Drinking water quality
The proportion of the estimated resident population who receive
their water from community water supplies whose drinking water complies
with either the 2000 or 2005 Drinking-water standards for New Zealand
relating to E. coli and Cryptosporidium.
Drinking water quality - E. coli, 2001 - 2008
| Territorial authority |
E. Coli compliance (% of population) |
| 2001 |
2002 |
2003 |
2004 |
2005 |
2006/2007 |
2007/2008 |
| Far North District |
37.5 |
37.7 |
38.4 |
39.8 |
38.2 |
30.1 |
39.1 |
| Whangarei District |
90.0 |
21.5 |
85.5 |
84.9 |
18.8 |
82.4 |
81.3 |
| Kaipara District |
39.5 |
33.9 |
38.5 |
9.7 |
29.4 |
0.0 |
0.0 |
| Rodney District |
41.5 |
40.6 |
35.5 |
48.1 |
47.6 |
48.6 |
47.6 |
| North Shore City |
95.1 |
92.7 |
94.3 |
98.8 |
97.3 |
94.3 |
95.1 |
| Waitakere City |
96.2 |
96.1 |
93.4 |
92.8 |
98.9 |
98.0 |
97.9 |
| Auckland City |
93.8 |
91.0 |
88.1 |
91.1 |
90.3 |
92.1 |
90.6 |
| Manukau City |
96.3 |
93.3 |
87.9 |
94.4 |
93.6 |
96.3 |
94.3 |
| Papakura District |
94.9 |
91.5 |
91.1 |
89.0 |
88.1 |
95.3 |
97.8 |
| Franklin District |
37.1 |
52.4 |
51.4 |
52.1 |
60.8 |
0.0 |
0.0 |
| Thames-Coromandel District |
70.0 |
62.5 |
32.5 |
36.3 |
68.8 |
68.5 |
72.9 |
| Hauraki District |
51.8 |
49.7 |
0.0 |
0.0 |
0.0 |
64.4 |
54.9 |
| Waikato District |
50.0 |
1.8 |
0.0 |
38.6 |
40.9 |
21.0 |
30.0 |
| Matamata-Piako District |
52.7 |
54.4 |
21.0 |
3.6 |
18.8 |
52.2 |
54.9 |
| Hamilton City |
96.9 |
0.0 |
92.4 |
100.7 |
99.0 |
95.8 |
95.5 |
| Waipa District |
76.3 |
28.8 |
0.8 |
1.9 |
34.1 |
61.6 |
69.3 |
| Otorohanga District |
23.8 |
23.3 |
6.8 |
13.5 |
15.2 |
42.6 |
12.5 |
| South Waikato District |
1.2 |
89.6 |
0.7 |
0.9 |
4.0 |
1.6 |
0.3 |
| Waitomo District |
47.5 |
48.4 |
5.1 |
52.5 |
55.1 |
61.8 |
62.6 |
| Taupo District |
60.5 |
68.6 |
99.2 |
65.7 |
97.1 |
97.5 |
108.0 |
| Western Bay of Plenty District |
1.1 |
71.0 |
55.0 |
55.6 |
65.6 |
62.9 |
52.9 |
| Tauranga City |
96.5 |
92.5 |
89.7 |
103.2 |
87.6 |
95.4 |
94.0 |
| Rotorua District |
1.5 |
72.6 |
11.3 |
11.8 |
25.3 |
1.3 |
92.1 |
| Whakatane District |
44.3 |
66.5 |
62.0 |
60.6 |
0.0 |
1.6 |
83.6 |
| Kawerau District |
0.0 |
0.0 |
109.7 |
13.8 |
0.0 |
0.0 |
87.9 |
| Opotiki District |
53.7 |
6.2 |
6.6 |
5.9 |
0.0 |
46.4 |
0.0 |
| Gisborne District |
68.5 |
68.6 |
67.2 |
65.9 |
68.0 |
69.8 |
67.8 |
| Wairoa District |
51.7 |
51.0 |
54.9 |
55.8 |
52.8 |
54.2 |
8.0 |
| Hastings District |
87.2 |
88.0 |
89.3 |
88.7 |
88.2 |
81.1 |
86.1 |
| Napier City |
89.2 |
86.5 |
88.0 |
87.5 |
89.9 |
89.3 |
89.3 |
| Central Hawke's Bay District |
43.0 |
47.5 |
0.8 |
51.3 |
50.9 |
50.8 |
0.2 |
| New Plymouth District |
79.4 |
79.0 |
78.5 |
77.3 |
77.0 |
75.9 |
75.5 |
| Stratford District |
60.4 |
63.3 |
63.1 |
62.7 |
62.8 |
