F. Geology & Hydrology ( PDF | 31.0 MB ) - RWE.com

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BGS superfiical Phase 1 Turbine NSRI Soil deposits and Habitat Forestry Plant Field Survey Peat Number Association underlying bedrock Topography Survey crop year Completed present Results 22 Hafren No superficial Slopes S, nearest Coniferous Sitka 1994 Yes. Access restricted No Turbine centre not accessible due to forestry. deposits. Denbigh grits watercourse 200m plantation/ spruce due to dense forestry Measurements to south of survey area show no mudstone, siltstone S heathland in centre and N of peat. See Figure 3.17 in Appendix 3. and sandstone turbine. 23 Hafren No superficial Slopes NE, nearest Coniferous Sitka 1992 No - not accessible Desk study BGS/NSRI map data suggest no peat deposits. Denbigh grits watercourse 375m plantation spruce suggests mudstone, siltstone and sandstone N no peat 24 Wilcocks 2 Glacial till over Slopes steeply Coniferous Sitka 1993 No - not accessible Desk study BGS/NSRI map data and steep topography Denbigh grits NW, nearest plantation spruce suggests suggest no peat mudstone, siltstone watercourse 150m no peat and sandstone. Peat deposit 105m NW of turbine centre. N 25 Wilcocks 2 No superficial Flat, nearest Heathland Open n/a Yes No BGS/NSRI map data and peat depth survey deposits. Denbigh grits watercourse 600m heathland confirm no peat within 50m of turbine. See mudstone, siltstone and sandstone N Figure 3.18 in Appendix 3. 26 Wilcocks 2 No superficial Slopes N steeply, Heathland Open n/a Yes No BGS/NSRI map data and peat depth survey deposits. Denbigh grits nearest heathland confirm no peat within 50m of turbine. See mudstone, siltstone watercourse280m Figure 3.19 in Appendix 3. and sandstone N 27 Wilcocks 2 Glacial till over Flat, nearest Coniferous Sitka 1996 No - not accessible Desk study BGS/NSRI map data suggest no peat Denbigh grits watercourse 430m plantation spruce/ suggests mudstone, siltstone SE Norway no peat and sandstone. spruce 28 Hafren Glacial till over Slopes NW, Coniferous Sitka 1998 No - not accessible Desk study BGS/NSRI map data suggest no peat Denbigh grits nearest plantation spruce suggests mudstone, siltstone watercourse 500m no peat and sandstone. S 29 Hafren Glacial till over Slopes gently SW, Coniferous Sitka 1996 No - not accessible Desk study BGS/NSRI map data suggest no peat Denbigh grits nearest plantation spruce suggests mudstone, siltstone watercourse 340m no peat and sandstone. SW 30 Brickfield 1 Glacial till over Denbigh grits mudstone, siltstone and sandstone. Slopes steeply SW, nearest watercourse 150m W Coniferous plantation Sitka spruce 1992 No - not accessible Desk study suggests no peat BGS/NSRI map data suggest no peat
BGS superfiical deposits and underlying bedrock Topography Phase 1 Habitat Survey Coniferous plantation Turbine NSRI Soil Number Association 31 Hafren No superficial Slopes gently W, deposits. Denbigh grits nearest mudstone, siltstone watercourse 180m and sandstone W 32 Brickfield 1 Glacial till over Slopes steeply SE, Coniferous Denbigh grits nearest plantation mudstone, siltstone watercourse 230m and sandstone. SE Forestry crop Sitka spruce Plant Field Survey Peat year Completed present Results 1990 No - not accessible Desk study suggests no peat BGS/NSRI map data suggest no peat SS/NS 1991 No - not accessible Desk study suggests no peat BGS/NSRI map data suggest no peat
Page 1 and 2: Annex F Geology and Hydrology • F
Page 3 and 4: F1 WATER RESOURCES AND FLOODING - L
Page 5 and 6: After the GQA has been conducted, a
Page 7 and 8: Protection Zones (SPZs) across Engl
Page 9 and 10: F1.13 CLWYD STRUCTURE PLAN SECOND A
Page 11 and 12: CONTENTS 1 INTRODUCTION 1 2 ASSESSM
Page 13 and 14: 2 ASSESSMENT METHODOLOGY 2.1 INTROD
Page 15 and 16: • Each peat probing location was
Page 17 and 18: 3 RESULTS 3.1 DESK STUDY RESULTS 3.
