Site Remediation Contracting

Transcription

1 Site Remediation Contracting Hydrock provides a full turnkey package for the remediation of sites, dealing with contaminated soils and groundwater as well as demolition and reclamation: Fixed Price to Achieve Regulatory Sign Off All sites All technologies All plant Fully accredited Best value commercial solutions What we can do for you: We will do the job quickly and simply We will find the best possible solution to save you money Our quality and safety standards are second to none Our experience and expertise will add value and reduce project costs Hydrock have performed to an outstanding level given the complex nature of the project. We have been impressed how you have coped well with the large volume of work within tight deadlines and always provide value for money. Hydrock always come with solutions and not problems. Alison Hukin, Environment Agency

2 Our Services A specialist contracting company focusing on land remediation and reclamation with over 16 years experience, from the simplest site to complex remediation projects. Whether the complexity is the contamination in the ground, the logistics of the works, the location of the site or the stakeholders, including community issues, we ve been there before and solved the problem before. We use our in-house experience and capability to deliver contracts quickly, efficiently, and competitively to minimise risk and off-site disposals and to maximise material reuse and achieve regulatory sign off. We offer complete targeted solutions from conceptual design, through enabling works and contamination remediation to final validation working in partnership with you, the client, and your advisors. Hydrock always provides value engineered guaranteed solutions. The choice of remedial approach is key to delivering the most cost effective project. Through the successful selection and use of some highly innovative technologies, we have created high value backfill material from waste destined for landfill, as well as treating soil and groundwater in-situ providing huge time and cost savings. We always remember that meeting the project requirements and framework must be our primary focus. Our customer satisfaction surveys over the last four years have shown consistently high results across a range of areas including value engineering, environmental considerations, health and safety, responsiveness and adherence to programme, with an average satisfaction level of 92%. Some of our recent clients include: Barratt Homes Bellway Homes Bloor Homes CEMEX Dean and Dyball DP World EDF Environment Agency Hartwell Group Homes and Communities Agency Linden Homes Ministry of Defence Persimmon Homes South East England Development Agency South Oxfordshire District Council St Modwen Taylor Wimpey Wales & West Utilities Wiltshire Council

3 All Sites Over the last 16 years we have remediated 100 s of active and former industrial sites, ranging from 100ha works to a single back garden. Sites remediated also include inert and non-hazardous landfills, industrial facilities, sensitive military sites, former gas works, chemical works, public open spaces and school playing fields, as well as numerous fuel stations and spills. The nature and complex history of some of these sites has given us extensive experience of dealing with a wide range of contaminants including industrial organic compounds, chlorinated solvents, coal tar, spent oxides complex cyanides (blue billy), metals, poly aromatic hydrocarbons (PAHs), petroleum hydrocarbons (TPH), asbestos, phenols and cresols. All Technologies Hydrock has the in-house experience and expertise to deliver remediation solutions from simple dig and dump to any one of a combination of the following remediation technologies, which may be required on sites with a more complex contamination history: Physical Chemical Excavation & reuse (materials In-situ chemical oxidation (Chemox) management plan) Ex-situ stabilisation/solidification Excavation & off-site treatment In-situ stabilisation/solidification Screening & waste reduction Permeable reactive barriers Soil washing Reduction processes Soil vapour extraction (SVE) Ion exchange Multi-phase extraction (MPE) Dual-phase vacuum extraction Biological (DPVE) Ex-situ bioremediation Air sparging Aerobic & anaerobic digestion Groundwater pump and treat Bio-sparging Free-phase product skimming Thermal Oil/water separation Steam enhanced vacuum extraction Sand filtration Mobile thermal treatment Cover Systems All Our Own Plant Using our own extensive stock and fully-trained maintenance and fitting crew, we have full control over maintenance, quality, safety standards and availability of any plant and machinery required for your project: MTL (Environmental Permit) [EA/EPR/AB3230RB/V002] Soil Vapour Extraction / Air Sparging System (2No.) Bioremediation System (3No.) Chemical Oxidation System (2No.) Dual Phase Extraction Systems Multi Phase Extraction Systems Modified Screener for Soil Stabilisation Vikoma Disc Skimmer (5 No.) Allu Screener Bucket Riddle Bucket Borehole Pumps (>30No.) Pneumatic Skimmer Pumps (>20No.) Oil/ Water Separators (>10No.) Settling Tanks (>10No.) GA2000 Field Gas Analysers (2No.) PID Gas Analyser (6No.) XRF Field Analyser (2No.) Hand Held Window Sampler (4No.) Dewatering Geo-Socks (>20No.) Plus a wide range of earthworks plant (excavators,dumpers, bowsers) Hydrock investigated the problem, came up with the best commercial plan and as principal contractors will make sure that they stick to the plan whilst carefully managing Health, Safety and Environmental Risks. They make our life easy! Dan Panormo, Principal Development Surveyor, CEMEX.

