51 3,158

A u g u s t . 154 1 38 | 119 7,408

S e p te m b e r . 29 0 3 . 5 208

O c t o b e r . 0 0 0 0

N o v e m b e r . 0 0 0 0

D e c e m b e r . 0 0 0 0

J a n u a r y 1969 0 0 0 0

F e b r u a r y . 0 0 0 0

M a rc h . . 0 0 0 0

A p ril . . 0 0 0 0

0 0 0 0

0 ! ο 1 0 0

T o t a l f o r th e y e a r 1 0,774 a c re fe e t

44

APPENDIX VII

DIVERSIONS AND IMPOUNDINGS FROM THE RIVER MURRAY AND ITS TRIBUTARIES

1 · New South Wales 2. Victoria 3. South Australia

1. NEW SOUTH WALES

PARTICULARS OF DIVERSIONS FROM RIVER MURRAY AND ALL TRIBUTARIES AND EFFLUENTS IN NEW SOUTH WALES FOR THE YEAR 1968-69

T a b l e 1. D iv e r s io n s from R iv e r M u r r a y a n d T r ib u t a r ie s A B O V E A lBURY F O R IR R IG A T IO N A N D O T H E R P U R P O S E S

Month Licensed works

A cre feet

Julv 1968 ........................................................ 48

A ugust . . . . . . 48

S eptem ber . . . . . 51

O ctober . . . . . . 116

N o v em b er . . . . . 151

D ecem ber . . . . . 177

Ja n u ary 1969 . . . . . 186

F eb ru ary . . . . . . 175

M arch . . . . . . 113

A pril . . . . . . 66

Ma y . . . . . . 63

June . . . . . . 48

T otal . . · ■ 1,242

45

T o ta l d iv e rs io n

A cre feet 3 1 4 1 3 ,0 1 6 134,181

1 0 0 ,2 7 7 7 1 ,6 9 9 70,4 5 1 1 0 7 ,6 8 9

7 3 ,9 4 8 6 6 ,7 0 4 3 4 ,9 7 2 2 3 ,5 3 0

1,120

6 9 7 ,9 0 1

T able 2— c o n tin u e d

B. Diversions from effluents o f River Murray below Albury fo r irrigation and other purposes

M o n th L ic e n s e d w o rk s

F r o m R iv e r M u r r a y

v ia M u lw a la C a n a l

in to a n d / o r fro m

E d w a r d R iv e r

C o u n tr y to w n s

w a te r s u p p ly p u m p s

T o ta l

W a k o o l I r r ig a tio n

D is tr ic t

A cre feet A cre feet A cre feet A cre feet

July 1968 . . . . 487 nil 122 609

August . . . . 1,765 3,158 144 5,067

Septem ber . . . . 7,560 33,550 161 41,271

O ctober . . . . 5,753 29,016 285 35,054

N ovem ber . . . . 4,315 23,634 316 28,265

D ecem ber . . . . 4,202 21,482 362 26.046

January 1969 . . . 5,204 24,930 364 30,498

F ebruary . . . . 4,068 22,696 284 27.048

M arch . . . . 4,217 23,612 237 28.066

A p r i l ............................................ 3,294 9,024 220 12.538

M ay . . . . . 1,571 12,522 171 14,264

June . . . . . 224 nil 101 325

T otal . . . 42,660 203,624 2,767 249,051

T a b l e 3.

Diversions from Murrumbidgee River, tributaries (exclusive o f Lachlan River) and effluents for irrigation and other purposes

I r r ig a t io n a re a s a n d d is tr ic ts C o n tr o lle d flo o d in g s

M o n th

L ic en se d j w o rk s M ir r o o l,

e m b a h ^ b a l f v 1" H a y G u m ly

M a u d e R e d b a n k

W e ir W e ir

C o u n tr y

s u p p ly p u m p s

T o ta l

J u ly 1968

S e p te m b e r O c to b e r .

N o v e m b e r D e c e m b e r J a n u a r y 1969 F e b r u a r y .

