CA18/2/1/94

Concepts

• mansfield
• water main refurbishment
• ca18/2/1/94
• construction work
• reed beds
• reed bed material disposal
• settlement ponds
• m
• transplant existing reeds
• new reeds

Location

Description

The Coal Authority currently operate 161 individual reed beds providing treatment capacity at 59 mine water treatment sites and 130 settlement ponds at 53 sites. The purpose of the mine water treatment sites is to remove iron that has been mobilised from old mine workings into groundwater. These mine water treatment sites operate by enabling oxidation of the iron, which is then precipitated as iron hydroxide (ochre) and settled in settlement ponds. The effluent from the settlement ponds is then passed through reed beds to polish the water before discharge to local water courses under discharge consents. The reed beds are planted with a variety of wetland plants that act primarily as filters to remove any remaining ochre from the water before it is discharged. Over time there is a build-up of ochre within the settlement ponds and biomass from reed growth together with the ochre and any wind-blown dust that is captured within the reed bed. For the reed beds and settlement ponds to operate correctly the available headroom for the water levels have to be maintained within an acceptable range. So an amount of this build up has to be removed periodically and disposed of through an environmentally sustainable route. To achieve the removal of the build-up within the reed beds and settlement ponds, we require a competent and experienced contractor to provide an environmentally sustainable disposable route for the reed bed and settlement ponds material. Permit required for reed bed material disposal: • Bespoke mobile plant permit for land spreading using EWC 19 13 06. T requirements will be structured across three lots: • Lot 1 - Reed Bed Management Excavation, transplant existing reeds, procure and plant new reeds - £1.75m per annum - £7m per framework • Lot 2 - Reed Bed Disposal: - Transportation and sustainable disposal avoiding landfill - £1.75m per annum - £7m per framework • Lot 3 - Sludge & Ochre Management - Lagoon desludging, excavation, transportation, ochre preparation, packing and haulage - £1m per annum - £4m per framework All dates and values are subject to change and not guaranteed.

CPV Codes

• 45232151 - Water-main refurbishment construction work

Indicators

• Contract is suitable for SMEs.

Other Information

Please express your interest in attending by contacting Sarah Kendrick Procurement Business Partner: sarahkendrick@coal.gov.uk The Coal Authority is seeking individual engagement sessions with interested parties to better understand market conditions, identifying and reducing potential barriers and for development of the procurement strategy. Further contact will be made from your initial expression of interest to arrange engagement sessions. Following the expression of interest, a supplementary document will be sent to interested parties to introduce further details in relation to this requirement. We anticipate the sessions will be held virtually over a duration of 2 days on the 26th of June 2024 - 27th of June 2024, however this may be subject to change. Any costs incurred in this exercise will be borne by the participating organisations. It is intended that the Contract Notice for this Framework will be issued prior to the implementation of the Procurement Act 2023 and will therefore be subject to the terms of PCR2015 for the duration of the contract. … This document contains details on the proposed lotting structure of the framework in addition to providing interested parties information in relation to the anticipated procurement strategy for this opportunity Early Market Engagement June 24 Waste Framework - Copy.pdf