Hensley Lake and H.V. Eastman Lake in Madera County Experiencing Algae Blooms Details Last Updated: Saturday, 30 June 2018 05:57 Published: Saturday, 30 June 2018 05:57 June 30, 2018 - The U.S. Army Corp of Engineers reports Hensley Lake and H.V. Eastman Lake have been experiencing algae blooms. Water quality testing has taken place and confirmed the presence of toxins at both lakes. Signage has been posted. Visitors are urged to follow all recommendations on posted signage, and “When in doubt, stay out.”Source: U.S. Army Corp of Engineers