At the beginning of summer, we completed the construction of a new water treatment plant in the town of Kalników – just 2 km from the Polish-Ukrainian border, in the Stubno commune, near Przemyśl.

The Kalników Water Treatment Plant is a compact yet highly efficient facility with a capacity of 200 m³/day. The raw water is characterized by high iron content (4.80 mg/l), ammonium ions (2.20 mg/l), and manganese (0.12 mg/l). To address these parameters, we designed a three-stage pumping system and two-stage aeration: in the raw water tank and between the filtration stages. The process is completed by disinfection using chlorine dioxide.

This is not just a technical investment, but also an example of exemplary cooperation. The investor – the Stubno Commune – demonstrated great openness, commitment, and professionalism, for which we sincerely thank them.

We would also like to thank our colleague Gosia, the service team and the general contractor – Mr. Norbert and Mr. Witold.

That was a great job – thank you!