Page 19 and 20: lower horizon. From these soil seri
Page 21 and 22: Figure 3.3 Wilcocks 2 Comprising So
Page 23 and 24: y their peat-forming vegetation). I
Page 25 and 26: Table 3.2 Peat survey results at pr
Page 27: BGS superfiical Phase 1 Turbine NSR
Page 31 and 32: Table 3.3 Existing and new access t
Page 33 and 34: 3.2.4 Peat Loss Calculations Direct
Page 35 and 36: Infrastructure component Access tra
Page 37 and 38: 4 RECOMMENDED MITIGATION MEASURES 4
Page 39 and 40: Appendix 1 CCW Consultation
Page 41 and 42: CCW are of the view that the impact
Page 43 and 44: Undertaking'. Within this document
Page 45 and 46: Section 42 and LBAP Species/Habitat
Page 47 and 48: We recommend the inclusion of detai
Page 49 and 50: APPENDIX 1: EUROPEAN PROTECTED SPEC
Page 51 and 52: CADEIRYDD/CHAIRMAN: JOHN LLOYD JONE
Page 53 and 54: Peat depth Peat depth is some refec
Page 55 and 56: Annexe 1: 1.1 Overview (limited ext
Page 57 and 58: Yours sincerely Name Title Enc cc.
Page 59 and 60: It would be useful to define what i
Page 61 and 62: • If peat is identified through d
Page 63 and 64: 1 PHOTOLOG OF SURVEY LOCATIONS Figu
Page 65 and 66: Figure 1.5 Turbine 4 Figure 1.6 Tra
Page 67 and 68: Figure 1.9 Track past Turbine 7 Fig
Page 69 and 70: Figure 1.13 Turbine 11 - Dense fore
Page 71 and 72: Figure 1.17 Turbine 13 Figure 1.18
Page 73 and 74: Figure 1.21 Turbine 19 Figure 1.22
Page 75 and 76: Figure 1.25 Track past Turbine 25 F
Page 77 and 78: Appendix 3 Detailed Results Figures
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KEY: 0.15m 0.08m 0.2m 0.28m 0.18m 0
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KEY: Development Area Turbine Sampl
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KEY: TURBINE 4 Development Area Tur
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KEY: Development Area Turbine Sampl
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KEY: TURBINE 22 Development Area Tu
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KEY: TURBINE 26 Development Area Tu
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KEY: 0.2 0.12 Development Area Turb
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National Soil Resources Institute S
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National Soil Resources Institute A
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National Soil Resources Institute W
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National Soil Resources Institute 1
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National Soil Resources Institute P
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National Soil Resources Institute a
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National Soil Resources Institute B
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Annex F4 Flood Consequences Assessm
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Flood Consequences Assessment - Clo
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Contents Executive Summary ........
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1 Introduction 1.1 Objectives Walli
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Runoff rates under 100-year storm t
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2 Description of the Site 2.1 Backg
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Steep channel with forest debris cl
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Figure 3 Location of proposed turbi
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2.4 Catchment Delineation An assess
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Outfall grid reference Total catchm
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Tests were attempted at two sites w
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The long term impacts on the surfac
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4 Flood Consequences Assessment 4.1
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4.3 Current Flood Risk In summary,
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Analyses are not presented for the
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WRAP fractional extents of 0.75 WRA
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5.3 Calculation of Existing Greenfi
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Afon Alwen No. 3 Afon Alwen No. 4 R
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1. Do nothing - on the grounds that
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5.6 Construction Appropriate method
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On the basis of a literature review
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Robinson, M. and Dupeyrat, A. 2005.
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Clocaenog Methodology and reasons f
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Clocaenog Methodology for mineral s
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Clocaenog Methodology for mineral s
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1.1 OVERVIEW CLOCEANOG WIND FARM BO
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Table1.1 Forest and Water Guideline
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Table 1.2 Borrow pit search areas S
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Table 1.3 Recommended borrow pit lo
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Name Easting Northing Search Area N
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360000 .000000 359000 .000000 35800
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