UPDATE: The barrel was determined to contain nontoxic wastewater, which will be dealt with by the water treatment facility in Pismo Beach, Cal Fire officials said.
Frady Lane was reopened to the public at 11:36 a.m., according to Pismo Beach police.
Original story: Frady Lane at South Dolliver Street in Pismo Beach is closed this morning as hazardous materials teams try to find out what's in a 55-gallon white barrel in the area.
The barrel is about one-third full of an unknown substance, according to Cal Fire officials.
Pismo Beach police have blocked public access to the road until the substance can be identified.
The incident started just after 8:30 a.m.View Larger Map