4 Best Value Commercial Solutions Working directly for industrial site owners and developers, as well as regeneration bodies such as the Homes and Communities Agency and the Environment Agency, Hydrock has remediated 100 s of sites and delivered some of the most challenging remediation schemes in the UK. We can count eighteen of the top twenty residential developers, Cemex and the Environment Agency amongst our key clients. Results we have achieved for our clients include millions of pounds of savings on development costs, and even finding one happy client an extra 4 acres of land! We use our contamination and geotechnical expertise to ensure land owners, land agents and developers fully understand the technical, programme and cost issues of their project and unlock the full commercial potential of brownfield sites. We find commercial solutions to challenging technical problems. Fully Accredited Our ability to deliver added value and reduce project costs comes entirely through our technical expertise and experience, not at the expense of quality or safety. In addition to having an integrated management system fully accredited by UKAS to ISO 9001, ISO and OHSAS 18001, we have WAMITAB (Waste Management Industry Training and Advisory Board) accredited personnel and all project managers hold the SMSTS Health and Safety Qualification. In conjunction with our Mobile Treatment Licence and EA Waste Carrier Licence, this gives us total flexibility to safely deliver the remediation solution best suited to your project. For further information please contact Dr Mike Higgins on , or one of our regional offices. South West & Wales - Richard Lloyd-James T +44 (0) E bristol@hydrock.com Midlands & North - Karen Storey T +44 (0) E northampton@hydrock.com South & South East - Paul Garrett T +44 (0) E woking@hydrock.com London & Eastern - Andy Jowett T +44 (0) E northampton@hydrock.com

5 Our Projects 1. Former Railway Yard and Landfill, Northampton Hydrock was appointed by the Homes and Communities Agency to design and deliver remediation works at the Ransome Road part of the Northampton Brownfield Initiative, for a proposed development of up to 800 new homes. Remediation works covered a 10 hectare area, comprising a former railway siding, transport yard, plant compound and former landfill, and focused on mitigating the risks to controlled waters through the excavation and onsite biological treatment of hydrocarbon impacted soils. A further phase of works will involve providing a clean cover system on the landfill site. Through supplementary investigation and risk assessment, Hydrock was able to negotiate with the regulators a revised remediation strategy which was delivered as Principal Contractor to ensure substantial cost savings for the client against previous schemes. 2. Former BP Transit Site, Swansea, Wales Hydrock was appointed as Principal Contractor by St Modwen to remediate the 69 acre former BP Oil Storage and Distribution facility prior to the development of the Science and Innovation Campus for Swansea University in Swansea Bay. Several remediation technologies were employed to treat the various areas of gross hydrocarbon contamination. Soil was excavated and bioremediated to site-specific target values. Free product was recovered from the groundwater with skimmer pumps and the abstracted groundwater was treated via a groundwater treatment plant, designed, built and operated by Hydrock. Chemical oxidation was undertaken in areas of this sensitive site. Through the deployment of innovative remediation techniques at a challenging site, with tight time constraints, for a lump sum all risk price, all treated soils and groundwater were suitable for reuse on site and the soil disposal volumes were reduced to virtually zero. 3. Proposed Hinkley Point C Nuclear Power Station, Somerset EDF Energy appointed Hydrock for the excavation, screening and physical treatment / disposal of asbestos impacted soils at the site of the proposed Hinkley Point C Nuclear Power Station. The works have involved the remediation of substantial volumes of soils which was completed under HSE License and an EA approved Materials Management Plan. Asbestos remediation was delivered within the tightly controlled safety environments for these materials and Nuclear Safety Systems requirements. Hydrock worked with specialist support from licensed contractors to a tight programme minimising impact to ongoing operations. Removal of soils off-site was minimised through material re-use on site. 4. Residential Gardens (Former Gasworks), South Oxfordshire Hydrock was appointed as Principal Contractor to undertake the remediation of nine individual domestic gardens, across two sites, as part of the Part 2a Contaminated Land Capital Projects remediation programme for South Oxfordshire District Council. Both sites were former coal gas production sites which had been redeveloped into residential properties in the 1970s and 1980s. The remediation works undertaken by Hydrock were for the removal of shallow contamination and restoration of the gardens, with the properties remaining occupied throughout the works. Hydrock site engineers worked closely with the local authority and residents during the two month contract to reduce disruption to a minimum. Physical Excavation & reuse Disposal and off-site treatment Screening & waste reduction SVE, MPE, DPE Groundwater pump and treat Free-phase product skimming Cover Systems Chemical Chemical oxidation Stabilisation/solidification Soil Flushing Biological Ex-situ bioremediation South West & Wales - Richard Lloyd-James T +44 (0) E bristol@hydrock.com Midlands & North - Karen Storey T +44 (0) E northampton@hydrock.com South & South East - Paul Garrett T +44 (0) E woking@hydrock.com London & Eastern - Andy Jowett T +44 (0) E northampton@hydrock.com

