Installation of Commercial & Industrial Rainwater or Greywater Cistern Systems

RAINWATER USAGE OVER STORMWATER DRAINAGE

We design, supply, and install dry hydrants, commercial and industrial cistern rainwater or greywater systems for facilities across Ontario. From large underground cisterns to treatment, pumping, and controls, our solutions turn roof-water-runoff into usage solutions for a variety of needs, including fire-prevention storage (as a dry hydrant). We engineer to local codes and performance targets (flow, turnover, redundancy), help with LEED/ESG documentation, and provide turnkey commissioning and maintenance.

Applications

• Property Irrigation (landscape, greenhouse, courtyard features)

• Fire-prevention cisterns (drafting points or pump suction integration)

• Process water reuse (equipment cooling, washdown, batch makeup)

• Non-potable building supply (with backup city feed)

• Fleet depots & yards (water for truck wash systems, wash pads, dust control)

• Additional stormwater capture & detention to reduce discharge fees

Industry Examples

• Business Parks

• Hotels & resorts

• Multi-residential buildings (condominium groups)

• Office towers & commercial complexes

• Industrial facilities (cooling, process water)

• Logistics & fleet operations (vehicle washing)

• Car dealerships & commercial car washes

• Hospitals & institutional campuses

• Corporate campuses

• Remote/off-grid communities

• Laundry & textile service providers

• Sport & recreation facilities

Outcomes for Owners

• Reduce municipal water costs and stormwater fees

• Improve ESG/LEED metrics with measurable onsite reuse

• Increase resilience during restrictions or supply interruptions

• Centralized data & alarms for operations teams

Our Services

• Cisterns: underground concrete or fiberglass tanks (10,000+ gal)

• Filtration & treatment: screens, sediment filtration, UV/chemical disinfection as required, ultra/nano filtration, etc.

• Pumping & controls: duty/standby pumps, VFDs, level sensors, BMS integration, and auto city-water bypass allowances

• Design & approvals: drawings, submittals, control narratives, CSA/NSF component alignment

• Installation & commissioning: turnkey install, testing, and training

• Service plans: seasonal inspection, cleaning, performance verification

Technical Notes (general)

• CSA S6 specifications CHBDC / AASHTO standards

• 35–50 MPa concrete @ 28 days and CL-625 loading for H-20 or HS-20

• CSA B66 compliance as needed

• CL-625-ONT bridge code standard for multi-axle

Frequently Asked Questions

How big should a commercial cistern be?

Most projects fall between 10,000–350,000 US gallons, driven by roof catchment, reuse demand, turnover, and fire storage (if included).

Can one system serve toilets and irrigation?

Yes. We commonly design multi-use systems with prioritized demand, city-water backup, and clear labeling.

What treatment is required?

It depends on end use. Typical trains: screening + cartridge/centrifugal filtration, then UV or chemical disinfection for building uses.

What about winter?

Underground tanks operate year-round. Above-ground systems use insulation, heat tracing, and enclosure; lines are protected and monitored.

Do you work outside Ontario?

We would like to support projects across Canada, and we are currently licenesed in Ontario. We coordinate local code requirements and fire department standards.

Book a consultation

Request a commercial/industrial site review and preliminary sizing.

Email: Andrew@BlueBearWaterworks.ca