Glyn Rhonwy Pumped Storage

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Glyn Rhonwy Pumped Storage

Received 23 December 2015
From Neale Lewis-Jones


My major concerns are regarding the potential for the contamination of Llyn Padarn through the disturbance of the waters contained in the quarries, previously utilised for the storage of chemical and conventional weapons and referred to in the survey document entitled 'Glyn Rhonwy Pumped Storage Development Consent Order Appendix 8.5 Zetica (2015) UXO Desk Study Report'.
There is massive potential for contamination of the water through natural seepage. The report highlights the following and quotes recently released documents from the Ministry of Defence documentation.

I quote from same:.......

1) 'it was temporarily used as a storage facility for 14,000 tons of bombs filled with Tabun, a toxic nerve gas which had been seized from German ammunitions dumps..'

2) 'Records indicate that this disposal was not always successful..."

3) 'Disposal activities at RAF Llanberis are considered to provide a source of UXO hazard within the quarry pits on the site'

4) The details of pit locations are marked incorrectly on the photographs giving extreme concern should we agree with the location of ammunition on site at the present time

5) 'It should be noted that the RAF was unwilling to certify the quarries completely free of explosives despite rendering safe each disposal area.

6) In 2015 'During recent Site walkovers, the Client has encountered potential items of UXO........ These discoveries indicate that, despite the extensive EOD operation, not all items of ordnance within the quarry pits were accounted for’.

Biggest concern....'the decomposition products of these materials, especially Mercury and Lead can be highly toxic’.

These are just a few of many major concerns that if not addressed, surveyed, risk assessed and indeed monitored may have a catastrophic affect on the lives and health of residents, workers and indeed the wildlife and water contained in LLyn Padarn.

How can the developers possibly ensure that the site and its contents will not :

1) Explode

2) Permit contaminated water potentially containing Mercury (fatal if swallowed bearing in mind the amount of swimmers using the lake) and Lead, from naturally making its way through underground faults once it is disturbed.

I cannot find any reference in the documentation as to how the developers plan to deal with UXO should it be encountered.

Have the developers budgeted for the cost of the disposal of any UXO, surely the cost would be prohibitive?

With the potential for such eventualities, surely the process should be considered at the highest level, given the extraordinary site circumstances involving the storage of chemical and conventional weapons.
Surely, the document I have referred to gives rise to many, many questions that need thorough investigation to ensure public safety and environmental sustainability.

Submitted for consideration: