News
Refinery tight lipped following burn-off concerns
VALERO has refused to explain why their flare stacks at the Pembroke Oil Refinery were worryingly large on Friday night (Nov 16).
The Pembrokeshire Herald received several messages and photographs of the unprecedented burn-off from readers and concerned locals via social media and email.
An unconfirmed source at the refinery told this newspaper that there had been a problem with the alkylation de-isobutanizer – it ‘fell over’ our source said.
Alkylation is the process of producing gasoline range material such as propylene and butylene with isobutene – in the presence of a highly acidic catalyst, either sulphuric acid or hydrofluoric acid.
When asked to confirm the emergency burn off took place, and when asked if there was a serious malfunction, Stephen Thornton, Public Affairs Manager told us: “It is company policy not to comment on operations.”
When asked if he could deny that the incident occurred he again declined to comment.
A refinery expert told us: “The towers which have a constant burning flame is called a flare stack. In very simple terms, it is just like the burner of a gas stove with a controlled burning of natural gas through its pilot burners. It is the last line of safety or defence for refineries, petrochemical and gas processing plants.”
The expert went on: “The flare system consists of the flare stack and a flare header. A very large network of pipes coming from the different processes feed into the header. Whenever there is an upset or an emergency situation, all the extremely flammable hydrocarbons need to be vented out.
“But these cannot be just put in the atmosphere like the steam from our food pressure cookers. A vapour cloud would be extremely hazardous and catastrophic. To ensure that these escaping gases get burned to Carbon dioxide and water vapour, a flame is always kept burning on the top.
“Refinery operators generally see this as a necessary evil.
“The location of a fire stack is also very important. It is located far away from the main processing complex in the downwind direction.”
In April this newspaper reported that a potentially ‘catastrophic incident’ took place at Valero’s Pembroke Oil Refinery last year involving leaking gas and an ignition source
As previously reported, we were contacted earlier this year by a number of workers at the site who told us that it is only ’pure luck’ which prevented leaking gases from being blown into an ignition source, believed to be a furnace, which could have led to another lethal incident at the plant.
Valero have confirmed that they are working with statutory authorities who are investigating the event, which occurred on November 30 last year. It involved the Alkylate Iso-Stripper, which creates Alkylate – a premium component of petrol that has exceptional anti-knock properties and is clean burning.
The oil refinery’s management told us at the time that it is working with ‘continued co-operation’ with regulators, and highlighted in a statement that ‘no personnel were injured’ and that ‘there was no impact on the community’.
Valero, which says it is one of the leading employers in south Wales, added that they are unable to comment further during the period of investigation.
A Health & Safety Executive spokesperson told The Herald in a prepared statement: “We are aware of an incident at the Valero Energy Limited Pembroke Refinery in November 2017 which was reported to the Health and Safety Executive under RIDDOR (Reporting of Injuries, Diseases and Dangerous Occurrences Regulations 2013).
“We can confirm that the incident took place on the Alkylate Iso-Stripper, and is being investigated.
“No enforcement action has been taken, though the investigation remains on-going.”
Business
Plaid energy policy challenged by Labour after Adam Price interview
LABOUR SAYS MINISTERS MUST EXPLAIN COST AND TIMETABLE FOR PYLON PLANS
PLAID CYMRU’S approach to energy infrastructure has come under scrutiny after Energy Minister Adam Price was challenged over plans to reduce the use of overhead pylons in Wales.
Mr Price defended the Welsh Government’s position during an appearance on BBC Radio Wales’ Sunday Supplement, arguing that communities must have greater confidence in how major grid projects are handled.
Plaid Cymru has pledged to give communities a stronger voice over energy developments and to look more closely at alternatives to overhead transmission lines, including underground cabling where possible.
The issue has become increasingly sensitive in rural parts of Wales, where proposed pylon routes linked to renewable energy schemes have raised concerns about landscape impact, tourism and local consultation.
However, Welsh Labour said the minister had failed to explain when any restriction on pylons would take effect, or who would pay the additional cost of placing cables underground.
A Welsh Labour spokesperson said: “Adam Price keeps saying how clear their manifesto was and yet he won’t say when they’re banning pylons. They won’t say who is paying for the extra cost of undergrounding cables.
“Without certainty, companies won’t invest. That’s thousands of clean, green energy jobs at risk. Plaid need more than a plan to have a plan.”
Labour said the Welsh Government must now set out how its policy would work in practice, including whether it amounts to an outright ban, what exemptions would apply, and how any extra costs would be funded.
The debate highlights the challenge facing ministers as Wales seeks to expand renewable energy generation while addressing public opposition to large-scale grid infrastructure.
Community
Pembroke Fair praised as well-organised community event
HORSES, STALLS AND FAMILY CROWDS RETURN TO MONKTON
FAMILIES, horse owners and visitors turned out in force for Pembroke Fair on Saturday (May 23), with many praising the event as one of the best organised in recent years.
Held at the Community Centre Field in Monkton, the annual fair brought together horse owners, traders and local families for a traditional day centred around horses, ponies, stalls and socialising.
Coloured cobs, heavy horses, ponies and horse-drawn traps attracted attention throughout the day, with many visitors gathering around the field to watch the animals being shown and led around the site.



A variety of stalls selling everything from clothing and ornaments to tack and second-hand goods helped create a lively market atmosphere, while food vendors kept visitors fed throughout the day.
Despite overcast conditions at times, the event remained busy, with many attendees staying for several hours to enjoy the traditional fair atmosphere.
Community members later took to social media to praise the smooth running of the event, with several publicly thanking organiser Charlie Price for his efforts in bringing the fair together.
Comments described the day as “well organised” and praised the welcoming atmosphere, with many saying it was encouraging to see a long-standing local tradition continuing to thrive.
The fair once again brought together members of the travelling community, local residents and horse enthusiasts from across west Wales.






A horse drive was also due to take place on Sunday (May 24), continuing the weekend’s celebrations.
Photo captions:
Traditional gathering: Horses, ponies, horse-drawn carts and market stalls drew crowds to Pembroke Fair in Monkton on Saturday (Pic: Herald).
News
Watchdog criticises health board over £10m GP contract checks
A HEALTH board has been criticised by Audit Wales after GP contracts worth more than £10m were awarded without sufficient due diligence checks.
Aneurin Bevan University Health Board allowed a GP partnership associated with eHarley Street Primary Care Solutions to take on eight GP contracts in south-east Wales, with a combined annual value of around £10.1m.
Audit Wales said the board should have carried out greater scrutiny before approving the arrangements, including checks on financial resilience, workforce plans, business risks and the partnership’s ability to manage several practices at once.
However, the watchdog found no evidence of fraud and noted the board was dealing with significant pressure in general practice, including vacant contracts and limited interest from other bidders.
The report said weaknesses in governance and scrutiny contributed to later disruption and uncertainty for patients and staff when problems emerged.
Concerns included financial and workforce pressures, unpaid invoices, and issues relating to tax and pension payments. Some contracts were later handed back, requiring the health board to step in to protect services.
Natasha Asghar MS, Welsh Conservative Shadow Cabinet Minister for Health and Social Care, said the findings were “deeply concerning”.
She said: “Patients and staff were left facing disruption and uncertainty because proper scrutiny was not carried out before these contracts were awarded.
“The Welsh Conservatives believe lessons must be learned to ensure robust checks are in place, protect frontline services and restore confidence in primary care across Wales.”
Aneurin Bevan University Health Board accepted the recommendations and said it had already strengthened its processes.
Audit Wales said the case highlighted the need for stronger checks before GP contracts are transferred, particularly when a single partnership is taking on multiple practices in a short period.
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