Project

NORTHEAST TRANSIT

Alberta, Canada

A transit station in Alberta needed to reduce potable water usage by implementing a rainwater harvesting system (RWHS) to collect and treat their rainwater for the washing of their city buses.

Net Zero Water’s Director of Rainwater Harvesting & Water Reuse, Penh Tov, was contacted by a company in Edmonton was helping the associated municipality with this project.

Consulting with Penh, the company found that they could move closer to their ‘Net Zero Water’ goal by not only using rainwater for their bus wash needs, but also for closed loop cooling at the municipal transit facility.

HIGHLIGHTS

  • Created a design with Tier 3 treatment that would meet the draft CSA/ICC B805-201x Rainwater Harvesting Systems standard for RWH.
  • Submitted a Water Safety Plan to Alberta Health; the system addresses all regulatory reviews for public health protection.

Solution

As with all projects which need to obtain specific permitting, there were a few challenges that needed to be addressed before moving forward. Although they did not have specific guidelines to follow, Alberta Heath’s concerns needed to be taken into consideration. Net
Zero Water’s rainwater harvesting system would need to comply with any regulatory requirements that could potentially come up.

As a result, a Tier 3 treatment design was created, including filtration, UV disinfection and chlorine injection for residual disinfection that would meet the draft CSA/ICC B805-201x Rainwater Harvesting Systems standard for RWH. Net Zero Water also submitted a Water Safety Plan to Alberta Health for additional reassurance that the system addresses all stringent regulatory reviews for public health protection.

With Net Zero Water’s ability to meet all treatment and potential regulatory requirements, the customer was able to provide the right solution for the application.

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