Uasin Gishu County — Authorities have launched a multi-agency response after a lorry carrying an unknown chemical substance overturned in the Matharu area of Timboroa Location, spilling its contents into the Kipkarren-Bindura-Kesses river system. The incident, reported by the National Environment Management Authority (NEMA), prompted immediate measures to prevent further contamination downstream and ensure public safety.
According to NEMA, the lorry, which was en route to a neighboring country, overturned while transporting the chemical. The substance’s color was not immediately identifiable, raising concerns over potential contamination. Environmental teams quickly cordoned off the affected area and collected samples for laboratory analysis at the Government Chemist.
“Additional precautionary measures have been taken to divert the chemicals away from the river to prevent any further downstream pollution,” NEMA stated. The agency confirmed that Nabkoi and Kesses water treatment plants, along with Moi University’s water supply, have been cordoned off as a precaution.
Members of the public have been advised not to use water from the affected river system for drinking, irrigation, or domestic purposes, whether for humans or animals, until sample analysis is complete. NEMA has further requested that residents report any unusual observations, including changes in water color, plant wilting, foaming, or other irregularities.
The overturned lorry has since been removed from the site and taken to Burnt Forest Police Station. Trenches were dug around the spill area, and the chemical mixture was denatured to mitigate contamination risks. Authorities emphasized that the swift response from multi-agency teams helped avert more serious environmental and public health impacts.
Local water users expressed relief at the rapid response. “We noticed some discoloration in the river this morning, and it was worrying because it feeds both the Nabkoi and Kesses water systems,” said a Timboroa resident who wished to remain anonymous. “It’s reassuring to see NEMA and other agencies act quickly to contain the spill.”
NEMA’s corporate communications team highlighted that the incident underscores the need for strict compliance with transport and safety regulations for hazardous substances. The Material Safety Data Sheet (MSDS) for the spilled substance is in the possession of authorities, who are using it to guide containment and remediation measures.
Environmental experts note that chemical spills into river systems can have serious ecological and public health consequences, depending on the nature and concentration of the substance. Rivers in Uasin Gishu support both domestic and agricultural water use, and contamination can affect both humans and livestock.
The agency has provided contact information for the public to report environmental incidents or seek guidance: 0741 101 100 or incidence@nema.go.ke. NEMA also emphasized the ongoing commitment of the public to cooperate with environmental authorities, noting that community vigilance played a critical role in ensuring timely intervention.
This incident adds to growing concerns over the transportation of hazardous materials across Kenya’s rural road networks, particularly in regions where rivers supply water to multiple communities. Observers recommend enhanced training for drivers, stricter enforcement of safety standards, and improved coordination between transport authorities and environmental agencies to prevent similar incidents.
As the investigation continues, authorities will release the results of chemical analyses and provide guidance on when water from the affected rivers will be safe for use. Meanwhile, NEMA has assured residents that containment measures have minimized immediate risks and that continuous monitoring is underway.
The agency’s statement concluded with a reminder to the public: “Our environment, our life, our responsibility,” reinforcing the need for vigilance, adherence to safety protocols, and prompt reporting of any environmental hazards.
