Local Environment Agency Plan
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Appendix L: SSSI Assessment (Site of Special Scientific Interest Source Pathway Receptor Analysis for Drought Permit Options)
Our Dry Weather Plan South East Water’s 2021 draft drought plan Appendix L: SSSI Assessment (site of special scientific interest source pathway receptor analysis for drought permit options) March 2021 South East Water Rocfort Road Snodland Kent ME6 5AH Drought Plan | March 2021 Contents 1.1 Groundwater drought permits - site of special scientific interest source pathway receptor analysis 3 1.1.1 Halling No. 8 - site of special scientific interest source pathway receptor analysis 3 1.1.2 Balcombe- site of special scientific interest source pathway receptor analysis 5 1.1.3 Tangier / Chasewood - site of special scientific interest source pathway receptor analysis 6 1.1.4 Southlands / Oaklands - site of special scientific interest source pathway receptor analysis 8 1.1.5 Hackenden - site of special scientific interest source pathway receptor analysis 10 1.2 Surface water - Site of special scientific interest source pathway receptor analysis 11 1.2.1 RIVER OUSE Drought Plan - SSSI Source Pathway Receptor Analysis 2020 11 1.2.2 RIVER CUCKMERE - site of special scientific interest source pathway receptor analysis 14 Annex – Assessment of the hydrological links between the River Cuckmere and the West Dean Brooks. 19 2 Drought Plan | March 2021 1.1 Groundwater drought permits - site of special scientific interest source pathway receptor analysis In support of the assessment of potential effects associated with the drought permit it has been assumed that: • All appropriate infrastructure is in place at the source • Pump testing will have been undertaken and used to confirm the extent of any surface water drawdown and inform the need to re- scope this assessment with respect to potential groundwater effects • Abstracted water meets all quality criteria associated with both Environment Agency consenting requirements and requirements for potable supply • All abstracted water is transferred to supply via existing pipe works 1.1.1 Halling No. -
G Sites of Special Scientific Interest Screening Assessment
WRMP19 SEA Environmental Report G Sites of Special Scientific Interest screening assessment SSSIs considered Water dependent sites Sites within 2 km of option located downstream of Option types that require new Option name Sites within 200 m of new reservoir abstraction or Screening narrative Screening decision reference built infrastructure (i.e., pipeline or repair/amendments discharge points, or groundwater, reservoir to existing pipelines supported by target aquifer and water treatment works for groundwater options) abstractions Catchment management CGW-2 Catchment Management N/A None N/A No adverse impacts from water quality improvement No significant impacts likely. Interventions at actions Woodgarston CGW-3 Targeted catchment N/A Pembury Cutting and Pit [all N/A No adverse impacts from water quality improvement No significant impacts likely. management units at favourable condition] actions interventions in the Pembury area Water reuse EFF-35 Effluent reuse to River Brighton to Newhaven Cliffs Brighton to Newhaven Cliffs Brighton to Newhaven Cliffs Proposed pipeline route runs adjacent to Lewes Brooks Measures to avoid significant effects on Lewes (plan Ouse: source – [100% of units at favourable or [100% of units at favourable [100% of units at favourable (no intersection with site) and in close proximity to Brooks and Brighton to Newhaven Cliffs SSSIs alternative Peacehaven (25Ml/d unfavourable – recovering or unfavourable – recovering or unfavourable – recovering Lewes Downs (minimum distance of approximately identified though SEA and recorded in option option) Option) condition] condition] condition] 200m), however no direct impacts and no drainage dossiers. For Lewes Downs this would include impacts anticipated. No significant effects likely either rerouting pipeline east of existing route via Lewes Brooks [93.6% of units at Lewes Brooks [93.6% of following implementation of standard mitigation. -
Environmental Baseline Data
Our Dry Weather Plan South East Water’s 2021 draft drought plan Appendix I: Environmental Baseline Data March 2021 South East Water Rocfort Road Snodland Kent ME6 5AH Drought Plan | March 2021 Contents This appendix contains the environmental baseline reports for the two river drought permit sites – the Rivers Ouse and Cuckmere, and also the Halling groundwater site. The detailed site surveys, location searches and search maps for these sites, and that form the baseline for the rest of the groundwater permit sites are contained within a separate folder of supporting documentation which is available on request from South East Water. 1. River Cuckmere Environmental Baseline 2020 2. Enhanced aquatic environmental baseline for the Grey Pit/Halling source 3. River Ouse Environmental Baseline 2020 2 River Cuckmere Drought Plan: Environmental Baseline Draft J00640/ Version 1.0 Client: South East Water January 2021 Copyright © 2021 Johns Associates Limited DOCUMENT CONTROL Report prepared for: South East Water Main contributors: Matt Johns BSc MSc CEnv MCIEEM FGS MIFM, Director Liz Johns BSc MSc CEnv MCIEEM MRSB, Director Jacob Scoble BSc GradCIWEM, Geospatial Analyst Reviewed by: Liz Johns BSc MSc CEnv MCIEEM MRSB, Director Issued by: Matt Johns BSc MSc CEnv MCIEEM FGS MIFM, Director Suites 1 & 2, The Old Brewery, Newtown, Bradford on Avon, Wiltshire, BA15 1NF T: 01225 723652 | E: [email protected] | W: www.johnsassociates.co.uk Copyright © 2021 Johns Associates Limited DOCUMENT REVISIONS Version Details Date 1.0 Draft baseline issued for client comment 25 January 2021 Third party disclaimer Any disclosure of this report to a third party is subject to this disclaimer. -