Contamination & WAC Testing

As part of our Group of Companies, ACS Environmental Testing offer an efficient and reliable analysis service using various test leaching procedures specified by the Environment Agency (BS EN 12457-2:2002, BS EN 12457-3:2002).
The leachate produced by this procedure is analysed in accordance with strict procedures, and the results from some of these tests can then be assessed in accordance with Waste Acceptance Criteria (WAC) to determine the appropriate class of landfill to accept the waste.

The Landfill Directive (2010) requires that before waste can be sent to landfill, all of the properties of the waste that determine its suitability for landfill must be known. The introduction of the Waste Acceptance Criteria (WAC) aims to obtain greater control of the waste disposed of at landfills to minimise the impact of this form of disposal.


Landfill is by far the cheapest disposal route for waste. It is therefore cost effective to sample waste in accordance with strict procedures, and test the waste to determine whether it meets the WAC criteria. Where waste does not meet the WAC criteria, it is possible that the waste could be processed to minimise the costs associated with hazardous waste disposal.

ACS Environmental Testing Ltd offer WAC testing as well as Full Waste Classification Reporting.

The following parameters are tested from the solid material:

  • Total Organic Carbon
  • Loss on Ignition
  • BTEX (Benzene, Touluene, Ethylbenzene & Xylene)
  • PCB (Polychlorinated Biphenols) (7 x congeners)
  • Mineral Oil (TPH) (Total Petroleum Hydrocarbons)
  • Total PAH (Polyaromatic Hydrocarbons)
  • pH

Eluate Analysis – The following parameters are tested from the laboratory prepared leachate:

  • pH
  • Conductivity
  • Metals
  • Anions
  • Total Dissolved Solids
  • Phenol Index
  • Dissolved Organic Carbon

Deviating Samples

ACS Environmental Testing Ltd strictly comply with the requirements necessary to meet the United Kingdom Accreditation Service (UKAS) Policy on Deviating Samples (TPS 63).

In order to provide a high level of service to our clients, we provide free sample containers to maintain sample integrity as much as possible after sampling. The sample containers are selected specifically to ensure they are the most suitable to meet our clients requirements for all analyses that we currently offer.

Samples are defined as deviating when they do not meet specific criteria and they may jeopardise the validity of the reported test result.

Examples of deviating samples would include:

  • Incorrect sample container
  • Inappropriate storage temperature
  • Incorrect or lack of preservatives used for time critical parameters
  • No time or date of sampling has been supplied
  • Analysis performed outside of quoted stability holding times

For more information regarding our Deviating samples procedure please see our downloads page.

Please see below for a list of the services provided by ACS;

  • On-Site Testing Services

    ACS Testing offer a comprehensive range of professional On-Site Testing, all carried out by our fully trained Site Technicians

  • Aggregates & Soils Testing

    From our main Laboratory in Poole, Dorset, ACS Group of Companies provide quality testing and material consultancy for the construction and civil engineering industry.

  • Bituminous Testing

    Bituminous road surfacing materials are produced by mixing mineral aggregate with a bitumen binder in predetermined quantities and within defined temperature ranges.

  • Concrete Testing

    Concrete was the first service to be offered by ACS Testing back in 1987, since then we have increased our scope to cover a wide range of UKAS Accredited testing on fresh and hardened concrete, both on site and in our laboratories.

  • Mortar & Screed Testing

    Mortar has played a major role in construction since ancient times with the oldest example having been found in Israel and thought to date back 10,000 years.

  • Contamination & WAC Testing

    At ACS Environmental Testing we offer an efficient and reliable analysis service using various test leaching procedures specified by the Environment Agency.

  • Chemical Testing

    ACS Environmental Ltd was established in 2007 to complement the physical materials testing service provided by ACS Testing Ltd to offer a range of analytical services to clients in order to meet their overall needs.

  • Leachate & Water Analysis

    Our purpose built analytical laboratory enables ACS Environmental Testing Ltd to provide, in conjunction with our other group companies, a comprehensive sampling, monitoring and analysis service on a wide range of leachate and water samples.

  • Natural Stone Testing

    Our newly refurbished Stone Testing Laboratory has given us the opportunity to expand our testing scope as well as increase production and better improve on our turnaround of samples.

  • Site Laboratory Service

    Over the last twenty-five years, ACS Testing Ltd have supplied custom fitted Site Laboratories with Technicians to many construction sites and projects worldwide.

ACS Group of Companies offer a professional weekly collection service covering the South of England and Wales. See below for our coverage range;

ACS Testing Coverage Map

Contact One of the Team

If you require a collection that is outside of our usual range, please feel free to call us on 01202 622858 or contact us and we will do our best to accommodate your requirements.