M a rc h A p ril

T o ta l

A c re fe e t ί

2,015

A c re fee t

nil

A c re fee t

nil

A c re fee t

nil

A c re feet 1

9,205 7 ,0 1 9 ! 2,262 529 1

1 1.332 8 5 ,2 9 6 2 3 ,2 5 0 1,007 2 )

15,934 9 0.423 2 3,875 667

9,769 9 9 ,5 8 0 2 4.644 1,107

663 12,359 9 9,045 26,453

18,537 | 119,980 3 2 ,9 3 0 ! 1,278

10,290 1 72,252 2 3,280 1 10

5.201 24,831 1 1,194

4,943

538

1,020 9 ,5 7 9 nil

901 665

5,284 nil

1,586 nil

nil nil 7

j 97,228 613,289 174,417 5,899 100

nil

4 3 ,3 7 4 2 8,916 1 1.936 2 9,956

16.777 2.165 938 7,500

nil nil nil

A c re feet 22,010 29,995 14.182

14.161 17.554 nil nil

nil nil nil

nil nil

9 7.902

A c re feet A c re feet

610 641 795 1.317 1.506 1.718 1.967 1.439 1.200

725 645 610

24.636 93.026 164.780 158,317 184.125 157.027 176.874 108.329

50.48 I 16.268 8.425 1.282

13.173 1.143.570

47

T able 3— c o n tin u e d

B. Diversions from Lachlan River, tributaries and effluents fo r irrigation and other purposes

M o n th L ic e n s e d

w o r k s

J e m a lo n g I rr ig a tio n D is tr ic t

C o u n tr y to w n s w a te r

s u p p ly p u m p s

T o ta l

July 1968 . . .

A cre feet 522 Acre feet nil

A cre feet 188 Acre feet 710

A ugust . . . 1,635 1,426 229 3,290

Septem ber . . . 8,964 7,884 288 17,136

O ctober . . . 8,976 6,706 395 16,077

N ovem ber . . . 10,074 5.492 602 16,168

D ecem ber . . . 9,303 6,179 458 15,940

January 1969 . . 13,782 7,003 660 21,445

F ebruary . . . 6,716 3,760 477 10,953

M arch . . . 1,863 3,282 390 5.535

April . . . . 216 270 314 800

Ma y . . . . 158 nil 260 418

June . . . . 184 nil 235 419

T otal . . 62,393 42,002 4,496 108,891

T a b l e 3— continued

C. Diversions from Darling River, tributaries and effluents fo r irrigation and other purposes

M o n th

L ic en se d works

P o m o n a I rr ig a tio n T r u s t

C o lla re n e b ri W a te r T r u s t

C o u n tr y to w n s

s u p p ly p u m p s

T o ta l

A cre feet A cre feet A cre feet Acre feet A cre feet

July 1968 . . . . 2,680 nil 9 1,033 3,722

A ugust . . . . . 5,318 5 10 1,045 6,378

Septem ber . . . . 13,150 458 10 1.122 14,740

O ctober . . . . . 24.413 443 12 1,800 26,668

N ovem ber . . . . 21,965 388 13 1,999 24,365

Decem ber . . . . 23,490 494 15 1,963 25,962

January 1969 . . . . 45,408 473 nil 2,129 48.010

F ebruary. . . . . 41,828 376 nil 2,320 44.524

M arch . . . . . 24,849 123 nil 2,046 27,018

A p r i l ............................................ 7,561 77 nil 1,551 9,189

May . . . . . 3,688 nil nil 1,600 5,288

June . . . . . 3,957 nil nil 1,566 5,523

Total . . . . 218,307 2,837 69 20,174 241,387

48

T able 4. I m po u n din g in R eservoirs

Month

Burrinjuck

(Murrumbidgee River)

Blowering

(Tumut River)

Wyangala

(Lachlan River)

Cargelligo (Lachlan River)

Brewster (Lachlan

A cre feet A cre feet A cre feet A cre feet A cre feet

July 1968 . . . . 29,544 132,300 46.520 - 7 0 15,970

August . . . . . 184.086 187,300 1 50,980 600 29,280

September . . . . -1 1 ,2 0 5 63,000 - 9,400 1,140 1,880

October . . . . . 30,225 162,500 - 5 0 0 1,890 1.570

November . . . . — 32,715 101,200 -14,500 2,630 4.820

December . . . . 8,633 45,000 -18,800 -2,780 12,520

January 1969 . . . . 94.821 -52,100 - 3 3 ,2 0 0 - 3 ,1 4 0 15.280

February. . . . . -3 1 ,6 0 8 - 6 5 ,6 0 0 - 5,800 4,230 8,260

March . . . . . - 9 8 8 -2 3 ,5 0 0 nil 5,860 18,860

April . . . . . 163,650 19,500 73,800 400 23,770

May . . . . . 45,365 63.800 10.850 840 5,880

June . . . . . 162,184 76,800 5,350 4,660 5.250

T otals . . . . 435,084 620,200 194,600 6,720 47,320

N o t e: A m inus sign against the figure in the above colum ns indicates th a t the storage h as decreased for the period m entioned.

