Several factors can indicate if your property is at risk of backflow contamination. Properties with irrigation systems, fire sprinkler systems, or boilers are at higher risk. Additionally, if your property is located downhill from potential sources of contamination, such as chemical storage facilities or industrial sites, the risk increases. Similarly, properties with outdated or poorly maintained plumbing systems are more susceptible. Consulting with a qualified plumber or backflow prevention specialist can help assess your property's risk and recommend appropriate preventive measures.