Central and Southern Scotland summary results - Revision history

Ajhil at 11:46, 21 October 2026

2026-10-21T11:46:26Z

← Older revision		Revision as of 11:46, 21 October 2026
Line 7:		Line 7:

	<center>'''Geology of central and southern Scotland'''</center>		<center>'''Geology of central and southern Scotland'''</center>


	The Clackmannan Group and Coal Measures Group form multi-layered and vertically segmented aquifers, in which fine-grained, well-cemented sandstone layers act as discrete aquifer units in which groundwater flow is predominantly through fractures, and which are separated by lower permeability siltstones, mudstones or coals. Groundwater may be present at various depths under unconfined or confined conditions, and different groundwater heads are seen in different aquifer layers. The thickness of the Carboniferous sedimentary aquifers varies from less than 500 m in southern Scotland to 3000 m in central Scotland.		The Clackmannan Group and Coal Measures Group form multi-layered and vertically segmented aquifers, in which fine-grained, well-cemented sandstone layers act as discrete aquifer units in which groundwater flow is predominantly through fractures, and which are separated by lower permeability siltstones, mudstones or coals. Groundwater may be present at various depths under unconfined or confined conditions, and different groundwater heads are seen in different aquifer layers. The thickness of the Carboniferous sedimentary aquifers varies from less than 500 m in southern Scotland to 3000 m in central Scotland.

Ajhil: /* Methane in UK groundwater results */

2026-06-10T09:21:17Z

Methane in UK groundwater results

← Older revision		Revision as of 09:21, 10 June 2026
Line 31:		Line 31:
	\| ! scope="col" style="width: 100px;" style="background-color: #042e3f;" \| <span style="color:#ffffff">'''Maximum'''		\| ! scope="col" style="width: 100px;" style="background-color: #042e3f;" \| <span style="color:#ffffff">'''Maximum'''
	\|-		\|-
	\| ! scope="col" style="width: ~~225px~~;" \| '''Central and southern Scotland'''		\| ! scope="col" style="width: 275px;" \| '''Central and southern Scotland'''
	\| ! scope="col" style="width: 100px;" \| '''<0.0001'''		\| ! scope="col" style="width: 100px;" \| '''<0.0001'''
	\| ! scope="col" style="width: 100px;" \| '''0.0036'''		\| ! scope="col" style="width: 100px;" \| '''0.0036'''

Ajhil: /* Methane in UK groundwater results */

2026-06-10T09:19:53Z

Methane in UK groundwater results

← Older revision		Revision as of 09:19, 10 June 2026
Line 31:		Line 31:
	\| ! scope="col" style="width: 100px;" style="background-color: #042e3f;" \| <span style="color:#ffffff">'''Maximum'''		\| ! scope="col" style="width: 100px;" style="background-color: #042e3f;" \| <span style="color:#ffffff">'''Maximum'''
	\|-		\|-
	\| ! scope="col" style="width: ~~200px~~;" \| '''Central and southern Scotland'''		\| ! scope="col" style="width: 225px;" \| '''Central and southern Scotland'''
	\| ! scope="col" style="width: 100px;" \| '''<0.0001'''		\| ! scope="col" style="width: 100px;" \| '''<0.0001'''
	\| ! scope="col" style="width: 100px;" \| '''0.0036'''		\| ! scope="col" style="width: 100px;" \| '''0.0036'''

Ajhil: /* Baseline groundwater quality data */

2026-06-05T11:21:53Z

Baseline groundwater quality data

← Older revision		Revision as of 11:21, 5 June 2026
Line 53:		Line 53:

