What happens during an environmental audit? A step-by-step guide for UK businesses

Introduction

If you’ve been told your organisation needs an environmental audit, or it’s required to receive your next certificate, you probably have a few questions.

You might be wondering: how long will it take? What is an auditor actually looking for? What should we prepare? Are we missing anything?

At Little Green Consulting, we support organisations in evaluating their compliance with environmental legislation, quality standards, and management systems while identifying practical opportunities for improvement. Whether conducting a legal compliance audit, an internal environmental audit, or supporting an organisation through external certification assessments, the focus is always on clarity, risk reduction, and continuous improvement. It’s important to remember that we are on your side! It’s our job to help guide you through the many elements of being environmentally compliant and lessen any stress and confusion.

In this guide, we’ll walk you through what happens at an environmental audit step by step, so you know exactly what to expect.

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Step 1: Scoping the Audit

Every audit begins with defining the scope. We’ll have a call to find out about your business and your specific needs.

This includes:

• Which sites or operations are included
• Which regulations or standards apply (e.g. ISO 14001, waste regulations, SECR)
• The objectives of the audit (compliance check, certification, internal review, gap analysis)

This stage ensures the audit is proportionate and focused on what matters most to your organisation. As qualified Environmental Lead Auditors and IRCA Lead Auditors, we are able to tailor the audit specifically to your business.

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Step 2: Audit Document Review

During any site visit, our team will usually request documentation to support the actions and systems your organisation has in place. These might include:

• Environmental policies
• Risk assessments
• Permits and licences
• Waste transfer notes
• Energy data
• Previous audit reports
• Incident logs

This review helps identify areas that may need closer inspection during the site visit.

Common client concern:
“Will we get in trouble if something is missing?”

In reality, audits are about identifying gaps and creating an improvement plan to ensure legal and environmental compliance. If we discover issues, it simply means there is room for improvement, and that’s exactly what we are there to help with.

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Step 3: The Site Visit

The site visit is often what people picture when they think of an environmental audit.

During this phase, our team will typically:

• Walk through operational areas
• Observe waste storage and segregation
• Review hazardous material handling
• Assess energy usage practices
• Check spill control measures
• Evaluate environmental signage and training awareness

Environmental auditors are looking for compliance in these areas. This is about seeing how policies translate into day-to-day practice and can take anywhere between a couple of hours and multiple days to complete.

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Step 4: Staff Interviews & Discussions

Environmental performance is embedded in the way your team operates.

During an audit, we will speak with:

• Site managers
• Maintenance staff
• Environmental leads
• Health & Safety representatives

These conversations help assess awareness, training effectiveness, and operational consistency.

Common client concern:
“Are staff being tested?”

No – interviews are conversational and focused on understanding processes.

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Step 5: Reporting & Findings

After the audit, you’ll receive a structured report outlining:

• Areas of compliance
• Non-conformities (if any)
• Observations
• Opportunities for improvement
• Risk levels or priority actions

A good audit report should be clear, practical, and prioritised to your organisation’s specific requirements.

At Little Green Consulting, all audits involve sampling. This means we do not review every single element, but instead examine system samples to create audit trails that may identify potential non-conformances. This approach ensures findings are evidence-based and properly tracked.

One of the most common areas of non-conformance we see:

• Chemicals being improperly stored or a lack of bunding.

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Step 6: Action Planning & Ongoing Support

The audit doesn’t end with a report.

The most valuable audits translate findings into:

• Corrective action plans
• Updated procedures
• Training recommendations
• Strategic sustainability improvements

At this stage, organisations move from compliance checking to performance improvement.

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Final Words

Environmental audits shouldn’t feel like a tick-box exercise.

When approached properly, they provide clarity, reduce risk, and create a clear path for improvement.

If you’re preparing for an environmental audit or want to understand where your organisation stands, our team at Little Green Consulting can help.

We help UK businesses meet environmental standards. Get in touch to find out how we can help.