Zone Name:	Ashburton-Lyndhurst	Current Status:	(Red)
Allocation Limit:	126.6 million m3/yr	Valid date:	30 April 2006
Order of Approach:	Second (50% of land-based recharge)

Recharge component

View the history of changes for Effective Allocation

Method of estimation

Background notes

The Ashburton-Lyndhurst Irrigation Scheme provides an additional source of groundwater recharge, raising groundwater levels in late summer. An additional 42.3 million m³/year of recharge has been included in the 2nd order estimate due to the irrigation scheme. There are no intermittent streams to provide recharge to groundwater.

Other available information sources

These reports may be used to provide a full description of groundwater resources in this area. They may include information that will be of use in a consent application, but are not necessarily a comprehensive list.

• Aitchison-Earl, P., Davey, G., Ettema, M., McKerchar, A., Scott, D., Smith, E., and Weeber, J. 'State of the Canterbury Region Water Resource October 2004' (pdf 3.83 MB), U04/101
• Brown, L. J, 2000, 'Groundwaters of the Canterbury Region' Environment Canterbury Report R00/10.
• Sanders, R.A, 1999., 'Groundwater in the Ashburton-Rakaia plans area: a recent perspective'. Environment Canterbury Report U99/31.
• Sanders and Weeber 2001, 'Urral Investigation and Monitoring Well', Environment Canterbury Unpublished Technical Report U01/43
• Scott, D.M., Thorpe, H.R., 1986: Groundwater Resources Between the Rakaia and Ashburton Rivers. Publication No. 6 of the Hydrology Centre, Christchurch.

Allocation history

Effective Allocation

 11 January 2010

Effective Allocation (million m³): 128.52
Reason for Change: Consents update.
Source: Consents database live-read
Proportion Allocated: 101%

 7 December 2009

Effective Allocation (million m³): 128.36
Reason for Change: Consents update.
Source: Consents database live-read
Proportion Allocated: 101%

 3 November 2009

Effective Allocation (million m³): 128.09
Reason for Change: Consents update.
Source: Consents database live-read
Proportion Allocated: 101%

6 July 2009

Effective Allocation (million m³): 128.00
Reason for Change: Consents update.
Source: Consents database live-read
Proportion Allocated: 101%

2 June 2009

Effective Allocation (million m³): 127.64
Reason for Change: Consents update.
Source: Consents database live-read
Proportion Allocated: 100.82%

9 February 2009

Effective Allocation (million m³): 127.65
Reason for Change: Consents update.
Source: Consents database live-read
Proportion Allocated: 101.00%

3 November 2008

Effective Allocation (million m³): 127.28
Reason for Change: Consents update.
Source: Consents database live-read
Proportion Allocated: 101.00%

7 July 2008

Effective Allocation (million m³): 127.20
Reason for Change: Consents update.
Source: Consents database live-read
Proportion Allocated: 100.00%

12 May 2008

Effective Allocation (million m³): 126.83
Reason for Change: Consents update.
Source: Consents database live-read
Proportion Allocated: 100.00%

4 February 2008

Effective Allocation (million m³): 126.75
Reason for Change: Consents update.
Source: Consents database live-read
Proportion Allocated: 100.00%

3 December 2007

Effective Allocation (million m³): 126.72
Reason for Change: Consents update.
Source: Consents database live-read
Proportion Allocated: 100.00%

5 November 2007

Effective Allocation (million m³): 127.19
Reason for Change: Consents update.
Source: Consents database live-read
Proportion Allocated: 100.00%

1 October 2007

Effective Allocation (million m³): 125.85
Reason for Change: Consents update.
Source: Consents database live-read
Proportion Allocated: 100.00%

3 September 2007

Effective Allocation (million m³): 126.44
Reason for Change: Consents update.
Source: Consents database live-read
Proportion Allocated: 100.00%

23 July 2007

Effective Allocation (million m³): 126.85
Reason for Change: Consents update.
Source: Consents database live-read
Proportion Allocated: 100.00%

7 May 2007

Effective Allocation (million m³): 126.83
Reason for Change: Consents update.
Source: Consents database live-read
Proportion Allocated: 100.00%

Effective Allocation (million m³): 126.65
Reason for Change: Consents update.
Source: Consents database live-read
Proportion Allocated: 100.00%

Effective Allocation (million m³): 126.60
Reason for Change: Consents update.
Source: Consents database live-read
Proportion Allocated: 100.00%

25 September 2006

Effective Allocation (million m³): 126.347
Reason for Change: Consents update.
Source: Consents database live-read
Proportion Allocated: 99.80%

Effective Allocation (million m³): 115.42
Reason for Change: Effective allocation recalculated using a revised table of irrigation standards to address concerns with Schedule WQN9 of Chapter 5 NRRP, as approved by the Water Allocation Panel
Source: Consents database live-read on 29 June 2005
Proportion Allocated: 91.00%

31 January 2005

Effective Allocation (million m³): 111.19
Reason for Change: Consents update.
Source: Consents database
Proportion Allocated: 87.83%

24 November 2004

Effective Allocation (million m³): 109.52
Reason for Change: No change
Source: n/a
Proportion Allocated: 86.51%
Proportion Allocated changed due to Allocation Limit change

29 October 2004

Effective Allocation (million m³): 109.52
Reason for Change: Consents update
Source: Consents database
Proportion Allocated: 98.22%

11 October 2004

Effective Allocation (million m³): 102.98
Reason for Change: Consents update
Source: Consents database
Proportion Allocated: 92.36%

6 August 2004

Effective Allocation (million m³): 102.81
Reason for Change: Consents update
Source: Consents database
Proportion Allocated: 92.21%

26 July 2004

Effective Allocation (million m³): 101.09
Reason for Change: Consents update
Source: Consents database
Proportion Allocated: 90.66%

11 June 2004

Effective Allocation (million m³): 98.03
Reason for Change: Consents update
Source: Consents database
Proportion Allocated: 87.92%

31 March 2004

Effective Allocation (million m³): 96.72
Reason for Change: Consents update
Source: Consents database
Proportion Allocated: 86.74%

23 January 2004

Effective Allocation (million m³): 95
Reason for Change: This is the first estimate made
Source: Report U04/02 (Table 6.2)
Proportion Allocated: 85.20%

Allocation Limit

24 November 2004

Allocation Limit (million m³): 126.6
Reason for Change: Implementation of 2nd Order approach as approved by Directorate
Source: Report U04/97

23 January 2004

Allocation Limit (million m³): 115.5
Reason for Change: This is the first estimate made using the 1st Order Approach, and includes an additional 35 million m³/yr recharge from irrigation schemes.
Source: Report U04/02 (Table 6.2)