The Nairobi County government has issued a one-week notice to traders and property owners in Eastleigh estate to clean drainage systems within 10 metres of their premises or face strict penalties, including fines up to Ksh200,000.

• Most important fact or figure from the article: Non-compliant traders face fines of up to Ksh200,000, revocation of business permits, or imprisonment for up to six months.
• Key person or organization involved: Geoffrey Mosiria, Chief Officer for Environment, Nairobi County.
• Notable detail that adds context: The directive targets chronic drainage blockages and flooding caused by unlawful dumping, aiming to curb environmental pollution in the densely populated commercial hub.