Tailings, Water and Dust: The Aspects Auditors Check First at a Mine

An auditor walks out to the tailings area and asks to see this month’s monitoring records. Sometimes they’re in a folder. Sometimes nobody knows where they are.

So, what environmental aspects matter most in mining? Tailings, water, dust, hazardous materials and land disturbance usually come first. This blog explains why, and what auditors look for under ISO 14001 environmental aspects in mining.

What is an Environmental Aspect, and Why do Auditors start there?

Every industrial activity interacts with nature. An environmental aspect is any element of an organisation's activities, products, or services that can interact with the environment. The environmental impact is the actual change to the environment, whether adverse or beneficial, caused by that aspect. For example, discharging mine water is an aspect, while changing the chemical composition of a local river is the impact.

ISO 14001:2015 requires your organisation to identify the aspects it can control and influence. You must then evaluate which of these aspects are significant based on set criteria. Auditors start here because the aspects register forms the backbone of your entire environmental management system. If your initial list misses core operational risks, your whole system rests on a shaky foundation.

That’s why auditors start here.

Key Environmental Aspects in Mining That Auditors Check First

Auditors usually start with five areas. Here is what they look at in each, beginning with the one that carries the highest stakes.

Tailings

Tailings are the waste left after ore is processed, often stored behind a dam. An auditor will usually walk the facility and then ask for inspection and monitoring records. They also want to see the emergency plan. A typical question is: “Who checks it, how often, and where is the last report?”

Water

Auditors look at how much water you take, how you use it and what you discharge. They ask for sampling results, permits and calibration records for the meters. If water is scarce at your site, they’ll expect that to show in your assessment.

Dust & Air Emissions

Haul roads, crushers, stockpiles and blasting all create dust. On the site walk, an auditor notices what you can see: dry roads, uncovered stockpiles, broken suppression equipment. Then they ask what you measure and what you do when readings are high.

Waste & Hazardous Materials

Fuel, oils, reagents and explosives need proper storage and handling. Auditors check bunding (containment around tanks), labelling, spill kits and waste records. They often open the spill kit to see if it’s complete.

Land Disturbance & Rehabilitation

Mining changes the land. Auditors ask whether you have a plan to restore it, and whether the work follows the plan.

Noise, blasting and energy use matter too. They’re usually assessed alongside the others, and their significance depends on how close you are to communities and how much fuel or power you use.

Common ISO 14001 Gaps in Mining: Where Mines Go Wrong

These are general patterns, not statistics or findings from any real audit.

●      The aspects register isn’t updated when operations change, so a new pit or plant never makes it onto the list.

●      Monitoring data is collected, but nobody reviews it or acts on it.

●      Contractors work on site outside the system, handling fuel and waste without being briefed on your controls.

●      The emergency plan exists, but nobody has tested it.

●      Staff can’t say what their environmental responsibilities are, even though training records exist.

If one of these sounds familiar, fixing it before the audit is easier than explaining it afterwards. A short readiness check helps you find them.

ISO 14001 Audit Readiness Checklist for Mining

Review these before your audit:

●      Your aspects and impacts register, and how you decided what’s significant

●      Your legal obligations register. This is the list of environmental laws and permits that apply to you, and how you meet them

●      Monitoring and calibration records for water, dust and other measurements

●      Emergency plans, with records of drills

●      Contractor controls, such as induction and checks

●      A completed internal audit and a management review

An auditor will sample these records, so make sure they match what happens on site.

ISO 14001 for Mining in Mongolia: What to Check Locally

Requirements depend on your activities, site conditions and the law that applies to you. This blog doesn’t cover Mongolian legal requirements.

●      A few general points can change how you assess your aspects:

●      Extreme cold and wide temperature swings can affect water systems, storage and equipment.

●      Remote sites can make waste removal and emergency response harder, because help is far away.

●      In some mining regions, water is scarce, which can make water use a more significant aspect.

These are general observations, so check each one against your own site.

For permits, authorities and local environmental rules, check official Mongolian government sources or ask a qualified professional. ISO 14001 certification doesn’t prove legal compliance, and it doesn’t automatically meet Mongolian regulatory obligations.

Conclusion

ISO 14001 environmental aspects in mining usually start with tailings, water, dust, hazardous materials and land. Auditors check these first because they often carry the most risk, though this depends on your site. They want proof that you know your aspects, monitor them and act on what you find.

To discuss ISO 14001 certification for your mining operation, contact SIS Certifications.

Disclaimer: This article provides general information, not legal or regulatory advice.

Frequently Asked Questions

Q: What environmental aspects matter most in mining in Mongolia?

A: Tailings, water, dust, hazardous materials and land disturbance usually come first. In Mongolia, cold winters, remote sites and water scarcity can change which matter most. Your site and applicable law decide.

Q: Does ISO 14001 apply to small mines in Mongolia?

A: Yes, ISO 14001 standard doesn’t depend on size or country. A small mine in Mongolia still has aspects to identify and control, though its system can be simpler.

Q: Does ISO 14001 certification mean a mine in Mongolia is legally compliant?

A: Certification alone doesn’t prove compliance with every Mongolian law or permit. ISO 14001 asks you to know your legal obligations and check that you meet them. Confirm the rules that apply to you with official Mongolian sources or a qualified professional.

Q: What do auditors ask to see first at a mine in Mongolia?

A: Auditors usually ask for the aspects register, the legal obligations register and monitoring records first. Then they walk the site to check if the paperwork matches reality. At remote sites, they may also ask how you handle waste and emergencies

Q: Do contractors at Mongolian mine sites need to follow the system?

A: Yes, if they work on your site or affect your aspects. You need to control or influence what they do, for example with inductions and checks on fuel and waste handling. This matters most at remote sites, where contractors often handle fuel and waste.

Q: How do you choose an ISO 14001 certification body for a mine in Mongolia?

A: There’s no single best body. Check its ISO 14001 accreditation, a scope that covers mining, auditors with mine experience, a clear written quote and coverage in Mongolia. You can ask SIS Certifications, an independent certification body, to confirm each point.