6 Our Projects 5. Former Gasworks, Milford Haven and Pembroke Dock, Wales Hydrock has provided environmental guidance and specialist remediation contracting services for the former Milford Haven and Pembroke Dock Gasworks sites. Hydrock formulated a Design & Build solution which comprised the operation of a water treatment system, source removal of free hydrocarbon products and tars, discharge of treated groundwater under license to foul sewer and treatment of grossly contaminated soils at an off-site soil treatment facility. Delivery of this approach ensured that Wales & West Utilities were able to undertake works to remove statutory liabilities within a tight programme. 6. Former Gasworks and Industrial Works, Fenny Stratford Bellway Homes appointed Hydrock as Remediation Contractor for the reclamation and remediation works at the former Town Gas Works at Fenny Stratford, Milton Keynes. The site s industrial history included a gas works, printing facility and paint pigment manufacture, which led to significant gross contamination of the soils and groundwater. Through an innovative and sustainable approach, combining a number of remedial techniques including stabilisation/solidification, Hydrock was able to deliver substantial cost savings of over 40% for the client against previous estimates. 7. Former Cement Works, Rochester Hydrock was appointed by CEMEX for the demolition and remediation of a former cement works for a proposed mixed-used development. The 75ha site comprised a 13ha works area, a quarry (Grey Pit), a logistics yard and berth, and a former Cement Kiln Dust landfill. Hydrock designed and implemented a remediation scheme that included tank removal, demolition, asbestos removal, soil treatment (bioremediation and stabilisation/solidification) and groundwater treatment (free product recovery). Hydrock took an approach to the segregation of materials that, combined with the Materials Management Plan, meant that reuse and recycling was maximised and only asbestos materials were sent to landfill. The project was made viable by developing a thorough commercial understanding of the project asset opportunities and risks which enabled Hydrock to develop a zero cost-to-client solution. This approach is traditional in the demolition industry but innovative in funding wide-scale remediation. 8. Groundwater Treatment and Landfill Remediation, Helpston Two landfill sites at Helpston, near Peterborough, were used for the disposal of the agricultural pesticide mecoprop which led to widespread groundwater contamination. Helpston is the first orphan site of its kind with responsibility for remediation resting with the Environment Agency (EA). Hydrock was appointed by the EA in 2008 to continue the remediation works at the site through providing both specialist consulting and contracting expertise to the project. Over the past four years Hydrock has made significant improvement to the groundwater abstraction system and on site treatment plant to achieve hydraulic containment of the major pollution pathways. Hydrock has also undertaken a variety of remediation trials to assess the feasibility of accelerating source removal. This has led to the installation of a pilot aeration system at one of the former landfill sites to stimulate the biodegradation of mecoprop remaining within the waste mass. Initial results are very positive with significant reductions in mecoprop concentrations being recorded. Physical Excavation & reuse Disposal and off-site treatment Screening & waste reduction SVE, MPE, DPE Groundwater pump and treat Free-phase product skimming Cover Systems Chemical Chemical oxidation Stabilisation/solidification Soil Flushing Biological Ex-situ bioremediation South West & Wales - Richard Lloyd-James T +44 (0) E bristol@hydrock.com Midlands & North - Karen Storey T +44 (0) E northampton@hydrock.com South & South East - Paul Garrett T +44 (0) E woking@hydrock.com London & Eastern - Andy Jowett T +44 (0) E northampton@hydrock.com