Preliminary Market Engagement - PIN - Winfrith Removal of Held-up water from Terrestrial section of the Sea Discharge Pipeline

The procurement is for the removal of held-up water contained within 9.5kms 3kms of the terrestrial section of Winfrith’s sea-discharge pipelines (SDP). The twin pipelines run approximately 1.50m below ground level through predominantly arable farmland. The pipelines are constructed from Schedule 40 API 5L carbon-steel and comprise two 6”- 8” diameter ‘active’ pipelines contained within two 12”- 18” diameter ‘low-active’ pipelines leading to a concrete shore valve-house structure at Arish Mell. It is anticipated that the removal of approximately 10500m3 of water will be required. In addition to the pipeline, the removal of held-up water contained within a large concrete break-pressure tank is also required. 6 off ‘wash-out’ pits and 6 off ‘air-valve’ pits are located along the length of the pipelines. The preferred disposal route for the held-up water has not currently been determined. Two options currently being considered are 1) tanker-transportation to an off-site disposal facility and 2) pumping down the Marine section of the SDP under the existing discharge consent. The procurement shall include the following: • Removal all held-up water from within the terrestrial section of the SDP • Disposal of all held-up water from within the terrestrial section of the SDP

Works

11/01/2023 12:00:00

45232150-8  Works related to water-distribution pipelines
98391000-0  Decommissioning services
45231111-6  Pipeline lifting and relaying
45231300-8  Construction work for water and sewage pipelines