Man Trunk UIDs & Eccles WwTW CEO Briefing 22 nd April 2013 - - PowerPoint PPT Presentation

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man trunk uids eccles wwtw ceo briefing 22 nd april 2013
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Man Trunk UIDs & Eccles WwTW CEO Briefing 22 nd April 2013 - - PowerPoint PPT Presentation

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Man Trunk UIDs & Eccles WwTW CEO Briefing 22 nd April 2013 Background and Purpose The briefing provided at UU CIC on 5 th April 13 (Darren Hill/David Baines) updated the committee on the land access and ownership issues in relation to

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Man Trunk UIDs & Eccles WwTW CEO Briefing 22nd April 2013

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The briefing provided at UU CIC on 5th April 13 (Darren Hill/David Baines) updated the committee on the land access and ownership issues in relation to delivery of the UID schemes on and associated with Eccles WwTW (and the associated hydraulic flooding scheme). Specifically the briefing centred on:

  • the need to enter into Compulsory Purchase proceedings for the right to discharge into the Manchester Ship Canal
  • the revised legal advice on tactics provided shortly prior to the briefing that recommended expansion of the scope
  • f CPO
  • the effect the CPO process would have on our ability to meet the regulatory commitment date

A number of actions were agreed, including an offline briefing for the CEO to consider:

  • Our options to avoid the need for a new discharge into the Manchester Ship Canal and
  • Our options to close Eccles WwTW

This briefing pack intends to address both of these actions.

Background and Purpose

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  • Introduction and purpose of the briefing
  • Actions arising from UU CIC 5th April 13
  • Recap of current arrangement at Eccles and investment needs
  • Recap regulatory commitments
  • Review and discussion of options to meet needs
  • Summary of position in relation to disposal of any potential residual land at Eccles WwTW
  • Summary
  • Actions, next steps and feedback

Agenda

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SLIDE 4
  • 1. Project team to provide Steve Mogford with a further briefing to present alternative
  • ptions to preferred option
  • 2. Steve Mogford to arrange meeting with Steve Moore from EA
  • 3. Continue with the process for Compulsory Purchase

(on-going process: open letter to be sent to Peel Holdings w/c 22nd April)

NB: Since the 5th April UU CIC meeting, Russell Gettell (EA) has been notified in the form of verbal discussion and a short briefing note of the significant issues associated with delivery of the outputs associated with this project in advance of any meeting between UU and EA Senior Leadership

5th April UU CIC actions

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SLIDE 5

Current Arrangements & Needs

Peel Land Ownership A57 Liverpool Road UU Land Ownership

Manchester Ship Canal Eccles WwTW

M60 J11 Roundabout

Davyhulme WwTW Peel Green Road

Salteye Brook Existing Eccles WwTW outfall

Barton Locks

SAL 0018 UID

Located underneath M60 Discharges unscreened flows to Salteye Brook.

Peel Green Rd

25 no. DG5 properties close to Eccles WwTW

Eccles WwTW Inlet UID and Storm Tanks

Storm overflow at work inlet (screen solution) and Storm Tank imps

Eccles WwTW WFD

Tightening of NH4 standard for Salteye Brook

M60 / Barton Bridge

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SLIDE 6

Regulatory Commitments

UID Reference Name/Title Regulatory Commitment (EA) Forecast Delivery Date

SAL0018 Winton Outfall 28 Feb 2015 27 Feb 2015 016940144ST Eccles WwTW Storm Tanks 28 Feb 2015 27 Feb 2015 016940144SO Eccles WwTW Inlet Overflow 28 Feb 2015 27 Feb 2015 016940144 Eccles WwTW Final Effluent 28 Feb 2015 27 Feb 2015 DG5 Peel Green Rd DG5 31 Mar 2015 27 Feb 2015

There are 4 EA commitments associated with the works and one hydraulic flooding scheme that we are able to deliver as a ‘catchment solution’ as a result of the changes we make at the WwTW

Note: the forecast delivery dates shown in table above refer to current preferred option and assumes no delay in managing Peel Holdings

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  • 1. New gravity outfall into Manchester Ship Canal (MSC)
  • 2. New pumped outfall into MSC
  • 3. Retention of existing outfall into Salteye Brook
  • 4. Transfer Eccles WwTW Flow To Works (FTW) to Davyhulme WwTW and retain use of

existing discharge point into Salteye Brook for SAL 0018 and Inlet Overflow (includes the ‘closure’ of Eccles WwTW)

