Mosiria raised concern after receiving reports that a landlord in the area allegedly released raw sewer waste into an open space near residential homes.
What shocked county officials even more, he said, was the claim that a vegetable seller was displaying and selling produce directly on top of the same area where the sewer waste had been discharged.
In a statement shared on his social media page, Mosiria described the situation as extremely dangerous and irresponsible.
According to him, such actions expose residents to serious health risks and cannot be allowed to continue.
He explained that releasing untreated sewer waste in a residential area creates conditions that could easily spread diseases.
Contaminated water and waste can carry harmful bacteria that may lead to infections and outbreaks of illnesses among residents, especially in crowded informal settlements.
Mosiria also condemned the actions of the vegetable vendor, commonly known as a mama mboga, saying selling food on top of raw sewer waste puts many people at risk.
Vegetables sold in such conditions could easily become contaminated and unsafe for consumption.
“This is a grave public health risk and a clear case of negligence that endangers the lives of innocent residents,” Mosiria said.
He added that authorities must treat the matter with urgency to protect the community.
The incident is reported to have taken place within Embakasi South, an area that already faces several sanitation and environmental challenges.
Residents in informal settlements often struggle with poor drainage systems and limited waste management services, making them more vulnerable to such hazards.
Mosiria said both the landlord and the vendor should face legal consequences for their actions.
He emphasized that individuals who knowingly endanger the health of others must be held accountable.
County officials are expected to investigate the matter further and take appropriate action once the details are confirmed.
Health officers may also inspect the area to assess the level of contamination and determine what steps are needed to protect residents.
Local authorities have also urged members of the public to report similar cases whenever they notice unsafe environmental practices in their neighborhoods.
According to Mosiria, community cooperation is important in helping the county government address sanitation problems quickly.
He reiterated that the county government is committed to improving public health standards and ensuring that food sold to residents meets basic safety requirements.