WEATHERSFIELD TWP., Ohio - Route 422 and Tibbets Wick Road are open to traffic again. However, it could take four to five hours to clean up a chemical spill that forced an evacuation in Weathersfield Township.

People who were evacuated from their homes in the area at around 7:30 a.m. Monday were allowed to return at around 11 a.m.

Fire Cheif Ken Boring tells 21 News that 23 homes, the McDonalds, and Scenna Family Restaurant were evacuated after hydrochloric acid was found leaking from a tank at Predator Trucking North State Street.

However, it is now known that the truck that was leaking is not owned by Predator Trucking, it is owned by Pro Frac, a company operating out of Texas.

According to Pro Frac's website, they have been operating in the Marcellus and Utica Shale areas since October 2016.

The manager at the nearby McDonalds told 21 News she expects to open again about a half hour past noon.

Traffic was blocked off on Route 422 from Tibbets Wick Road to the Golf Dome as Hazmat worked to contain the leak using sandbags.

Boring says about 1,000 gallons of acid leaked from a corroded valve on the 5,000-gallon tank. 

Cleanup crews from Cleveland and Pittsburgh have been dispatched to the scene. It's expected to take four to five hours to clean up the spill, according to the chief.

Boring said no one was injured.  He says the only way the acid can be harmful is if someone inhales the vapor.

According to the EPA, hydrochloric acid is corrosive to the eyes, skin, and mucous membranes. Acute inhalation exposure may cause coughing, hoarseness, inflammation, and ulceration of the respiratory tract, chest pain, and pulmonary edema in humans.

Acute oral exposure may cause corrosion of the mucous membranes, esophagus, and stomach, with nausea, vomiting, and diarrhea reported in humans. Dermal contact may produce severe burns, ulceration, and scarring.

Some drivers told 21 News that they have tried several different routes, but were unable to get to their jobs on time.