60.5 |
63.1 |
| South Taranaki District |
0.0 |
4.8 |
80.8 |
12.6 |
82.2 |
83.3 |
81.2 |
| Ruapehu District |
0.0 |
0.1 |
45.7 |
3.7 |
6.1 |
5.2 |
44.5 |
| Whanganui District |
3.1 |
90.0 |
67.8 |
24.2 |
93.2 |
93.0 |
94.9 |
| Rangitikei District |
62.6 |
61.2 |
6.7 |
0.0 |
33.0 |
63.7 |
67.1 |
| Manawatu District |
1.4 |
54.1 |
57.9 |
56.6 |
51.7 |
55.9 |
53.5 |
| Palmerston North City |
115.8 |
118.9 |
117.2 |
116.3 |
111.7 |
20.7 |
105.9 |
| Tararua District |
0.0 |
6.4 |
61.5 |
53.4 |
45.9 |
63.0 |
63.3 |
| Horowhenua District |
86.1 |
81.2 |
86.1 |
86.1 |
86.1 |
87.7 |
87.4 |
| Kapiti Coast District |
92.4 |
91.8 |
90.3 |
88.0 |
38.6 |
84.4 |
83.8 |
| Porirua City |
94.2 |
93.3 |
92.3 |
92.4 |
92.5 |
92.3 |
91.8 |
| Upper Hutt City |
92.0 |
91.2 |
90.2 |
89.1 |
89.4 |
86.9 |
87.1 |
| Hutt City |
95.5 |
95.7 |
95.3 |
95.1 |
94.9 |
94.6 |
94.4 |
| Wellington City |
82.9 |
94.7 |
58.2 |
90.7 |
89.6 |
86.7 |
85.7 |
| Masterton District |
0.0 |
81.5 |
1.3 |
84.4 |
82.6 |
84.7 |
83.8 |
| Carterton District |
0.0 |
59.6 |
59.0 |
58.6 |
58.3 |
57.5 |
57.1 |
| South Wairarapa District |
0.0 |
0.0 |
67.2 |
67.8 |
66.7 |
66.1 |
49.3 |
| Tasman District |
67.0 |
75.5 |
67.3 |
43.4 |
39.8 |
43.2 |
41.9 |
| Nelson City |
139.9 |
139.4 |
137.8 |
97.7 |
97.5 |
97.0 |
96.6 |
| Marlborough District |
66.7 |
3.8 |
1.3 |
3.5 |
4.8 |
75.3 |
75.2 |
| Kaikoura District |
0.0 |
0.0 |
13.7 |
30.3 |
85.4 |
82.7 |
84.7 |
| Buller District |
65.5 |
66.0 |
67.0 |
5.8 |
2.8 |
4.9 |
54.0 |
| Grey District |
64.9 |
76.9 |
77.8 |
76.2 |
76.9 |
75.8 |
66.2 |
| Westland District |
48.8 |
14.1 |
19.6 |
0.0 |
0.0 |
5.6 |
8.9 |
| Hurunui District |
0.0 |
32.2 |
24.4 |
67.2 |
12.9 |
45.2 |
23.6 |
| Waimakariri District |
1.7 |
1.2 |
12.1 |
44.8 |
60.1 |
56.3 |
32.0 |
| Christchurch City |
2.4 |
86.5 |
87.4 |
79.4 |
89.0 |
110.9 |
110.2 |
| Selwyn District |
3.7 |
3.7 |
18.9 |
8.4 |
8.4 |
20.1 |
17.6 |
| Ashburton District |
73.6 |
67.6 |
66.0 |
72.6 |
67.5 |
13.7 |
68.9 |
| Timaru District |
92.4 |
88.0 |
96.6 |
82.1 |
88.2 |
95.5 |
95.2 |
| Mackenzie District |
0.0 |
23.7 |
54.9 |
13.0 |
12.9 |
23.0 |
12.7 |
| Waimate District |
47.8 |
0.0 |
0.0 |
0.0 |
0.0 |
49.5 |
59.7 |
| Chatham Islands |
0.0 |
0.0 |
0.0 |
8.7 |
0.0 |
0.0 |
9.4 |
| Waitaki District |
0.2 |
65.2 |
56.5 |
74.7 |
51.5 |
76.2 |
80.0 |
| Central Otago District |
38.4 |
6.2 |
76.7 |
2.5 |
23.0 |
0.5 |
7.3 |
| Queenstown-Lakes District |
30.7 |
44.0 |
26.0 |
39.9 |
71.5 |
36.0 |
43.4 |
| Dunedin City |
0.4 |
4.5 |
16.7 |
68.9 |
84.9 |
85.0 |
84.6 |
| Clutha District |
0.1 |
0.0 |
0.0 |
0.0 |
0.0 |
58.6 |
44.2 |
| Southland District |
1.0 |
3.2 |
6.3 |
5.7 |
13.5 |
35.5 |
34.2 |
| Gore District |
32.7 |
86.0 |
86.0 |
82.3 |
82.9 |
1.7 |
86.2 |
| Invercargill City |
