Common water types

Before starting a project and defining discharge requirements, it is essential to have a solid understanding of the type of water being managed. This is important for several reasons:

  • To identify specific contaminants and associated risks
  • To select the appropriate treatment technologies
  • To comply with applicable laws and regulations
  • To assess environmental impact
  • To achieve both effective and cost‑efficient solutions

For example, stormwater may contain oil and heavy metals, while construction dewatering water often contains high levels of particles as well as particle‑bound contaminants such as metals. Different treatment technologies are therefore required depending on the characteristics of the water.

So, what types of water do we typically handle in our projects — and what defines them?

Water types

Process water

Process water carries defined, often high contaminant levels. Understand why its stable flows and composition shape treatment needs.

Water types

Stormwater

Stormwater carries varying pollutants and fluctuates with weather. Understanding these factors is key to choosing the right treatment approach.

Water types

Leachate

Leachate forms when water passes through waste and picks up diverse pollutants. Learn how its fluctuating flows and complex chemistry affect treatment.

Water types

Dewatering water

Dewatering water varies with weather and site activity. Understand its flow patterns, contaminants, and what they mean for treatment.

Water types

Extinguishing water

Extinguishing water often contains PFAS and other pollutants from firefighting. Learn why its composition varies and how it affects treatment.

Water types

Industrial stormwater

Industrial stormwater often contains metals, oils, and chemicals. Understand how site activities and flows affect treatment requirements.

Do you have questions about different water types?

Need support identifying contaminants or choosing the right treatment method for your project? Get in touch, and one of our specialists will guide you further.

Contact us