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URS Infrastructure & Environment UK Ltd Page 1 Scott House Whitecleave Quarry Alencon Link IBA Facility and Proc... Basingstoke RG21 7PP Greenfield Runoff Date 1/03/2013 Designed by MJC File Whitecleave Quar... Checked by Micro Drainage Source Control W.12.6 ICP SUDS Mean Annual Flood ©1982-2011 Micro Drainage Ltd Input Return Period (years) 100 Soil 0.400 Area (ha) 1.213 Urban 0.000 SAAR (mm) 1715 Region Number Region 8 Results l/s QBAR Rural 11.8 QBAR Urban 11.8 Q100 years 28.5 Q1 year 9.2 Q30 years 22.4 Q100 years 28.5
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Page 1: URS Infrastructure & Environment UK Ltd Page 1 Scott House ... · Storage isOnlineCover Level (m)60.000 Tank or Pond Structure Invert Level (m)58.000 Depth (m)Area (m² ... Half Drain

URS Infrastructure & Environment UK Ltd Page 1

Scott House Whitecleave Quarry

Alencon Link IBA Facility and Proc...

Basingstoke RG21 7PP Greenfield Runoff

Date 1/03/2013 Designed by MJC

File Whitecleave Quar... Checked by

Micro Drainage Source Control W.12.6

ICP SUDS Mean Annual Flood

©1982-2011 Micro Drainage Ltd

Input

Return Period (years) 100 Soil 0.400Area (ha) 1.213 Urban 0.000SAAR (mm) 1715 Region Number Region 8

Results l/s

QBAR Rural 11.8QBAR Urban 11.8

Q100 years 28.5

Q1 year 9.2Q30 years 22.4Q100 years 28.5

Page 2: URS Infrastructure & Environment UK Ltd Page 1 Scott House ... · Storage isOnlineCover Level (m)60.000 Tank or Pond Structure Invert Level (m)58.000 Depth (m)Area (m² ... Half Drain

URS Infrastructure & Environment UK Ltd Page 1

Scott House Whitecleave Quarry

Alencon Link IBA Facility and Proc...

Basingstoke RG21 7PP Surface Water Runoff ...

Date 01/03/2013 Designed by MJC

File 130301 100yr_IBA... Checked by

Micro Drainage Source Control W.12.6

Summary of Results for 100 year Return Period (+20%)

©1982-2011 Micro Drainage Ltd

Storm

Event

Max

Level

(m)

Max

Depth

(m)

Max

Control

(l/s)

Max

Volume

(m³)

Status

15 min Summer 58.766 0.766 22.8 325.6 O K30 min Summer 58.968 0.968 22.8 411.4 O K60 min Summer 59.196 1.196 22.8 508.4 O K120 min Summer 59.424 1.424 24.1 605.3 O K180 min Summer 59.534 1.534 24.9 651.7 O K240 min Summer 59.593 1.593 25.3 676.9 O K360 min Summer 59.664 1.664 25.8 707.2 O K480 min Summer 59.700 1.700 26.1 722.4 O K600 min Summer 59.715 1.715 26.2 729.0 O K720 min Summer 59.718 1.718 26.2 730.3 O K960 min Summer 59.628 1.628 25.6 691.7 O K1440 min Summer 59.450 1.450 24.2 616.3 O K2160 min Summer 59.205 1.205 22.8 512.2 O K2880 min Summer 58.979 0.979 22.8 416.1 O K4320 min Summer 58.591 0.591 22.8 251.1 O K5760 min Summer 58.373 0.373 22.7 158.4 O K7200 min Summer 58.287 0.287 21.3 122.1 O K8640 min Summer 58.247 0.247 19.2 105.0 O K10080 min Summer 58.221 0.221 17.4 93.8 O K

15 min Winter 58.863 0.863 22.8 367.0 O K30 min Winter 59.092 1.092 22.8 464.1 O K60 min Winter 59.353 1.353 23.5 574.8 O K120 min Winter 59.621 1.621 25.5 689.0 O K

Storm

Event

Rain

(mm/hr)

Time-Peak

(mins)

15 min Summer 152.846 2530 min Summer 98.042 3960 min Summer 62.889 68120 min Summer 40.340 124180 min Summer 31.112 180240 min Summer 25.876 216360 min Summer 19.957 280480 min Summer 16.598 348600 min Summer 14.387 418720 min Summer 12.801 488960 min Summer 10.285 6261440 min Summer 7.556 9022160 min Summer 5.551 13042880 min Summer 4.460 16844320 min Summer 3.311 23845760 min Summer 2.680 30087200 min Summer 2.275 36808640 min Summer 1.990 440810080 min Summer 1.777 5144

15 min Winter 152.846 2530 min Winter 98.042 3960 min Winter 62.889 66120 min Winter 40.340 122

Page 3: URS Infrastructure & Environment UK Ltd Page 1 Scott House ... · Storage isOnlineCover Level (m)60.000 Tank or Pond Structure Invert Level (m)58.000 Depth (m)Area (m² ... Half Drain

URS Infrastructure & Environment UK Ltd Page 2

Scott House Whitecleave Quarry

Alencon Link IBA Facility and Proc...

Basingstoke RG21 7PP Surface Water Runoff ...