  • 5. Transfer Inlet Overflow and Flow To Works (FTW) to Davyhulme WwTW and retain use of

existing discharge point into Salteye Brook for SAL 0018 (includes the ‘closure’ of Eccles WwTW)

  • 6. Maintain the discharge into Salteye Brook but move outfall to the confluence of MSC

Options Considered

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  • 1. New gravity outfall into MSC downstream of Barton Locks

Capex LBE: £35.5m Scope and Solution:

  • SAL 0018: intercept existing sewer overflow , construct new CSO and screen

– Construct two shafts and tunnel beneath M60 J11 (95m 2.1m id) – Tunnel into Eccles WwTW into new shaft (505m 2.87m id)

  • Eccles WwTW Inlet overflow: install two powered screens on existing overflow weirs
  • Eccles WwTW Inlet overflow, Storm Tanks and Final Effluent: convey all flows into new

shaft and tunnel (1300m 2.87m id) beneath Barton Bridge across Peel land to new outfall into MSC

  • Peel Green Rd DG5: isolate 25 properties from existing sewer and form new connections

into new pumping station/rising main. Sewer upsizing in Peel Green Rd

  • 1. New gravity outfall into Manchester

Ship Canal (MSC) [current preferred]

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  • 1. New gravity outfall into Manchester

Ship Canal [current preferred]

Peel Land Ownership A57 Liverpool Road UU Land Ownership

Manchester Ship Canal Eccles WwTW

M60 J11 Roundabout

Davyhulme WwTW Peel Green Road

Salteye Brook Divert existing outfall to facilitate Peel development

Barton Locks

SAL 0018 UID

Tunnel under motorway to convey flows to Eccles WwTW.

Peel Green Rd

Disconnect from existing sewer and install new Pump Station and rising main

Eccles WwTW Inlet UID and Storm Tanks

New storm screens and

  • verflow into new outfall

Eccles WwTW WFD

Transfer of discharge to MSC removes need for new Permit (dilution effect)

M60 / Barton Bridge

New gravity outfall into MSC

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  • 2. New pumped outfall into MSC adjacent to Eccles WwTW

Capex LBE: £38.0m Scope and Solution:

  • SAL 0018: intercept existing sewer overflow , construct new CSO and screen

– Construct two shafts and tunnel beneath M60 J11 (95m 2.1m id) – Tunnel into Eccles WwTW into new shaft (505m 2.87m id)

  • Eccles WwTW Inlet overflow: install two powered screens on existing overflow weirs
  • Eccles WwTW Inlet overflow, Storm Tanks and Final Effluent: convey all flows into new

pumping station to pump all flows into new outfall into MSC

  • Peel Green Rd DG5: isolate 25 properties from existing sewer and form new connections

into new pumping station/rising main. Sewer upsizing in Peel Green Rd

  • 2. New pumped outfall into MSC
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  • 2. New pumped outfall into MSC

Peel Land Ownership A57 Liverpool Road UU Land Ownership

Manchester Ship Canal Eccles WwTW

M60 J11 Roundabout

Davyhulme WwTW Peel Green Road

Salteye Brook Divert existing outfall to facilitate Peel development and retain long term as Pump Station Emergency Overflow

Barton Locks

SAL 0018 UID

Tunnel under motorway to convey flows to Eccles WwTW.

Peel Green Rd

Disconnect from existing sewer and install new Pump Station and rising main

Eccles WwTW Inlet UID and Storm Tanks

New storm screens and

  • verflow into new outfall

Eccles WwTW WFD

Transfer of discharge to MSC removes need for new Permit (dilution effect)

M60 / Barton Bridge

Pump Station New pumped

  • utfall into MSC
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  • 3. Preserve Discharge into Salteye Brook, no new outfall into MSC, meaning we treat at

Eccles to the tighter Ammonia standard (i.e. BAFF Plant and storage at Eccles WwTW) Capex LBE: £79.5m Scope and Solution:

  • SAL 0018: intercept existing sewer overflow , construct new CSO and screen

– Construct two shafts and tunnel beneath M60 J11 (95m 2.1m id) – Tunnel into Eccles WwTW (505m 2.87m id)