T a b l e 4 — c o n tin u e d

M o n th

K e e p it

( N a m o i R iv e r)

B u r r e n d o n g

( M a c q u a r ie R iv e r)

P in d a ri

(S e v ern R iv e r)

M e n in d e e S to ra g e s (D a r lin g R iv e r)

T o ta l

July 1968 . . . .

A cre feet 12,124

A cre feet 22,990

A cre feet Storage

A cre feet 4,030

A cre feet 263,408

August . . . . . 81,556 76,980 com m enced 7,780 717,372

September . . . . 59,589 29,600 7 Jan u ary 167.130 295,694

October . . . . . 2.857 3,840 1969 56,820 259,202

November . . . . 7,756 25,380 -5 0 ,9 3 0 37,531

December . . . . 20,820 -3 0 ,6 3 5 n il -75,300 214,488

January 1969 . . . . 32,114 - 4 8 ,1 2 0 1 1,890 72.400 339.285

February . . . . 39,055 40,795 640 96,700 284,228

March . . . . . 21,337 -1 8 ,8 6 0 1.040 50,850 9,845

April . . . . . nil 51,110 1.320 95,350 425,460

May . . . . . - 2 6 9 32,885 200 18,300 177,851

June . . . . . 13,715 100,035 970 30.800 378,564

T otal . . . . 48,500 153,650 10.060 135.730 1,651.864

N o t e : A m i n u s s ig n a g a i n s t t h e f ig u re in t h e a b o v e c o l u m n s in d i c a t e s t h a t t h e s t o r a g e h a s d e c r e a s e d

fo r t h e p e r i o d m e n t i o n e d .

49

T able 5. S ummary of all D iversions

M o n th

: D iv e rs io n s fro m R iv e r M u rr a y , t r i b u ­

ta r ie s a b o v e A lb u ry a n d e fflu en ts b e lo w A lb u ry D iv e rs io n s fro m trib u ta r ie s o f R iv e r

M u r r a y b e lo w A lb u ry

I m -

1 p o u n d in g s in re s e rv o irs T a b le 4

to ta l

j T a b le 1

I T o ta l

T a b le 3 A T a b le 3B T a b le 3C

T o ta l

T a b le 2 A T a b le 2 B

A B C

A , B

a n d C

A c re A c re 1 A c re i A c re A c re A c re An re A c re A c re A c re

feet fee t | fe e t fee t feet feet feet fee t feet feet

J u ly 1968 . 48 314 601 , 971 24,636 710 3,722 29,068 2 6 3 ,4 0 8 293,447

A u g u st . 48 13,016 5,067 , 18,131 9 3,026 3,290 6,378 102,694 7 1 7 ,3 7 2 838,197

S e p te m b e r . 51 134,181 41,271 1 175,503 164,780 17,136 14.740 196,656 2 9 5,694 667,853

O c to b e r . 116 100,277 35,054 135.447 158,317 16,077 26,668 2 0 1,062 2 5 9,202 595,711

N o v e m b e r . 151 71,699 | 28,265 100,115 184,125 16,168 24,365 224.658 - 3 7 ,5 3 1 287,242

D e c e m b e r . 177 70,451 26,046 9 6 ,6 7 4 157,027 15.940 25,962 198,929 - 2 1 4 ,4 8 8 81,115

J a n u a r y 1969 186 107,689 30,498 | 138,373 176,874 21,445 48,010 2 4 6,329 - 3 3 ^ ,2 8 5 45,417

F e b r u a r y . 175 73,948 1 27,048 i 101,171 108,329 10,953 44,524 163,806 - 2 8 4 ,2 2 8 - 1 9 ,2 5 1

