Source of Nitrite: Nitrite (N2O-) is a nitrogen-containing chemical similar to nitrate. Nitrogen in fertilizers, animal waste from farms and decaying plant materials can introduce nitrite into groun...
Cryptosporidium in Water
Source of Cryptosporidium: Cryptosporidium is a single-celled protozoan parasite. Outbreaks occur when water sources are contaminated with human feces. The parasite is highly...
E. coli in Water
Source of E. coli: E.coli (Escherichia coli) is a group of naturally-occurring bacteria. Some strains are harmless while others affect human health. These come from animal waste that...
Hydrogen sulfide
Source of Hydrogen sulfide: Hydrogen sulfide (H2S) is a colorless gas with a “rotten egg” smell. It is sometimes called sewer gas or sulfur water. Certain bacteri...
Source of Legionella: Legionella (Legionnaires disease) is a respiratory disease caused by bacterial infection. The bacteria are found in nature but can be found inside hot water heaters and large p...
MTBE in Water
Source of MTBE: MTBE (methyl tertiary-butyl ether) is a volatile, clear, liquid used as a gasoline octane booster. MTBE can get into drinking water when gasoline is repeatedly spilled...