Contaminated land

Tonkin + Taylor (T+T) have provided specialist • Gobus (NZ wide) contaminated land management services for over • Christchurch City Council 50 years. Our staff have been involved in significant • NZ Steel/Bluescope brownfield development and research projects, • NZ Insulations (Christchurch and Temuka) practical trials and development of protocols for • Methven Tapmakers (Dunedin) investigation, sampling and remediation. • NZTA surplus land ( wide)

We have completed many notable contaminated site • Rymans Healthcare (New Zealand wide) and groundwater remediation projects throughout • (, ) New Zealand. Our staff have developed innovative • Siemens/United Networks Ltd (North Island) solutions and are known for implementing new • Petrol stations and truck stops (NZ wide) contaminated land remediation technologies. • Ajax Industries (Mt Wellington, Auckland) • NZ Post Auckland Regional Mail facility Expertise • Former NECAL/ESR laboratories. We have experience in all areas of soil and Site investigations groundwater contamination chemistry and We have completed many hundreds of preliminary processes, in New Zealand and overseas. Our site investigations (PSI) and detailed site strengths lie in site investigation, risk assessment investigations (DSI). These are often followed by and development of optimal practical remediation design of remedial works, regional council and NES solutions. We have worked in a wide range of soil consent applications and monitoring. industries, with many different soil and groundwater contaminants. Our team is also experienced in a wide range of hazardous and industrial activities and contaminants. Pre-purchase assessments These include petroleum hydrocarbons, chlorinated We offer a range of pre-purchase or sale and oxygenated solvents, heavy metals, asbestos, assessments and audit services. Our internationally PCBs, PCP and other timber treatment chemicals, respected team of site contamination specialists pesticides, herbicides and PFAS. identify potential contamination and assess its cost and use constraints significance. Risk assessments We have recently completed pre-purchase We are expert environmental risk assessors, with assessments for: a wide range of experience in risk assessment work. This includes simple qualitative evaluations, • A & G Price (Thames) semi-quantitative and quantitative techniques and • Masport Industries (Auckland) extensive quantitative modelling. • Lion Brewery (Newmarket, Auckland) • Christchurch Airport 

Our staff are trained in the latest USEPA models, and Remediation are able to apply these techniques to real-life issues We have completed a large number of successful and achieve useful and applicable results. remediation projects. These include physical clean-up Examples of our risk assessment projects include: works, clean-up validation, post-clean-up monitoring, • Quantitative human health and environmental and management and regulatory ‘sign-off’. risk assessments for a variety of sites (including Our team are leaders in brownfield redevelopment drycleaning, bitumen plants, gasworks, landfills works and remediation projects. and chemical, solvent and pesticide manufacturing and storage sites) Examples of our remediation projects include: • Qualitative risk assessment for many timber • Remediation of over 30 sites contaminated by timber treatment, gasworks, service station, landfill and treatment chemicals (CCA, Boron and PCP) intended pesticide disposal sites for industrial and residential use • Semi-quantitative risk assessment of the Mobil • Redevelopment of eight former gasworks sites in Oil Seaview Terminal and Caltex’s Timaru Terminal New Zealand, including the prestigious Beaumont • Government (FRST) funded research to develop Quarter development on the former Auckland New Zealand-specific environment risk gasworks site assessment modelling tools. • Remediation of a range of small industry sites for Policy and management commercial and residential use, including metal working, chemical storage and manufacturing, We also prepare site monitoring, management coatings and resins, and automotive industries and contingency plans for development projects • One-off remediation programme for a number of and to satisfy resource consent requirements. Carter Holt Harvey contaminated sites, including Our practical contaminated site management the construction of two hazardous waste experience can help regulatory authorities develop containment cells policies and implementation strategies to manage contaminated sites. • The assessment and remediation of nine childcare centres in Auckland for Auckland Council Examples of our work include preparation of: • Remediation of asbestos contaminated soil • Contaminated Site Register Database and Code associated with demolition material and fill for a of Practice for Marlborough District Council range of public and private facilities for CERA, MoE, • Technical Manual and Management Plan for MoH and Auckland Council. Wellington Regional Council • Redeveiopment of sites affected by vapour intrusion, • Regional Management Plan (a qualitative risk including pre emtive mitigation measures for buildings assessment and action plan) for Northland Regional Council • Contaminated Site Assessment and Management Plan for Regional Council • Contaminated Site Database and Management Strategy for Taranaki Regional Council • Contaminated Site Screening Guide for District Council.