Construction is one of the biggest producers of waste in the UK — and environmental law puts the duty on the people doing the work, not just the company that employs them. Let silty water reach a drain, refuel carelessly near a watercourse, or send waste off site with an unregistered carrier, and an offence has been committed. Fines in the worst cases are unlimited.
This guide explains the environmental duties that apply on site, the incidents that actually happen, and the straightforward controls that prevent nearly all of them.
Why construction is an environmental priority
Sites disturb ground, store fuels and chemicals, generate dust and noise, and produce enormous volumes of waste. They frequently sit next to drains, watercourses, homes and protected habitats. That combination means a routine task done carelessly — jet-washing, refuelling, cutting, clearing vegetation — can cause pollution within minutes.
The law that applies on site
- Environmental Protection Act 1990 — creates the waste duty of care (section 34) and the offence of unauthorised waste disposal.
- Environmental Permitting Regulations — it is an offence to cause or knowingly permit a polluting discharge to surface water or groundwater without a permit.
- Control of Pollution Act 1974 — controls construction noise, and lets councils set permitted working hours.
- Wildlife and Countryside Act 1981 and the Habitats Regulations — protect species such as bats, great crested newts, badgers and nesting birds. Disturbing them can be a criminal offence even if accidental.
Enforcement sits with the Environment Agency (England), Natural Resources Wales, or SEPA in Scotland, alongside local authorities.
The waste duty of care
Anyone who produces, carries, keeps or disposes of waste must:
- Store it safely and securely so it cannot escape, blow away or leak.
- Transfer it only to an authorised person — check your carrier is registered with the regulator. “I assumed they were licensed” is not a defence.
- Describe it accurately on a waste transfer note, and keep the records.
- Apply the waste hierarchy — prevent, prepare for re-use, recycle, recover, and only then dispose.
Hazardous waste — asbestos, oils, solvents, batteries, some paints — carries stricter rules again. Our guide to the duty to manage asbestos covers that side in detail.
The incidents that actually happen
- Silty water to a drain or watercourse — the single most common construction pollution incident. Silt suffocates fish and is highly visible.
- Fuel and oil spills — refuelling without a drip tray, damaged bowsers, unbunded storage.
- Dust — affecting neighbours, roads and workers’ health. Silica dust is also a serious health hazard: see COSHH and construction dust.
- Noise outside permitted hours — one of the most frequent causes of complaints and stop notices. See noise at work for the worker-health side.
- Waste burned or fly-tipped — a criminal offence, and easily traced back.
- Harm to protected species or trees — clearing vegetation in nesting season, or disturbing a bat roost.
The controls that prevent them
- Know where your drains go. Surface water drains usually run straight to a river. Mark them.
- Bund and cover storage, refuel over drip trays, and keep spill kits where they can be reached in seconds — and train people to use them.
- Segregate waste properly and order more accurately so there is less of it.
- Damp down cutting and haul routes; sheet loads; use on-tool extraction.
- Check for protected species and nesting birds before clearing ground or vegetation.
- Include environmental risks in the risk assessment and the method statement — not as an afterthought.
- Report spills immediately. Speed limits the damage and the penalty.
Frequently asked questions
Why does environmental awareness matter in construction?
Construction is one of the largest generators of waste in the UK and a frequent source of water and air pollution incidents. Sites disturb ground, handle fuels and chemicals, create dust and noise, and can damage protected habitats. Environmental law places duties directly on the people doing the work as well as on their employers, so a site worker can personally commit an offence, for example by allowing silty water or diesel to reach a drain.
What environmental laws apply to a construction site?
The main ones are the Environmental Protection Act 1990, which creates the waste duty of care; the Environmental Permitting (England and Wales) Regulations, which make it an offence to cause or knowingly permit a water discharge or groundwater activity without a permit; the Control of Pollution Act 1974, which covers noise from construction sites; and the Wildlife and Countryside Act 1981 together with the Conservation of Habitats and Species Regulations, which protect species such as bats, great crested newts and nesting birds.
What is the waste duty of care?
The waste duty of care under section 34 of the Environmental Protection Act 1990 requires anyone who produces, carries, keeps or disposes of waste to store it safely and securely, to transfer it only to an authorised person, and to describe it accurately on a waste transfer note that must be kept as a record. Checking that your waste carrier is registered with the Environment Agency is part of that duty, and failing to do so is an offence even if you did not know where the waste ended up.
What is the waste hierarchy?
The waste hierarchy is the legal order of preference for dealing with waste: prevent it first, then prepare for re-use, then recycle, then recover value (for example energy), and only then dispose of it. Anyone who produces or handles waste has a duty to apply it and to declare on waste transfer documentation that they have done so. On site it usually means better ordering to avoid over-supply, segregating skips properly, and reusing materials such as crushed hardcore.
What are the most common environmental incidents on construction sites?
Silty or contaminated water running into a surface water drain or watercourse, fuel and oil spills from plant refuelling or damaged storage, dust affecting neighbours and nearby roads, uncontrolled noise outside agreed working hours, burning or fly-tipping of waste, and damage to protected species or trees. Almost all of them are preventable with simple controls: knowing where your drains go, bunded storage, spill kits, damping down, and checking for protected species before clearing ground.
Further reading
Environmental awareness training for construction
At a glance: Nexis CPD offers a £9 CPD-accredited online Environmental Awareness for Construction Workers course — 100% online and self-paced, with an instant, verifiable e-certificate on passing.
Our Environmental Awareness for Construction Workers course covers the legal duties, the waste duty of care and hierarchy, pollution prevention, and the site controls that keep you compliant.
Related: What is a risk assessment? · Construction dust and COSHH · Duty to manage asbestos
£9 per course. CPD accredited, 100 % online, verifiable e-certificate on completion. Pay for 2, get 3 — any 3 courses for £18.
Please note: this is a CPD-accredited awareness course and general information, not legal advice or a substitute for site-specific environmental management, permits, or specialist ecological survey work. Requirements differ across England, Wales, Scotland and Northern Ireland — always follow your site’s environmental management plan and the relevant regulator’s guidance. It is not an Ofqual-regulated qualification.