Date 01/03/2013 Designed by MJC

File 130301 100yr_IBA... Checked by

Micro Drainage Source Control W.12.6

Summary of Results for 100 year Return Period (+20%)

©1982-2011 Micro Drainage Ltd

Storm

Event

Max

Level

(m)

Max

Depth

(m)

Max

Control

(l/s)

Max

Volume

(m³)

Status

180 min Winter 59.758 1.758 26.5 747.2 O K240 min Winter 59.833 1.833 27.1 779.2 O K360 min Winter 59.905 1.905 27.6 809.8 Flood Risk480 min Winter 59.942 1.942 27.8 825.4 Flood Risk600 min Winter 59.950 1.950 27.9 828.7 Flood Risk720 min Winter 59.940 1.940 27.8 824.5 Flood Risk960 min Winter 59.802 1.802 26.8 766.0 O K1440 min Winter 59.533 1.533 24.9 651.7 O K2160 min Winter 59.164 1.164 22.8 494.7 O K2880 min Winter 58.801 0.801 22.8 340.3 O K4320 min Winter 58.332 0.332 22.3 141.0 O K5760 min Winter 58.243 0.243 18.9 103.1 O K7200 min Winter 58.206 0.206 16.2 87.6 O K8640 min Winter 58.183 0.183 14.2 77.8 O K10080 min Winter 58.167 0.167 12.7 71.0 O K

Storm

Event

Rain

(mm/hr)

Time-Peak

(mins)

180 min Winter 31.112 178240 min Winter 25.876 232360 min Winter 19.957 292480 min Winter 16.598 370600 min Winter 14.387 448720 min Winter 12.801 526960 min Winter 10.285 6781440 min Winter 7.556 9702160 min Winter 5.551 13922880 min Winter 4.460 17884320 min Winter 3.311 23325760 min Winter 2.680 29927200 min Winter 2.275 36728640 min Winter 1.990 440810080 min Winter 1.777 5136

Page 4: URS Infrastructure & Environment UK Ltd Page 1 Scott House ... · Storage isOnlineCover Level (m)60.000 Tank or Pond Structure Invert Level (m)58.000 Depth (m)Area (m² ... Half Drain

URS Infrastructure & Environment UK Ltd Page 3

Scott House Whitecleave Quarry

Alencon Link IBA Facility and Proc...

Basingstoke RG21 7PP Surface Water Runoff ...

Date 01/03/2013 Designed by MJC

File 130301 100yr_IBA... Checked by

Micro Drainage Source Control W.12.6

Rainfall Details

©1982-2011 Micro Drainage Ltd

Rainfall Model FEHReturn Period (years) 100

Site Location GB 273600 65550 SX 73600 65550C (1km) -0.031D1 (1km) 0.502D2 (1km) 0.382D3 (1km) 0.408E (1km) 0.305F (1km) 2.556

Summer Storms YesWinter Storms YesCv (Summer) 0.750Cv (Winter) 0.840

Shortest Storm (mins) 15Longest Storm (mins) 10080

Climate Change % +20

Time / Area Diagram

Total Area (ha) 1.213

Time

(mins)

Area

(ha)

Time

(mins)

Area

(ha)

Time

(mins)

Area

(ha)

0-4 0.404 4-8 0.404 8-12 0.404

Page 5: URS Infrastructure & Environment UK Ltd Page 1 Scott House ... · Storage isOnlineCover Level (m)60.000 Tank or Pond Structure Invert Level (m)58.000 Depth (m)Area (m² ... Half Drain

URS Infrastructure & Environment UK Ltd Page 4

Scott House Whitecleave Quarry

Alencon Link IBA Facility and Proc...

Basingstoke RG21 7PP Surface Water Runoff ...

Date 01/03/2013 Designed by MJC

File 130301 100yr_IBA... Checked by

Micro Drainage Source Control W.12.6

Model Details

©1982-2011 Micro Drainage Ltd

Storage is Online Cover Level (m) 60.000

Tank or Pond Structure

Invert Level (m) 58.000

Depth (m) Area (m²) Depth (m) Area (m²) Depth (m) Area (m²) Depth (m) Area (m²)

0.000 425.0 1.400 425.0 2.800 0.0 4.200 0.00.200 425.0 1.600 425.0 3.000 0.0 4.400 0.00.400 425.0 1.800 425.0 3.200 0.0 4.600 0.00.600 425.0 2.000 425.0 3.400 0.0 4.800 0.00.800 425.0 2.200 0.0 3.600 0.0 5.000 0.01.000 425.0 2.400 0.0 3.800 0.01.200 425.0 2.600 0.0 4.000 0.0

Hydro-Brake® Outflow Control

Design Head (m) 2.000 Hydro-Brake® Type Md6 SW Only Invert Level (m) 58.000Design Flow (l/s) 28.5 Diameter (mm) 187

Depth (m) Flow (l/s) Depth (m) Flow (l/s) Depth (m) Flow (l/s) Depth (m) Flow (l/s)

0.100 6.2 1.200 22.5 3.000 34.6 7.000 52.80.200 15.7 1.400 23.9 3.500 37.3 7.500 54.60.300 21.7 1.600 25.4 4.000 39.9 8.000 56.40.400 22.8 1.800 26.8 4.500 42.3 8.500 58.20.500 22.5 2.000 28.2 5.000 44.6 9.000 59.90.600 21.8 2.200 29.6 5.500 46.8 9.500 61.50.800 21.0 2.400 30.9 6.000 48.91.000 21.4 2.600 32.2 6.500 50.9

Page 6: URS Infrastructure & Environment UK Ltd Page 1 Scott House ... · Storage isOnlineCover Level (m)60.000 Tank or Pond Structure Invert Level (m)58.000 Depth (m)Area (m² ... Half Drain

URS Infrastructure & Environment UK Ltd Page 1

Scott House Whitecleave Quarry

Alencon Link Perimeter Drain Catch...

