06/02/2013
Unit 12, Owenacurra Business Park, Midleton, Co. Cork
T +353 21 4631600 F +353 21 4638690 E [email protected]
Employer’s Representative:
WYG EPT Ltd.
Arndale Court,
Headingley,
Leeds,
United Kingdom,
LS6 2UJ
Employer:
Cork County Council
Environmental Directorate,
Cork County Council,
Inniscara,
Co. Cork.
HAULBOWLINE EAST TIP –
EXPLORATORY GROUND INVESTIGATION
FACTUAL REPORT
NO. P12030
VOL. 2
P12030_RP_F02 i 06/02/2013
TABLE OF CONTENTS
1 INTRODUCTION.............................................................................................................................. 1 1.1 SCOPE OF WORKS........................................................................................................................ 1 1.2 REPORTING ................................................................................................................................. 2 1.3 SITE LOCATION & DESCRIPTION .................................................................................................... 2 1.4 GEOLOGY ................................................................................................................................... 3
1.4.1 Solid ................................................................................................................................... 3 1.4.2 Superficial .......................................................................................................................... 3
2 FIELDWORK.................................................................................................................................... 4 2.1 GENERAL .................................................................................................................................... 4 2.2 EXPLORATORY HOLES .................................................................................................................. 5 2.3 GROUNDWATER MONITORING ....................................................................................................... 6 2.4 GROUND GAS .............................................................................................................................. 7 2.5 SAMPLING ................................................................................................................................... 7 2.6 IN-SITU TESTING .......................................................................................................................... 8
3 LABORATORY TESTING ............................................................................................................. 11 3.1 ENVIRONMENTAL - SOLID ........................................................................................................... 12 3.2 ENVIRONMENTAL - WATER .......................................................................................................... 16 3.3 GEOTECHNICAL - SOIL ................................................................................................................ 19 3.4 GEOTECHNICAL - ROCK ............................................................................................................ 19
4 GROUND CONDITIONS................................................................................................................ 20 4.1 GROUNDWATER ......................................................................................................................... 21 4.2 GROUND GAS........................................................................................................................... 24
5 SUMMARY..................................................................................................................................... 25
P12030_RP_F02 ii 06/02/2013
APPENDICES
VOL. 1
APPENDIX A EXPLORATORY HOLE RECORDS AND PHOTOGRAPHIC RECORDS
VOL. 2
APPENDIX B In situ PERMEABILITY TEST DATA
APPENDIX C GROUNDWATER AND GROUND GAS MONITORING DATA
VOL. 3
APPENDIX D1 LABORATORY RESULTS- SOIL
VOL. 4
APPENDIX D2 LABORATORY RESULTS- WATER
VOL. 5
APPENDIX D3 LABORATORY RESULTS- WATER, PAH and GEOTECHNICAL
APPENDIX E EXPLORATION LOCATION LAYOUT & PLANS
APPENDIX F AGREED METHOD STATEMENTS AND PROCEDURES
APPENDIX B
In situ PERMEABILITY TEST DATA
Haulbowline Island
Date and Time: 17/05/12; 10:33
BH301
Weather/Site conditions: Dry, overcast
Tidal conditions/Time: Rising tide (Low tide 10:21, High tide 16:12)
Static water level (m below top of casing): 9.16 @ 09:52
Initial water level (m below top of casing): 0.44 @ 10:33
Casing diameter (mm ID): 195
Height of casing (m above ground level): 0.23
Depth of casing (m below top of casing): 10.23
Depth of hole (m below top of casing): 10.45
Depth interval of material tested: 10.00 - 10.22 mbgl
Description of material in test interval: Alluvium
Depth of hole at end of test (m below top of casing): 10.45
Time (minutes)
Water level (m below top of casing) Other Notes/Observations
0.0 0.44 Started filling borehole @ 10:00; flow rate approx 0.2 l/s;0.5 - stopped filling @ 10:331.0 -1.5 -2.0 0.862.5 -3.0 1.203.5 -4.0 1.414.5 -5 1.676 1.897 2.098 -9 -
10 2.2512 2.7614 2.9716 3.03
18 19 3.1120 21 3.1725 24 3.2230 29 3.27
35 3.2840 41 3.29
45 3.29
50 46 3.29 Logger taken out of borehole55 -
60 -
Borehole ID:
In-situ Permeability (Falling Head) Test during Drilling - Field DatasheetSite name:
Haulbowline - Falling Head Test during Drilling - BH301 - Alluvium - 10.0m-10.22m
0.010
0.100
1.000
0.0 500.0 1000.0 1500.0 2000.0 2500.0
Elapsed Time (seconds)
Hea
d R
atio
h/h
0 (lo
g sc
ale)
Delta h/h0Time Lag (0.37)
Segment A Segment B Segment C
Where T0 cannot be determined from graph
Well point or hole extended at impervious boundary
Length L (m) = 0.22 F = 0.536 Eqn. 1Diameter D (m) = 0.195 F = 1.426 Eqn. 2
F = 1.063 Eqn. 3
P = rc =T0 = F = K = #DIV/0!K = #DIV/0!
P = 3.14rc = 0.0975t1 = 0t2 = 250H1 = 8.654H2 = 7.442F = 1.426K = 1.E-05
ApplicationMethod Applied for Permeability Calculation
Equation Application
K = Prc2/T0FK = [Prc2/F(t2-t1)][logeH1/H2]
Where T0 can be determined from graph
Soil flush with bottom in uniform soil
Determination of T0 from GraphT 0 = (Pr c
2 )/(FK)Time lag T0 = time taken for 63% of recovery i.e. time at which Dh/Dh0 = 0.37
Determination of F (Shape Factor)
Eq. 3: F = [2πL] / [log e (2L/D) + sqrt(1+((2L)2 /D)]
Initial water level (m below top of casing)Permeability Test TypeAnalysis Method Reference
Eq. 1: F = 2.75D
Equation
Falling head test during drillingBS5930:1999 and Hvorslev (1951)
9.094m btoc @ 09:59 (from logger data)0.44 btoc @ 10:33:41 (manual dip reading)
Test depth interval (m below ground level)Test material descriptionStatic water level (m below top of casing)
Borehole nameCasing internal diameter (mm)Casing depth (m below ground level)Depth of hole (m below ground level)
BH301 (Graph Segment A)19510
Eq. 2: F = [2πL] / [log e (L/D) + sqrt(1+(L/D)2 ] Well point or hole extended in uniform soil
10.220.2310.0 - 10.22Alluvium (Silt)
Height of casing (m above ground level)
Date of Test
Cork County Council/White Young GreenHaulbowlineIE718 (IE Consulting Reference)17/05/2012
ANALYSIS SHEET OF IN-SITU PERMEABILTY TEST DATAClientLocationProject Number
where:PiCasing inner radius (m)Time lag (sec)
where:
Permeability K (m/s) Equation (where T0 can be determined from the graph) K = Pr c 2 /T 0 F
For this test, where open hole extends into uniform silt layer, Eqn. 2 is applied
Shape Factor
Head measured at Time 2 (m)
Permeability K (m/s) Equation (where T0 cannot be determined from the graph)
K = [Pr c 2 /F(t 2 -t 1 )][log e H 1 /H 2 ]where:
Permeability (m/sec)Permeability (m/day)
Tidal Conditions Low Tide 10:21; High Tide 16:12
Permeability (m/sec)
PiCasing inner radius (m)
Shape Factor
Time 1 after commencement of test (sec)Time 1 after commencement of test (sec)Head measured at Time 1 (m)
Where T0 cannot be determined from graph
Well point or hole extended at impervious boundary
Length L (m) = 0.22 F = 0.536 Eqn. 1Diameter D (m) = 0.195 F = 1.426 Eqn. 2
F = 1.063 Eqn. 3
P = rc =T0 = F = K = #DIV/0!K = #DIV/0!
P = 3.14rc = 0.0975t1 = 500t2 = 750H1 = 6.656H2 = 6.119F = 1.426K = 7.E-06
Tidal Conditions Low Tide 10:21; High Tide 16:12
Permeability (m/sec)
PiCasing inner radius (m)
Shape Factor
Time 1 after commencement of test (sec)Time 1 after commencement of test (sec)Head measured at Time 1 (m)
Shape Factor
Head measured at Time 2 (m)
Permeability K (m/s) Equation (where T0 cannot be determined from the graph)
K = [Pr c 2 /F(t 2 -t 1 )][log e H 1 /H 2 ]where:
Permeability (m/sec)Permeability (m/day)
where:
Permeability K (m/s) Equation (where T0 can be determined from the graph) K = Pr c 2 /T 0 F
For this test, where open hole extends into uniform silt layer, Eqn. 2 is applied
where:PiCasing inner radius (m)Time lag (sec)
ANALYSIS SHEET OF IN-SITU PERMEABILTY TEST DATAClientLocationProject Number Date of Test
Cork County Council/White Young GreenHaulbowlineIE718 (IE Consulting Reference)17/05/2012
BH301 (Graph Segment B)19510
Eq. 2: F = [2πL] / [log e (L/D) + sqrt(1+(L/D)2 ] Well point or hole extended in uniform soil
10.220.2310.0 - 10.22Alluvium (Silt)
Height of casing (m above ground level)Test depth interval (m below ground level)Test material descriptionStatic water level (m below top of casing)
Borehole nameCasing internal diameter (mm)Casing depth (m below top of casing)Depth of hole (m below ground level)
Falling head test during drillingBS5930:1999 and Hvorslev (1951)
9.094m btoc @ 09:59 (from logger data)0.44 btoc @ 10:33:41 (manual dip reading)
Eq. 3: F = [2πL] / [log e (2L/D) + sqrt(1+((2L)2 /D)]
Initial water level (m below top of casing)Permeability Test TypeAnalysis Method Reference
Eq. 1: F = 2.75D
Equation
Soil flush with bottom in uniform soil
Determination of T0 from GraphT 0 = (Pr c
2 )/(FK)Time lag T0 = time taken for 63% of recovery i.e. time at which Dh/Dh0 = 0.37
Determination of F (Shape Factor)
ApplicationMethod Applied for Permeability Calculation
Equation Application
K = Prc2/T0FK = [Prc2/F(t2-t1)][logeH1/H2]
Where T0 can be determined from graph
Where T0 cannot be determined from graph
Well point or hole extended at impervious boundary
Length L (m) = 0.22 F = 0.536 Eqn. 1Diameter D (m) = 0.195 F = 1.426 Eqn. 2
F = 1.063 Eqn. 3
P = rc =T0 = F = K = #DIV/0!K = #DIV/0!
