# Title: Trois-Rivières
> Source: https://www.magnor.ca/en/projects-case-studies/trois-rivieres  
> Group: Our Products  

- Municipalities

**Location:** Trois-Rivières, Quebec

**Type of project:** Drinking water

**Type of water:** Groundwater

**Controlled parameters:** Iron and manganese

**Flow rate:** 2,355 US gallons/min

**Project overview:**

- In 2015, the City of Trois-Rivières was looking to purchase two separate iron and manganese treatment systems to meet provincial drinking water regulations.
- The City planned to use the systems to treat water from 10 groundwater wells at the Des Érables station and water from 2 wells at the Cardinal-Roy station.
- The 10 wells had different contaminant concentrations, making it harder to find a solution that would deliver the desired level of performance.
- The systems had to be integrated with the city’s existing drinking water systems.
- This large-scale project was one of the biggest greensand water treatment projects in Quebec.

**Magnor solutions:**

- Six greensand filters complete with interconnecting stainless steel piping
- Tanks made of painted steel to provide the required flow
- Control valves installed in addition to various control panels
- Filters operating simultaneously with the flow equally split between them so they can handle the variable flows of the 10 wells
- Control panel capable of handling complex logic functions to adjust flow rates and dosing rates depending on which wells are active

## Associated issues

- Iron
- Manganese

## Associated solutions

- Greensand Filters
- Potassium Permanganate Detector

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