Contaminated Sites Remediation Fund - Project funding for the 2016/17 financial year

This page provides information on projects that have been awarded funding from the Contaminated Sites Remediation Fund and are undertaking physical investigation and/or remedial works in the 2016/17 financial year.

About the projects

The projects below have received funding from the Contaminated Sites Remediation Fund (CSRF). Funds are for the investigation, remedial planning and remediation of contaminated sites. Several of the projects being funded are on the CSRF Priority List.

Prohibition and Alexander Mines

Total project cost

$3.02M

CSRF funding

$1.5M

Phase

4 – Remediation

Council/Landowner

West Coast Regional Council/Department of Conservation

Location

Prohibition Mine - Waiuta, West Coast 
Alexander Mine - Alexander River, Grey Valley, West Coast

CSRF Priority List No.

Prohibition Mine = 1 
Alexander Mine = 2

Project description

The Prohibition ore roasting plant site operated from 1935 to 1951 near the Prohibition Shaft of the Prohibition Mine (Waiuta Gold Mine) on the West Coast. Arsenic bearing sulphides were roasted at the plant to release gold. Processing residue containing high concentrations of arsenic in the form of arsenolite accumulated throughout the site. The objective for the site is to reduce the risk to the general public and the environment from arsenic contaminated soil and water.

The Alexander Mine was a hard rock gold mine that operated between 1924 and 1943 and included a similar ore roasting plant to Prohibition Mine. A processing plant area that used cyanide to extract the gold is located 300 metres downstream of the ore roasting plant. The mining activity has resulted in significant arsenic, mercury and cyanide contamination of the soil at the site. The objective for the site is to reduce the risk to the general public and the environment from contaminated soil and water.

Project update

Phase 4 - The Department of Conservation has developed a remedial action plan and tendered the works for the remediation of the Prohibition Mines. Following the identification of additional contamination a further $1.07M from the CSRF was sought and approved for the remediation phase of the project. The remedial design for the Alexander Mine has commenced and it is expected that works will commence in early 2017.
Remedial works began on the Prohibition Mine in August 2016.

For further information on the Prohibition and Alexander Mines project email Jose Watson: Jwatson@doc.govt.nz

Kopeopeo Canal

Total project cost

$11,164,900

CSRF funding

$4,720,950

Phase

3 – Remedial Planning
4 – Remediation

Council/Landowner

Bay of Plenty Regional Council

Location

Whakatane

CSRF Priority List No.

3

Project description

The Kopeopeo Canal was constructed to convey surface run-off and storm water discharge from low lying farmland in the Rangitaiki Plains into the Whakatane Estuary. Between 1950 and 1989 the canal received dioxin contaminated surface run-off and storm water discharges from the NZ Forest Products Ltd. Sawmill. Investigations in 2005 found the levels of dioxins in the sediments and in eels were elevated and a concern for human health.

The objective of the project is to remove the contaminated sediments within the Kopeopeo Canal and place them in secure storage cells designed to aid the bioremediation of the dioxins.

Project update

Phase 3 – Following an appeal to the Environment Court, the project was granted Resource consent in 2015. However in response to the community’s concerns regarding the proposed methodology, the Bay of Plenty Regional Council (BOPRC) has revised the project methodology to eliminate or mitigate these concerns. The methodology change has required BOPRC to seek a variation to their resource consent.

Phase 4 – BOPRC has tendered the remedial works and is seeking to appoint a contractor.
Although dependent on the outcomes of the tender process and the request for a variation to their resource consent, remedial works are due to start in the latter half of 2016.

For further information on the Kopeopeo project email Brendon Love at Bay of Plenty Regional Council: Brendon.Love@boprc.govt.nz

See also Kopeopeo Canal contamination remediation project [Bay of Plenty Regional Council website].

Calwell Slipway, Nelson

Total project cost

$8.311 M

CSRF funding

$4.155 M

Phase

4 – Remediation 

Council/Landowner

Nelson City Council/Port Nelson Limited

Location

Nelson

CSRF Priority List No.

4

Project description

The Calwell Slipway is located at Port Nelson. Contamination began in 1970 due to the inadequate containment and inappropriate disposal of wash water. Port Nelson needs to dredge the basin to allow navigation, but the presence of antifouling contaminants such as tributyltin and copper in the sediments requires the development of alternative treatment and disposal options.

The objective of the project is to dredge the Calwell Slipway basin and deposit the cement stabilised contaminated sediments in a purpose-built reclamation.

Project update

Phase 3 – Port Nelson has completed the detailed remedial planning for the site.

Phase 4 – Port Nelson has applied for resource consent for the remediation of the site and has currently scheduled the dredging of the slipway basin to begin in early 2017.

For further information on the Calwell Slipway project email Kelly Leonard at Port Nelson: Kelly.Leonard@portnelson.co.nz

Concours Electroplaters, Timaru

Total project cost

$974,660

CSRF funding

$974,660

Phase

2 – Site Investigation

Council

Environment Canterbury

Location

Timaru

CSRF Priority List No.

5

Project description

An electroplating business has operated from the Concours site for over 50 years. In addition to this, a large volume of hazardous electroplating wastes has been collected and stored on the site.

In February 2015, a fire broke out on the site. Since then, WorkSafe and the Environmental Protection Authority have been working with the site owner to bring it into compliance.

A preliminary site investigation which took place in June 2016 has indicated that the soil on the site may be contaminated from the electroplating works and hazardous waste stored on the site.

The purpose of this project is to remove the hazardous substances from the site, perform a building survey and undertake a detailed site investigation to provide an understanding about what potential risks the site may pose.

Project update

Phase 2 – Project planning for the investigation of the site has begun.

For further information on the Concours Electroplaters project email Rowan Latham at Environment Canterbury: Rowan.Latham@ecan.govt.nz  

Note

Total project cost refers only to project phases (site investigation, remedial planning, and/or remediation) that have had CSRF funding approved. Total estimated remedial costs for the project are not included unless an application for the remediation phase has been approved.

Reviewed:
05/08/16