Basingstoke RG21 7PP

Date 7/03/2013 Designed by MJC

File Whitecleave Quar... Checked by

Micro Drainage Source Control W.12.6

ICP SUDS Mean Annual Flood

©1982-2011 Micro Drainage Ltd

Input

Return Period (years) 100 Soil 0.400Area (ha) 1.100 Urban 0.000SAAR (mm) 1715 Region Number Region 8

Results l/s

QBAR Rural 10.7QBAR Urban 10.7

Q100 years 25.8

Q1 year 8.3Q30 years 20.4Q100 years 25.8

Page 7: URS Infrastructure & Environment UK Ltd Page 1 Scott House ... · Storage isOnlineCover Level (m)60.000 Tank or Pond Structure Invert Level (m)58.000 Depth (m)Area (m² ... Half Drain

URS Infrastructure & Environment UK Ltd Page 1

Scott House Hydrologist

Alencon Link IBA Perimiter Ditch 1...

Basingstoke RG21 7PP 400m Length, 1.6m Width

Date 23/03/2013 Designed by MC

File 130312 100yr_IBA... Checked by

Micro Drainage Source Control W.12.6

Summary of Results for 100 year Return Period (+20%)

©1982-2011 Micro Drainage Ltd

Half Drain Time : 297 minutes.

Storm

Event

Max

Level

(m)

Max

Depth

(m)

Max

Infiltration

(l/s)

Max

Control

(l/s)

Max

Σ Outflow

(l/s)

Max

Volume

(m³)

Status

15 min Summer 59.089 0.689 0.0 6.7 6.7 312.7 O K30 min Summer 59.208 0.808 0.0 19.7 19.7 389.0 O K60 min Summer 59.344 0.944 0.0 25.2 25.2 476.1 O K120 min Summer 59.505 1.105 0.0 25.2 25.2 579.3 O K180 min Summer 59.605 1.205 0.0 25.2 25.2 642.9 O K240 min Summer 59.669 1.269 0.0 25.2 25.2 684.4 O K360 min Summer 59.760 1.360 0.0 25.2 25.2 742.3 Flood Risk480 min Summer 59.820 1.420 0.0 25.2 25.2 780.9 Flood Risk600 min Summer 59.861 1.461 0.0 25.2 25.2 807.2 Flood Risk720 min Summer 59.889 1.489 0.0 25.2 25.2 824.8 Flood Risk960 min Summer 59.869 1.469 0.0 25.2 25.2 812.3 Flood Risk1440 min Summer 59.795 1.395 0.0 25.2 25.2 765.1 Flood Risk2160 min Summer 59.649 1.249 0.0 25.2 25.2 671.5 O K2880 min Summer 59.486 1.086 0.0 25.2 25.2 567.3 O K4320 min Summer 59.304 0.904 0.0 24.8 24.8 450.4 O K5760 min Summer 59.239 0.839 0.0 22.1 22.1 408.8 O K7200 min Summer 59.206 0.806 0.0 19.5 19.5 387.7 O K8640 min Summer 59.183 0.783 0.0 17.4 17.4 373.3 O K10080 min Summer 59.167 0.767 0.0 15.7 15.7 363.0 O K

15 min Winter 59.143 0.743 0.0 13.0 13.0 347.6 O K30 min Winter 59.277 0.877 0.0 24.0 24.0 433.2 O K60 min Winter 59.440 1.040 0.0 25.2 25.2 537.5 O K

Storm

Event

Rain

(mm/hr)

Time-Peak

(mins)

15 min Summer 152.846 2630 min Summer 98.042 3960 min Summer 62.889 66120 min Summer 40.340 124180 min Summer 31.112 180240 min Summer 25.876 220360 min Summer 19.957 282480 min Summer 16.598 348600 min Summer 14.387 416720 min Summer 12.801 486960 min Summer 10.285 6221440 min Summer 7.556 8942160 min Summer 5.551 12842880 min Summer 4.460 16404320 min Summer 3.311 22885760 min Summer 2.680 29527200 min Summer 2.275 36808640 min Summer 1.990 440810080 min Summer 1.777 5144

15 min Winter 152.846 2630 min Winter 98.042 3860 min Winter 62.889 66

Page 8: URS Infrastructure & Environment UK Ltd Page 1 Scott House ... · Storage isOnlineCover Level (m)60.000 Tank or Pond Structure Invert Level (m)58.000 Depth (m)Area (m² ... Half Drain

URS Infrastructure & Environment UK Ltd Page 2

Scott House Hydrologist

Alencon Link IBA Perimiter Ditch 1...

