A 3-year-old girl and her grandmother were found dead Thursday morning in their backyard pool in Woodbridge, both apparent drowning victims.
Emergency medical workers tried desperately to revive the victims, but to no avail.
Law enforcement officials say it appears the little girl somehow fell into the pool and her grandmother, who did not know how to swim, jumped in after her.
Though the investigation into the incident is ongoing, San Joaquin Sheriff's spokesman Les Garcia said that by all indications, it appears to be a "tragic, tragic accident."
The names of the victims had not been released by press time Thursday night.
Around 10:45 a.m. Thursday, San Joaquin County Sheriff's officers received a call that a landscaper had pulled the child and her 65-year-old grandmother from the pool on the 500 block of Sandstone Court after he had discovered them when he arrived to mow lawns.
Paramedics transported the woman and the girl to Lodi Memorial Hospital, where emergency medical personnel attempted to revive them, but were unsuccessful.
Garcia said sheriff's deputies learned that the grandmother did not know how to swim, but believed that after she saw her granddaughter fall into the pool, she jumped in after her.
It is unclear how long the victims were in the pool before they were discovered.
The neighborhood remained quiet during the course of the Thursday morning investigation. The grandmother's beige Honda Civic sat in front of the home, just a short distance away from a single sheriff's car.
The truck hauling a trailer for the landscaper sat idly in the street.
Alex Ramirez, whose co-worker was the one who pulled the bodies from the pool, walked out from the backyard around 1 p.m., exhausted.
A single bouquet of flowers lay on the stoop in front of the entrance to the house. They stayed there throughout the day, untouched.
George Davila, who lives across the street from the victims' home, said the family was renting the home and had only been there a short while, maybe three to four months.
He said the family had two children — the 3-year-old and a 6-year-old — but that they mainly kept to themselves.
Davila added that he saw the grandmother come to the home every morning to watch the toddler while the husband and wife and older child left for the day.
He added that he would see the woman push the grandchild around in a stroller when she went on walks during the day.
"They were quiet," Davila said. "The (grandmother) would come in the morning, they would leave, come back after dark and do it all again the next day."
The 6-year-old sibling, Garcia said, was at day care at the time of the incident.
Employees for Lodi Property Management, the company that is renting the home to the family, declined to comment on the incident.
Contact reporter Katie Nelson at firstname.lastname@example.org.