	{\|class="wikitable" style="background-color:#F0F8FF; margin:auto;"		{\|class="wikitable" style="background-color:#F0F8FF; margin:auto;"
	\| '''Analysis'''		\| rowspan="2" scope="col" style="width: 100px;" style="background-color: #042e3f;" \| <span style="color:#ffffff">'''Analysis'''</span>
	\| colspan="3" \| '''Concentration (mg/l)'''		\| colspan="3" scope="col" style="width: 50px; background-color: #042e3f;" \| <span style="color:#ffffff"><center>'''Concentration (mg/l)'''</center>
	\| '''Number of ~~samples~~'''		\| rowspan="2" scope="col" style="width: 100px;" style="background-color: #042e3f;" \| <span style="color:#ffffff">'''Number of Samples'''</span>
	\|-		\|-
	\|		\| ! scope="col" style="width: 100px;" style="background-color: #042e3f;" \| <span style="color:#ffffff">'''Minimum'''
	\| Minimum		\| ! scope="col" style="width: 50px; background-color: #042e3f;" \| <span style="color:#ffffff">'''Median'''
	\| Median		\| ! scope="col" style="width: 100px;" style="background-color: #042e3f;" \| <span style="color:#ffffff">'''Maximum'''
	\| Maximum
	\|
	\|-		\|-
	\|Ca		\| ! scope="col" style="width: 200px;" \| Ca
	\|7.26		\| ! scope="col" style="width: 100px;" \| 7.26
	\|54.5		\| ! scope="col" style="width: 100px;" \| 54.5
	\|290		\| ! scope="col" style="width: 100px;" \| 290
	\|21		\| ! scope="col" style="width: 100px;" \| 21
	\|-		\|-
	\|Mg		\|Mg

Ajhil: /* Baseline groundwater quality data */

2026-06-05T11:20:03Z

Baseline groundwater quality data

← Older revision		Revision as of 11:20, 5 June 2026
Line 50:		Line 50:
	A summary of the baseline quality of groundwater in this area is below. This data was collected as part of a collaborative project between BGS and the [https://www.sepa.org.uk/ Scottish Environment Protection Agency] to investigate the [[Baseline Scotland: groundwater chemistry data \| baseline quality of groundwater in major Scottish aquifers]].		A summary of the baseline quality of groundwater in this area is below. This data was collected as part of a collaborative project between BGS and the [https://www.sepa.org.uk/ Scottish Environment Protection Agency] to investigate the [[Baseline Scotland: groundwater chemistry data \| baseline quality of groundwater in major Scottish aquifers]].

	Groundwater from the Clackmannan and Coal Measures Groups in this area is typically reducing and contains a high proportion of old water, recharged more than 35–60 years ago. Mining activity in this area has had a major impact on groundwater quality. More detail on groundwater quality for [~~https://www2.bgs.ac.uk/groundwater/quality/baselineScotland/MidlandValleyData.html/~~ central Scotland] and [~~https://www2.bgs.ac.uk/groundwater/quality/baselineScotland/southernScotlandData.html/~~ southern Scotland] is available via the [~~https~~:~~//www2.bgs.ac.uk/~~groundwater~~/quality/baselineScotland/home.html/~~ Baseline Scotland] web pages.		Groundwater from the Clackmannan and Coal Measures Groups in this area is typically reducing and contains a high proportion of old water, recharged more than 35–60 years ago. Mining activity in this area has had a major impact on groundwater quality. More detail on groundwater quality for [[Midland Valley \| central Scotland]] and [[Southern Scotland \| southern Scotland]] is available via the [[Baseline Scotland: groundwater chemistry data \| Baseline Scotland]] web pages.

	{\|class="wikitable" style="background-color:#F0F8FF; margin:auto;"		{\|class="wikitable" style="background-color:#F0F8FF; margin:auto;"

Ajhil: /* Baseline groundwater quality data */

2026-06-05T11:17:03Z

Baseline groundwater quality data

← Older revision		Revision as of 11:17, 5 June 2026
Line 48:		Line 48:

	===Baseline groundwater quality data===		===Baseline groundwater quality data===
	A summary of the baseline quality of groundwater in this area is below. This data was collected as part of a collaborative project between BGS and the [https://www.sepa.org.uk/ Scottish Environment Protection Agency] to investigate the [~~https~~:~~//www2.bgs.ac.uk/~~groundwater~~/quality/baselineScotland/home.html/~~ baseline quality of groundwater in major Scottish aquifers].		A summary of the baseline quality of groundwater in this area is below. This data was collected as part of a collaborative project between BGS and the [https://www.sepa.org.uk/ Scottish Environment Protection Agency] to investigate the [[Baseline Scotland: groundwater chemistry data \| baseline quality of groundwater in major Scottish aquifers]].

