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Guidelines on remediation of contaminated sites
The tender material must include a detailed description of the remedial project. Below,
an outline for the tender materials is provided:
 | Letter of invitation to tender |
| Contractor summary |
| Normal conditions (NC) |
| Special conditions (SC) |
| Special work descriptions (SWD) |
| Tender and settlement (TS) |
| Tender list (TL) |
| Drawings |
| Annex |
The letter of invitation to tender should include a list of the tender materials as
well as deadlines for submissions.
The summary forms part of the tender material and may conveniently form the background
of Special Work Descriptions (SWD). The summary is intended to be for information only,
and as such cannot replace documents in the tender material. The contractor summary must
include:
| Type of remedial measures. |
| Contamination composition and extent (the volume of soil or groundwater to
be removed/treated is stated). |
| Exceptional measures in connection with the remediation project (lowering
the groundwater table, water treatment, bunging, etc.) |
| Type and extent of technical installations to be removed in order to carry
out the project (pipes, cables, tanks, etc.). |
| Restoration form. |
Normal conditions describe general conditions for work and supply. In Denmark, AB92 is
generally used /35/.
Special conditions covers the variations and amendments which are applicable in
addition to normal conditions, AB92.
Special conditions should include information on:
| Briefing
A general presentation on the case and the developer is provided. Sub-sections could
include: |
| Project organisation, i.e. developer, building administration, contractors,
etc. |
| Site location (address and title number) |
| Project description (brief) |
| Basis for the contract (scope of project material) |
| Basis for agreement (normal conditions, developer invitation to tender,
building contractor tender). |
| Collateral and insurance (standard form for collateral is attached). |
| Execution of contract (workplan and subcontracts, project review, relations
with authorities, changes, unclear points, obstacles or similar conditions,
building-contractor management, site meetings, any collaboration with other contractors). |
| Developer liabilities to pay. |
| Deadlines and delays (including fines). |
| Completion of work. |
Works descriptions are instructions for the building contractors and include all work
and supplies in connection with the execution of the contract. The work descriptions are
often designated ‘Special Work Descriptions’. The work descriptions should
include information on:
| Background (description of the relevant contamination problem with a view to determining
purpose, working environment, description of remedial project, etc.). |
| Workplace organisation and operation (work area; position of site huts, materials,
access conditions, etc.; workplace organisation and operation; geo-technical information;
existing pipelines etc.; responsibilities, rights, and obligations; time schedule, safety
precautions; safety descriptions; assessment of relevant hazardous substances, etc.). |
| Clearing (general, reusable objects, grass, soil, plants, etc.). |
| The execution of work (description of the series of requirement specifications made for
individual projects). |
| Restoration (description of requirements of the appearance of the site upon work
completion, as regards paving, installation, plants, etc.). |
| Possible preparation of quality-assurance manual. |
Conditions and guidelines for filling out the tender list, and comments on individual
items on the tender list. With most remedial projects, the basis for tender and settlement
is small enough to be most appropriately included in the tender list.
Tender lists stating individual activities, any reservations, person or persons with
authority to negotiate, any alternative tenders, and any sub-contractors.
Drawings relevant to the tender material should be enclosed.
Annexes of relevant information are enclosed (investigation reports, lithologic logs,
time schedules stating deadlines).
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