What is a Waste Audit and Why do We Need One?

Understanding and Reducing Workplace Waste Through Waste Audits

All organizations produce waste, from business-related materials to employee food scraps. Understanding the type and quantity of waste generated is crucial for effective waste management, leading to cost savings and improved sustainability. A waste audit is the key to achieving this.

What is a Waste Audit?

A waste audit is a systematic review of all waste produced in a workplace. It provides a clear picture of what is being discarded, the volume, and common contaminants. This assessment helps evaluate the effectiveness of existing waste management systems and identify areas for improvement and new strategies. Waste auditors manually examine bins, weighing and sorting materials to determine the types of waste and identify any contamination.

While a one-off audit is possible, regular audits are recommended, particularly when implementing new systems or reporting on waste reduction initiatives.

Benefits of a Waste Audit

The benefits of conducting a waste audit vary depending on company goals but generally include:

• Gathering data for waste reporting.

• Evaluating the effectiveness of existing waste management systems.

• Identifying ways to reduce waste costs.

• Establishing the need for additional waste streams and staff education to address contamination.

• Determining if reducing the purchase of certain products that may be going to waste is necessary (e.g., adjusting milk supply if it spoils before being used).

• Meeting certification and ESG standards.

In-House vs. External Waste Audits

Depending on organizational size, needs, and leadership preferences, a company might choose between an in-house or external waste audit.

An in-house audit is more affordable and allows for firsthand observation of the process, providing valuable team experience. It is sufficient for smaller offices seeking basic data. However, it may lack the thoroughness and expert insight of an external audit.

External audits, particularly beneficial for organizations pursuing certifications like NABERS or B Corp, offer comprehensive assessments and expert suggestions for improvements that may not be considered internally.

Choosing a Waste Audit Provider

If choosing an external provider, select a reputable company with positive reviews. Check if local councils have preferred providers or seek recommendations from sustainable business networks. When contacting potential providers, inquire about previous clients, audit scope, and post-audit consultation services.

Implementing Solutions and Future Audits

After completing the audit, implement solutions based on the findings. Schedule follow-up audits to evaluate the effectiveness of implemented changes. Waste audits, from simple in-house checks to comprehensive external audits, offer valuable insights and cost-saving opportunities for organizations of all sizes. They help evaluate system effectiveness and contribute to efficient waste management.