Environmental Engineering Standards

Issue 1Operative from 1 July 2010

Whangarei District Council | Phone 09 430 4200 | www.wdc.govt.nz

Acknowledgements

We acknowledge the following councils for allowing us to use parts of their Standards/Codes of Practice in compiling this document:

Christchurch City Council

Waimakariri District Council

Whangarei District Council welcomes users of this document to copy parts of it for their own use, providing that appropriate acknowledgement of the source is made.

Enquiries regarding the document may be directed to the group manager Infrastructure and Services or the senior environmental engineering officer.

Amendments

No. Date Description

1. 20/7/2010 Correct 4.11.1: 2% to 5%: correct hyperlinks in 1.4.1.3

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Table of Contents

Section 1 Referenced Documents, Glossary and Abbreviations ................................................. 1

1.1 Referenced Documents ................................................................................................. 1

1.2 Glossary Definitions. See Whangarei District Plan Definitions ............................................ 5

1.3 Abbreviations ............................................................................................................. 12

1.4 General Requirements and Procedures ........................................................................... 13

1.4.1 General Requirements ................................................................................................. 13

1.4.1.1 General ..................................................................................................................... 13

1.4.1.2 Statutory Requirements ............................................................................................... 13

1.4.1.3 Developer's Representative ........................................................................................... 14

1.4.1.4 Fees and Charges ....................................................................................................... 14

1.4.1.5 Cost of the Work and Council Contributions ..................................................................... 14

1.4.1.6 Insurance .................................................................................................................. 15

1.5 General Investigation, Design, Certification and Role of the IQP ......................................... 16

1.5.1 Investigation .............................................................................................................. 16

1.5.2 Design ...................................................................................................................... 16

1.5.2.1 Design Life................................................................................................................. 16

1.5.3 Certification ............................................................................................................... 16

1.5.3.1 Design Stage .............................................................................................................. 17

1.5.3.2 Post Construction ........................................................................................................ 17

1.5.4 The Role of the IQP ..................................................................................................... 17

Table 1.1 Specialist Aspects that Require an Independent Qualified Person (IQP) for Investigation, Calculations, Design, Supervision and Certification ........................................................... 18

1.6 Resource Consent Applications ...................................................................................... 19

1.6.1 Initial Application Stage (Subdivisions and Land Use Consents) .......................................... 19

1.6.2 Post Consent Approval Stage (Subdivisions) .................................................................... 20

1.6.2.1 Engineering Plan Approvals for Construction .................................................................... 20

1.6.2.2 Approval by Council ..................................................................................................... 20

1.6.2.3 Supporting Information and Calculations ......................................................................... 20

1.6.2.4 Assessments/Reviews of Reports and/or Designs ............................................................. 21

1.7 Drafting Standards ...................................................................................................... 22

1.7.1 General ..................................................................................................................... 22

1.7.2 Survey Co-ordinates and Levels ..................................................................................... 22

1.7.2.1 Asset Data/Levels ....................................................................................................... 22

1.7.2.2 Subdivision Survey Parcel Boundary Elements .................................................................. 22

1.7.3 Plan General .............................................................................................................. 22

1.7.4 Title Blocks ................................................................................................................ 23

1.7.5 Scales ....................................................................................................................... 23

Table 1.2 Preferred Scales ......................................................................................................... 23

1.7.6 Hard Copy Format ....................................................................................................... 23

1.7.7 Electronic Formats ...................................................................................................... 24

1.8 Content of Plans ......................................................................................................... 25

1.8.1 Geotechnical See Section 2 .......................................................................................... 25

1.8.2 Earthworks ................................................................................................................ 25

1.8.3 Roads and Access See Section 3 ................................................................................... 25

1.8.4 General Services ......................................................................................................... 25

1.8.5 Stormwater See Section 4 ........................................................................................... 25

1.8.6 Wastewater See Section 5 ........................................................................................... 26

1.8.6.1 Reticulated Systems .................................................................................................... 26

1.8.6.2 On-site Systems .......................................................................................................... 26

1.8.7 Water Supply See Section 6 ......................................................................................... 26

1.8.8 Fire Fighting See Section 6 .......................................................................................... 26

1.8.8.1 Reticulated Areas ........................................................................................................ 26

1.8.8.2 Non-reticulated Areas .................................................................................................. 26

1.8.9 Reserves and Landscaping See Section 7 ....................................................................... 27

1.8.10 Electricity, Telecommunications and Gas See Section 8 .................................................... 27

1.8.11 Lighting ..................................................................................................................... 27

1.9 Construction Management Plan ..................................................................................... 28

1.10 Construction Works Site Inspections and Approvals ....................................................... 29

1.10.1 Health and Safety ....................................................................................................... 29

10/4746

1.10.2 Commencement of Work .............................................................................................. 29

1.10.3 Noise and Hours of Work .............................................................................................. 29

1.10.4 Registered contractors and Licensed contractors .............................................................. 30

1.10.5 Site Inspections .......................................................................................................... 30

1.10.6 Testing ...................................................................................................................... 30

1.10.7 Colour of Pipes and Ducts ............................................................................................ 31

Table 1.3 Pipe Colours ....................................................