What is that Rotten Egg Smell In Your Water?
Hydrogen Sulfide : CT Water containing hydrogen sulfide usually does not pose a health risk, but does give water a nuisance “rotten egg” smell and taste. Water supplies in Connecticut with as little as 1.0 ppm (part per million) hydrogen sulfide are corrosive, may tarnish copper and silverware, and occasionally release a black material that stains laundry and porcelain.
Hydrogen sulfide is formed by sulfur bacteria that may occur naturally in CT water. These bacteria use the sulfur in decaying plants, rocks, or soil as their food or energy source and as a by-product produce hydrogen sulfide. The sulfur bacteria do not cause disease, but their presence in water can cause a bad taste or odor.