Basingstoke RG21 7PP 400m Length, 1.6m Width

Date 23/03/2013 Designed by MC

File 130312 100yr_IBA... Checked by

Micro Drainage Source Control W.12.6

Summary of Results for 100 year Return Period (+20%)

©1982-2011 Micro Drainage Ltd

Storm

Event

Max

Level

(m)

Max

Depth

(m)

Max

Infiltration

(l/s)

Max

Control

(l/s)

Max

Σ Outflow

(l/s)

Max

Volume

(m³)

Status

120 min Winter 59.632 1.232 0.0 25.2 25.2 660.5 O K180 min Winter 59.743 1.343 0.0 25.2 25.2 731.6 Flood Risk240 min Winter 59.813 1.413 0.0 25.2 25.2 776.4 Flood Risk360 min Winter 59.895 1.495 0.0 25.2 25.2 828.7 Flood Risk480 min Winter 59.950 1.550 0.0 25.2 25.2 864.1 Flood Risk600 min Winter 59.982 1.582 0.0 25.5 25.5 884.6 Flood Risk720 min Winter 59.999 1.599 0.0 25.7 25.7 895.1 Flood Risk960 min Winter 59.948 1.548 0.0 25.2 25.2 862.6 Flood Risk1440 min Winter 59.812 1.412 0.0 25.2 25.2 775.9 Flood Risk2160 min Winter 59.558 1.158 0.0 25.2 25.2 613.1 O K2880 min Winter 59.334 0.934 0.0 25.2 25.2 469.8 O K4320 min Winter 59.222 0.822 0.0 20.9 20.9 397.8 O K5760 min Winter 59.181 0.781 0.0 17.2 17.2 371.8 O K7200 min Winter 59.158 0.758 0.0 14.7 14.7 357.0 O K8640 min Winter 59.142 0.742 0.0 12.8 12.8 346.8 O K10080 min Winter 59.130 0.730 0.0 11.5 11.5 339.3 O K

Storm

Event

Rain

(mm/hr)

Time-Peak

(mins)

120 min Winter 40.340 122180 min Winter 31.112 178240 min Winter 25.876 232360 min Winter 19.957 294480 min Winter 16.598 370600 min Winter 14.387 448720 min Winter 12.801 524960 min Winter 10.285 6741440 min Winter 7.556 9602160 min Winter 5.551 13602880 min Winter 4.460 16204320 min Winter 3.311 22565760 min Winter 2.680 29687200 min Winter 2.275 36808640 min Winter 1.990 440810080 min Winter 1.777 5144

Page 9: URS Infrastructure & Environment UK Ltd Page 1 Scott House ... · Storage isOnlineCover Level (m)60.000 Tank or Pond Structure Invert Level (m)58.000 Depth (m)Area (m² ... Half Drain

URS Infrastructure & Environment UK Ltd Page 3

Scott House Hydrologist

Alencon Link IBA Perimiter Ditch 1...

Basingstoke RG21 7PP 400m Length, 1.6m Width

Date 23/03/2013 Designed by MC

File 130312 100yr_IBA... Checked by

Micro Drainage Source Control W.12.6

Rainfall Details

©1982-2011 Micro Drainage Ltd

Rainfall Model FEHReturn Period (years) 100

Site Location GB 273600 65550 SX 73600 65550C (1km) -0.031D1 (1km) 0.502D2 (1km) 0.382D3 (1km) 0.408E (1km) 0.305F (1km) 2.556

Summer Storms YesWinter Storms YesCv (Summer) 0.750Cv (Winter) 0.840

Shortest Storm (mins) 15Longest Storm (mins) 10080

Climate Change % +20

Time / Area Diagram

Total Area (ha) 1.100

Time

(mins)

Area

(ha)

Time

(mins)

Area

(ha)

Time

(mins)

Area

(ha)

0-4 0.367 4-8 0.367 8-12 0.367

Page 10: URS Infrastructure & Environment UK Ltd Page 1 Scott House ... · Storage isOnlineCover Level (m)60.000 Tank or Pond Structure Invert Level (m)58.000 Depth (m)Area (m² ... Half Drain

URS Infrastructure & Environment UK Ltd Page 4

Scott House Hydrologist

Alencon Link IBA Perimiter Ditch 1...

Basingstoke RG21 7PP 400m Length, 1.6m Width

Date 23/03/2013 Designed by MC

File 130312 100yr_IBA... Checked by

Micro Drainage Source Control W.12.6

Model Details

©1982-2011 Micro Drainage Ltd

Storage is Online Cover Level (m) 60.000

Infiltration Trench Structure

Infiltration Coefficient Base (m/hr) 0.00000 Trench Width (m) 1.6Infiltration Coefficient Side (m/hr) 0.00000 Trench Length (m) 400.0

Safety Factor 2.0 Slope (1:X) 1000.0Porosity 1.00 Cap Volume Depth (m) 0.000

Invert Level (m) 58.400 Cap Infiltration Depth (m) 0.000

Hydro-Brake® Outflow Control

Design Head (m) 1.000 Diameter (mm) 197Design Flow (l/s) 25.8 Invert Level (m) 59.000Hydro-Brake® Type Md12 SW Only

Depth (m) Flow (l/s) Depth (m) Flow (l/s) Depth (m) Flow (l/s) Depth (m) Flow (l/s)

0.100 8.0 1.200 28.1 3.000 44.4 7.000 67.90.200 19.0 1.400 30.4 3.500 48.0 7.500 70.30.300 24.7 1.600 32.4 4.000 51.3 8.000 72.60.400 24.7 1.800 34.4 4.500 54.4 8.500 74.80.500 23.0 2.000 36.3 5.000 57.4 9.000 77.00.600 22.2 2.200 38.0 5.500 60.2 9.500 79.10.800 23.4 2.400 39.7 6.000 62.81.000 25.7 2.600 41.4 6.500 65.4

Page 11: URS Infrastructure & Environment UK Ltd Page 1 Scott House ... · Storage isOnlineCover Level (m)60.000 Tank or Pond Structure Invert Level (m)58.000 Depth (m)Area (m² ... Half Drain

URS Infrastructure & Environment UK Ltd Page 1

Scott House Whitecleave Quarry

Alencon Link Phase 2 IBA Processin...

