Residents say Kerr County’s use of CodeRED alerts was sporadic and inconsistent. Local officials have not answered questions about when and how they utilized the system, which has been in place since 2009.

Kerr County, Texas, lacked a “last mile” warning mechanism that could have saved residents before the deadly floods devastated the area, including a children’s summer camp, killing more than 80 people.

State and local officials in Texas have come under scrutiny over the lack of sirens in place to warn people of impending flash flooding.