Appendix-A-How-much-water-do-we-have-available

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Appendix-A-How-much-water-do-we-have-available

Appendix A - How much water do we have available?A1 Water Resource ZonesFollowing the 2009 Water Resources Management Plan, we informed Defra of our p

Appendix-A-How-much-water-do-we-have-availableplan to review the structure of our six water resources zones in time for the 2014 WRMP. The purpose of the review was to ensure that we comply with t

he EA definition of a water resource zone being the "largest possible zone in which customers share the same nsk of a resource shortfall".We completed Appendix-A-How-much-water-do-we-have-available

our review of resource zones in 2009-10 and shared the results and supporting evidence to Defra and the EA in June 2010. Our review took into conside

Appendix-A-How-much-water-do-we-have-available

ration the supply and distribution enhancements we are undertaking during AMP5 and resulted in 15 water resource zones, as illustrated in figure A1.1

Appendix A - How much water do we have available?A1 Water Resource ZonesFollowing the 2009 Water Resources Management Plan, we informed Defra of our p

Appendix-A-How-much-water-do-we-have-availablerce zone definition. Our 2011 and 2012 WRMP annual reviews have included a summary of the outturn water supply and demand position for each of these n

ew zones.Figure A1.1: Severn Trent Water’s new Water Resource ZonesDefining our Water Resource ZonesOur review of water resource zones used a combinat Appendix-A-How-much-water-do-we-have-available

ion of the best available company asset configuration records along with operational expert judgement. Following this review, we have also reconfigure

Appendix-A-How-much-water-do-we-have-available

d the water demand and supply models used for our water resources planning.Our approach to reviewing the structure of our existing water resource zone

Appendix A - How much water do we have available?A1 Water Resource ZonesFollowing the 2009 Water Resources Management Plan, we informed Defra of our p

Appendix-A-How-much-water-do-we-have-available- How much water do we have available?•We have reviewed our major strategic sources and assessed how the connectivity of our supply system allows them

to support our smaller sources of water.•For supply / demand investment planning, our scenario is an extended hot, dry season (eg summer / autumn 200 Appendix-A-How-much-water-do-we-have-available

3).•We have considered to what extent the conjunctive supply system can meet demand without the need for hosepipe bans I restrictions.•Where the distr

Appendix-A-How-much-water-do-we-have-available

ibution network constrains our ability to share water between sources to meet demand, this forms a "cleavage line" between zones.•Our assessment is ba

Appendix A - How much water do we have available?A1 Water Resource ZonesFollowing the 2009 Water Resources Management Plan, we informed Defra of our p

Appendix-A-How-much-water-do-we-have-availabley' demands as these are not relevant to the definition of a water resource zone. They are covered by our resilience and isolated communities investmen

t plans and our local distribution investment plans.The key steps in our approach to reviewing our Water Resource Zones are summarised in Figure A1.2 Appendix-A-How-much-water-do-we-have-available

below.2 Severn Trent Water: Final Water Resources Management Plan 2014Appendix A - How much water do we have available?Figure A1.2: The process of def

Appendix-A-How-much-water-do-we-have-available

ining Water Resource Zones1. Define Principal CharacteristicsOutline and agree the definition of a WRZDevelop a WRZ checklist based on the foiM key co

Appendix A - How much water do we have available?A1 Water Resource ZonesFollowing the 2009 Water Resources Management Plan, we informed Defra of our p

Appendix-A-How-much-water-do-we-have-availablee disữibutìon network (including AM P5 schemes) and significant water sources Preliminary boundaries based on :•Areas supplied by single sources•Exten

t of strategic grids Ỉ links«Infrastructure connectivity and constraints•AM P5 schemes are in place3. WorkshopsConsultation with VKtater Company Distn Appendix-A-How-much-water-do-we-have-available

bution arid Production staff to test the preliminary WRZ boundaries. WRZ delineation reviewbased on:•Howthe network would be operated in an extended h

Appendix-A-How-much-water-do-we-have-available

ot. dry season without the need for hosepipe bans or demand restnctions.

Appendix A - How much water do we have available?A1 Water Resource ZonesFollowing the 2009 Water Resources Management Plan, we informed Defra of our p