Basingstoke RG21 7PP Greenfield Runoff

Date 09/04/2012 Designed by MJC

File Phase 2 Whitecle... Checked by

Micro Drainage Source Control W.12.6

ICP SUDS Mean Annual Flood

©1982-2011 Micro Drainage Ltd

Input

Return Period (years) 100 Soil 0.400Area (ha) 1.780 Urban 0.000SAAR (mm) 1715 Region Number Region 8

Results l/s

QBAR Rural 17.3QBAR Urban 17.3

Q100 years 41.8

Q1 year 13.5Q30 years 32.9Q100 years 41.8

Page 12: URS Infrastructure & Environment UK Ltd Page 1 Scott House ... · Storage isOnlineCover Level (m)60.000 Tank or Pond Structure Invert Level (m)58.000 Depth (m)Area (m² ... Half Drain

URS Infrastructure & Environment UK Ltd Page 1

Scott House Phase 2 - Whitecleave...

Alencon Link IBA Facility and Proc...

Basingstoke RG21 7PP Surface Water Runoff ...

Date 10/04/2013 Designed by MJC

File 130410 Phase 2 1... Checked by

Micro Drainage Source Control W.12.6

Summary of Results for 100 year Return Period (+20%)

©1982-2011 Micro Drainage Ltd

Storm

Event

Max

Level

(m)

Max

Depth

(m)

Max

Control

(l/s)

Max

Volume

(m³)

Status

15 min Summer 58.131 1.131 28.7 480.8 O K30 min Summer 58.428 1.428 29.2 607.1 O K60 min Summer 58.763 1.763 32.0 749.2 O K120 min Summer 59.099 2.099 34.8 892.0 O K180 min Summer 59.262 2.262 36.1 961.3 O K240 min Summer 59.351 2.351 36.8 999.1 O K360 min Summer 59.460 2.460 37.6 1045.5 O K480 min Summer 59.517 2.517 38.0 1069.8 O K600 min Summer 59.545 2.545 38.3 1081.6 O K720 min Summer 59.554 2.554 38.3 1085.6 O K960 min Summer 59.432 2.432 37.4 1033.6 O K1440 min Summer 59.196 2.196 35.6 933.1 O K2160 min Summer 58.876 1.876 32.9 797.4 O K2880 min Summer 58.595 1.595 30.6 678.0 O K4320 min Summer 58.142 1.142 28.7 485.4 O K5760 min Summer 57.714 0.714 28.7 303.3 O K7200 min Summer 57.444 0.444 28.7 188.7 O K8640 min Summer 57.337 0.337 27.5 143.4 O K10080 min Summer 57.289 0.289 25.4 122.7 O K

15 min Winter 58.274 1.274 28.7 541.3 O K30 min Winter 58.609 1.609 30.7 684.0 O K60 min Winter 58.993 1.993 33.9 846.9 O K120 min Winter 59.390 2.390 37.1 1016.0 O K

Storm

Event

Rain

(mm/hr)

Time-Peak

(mins)

15 min Summer 152.846 2530 min Summer 98.042 3960 min Summer 62.889 68120 min Summer 40.340 124180 min Summer 31.112 180240 min Summer 25.876 216360 min Summer 19.957 282480 min Summer 16.598 348600 min Summer 14.387 418720 min Summer 12.801 488960 min Summer 10.285 6261440 min Summer 7.556 9022160 min Summer 5.551 13042880 min Summer 4.460 17004320 min Summer 3.311 24685760 min Summer 2.680 31687200 min Summer 2.275 37528640 min Summer 1.990 441610080 min Summer 1.777 5144

15 min Winter 152.846 2530 min Winter 98.042 3960 min Winter 62.889 66120 min Winter 40.340 122

Page 13: URS Infrastructure & Environment UK Ltd Page 1 Scott House ... · Storage isOnlineCover Level (m)60.000 Tank or Pond Structure Invert Level (m)58.000 Depth (m)Area (m² ... Half Drain

URS Infrastructure & Environment UK Ltd Page 2

Scott House Phase 2 - Whitecleave...

Alencon Link IBA Facility and Proc...

Basingstoke RG21 7PP Surface Water Runoff ...