  • Eccles WwTW Inlet Overflow: New CSO chamber complete with Escalator Screens
  • Eccles WwTW Storm Tanks: Construct additional storage volume 32,800 m3
  • Eccles WwTW Final Effluent: New BAFF plant
  • Peel Green Rd DG5 – construct 11,000 m3 storage

Note: The permit limit for Eccles is likely to tighten even further if we remain in Salteye Brook due to non compliance with WFD. In future AMP periods we are likely to get a BOD limit of 7/8mg/l, an ammonia limit of 1mg/l and a tight P limit

  • 3. Retention of existing outfall into

Salteye Brook

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SLIDE 13

Peel Land Ownership A57 Liverpool Road UU Land Ownership

Manchester Ship Canal Eccles WwTW

M60 J11 Roundabout

Davyhulme WwTW Peel Green Road

Salteye Brook Existing Eccles WwTW outfall

Barton Locks

SAL 0018 UID

Tunnel under motorway to convey flows to Eccles WwTW.

Peel Green Rd

Disconnect from existing sewer and install new Pump Station and rising main

Eccles WwTW Inlet UID and Storm Tanks

New storm screens and additional storage

Eccles WwTW WFD

New BAFF plant to meet new NH4 standard

  • 3. Retention of existing outfall into

Salteye Brook

M60 / Barton Bridge

New BAFF Plant New Storm Storage

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  • 4. Closure and transfer of substantial part of existing Eccles WwTW to Davyhulme WwTW

(sub-option 1) Capex LBE: £176.7m Scope and Solution:

  • SAL 0018: intercept existing sewer overflow , construct new CSO and screen

– Construct two shafts and tunnel beneath M60 J11 (95m 2.1m id) – Tunnel into Eccles WwTW (505m 2.87m id)

  • Eccles WwTW Inlet Overflow: New CSO chamber complete with Escalator Screens
  • Eccles WwTW Storm Tanks: Construct additional storage volume 32,800 m3
  • Eccles WwTW Storm Tanks and Final Effluent:

– Transfer of FTW to new treatment facility including storm tanks sited within UU land adjacent to Davyhulme WwTW – Flow to Full Treatment (FtFT) is 1,035 l/s. New shaft at Eccles WwTW and tunnel beneath MSC – New pumping station at new treatment facility to lift FTW flows (2,138 l/s) from tunnel for treatment at ground level

  • New outfall into MSC on south bank, downstream of Barton Locks
  • Peel Green Rd DG5: 11,000 m3 storage
  • 4. Transfer Eccles WwTW FTW to

Davyhulme

(retaining use of existing discharge into Salteye Brook and ‘closing’ Eccles WwTW )

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Peel Land Ownership A57 Liverpool Road Some UU land retained

M60 J11 Roundabout

Peel Green Road Davyhulme WwTW

Salteye Brook Existing Eccles WwTW outfall retained for storm overflow, could be diverted as per 1 & 2

SAL 0018 UID

Tunnel under motorway to convey flows to Eccles WwTW.

Peel Green Rd

Storage required to attenuate flows

Eccles WwTW Inlet UID and Storm Tanks

New storm screens and additional storage

Eccles WwTW WFD

Flows transferred to

  • ther side of canal
  • 4. Transfer Eccles WwTW FTW to

Davyhulme

(retaining use of existing discharge into Salteye Brook and ‘closing’ Eccles WwTW )

New Storm Storage

Manchester Ship Canal

M60 / Barton Bridge

Barton Locks

New PS and treatment facility

Land for potential disposal Land for potential disposal

New discharge into the canal Storage

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  • 5. Closure and transfer of substantial part of existing Eccles WwTW to Davyhulme WwTW

(sub-option ii) Capex LBE: £137.9m Scope and Solution:

  • SAL 0018: intercept existing sewer overflow , construct new CSO and screen

– Construct two shafts and tunnel beneath M60 J11 (95m 2.1m id) – Tunnel into Eccles WwTW (505m 2.87m id) – Connect into existing outfall into Salteye Brook

  • Eccles WwTW Inlet Overflow, Storm Tanks and Final Effluent:

– Transfer of all flows arriving at Eccles Inlet CSO via new shaft at Eccles WwTW and tunnel beneath MSC to new treatment facility including storm tanks sited within UU land adjacent to Davyhulme WwTW New pumping station at new treatment facility to lift all Eccles flows (max 11.0m3/s) from tunnel for treatment at ground level.