0.0 |
0.0 |
99.2 |
96.7 |
99.8 |
99.5 |
100.1 |
Drinking water quality - Cryptosporidium, 2001 - 2008
| Territorial authority |
Cryptosporidium compliance (% of
population) |
| 2001 |
2002 |
2003 |
2004 |
2005 |
2006/2007 |
2007/2008 |
| Far North District |
28.4 |
23.9 |
0.0 |
0.0 |
0.0 |
7.0 |
22.5 |
| Whangarei District |
2.0 |
2.0 |
2.0 |
1.8 |
0.1 |
82.0 |
73.2 |
| Kaipara District |
5.5 |
28.7 |
0.0 |
0.0 |
28.2 |
0.0 |
0.0 |
| Rodney District |
25.2 |
34.8 |
11.6 |
30.9 |
41.1 |
48.8 |
42.6 |
| North Shore City |
95.1 |
92.7 |
94.3 |
98.8 |
97.3 |
95.8 |
96.3 |
| Waitakere City |
96.2 |
96.0 |
0.2 |
92.8 |
98.8 |
99.6 |
100.8 |
| Auckland City |
93.8 |
91.0 |
14.4 |
90.5 |
90.1 |
92.9 |
91.4 |
| Manukau City |
96.2 |
92.9 |
89.5 |
94.2 |
93.4 |
98.0 |
95.9 |
| Papakura District |
96.7 |
93.2 |
91.1 |
90.7 |
88.1 |
97.0 |
99.7 |
| Franklin District |
0.0 |
1.0 |
1.0 |
1.0 |
1.0 |
0.0 |
0.0 |
| Thames-Coromandel District |
5.8 |
18.8 |
26.1 |
51.1 |
25.8 |
0.0 |
0.0 |
| Hauraki District |
0.0 |
0.0 |
48.6 |
0.0 |
0.0 |
25.3 |
0.0 |
| Waikato District |
38.1 |
43.2 |
38.4 |
41.6 |
37.1 |
5.5 |
5.5 |
| Matamata-Piako District |
32.6 |
1.2 |
18.7 |
1.7 |
0.4 |
0.6 |
0.0 |
| Hamilton City |
0.0 |
94.7 |
92.4 |
100.7 |
99.0 |
97.3 |
96.8 |
| Waipa District |
8.2 |
3.0 |
2.9 |
0.0 |
7.6 |
0.0 |
0.0 |
| Otorohanga District |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
| South Waikato District |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
| Waitomo District |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
| Taupo District |
24.1 |
23.9 |
24.4 |
0.0 |
0.0 |
0.0 |
0.0 |
| Western Bay of Plenty District |
10.3 |
10.2 |
10.0 |
9.8 |
36.9 |
63.0 |
62.3 |
| Tauranga City |
0.0 |
0.0 |
89.7 |
103.2 |
100.7 |
97.3 |
95.4 |
| Rotorua District |
13.2 |
1.6 |
0.3 |
0.0 |
0.0 |
0.0 |
0.0 |
| Whakatane District |
44.0 |
61.4 |
61.4 |
0.0 |
0.0 |
0.0 |
0.0 |
| Kawerau District |
109.7 |
109.4 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
| Opotiki District |
44.3 |
44.4 |
44.4 |
0.0 |
0.0 |
0.0 |
0.0 |
| Gisborne District |
0.0 |
65.9 |
65.5 |
66.3 |
66.3 |
0.0 |
0.0 |
| Wairoa District |
50.2 |
50.6 |
51.3 |
0.0 |
52.8 |
53.3 |
0.0 |
| Hastings District |
86.6 |
88.6 |
88.7 |
39.4 |
41.9 |
85.9 |
85.9 |
| Napier City |
40.0 |
88.6 |
88.0 |
87.5 |
87.0 |
89.3 |
89.1 |
| Central Hawke's Bay District |
0.0 |
0.0 |
4.3 |
4.3 |
4.3 |
4.3 |
4.3 |
| New Plymouth District |
0.0 |
69.5 |
70.5 |
69.6 |
76.1 |
76.2 |
75.9 |
| Stratford District |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
| South Taranaki District |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
| Ruapehu District |
0.0 |
35.1 |
19.0 |
0.0 |
36.6 |
36.3 |
37.0 |
| Whanganui District |
0.8 |
0.8 |
69.2 |
