Nigeria, Oct. 30 -- The Lagos State Government has warned borehole operators to obtain the necessary permits or risk having their facilities sealed and facing prosecution.

The Lagos State Water Regulatory Commission (LASWARCO) said drilling boreholes and extracting groundwater without authorisation could contaminate underground water, cause land subsidence and threaten the state's water resources.

The warning comes amid concerns over groundwater pollution in Lekki.

In August 2025, the Permanent Secretary, Office of Drainage Services and Water Resources, Mahmood Adegbite, warned that residents in the area could be consuming contaminated water because of inadequate wastewater treatment.

Mr Adegbite, who spoke at a stakeholders' meeting,...