P = 3.14rc = 0.0975t1 = 1000t2 = 2000H1 = 5.965H2 = 5.754F = 1.426K = 8.E-07
ApplicationMethod Applied for Permeability Calculation
Equation Application
K = Prc2/T0FK = [Prc2/F(t2-t1)][logeH1/H2]
Where T0 can be determined from graph
Soil flush with bottom in uniform soil
Determination of T0 from GraphT 0 = (Pr c
2 )/(FK)Time lag T0 = time taken for 63% of recovery i.e. time at which Dh/Dh0 = 0.37
Determination of F (Shape Factor)
Eq. 3: F = [2πL] / [log e (2L/D) + sqrt(1+((2L)2 /D)]
Initial water level (m below top of casing)Permeability Test TypeAnalysis Method Reference
Eq. 1: F = 2.75D
Equation
Falling head test during drillingBS5930:1999 and Hvorslev (1951)
9.094m btoc @ 09:59 (from logger data)0.44 btoc @ 10:33:41 (manual dip reading)
Test depth interval (m below ground level)Test material descriptionStatic water level (m below top of casing)
Borehole nameCasing internal diameter (mm)Casing depth (m below top of casing)Depth of hole (m below ground level)
BH301 (Graph Segment C)19510
Eq. 2: F = [2πL] / [log e (L/D) + sqrt(1+(L/D)2 ] Well point or hole extended in uniform soil
10.220.2310.0 - 10.22Alluvium (Silt)
Height of casing (m above ground level)
Date of Test
Cork County Council/White Young GreenHaulbowlineIE718 (IE Consulting Reference)17/05/2012
ANALYSIS SHEET OF IN-SITU PERMEABILTY TEST DATAClientLocationProject Number
where:PiCasing inner radius (m)Time lag (sec)
where:
Permeability K (m/s) Equation (where T0 can be determined from the graph) K = Pr c 2 /T 0 F
For this test, where open hole extends into uniform silt layer, Eqn. 2 is applied
Shape Factor
Head measured at Time 2 (m)
Permeability K (m/s) Equation (where T0 cannot be determined from the graph)
K = [Pr c 2 /F(t 2 -t 1 )][log e H 1 /H 2 ]where:
Permeability (m/sec)Permeability (m/day)
Tidal Conditions Low Tide 10:21; High Tide 16:12
Permeability (m/sec)
PiCasing inner radius (m)
Shape Factor
Time 1 after commencement of test (sec)Time 1 after commencement of test (sec)Head measured at Time 1 (m)
Haulbowline Island
Date and Time: 24/05/12; 15:03
BH302
Weather/Site conditions: Dry, sunny & warm
Tidal conditions/Time: Falling tide (High tide 8:08, Low tide 14:32)
Static water level (m below top of casing): 4.04 @ 14:25
Initial water level (m below top of casing): 0.14 @ 13:03
Casing diameter (mm ID): 300
Height of casing (m above ground level): 0.50
Depth of casing (m below top of casing): 7.01
Depth of hole (m below top of casing): 7.00
Depth interval of material tested: 6.5 mbgl
Description of material in test interval: Slag/Fill
Depth of hole at end of test (m below top of casing): 6.95
Time (minutes)
Water level (m below top of casing) Other Notes/Observations
0.0 0.14 Started filling borehole @ 14:35; flow rate approx 0.2 l/s;0.5 - stopped filling @ 15:031.0 0.211.5 0.252.0 0.302.5 0.353.0 0.393.5 -4.0 0.464.5 -5 0.556 0.637 0.728 -9 0.92
10 0.9212 13 1.10
14 1.1216 -18 -
20 21 1.5125 24 11.6430 27 1.75 (32 mins - 1.90m)
35 2.0040 2.09
45 47 2.16
50 52 2.20
55 -
60 2.25 continued overleaf
Borehole ID:
In-situ Permeability (Falling Head) Test during Drilling - Field DatasheetSite name:
Haulbowline Island
Date and Time: 24/05/12 ; 15:03
BH302
Weather/Site conditions: Dry, sunny & warm
Tidal conditions/Time: Falling tide (High tide 8:08, Low tide 14:32)
Static water level (m below top of casing): 4.04 @ 14:25
Initial water level (m below top of casing): 0.14 @ 15:03
Casing diameter (mm ID): 300
Height of casing (m above ground level): 0.50
Depth of casing (m below top of casing): 7.00
Depth of hole (m below top of casing): 7.00
Depth interval of material tested: 6.5 mbgl
Description of material in test interval: Slag/Fill
Depth of hole at end of test (m below top of casing): 6.95
Time (minutes)
Water level (m below top of casing) Other Notes/Observations
0 65 2.28 continued0.5 71 2.301 80 2.35
1.5 84 2.382 88 2.39
2.5 90 2.403 95 2.42
3.5 100 2.444 107 2.47
4.5 114 2.505 119 2.52 Logger taken out of borehole
Borehole ID:
In-situ Permeability (Falling Head) Test during Drilling - Field DatasheetSite name:
Haulbowline - Falling Head Test during Drilling - BH302 - Slag/Fill - 6.5m
0.010
0.100
1.000
0.0 500.0 1000.0 1500.0 2000.0 2500.0
Elapsed Time (seconds)
Hea
d R
atio
h/h
0 (lo
g sc
ale)
Delta h/h0Time Lag (0.37)
Where T0 cannot be determined from graph
Well point or hole extended at impervious boundary
Length L (m) = 0 F = 0.825 Eqn. 1Diameter D (m) = 0.3 F = #DIV/0! Eqn. 2
F = #DIV/0! Eqn. 3
P = rc =T0 = F = K = #DIV/0!K = #DIV/0!
P = 3.14rc = 0.15t1 = 250t2 = 1500H1 = 3.805H2 = 2.622F = 0.825K = 3.E-05
ApplicationMethod Applied for Permeability Calculation
Equation Application
K = Prc2/T0FK = [Prc2/F(t2-t1)][logeH1/H2]
Where T0 can be determined from graph
Soil flush with bottom in uniform soil
Determination of T0 from GraphT 0 = (Pr c
2 )/(FK)Time lag T0 = time taken for 63% of recovery i.e. time at which Dh/Dh0 = 0.37
Determination of F (Shape Factor)
Eq. 3: F = [2πL] / [log e (2L/D) + sqrt(1+((2L)2 /D)]
Initial water level (m below top of casing)Permeability Test TypeAnalysis Method Reference
Eq. 1: F = 2.75D
Equation
Falling head test during drillingBS5930:1999 and Hvorslev (1951)
4.305m btoc @ 14:32:00 (from logger data)0.14m btoc @ 15:03:12 (manual dip reading)
Test depth interval (m below ground level)Test material descriptionStatic water level (m below top of casing)
Borehole nameCasing internal diameter (mm)Casing depth (m below ground level)Depth of hole (m below ground level)
BH302 3006.5
Eq. 2: F = [2πL] / [log e (L/D) + sqrt(1+(L/D)2 ] Well point or hole extended in uniform soil
6.50.56.5Slag/Fill
Height of casing (m above ground level)
Date of Test
Cork County Council/White Young GreenHaulbowlineIE718 (IE Consulting Reference)24/05/2012
ANALYSIS SHEET OF IN-SITU PERMEABILTY TEST DATAClientLocationProject Number
where:PiCasing inner radius (m)Time lag (sec)
where:
Permeability K (m/s) Equation (where T0 can be determined from the graph) K = Pr c 2 /T 0 F
For this test, where the soil is flush with bottom in uniform soil, Eqn. 1 is applied
Shape Factor
Head measured at Time 2 (m)
Permeability K (m/s) Equation (where T0 cannot be determined from the graph)
K = [Pr c 2 /F(t 2 -t 1 )][log e H 1 /H 2 ]where:
Permeability (m/sec)Permeability (m/day)
Tidal Conditions Low Tide 14:32; High Tide 08:08
Permeability (m/sec)
PiCasing inner radius (m)
Shape Factor
Time 1 after commencement of test (sec)Time 1 after commencement of test (sec)Head measured at Time 1 (m)
Haulbowline Island
Date and Time: 15/05/12 ; 14:48
BH303
Weather/Site conditions: Dry, overcast
Tidal conditions/Time: Falling Tide (High tide 14:21, Low tide 21:00)
Static water level (m below top of casing): 3.76 @ 14:37
Initial water level (m below top of casing): 0.62 @ 14:48
Casing diameter (mm ID): 195
Height of casing (m above ground level): 0.23
Depth of casing (m below top of casing): 10.39
Depth of hole (m below top of casing): 10.39
Depth interval of material tested: 10.16 mbgl
Description of material in test interval: Alluvium
Depth of hole at end of test (m below top of casing): 10.10
Time (minutes)
Water level (m below top of casing) Other Notes/Observations
0.0 0.62 Started filling borehole @ 14:44; flow rate approx 0.4 l/s;0.5 - stopped filling @ 14:481.0 -1.5 0.642.0 -2.5 0.663.0 -3.5 0.664.0 -4.5 0.66
5 5.5 0.666 6.5 0.66
7 -8 -9 -
10 -12 -14 0.66
16 15 0.6618 16 0.6620 22 0.6825 23 0.68
30 -35 38 0.71
40 -45 -
50 -
55 -
60 0.75 Logger taken out of Borehole
Borehole ID:
In-situ Permeability (Falling Head) Test during Drilling - Field DatasheetSite name:
Haulbowline - Falling Head Test during Drilling - BH303 - Alluvium - 10.16m
0.010
0.100
1.000
0.0 500.0 1000.0 1500.0 2000.0 2500.0
Elapsed Time (seconds)
Hea
d R
atio
h/h
0 (lo
g sc
ale)
Delta h/h0Time Lag (0.37)
Where T0 cannot be determined from graph
Well point or hole extended at impervious boundary
Length L (m) = 0 F = 0.536 Eqn. 1Diameter D (m) = 0.195 F = #DIV/0! Eqn. 2
F = #DIV/0! Eqn. 3
P = rc =T0 = F = K = #DIV/0!K = #DIV/0!
P = 3.14rc = 0.0975t1 = 0t2 = 3859.5H1 = 3.136H2 = 2.971F = 0.536K = 8.E-07
Tidal Conditions Low Tide 21:00; High Tide 14:21
Permeability (m/sec)
PiCasing inner radius (m)
Shape Factor
Time 1 after commencement of test (sec)Time 1 after commencement of test (sec)Head measured at Time 1 (m)
Shape Factor
Head measured at Time 2 (m)
Permeability K (m/s) Equation (where T0 cannot be determined from the graph)
K = [Pr c 2 /F(t 2 -t 1 )][log e H 1 /H 2 ]where:
Permeability (m/sec)Permeability (m/day)
where:
Permeability K (m/s) Equation (where T0 can be determined from the graph) K = Pr c 2 /T 0 F
For this test, where the soil is flush with bottom in uniform soil, Eqn. 1 is applied
where:PiCasing inner radius (m)Time lag (sec)
ANALYSIS SHEET OF IN-SITU PERMEABILTY TEST DATAClientLocationProject Number Date of Test
Cork County Council/White Young GreenHaulbowlineIE718 (IE Consulting Reference)15/05/2012
BH30319510.16
Eq. 2: F = [2πL] / [log e (L/D) + sqrt(1+(L/D)2 ] Well point or hole extended in uniform soil
10.160.2310.16Alluvium
Height of casing (m above ground level)Test depth interval (m below ground level)Test material descriptionStatic water level (m below top of casing)
Borehole nameCasing internal diameter (mm)Casing depth (m below ground level)Depth of hole (m below ground level)
Falling head test during drillingBS5930:1999 and Hvorslev (1951)
3.756m btoc @ 14:43:00 (from logger data)0.62m btoc @ 14:48:40 (manual dip reading)
Eq. 3: F = [2πL] / [log e (2L/D) + sqrt(1+((2L)2 /D)]
Initial water level (m below top of casing)Permeability Test TypeAnalysis Method Reference
Eq. 1: F = 2.75D
Equation
Soil flush with bottom in uniform soil
Determination of T0 from GraphT 0 = (Pr c
2 )/(FK)Time lag T0 = time taken for 63% of recovery i.e. time at which Dh/Dh0 = 0.37
Determination of F (Shape Factor)
ApplicationMethod Applied for Permeability Calculation
Equation Application
K = Prc2/T0FK = [Prc2/F(t2-t1)][logeH1/H2]
Where T0 can be determined from graph
Haulbowline Island
Date and Time: 08/06/12 ; 09:52
BH304
Weather/Site conditions: Dry, windy, overcast
Tidal conditions/Time: Falling Tide (High tide 09:03, Low tide 15:39)
Static water level (m below top of casing): 14.95 @ 09:12
Initial water level (m below top of casing): 0.23 @ 09:52
Casing diameter (mm ID): 195
Height of casing (m above ground level): 0.64
Depth of casing (m below top of casing): 18.30 (BH v. silted up at bottom, difficult to get accurate measurement)
Depth of hole (m below top of casing): 18.30
Depth interval of material tested: 17.66 mbgl
Description of material in test interval: "Boulder Clay"
Depth of hole at end of test (m below top of casing): 18.30
Time (minutes)
Water level (m below top of casing) Other Notes/Observations
0.0 0.23 Started filling borehole @ 09:17; stopped filling @ 09:520.5 0.271.0 0.331.5 0.382.0 0.422.5 0.473.0 0.523.5 -4.0 0.594.5 -5.0 0.656.0 0.717 0.778 0.809 0.8
10 0.8112 0.8514 0.8916 0.9318 0.9520 1.00
25 27 1.0630 32 1.14
35 -41 1.2045 -
50 52 1.27
55 -
60 -
Borehole ID:
In-situ Permeability (Falling Head) Test during Drilling - Field DatasheetSite name:
Haulbowline - Falling Head Test during Drilling - BH304 - Boulder Clay - 17.66m
0.010
0.100
1.000
0.0 500.0 1000.0 1500.0 2000.0 2500.0
Elapsed Time (seconds)
Hea
d R
atio
h/h
0 (lo
g sc
ale)
Delta h/h0Time Lag (0.37)
Segment A Segment B
Where T0 cannot be determined from graph
Well point or hole extended at impervious boundary
Length L (m) = 0 F = 0.536 Eqn. 1Diameter D (m) = 0.195 F = #DIV/0! Eqn. 2
F = #DIV/0! Eqn. 3
P = rc =T0 = F = K = #DIV/0!K = #DIV/0!