M a r c h . . 113 66,704 2 8,066 94.883 50,481 5,535 27,018 8 3,034 9,845 187,762

66 34,972 12,538 4 7,576 16,268 800 9,189 2 6,257 4 2 5 ,4 6 0 499,293

63 23,530 14,264 , 37,857 8,425 418 5,288 14,131 177,851 229,839

J u n e . . 48 1,120 325 1 1,493 1,282 419 5,523 7 ,2 2 4 i 3 7 8 ,5 6 4 1 387,281

T o ta l . 1,242 697,901 1 249,051 j 9 4 8,194 1,143,570 108,891 241,387 1,493,848 1,651,864 4 ,0 9 3 ,9 0 6

N o te: A m inus sign against the figures in the second-last colum n indicates th at the total storage has decreased for the period m entioned.

T able 6. R eturns a n d C ontributions to the R iver M urray

M o n th

R e tu rn v ia

M u lw a la C a n a l E sc a p e in to E d w a rd B illa b o n g

C re e k a t B u n d y

C o n tr ib u tio n s

M u rr u m - D a rlin g

bid g ee R iv e r R iv e r a t

a t B a lra n a ld B u rtu n d y

G r e a t A na

B ra n c h a t

B u lp u n g a

T o ta l

Acre feet A cre feet Acre feet Acre feet A cre feet A cre feet

July 1968 . . . 705 11,100 23,500 3,858 3,158 42,321

August . . . . 87 12,500 60,900 3,182 7,408 84,077

Septem ber . . . 25,754 17.700 72,900 2.164 208 1 18,726

O ctober. . . . 12,086 5,160 46,500 3,160 nil 66,906

N ovem ber . . . 1,872 4,130 41,000 2.860 nil 49.862

D ecember . . . 1,402 2,050 16.800 8.688 nil 28.940

January 1969 . . . 2,184 1,370 33,800 12,626 nil 49,980

February . . . 2,748 632 53,200 41,896 nil 98,476

M arch . . . . 4,885 9,640 95,500 33,134 nil 143,159

April . . . . 3,982 9,090 94,600 5.520 nil 113,192

May . . . . 11,126 10,200 104,000 4,810 nil 1 30,1 3 3

J une . . . . 130 9,930 118,000 3,834 nil 131,894

Total . . . 66,961 93,502 760,700 125,732 10,774 1,057,669

50

2. VICTORIA

/ j y

PARTICULARS OF DIVERSIONS FROM RIVER MURRAY AND ALL TRIBUTARIES AND EFFLUENTS IN VICTORIA FOR THE YEAR 1968-69

T able N o . 1. D iversions from R iver M urray a n d T ributaries above A lbury D iversions for Irrigation a n d other P urposes

M o n th

P r iv a te d iv e r s io n s

D o m e s tic a n d

s to c k a n d to w n

s u p p lie s

T o t a l

A cre feet A cre feet A cre feet

July 1968 . . . nil 130 130

A ugust . . . . 3 0 0 130 4 3 0

Septem ber . . . 1 ,1 0 0 170 1.270

O ctober . . . . 1,100 2 0 0 1,300

N ovem ber . . . 1,210 2 7 0 1.480

D ecem ber . . . 1 ,3 1 0 3 7 0 1,6 8 0

January 1969 . . . 1 ,2 1 0 3 9 0 1,600

F ebruary . . . 1,210 370 1,5 8 0

M arch . . . . 1 .3 0 0 310 1,6 1 0

A pril . . . . 1,0 0 0 2 7 0 1,270

M a y . . . . 300 160 460

June . . . . nil 130 130

T otal . . . 1 0 ,0 4 0 2 .9 0 0 1 2 ,9 4 0

51

T able No. 2. D iversions from R iver M urray below A lbury

A . Diversions fo r Irrigation

Month Private diversions wonga

Torrumbarry System

Nyah

National | Channel j Via Little j

Murray ,

Pental i

Island i

pump j

ΐ ί ϊ Γ pump

Total

! Acre feet Acre feet Acre feet ! Acre feet Acre feet Acre feet A cre feet A cre feet