	Groundwater from the Clackmannan and Coal Measures Groups in this area is typically reducing and contains a high proportion of old water, recharged more than 35–60 years ago. Mining activity in this area has had a major impact on groundwater quality. More detail on groundwater quality for [https://www2.bgs.ac.uk/groundwater/quality/baselineScotland/MidlandValleyData.html/ central Scotland] and [https://www2.bgs.ac.uk/groundwater/quality/baselineScotland/southernScotlandData.html/ southern Scotland] is available via the [https://www2.bgs.ac.uk/groundwater/quality/baselineScotland/home.html/ Baseline Scotland] web pages.		Groundwater from the Clackmannan and Coal Measures Groups in this area is typically reducing and contains a high proportion of old water, recharged more than 35–60 years ago. Mining activity in this area has had a major impact on groundwater quality. More detail on groundwater quality for [https://www2.bgs.ac.uk/groundwater/quality/baselineScotland/MidlandValleyData.html/ central Scotland] and [https://www2.bgs.ac.uk/groundwater/quality/baselineScotland/southernScotlandData.html/ southern Scotland] is available via the [https://www2.bgs.ac.uk/groundwater/quality/baselineScotland/home.html/ Baseline Scotland] web pages.

Ajhil: /* Methane in UK groundwater results */

2026-06-05T11:15:01Z

Methane in UK groundwater results

← Older revision		Revision as of 11:15, 5 June 2026
Line 44:		Line 44:
	\|}		\|}

	~~<small>~~<center>Methane samples and concentrations in central and southern Scotland<br>		<center>'''Methane samples and concentrations in central and southern Scotland'''</center>
	Note: values less than the analytical detection limit have been converted to half the detection limit for<br>the purposes of this statistical summary and graph, but the relevant detection limit is quoted in the table above.</~~small~~></~~center~~>		<small><center>Note: values less than the analytical detection limit have been converted to half the detection limit for<br>the purposes of this statistical summary and graph, but the relevant detection limit is quoted in the table above.</center></small>

	===Baseline groundwater quality data===		===Baseline groundwater quality data===

Ajhil: /* Methane in UK groundwater results */

2026-06-05T11:13:07Z

Methane in UK groundwater results

← Older revision		Revision as of 11:13, 5 June 2026
Line 23:		Line 23:

	{\|class="wikitable" style="background-color:#F0F8FF; margin:auto;"		{\|class="wikitable" style="background-color:#F0F8FF; margin:auto;"
	\| '''Area'''		\| rowspan="2" scope="col" style="width: 100px;" style="background-color: #042e3f;" \| <span style="color:#ffffff">'''Area'''</span>
	\| colspan="3" \| '''Concentration (mg/l)'''		\| colspan="3" scope="col" style="width: 50px; background-color: #042e3f;" \| <span style="color:#ffffff"><center>'''Concentration (mg/l)'''</center>
	\|\| '''Number of ~~samples~~'''		\| rowspan="2" scope="col" style="width: 100px;" style="background-color: #042e3f;" \| <span style="color:#ffffff">'''Number of Samples'''</span>
	\|-		\|-
	\|		\| ! scope="col" style="width: 100px;" style="background-color: #042e3f;" \| <span style="color:#ffffff">'''Minimum'''
	\| Minimum		\| ! scope="col" style="width: 50px; background-color: #042e3f;" \| <span style="color:#ffffff">'''Median'''
	\| Median		\| ! scope="col" style="width: 100px;" style="background-color: #042e3f;" \| <span style="color:#ffffff">'''Maximum'''
	\| Maximum
	\|
	\|-		\|-
	\|Central and southern Scotland		\| ! scope="col" style="width: 200px;" \| '''Central and southern Scotland'''
	\|<0.0001		\| ! scope="col" style="width: 100px;" \| '''<0.0001'''
	\|0.0036		\| ! scope="col" style="width: 100px;" \| '''0.0036'''
	\|1.68		\| ! scope="col" style="width: 100px;" \| '''1.68'''
	\|31		\| ! scope="col" style="width: 100px;" \| '''31'''
	\|-		\|-
	\|Clackmannan and Coal Measures Groups		\|''Clackmannan and Coal Measures Groups''
	\|<0.0005		\|<0.0005
	\|0.00835		\|0.00835

