Definition Sensitivity


Hydrogeology (Groundwater)


Groundwater flow contributes to an internationally designated site.


Site within close proximity to a Private Water Supply abstraction (in an area where there are no other sources of potable water).


Site within 50 m of a major industrial abstraction.


Medium


Secondary ‘A’ or undifferentiated Aquifer


Groundwater flow contributes to a nationally designated site.


Site within a SPZ 2.


Close proximity to a Private Water Supply abstraction (but one where there is an alternative potable source)


Low Secondary ‘B’ Aquifer


Limited groundwater – surface water interaction.


No nearby licensed or un- licensed water abstractions.


Hydrology (Surface Water)


with an internationally designated site, such as an SAC, SPA, Ramsar Site.


Site located within an area defined as a Flood Zone 3 by the Environment Agency (i.e. there is 0.5% chance of flooding from the sea or 1% chance of flooding from a river).


Water body classed as good (ecological quality) under the WFD.


Site is within hydraulic continuity with a nationally designated site, such as a SSSI.


Site located within an area defined as a Flood Zone 2 by the Environment Agency (i.e. there is 0.1% chance of flooding from a river).


Water body classed as moderate (ecological quality) under the WFD.


Site is within hydraulic continuity with a locally designated site, such as a Local Nature Reserve.


Site is located within a Flood Zone 1 by the Environment Agency (i.e. there is a < 0.1% chance of flooding from a river).


Negligible Unproductive Strata


No groundwater – surface water interaction.


No nearby licensed or un- licensed water abstractions.


21.4.3.2 Magnitude 36.


Water body classed as less than moderate (ecological quality) under the WFD.


Site is not within hydraulic continuity a sensitive receptor.


Site within a Flood Zone 1 (i.e. there is a < 0.1% chance of flooding from a river).


The impact magnitude is assessed by considering the potential consequences (severity) of the impact occurring as detailed in Table 21.7.


Preliminary Environmental Information May 2014


East Anglia THREE Offshore Windfarm


Chapter 21 Water Resource and Flood Risk Page 18


Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44  |  Page 45  |  Page 46  |  Page 47  |  Page 48  |  Page 49  |  Page 50  |  Page 51  |  Page 52  |  Page 53  |  Page 54  |  Page 55  |  Page 56  |  Page 57  |  Page 58