In the interest of promoting an informed debate on unconventional gas exploration and development in Somerset here are some local resources, including new maps which are based entirely on open information from the UK Government. Hopefully these resources will help to inform the local political discourse in the lead up to the election.
Briefing Notes & Reports
- Integrale’s Unconventional Gas Technical Briefing Notes
- Timsbury Environment Group’s Briefing Note on CBM Wells in NE Somerset
- Timsbury Environment Group’s Jacob Rees-Mogg Carbon and Climate Change Meeting Summary
- FFCV’s Annotated GeoMet Report on CBM Gas Exploration in Somerset – see detailed maps below
- GFFM’s Candidates Mendip Awareness Tour
The first map shows all of BANES and the area identified as prospective by US coalbed methane specialists GeoMet Inc. Note that their assessment of coalbed methane resources didn’t cover all of BANES and information is missing to the south of the City of Bath. As a World Heritage Site the City of Bath is now off-limits to gas exploration. Areas of Outstanding Natural Beauty are also off-limits, although drilling underneath them from outside may not be. The Mendip AONB is shown on the map. Fracking has also been excluded from groundwater protection zones, although the government hasn’t yet decided which ones. The maps shows protection zones 1 and 2 which relate to areas where surface pollution could enter aquifers within 50 days and 400 days respectively. Lastly the map illustrates a hypothetical grid of gas wells within the prospective area, according to GeoMet’s specification of one well every 32 ha or 566m, which matches the government’s Planning Practice Guidance on CBM Well Spacing. GeoMet propose drilling at depths between 152m and 1524m which also pretty much matches the government’s Planning Practice Guidance on CBM Drilling Depth. When questioned about the minimum drilling depth the current licence holder, UK Methane, obfuscated. The Infrastructure Act 2015 doesn’t seem to cover CBM so the 1,000m trespass threshold in the Act doesn’t apply – the coal seams can already be accessed by virtue of the Coal Industry Act 1994. Currently only PELD 227 is extant and is held by UK Methane and Eden Energy. The rest of BANES is up for grabs again by the gas companies in the 14th on-shore Licensing Round. DECC will not tell us where companies have expressed an interest in despite a Freedom of Information request and appeal.
Click on the map to open a detailed A3 PDF file. The next map shows the detail of PEDL-227 held by UK Methane. This map includes the CBM prospective area, as identified by GeoMet Inc, the groundwater protection zones, the grid of hypothetical wells and entrances of old mine workings. Note the avoidance of mine workings by GeoMet.
Click on the map to open a detailed A3 PDF file. The last map also shows PEDL-227 and the CBM prospective area but this time in relation to the surface water catchments which include a portion of the Chew Valley, the Cam Brook Valley, the Somer and Well Brook Valley and the Mells Brook Valley.
Click on the map to open a detailed A3 PDF file.