Water Protected Areas (DrWPAs) are water bodies (e.g. rivers, reservoirs, canals for Surface Water or aquifers ) where ‘raw’ water is abstracted for human consumption at a rate of at least 10m3/day or over 50 people are served. Further assessment of water quality and resources will be undertaken as part of the Water Framework Directive compliance assessment for the final ES.
21.5.1.4 Groundwater Abstractions 59.
The Environment Agency has defined Source Protection Zones (SPZs) for groundwater sources which are used for public drinking water. There are three SPZ Zone 1 areas crossed by the onshore electrical transmission works at:
Playford (circa Grid Ref 6210,2480); Akenham (circa Grid Ref 6150,2490); and North of Bramford (circa Grid Ref 6211, 2475).
60.
The remainder of the onshore electrical transmission works to the west of Great Bealings lies within an Outer zone (Zone 2). There are no SPZs to the east of Woodbridge.
61.
These zones are identified to protect active water abstraction points from the impact of contaminative sources. Zone 1 represents a 50 day travel time to the abstraction and Zone 2 is defined by a 400 day travel time.
62. A summary of the licenced active private water supply abstractions within 500m of the onshore electrical transmission works as provided by the Environment Agency is shown in Table 21.10 below and in Figure 21.3. No rates of flow were provided for any of the locations listed below.
Preliminary Environmental Information May 2014
East Anglia THREE Offshore Windfarm
Chapter 21 Water Resource and Flood Risk Page 24
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