Page 270 - sercledoc

Strategic Part 1 - Sustainability Appraisal: Preferred Options: Annex A (June 2016)

Sub-national Purpose/ Main Aims and Objectives Relevance to the Local Plan/
Plans and bills to 1.8% p.a. below inflation. SA
Programmes

Draft Water This plan shows how Anglian Water are Informs the Part 1 and SA of
Resources going to maintain the balance between relevant issues in the Strategic
Management supply and demand over the next 25 years, Area
Plan 2015- as well as deal with the longer term
2040, challenge of population increase, climate
Anglian Water, change and growing environmental needs.
2014 Over the next 25 years, Anglian Water’s
supply- demand balance is at risk from
growth, climate change and the reductions in
deployable output that they will make to
restore abstraction to sustainable levels. In
the worst case, the impact could approach
567 Ml/d, equivalent to approximately 50% of
the water we put into supply in 2012/13. We
also have to manage risks from drought,
deteriorating raw water quality and the
impact of cold, dry weather on our
distribution system and customer supply
pipes.

The plan forecasts that under dry year
annual average conditions and without
investment to maintain the supply-demand
balance, Colchester will be in deficit by
2039-40. Six feasible option to maintain
Colchester’s supply-demand balance have
been developed as follows:

SE1 is to treat effluent from Colchester
Water Recycling Centre to an extremely high
(near potable) standard and discharge to the
River Colne to supplement river flows and
permit increased abstraction. A new pipeline
and pumping station would be required to
convey the water to the water treatment
works, which would require additional
treatment capacity.

SE2 transfer of 12Ml/d of water from Ipswich
in the East Suffolk RZ to Colchester via a
new 22km long pipeline.

SE4 Amendment to Ardleigh agreement,
which is shared with Affinity Water.

SE6 utilise an existing licenced borehole in

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