P = 3.14rc = 0.0975t1 = 0t2 = 250H1 = 13.257H2 = 12.867F = 0.536K = 7.E-06
ApplicationMethod Applied for Permeability Calculation
Equation Application
K = Prc2/T0FK = [Prc2/F(t2-t1)][logeH1/H2]
Where T0 can be determined from graph
Soil flush with bottom in uniform soil
Determination of T0 from GraphT 0 = (Pr c
2 )/(FK)Time lag T0 = time taken for 63% of recovery i.e. time at which Dh/Dh0 = 0.37
Determination of F (Shape Factor)
Eq. 3: F = [2πL] / [log e (2L/D) + sqrt(1+((2L)2 /D)]
Initial water level (m below top of casing)Permeability Test TypeAnalysis Method Reference
Eq. 1: F = 2.75D
Equation
Falling head test during drillingBS5930:1999 and Hvorslev (1951)
13.487m btoc @ 09:17:42 (from logger data)0.23m btoc @ 09:52:04 (manual dip reading)
Test depth interval (m below ground level)Test material descriptionStatic water level (m below top of casing)
Borehole nameCasing internal diameter (mm)Casing depth (m below ground level)Depth of hole (m below ground level)
BH304 (Segment A)19517.66
Eq. 2: F = [2πL] / [log e (L/D) + sqrt(1+(L/D)2 ] Well point or hole extended in uniform soil
17.660.6417.66Boulder Clay
Height of casing (m above ground level)
Date of Test
Cork County Council/White Young GreenHaulbowlineIE718 (IE Consulting Reference)08/06/2012
ANALYSIS SHEET OF IN-SITU PERMEABILTY TEST DATAClientLocationProject Number
where:PiCasing inner radius (m)Time lag (sec)
where:
Permeability K (m/s) Equation (where T0 can be determined from the graph) K = Pr c 2 /T 0 F
For this test, where the soil is flush with bottom in uniform soil, Eqn. 1 is applied
Shape Factor
Head measured at Time 2 (m)
Permeability K (m/s) Equation (where T0 cannot be determined from the graph)
K = [Pr c 2 /F(t 2 -t 1 )][log e H 1 /H 2 ]where:
Permeability (m/sec)Permeability (m/day)
Tidal Conditions Low Tide 15:39; High Tide 09:03
Permeability (m/sec)
PiCasing inner radius (m)
Shape Factor
Time 1 after commencement of test (sec)Time 1 after commencement of test (sec)Head measured at Time 1 (m)
Where T0 cannot be determined from graph
Well point or hole extended at impervious boundary
Length L (m) = 0 F = 0.536 Eqn. 1Diameter D (m) = 0.195 F = #DIV/0! Eqn. 2
F = #DIV/0! Eqn. 3
P = rc =T0 = F = K = #DIV/0!K = #DIV/0!
P = 3.14rc = 0.0975t1 = 750t2 = 2750H1 = 12.605H2 = 12.238F = 0.536K = 8.E-07
Tidal Conditions Low Tide 15:39; High Tide 09:03
Permeability (m/sec)
PiCasing inner radius (m)
Shape Factor
Time 1 after commencement of test (sec)Time 1 after commencement of test (sec)Head measured at Time 1 (m)
Shape Factor
Head measured at Time 2 (m)
Permeability K (m/s) Equation (where T0 cannot be determined from the graph)
K = [Pr c 2 /F(t 2 -t 1 )][log e H 1 /H 2 ]where:
Permeability (m/sec)Permeability (m/day)
where:
Permeability K (m/s) Equation (where T0 can be determined from the graph) K = Pr c 2 /T 0 F
For this test, where the soil is flush with bottom in uniform soil, Eqn. 1 is applied
where:PiCasing inner radius (m)Time lag (sec)
ANALYSIS SHEET OF IN-SITU PERMEABILTY TEST DATAClientLocationProject Number Date of Test
Cork County Council/White Young GreenHaulbowlineIE718 (IE Consulting Reference)08/06/2012
BH304 (Segment B)19517.66
Eq. 2: F = [2πL] / [log e (L/D) + sqrt(1+(L/D)2 ] Well point or hole extended in uniform soil
17.660.6417.66Boulder Clay
Height of casing (m above ground level)Test depth interval (m below ground level)Test material descriptionStatic water level (m below top of casing)
Borehole nameCasing internal diameter (mm)Casing depth (m below ground level)Depth of hole (m below ground level)
Falling head test during drillingBS5930:1999 and Hvorslev (1951)
13.487m btoc @ 09:17:42 (from logger data)0.23m btoc @ 09:52:04 (manual dip reading)
Eq. 3: F = [2πL] / [log e (2L/D) + sqrt(1+((2L)2 /D)]
Initial water level (m below top of casing)Permeability Test TypeAnalysis Method Reference
Eq. 1: F = 2.75D
Equation
Soil flush with bottom in uniform soil
Determination of T0 from GraphT 0 = (Pr c
2 )/(FK)Time lag T0 = time taken for 63% of recovery i.e. time at which Dh/Dh0 = 0.37
Determination of F (Shape Factor)
ApplicationMethod Applied for Permeability Calculation
Equation Application
K = Prc2/T0FK = [Prc2/F(t2-t1)][logeH1/H2]
Where T0 can be determined from graph
Haulbowline Island
Date and Time: 31/05/2012 ; 13:40
BH305
Weather/Site conditions: Dry, clear, windy
Tidal conditions/Time: Rising tide (Low tide 08:28, High tide 14:18)
Static water level (m below top of casing): 9.1
Initial water level (m below top of casing): 0.31
Casing diameter (mm ID): 195
Height of casing (m above ground level): 0.18
Depth of casing (m below top of casing): 9.5
Depth of hole (m below top of casing): 10
Depth interval of material tested: 9.5 - 10.0
Description of material in test interval: Alluvium (silt)
Depth of hole at end of test (m below top of casing): 9.8
Time (minutes)
Water level (m below top of casing) Other Notes/Observations
0.0 0.31 Logger set at 9.5m below top of casing0.5 - Started filling @ 13:27; flow rate approximately 0.13l/s; 1.0 - Stopped filling @ 13:401.5 -2.0 0.612.5 0.693.0 0.7353.5 0.824.0 0.904.5 0.945 1.016 1.137 1.218 1.339 1.4110 1.4912 1.6314 1.7616 1.8618 -
20 22 2.1225 2.2030 2.3335 -40 2.4945 -
50 -
55 -
60 -
70 2.8080 2.89
90 2.94
100 2.99
Borehole ID:
In-situ Permeability (Falling Head) Test during Drilling - Field DatasheetSite name:
Haulbowline - Falling Head Test during Drilling - BH305 - Alluvium - 9.5m-10.0m
0.010
0.100
1.000
0.0 500.0 1000.0 1500.0 2000.0 2500.0 3000.0 3500.0 4000.0 4500.0 5000.0 5500.0 6000.0
Elapsed Time (seconds)
Hea
d R
atio
h/h
0 (lo
g sc
ale)
Delta h/h0Time Lag (0.37)
Segment A
Segment B
Where T0 cannot be determined from graph
Well point or hole extended at impervious boundary
Length L (m) = 0.5 F = 0.536 Eqn. 1Diameter D (m) = 0.195 F = 1.879 Eqn. 2
F = 1.548 Eqn. 3
P = rc =T0 = F = K = #DIV/0!K = #DIV/0!
P = 3.14rc = 0.0975t1 = 0t2 = 500H1 = 8.8091H2 = 7.767F = 1.879K = 4.E-06
Tidal Conditions Low Tide 08:28; High Tide 14:18
Permeability (m/sec)
PiCasing inner radius (m)
Shape Factor
Time 1 after commencement of test (sec)Time 1 after commencement of test (sec)Head measured at Time 1 (m)
Shape Factor
Head measured at Time 2 (m)
Permeability K (m/s) Equation (where T0 cannot be determined from the graph)
K = [Pr c 2 /F(t 2 -t 1 )][log e H 1 /H 2 ]where:
Permeability (m/sec)Permeability (m/day)
where:
Permeability K (m/s) Equation (where T0 can be determined from the graph) K = Pr c 2 /T 0 F
For this test, where open hole extends into uniform silt layer, Eqn. 2 is applied
where:PiCasing inner radius (m)Time lag (sec)
ANALYSIS SHEET OF IN-SITU PERMEABILTY TEST DATAClientLocationProject Number Date of Test
Cork County Council/White Young GreenHaulbowlineIE718 (IE Consulting Reference)31/05/2012
BH305 (Graph Segment A)1959.5
Eq. 2: F = [2πL] / [log e (L/D) + sqrt(1+(L/D)2 ] Well point or hole extended in uniform soil
100.189.5 - 10.0Alluvium (Silt)
Height of casing (m above ground level)Test depth interval (m below ground level)Test material descriptionStatic water level (m below top of casing)
Borehole nameCasing internal diameter (mm)Casing depth (m below ground level)Depth of hole (m below ground level)
Falling head test during drillingBS5930:1999 and Hvorslev (1951)
9.123m btoc @ 13:27:01 (from logger data)0.31m btoc @ 13:40:09 (manual dip reading)
Eq. 3: F = [2πL] / [log e (2L/D) + sqrt(1+((2L)2 /D)]
Initial water level (m below top of casing)Permeability Test TypeAnalysis Method Reference
Eq. 1: F = 2.75D
Equation
Soil flush with bottom in uniform soil
Determination of T0 from GraphT 0 = (Pr c
2 )/(FK)Time lag T0 = time taken for 63% of recovery i.e. time at which Dh/Dh0 = 0.37
Determination of F (Shape Factor)
ApplicationMethod Applied for Permeability Calculation
Equation Application
K = Prc2/T0FK = [Prc2/F(t2-t1)][logeH1/H2]
Where T0 can be determined from graph
Where T0 cannot be determined from graph
Well point or hole extended at impervious boundary
Length L (m) = 0.5 F = 0.536 Eqn. 1Diameter D (m) = 0.195 F = 1.879 Eqn. 2
F = 1.548 Eqn. 3
P = rc =T0 = F = K = #DIV/0!K = #DIV/0!