July 1968 . . . 0 0 0 0 0 0 0 0

August . . . 2,410 1.832 15,740 0 0 0 15,740 102

Septem ber . . . 8,840 27,788 29,858 2,876 3,150 1,850 37,734 1,230

O ctober . . . 8,840 35,996 71,762 1,988 5,915 3,050 82,715 243

N ovem ber . . . 9,650 39,634 65,300 5,488 0 3,466 74,254 1,410

D ecember . . . 10,450 38,100 71.874 940 7,258 4,824 84,896 1,730

January 1969 , . 9,650 55,412 79,158 0 9,191 6,097 94,446 1,852

February . . . 10.450 27,732 65,898 0 6,222 2,121 74,241 668

M arch . . . 9,700 25,896 73,184 0 5,206 1,666 80,056 0

April . . . 8,000 16,120 36,898 0 6,009 500 43,407 50

May . . . . 2.410 3,346 22,736 0 1,258 376 24,370 194

June . . . . 0 0 0 0 0 0 0 0

Total . . 80,400 271,856 532,408 11,292 44,209 23,950 611,859 7,479

R o b in v a le

R e d C liffs

Acre feet | Acre feet

0 0

0 600

3,060 ; 6,402

2,478 3,862

2,383 4,194

2,723 | 6,784

3,790 6,766

1,179 2.964

0 448

652 802

0 1,192

0 0

; 16,265 j 34,014

M ild u r a | M e rb e in ! T o t a ls

| Acre feet 1A cre feet A cre feet

0 0 0

420 314 21,418

10,491 5,430 100,975

! 5,562 2,780 142,476

7,232 3,205 141,962

9,080 2,710 156,473

12,845 5,625 190,386

4,245 2,380 123,859

1,798 70 117,968

1,310 780 71,121

0 0 31,512

0 500 500

j 52,983 23,794 1,098,650

T able No. 2. D iversions from R iver M urray Below A lbury

B. Diversions f o r purposes other than Irrigation

Country

Domestic and stock supplies

Month supplies,

industrial.

Carwarp- Mallee North and Coreen Millewa

Totals

July 1968 . . . .

A cre feet

250

A cre feet

2,470

A cre feet

946

Acre feet

2,434

Acre feet

6,100

August . . . . . 250 841 nil 2,923 4,014

Septem ber . . . . 360 nil nil 500 860

O ctober . . . . . 460 nil nil nil 460

N ovem ber . . . . 570 nil nil nil 570

Decem ber . . . . 850 nil nil nil 850

January 1969 . . . . 930 nil nil nil 930

F ebruary. . . . . 850 nil nil 1,382 2.232

M arch . . . . . 670 nil nil nil 670

April . . . . . 570 nil nil nil 570

Ma y . . . . . 360 nil nil nil 360

June . . . . . 250 nil nil nil 250

T otal . . . . 6,370 3.311 946 7,239 17,866

T otal diversions from R iver M urray below A lbury for irrigation (A) . . . . 1,098,650

Total diversions from. River M urray below A lbury for Purposes o th er th an irrigation (B) . 17,866

1,116,516

T able N o . 3. D iversions from O vens R iver, T ributaries a n d E ffluents D iversions for Irrigation a n d O ther P urposes

Month

July 1968 A ugust .

Septem ber O ctober .

N ovem ber D ecem ber Ja n u ary 1969 F ebruary

M arch .

April .

May .

June .

Private diversions

Domestic and stock and town supplies

Total

A cre feet Acre feet Acre feet

nil 1 10 1 10

550 1 10 660

2.010 160 2,170

2,010 200 2.210

2.190 250 2.440

2.380 370 2.750

2,190 400 2.590

2.190 370 2.560

2,370 280 2.650

1.820 250 2.070

550 160 710

nil 1 10 110

T otal 18.2 6 0 2 .7 7 0 21,030

T able N o . 4. D iversions from G oulburn R iver and T ributaries

Month

Eastern Channel at Goulburn Weir

Western Channels at Goulburn Weir . .. . ___

Goulburn River Broken River 1

For

irrigation

Domestic and stock supply to Waranga-

Mallee

Private diversions

Domestic and stock and town supplies

Private diversions

Domestic and stock and town supplies

Total

A cre feet A cre feet A cre feet Acre feet A cre feet A cre feet Acre feet A cre feet

