Zone Name:	Parnassus Basin	Status:	(White)
Allocation Limit:	12.8 million m3/yr	Valid date:	23rd January 2004
Order of Approach:	First (15% of average annual rainfall)

Recharge component

Method of estimation

Background notes

Groundwater availability for this zone is highly variable reflecting variable gravel age, thickness composition and connection to rainfall/river recharge sources. Losses from the Leamington Stream, Waiau River, and Jed River tributaries have been measured/estimated in a previous investigation (Lawler, 1988). Wells abstracting water from shallow aquifers connected to the rivers may be subject to stream depletion assessment/river low flow provisions.

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 3.83MB), U04/101
• Brown, L. J. 2001: Groundwaters of the Canterbury Region. Environment Canterbury Technical Report R00/10.
• Aitchison-Earl, P., Scott, D., Sanders, R., 'Groundwater Allocation Limits: Guidelines for the Canterbury Region' (pdf 973kB) January 2004 Report U04/02.
• Lawler, M.E. 1988: The Hydrogeology of the Cheviot Region, North Canterbury, New Zealand. MSc Thesis, University of Canterbury

Allocation history

Effective allocation

 3 May 2010

Effective Allocation (million m³): 5.49
Reason for Change: Consents update
Source: Consents database live-read
Proportion Allocated: 43%

 7 December 2009

Effective Allocation (million m³): 5.73
Reason for Change: Consents update
Source: Consents database live-read
Proportion Allocated: 45%

 3 November 2009

Effective Allocation (million m³): 5.52
Reason for Change: Consents update
Source: Consents database live-read
Proportion Allocated: 43%

6 July 2009

Effective Allocation (million m³): 5.42
Reason for Change: Consents update
Source: Consents database live-read
Proportion Allocated: 42%

2 June 2009

Effective Allocation (million m³): 4.87
Reason for Change: Consents update
Source: Consents database live-read
Proportion Allocated: 38%

2 March 2009

Effective Allocation (million m³): 4.73
Reason for Change: Consents update
Source: Consents database live-read
Proportion Allocated: 37%

19 February 2007

Effective Allocation (million m³): 5.85
Reason for Change: Consents update
Source: Consents database live-read
Proportion Allocated: 46%

19 February 2007

Effective Allocation (million m³): 5.68
Reason for Change: Consents update
Source: Consents database live-read
Proportion Allocated: 44.37%

18 September 2006

Effective Allocation (million m³): 5.64
Reason for Change: Consents update
Source: Consents database live-read
Proportion Allocated: 44%

23 January 2004

Effective Allocation (million m³): 5.6
Reason for Change: This is the first estimate made
Source: Report U04/02 (Table 6.2)
Proportion Allocated: 43.75%

Allocation limit

23 January 2004

Allocation Limit (million m³): 12.8
Reason for Change: This is the first estimate made
Source: Report U04/02 (Table 6.2)