This is an HTML version of an attachment to the Official Information request 'Total number of kilometers treated, with what total of chemicals, and the cost, in Auckland'.

 
 
9 September 2020 
LGOIMA No. 8140007270 
 (Please quote this in any correspondence) 
 
 
Hana Blackmore  
By email: [FYI request #13471 email] 
 
 
Tēnā koe Hana 
 
Local Government Official Information And Meetings Act 1987 
Weed control in Auckland 
 
I refer to your request, which we received on 10 August 2020, about weed control.  
I also refer to my email to you on 07 September 2020, extending the timeframe for 
us to respond to your request. Thank you for your patience while we have worked on 
this response. 
 
Weed Management is completed within the road corridor for the following outcomes:  
  
-  Ensure vegetation growing in the kerb and channel and open water channels 
does not interfere with water flow.  
-  Maintain the safety of pedestrians and road users by maintaining clear sight 
lines of street signage, reflective marker posts and minor streetscape assets 
as well as at intersections and roundabouts  
-  Control plant pests in accordance with the requirements of the Regional Pest 
Management Plan.  
-  Maintain the streetscape in a tidy and aesthetically pleasing condition.  
-  Prevent root intrusion causing damage to the road surface, kerb and channel, 
footpaths, and other road assets  
-  Maintain horizontal and vertical clearances over the road carriageway and 
footpaths  
 
Auckland’s moderate and wet climate makes the area particularly vulnerable to the 
detrimental effects of weeds. The climate causes vigorous growth, easy 
establishment, and increased infestation of weeds. The road corridor provides a 
dynamic environment for the spread of weeds including through vehicle and water 
dispersal. 
 
Since 2019, Auckland Council has undertaken the maintenance of the green spaces 
within the road corridor, under contract to and on behalf of Auckland Transport.  
 
Private Bag 92300, Auckland 1142  |  aucklandcouncil.govt.nz  |  Ph 09 301 0101 

 
Would you please supply for each Auckland area you manage (e.g. Central West, 
North Rural, Hibiscus & Bays, South East etc) for each year commencing 2012 
to 2019/20, the following 
 
1.The numbers of kms you treat[ed] for weed and vegetation control in each area 
 
We are unable to breakdown this information by year, however the number of 
kilometres treated has only increased slightly over the years, due to the growth of 
Auckland City. The below table contains 2015 data provided by Auckland Transport 
based on their Management areas.  
 
Auckland Transport 
Linear Kilometres 
Management Area 
Central 
583 
Central East 
487 
Hauraki Gulf Islands 
258 
North East 
573 
North Rural 
1,519 
North West 
488 
South East 
496 
South Rural 
1,213 
South West 
878 
West 
874 
Total 
7,369 
 
The below table contains 2019 data provided by Auckland Council based on their 
management areas (Local Board). 
 
Local Board 
Linear Kilometres 
Albert-Eden 
261 
Aotea Great Barrier 
110 
Devonport-Takapuna 
173 
Franklin 
1,234 
Henderson-Massey 
383 
Hibiscus and Bays 
473 
Howick 
553 
Kaipatiki 
229 
Mangere-Otahuhu 
230 
Manurewa 
268 
Maungakiekie-Tamaki 
251 
Orakei 
261 
Otara-Papatoetoe 
231 
Papakura 
258 
Puketapapa 
151 
Rodney 
1,521 
Upper Harbour 
290 
Waiheke 
152 
Waitakere Ranges 
365 
Waitemata  
217 
Whau 
199 
Total 
7,810 
 
 

Private Bag 92300, Auckland 1142  |  aucklandcouncil.govt.nz  |  Ph 09 301 0101 


 
2.the annual invoiced cost for weed and vegetation control for each area. 
 
The amount invoiced is outcome-based, therefore there is no budget line for specific 
tasks, such as weed management in the road corridor. 
Auckland Council invoiced Auckland Transport in the 2019/2020 financial year the 
sum of $9.5m for reimbursement of the Streetscape maintenance including mowing, 
litter collection, town centre cleaning and weed vegetation control across Auckland.  
 
3.the annual totals of the following chemicals (as active ingredient) used in each 
area  for  your  weed  and  vegetation  control:  glyphosate,  metsulfuran  methyl 
(meturon),  organosilicone,  diethanol  condensate  (fatty  acid)  &  any  other 
significant chemical. 
 
The information you have requested on annual totals is being collated to be 
published later this year. We are therefore refusing this part of your request under 
section 17(d) of the LGOIMA on the basis that the information will soon be publicly 
available.  
The decision by Auckland Council to release the information contained in this 
response was made by Jennifer Rose, Head of Business and Performance - 
Community Facilities.  
 
I hope you find this information useful. Should you believe Auckland Council has not 
responded appropriately to your request you have the right to seek a review of the 
decision from the Ombudsman.  
If you have any further queries please contact me on 09 301 0101, quoting LGOIMA 
No.8140007270.  
Ngā mihi 
 
 
Fernanda Maciel  
Privacy & Official Information BP 
Governance Services 
Private Bag 92300, Auckland 1142  |  aucklandcouncil.govt.nz  |  Ph 09 301 0101