SHREVEPORT, La. (AP) — Shreveport water crews will soon be testing chlorine levels at new locations around the city to meet new emergency water safety rules.

Louisiana's health department issued an emergency rule this week requiring that water systems in the state maintain a higher disinfectant level and increase testing locations by 25 percent starting Feb. 1. The rule comes after the discovery of a deadly amoeba in public water systems in DeSoto and St. Bernard parishes.

Shreveport officials say they expect to begin testing at new locations as early as next week.