Appendix 8: Aquifers with 100-Largest Domestic Water Allocation

New Zealand Water Bodies of National Importance for Domestic Use and Industrial Use

P A White, B M H Sharp and R R Reeves, Institute of Geological & Nuclear Sciences

[ Last Updated 17 January 2006 ]

Rank	GNS aquifer name	Council	Allocation m³/week
1	Christchurch-West Melton	CRC	3374255
2	Heretaunga Plains	HBRC	1100792
3	Hutt	WRC	963011
4	Ashley Downs	CRC	493311
5	Auckland volcanics	ARC	422921
6	Central Plains	CRC	418127
7	Manawatu	HMW	342377
8	Rangitata-Levels plains	CRC	342138
9	Lower Taieri Plain - East and West	ORC	300923
10	Upper Wairau Valley	MDC	280784
11	Mamaku Plateau	EBOP	260624
12	Rakaia-Ashburton plains	CRC	249901
13	Coromandel volcanic	EW	228543
14	Wanganui	HMW	186039
15	Upper Confined	TDC	185803
16	Whakamuru Ignimbrites	EW	169134
17	Dunstan Flats	ORC	165434
18	Rangitaiki Plains (assumes shallow system)	EBOP	129682
19	Raumati-Paekakariki	WRC	121390
20	Coastal aquifers	SRC	114171
21	Ruataniwha Plains	HBRC	110894
22	Bucklerburn gravels	ORC	100820
23	Waitaki Groundwater	CRC	94912
24	Matahina Ignimbrite	EBOP	91798
25	Ashburton-Rangitata plains	CRC	88508
26	Central Otago other	ORC	87947
27	Kia Iwi stream	HMW	80640
28	Wairarapa	WRC	75979
29	Tauranga Group sediments	EW	74354
30	South Canterbury	CRC	62997
31	Waiau groundwater	SRC	60200
32	South Auckland volcanics	ARC	50946
33	Takaka Valley Gravel	TDC	49709
34	Taupo sand	EW	48923
35	Tauranga Group sediments	ARC	47099
36	Waiteariki Ignimbrite	EBOP	45970
37	Waitemata Formation	ARC	36851
38	Kaituna Valley	MDC	34720
39	Opotiki	EBOP	31962
40	Tuamarino Valley	MDC	31822
41	Galatea Basin	EBOP	28728
42	Parnassus Basin	CRC	25096
43	NULLaquifer	ORC	23742
44	Greywacke	ARC	22842
45	Lower Waikato Groundwater	EW	19600
46	Waiotapu Ignimbrite	EW	19600
47	Mowhanau Stream	HMW	18144
48	Whenuakura Formation	TRC	17437
49	Coastal	HMW	16142
50	Groundwater Central Coast	CRC	13860
51	Hinuera Formation	EW	12516
52	Otorohanga and Orahiri limestone	EW	10717
53	East Coastal groundwater	NRC	10561
54	Kaikohe	NRC	10465
55	Esk Valley	HBRC	9658
56	Whataroa River	WCRC	9072
57	South Auckland volcanics	EW	8358
58	Buller River Terraces	TDC	8000
59	Hurunui Groundwater	CRC	7861
60	Aparima groundwater	SRC	7392
61	Kaikoura Plain	CRC	6374
62	Motueka River Terraces	TDC	6300
63	Ruawai	NRC	5670
64	Sandstone	ARC	5054
65	Upper Tarawera GW	EBOP	3675
66	Wairau River	MDC	3360
67	Porangahau River	HBRC	3085
68	Clarence Groundwater	CRC	3024
69	Ngawha	NRC	2856
70	Banks Peninsula	CRC	2415
71	Hamilton Basin Groundwater	EW	2338
72	Rotorua GW	EBOP	2226
73	Mahia sand	HBRC	2185
74	Haast River	WCRC	2177
75	Lower Waitaki Alluvium	CRC	2142
76	Not Defined	ARC	2122
77	Flaxbourne River	MDC	1904
78	Lower Waihopai Aquifer	MDC	1575
79	Little Groper Creek	WCRC	1512
80	Auckland coastal aquifers	ARC	1407
81	Whakatane GW	EBOP	1400
82	Waiotama/nepu gw	NRC	1361
83	Kakanui-Kauru Alluvium	ORC	1267
84	Aupouri	NRC	1239
85	Takaka Limestone	TDC	1183
86	Small West Coast	EW	1169
87	Waipatiki Stream	HBRC	1085
88	Manapouri groundwater	SRC	1050
89	west coastal groundwater	NRC	1022
90	Waihi Beach Rhyolite	EBOP	987
91	Tara	NRC	952
92	Rangitikei	HMW	910
93	Tarawera GW	EBOP	763
94	Benmorven	MDC	749
95	North Cape groundwater	NRC	700
96	Waitemata Formation	NRC	623
97	Nuhaka coastal	HBRC	605
98	Pacific Ocean	HBRC	605
99	Matemateaonga Formation	TRC	560
100	Other	MDC	557

Note: Multiple aquifer listings occur where more than one council allocates water from one aquifer. Multiple aquifer names occur where different aquifers are given the same name in more than on region e.g. "coastal" aquifer occurs in the Manawatu-Wanganui region and the Wellington region. A "nullaquifer" name occurs where allocation is not associated with a named aquifer or the location of the consent is outside the regions in Figure 2 and Figure 3 and not named by Lincoln Environmental (2001).

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Printed: 25/11/2009