Enfield · COSHH / HSG258
Statutory thorough examination and testing of local exhaust ventilation for Enfield workshops and production sites, keeping fume and dust control compliant with COSHH and HSE guidance HSG258.
Enfield
Enfield is an outer north London borough of around 330,000 in the Lee Valley, home to the historic Royal Small Arms Factory at Enfield Lock and the world's first cash machine.
The work is light industry and food - the light engineering and metal fabrication of the Lee Valley corridor, the food manufacturing and distribution, and the printing and plastics - across the Brimsdown Industrial Estate and Crown Road estates, with the bodyshops between them.
Every Enfield process that gives off fume, dust, mist or vapour falls under COSHH, which requires the contamination held at source by local exhaust ventilation and that LEV thoroughly examined and tested at least every fourteen months. We test right across the site, from the Brimsdown Industrial Estate plant to the single-bench Enfield units, logging capture and face-velocity figures and returning a clear pass-or-remedial outcome with each hood identified and labelled.
By sector
A system that catches fume, dust, mist or vapour at the point it is released is LEV, and for Enfield employers and others across Greater London it is the record COSHH looks for first.
Grinding, machining and weld-fume extraction across the Lee Valley engineering and fabrication units, where metal dust and fume need capture at source.
Steam, flour-dust and mist extraction across the large and diverse food producers and bakeries, where organic dust is both a health and a combustion risk.
Solvent, ink-mist and particulate extraction across the print and plastics lines, where VOC vapour and melt fume need capture proven.
On-torch extraction, fume arms and downdraught benches across the Brimsdown Industrial Estate and Crown Road units. Since the HSE's 2019 reclassification, all welding fume - mild steel included - is treated as carcinogenic.
Spray-booth and prep-bay extraction at Enfield bodyshops. Two-pack paints release isocyanates - the leading cause of occupational asthma - so booth airflow is examined to its design figure.
Fume-cupboard face-velocity testing for the local college and Chase Farm Hospital, to the containment their work demands.
On the ground in Enfield
We are out under Enfield's extraction every week. The proof that matters is the jobs, not a stock photo.
A plastic recycling and shredding yard in Enfield had the main shredder-hopper extraction line crushed flat where a forklift had caught the flexible duct. We spliced the crushed section out, fitted a rigid steel pipe segment and verified the transport velocity. It passed after the on-site repair, back to 22 metres per second to clear the plastic flakes. It was a heavy outdoor site in winter, so high-visibility thermal gear and coordination with the plant drivers were needed.
The test
Under HSG258 a statutory LEV test is no visual once-over. For an Enfield system it has to answer three things - whether the system is sound, whether it still draws at the hood, and whether that draw holds to what it was designed to deliver.
Ductwork, hoods, filters, fans and dampers checked for damage, blockage and leakage across the Brimsdown Industrial Estate units - the faults that quietly kill capture.
Face and capture velocities, static pressures and airflows measured at each hood with calibrated instruments - numbers, not opinion.
Readings compared to the system's commissioning figures, so drift from as-designed is caught before it becomes a failure on an Enfield line.
Where exposure is in question - a light engineering and metal fabrication process, say - sampling confirms whether control is actually protecting the people at the process.
The duty
COSHH Regulation 9 makes it plain: any LEV controlling exposure to a hazardous substance has to be thoroughly examined and tested at intervals no greater than fourteen months, and the resulting records kept for at least five years.
On most Enfield sites - the Brimsdown Industrial Estate units and the smaller workshops alike - it is the fourteen-month clock that bites: let it lapse and the system is non-compliant that day, however well it seems to run. We examine it, tag each hood with its status and next-due date, and hand over the report an HSE inspector or insurer will want. Where something fails you get the reading, the cause and the remedy - never just a red sticker.
How it runs
Full visual and structural check of every hood, duct run, filter and fan across the Enfield site.
Calibrated velocity, pressure and airflow readings at each extraction point.
A COSHH-compliant report: results against benchmark, clear pass or fail, and plain-English actions for the Enfield duty-holder.
Each system tagged with status and next-due date, so compliance is visible on the Crown Road floor.
Questions
Under COSHH Regulation 9, most local exhaust ventilation needs a thorough examination and test at least every 14 months, with higher-risk processes more often. A light engineering and metal fabrication bay, a food manufacturing and distribution bench and a lab fume cupboard can each sit on a different interval - we set the right one for every system.
Yes - the industrial estates and workshops around Brimsdown Industrial Estate and Crown Road, the university and hospital labs, and the wider Greater London.
No. LEV testing is a statutory examination of fume and dust control to COSHH and HSG258, with capture and face-velocity readings; TR19 is kitchen grease and fire risk. We do both across Enfield, but a Brimsdown Industrial Estate fabrication shop and a Green Lanes canopy are kept as the separate jobs they are.
Yes. Each hood is labelled with its status and next-due date, and you get the HSG258 report and system schematic for your COSHH file - the record an HSE inspector visiting a Brimsdown Industrial Estate unit will ask to see.
Yes. A new spray booth or fume-arm install at an Enfield workshop needs a commissioning test to prove it performs to its design figures before it goes into service - we measure it and document the baseline the 14-month clock then runs from.
We record it as remedial and set out what is needed - airflow, ductwork, filtration or capture at the hood. You do the work and we re-test, and on a Brimsdown Industrial Estate production line we can usually fit the re-test around your shifts. We will not pass a system that does not control exposure.
Light engineering and metal fabrication, food manufacturing and distribution, printing and plastics, welding and fabrication, vehicle body and paint, and the labs of the college and hospital - the trades clustered around Brimsdown Industrial Estate and Crown Road and across the wider Greater London.
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