P = 3.14rc = 0.0975t1 = 1000t2 = 2500H1 = 7.215H2 = 6.576F = 1.879K = 1.E-06
ApplicationMethod Applied for Permeability Calculation
Equation Application
K = Prc2/T0FK = [Prc2/F(t2-t1)][logeH1/H2]
Where T0 can be determined from graph
Soil flush with bottom in uniform soil
Determination of T0 from GraphT 0 = (Pr c
2 )/(FK)Time lag T0 = time taken for 63% of recovery i.e. time at which Dh/Dh0 = 0.37
Determination of F (Shape Factor)
Eq. 3: F = [2πL] / [log e (2L/D) + sqrt(1+((2L)2 /D)]
Initial water level (m below top of casing)Permeability Test TypeAnalysis Method Reference
Eq. 1: F = 2.75D
Equation
Falling head test during drillingBS5930:1999 and Hvorslev (1951)
9.123m btoc @ 13:27:01 (from logger data)0.31m btoc @ 13:40:09 (from manual dip reading)
Test depth interval (m below ground level)Test material descriptionStatic water level (m below top of casing)
Borehole nameCasing internal diameter (mm)Casing depth (m below ground level)Depth of hole (m below ground level)
BH305 (Graph Segment B)1959.5
Eq. 2: F = [2πL] / [log e (L/D) + sqrt(1+(L/D)2 ] Well point or hole extended in uniform soil
100.189.5 - 10.0Alluvium (Silt)
Height of casing (m above ground level)
Date of Test
Cork County Council/White Young GreenHaulbowlineIE718 (IE Consulting Reference)31/05/2012
ANALYSIS SHEET OF IN-SITU PERMEABILTY TEST DATAClientLocationProject Number
where:PiCasing inner radius (m)Time lag (sec)
where:
Permeability K (m/s) Equation (where T0 can be determined from the graph) K = Pr c 2 /T 0 F
For this test, where open hole extends into uniform silt layer, Eqn. 2 is applied
Shape Factor
Head measured at Time 2 (m)
Permeability K (m/s) Equation (where T0 cannot be determined from the graph)
K = [Pr c 2 /F(t 2 -t 1 )][log e H 1 /H 2 ]where:
Permeability (m/sec)Permeability (m/day)
Tidal Conditions Low Tide 08:28; High Tide 14:18
Permeability (m/sec)
PiCasing inner radius (m)
Shape Factor
Time 1 after commencement of test (sec)Time 1 after commencement of test (sec)Head measured at Time 1 (m)
Haulbowline Island
Date and Time: 4/5/2012 ; 16:04
BH306A
Weather/Site conditions: Light misty rain at beginning of test and for 20mins into test
Tidal conditions/Time: Rising Tide and Falling (Low Tide 10:59; High Tide 16:51)
Static water level (m below top of casing): 1.97 @ 15:40
Initial water level (m below top of casing): 0.23 @ 16:04
Casing diameter (mm ID): 195
Height of casing (m above ground level): 0.65
Depth of casing (m below top of casing): 7.05
Depth of hole (m below top of casing): 7.05
Depth interval of material tested: 6.40 mbgl
Description of material in test interval: Slag/fill material
Depth of hole at end of test (m below top of casing): 7.04
Time (minutes)
Water level (m below top of casing) Other Notes/Observations
0.0 0.23 Started filling borehole @ 15:55; flow rate approx 0.5l/s;0.5 0.23 stopped filling @ 16:041.0 0.231.5 0.232.0 0.232.5 0.233.0 0.233.5 0.234.0 0.234.5 0.235 0.246 0.247 0.248 0.249 0.24
10 0.2512 0.2514 -16 -18 -20 -25 -30 -35 -40 -45 -
50 -
55 -
60 0.28 Logger removed from borehole
Borehole ID:
In-situ Permeability (Falling Head) Test during Drilling - Field DatasheetSite name:
Haulbowline - Falling Head Test during Drilling - BH306a - Slag/Fill - 6.4m
0.100
1.000
0.0 500.0 1000.0 1500.0 2000.0 2500.0 3000.0 3500.0
Elapsed Time (seconds)
Hea
d R
atio
h/h
0 (lo
g sc
ale)
Delta h/h0Time Lag (0.37)
Where T0 cannot be determined from graph
Well point or hole extended at impervious boundary
Length L (m) = 0 F = 0.53625 Eqn. 1Diameter D (m) = 0.195 F = #DIV/0! Eqn. 2
F = #DIV/0! Eqn. 3
P = rc =T0 = F = K = #DIV/0!K = #DIV/0!
P = 3.14rc = 0.0975t1 = 0t2 = 3797H1 = 1.738H2 = 1.671F = 0.53625K = 6.E-07
ApplicationMethod Applied for Permeability Calculation
Equation Application
K = Prc2/T0FK = [Prc2/F(t2-t1)][logeH1/H2]
Where T0 can be determined from graph
Soil flush with bottom in uniform soil
Determination of T0 from GraphT 0 = (Pr c
2 )/(FK)Time lag T0 = time taken for 63% of recovery i.e. time at which Dh/Dh0 = 0.37
Determination of F (Shape Factor)
Eq. 3: F = [2πL] / [log e (2L/D) + sqrt(1+((2L)2 /D)]
Initial water level (m below top of casing)Permeability Test TypeAnalysis Method Reference
Eq. 1: F = 2.75D
Equation
Falling head test during drillingBS5930:1999 and Hvorslev (1951)
1.968m btoc @ 15:45:00 (from logger data)0.23m btoc @ 16:03:43 (from manual dip
Test depth interval (m below ground level)Test material descriptionStatic water level (m below top of casing)
Borehole nameCasing internal diameter (mm)Casing depth (m below ground level)Depth of hole (m below ground level)
BH306A1956.4
Eq. 2: F = [2πL] / [log e (L/D) + sqrt(1+(L/D)2 ] Well point or hole extended in uniform soil
6.40.656.4Slag/fill
Height of casing (m above ground level)
Date of Test
Cork County Council/White Young GreenHaulbowlineIE718 (IE Consulting Reference)04/05/2012
ANALYSIS SHEET OF IN-SITU PERMEABILTY TEST DATAClientLocationProject Number
where:PiCasing inner radius (m)Time lag (sec)
where:
Permeability K (m/s) Equation (where T0 can be determined from the graph) K = Pr c 2 /T 0 F
For this test, where the soil is flush with bottom in uniform soil, Eqn. 1 is applied
Shape Factor
Head measured at Time 2 (m)
Permeability K (m/s) Equation (where T0 cannot be determined from the graph)
K = [Pr c 2 /F(t 2 -t 1 )][log e H 1 /H 2 ]where:
Permeability (m/sec)Permeability (m/day)
Tidal Conditions Low Tide 10:59; High Tide 16:51
Permeability (m/sec)
PiCasing inner radius (m)
Shape Factor
Time 1 after commencement of test (sec)Time 1 after commencement of test (sec)Head measured at Time 1 (m)
Haulbowline Island
Date and Time: 30/05/2012 ; 15:53
BH307
Weather/Site conditions: Dry
Tidal conditions/Time: Rising tide (Low tide 19:50, High tide 13:12)
Static water level (m below top of casing): 3.7 @ 15:28
Initial water level (m below top of casing): 0.16
Casing diameter (mm ID): 195
Height of casing (m above ground level): 0.18
Depth of casing (m below top of casing): 14.68
Depth of hole (m below top of casing): 15.18
Depth interval of material tested: 14.5-15mbgl
Description of material in test interval: Alluvium
Depth of hole at end of test (m below top of casing): 15
Time (minutes)
Water level (m below top of casing) Other Notes/Observations
0.0 0.16 Start fill @ 15:47, flow rate approx. 0.2l/s; Stop fill at 15:530.5 0.161.0 0.161.5 0.162.0 -2.5 0.163.0 0.163.5 0.164.0 0.164.5 0.165 0.166 0.167 -8 0.179 0.1710 0.1712 0.1814 0.1816 0.1818 0.1820 0.1925 -30 -35 0.2040 0.2145 0.21
50 0.215
55 0.215
60 0.22
Borehole ID:
In-situ Permeability (Falling Head) Test during Drilling - Field DatasheetSite name:
Haulbowline - Falling Head Test during Drilling - BH307 - Alluvium - 14.5m-15.0m
0.010
0.100
1.000
0.0 500.0 1000.0 1500.0 2000.0 2500.0 3000.0 3500.0 4000.0
Elapsed Time (seconds)
Hea
d R
atio
h/h
0 (lo
g sc
ale)
Delta h/h0Time Lag (0.37)
Where T0 cannot be determined from graph
Well point or hole extended at impervious boundary
Length L (m) = 0.5 F = 0.536 Eqn. 1Diameter D (m) = 0.195 F = 1.879 Eqn. 2
F = 1.548 Eqn. 3
P = rc =T0 = F = K = #DIV/0!K = #DIV/0!
P = 3.14rc = 0.0975t1 = 0t2 = 4232H1 = 3.442H2 = 3.317F = 1.879K = 1.E-07
ApplicationMethod Applied for Permeability Calculation
Equation Application
K = Prc2/T0FK = [Prc2/F(t2-t1)][logeH1/H2]
Where T0 can be determined from graph
Soil flush with bottom in uniform soil
Determination of T0 from GraphT 0 = (Pr c
2 )/(FK)Time lag T0 = time taken for 63% of recovery i.e. time at which Dh/Dh0 = 0.37
Determination of F (Shape Factor)
Eq. 3: F = [2πL] / [log e (2L/D) + sqrt(1+((2L)2 /D)]
Initial water level (m below top of casing)Permeability Test TypeAnalysis Method Reference
Eq. 1: F = 2.75D
Equation
Falling head test during drillingBS5930:1999 and Hvorslev (1951)
3.65m btoc @ 15:34 (manual dip reading)0.208 btoc @ 15:53:27 (from logger data)
Test depth interval (m below ground level)Test material descriptionStatic water level (m below top of casing)
Borehole nameCasing internal diameter (mm)Casing depth (m below ground level)Depth of hole (m below ground level)
BH30719514.5
Eq. 2: F = [2πL] / [log e (L/D) + sqrt(1+(L/D)2 ] Well point or hole extended in uniform soil
150.1814.5 - 15.0Alluvium (Silt)
Height of casing (m above ground level)
Date of Test
Cork County Council/White Young GreenHaulbowlineIE718 (IE Consulting Reference)30/05/2012
ANALYSIS SHEET OF IN-SITU PERMEABILTY TEST DATAClientLocationProject Number
where:PiCasing inner radius (m)Time lag (sec)
where:
Permeability K (m/s) Equation (where T0 can be determined from the graph) K = Pr c 2 /T 0 F
For this test, where open hole extends into uniform silt layer, Eqn. 2 is applied
Shape Factor
Head measured at Time 2 (m)
Permeability K (m/s) Equation (where T0 cannot be determined from the graph)
K = [Pr c 2 /F(t 2 -t 1 )][log e H 1 /H 2 ]where:
Permeability (m/sec)Permeability (m/day)
Tidal Conditions Low Tide 19:50; High Tide 13:12
Permeability (m/sec)
PiCasing inner radius (m)
Shape Factor
Time 1 after commencement of test (sec)Time 1 after commencement of test (sec)Head measured at Time 1 (m)
Haulbowline Island
Date and Time: 28/05/2012 ; 16:32
BH307
Weather/Site conditions: Dry, windy
Tidal conditions/Time: Falling tide (Low tide 17:41, High tide 11:07)
Static water level (m below top of casing): 3.77 @ 16:27 and 16:30
Initial water level (m below top of casing): 3.595
Casing diameter (mm ID): 195
Height of casing (m above ground level): 0.3
Depth of casing (m below top of casing): 5.3
Depth of hole (m below top of casing): 5.3
Depth interval of material tested: 5mbgl
Description of material in test interval: Disturbed Slag
Depth of hole at end of test (m below top of casing): 5 (drilled to 7m but collapsed to 5m)
Time (minutes)
Water level (m below top of casing) Other Notes/Observations
0.0 3.595 Start fill @ 16:32, flow rate approx. 0.2l/s0.5 3.74 Water levels during fill as follows:1.0 3.74 3.65 @ 16:351.5 3.74 3.62 @ 16:362.0 3.74 3.55 @ 16:372.5 3.74 3.59 @ 16:38: water level falling, stop fill @ 16:383.0 3.743.5 -4.0 -4.5 -5 3.746 -7 3.748
9
10
12
14
16
18
20
25
30
35
40
45
50
55
60
Borehole ID:
In-situ Permeability (Falling Head) Test during Drilling - Field DatasheetSite name:
Haulbowline - Falling Head Test during Drilling - BH307 - Disturbed Slag - 5m
0.010
0.100
1.000
0.0 5.0 10.0 15.0
Elapsed Time (seconds)
Hea
d R
atio
h/h
0 (lo
g sc
ale)
Delta h/h0Time Lag (0.37)
T0 = 7.5 d
Where T0 cannot be determined from graph
Well point or hole extended at impervious boundary
Length L (m) = 0 F = 0.536 Eqn. 1Diameter D (m) = 0.195 F = #DIV/0! Eqn. 2
F = #DIV/0! Eqn. 3
P = 3.14rc = 0.0975T0 = 7.5F = 0.536K = 7.4E-03K = 641
P = rc =t1 = t2 = H1 = H2 = F = #DIV/0!K = #DIV/0!
