Appendix 5: Summary of information on costs from Kaipara District Council records

Inquiry into the Mangawhai community wastewater scheme.
Date Document Capital cost ($million) Operating cost per year ($) Other costs Comment
May 1999 Preferred Options report 10.84 62,000 Capital cost also stated as being $7.7 million
March 2002 Wastewater benchmark design, Beca 18.0 290,000 in 2002
375,000 in 2027
Includes $2.5 million contingency and $1.3 million for additional reticulation in 2015
August 2002 Paper to the Council recommending preferred proponent 23.5 (net present value)
13.5 (guaranteed maximum price)
570,000 to 980,000
May 2003 Paper to the Council from Chief Executive 15.0 500,300 in year 1
1,115,800 in year 25
Financing rate 7.62% (5 year interest only loan) Based on population of 1350 rising to 2800
Capital cost includes most expensive disposal option
November 2003 Stage 2 SWSS application and additional information provided 16.0 + 2.5 house connection costs
16.8 interim guaranteed maximum price
Initially 600,000 excluding inflation System design based on an expected capacity of 7500 equivalent population
February 2004 Paper to the Council from Chief Executive 17.5
21.7 (net present value)

Capital cost includes:

  • $15.6 million construction
  • $0.8 million council fees
  • $1.1 million project fees (financing, legal, interest)
June 2004 Long-Term Council Community Plan 17.5 1,712,000 in year 1 (includes depreciation)
August 2004 Paper to the Council from Chief Executive 19.0 560,000 in year 1 5 year fixed interest loan

Capital cost includes:

  • $16.1 million construction
  • $2.9 million fees and interest
August 2005 Council minutes recording information provided by Chief Executive 26.264 711,050 in year 1 Caters for up to 1970 sections
October 2005 Project Deed 26.264923 (guaranteed maximum price) 711,050 plus power costs (and 10% of power costs)

Project costs of $29.8 million includes:

  • $2.7 million financing costs
  • $0.8 million Council costs (note did not include all project management costs)
February 2006 Statement of Proposal 35.6 711,050 in year 1 Based on 1970 allotments, but treatment plant capacity between 2500 and 3000 allotments
Includes financing costs and Council fees
June 2006 Long-Term Council Community Plan 35.6 711,050 in year 1 As above in Statement of Proposal
October 2006 Council minutes setting out presentation provided by Chief Executive at meeting 42.638 + purchase price for farm

Total cost of $57.764 million includes:

  • additional reticulation ($13.050 million)
  • part of farm costs, pipeline, irrigation ($11.1 million)
  • house connections ($2.35 million)
  • Council costs and finance fees ($10.126 million)
December 2007 Project Deed 37.835211 (guaranteed maximum) 930,166 in year 1 $53 million loan from ABN Amro Contract for 1216 sections only, additional sections to be covered by a modification
Water treatment plant capacity 2000+ properties
March 2008 Paper to the Council from Chief Executive 44 1,000,000

Total costs $57.7 million includes:

  • $5.5 million for future modifications, project management fees of $3 million
  • financing costs of $5.2 million and farm
June 2009 Long-Term Council Community Plan 50.526 5,348,000 in year 1 (includes depreciation)
July 2009 MDHL invoice for sale of plant and reticulation assets 51.477 incl GST Invoice includes construction costs, ABN Amro financing costs, as well as $0.8 million provided to Council to cover its costs
January 2011 PowerPoint presentation on project review prepared by Beca 46.4

Total project costs $63.3 million, includes:

  • modifications ($8.6 million)
  • project management fees ($4.5 million)
  • financing costs ($5.2 million) and
  • farm ($7.2 million)
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