1.8 |
92.5 |
93.5 |
94.3 |
| Rangitikei District |
14.2 |
2.9 |
17.2 |
0.0 |
0.0 |
0.0 |
0.0 |
| Manawatu District |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
| Palmerston North City |
119.5 |
118.9 |
101.6 |
115.8 |
115.5 |
99.2 |
105.9 |
| Tararua District |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
| Horowhenua District |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
| Kapiti Coast District |
73.1 |
71.9 |
70.6 |
0.0 |
0.0 |
66.9 |
65.9 |
| Porirua City |
94.2 |
93.3 |
92.7 |
92.4 |
92.5 |
92.0 |
91.5 |
| Upper Hutt City |
91.8 |
90.9 |
90.0 |
89.1 |
88.4 |
86.6 |
86.2 |
| Hutt City |
95.3 |
95.7 |
95.2 |
95.1 |
94.8 |
94.6 |
94.4 |
| Wellington City |
82.9 |
94.7 |
92.4 |
90.7 |
89.5 |
86.7 |
85.6 |
| Masterton District |
0.0 |
81.5 |
0.0 |
0.0 |
81.5 |
82.3 |
81.9 |
| Carterton District |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
| South Wairarapa District |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
| Tasman District |
8.7 |
8.5 |
9.1 |
31.5 |
31.2 |
4.3 |
4.3 |
| Nelson City |
0.0 |
0.0 |
0.0 |
97.7 |
97.5 |
96.8 |
96.2 |
| Marlborough District |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
| Kaikoura District |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
66.3 |
| Buller District |
53.8 |
55.3 |
0.0 |
1.4 |
1.4 |
1.4 |
1.4 |
| Grey District |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
1.3 |
1.2 |
| Westland District |
0.0 |
2.8 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
| Hurunui District |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
| Waimakariri District |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
| Christchurch City |
87.7 |
86.3 |
84.9 |
87.5 |
86.5 |
86.1 |
85.3 |
| Selwyn District |
0.0 |
1.4 |
4.8 |
16.2 |
15.5 |
14.6 |
10.9 |
| Ashburton District |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
57.3 |
1.3 |
| Timaru District |
0.0 |
0.0 |
62.0 |
61.5 |
62.6 |
65.1 |
62.3 |
| Mackenzie District |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
5.1 |
0.0 |
| Waimate District |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
| Chatham Islands |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
| Waitaki District |
0.6 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
50.7 |
| Central Otago District |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
| Queenstown-Lakes District |
1.7 |
1.6 |
1.5 |
1.4 |
1.3 |
0.0 |
0.7 |
| Dunedin City |
0.4 |
0.0 |
8.0 |
8.9 |
7.5 |
78.3 |
78.0 |
| Clutha District |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
| Southland District |
0.0 |
13.5 |
13.8 |
11.0 |
10.6 |
7.8 |
7.8 |
| Gore District |
65.6 |
16.3 |
15.8 |
15.9 |
16.0 |
16.3 |
0.0 |
| Invercargill City |
0.0 |
100.3 |
2.5 |
2.3 |
1.7 |
99.5 |
99.5 |
|