Tidal Conditions Low Tide 17:41; High Tide 11:07
Permeability (m/sec)
PiCasing inner radius (m)
Shape Factor
Time 1 after commencement of test (sec)Time 1 after commencement of test (sec)Head measured at Time 1 (m)
Shape Factor
Head measured at Time 2 (m)
Permeability K (m/s) Equation (where T0 cannot be determined from the graph)
K = [Pr c 2 /F(t 2 -t 1 )][log e H 1 /H 2 ]where:
Permeability (m/sec)Permeability (m/day)
where:
Permeability K (m/s) Equation (where T0 can be determined from the graph) K = Pr c 2 /T 0 F
For this test, where the ground has collapsed to the base of the casing, Eqn. 1 is applied
where:PiCasing inner radius (m)Time lag (sec)
ANALYSIS SHEET OF IN-SITU PERMEABILTY TEST DATAClientLocationProject Number Date of Test
Cork County Council/White Young GreenHaulbowlineIE718 (IE Consulting Reference)28/05/2012
BH3071955
Eq. 2: F = [2πL] / [log e (L/D) + sqrt(1+(L/D)2 ] Well point or hole extended in uniform soil
5 (drilled to 7m but collapsed back to 5m)0.30Disturbed Slag
Height of casing (m above ground level)Test depth interval (m below ground level)Test material descriptionStatic water level (m below top of casing)
Borehole nameCasing internal diameter (mm)Casing depth (m below ground level)Depth of hole (m below ground level)
Falling head test during drillingBS5930:1999 and Hvorslev (1951)
3.77m btoc @ 16:30 (manual dip reading)3.629 btoc @ 16:38:54 (from logger data)
Eq. 3: F = [2πL] / [log e (2L/D) + sqrt(1+((2L)2 /D)]
Initial water level (m below top of casing)Permeability Test TypeAnalysis Method Reference
Eq. 1: F = 2.75D
Equation
Soil flush with bottom in uniform soil
Determination of T0 from GraphT 0 = (Pr c
2 )/(FK)Time lag T0 = time taken for 63% of recovery i.e. time at which Dh/Dh0 = 0.37
Determination of F (Shape Factor)
ApplicationMethod Applied for Permeability Calculation
Equation Application
K = Prc2/T0FK = [Prc2/F(t2-t1)][logeH1/H2]
Where T0 can be determined from graph
Haulbowline Island
Date and Time: 30/05/2012 ; 11:24
BH308
Weather/Site conditions: Dry, calm
Tidal conditions/Time: Rising tide (Low tide 07:22, High tide 13:12)
Static water level (m below top of casing): 5.6 @ 11:06
Initial water level (m below top of casing): 0.2
Casing diameter (mm ID): 195
Height of casing (m above ground level): 0.28
Depth of casing (m below top of casing): 17.78
Depth of hole (m below top of casing): 17.78
Depth interval of material tested: 17.5mbgl
Description of material in test interval: Sand and Gravel
Depth of hole at end of test (m below top of casing): 17.5
Time (minutes)
Water level (m below top of casing) Other Notes/Observations
0.0 0.20 Fill started @ 11:14; flow rate approximately 0.25l/s0.5 0.20 Filll stopped @ 11:241.0 0.201.5 0.202.0 0.212.5 0.213.0 0.2203.5 0.234.0 0.244.5 -5 0.246 0.247 0.258 0.259 0.2610 0.2612 0.2714 0.2816 0.2918 0.3020 0.3125 0.3230 0.3435 0.35540 0.36545 0.38
50 0.39
55 -
60 -
Borehole ID:
In-situ Permeability (Falling Head) Test during Drilling - Field DatasheetSite name:
Haulbowline - Falling Head Test during Drilling - BH308 - Sands and Gravels - 17.5m
0.010
0.100
1.000
0.0 500.0 1000.0 1500.0 2000.0 2500.0 3000.0 3500.0
Elapsed Time (seconds)
Hea
d R
atio
h/h
0 (lo
g sc
ale)
Delta h/h0Time Lag (0.37)
Where T0 cannot be determined from graph
Well point or hole extended at impervious boundary
Length L (m) = 0 F = 0.536 Eqn. 1Diameter D (m) = 0.195 F = #DIV/0! Eqn. 2
F = #DIV/0! Eqn. 3
P = rc =T0 = F = K = #DIV/0!K = #DIV/0!
P = 3.14rc = 0.0975t1 = 0t2 = 3653H1 = 5.405H2 = 5.1F = 0.536K = 9.E-07
ApplicationMethod Applied for Permeability Calculation
Equation Application
K = Prc2/T0FK = [Prc2/F(t2-t1)][logeH1/H2]
Where T0 can be determined from graph
Soil flush with bottom in uniform soil
Determination of T0 from GraphT 0 = (Pr c
2 )/(FK)Time lag T0 = time taken for 63% of recovery i.e. time at which Dh/Dh0 = 0.37
Determination of F (Shape Factor)
Eq. 3: F = [2πL] / [log e (2L/D) + sqrt(1+((2L)2 /D)]
Initial water level (m below top of casing)Permeability Test TypeAnalysis Method Reference
Eq. 1: F = 2.75D
Equation
Falling head test during drillingBS5930:1999 and Hvorslev (1951)
5.60m btoc @ 11:06 (manual dip reading)0.195 btoc @ 11:24:07 (from logger data)
Test depth interval (m below ground level)Test material descriptionStatic water level (m below top of casing)
Borehole nameCasing internal diameter (mm)Casing depth (m below ground level)Depth of hole (m below ground level)
BH308 (Graph Segment A)19517.5
Eq. 2: F = [2πL] / [log e (L/D) + sqrt(1+(L/D)2 ] Well point or hole extended in uniform soil
17.50.280Sands and Gravels
Height of casing (m above ground level)
Date of Test
Cork County Council/White Young GreenHaulbowlineIE718 (IE Consulting Reference)30/05/2012
ANALYSIS SHEET OF IN-SITU PERMEABILTY TEST DATAClientLocationProject Number
where:PiCasing inner radius (m)Time lag (sec)
where:
Permeability K (m/s) Equation (where T0 can be determined from the graph) K = Pr c 2 /T 0 F
For this test, where the subsoil is flush with bottom in uniform layer, Eqn. 1 is applied
Shape Factor
Head measured at Time 2 (m)
Permeability K (m/s) Equation (where T0 cannot be determined from the graph)
K = [Pr c 2 /F(t 2 -t 1 )][log e H 1 /H 2 ]where:
Permeability (m/sec)Permeability (m/day)
Tidal Conditions Low Tide 19:50; High Tide 13:12
Permeability (m/sec)
PiCasing inner radius (m)
Shape Factor
Time 1 after commencement of test (sec)Time 1 after commencement of test (sec)Head measured at Time 1 (m)
Haulbowline Island
Date and Time: 05/06/2012; 17:03
BH309
Weather/Site conditions: Light rain
Tidal conditions/Time: Falling tide (High tide 07:03, Low tide 13:24)
Static water level (m below top of casing): 2.73 @ 16:31
Initial water level (m below top of casing): 0.05 @ 17:03
Casing diameter (mm ID): 260
Height of casing (m above ground level): 0.72
Depth of casing (m below top of casing): 7.60
Depth of hole (m below top of casing): 7.60
Depth interval of material tested: 6.88 mbgl
Description of material in test interval: Slag/Fill
Depth of hole at end of test (m below top of casing): -
Time (minutes)
Water level (m below top of casing) Other Notes/Observations
0.0 0.05 Started filling borehole @ 16:34; flow rate approx 0.1 l/s;0.5 - stopped filling @ 16:41, ran out of water, start filling1.0 - again @ 16:59, stopped filling @ 17:031.5 -2.0 -2.5 0.113.0 -3.5 0.124.0 -4.5 -5 -6 -7 -8 -9 -
10 -12
14 -16 -
18 19 0.1420 -25
30
35
40
45
50
55
60
Borehole ID:
In-situ Permeability (Falling Head) Test during Drilling - Field DatasheetSite name:
Haulbowline - Falling Head Test 1 during Drilling - BH309 - Slag/Fill - 6.88m
0.100
1.000
0.0 500.0 1000.0
Elapsed Time (seconds)
Hea
d R
atio
h/h
0 (lo
g sc
ale)
Delta h/h0Time Lag (0.37)
Where T0 cannot be determined from graph
Well point or hole extended at impervious boundary
Length L (m) = 0 F = 0.715 Eqn. 1Diameter D (m) = 0.26 F = #DIV/0! Eqn. 2
F = #DIV/0! Eqn. 3
P = rc =T0 = F = K = #DIV/0!K = #DIV/0!
P = 3.14rc = 0.13t1 = 0t2 = 1111H1 = 1.411H2 = 1.378F = 0.715K = 2.E-06
ApplicationMethod Applied for Permeability Calculation
Equation Application
K = Prc2/T0FK = [Prc2/F(t2-t1)][logeH1/H2]
Where T0 can be determined from graph
Soil flush with bottom in uniform soil
Determination of T0 from GraphT 0 = (Pr c
2 )/(FK)Time lag T0 = time taken for 63% of recovery i.e. time at which Dh/Dh0 = 0.37
Determination of F (Shape Factor)
Eq. 3: F = [2πL] / [log e (2L/D) + sqrt(1+((2L)2 /D)]
Initial water level (m below top of casing)Permeability Test TypeAnalysis Method Reference
Eq. 1: F = 2.75D
Equation
Falling head test during drillingBS5930:1999 and Hvorslev (1951)
2.665m btoc @ 16:31:30 (from logger data)1.254m btoc @ 16:41:07 (manual reading)
Test depth interval (m below ground level)Test material descriptionStatic water level (m below top of casing)
Borehole nameCasing internal diameter (mm)Casing depth (m below ground level)Depth of hole (m below ground level)
BH309 (Test 1)2606.88
Eq. 2: F = [2πL] / [log e (L/D) + sqrt(1+(L/D)2 ] Well point or hole extended in uniform soil
6.880.726.88Slag/Fill
Height of casing (m above ground level)
Date of Test
Cork County Council/White Young GreenHaulbowlineIE718 (IE Consulting Reference)05/06/2012
ANALYSIS SHEET OF IN-SITU PERMEABILTY TEST DATAClientLocationProject Number
where:PiCasing inner radius (m)Time lag (sec)
where:
Permeability K (m/s) Equation (where T0 can be determined from the graph) K = Pr c 2 /T 0 F
For this test, where the soil is flush with bottom in uniform soil, Eqn. 1 is applied
Shape Factor
Head measured at Time 2 (m)
Permeability K (m/s) Equation (where T0 cannot be determined from the graph)
K = [Pr c 2 /F(t 2 -t 1 )][log e H 1 /H 2 ]where:
Permeability (m/sec)Permeability (m/day)
Tidal Conditions Low Tide 13:24; High Tide 07:03
Permeability (m/sec)
PiCasing inner radius (m)
Shape Factor
Time 1 after commencement of test (sec)Time 1 after commencement of test (sec)Head measured at Time 1 (m)
Haulbowline - Falling Head Test 2 during Drilling - BH309 - Slag/Fill - 6.88m
0.100
1.000
0.0 500.0 1000.0
Elapsed Time (seconds)
Hea
d R
atio
h/h
0 (lo
g sc
ale)
Delta h/h0Time Lag (0.37)
Where T0 cannot be determined from graph
Well point or hole extended at impervious boundary
Length L (m) = 0 F = 0.715 Eqn. 1Diameter D (m) = 0.26 F = #DIV/0! Eqn. 2
F = #DIV/0! Eqn. 3
P = rc =T0 = F = K = #DIV/0!K = #DIV/0!