Date 10/04/2013 Designed by MJC

File 130410 Phase 2 1... Checked by

Micro Drainage Source Control W.12.6

Summary of Results for 100 year Return Period (+20%)

©1982-2011 Micro Drainage Ltd

Storm

Event

Max

Level

(m)

Max

Depth

(m)

Max

Control

(l/s)

Max

Volume

(m³)

Status

180 min Winter 59.596 2.596 38.6 1103.2 O K240 min Winter 59.710 2.710 39.5 1151.9 Flood Risk360 min Winter 59.824 2.824 40.3 1200.0 Flood Risk480 min Winter 59.885 2.885 40.7 1226.1 Flood Risk600 min Winter 59.903 2.903 40.9 1234.0 Flood Risk720 min Winter 59.896 2.896 40.8 1230.9 Flood Risk960 min Winter 59.710 2.710 39.5 1151.7 Flood Risk1440 min Winter 59.350 2.350 36.8 998.8 O K2160 min Winter 58.880 1.880 33.0 799.2 O K2880 min Winter 58.477 1.477 29.6 627.9 O K4320 min Winter 57.708 0.708 28.7 301.0 O K5760 min Winter 57.334 0.334 27.4 141.9 O K7200 min Winter 57.265 0.265 23.7 112.6 O K8640 min Winter 57.231 0.231 20.8 98.1 O K10080 min Winter 57.208 0.208 18.6 88.5 O K

Storm

Event

Rain

(mm/hr)

Time-Peak

(mins)

180 min Winter 31.112 178240 min Winter 25.876 232360 min Winter 19.957 294480 min Winter 16.598 370600 min Winter 14.387 448720 min Winter 12.801 526960 min Winter 10.285 6761440 min Winter 7.556 9682160 min Winter 5.551 13882880 min Winter 4.460 17964320 min Winter 3.311 25485760 min Winter 2.680 30087200 min Winter 2.275 36808640 min Winter 1.990 440810080 min Winter 1.777 5136

Page 14: URS Infrastructure & Environment UK Ltd Page 1 Scott House ... · Storage isOnlineCover Level (m)60.000 Tank or Pond Structure Invert Level (m)58.000 Depth (m)Area (m² ... Half Drain

URS Infrastructure & Environment UK Ltd Page 3

Scott House Phase 2 - Whitecleave...

Alencon Link IBA Facility and Proc...

Basingstoke RG21 7PP Surface Water Runoff ...

Date 10/04/2013 Designed by MJC

File 130410 Phase 2 1... Checked by

Micro Drainage Source Control W.12.6

Rainfall Details

©1982-2011 Micro Drainage Ltd

Rainfall Model FEHReturn Period (years) 100

Site Location GB 273600 65550 SX 73600 65550C (1km) -0.031D1 (1km) 0.502D2 (1km) 0.382D3 (1km) 0.408E (1km) 0.305F (1km) 2.556

Summer Storms YesWinter Storms YesCv (Summer) 0.750Cv (Winter) 0.840

Shortest Storm (mins) 15Longest Storm (mins) 10080

Climate Change % +20

Time / Area Diagram

Total Area (ha) 1.780

Time

(mins)

Area

(ha)

Time

(mins)

Area

(ha)

Time

(mins)

Area

(ha)

0-4 0.593 4-8 0.593 8-12 0.593

Page 15: URS Infrastructure & Environment UK Ltd Page 1 Scott House ... · Storage isOnlineCover Level (m)60.000 Tank or Pond Structure Invert Level (m)58.000 Depth (m)Area (m² ... Half Drain

URS Infrastructure & Environment UK Ltd Page 4

Scott House Phase 2 - Whitecleave...

Alencon Link IBA Facility and Proc...

Basingstoke RG21 7PP Surface Water Runoff ...

Date 10/04/2013 Designed by MJC

File 130410 Phase 2 1... Checked by

Micro Drainage Source Control W.12.6

Model Details

©1982-2011 Micro Drainage Ltd

Storage is Online Cover Level (m) 60.000

Tank or Pond Structure

Invert Level (m) 57.000

Depth (m) Area (m²) Depth (m) Area (m²) Depth (m) Area (m²) Depth (m) Area (m²)

0.000 425.0 1.400 425.0 2.800 425.0 4.200 0.00.200 425.0 1.600 425.0 3.000 425.0 4.400 0.00.400 425.0 1.800 425.0 3.200 0.0 4.600 0.00.600 425.0 2.000 425.0 3.400 0.0 4.800 0.00.800 425.0 2.200 425.0 3.600 0.0 5.000 0.01.000 425.0 2.400 425.0 3.800 0.01.200 425.0 2.600 425.0 4.000 0.0

Hydro-Brake® Outflow Control

Design Head (m) 3.000 Hydro-Brake® Type Md6 SW Only Invert Level (m) 57.000Design Flow (l/s) 41.8 Diameter (mm) 205

Depth (m) Flow (l/s) Depth (m) Flow (l/s) Depth (m) Flow (l/s) Depth (m) Flow (l/s)

0.100 6.8 1.200 27.5 3.000 41.5 7.000 63.40.200 17.8 1.400 28.9 3.500 44.9 7.500 65.70.300 26.0 1.600 30.6 4.000 48.0 8.000 67.80.400 28.5 1.800 32.3 4.500 50.9 8.500 69.90.500 28.6 2.000 34.0 5.000 53.6 9.000 71.90.600 27.9 2.200 35.6 5.500 56.2 9.500 73.90.800 26.5 2.400 37.2 6.000 58.71.000 26.5 2.600 38.7 6.500 61.1

Page 16: URS Infrastructure & Environment UK Ltd Page 1 Scott House ... · Storage isOnlineCover Level (m)60.000 Tank or Pond Structure Invert Level (m)58.000 Depth (m)Area (m² ... Half Drain

URS Infrastructure & Environment UK Ltd Page 1

Scott House Whitecleave Quarry Ph...

