Are Above-Ground Storage Tanks More Vulnerable to Contaminants?

Risks of Above-Ground Storage Tanks

Above-ground storage tanks are more susceptible to contamination from various sources such as bird droppings, leaves, and debris. This can lead to the growth of bacteria, algae, and other microorganisms that can compromise the quality of the stored water. For instance, a study has shown that above-ground storage tanks can experience up to 50% more contamination risk compared to their buried counterparts.

Protection from Contaminants

To mitigate the risks associated with above-ground storage tanks, it’s essential to implement proper protection measures. This can include installing a first flush device, which allows the initial flow of contaminants to be diverted away from the storage tank, reducing the risk of bacterial contamination. Additionally, incorporating a sedimentation chamber can help remove particulate matter and other contaminants from the rainwater before it enters the storage tank.

Best Practices for Above-Ground Storage Tanks

Best practices for above-ground storage tanks include regular maintenance and inspection to identify any potential contamination sources. This can include cleaning the storage tank, checking for any signs of damage or wear, and ensuring that the storage tank is properly screened to prevent debris and other contaminants from entering the tank. By following these best practices and implementing the necessary protection measures, above-ground storage tanks can be a safe and effective means of collecting and storing rainwater for non-potable purposes.