July 1968 . . 0 8,128 5,470 0 220 0 310 14,128

August . . 0 1 1.290 260 770 220 50 370 12,960

Septem ber . . 11,416 55,738 0 2,840 320 180 540 71,034

O ctober . . 20,236 110,990 3,130 2,840 410 180 540 138,326

N ovem ber . . 25,890 79,084 2,130 3,100 500 200 480 111,384

December . . 3 1,478 102,970 190 3,350 750 220 600 139,558

January 1969 . 46,170 141,238 0 3,100 820 200 370 191,898

February . . 21,990 138,896 0 3,100 750 200 230 165,166

M arch . . 19,656 111,786 0 3,350 630 210 520 136,152

A pril . . 3.816 57,684 o 2.580 500 170 420 65,170

May . . . 424 20,670 o 770 320 50 420 22,654

June . . . 0 0 2,880 o 220 0 340 3,440

T otals . 181,076 838,474 14.060 25,800 5,660 1,660 5,140 1,071,870

T a ble N o . 5. D iv e r sio n s from C a m pa spe R iver a n d T r ib u t a r ie s

Month

Coliban system Campaspe system

Total

Irrigation Domestic and stock and town

supplies

Total

Irrigation | Irrigation Campaspe I Campaspe district area

Private diversions

Domestic and stock and town supplies

Pumped to Waranga Western

Channel

Acre Acre A cre A cre Acre Acre Acre Acre A cre

feet feet feet feet feet feet feet feet feet

July 1968 . nil 530 530 nil nil nil 40 nil 570

August . 80 530 610 nil nil 80 40 nil 730

Septem ber 40 760 800 1,110 570 280 60 560 3,380

O ctober . 2.280 970 3.250 980 1.040 280 80 1,334 6,964

Novem ber 2,870 1,200 4,070 1,190 1,380 310 100 560 7,610

December 2,580 1,800 4,380 1,910 1,960 340 150 424 9,164

January 1969 2,420 1.960 4.380 1,020 1,220 310 160 3,088 10,178

February . 1,510 1.800 3,310 1.450 1,220 310 150 3,160 9,600

M arch . 1.090 1,490 2,580 120 10 330 130 3,456 6,626

April . 150 1,200 1,350 nil 80 260 100 340 2,130

May . 10 760 770 nil nil 80 60 1 10 1,020

June . nil 530 530 nil nil nil 30 nil 560

T otal . 13,030 13,530 26,560* 7,780 7,480 2,580 1,100 13,032 58,532

* In clu d e s 5,368 a c re feet p e r L a k e E p p a lo c k p ip elin e.

54

T able N o. 6. D iversions from Loddon R iver, T ributaries and Effluents

A t L o d d o n W e ir

M o n th

F o r

ir r ig a tio n

D o m e s tic a n d s to c k

s u p p ly to

W im m e ra - M a lle e sy ste m N o r m a n v ille w a te r-w o rk s

d is tr ic t, e tc .

P r iv a te d iv e rs io n s

D o m e s tic a n d s to c k

a n d to w n

s u p p lie s

T o ta l

July 1968 . .

Acre feet

0

Acre feet

610

A cre feet

0

A cre feet

110

Acre feet

720

A ugust . . . 300 4,950 530 110 5,890

Septem ber . . 1,880 6,590 1,950 150 10,570

O ctober . . . 4,500 2,090 1,950 200 8,740

N ovem ber . . 2,500 530 2,120 240 5,390

D ecem ber . . 0 0 2,300 360 2,660

Jan u ary 1969 . . 0 0 2,120 400 2,520

F e b ru a ry . . . 3,100 0 2,120 360 5,580

M arch . . . 11,300 0 2,300 300 13,900

A pril . . . 950 50 1,780 240 3,020

M ay . . . 200 4,610 520 150 5,490

June . . . 0 2,000 0 110 2,110

T otal . . 24,730 21,430 17,700 2,730 66,590

T a b l e N o . 7 . I m p o u n d in g s i n R eser voirs

M onth

Goulburn River

Campaspe River

Loddon River

Total

Lake Eildon, G oulburn Weir Waranga Reservoir

Greens Lake, Lake N illahcootie

Coliban Storages, Lake Eppalock

Laanecoorie, Tullaroop and Cairn Curran | Reservoirs !

