Coliform bacteria contaminate tap water across eight Lower Silesian villages near Wrocław

Discovery of contamination in Mokronos Górny

Routine water monitoring in the Lower Silesian municipality of Kąty Wrocławskie identified coliform bacteria concentrations above allowable statutory limits on 8 October 2026. Sanitary inspection services traced the source of the bacterial contamination to the local water intake and treatment station situated in Mokronos Górny. Following confirmation of the laboratory readings, the District Sanitary Inspectorate in Wrocław issued an emergency assessment declaring the tap supply hazardous for domestic use. The contamination directive covers eight specific villages across the municipal district: Gądów, Mokronos Dolny, Mokronos Górny, Zybiszów, Cesarzowice, Zabrodzie, Jaszkotle, and Nowa Wieś Wrocławska. Kąty Wrocławskie is situated directly southwest of the regional capital Wrocław, prompting local authorities to publish the sanitary inspection announcement across municipal web portals.

Sanitary restrictions on tap water usage

The District Sanitary Inspectorate established comprehensive restrictions that prohibit residents in the eight affected villages from using tap water for culinary or personal hygiene tasks. Sanepid warned that the tap water remains unsafe for human consumption even after being boiled, as heat treatment does not rectify the water quality for domestic use under current conditions. The order bars residents from preparing food, drinking directly or indirectly, washing fresh fruit and vegetables, cleaning cookware, and running household laundry. Furthermore, health authorities prohibited all personal hygiene applications, warning residents that using the water for bathing, showering, or brushing teeth carries biological risks. The sanitary inspectorate instructed the local population that tap water may be used strictly and exclusively to flush household toilets. Poland's Government Centre for Security broadcast regional alert messages directly to mobile phones throughout Wrocław County to reinforce the instructions.

Water in the municipality of Kąty Wrocławskie (pow. wrocławski) is unfit for consumption and hygienic purposes. Follow announcements.

Emergency water points and municipal response

To provide potable water to residents facing cutoffs from clean tap supplies, municipal administrators and Zakład Gospodarki Komunalnej Kąty Wrocławskie deployed urgent logistical measures. The municipal water utility organized two separate distribution mechanisms, positioning mobile water tankers, known locally as beczkowozy, alongside fixed stationary supply stations across the designated villages. Both the mobile tankers and the stationary collection depots operated on Thursday with an evening distribution window ending at 21:00. Local officials also published an emergency helpline, providing phone number 725 775 377 to allow residents to request information regarding supply schedules and safe water points. Meanwhile, Zakład Gospodarki Komunalnej clarified that the contamination does not impact the rest of the municipality of Kąty Wrocławskie. The utility stated that water supplied to all other villages complies with the standards established by the regulation of the Minister of Health.

Water in these areas is suitable for consumption and can be safely used for food and hygienic purposes.

Retesting schedule and subsequent decisions

Inspectors from the sanitary inspectorate returned to the water treatment plant in Mokronos Górny on Thursday to extract fresh water samples for comprehensive microbiological re-examination. Laboratory findings from these newly gathered samples will be presented on Friday, 9 October 2026. Municipal administrators confirmed that official decisions regarding whether to prolong or terminate the water ban will be made once those test results are published. Until laboratory verification certifies that coliform bacteria counts meet safe regulatory parameters, households across the eight villages must rely exclusively on municipal tankers and stationary distribution points for all consumable water.