P = 3.14rc = 0.13t1 = 0t2 = 17383H1 = 2.615H2 = 2.128F = 0.715K = 9.E-07
Tidal Conditions Low Tide 13:24; High Tide 07:03
Permeability (m/sec)
PiCasing inner radius (m)
Shape Factor
Time 1 after commencement of test (sec)Time 1 after commencement of test (sec)Head measured at Time 1 (m)
Shape Factor
Head measured at Time 2 (m)
Permeability K (m/s) Equation (where T0 cannot be determined from the graph)
K = [Pr c 2 /F(t 2 -t 1 )][log e H 1 /H 2 ]where:
Permeability (m/sec)Permeability (m/day)
where:
Permeability K (m/s) Equation (where T0 can be determined from the graph) K = Pr c 2 /T 0 F
For this test, where the soil is flush with bottom in uniform soil, Eqn. 1 is applied
where:PiCasing inner radius (m)Time lag (sec)
ANALYSIS SHEET OF IN-SITU PERMEABILTY TEST DATAClientLocationProject Number Date of Test
Cork County Council/White Young GreenHaulbowlineIE718 (IE Consulting Reference)05/06/2012
BH309 (Test 2)2606.88
Eq. 2: F = [2πL] / [log e (L/D) + sqrt(1+(L/D)2 ] Well point or hole extended in uniform soil
6.880.726.88Slag/Fill
Height of casing (m above ground level)Test depth interval (m below ground level)Test material descriptionStatic water level (m below top of casing)
Borehole nameCasing internal diameter (mm)Casing depth (m below ground level)Depth of hole (m below ground level)
Falling head test during drillingBS5930:1999 and Hvorslev (1951)
2.665m btoc @ 16:31:30 (from logger data)0.05m btoc @ 17:03:36 (manual reading)
Eq. 3: F = [2πL] / [log e (2L/D) + sqrt(1+((2L)2 /D)]
Initial water level (m below top of casing)Permeability Test TypeAnalysis Method Reference
Eq. 1: F = 2.75D
Equation
Soil flush with bottom in uniform soil
Determination of T0 from GraphT 0 = (Pr c
2 )/(FK)Time lag T0 = time taken for 63% of recovery i.e. time at which Dh/Dh0 = 0.37
Determination of F (Shape Factor)
ApplicationMethod Applied for Permeability Calculation
Equation Application
K = Prc2/T0FK = [Prc2/F(t2-t1)][logeH1/H2]
Where T0 can be determined from graph
Haulbowline Island
Date and Time: 11/05/12; 10:40
BH310b
Weather/Site conditions: Dry, overcast
Tidal conditions/Time: Falling tide ( High tide 10:07; Low tide 16:44)
Static water level (m below top of casing): 12.30 (silty water at bottom of borehole) @ 10:20
Initial water level (m below top of casing): 0.90 @ 10:40
Casing diameter (mm ID): 195
Height of casing (m above ground level): 0.60
Depth of casing (m below top of casing): 12.50
Depth of hole (m below top of casing): 12.80
Depth interval of material tested (m below ground level): 11.9 - 12.2 mbgl
Description of material in test interval: Alluvium
Depth of hole at end of test (m below top of casing): 12.10
Time (minutes)
Water level (m below top of casing) Other Notes/Observations
0.0 0.90 Started filling borehole @ 10:27; flow rate approx 0.4 l/s;0.5 - stopped filling @ 10:401.0 -1.5 - Unable to get accurate water level readings for first
2.0 - 5 mins due to silty water affecting dipper
2.5 -3.0 -3.5 -4.0 -4.5 -5 1.726 -7 1.898 2.299 -
10 11 2.5212 -14 -
16 17 2.5618 -20 -25 -30 -
35 33 2.5840 41 2.61
45 -
50 2.64
55 -
60 2.65 Logger removed from borehole
Borehole ID:
In-situ Permeability (Falling Head) Test during Drilling - Field DatasheetSite name:
Haulbowline - Falling Head Test during Drilling - BH310b - Alluvium - 11.9m-12.2m
0.010
0.100
1.000
0.0 500.0 1000.0 1500.0 2000.0 2500.0 3000.0 3500.0
Elapsed Time (seconds)
Hea
d R
atio
h/h
0 (lo
g sc
ale)
Delta h/h0Time Lag (0.37)
Segment A Segment B
Where T0 cannot be determined from graph
Well point or hole extended at impervious boundary
Length L (m) = 0.3 F = 0.536 Eqn. 1Diameter D (m) = 0.195 F = 1.549 Eqn. 2
F = 1.207 Eqn. 3
P = rc =T0 = F = K = #DIV/0!K = #DIV/0!
P = 3.14rc = 0.0975t1 = 0t2 = 500H1 = 11.019H2 = 9.936F = 1.549K = 4.E-06
ApplicationMethod Applied for Permeability Calculation
Equation Application
K = Prc2/T0FK = [Prc2/F(t2-t1)][logeH1/H2]
Where T0 can be determined from graph
Soil flush with bottom in uniform soil
Determination of T0 from GraphT 0 = (Pr c
2 )/(FK)Time lag T0 = time taken for 63% of recovery i.e. time at which Dh/Dh0 = 0.37
Determination of F (Shape Factor)
Eq. 3: F = [2πL] / [log e (2L/D) + sqrt(1+((2L)2 /D)]
Initial water level (m below top of casing)Permeability Test TypeAnalysis Method Reference
Eq. 1: F = 2.75D
Equation
Falling head test during drillingBS5930:1999 and Hvorslev (1951)
11.919m btoc @ 10:28 (from logger data)0.9 btoc @ 10:39:42 (from manual dip measurement)
Test depth interval (m below ground level)Test material descriptionStatic water level (m below top of casing)
Borehole nameCasing internal diameter (mm)Casing depth (m below ground level)Depth of hole (m below ground level)
BH310b (Segment A)19511.9
Eq. 2: F = [2πL] / [log e (L/D) + sqrt(1+(L/D)2 ] Well point or hole extended in uniform soil
12.20.611.9 - 12.2Alluvium (Silt)
Height of casing (m above ground level)
Date of Test
Cork County Council/White Young GreenHaulbowlineIE718 (IE Consulting Reference)11/05/2012
ANALYSIS SHEET OF IN-SITU PERMEABILTY TEST DATAClientLocationProject Number
where:PiCasing inner radius (m)Time lag (sec)
where:
Permeability K (m/s) Equation (where T0 can be determined from the graph) K = Pr c 2 /T 0 F
For this test, where open hole extends into uniform layer, Eqn. 2 is applied
Shape Factor
Head measured at Time 2 (m)
Permeability K (m/s) Equation (where T0 cannot be determined from the graph)
K = [Pr c 2 /F(t 2 -t 1 )][log e H 1 /H 2 ]where:
Permeability (m/sec)Permeability (m/day)
Tidal Conditions Low Tide 15:44; High Tide 10:07
Permeability (m/sec)
PiCasing inner radius (m)
Shape Factor
Time 1 after commencement of test (sec)Time 1 after commencement of test (sec)Head measured at Time 1 (m)
Where T0 cannot be determined from graph
Well point or hole extended at impervious boundary
Length L (m) = 0.3 F = 0.536 Eqn. 1Diameter D (m) = 0.195 F = 1.549 Eqn. 2
F = 1.207 Eqn. 3
P = rc =T0 = F = K = #DIV/0!K = #DIV/0!
P = 3.14rc = 0.0975t1 = 1250t2 = 3500H1 = 9.399H2 = 9.273F = 1.549K = 1.E-07
Tidal Conditions Low Tide 15:44; High Tide 10:07
Permeability (m/sec)
PiCasing inner radius (m)
Shape Factor
Time 1 after commencement of test (sec)Time 1 after commencement of test (sec)Head measured at Time 1 (m)
Shape Factor
Head measured at Time 2 (m)
Permeability K (m/s) Equation (where T0 cannot be determined from the graph)
K = [Pr c 2 /F(t 2 -t 1 )][log e H 1 /H 2 ]where:
Permeability (m/sec)Permeability (m/day)
where:
Permeability K (m/s) Equation (where T0 can be determined from the graph) K = Pr c 2 /T 0 F
For this test, where open hole extends into uniform layer, Eqn. 2 is applied
where:PiCasing inner radius (m)Time lag (sec)
ANALYSIS SHEET OF IN-SITU PERMEABILTY TEST DATAClientLocationProject Number Date of Test
Cork County Council/White Young GreenHaulbowlineIE718 (IE Consulting Reference)11/05/2012
BH310b (Segment B)19511.9
Eq. 2: F = [2πL] / [log e (L/D) + sqrt(1+(L/D)2 ] Well point or hole extended in uniform soil
12.20.611.9 - 12.2Alluvium (Silt)
Height of casing (m above ground level)Test depth interval (m below ground level)Test material descriptionStatic water level (m below top of casing)
Borehole nameCasing internal diameter (mm)Casing depth (m below ground level)Depth of hole (m below ground level)
Falling head test during drillingBS5930:1999 and Hvorslev (1951)
11.919m btoc @ 10:28 (from logger data)0.9 btoc @ 10:39:42 (from manual dip measurement)
Eq. 3: F = [2πL] / [log e (2L/D) + sqrt(1+((2L)2 /D)]
Initial water level (m below top of casing)Permeability Test TypeAnalysis Method Reference
Eq. 1: F = 2.75D
Equation
Soil flush with bottom in uniform soil
Determination of T0 from GraphT 0 = (Pr c
2 )/(FK)Time lag T0 = time taken for 63% of recovery i.e. time at which Dh/Dh0 = 0.37
Determination of F (Shape Factor)
ApplicationMethod Applied for Permeability Calculation
Equation Application
K = Prc2/T0FK = [Prc2/F(t2-t1)][logeH1/H2]
Where T0 can be determined from graph
Haulbowline Island
Date and Time: 15/05/12 ; 10:52
310b
Weather/Site conditions: Dry, overcast
Tidal conditions/Time: Rising Tide (Low tide 8:27, High tide 14:21)
Static water level (m below top of casing): 6.41
Initial water level (m below top of casing): 0.80
Casing diameter (mm ID): 195
Height of casing (m above ground level): 0.36
Depth of casing (m below top of casing): 24.10
Depth of hole (m below top of casing): 24.30
Depth interval of material tested: 23.74 - 23.94 mbgl
Description of material in test interval: Sand and Gravel
Depth of hole at end of test (m below top of casing): 24.00
Time (minutes)
Water level (m below top of casing) Other Notes/Observations
0 110 1.55 Continued0.5 116 1.591 118 1.59
1.5 121 1.60 Logger taken out of borehole
Borehole ID:
In-situ Permeability (Falling Head) Test during Drilling - Field DatasheetSite name:
Haulbowline - Falling Head Test during Drilling - BH310b - Sand and Gravel - 23.74-23.94m
0.010
0.100
1.000
0.0 500.0 1000.0 1500.0 2000.0 2500.0 3000.0 3500.0 4000.0 4500.0 5000.0 5500.0 6000.0 6500.0 7000.0
Elapsed Time (seconds)
Hea
d R
atio
h/h
0 (lo
g sc
ale)
Delta h/h0Time Lag (0.37)
Where T0 cannot be determined from graph
Well point or hole extended at impervious boundary
Length L (m) = 0.2 F = 0.536 Eqn. 1Diameter D (m) = 0.195 F = 1.397 Eqn. 2
F = 1.026 Eqn. 3
P = rc =T0 = F = K = #DIV/0!K = #DIV/0!