i

A c r e feet A cre feet A c r e fe e t i A c r e feet

J u ly 1968 . . . + 1 5 7 ,1 0 0 6 7 ,3 3 0 • 4 8 ,0 9 0 + 2 7 2 ,5 2 0

A u g u s t . . . + 4 1 5 ,6 1 0 + 2 2 ,8 5 0 3 9 ,2 5 0 4 7 7 ,7 1 0

S e p te m b e r . . . + 1 5 8 ,9 6 0 + 6 3 0 1,400 + 15 8 ,1 9 0

O c to b e r . . . + 3 8 5 ,5 6 0 + 560 - 3 ,0 9 0 + 3 8 9 ,2 1 0

N o v e m b e r . . . + 8 9 ,4 4 0 3 ,9 4 0 1,350 - 8 4 , 1 5 0

D e c e m b e r . . . - 9 3 , 6 1 0 1 3 ,220 5 ,9 4 0 - 1 1 2 ,770

J a n u a r y 1969 . . - 2 3 1 , 6 1 0 - 2 0 , 8 2 0 -9 ,9 6 0 - 2 6 2 , 4 2 0

F e b r u a r y . . . - 1 1 5 , 1 1 0 - 1 3 ,210 10,250 - 1 3 8 ,570

Ma r c h . . . . - 7 8 ,6 2 0 1 0 ,830 16,150 - 1 5 0 , 6 0 0

A p ril . . . . - 3 , 0 4 0 4 ,6 0 0 - 3 , 9 9 0 - 11,630

M a y . . . . 4 2 0 ,1 2 0 130 - 5 3 0 19,720

Ju n e . . . . + 8 3 ,6 3 0 - 700 - 7 0 - 8 4 ,2 6 0

T o ta l . . . + 7 8 8 ,4 3 0 + 2 5 ,5 8 0 4 0 ,7 6 0 - 8 5 4 ,7 7 0

N o t e : A m inus sign against the figures in the above table indicates th at the

storage decreased for the period m entioned.

55

T r ib u ta rie s b e lo w A lb u ry

T o ta l fo r

Table 6 Table 7 Total

all

purposes

Acre feet Acre feet Acre feet A cre feet

720 +272,520 288,048 294,278

5,890 +477,710 497.950 523,812

10,570 + 158,190 245,344 348,449

8,740 + 389,210 545,450 689,686

5,390 + 84,150 210,974 354,986

2,660 - 112,770 41,362 200,365

2,520 -2 6 2 ,4 2 0 55,234 137,682

5,580 - 138,570 44,336 172,007

13,900 105,600 53,728 173,976

3,020 - 11,630 60,760 133,721

5,490 + 19,720 49,594 81,926

2,1 10 + 84,260 90,480 91,360

66,590 + 854,770 2.072,792 3,202,248

T r ib u t a r y c o n tr ib u tio n s

Acre feet 256,404 454,742 156,032

95,024 30,336 13,816 10,322

12,942 31,456 18,904 48,604 108,112

1,236,694

C a m p a s p e

R o c h e s te r

Acre feet 7,885 128,716 33,582

24,118 1,170 1,510 393 2,855 6,390 2,374

1,305 465

F ifte e n M ile C re e k , G r e ta

S o u th

Acre feet 5,868 15,670 6,990 14,274

4,592 2,260 728 374

864 897 1,163 1,856

210,763 55,536

T o ta l

A cre feet 403,911 1,050,528 445,097

470,223 176,040 82,399 37,652

47,763 90,865 79,119 118,355 222,968

3,224,920

3. S O U T H A U S T R A L IA

P articulars of D iversions from R iver M urray in South A ustralia for the Y ear 1968-69

Month

July 1968 .

A ugust .

Septem ber . O ctober .

N ovem ber .

D ecem ber .

Ja n u ary 1969 F eb ru ary .

M arch .

A pril . .

M ay . .

Ju n e . .

T otal

Irrigation of areas over 1 acre

Stock, domestic and town supplies

A cre feet A cre feet

5,044 916

9,238 959

34,006 1,563

27,712 2,341

39,546 2,345

37,299 4,152

44,261 6,696

37,050 4,960

28.058 5,262

20,130 4,089

9,984 3,366

6,646 1,483 |

298,974 38,133

Total

A cre feet

5,960 10,197 35,569 30,053 41,891 41,451

50,957 42,010 33,320 24,219

13,350 8,129

337,107

24869/69 58