Ajhil: /* Methane in UK groundwater results */

2026-06-05T11:11:26Z

Methane in UK groundwater results

← Older revision		Revision as of 11:11, 5 June 2026
Line 18:		Line 18:
	<div><ul>		<div><ul>
	<li style="display: inline-block;"> [[File:CentralSouthScotlandTopography_RB_v2.jpg\|frameless\|left\|470px]]</li>		<li style="display: inline-block;"> [[File:CentralSouthScotlandTopography_RB_v2.jpg\|frameless\|left\|470px]]</li>
	<li style="display: inline-block;"> [[File:CentralSouthScotlandBarChart.jpg\|frameless\|right\|~~460px~~]]</li>		<li style="display: inline-block;"> [[File:CentralSouthScotlandBarChart.jpg\|frameless\|right\|440px]]</li>
	</ul></div>		</ul></div>
	</center>		</center>

Ajhil: /* Methane in UK groundwater results */

2026-06-05T11:11:18Z

Methane in UK groundwater results

← Older revision		Revision as of 11:11, 5 June 2026
Line 18:		Line 18:
	<div><ul>		<div><ul>
	<li style="display: inline-block;"> [[File:CentralSouthScotlandTopography_RB_v2.jpg\|frameless\|left\|470px]]</li>		<li style="display: inline-block;"> [[File:CentralSouthScotlandTopography_RB_v2.jpg\|frameless\|left\|470px]]</li>
	<li style="display: inline-block;"> [[File:CentralSouthScotlandBarChart.jpg\|frameless\|right\|~~480px~~]]</li>		<li style="display: inline-block;"> [[File:CentralSouthScotlandBarChart.jpg\|frameless\|right\|460px]]</li>
	</ul></div>		</ul></div>
	</center>		</center>

← Older revision		Revision as of 09:21, 10 June 2026
Line 31:		Line 31:
	\| ! scope="col" style="width: 100px;" style="background-color: #042e3f;" \| <span style="color:#ffffff">'''Maximum'''		\| ! scope="col" style="width: 100px;" style="background-color: #042e3f;" \| <span style="color:#ffffff">'''Maximum'''
	\|-		\|-
	\| ! scope="col" style="width: ~~225px~~;" \| '''Central and southern Scotland'''		\| ! scope="col" style="width: 275px;" \| '''Central and southern Scotland'''
	\| ! scope="col" style="width: 100px;" \| '''<0.0001'''		\| ! scope="col" style="width: 100px;" \| '''<0.0001'''
	\| ! scope="col" style="width: 100px;" \| '''0.0036'''		\| ! scope="col" style="width: 100px;" \| '''0.0036'''

← Older revision		Revision as of 09:19, 10 June 2026
Line 31:		Line 31:
	\| ! scope="col" style="width: 100px;" style="background-color: #042e3f;" \| <span style="color:#ffffff">'''Maximum'''		\| ! scope="col" style="width: 100px;" style="background-color: #042e3f;" \| <span style="color:#ffffff">'''Maximum'''
	\|-		\|-
	\| ! scope="col" style="width: ~~200px~~;" \| '''Central and southern Scotland'''		\| ! scope="col" style="width: 225px;" \| '''Central and southern Scotland'''
	\| ! scope="col" style="width: 100px;" \| '''<0.0001'''		\| ! scope="col" style="width: 100px;" \| '''<0.0001'''
	\| ! scope="col" style="width: 100px;" \| '''0.0036'''		\| ! scope="col" style="width: 100px;" \| '''0.0036'''