Project record

Canvey Lake dredging and off-site sediment disposal

Participation
Requires review
Participation checked

UK4 tender; fixed £1m excluding VAT; FTS deadline 2 November 2026, 12:00 UTC

Participation source

Castle Point Borough Council seeks an experienced contractor to dredge Canvey Lake in Essex. EPP0391 sets a £1 million budget excluding VAT and scores technical quality at 95% and social value at 5%. Current owner plans connect dredging to temporary lagoons, dewatering, off-site disposal and reinstatement.

Canvey Lake material handling, owner-proposed route: dredging, temporary lagoons and dewatering, vacuum tankers, and off-site disposal, with AGA facility acceptance requirements alongside the route

IMWO original material-handling diagram based on Castle Point programme and AGA waste assessment

Location

United Kingdom / Europe

Segment

Dredging

Phase

Tender / Confirmed

Last checked

28 October 2026

Coverage

Related sectors

Dredging is the primary work classification. Related sectors connect this record to adjacent marine delivery and market coverage.

Subject index

Related subjects

These subject pages bring together related projects, technical articles, reports, and evidence methods.

Project anatomy

Contract scope and delivery roles

Client / authority
Castle Point Borough Council
Delivery parties
Contractor selection under EPP0391
Contract route
Castle Point uses a below-threshold open competition. UK4 notice 093052-2026, amended 1 October, sets 2 November 2026 at 12:00 UTC as the submission deadline. Technical quality 95%; social value 5%; three independent technical scorers followed by consensus. The current pack is on Open behind supplier login. The 1 October amendment moved the updated specification into that pack. The official mirror has a summary/body deadline discrepancy, leaving participation under review.
Execution window
FTS contract period: 4 January-4 October 2027, extendable to 4 January 2028 if needed to complete the works. The council expects dredging in January-March 2027, subject to Flood Risk Activity Permit approval, followed by April ground reinstatement.
Works package
Lake dredging within a fixed £1 million ex-VAT budget (£1.2 million including VAT). The owner proposes temporary on-site lagoons, dewatering and vacuum-tanker removal for off-site disposal. Its approximately 42,000 m³ survey estimate is whole-lake silt inventory; the current specification determines the selected removal extent. Water testing and aquatic planting have a separate £144,000 budget over three years and seven months.
Marine interfaces
This inland hydraulic work serves a lake created for flood management and fed by rainwater and surface runoff. Lagoon footprint, site access and temporary public-path closures connect sediment removal to the surrounding ground and drainage system. The council identifies dredging permit approval as a programme condition.
Commercial evidence boundary
AGA classifies the represented sediment as non-hazardous under code 17 05 06, while its tests fail the inert-landfill acceptance criteria for organic carbon, chloride and dissolved solids. Its recommended route requires a suitably permitted non-hazardous receiver and facility-specific acceptance. The fixed budget must accommodate material handling, wet loads and the agreed disposal route alongside excavation; the public notice gives no unit dredging rate.

Contract and delivery chain

Work packages and named roles

Published scope, named parties and supporting evidence for each workstream.

Procurement

EPP0391 fixed-budget dredging

Named party
Castle Point Borough Council
Evidence status
Confirmed
Source position
The amended UK4 record sets £1 million excluding VAT, technical quality 95%, social value 5% and a 2 November 2026 at 12:00 UTC submission deadline. Source
Material characterisation

Represented dredging spoil and facility acceptance

Named party
A.G.A. Group Consultancy Ltd
Evidence status
Confirmed
Source position
August WM3 classification assigns code 17 05 06 to represented sediment. July testing fails inert-landfill acceptance; the receiving non-hazardous facility must apply its own procedures. Source
Proposed delivery

Lagoons, vacuum-tanker removal and reinstatement

Named party
Castle Point Borough Council; delivery contractor to be selected
Evidence status
Confirmed
Source position
The current owner FAQ proposes temporary lagoons and dewatering before vacuum-tanker removal. It expects January-March dredging subject to FRAP and April reinstatement. Source

Evidence gap

What remains unverified

Outstanding evidence

  • Current Open tender pack, latest clarifications and confirmation of the submission deadline
  • Flood Risk Activity Permit, temporary path closures and agreed contractor programme
  • Receiving-facility pre-acceptance, treated material condition, haul capacity and accepted dredging extent

Related records 1

Reporting status

Project phase
Tender
Evidence confidence
Confirmed
Last checked
28 October 2026
Cited sources
9

Sources and related records

Project changes Methodology Email a correction Project tracker
Source collections

Project sources 9