Alencon Link Perimiter Drain

Basingstoke RG21 7PP Greenfield Runoff Rate

Date 11/04/2013 Designed by MC

File 130411 Phase 2 W... Checked by

Micro Drainage Source Control W.12.6

ICP SUDS Mean Annual Flood

©1982-2011 Micro Drainage Ltd

Input

Return Period (years) 100 Soil 0.400Area (ha) 2.030 Urban 0.000SAAR (mm) 1715 Region Number Region 8

Results l/s

QBAR Rural 19.7QBAR Urban 19.7

Q100 years 47.7

Q1 year 15.4Q30 years 37.6Q100 years 47.7

Page 17: URS Infrastructure & Environment UK Ltd Page 1 Scott House ... · Storage isOnlineCover Level (m)60.000 Tank or Pond Structure Invert Level (m)58.000 Depth (m)Area (m² ... Half Drain

URS Infrastructure & Environment UK Ltd Page 1

Scott House Whitecleave Quarry Ph...

Alencon Link Perimiter Ditch, 630 ...

Basingstoke RG21 7PP 1.6 wide, 1.6 deep

Date 11/04/2013 Designed by MC

File 130411 Phase 2 1... Checked by

Micro Drainage Source Control W.12.6

Summary of Results for 100 year Return Period (+20%)

©1982-2011 Micro Drainage Ltd

Half Drain Time : 253 minutes.

Storm

Event

Max

Level

(m)

Max

Depth

(m)

Max

Infiltration

(l/s)

Max

Control

(l/s)

Max

Σ Outflow

(l/s)

Max

Volume

(m³)

Status

15 min Summer 59.247 0.847 0.0 40.5 40.5 536.0 O K30 min Summer 59.383 0.983 0.0 40.5 40.5 672.9 O K60 min Summer 59.530 1.130 0.0 40.5 40.5 821.9 O K120 min Summer 59.670 1.270 0.0 42.3 42.3 962.1 O K180 min Summer 59.729 1.329 0.0 43.2 43.2 1022.5 Flood Risk240 min Summer 59.759 1.359 0.0 43.7 43.7 1052.1 Flood Risk360 min Summer 59.791 1.391 0.0 44.2 44.2 1084.2 Flood Risk480 min Summer 59.805 1.405 0.0 44.4 44.4 1098.5 Flood Risk600 min Summer 59.810 1.410 0.0 44.5 44.5 1103.3 Flood Risk720 min Summer 59.808 1.408 0.0 44.5 44.5 1101.8 Flood Risk960 min Summer 59.740 1.340 0.0 43.4 43.4 1033.4 Flood Risk1440 min Summer 59.609 1.209 0.0 41.3 41.3 901.6 O K2160 min Summer 59.429 1.029 0.0 40.5 40.5 719.5 O K2880 min Summer 59.264 0.864 0.0 40.5 40.5 553.3 O K4320 min Summer 58.976 0.576 0.0 40.5 40.5 265.3 O K5760 min Summer 58.782 0.382 0.0 40.2 40.2 116.5 O K7200 min Summer 58.704 0.304 0.0 36.8 36.8 74.1 O K8640 min Summer 58.661 0.261 0.0 32.8 32.8 54.5 O K10080 min Summer 58.633 0.233 0.0 29.4 29.4 43.4 O K

15 min Winter 59.315 0.915 0.0 40.5 40.5 605.2 O K30 min Winter 59.471 1.071 0.0 40.5 40.5 761.7 O K60 min Winter 59.644 1.244 0.0 41.9 41.9 936.1 O K

Storm

Event

Rain

(mm/hr)

Time-Peak

(mins)

15 min Summer 152.846 2530 min Summer 98.042 3960 min Summer 62.889 66120 min Summer 40.340 124180 min Summer 31.112 180240 min Summer 25.876 212360 min Summer 19.957 278480 min Summer 16.598 346600 min Summer 14.387 416720 min Summer 12.801 486960 min Summer 10.285 6241440 min Summer 7.556 9002160 min Summer 5.551 13002880 min Summer 4.460 16804320 min Summer 3.311 23805760 min Summer 2.680 29927200 min Summer 2.275 36728640 min Summer 1.990 440810080 min Summer 1.777 5136

15 min Winter 152.846 2530 min Winter 98.042 3960 min Winter 62.889 66

Page 18: URS Infrastructure & Environment UK Ltd Page 1 Scott House ... · Storage isOnlineCover Level (m)60.000 Tank or Pond Structure Invert Level (m)58.000 Depth (m)Area (m² ... Half Drain

URS Infrastructure & Environment UK Ltd Page 2

Scott House Whitecleave Quarry Ph...

Alencon Link Perimiter Ditch, 630 ...