P = 3.14rc = 0.0975t1 = 0t2 = 7433H1 = 5.638H2 = 4.789F = 1.397K = 5.E-07
ApplicationMethod Applied for Permeability Calculation
Equation Application
K = Prc2/T0FK = [Prc2/F(t2-t1)][logeH1/H2]
Where T0 can be determined from graph
Soil flush with bottom in uniform soil
Determination of T0 from GraphT 0 = (Pr c
2 )/(FK)Time lag T0 = time taken for 63% of recovery i.e. time at which Dh/Dh0 = 0.37
Determination of F (Shape Factor)
Eq. 3: F = [2πL] / [log e (2L/D) + sqrt(1+((2L)2 /D)]
Initial water level (m below top of casing)Permeability Test TypeAnalysis Method Reference
Eq. 1: F = 2.75D
Equation
Falling head test during drillingBS5930:1999 and Hvorslev (1951)
6.428m btoc @ 10:29:00 (from logger data)0.8m btoc @ 10:52:07(manual dip reading)
Test depth interval (m below ground level)Test material descriptionStatic water level (m below top of casing)
Borehole nameCasing internal diameter (mm)Casing depth (m below ground level)Depth of hole (m below ground level)
BH310b19523.74
Eq. 2: F = [2πL] / [log e (L/D) + sqrt(1+(L/D)2 ] Well point or hole extended in uniform soil
23.940.3623.74 - 23.94Sand and Gravel
Height of casing (m above ground level)
Date of Test
Cork County Council/White Young GreenHaulbowlineIE718 (IE Consulting Reference)15/05/2012
ANALYSIS SHEET OF IN-SITU PERMEABILTY TEST DATAClientLocationProject Number
where:PiCasing inner radius (m)Time lag (sec)
where:
Permeability K (m/s) Equation (where T0 can be determined from the graph) K = Pr c 2 /T 0 F
For this test, where open hole extends into uniform layer, Eqn. 2 is applied
Shape Factor
Head measured at Time 2 (m)
Permeability K (m/s) Equation (where T0 cannot be determined from the graph)
K = [Pr c 2 /F(t 2 -t 1 )][log e H 1 /H 2 ]where:
Permeability (m/sec)Permeability (m/day)
Tidal Conditions Low Tide 08:27; High Tide 14:21
Permeability (m/sec)
PiCasing inner radius (m)
Shape Factor
Time 1 after commencement of test (sec)Time 1 after commencement of test (sec)Head measured at Time 1 (m)
Haulbowline Island
Date and Time: 25/05/12 ; 13:28
BH311
Weather/Site conditions: Dry, sunny & warm
Tidal conditions/Time: Falling Tide (High tide 08:45 ; Low tide 15:12)
Static water level (m below top of casing): 3.73 @ 13:06
Initial water level (m below top of casing): 0.22 @ 13:28
Casing diameter (mm ID): 195
Height of casing (m above ground level): 0.68
Depth of casing (m below top of casing): 5.44
Depth of hole (m below top of casing): 5.44
Depth interval of material tested: 4.76 mbgl
Description of material in test interval: Slag/Fill
Depth of hole at end of test (m below top of casing): 5.35
Time (minutes)
Water level (m below top of casing) Other Notes/Observations
0.0 0.22 Started filling borehole @ 13:20; flow rate approx 0.2 l/s;0.5 0.23 stopped filling @ 13:281.0 0.241.5 0.242.0 0.242.5 -3.0 0.253.5 -4.0 0.264.5 -5 0.266 0.277 0.288 -9 0.29
10 0.3012 0.3214 0.3316 0.3518 0.3620 0.38
25 24 0.4130 29 0.4335 34 0.4640 38 0.5045 44 0.53
50 51 0.56
55 -
60 66 0.65 Logger taken out of borehole
Borehole ID:
In-situ Permeability (Falling Head) Test during Drilling - Field DatasheetSite name:
Haulbowline - Falling Head Test during Drilling - BH311 - Slag/Fill - 4.76m
0.010
0.100
1.000
0.0 500.0 1000.0 1500.0 2000.0 2500.0 3000.0 3500.0 4000.0
Elapsed Time (seconds)
Hea
d R
atio
h/h
0 (lo
g sc
ale)
Delta h/h0Time Lag (0.37)
Where T0 cannot be determined from graph
Well point or hole extended at impervious boundary
Length L (m) = 0 F = 0.536 Eqn. 1Diameter D (m) = 0.195 F = #DIV/0! Eqn. 2
F = #DIV/0! Eqn. 3
P = rc =T0 = F = K = #DIV/0!K = #DIV/0!
P = 3.14rc = 0.0975t1 = 0t2 = 4059H1 = 3.513H2 = 3.056F = 0.536K = 2.E-06
ApplicationMethod Applied for Permeability Calculation
Equation Application
K = Prc2/T0FK = [Prc2/F(t2-t1)][logeH1/H2]
Where T0 can be determined from graph
Soil flush with bottom in uniform soil
Determination of T0 from GraphT 0 = (Pr c
2 )/(FK)Time lag T0 = time taken for 63% of recovery i.e. time at which Dh/Dh0 = 0.37
Determination of F (Shape Factor)
Eq. 3: F = [2πL] / [log e (2L/D) + sqrt(1+((2L)2 /D)]
Initial water level (m below top of casing)Permeability Test TypeAnalysis Method Reference
Eq. 1: F = 2.75D
Equation
Falling head test during drillingBS5930:1999 and Hvorslev (1951)
3.73m btoc @ 13:06 (from manual dip reading)0.217 btoc @ 13:27:21 (from logger data)
Test depth interval (m below ground level)Test material descriptionStatic water level (m below top of casing)
Borehole nameCasing internal diameter (mm)Casing depth (m below ground level)Depth of hole (m below ground level)
BH3111954.76
Eq. 2: F = [2πL] / [log e (L/D) + sqrt(1+(L/D)2 ] Well point or hole extended in uniform soil
4.760.684.76Slag/Fill
Height of casing (m above ground level)
Date of Test
Cork County Council/White Young GreenHaulbowlineIE718 (IE Consulting Reference)25/05/2012
ANALYSIS SHEET OF IN-SITU PERMEABILTY TEST DATAClientLocationProject Number
where:PiCasing inner radius (m)Time lag (sec)
where:
Permeability K (m/s) Equation (where T0 can be determined from the graph) K = Pr c 2 /T 0 F
For this test, where the soil is flush with bottom in uniform soil, Eqn. 1 is applied
Shape Factor
Head measured at Time 2 (m)
Permeability K (m/s) Equation (where T0 cannot be determined from the graph)
K = [Pr c 2 /F(t 2 -t 1 )][log e H 1 /H 2 ]where:
Permeability (m/sec)Permeability (m/day)
Tidal Conditions Low Tide 15:12; High Tide 08:45
Permeability (m/sec)
PiCasing inner radius (m)
Shape Factor
Time 1 after commencement of test (sec)Time 1 after commencement of test (sec)Head measured at Time 1 (m)
Haulbowline
Date and Time: 4/5/12 ; 14:25
BH312b
Weather/Site conditions: Dry, Overcast
Tidal conditions/Time: Rising Tide, (Low tide 10:59, High tide 16:51)
Static water level (m below top of casing): 3.43 @ 13:12
Initial water level (m below top of casing): 0.72 @ 14:25
Casing diameter (mm ID): 195
Height of casing (m above ground level): 0.75
Depth of casing (m below top of casing): 19.65
Depth of hole (m below top of casing): 19.85
Depth interval of material tested: 18.9 - 19.1 mbgl
Description of material in test interval: Sands/ Gravels
Depth of hole at end of test (m below top of casing): 19.85
Time (minutes)
Water level (m below top of casing) Other Notes/Observations
0.0 0.72 Started filling borehole @ 13:20; flow rate approx 0.5 l/s;0.5 0.95 Stopped filling @ 13:24 due to lack of water, aborted test.1.0 1.36 Started Filling again @ 14:08 and stopped filling again1.5 1.62 @14:25 2.0 1.832.5 2.023.0 2.193.5 2.314.0 2.414.5 2.525 2.716 2.777 2.918 3.019 3.12
10 3.1412 3.2114 3.2216 3.2218 3.220 3.1925 3.1330 -35 - Logger Removed From Borehole40 -45 -
50 -
55 -
60 -
Borehole ID:
In-situ Permeability (Falling Head) Test during Drilling - Field DatasheetSite name:
Haulbowline - Falling Head Test 1 during Drilling - BH312b - Sand and Gravel - 18.9m-19.1m
0.010
0.100
1.000
0.0 50.0 100.0 150.0 200.0 250.0 300.0 350.0 400.0 450.0 500.0 550.0
Elapsed Time (seconds)
Hea
d R
atio
h/h
0 (lo
g sc
ale)
Delta h/h0Time Lag (0.37)
T0 = 208.75 seconds
Where T0 cannot be determined from graph
Well point or hole extended at impervious boundary
Length L (m) = 0.2 F = 0.536 Eqn. 1Diameter D (m) = 0.195 F = 1.397 Eqn. 2
F = 1.026 Eqn. 3
P = 3.14rc = 0.0975T0 = 208.75F = 1.40K = 1.0E-04K = 8.8
P = rc =t1 = t2 = H1 = H2 = F = K = #DIV/0!
Tidal Conditions Low Tide 10:59; High Tide 16:51
Permeability (m/sec)
PiCasing inner radius (m)
Shape Factor
Time 1 after commencement of test (sec)Time 1 after commencement of test (sec)Head measured at Time 1 (m)
Shape Factor
Head measured at Time 2 (m)
Permeability K (m/s) Equation (where T0 cannot be determined from the graph)
K = [Pr c 2 /F(t 2 -t 1 )][log e H 1 /H 2 ]where:
Permeability (m/sec)Permeability (m/day)
where:
Permeability K (m/s) Equation (where T0 can be determined from the graph) K = Pr c 2 /T 0 F
For this test, where open hole extends into uniform layer, Eqn. 2 is applied
where:PiCasing inner radius (m)Time lag (sec)
ANALYSIS SHEET OF IN-SITU PERMEABILTY TEST DATAClientLocationProject Number Date of Test
Cork County Council/White Young GreenHaulbowlineIE718 (IE Consulting Reference)04/05/2012
BH312b (Test 1)19518.9
Eq. 2: F = [2πL] / [log e (L/D) + sqrt(1+(L/D)2 ] Well point or hole extended in uniform soil
19.10.7518.9 - 19.1Sand and Gravel
Height of casing (m above ground level)Test depth interval (m below ground level)Test material descriptionStatic water level (m below top of casing)
Borehole nameCasing internal diameter (mm)Casing depth (m below ground level)Depth of hole (m below ground level)
Falling head test during drillingBS5930:1999 and Hvorslev (1951)
4.442 m btoc @ 13:15:00 (from logger data)0.72 m btoc @ 14:24:55 (from manual dip reading)
Eq. 3: F = [2πL] / [log e (2L/D) + sqrt(1+((2L)2 /D)]
Initial water level (m below top of casing)Permeability Test TypeAnalysis Method Reference
Eq. 1: F = 2.75D
Equation
Soil flush with bottom in uniform soil
Determination of T0 from GraphT 0 = (Pr c
2 )/(FK)Time lag T0 = time taken for 63% of recovery i.e. time at which Dh/Dh0 = 0.37
Determination of F (Shape Factor)
ApplicationMethod Applied for Permeability Calculation
Equation Application
K = Prc2/T0FK = [Prc2/F(t2-t1)][logeH1/H2]
Where T0 can be determined from graph
Haulbowline - Falling Head Test 2 during Drilling - BH312b - Sand and Gravel - 18.9m-19.1m
0.010
0.100
1.000
0.0 50.0 100.0 150.0 200.0 250.0 300.0 350.0 400.0 450.0 500.0 550.0 600.0 650.0 700.0 750.0 800.0
Elapsed Time (seconds)
Hea
d R
atio
h/h
0 (lo
g sc
ale)
Delta h/h0Time Lag (0.37)
T0 = 208.75 seconds
Where T0 cannot be determined from graph
Well point or hole extended at impervious boundary
Length L (m) = 0.2 F = 0.536 Eqn. 1Diameter D (m) = 0.195 F = 1.397 Eqn. 2
F = 1.026 Eqn. 3
P = 3.14rc = 0.0975T0 = 370.5F = 1.40K = 5.8E-05K = 5.0
P = rc =t1 = t2 = H1 = H2 = F = K = #DIV/0!
