Water is a defining feature of British Columbia’s landscape. From rushing rivers and mountain streams to wetlands, lakes, and coastal environments. Freshwater resources shape our natural environment and support communities, wildlife, and ecosystems.
As development continues across the province, the relationship between water and the built environment becomes increasingly important. Roads, buildings, parking lots, and construction sites change how water moves across the landscape. Stormwater management and treatment help address these changes by protecting water quality and supporting the health of surrounding ecosystems.
At Pure Water Engineering (PWE), we recognize that effective stormwater treatment requires more than one standard approach. Every project has unique site conditions, construction requirements, and environmental considerations. Our goal is to develop practical, project-specific solutions that meet regulatory performance requirements while working for the client’s needs.
Why Stormwater Treatment Matters
Rainwater may appear harmless, but once it flows across anthropogenic landscapes such as disturbed soils, construction sites, roads, and industrial properties, it can collect contaminants before entering nearby watercourses.
Depending on the site, stormwater runoff may contain:
- Suspended sediment and fine particles
- Petroleum products
- Heavy metals
- Nutrients such as phosphorus and nitrogen
- Other site-specific contaminants
These pollutants can affect lakes, rivers, wetlands, and marine environments. Sediment can reduce water clarity and impact fish habitat, while excess nutrients can contribute to eutrophication and harmful algal blooms. Effective stormwater treatment helps reduce these risks by addressing contaminants before water is discharged into the surrounding environment.
As it becomes more and more apparent through provincial and local regulations, stopping contaminants from going into the environment is a priority. For construction projects, appropriate treatment can also help support regulatory compliance, reduce environmental risks, and minimize costly interruptions.
Water in the Urban Environment
In natural landscapes, soils absorb rainfall, vegetation filters it, and it gradually enters streams and groundwater. Development can interrupt these natural processes by replacing permeable surfaces with roads, buildings, and parking lots. As we know, rain on Vancouver Island is constant during the winter months, and while it does not stop construction like the winters do in other places, it can seriously affect a project if not managed properly.
Successful stormwater management therefore must consider both water quantity and water quality. Water quantity management focuses on reducing peak flows, controlling runoff volumes, and managing flooding risks. Water quality management focuses on removing pollutants such as suspended solids, hydrocarbons, metals, and nutrients before they reach receiving environments. These two objectives are closely connected. A well-designed stormwater system considers how water moves through a site, how pollutants are transported, and how treatment can be integrated into the overall design.
The Challenge with One-Size-Fits-All Treatment Systems
Many construction projects require temporary stormwater treatment systems, but not every project requires the same equipment or treatment capacity. Off-the-shelf systems are often designed to accommodate a broad range of conditions. While this may be appropriate for some applications, it can also result in systems that are more complex or costly than necessary.
At PWE, we frequently hear from industry that some available off-the-shelf treatment systems are over-engineered for the projects they are intended to serve. Our approach is different. Our system design takes into consideration the specific conditions and requirements of a site to engineer treatment systems that fit your needs. The objective is to identify solutions that provide meaningful environmental benefits while meeting the actual requirements of the project. The result is practical stormwater treatment, greater cost control, simpler implementation, and compliance with applicable discharge requirements.
PWE’s Advantage
Our stormwater treatment services are supported by an entrepreneurial, client-focused culture and a team of dedicated staff bringing decades of knowledge, experience, and a commitment to getting things done.
Treatment systems need to be effective, but they also need to be practical to deploy, operate, and maintain. Because of that, our approach emphasizes:
- Quick Deployment Solutions
- Strategic Planning
- Practical Engineering
- Cost Control
- A Custom-Tailored Approach for Projects of Every Size
PWE’s stormwater treatment process is designed to address these factors through a practical, project-specific workflow. Drawing from our years of expertise in environmental consulting and freshwater research, we are proud to develop solutions that both work and are practical.
A general stormwater project with PWE would include:
- Stormwater Management Plan Consultation
Waypoint Environmental Services, PWE’s sister company, develops project-specific Stormwater Management Plans to help identify how stormwater will be managed during construction and how treatment requirements will be addressed. Depending on the project, this may involve evaluating site drainage, proposed construction activities, water quality concerns, and applicable municipal or regulatory requirements.
Early planning helps establish a clear approach and expectations for stormwater management and can support the building permit process.
- Initial Water Quality Sample
Initial water quality sampling helps identify contaminants of concern and provides information that can inform treatment design. Each municipality around Victoria, BC, including the City of Victoria, has slightly different criteria.
Depending on the site and applicable municipal stormwater discharge requirements, sampling may include parameters such as:
- Turbidity
- Total suspended solids (TSS)
- pH
- Hydrocarbons
- Metals
- Nutrients
- Other site-specific contaminants
This information helps ensure that the proposed stormwater treatment system is designed around actual water quality conditions rather than assumptions.
- Final Treatment Design and Installation
Once the site conditions and water quality requirements are understood, PWE develops a treatment approach suited to the project. The final treatment design considers the project’s specific needs, including construction sequencing, expected water volumes, available space, and regulatory performance requirements.
The objective is to provide a treatment system that is effective, practical to implement, and appropriately scaled to the project.
- Municipal Approval and Water Discharge
Stormwater treatment does not end with installation. The final stage involves coordinating the treatment approach with applicable municipal requirements and discharge conditions.
This is where Waypoint Environmental Services comes in again to support projects by helping ensure that treatment systems are designed and implemented with relevant water quality requirements in mind. Where appropriate, monitoring and water quality information can also help demonstrate that treatment is functioning as intended and that discharge conditions are being addressed.
Partner with Pure Water Engineering
At Pure Water Engineering, we understand that effective stormwater treatment requires more than selecting a standard piece of equipment. Our multidisciplinary experience supports this type of practical, integrated approach. By considering the full project context, we can help identify treatment strategies that balance environmental protection, regulatory requirements, and project needs.
Whether you are planning a residential development, commercial project, industrial facility, or construction activity requiring temporary water treatment, early stormwater planning can help reduce risk and support a smoother project.