Organic and inorganic chemicals, disinfectants and disinfectant byproducts and microorganisms are just some of the contaminants that come through our tap. Our municipal water systems are strictly regulated by the Environmental Protection Agency (EPA). They are also required to publish the what contaminants they find in the water they deliver their customers. Here is a guide to some of the more common contaminants that are found in your water, their source and potential health effects.
Contaminant |
Source |
Potential Health Effects |
|---|---|---|
Asbestos |
Decay of asbestos; cement in water mains; erosion of natural deposits | - Increased risk of developing benign intestinal polyps |
Benzene |
Discharge from factories; leaching from gas storage tanks and landfills | - Anemia - decrease in blood platelets - increased riskof cancer |
Chlordane |
Residue of banned termiticide | - Liver or nervous system problems - increased risk of cancer |
Chlorine (as Cl2) |
Water additive used to control microbes | - Eye/nose irritation - stomach discomfort |
Cryptosporidium |
Human and animal fecal waste | - Gastrointestinal illness (e.g., diarrhea, vomiting, cramps) |
Giardia |
Human and animal fecal waste | - Gastrointestinal illness (e.g., diarrhea, vomiting, cramps) |
Lead |
Corrosion of household plumbing systems; erosion of natural deposits | Infants and children: - Delays in physical or mental development - children could show slight deficits in attention span and learning abilities Adults: - Kidney problems - high blood pressure |
Lindane |
Runoff/leaching from insecticide used on cattle, lumber & gardens | - Liver or kidney problems |
Trihalomethanes(TTHMs) |
Byproduct of drinking water disinfection | - Liver, kidney or central nervous system problems - increased risk of cancer |
2,4-D |
Runoff from herbicide used on row crops | - Kidney, liver, or adrenal gland problems |
Source: EPA
If you’re concerned about the contaminants in your local water supply, we encourage you order a Free Water Quality Report to get a more detailed analysis of what is coming out of your tap. The results are emailed directly to you and our expert water consultants are always available to discuss any questions or concerns you have with your report.