ApplicationMethod Applied for Permeability Calculation
Equation Application
K = Prc2/T0FK = [Prc2/F(t2-t1)][logeH1/H2]
Where T0 can be determined from graph
Soil flush with bottom in uniform soil
Determination of T0 from GraphT 0 = (Pr c
2 )/(FK)Time lag T0 = time taken for 63% of recovery i.e. time at which Dh/Dh0 = 0.37
Determination of F (Shape Factor)
Eq. 3: F = [2πL] / [log e (2L/D) + sqrt(1+((2L)2 /D)]
Initial water level (m below top of casing)Permeability Test TypeAnalysis Method Reference
Eq. 1: F = 2.75D
Equation
Falling head test during drillingBS5930:1999 and Hvorslev (1951)
4.442 m btoc @ 13:15:00 (from logger data)0.72 m btoc @ 14:24:55 (from manual dip reading)
Test depth interval (m below ground level)Test material descriptionStatic water level (m below top of casing)
Borehole nameCasing internal diameter (mm)Casing depth (m below ground level)Depth of hole (m below ground level)
BH312b (Test 2)19518.9
Eq. 2: F = [2πL] / [log e (L/D) + sqrt(1+(L/D)2 ] Well point or hole extended in uniform soil
19.10.7518.9 - 19.1Sand and Gravel
Height of casing (m above ground level)
Date of Test
Cork County Council/White Young GreenHaulbowlineIE718 (IE Consulting Reference)04/05/2012
ANALYSIS SHEET OF IN-SITU PERMEABILTY TEST DATAClientLocationProject Number
where:PiCasing inner radius (m)Time lag (sec)
where:
Permeability K (m/s) Equation (where T0 can be determined from the graph) K = Pr c 2 /T 0 F
For this test, where open hole extends into uniform layer, Eqn. 2 is applied
Shape Factor
Head measured at Time 2 (m)
Permeability K (m/s) Equation (where T0 cannot be determined from the graph)
K = [Pr c 2 /F(t 2 -t 1 )][log e H 1 /H 2 ]where:
Permeability (m/sec)Permeability (m/day)
Tidal Conditions Low Tide 10:59; High Tide 16:51
Permeability (m/sec)
PiCasing inner radius (m)
Shape Factor
Time 1 after commencement of test (sec)Time 1 after commencement of test (sec)Head measured at Time 1 (m)
Haulbowline Island
Date and Time: 17/05/12 ; 15:47
BH313
Weather/Site conditions: Dry, overcast
Tidal conditions/Time: Rising Tide (Low tide 10:21, High tide 16:12)
Static water level (m below top of casing): 3.40 @ 15:23
Initial water level (m below top of casing): 2.25 @ 15:47
Casing diameter (mm ID): 260
Height of casing (m above ground level): 0.30
Depth of casing (m below top of casing): 6.30
Depth of hole (m below top of casing): 6.42
Depth interval of material tested: 6.00 - 6.12 mbgl
Description of material in test interval: Slag/ Fill
Depth of hole at end of test (m below top of casing): -
Time (minutes)
Water level (m below top of casing) Other Notes/Observations
0.0 2.25 Started filling borehole @ 15:28; flow rate approx 0.1 l/s;0.5 - stopped filling @ 15:471.0 -1.5 - Difficult to affect increase in head in this borehole2.0 -2.5 - Difficult to get water level readings with dipper due to 3.0 - scum from slag on top of the water & rapid drop in 3.5 - water levels4.0 -4.5 - Refer to Logger Data5 -6 -7 -8 -9 -
10 -12 -14 -16 -18 -20 -25 -30 -35 -40 -45 -
50 -
55 -
60 -
Borehole ID:
In-situ Permeability (Falling Head) Test during Drilling - Field DatasheetSite name:
Haulbowline - Falling Head Test during Drilling - BH313 - Slag/Fill - 6.0m-6.12m
0.010
0.100
1.000
0.0 100.0 200.0 300.0 400.0 500.0 600.0 700.0
Elapsed Time (seconds)
Hea
d R
atio
h/h
0 (lo
g sc
ale)
Delta h/h0Time Lag (0.37)
Segment A Segment B
Where T0 cannot be determined from graph
Well point or hole extended at impervious boundary
Length L (m) = 0.12 F = 0.715 Eqn. 1Diameter D (m) = 0.26 F = 1.688 Eqn. 2
F = 1.066 Eqn. 3
P = rc =T0 = F = K = #DIV/0!K = #DIV/0!
P = 3.14rc = 0.13t1 = 11.5t2 = 33.5H1 = 0.59H2 = 0.471F = 1.688K = 3.E-04
ApplicationMethod Applied for Permeability Calculation
Equation Application
K = Prc2/T0FK = [Prc2/F(t2-t1)][logeH1/H2]
Where T0 can be determined from graph
Soil flush with bottom in uniform soil
Determination of T0 from GraphT 0 = (Pr c
2 )/(FK)Time lag T0 = time taken for 63% of recovery i.e. time at which Dh/Dh0 = 0.37
Determination of F (Shape Factor)
Eq. 3: F = [2πL] / [log e (2L/D) + sqrt(1+((2L)2 /D)]
Initial water level (m below top of casing)Permeability Test TypeAnalysis Method Reference
Eq. 1: F = 2.75D
Equation
Falling head test during drillingBS5930:1999 and Hvorslev (1951)
3.40m btoc @ 15:27:22 (manual dip reading)2.774 btoc @ 15:47:34 (from logger data)
Test depth interval (m below ground level)Test material descriptionStatic water level (m below top of casing)
Borehole nameCasing internal diameter (mm)Casing depth (m below ground level)Depth of hole (m below ground level)
BH313 (Graph Segment A)2606
Eq. 2: F = [2πL] / [log e (L/D) + sqrt(1+(L/D)2 ] Well point or hole extended in uniform soil
6.120.36.0 - 6.12Slag/Fill
Height of casing (m above ground level)
Date of Test
Cork County Council/White Young GreenHaulbowlineIE718 (IE Consulting Reference)17/05/2012
ANALYSIS SHEET OF IN-SITU PERMEABILTY TEST DATAClientLocationProject Number
where:PiCasing inner radius (m)Time lag (sec)
where:
Permeability K (m/s) Equation (where T0 can be determined from the graph) K = Pr c 2 /T 0 F
For this test, where open hole extends into slag/fill layer, Eqn. 2 is applied
Shape Factor
Head measured at Time 2 (m)
Permeability K (m/s) Equation (where T0 cannot be determined from the graph)
K = [Pr c 2 /F(t 2 -t 1 )][log e H 1 /H 2 ]where:
Permeability (m/sec)Permeability (m/day)
Tidal Conditions Low Tide 10:21; High Tide 16:12
Permeability (m/sec)
PiCasing inner radius (m)
Shape Factor
Time 1 after commencement of test (sec)Time 1 after commencement of test (sec)Head measured at Time 1 (m)
Where T0 cannot be determined from graph
Well point or hole extended at impervious boundary
Length L (m) = 0.12 F = 0.715 Eqn. 1Diameter D (m) = 0.26 F = 1.688 Eqn. 2
F = 1.066 Eqn. 3
P = rc =T0 = F = K = #DIV/0!K = #DIV/0!
P = 3.14rc = 0.13t1 = 100t2 = 200H1 = 0.404H2 = 0.383F = 1.688K = 2.E-05
Tidal Conditions Low Tide 10:21; High Tide 16:12
Permeability (m/sec)
PiCasing inner radius (m)
Shape Factor
Time 1 after commencement of test (sec)Time 1 after commencement of test (sec)Head measured at Time 1 (m)
Shape Factor
Head measured at Time 2 (m)
Permeability K (m/s) Equation (where T0 cannot be determined from the graph)
K = [Pr c 2 /F(t 2 -t 1 )][log e H 1 /H 2 ]where:
Permeability (m/sec)Permeability (m/day)
where:
Permeability K (m/s) Equation (where T0 can be determined from the graph) K = Pr c 2 /T 0 F
For this test, where open hole extends into slag/fill layer, Eqn. 2 is applied
where:PiCasing inner radius (m)Time lag (sec)
ANALYSIS SHEET OF IN-SITU PERMEABILTY TEST DATAClientLocationProject Number Date of Test
Cork County Council/White Young GreenHaulbowlineIE718 (IE Consulting Reference)17/05/2012
BH313 (Graph Segment B)2606
Eq. 2: F = [2πL] / [log e (L/D) + sqrt(1+(L/D)2 ] Well point or hole extended in uniform soil
6.120.36.0 - 6.12Slag/Fill
Height of casing (m above ground level)Test depth interval (m below ground level)Test material descriptionStatic water level (m below top of casing)
Borehole nameCasing internal diameter (mm)Casing depth (m below ground level)Depth of hole (m below ground level)
Falling head test during drillingBS5930:1999 and Hvorslev (1951)
3.40m btoc @ 15:27:22 (manual dip reading)2.774 btoc @ 15:47:34 (from logger data)
Eq. 3: F = [2πL] / [log e (2L/D) + sqrt(1+((2L)2 /D)]
Initial water level (m below top of casing)Permeability Test TypeAnalysis Method Reference
Eq. 1: F = 2.75D
Equation
Soil flush with bottom in uniform soil
Determination of T0 from GraphT 0 = (Pr c
2 )/(FK)Time lag T0 = time taken for 63% of recovery i.e. time at which Dh/Dh0 = 0.37
Determination of F (Shape Factor)
ApplicationMethod Applied for Permeability Calculation
Equation Application
K = Prc2/T0FK = [Prc2/F(t2-t1)][logeH1/H2]
Where T0 can be determined from graph
Haulbowline Island
Date and Time: 22/05/12 ;12:22
BH315
Weather/Site conditions: Dry, overcast
Tidal conditions/Time: Falling tide (High tide 07:03, Low tide 13:24)
Static water level (m below top of casing): 4.37 @ 12:05
Initial water level (m below top of casing): 0.20 @ 12:22
Casing diameter (mm ID): 260
Height of casing (m above ground level): 0.70
Depth of casing (m below top of casing): 6.00
Depth of hole (m below top of casing): 6.00
Depth interval of material tested: 5.30 mbgl
Description of material in test interval: Slag/Fill
Depth of hole at end of test (m below top of casing): 5.97
Time (minutes)
Water level (m below top of casing) Other Notes/Observations
0.0 0.20 Started filling borehole @ 12:13; flow rate approx 0.1 l/s;0.5 0.20 stopped filling @ 12:221.0 0.201.5 -2.0 0.202.5 -3.0 0.203.5 -4.0 0.204.5 -5 0.206 0.217 0.218 0.229 0.22
10 0.2212 0.2214 0.2216 0.2318 0.23
20 23 0.2325 0.2430 0.2535 -40 -45 -
50 -
55 -
60 64 0.27 Logger removed from borehole
Borehole ID:
In-situ Permeability (Falling Head) Test during Drilling - Field DatasheetSite name:
Haulbowline - Falling Head Test during Drilling - BH315 - Slag/Fill - 5.3m
0.010
0.100
1.000
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