According to the Center for Disease Control 99.99% of e.coli will become inactive after exposure to 0.50 PPM chlorine for less than 1 minute.
A well designed water treatment program and diligent implementation of the plan can prevent waterborne E.coli in irrigation water. Call us, we can help. The per acre cost of a water treatment program is less than the cost of a product recall.
https://www.cdc.gov/safewater/effectiveness-on-pathogens.html