  • New outfall into MSC on south bank, downstream of Barton Locks
  • Peel Green Rd DG5: isolate 25 properties from existing sewer and form new connections

into new pumping station/rising main. Sewer upsizing in Peel Green Rd.

  • 5. Transfer Eccles WwTW Overflow &

FTW to Davyhulme

(retaining use of existing discharge into Salteye Brook and ‘closing’ Eccles WwTW )

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Peel Land Ownership A57 Liverpool Road Some UU land retained

M60 J11 Roundabout

Peel Green Road Davyhulme WwTW

Salteye Brook

SAL 0018 UID

Tunnel under motorway to convey flows to Eccles WwTW.

Peel Green Rd

Disconnect from existing sewer and install new Pump Station and rising main

Eccles WwTW Inlet UID and Storm Tanks

All flows transferred

Eccles WwTW WFD

Flows transferred to

  • ther side of canal
  • 5. Transfer Eccles WwTW Overflow &

FTW to Davyhulme

(retaining use of existing discharge into Salteye Brook and ‘closing’ Eccles WwTW ) Manchester Ship Canal

M60 / Barton Bridge

Barton Locks

New PS and treatment facility

Land for potential disposal Land for potential disposal

New discharge into the canal Existing Eccles WwTW outfall retained for storm overflow, could be diverted as per 1 & 2

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  • 6. Transfer discharges from SAL 0018 & Eccles WwTW to the Confluence of Salteye Brook

and the MSC Capex LBE: £74.6m Scope and Solution:

  • SAL 0018: intercept existing sewer overflow , construct new CSO and screen

– Construct two shafts and tunnel beneath M60 J11 (95m 2.1m id) – Tunnel into Eccles WwTW (505m 2.87m id)

  • Eccles WwTW Inlet Overflow: New CSO chamber complete with Escalator Screens
  • Eccles WwTW Storm Tanks and Final Effluent: extend existing outfall pipe by new

2400mm pipework to discharge at a point via new outfall near to the confluence of Salteye Brook/MSC

  • Peel Green Rd DG5: construct 11,000 m3 storage
  • 6. Maintain the discharge into Salteye

Brook but move outfall to the confluence of MSC

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  • 6. Maintain the discharge into Salteye

Brook but move outfall to the confluence of MSC

Peel Land Ownership A57 Liverpool Road UU Land Ownership

Manchester Ship Canal Eccles WwTW

M60 J11 Roundabout

Davyhulme WwTW Peel Green Road

Salteye Brook Divert existing outfall to facilitate Peel development

Barton Locks

SAL 0018 UID

Tunnel under motorway to convey flows to Eccles WwTW.

Peel Green Rd

Storage required to attenuate flows

Eccles WwTW Inlet UID and Storm Tanks

New storm screens and

  • verflow into new outfall

Eccles WwTW WFD

Transfer of discharge to nearer MSC removes need for new Permit (dilution effect)

M60 / Barton Bridge

New gravity outfall into MSC Storage

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SLIDE 20
  • 53 acres
  • Located close to M60 and Peel’s planned Port of

Salford with direct access to WGIS Road scheme

  • High value site with mixed use potential eg.

leisure, retail, employment

  • Likely to be one of the best development sites in

the North West

  • Hard to value but property team believe £2m per

acre is not unreasonable.

  • Total value once remediated circa £100m
  • Remedial costs estimated at £30-40m
  • Net value estimate £60-70m
  • We will need easements where there are key

structures and pipelines which may devalue the land

  • RCC2 requires UU to return half the sale value to

customers

Eccles WwTW Land Value

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Summary

Option No. Class A Capital Cost LBE (+/- 30%) New/Existing Discharge Transfer to Davyhulme Likelihood of delivery to Regulatory Date 1 £35.5m New outfall into MSC Peel Interaction No P90 2 £38.0m New outfall into MSC Peel Interaction No P60 3 £79.5m Existing outfall remains intact No P20 4 £176.7m New outfall at Davyhulme into MSC Peel Interaction Yes P20 5 £137.9m New outfall at Davyhulme into MSC Peel Interaction Yes P20 6 £74.6m New outfall into Salteye Brook Peel Interaction No P20

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Actions, Next Steps & Feedback