Basingstoke RG21 7PP 1.6 wide, 1.6 deep

Date 11/04/2013 Designed by MC

File 130411 Phase 2 1... Checked by

Micro Drainage Source Control W.12.6

Summary of Results for 100 year Return Period (+20%)

©1982-2011 Micro Drainage Ltd

Storm

Event

Max

Level

(m)

Max

Depth

(m)

Max

Infiltration

(l/s)

Max

Control

(l/s)

Max

Σ Outflow

(l/s)

Max

Volume

(m³)

Status

120 min Winter 59.815 1.415 0.0 44.6 44.6 1108.8 Flood Risk180 min Winter 59.896 1.496 0.0 45.8 45.8 1190.8 Flood Risk240 min Winter 59.936 1.536 0.0 46.4 46.4 1231.2 Flood Risk360 min Winter 59.969 1.569 0.0 46.9 46.9 1263.9 Flood Risk480 min Winter 59.981 1.581 0.0 47.1 47.1 1275.7 Flood Risk600 min Winter 59.977 1.577 0.0 47.0 47.0 1271.8 Flood Risk720 min Winter 59.964 1.564 0.0 46.8 46.8 1258.7 Flood Risk960 min Winter 59.859 1.459 0.0 45.2 45.2 1153.6 Flood Risk1440 min Winter 59.659 1.259 0.0 42.1 42.1 952.0 O K2160 min Winter 59.386 0.986 0.0 40.5 40.5 676.7 O K2880 min Winter 59.116 0.716 0.0 40.5 40.5 404.1 O K4320 min Winter 58.734 0.334 0.0 38.6 38.6 89.4 O K5760 min Winter 58.654 0.254 0.0 32.0 32.0 51.7 O K7200 min Winter 58.617 0.217 0.0 27.3 27.3 37.5 O K8640 min Winter 58.593 0.193 0.0 23.8 23.8 29.7 O K10080 min Winter 58.576 0.176 0.0 21.3 21.3 24.6 O K

Storm

Event

Rain

(mm/hr)

Time-Peak

(mins)

120 min Winter 40.340 122180 min Winter 31.112 178240 min Winter 25.876 230360 min Winter 19.957 292480 min Winter 16.598 370600 min Winter 14.387 448720 min Winter 12.801 526960 min Winter 10.285 6761440 min Winter 7.556 9682160 min Winter 5.551 13882880 min Winter 4.460 17684320 min Winter 3.311 22565760 min Winter 2.680 29367200 min Winter 2.275 36488640 min Winter 1.990 440010080 min Winter 1.777 5008

Page 19: URS Infrastructure & Environment UK Ltd Page 1 Scott House ... · Storage isOnlineCover Level (m)60.000 Tank or Pond Structure Invert Level (m)58.000 Depth (m)Area (m² ... Half Drain

URS Infrastructure & Environment UK Ltd Page 3

Scott House Whitecleave Quarry Ph...

Alencon Link Perimiter Ditch, 630 ...

Basingstoke RG21 7PP 1.6 wide, 1.6 deep

Date 11/04/2013 Designed by MC

File 130411 Phase 2 1... Checked by

Micro Drainage Source Control W.12.6

Rainfall Details

©1982-2011 Micro Drainage Ltd

Rainfall Model FEHReturn Period (years) 100

Site Location GB 273600 65550 SX 73600 65550C (1km) -0.031D1 (1km) 0.502D2 (1km) 0.382D3 (1km) 0.408E (1km) 0.305F (1km) 2.556

Summer Storms YesWinter Storms YesCv (Summer) 0.750Cv (Winter) 0.840

Shortest Storm (mins) 15Longest Storm (mins) 10080

Climate Change % +20

Time / Area Diagram

Total Area (ha) 2.030

Time

(mins)

Area

(ha)

Time

(mins)

Area

(ha)

Time

(mins)

Area

(ha)

0-4 0.677 4-8 0.677 8-12 0.677

Page 20: URS Infrastructure & Environment UK Ltd Page 1 Scott House ... · Storage isOnlineCover Level (m)60.000 Tank or Pond Structure Invert Level (m)58.000 Depth (m)Area (m² ... Half Drain

URS Infrastructure & Environment UK Ltd Page 4

Scott House Whitecleave Quarry Ph...

Alencon Link Perimiter Ditch, 630 ...

Basingstoke RG21 7PP 1.6 wide, 1.6 deep

Date 11/04/2013 Designed by MC

File 130411 Phase 2 1... Checked by

Micro Drainage Source Control W.12.6

Model Details

©1982-2011 Micro Drainage Ltd

Storage is Online Cover Level (m) 60.000

Infiltration Trench Structure

Infiltration Coefficient Base (m/hr) 0.00000 Trench Width (m) 1.6Infiltration Coefficient Side (m/hr) 0.00000 Trench Length (m) 630.0

Safety Factor 2.0 Slope (1:X) 1000.0Porosity 1.00 Cap Volume Depth (m) 0.000

Invert Level (m) 58.400 Cap Infiltration Depth (m) 0.000

Hydro-Brake® Outflow Control

Design Head (m) 1.600 Diameter (mm) 238Design Flow (l/s) 47.7 Invert Level (m) 58.400Hydro-Brake® Type Md12 SW Only

Depth (m) Flow (l/s) Depth (m) Flow (l/s) Depth (m) Flow (l/s) Depth (m) Flow (l/s)

0.100 9.7 1.200 41.1 3.000 64.8 7.000 99.10.200 24.9 1.400 44.3 3.500 70.0 7.500 102.50.300 36.4 1.600 47.4 4.000 74.9 8.000 105.90.400 40.4 1.800 50.2 4.500 79.4 8.500 109.20.500 39.3 2.000 52.9 5.000 83.7 9.000 112.30.600 36.9 2.200 55.5 5.500 87.8 9.500 115.40.800 35.7 2.400 58.0 6.000 91.71.000 38.0 2.600 60.4 6.500 95.5


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