Appearance can be deceiving. If your water comes from a private water supply, you are responsible for monitoring its quality. One of the standard methods of checking water quality is a test for ...

Private well owners in 8-county area eligible for kits sent to them Free water-test kits now are available for delivery to qualifying private well users in southeastern Minnesota. Minnesota Department ...

It is differential because lactose fermenters form colonies that are dark in color and sometimes have a green ... serves as a source for stains to confirm the Gram-negative, non-spore-forming nature ...

Coliform analysis by the P-A test is based on 2 premises: 1) no coliform bacteria should be present in 100 ... This initially colorless compound can be hydrolyzed by the E. coli β-glucuronidase enzyme ...