Total Coliform in Drinking Water: Health Risks, Sources, and How to Remove It
Total Coliform is a microbial contaminant that can be found in drinking water. Due to its potential health risks, the EPA has set its Maximum Contaminant Level (MCL) at zero presence. Monitoring for this category of contaminant is a critical step in ensuring public water safety.
Health Effects
The presence of Total Coliform in water is a key indicator that potentially harmful bacteria may also be present. While these indicator bacteria themselves may not always cause disease, they signal a vulnerability where other pathogens could exist. Ensuring water is free from these organisms is important for preventing exposure to microbial risks.
How Total Coliform Gets Into Tap Water
This microbial contaminant enters the water supply from several environmental sources. It commonly originates from human and animal waste, soil erosion, and decaying vegetation. These materials can wash into surface water or seep into groundwater sources.
How to Remove Total Coliform From Your Water
Effective treatment methods for addressing Total Coliform include disinfection, UV treatment, and filtration. These systems are commonly utilized in both municipal and residential settings to target and remove microbial contaminants. Proper maintenance of these treatment technologies ensures water remains safe for consumption.
Should You Test Your Water?
To check for Total Coliform, you can review your local consumer confidence report or search for your utility on WaterQ. Private well owners should perform regular testing due to the acute nature of microbial contamination risks. You can also look up your local water system on WaterQ or check the Total Coliform data page for reported levels in your area.
Frequently Asked Questions
Is Total Coliform dangerous in drinking water?
Total Coliform acts as an indicator that potentially harmful bacteria could be present in the water supply. Because it signals the potential presence of pathogens, any detection is treated seriously. Ensuring zero presence of these indicator organisms is vital for maintaining safe drinking water.
How does Total Coliform get into tap water?
It enters the water supply through human and animal waste, soil erosion, and decaying vegetation. These contaminants can be carried into water sources by runoff or system failures.
How can I remove Total Coliform from my water?
You can treat water to remove or inactivate Total Coliform using disinfection, UV treatment, and filtration. Implementing these treatment methods helps ensure microbial contaminants are neutralized.
Source: EPA National Primary Drinking Water Regulations and WaterQ National Database. For more contaminants, visit our contaminant library.