Nelson Marwa 

President William Samoei Ruto has appointed Nelson Marwa as the new Chairperson of the Nairobi Rivers Commission, revoking the appointment of Bishop Margaret Wanjiru.

The changes were announced through Gazette Notice No. 16248, dated October 16, 2026.

According to the notice, Marwa will serve as the chairperson for a three-year term starting immediately.

"In exercise of the powers conferred by Article 131 of the Constitution, as read with section 51 (1) of the Interpretation and General Provisions Act, I, William Samoei Ruto, President of the Republic of Kenya and Commander in Chief of the Defence Forces, appoint Nelson Marwa to be the Chairperson of the Nairobi Rivers Commission, for a period of three (3) years, with effect from the 16th October, 2026. The appointment of Margaret Wanjiru is revoked," the Gazette Notice reads in part.

In August, Wanjiru notified Head of Public Service Felix Koskei of her intention to resign, saying she was ready to move on and focus on other work.

Wanjiru, a former Starehe MP, said her 20 months at the commission had been an important learning experience and thanked Koskei for giving her the opportunity to serve.

“During the 20 months that I have worked in NRC, I have learnt a lot, and I appreciate you for giving me this opportunity. This letter is therefore my 30 days’ notice of resignation. I will vacate office on Monday, August 31,” she said.

Following Marwa’s appointment, Nairobi Rivers Commission chief executive officer Brigadier (retired) Joseph Muracia welcomed him to the commission.

“Mr Marwa brings extensive experience in public administration, government coordination and security management to the Commission,” Muracia said in a statement.

Muracia said the appointment comes at a critical stage in the Nairobi Rivers Basin Regeneration Programme, as the commission continues to coordinate efforts to restore Nairobi’s rivers, protect riparian reserves and promote a cleaner, greener and more resilient city.

“We look forward to advancing the Commission’s mandate under his leadership,” he said.