Arizona Lithium Ltd. (AZL) on July 15 said it discovered a new lithium formation at the site of its Prairie Lithium project in Saskatchewan, Canada’s Williston Basin.

The discovery was made by an exploration well drilling in the Souris River Formation, which sits directly beneath the Duperow Formation. Samples of brine from the Souris River indicate a lithium concentration of 86 milligrams of lithium per liter (mg/L), the company said in a news release.

The exploration well was converted to a Duperow production well and was pumped at a stable rate of 500m3 per day. It produced about 2,400 m3 of brine before it was shut in for a build-up test to monitor reservoir pressure response, Arizona Lithium said.

Location map and representative lithium concentrations from Arizona Lithium’s test wells. (Source: Arizona Lithium)
Location map and representative lithium concentrations from Arizona Lithium’s test wells. (Source: Arizona Lithium)

Arizona Lithium Managing Director Paul Lloyd called the exploration results fantastic.

“The discovery of the Souris River lithium in Saskatchewan highlights the exploration upside that exists across the project. …This discovery will result in future wells by AZL and other lithium companies in the province, targeting this deeper formation and providing information to increase our large resource,” Lloyd said.

Additional wells will be drilled into the Souris River and Dawson Bay at Pad #2 and Pad #3 as part of the company’s drilling campaign, the company said.