The level of contaminant in drinking water below which there is no known or expected risk to health. These bacteria are not usually in themselves harmful, but the presence in large numbers indicates the possible presence of disease-producing organisms. Fecal coliform and E. Coli are bacteria whose presence indicates that the water may be contaminated with human or animal wastes. Germs in these wastes can cause diarrhea, cramps, nausea or fatigue. This test can provide useful information about water quality.
Humic acids are present in all natural water used as sources of drinking water.
Chloroform is one of the most common THM's formed in this type of reaction. The MCL for Trihalomethanes is 80 ppb. The maximum contaminant level for coliform and fecal coliform is 0. To confirm this count, resampling was done on August 21,1998. The sampling site was resampled along with service connections located on either side of the of that site.