Environmental flows - 2008

Home | Human Settlement | Water Supply & Sewage Management | Environmental Flows | 2008

Indicator description

What does the Data tell us for 2008

The interim environmental objectives for the Shoalhaven River have been influenced by:

·         Healthy Rivers Commission report on Shoalhaven River;

·         Sydney Catchment Authority water extraction licence;

·         Water Management Act 2000.

Table 49 - Shoalhaven River Flow and Diversions 2004/05 – 2007/08 (megalitres)

 

TALLOW INFLOW

BURRIER PUMPS

 Month

2004/5

2005/6

2006/7

2007/8

2004/5

2005/6

2006/7

2007/8

July

3,545

152,673

35,726

98,571

1,415

1,044

1,016

1,363

August

2,885

11,837

21,451

23,305

430

1,109

903

1,039

September

2,117

8,133

21,526

16,035

1,965

1,125

1,195

1,033

October

23,614

6,577

3,917

5,687

1,747

1,261

1,065

1,407

November

14,046

71,871

4,696

55,266

1,244

1,127

1,110

1,054

December

38,239

27,839

2,378

45,537

1,342

1,339

539

1,065

January

8,760

13,130

3,225

17,951

1,500

1,599

1,669

1,297

February

19,918

7,821

86,628

98,717

1,151

1,241

2,167

832

March

21,698

3,747

29,893

13,661

1,207

1,129

1,110

1,159

April

9,747

1,881

12,346

13,332

1,176

434

1,115

937

May

9,822

2,197

7,841

7,015

1,138

1,053

1,035

1,094

June

12,705

47,038

419,288

30,757

1,015

2,325

434

982

TOTAL

167,096

354,744

648,915

425,834

15,330

 14,786

13,358

13,262

% Diverted

 

 

 

 

9.17%

4.16%

2.06%

3.11%

 

Table 50 - Environmental Objectives

Overview

Achievements

Bulk Water Supply Agreement with SCA and Bulk Water Supply Protocols incorporate environmental releases.

 

Implementation of the new agreement was successful; with water releases from Tallowa Dam being coordinated to meet Shoalhaven Water’s pumping demand as well as satisfying environmental requirements.

 

Water restrictions not required in 2007-2008.

 

Timely release from Tallowa Dam and pumping to Shoalhaven Water’s off-stream storage at Bamarang prior to short periods of low river flows allowed the Town Supply to be maintained without the need for supplementation from the Danjera Dam back-up supply.

 
Table 50a - Environmental Objectives (Targets)

Objective

Target

Maintain Environmental Flow objectives

Monitor weather, inflows, consumption and maintain dialogue with Sydney Catchment Authority for compliance with the Environmental Flow regime and efficient use of water resource.

Review Environmental Flow/ Extraction Regime

Work in partnership with the State Government in understanding economic, environmental, social and engineering studies into proposed environmental flow and extraction regime proposed for water supply to Sydney.

 

 

Home | Human Settlement | Water Supply & Sewage Management | Environmental Flows | 2008