Widnes · COSHH / HSG258
Statutory thorough examination and testing of local exhaust ventilation for Widnes workshops and production sites, keeping fume and dust control compliant with COSHH and HSE guidance HSG258.
Widnes
Widnes is a Cheshire town in Halton of around 62,000, the birthplace of the UK chemical industry in 1847 and home of the Widnes Vikings on the Mersey.
The signature trade is chemicals - the fine chemicals and pharmaceuticals of the town that started the industry, the plastics and packaging, and the food manufacturing - across the Gorsey Lane and Moor Lane estates, with the bodyshops between them.
Every Widnes 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 Gorsey Lane plant to the single-bench Widnes units, logging capture and face-velocity figures and returning a clear pass-or-remedial outcome with each hood identified and labelled.
By sector
Any system that draws fume, dust, mist or vapour off at source counts as LEV, and across Widnes and the rest of Cheshire it is the evidence COSHH expects you to hold.
Vapour, mist and process-fume extraction across the chemical and fine-chemical plants, the trade the town began in 1847, where process vapour needs capture at source under permit.
Solvent, dust and vapour extraction across the pharmaceutical units, where process fume and vapour need capture proven.
Fume, dust and vapour extraction across the plastics and packaging lines, where process fume needs capture at source.
On-torch extraction, fume arms and downdraught benches across the Gorsey Lane and Moor Lane units. Since the HSE's 2019 reclassification, all welding fume - mild steel included - is treated as carcinogenic.
Spray-booth and prep-bay extraction at Widnes 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 Riverside College and the town's treatment centre, to the containment their work demands.
On the ground in Widnes
We are out under Widnes's extraction every week. The proof that matters is the jobs, not a stock photo.
A fine-chemicals plant in Widnes had a fume-scrubber intake on a reactor bay letting an acidic vapour escape because the capture hood had been knocked out of position on its mount. We repositioned the hood, checked the capture with a smoke test and measured the intake velocity. It failed at first on the hood alignment and passed once it was reset, the vapour drawn cleanly to the scrubber. It was a permit-to-work area with a corrosive-chemical risk, so vapour monitoring and chemical PPE were in place.
The test
A statutory LEV test under HSG258 is not a visual once-over. On a Widnes system it answers three things: is the system intact, does it still capture, and does that capture match what it was designed to do.
Ductwork, hoods, filters, fans and dampers checked for damage, blockage and leakage across the Gorsey Lane 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 a Widnes line.
Where exposure is in question - a chemicals and fine chemicals process, say - sampling confirms whether control is actually protecting the people at the process.
The duty
Under Regulation 9 of COSHH the obligation sits squarely with the employer - any LEV that controls a hazardous substance needs a thorough examination and test at least every fourteen months, and the records held for five years.
For most Widnes sites - from the Gorsey Lane units to the smaller workshops - the fourteen-month clock is the one that bites: miss it and the system is non-compliant the day it lapses, whatever its condition. We examine, label each hood with its status and next-due date, and issue the report an HSE inspector or your insurer will ask to see. If something fails, you get the reading, the cause and the fix - not just a red sticker.
How it runs
Full visual and structural check of every hood, duct run, filter and fan across the Widnes 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 Widnes duty-holder.
Each system tagged with status and next-due date, so compliance is visible on the Moor Lane 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 chemicals and fine chemicals bay, a pharmaceuticals bench and a lab fume cupboard can each sit on a different interval - we set the right one for every system.
Yes. We plan testing around production shifts at the Gorsey Lane units, term-time access at the Widnes university labs, and normal hours at smaller workshops, so the examination never stops the line.
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 Gorsey Lane production line we can usually fit the re-test around your shifts. We will not pass a system that does not control exposure.
A dated report to the HSG258 method, the readings taken, a pass or remedial outcome for each hood, and system labelling - the evidence a duty-holder at Gorsey Lane or a smaller Widnes workshop needs for their COSHH file.
Chemicals and fine chemicals, pharmaceuticals, plastics and packaging, welding and fabrication, vehicle body and paint, and the labs of the college and treatment centre - the trades clustered around Gorsey Lane and Moor Lane and across the wider Cheshire.
Yes. A new spray booth or fume-arm install at a Widnes 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.
Yes - the industrial estates and workshops around Gorsey Lane and Moor Lane, the university and hospital labs, and the wider Cheshire.
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