Coliforms

http://www.semp.us/publications/biot_reader.php?BiotID=109

Coliform Bacteria Bacterial indicators Bacillus

Gram-negative Non-spore

forming Ferment lactose

Citrobacter Enterobacter Klebsiella Escherichia

Escherichia coli

Good Strains Vitamin K

Bad Strains

Bad Strains Shiga toxin-

producing E. coli (STEC)

O157:H7 O111:H8 O26:H11 O103:H2

Haemolytic uremic syndrome (HUS)

Bacteriological Water Analysis NC Division of Water

Quality (NCDWQ) Surface Water

Standards REDBOOK

MFTTC: 200/100 mL

14/100 mL

Water Quality Index Fecal coliform measurements:

Membrane Filtration Measures both Total Coliform and E. coli

Multiple-Tube Fermentation Most Probable Number (MPN)

Membrane Filtration using mColiblue