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    Tarmac

    Tarmac
    Tyttenhanger Quarry & Landfill
    North Orbital Road
    A414 Colney Heath
    Nr St. Albans
    AL4 0RY
    United Kingdom
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    Certificate number: FM 503516
    Scope: The processing and supply of natural aggregates. The operation of an inert waste landfill site

    Standard/Scheme number or name Start Date Expiry Date
    ISO 9001:2015 2005-12-09 2027-01-12