Two women who owned and operated a residential day care in California have been arrested after two toddlers drowned earlier this month.

Nina Fathizadeh, 41, and Shahin Gheblehshenas, 64, were charged with felony child endangerment resulting in death and criminal negligence, according to press releases from police and the Santa Clara County District Attorney’s Office.

The mother and daughter ran Happy Happy Daycare in San Jose.

On the morning of Oct. 2 police responded for a wellness check after Fathizadeh called 911 to report a drowning at the small day care licensed home on Fleetwood Avenue.