Consumer Microbiology - Forms and Available Tests

Submission Form:
Water Bacteriology Form No. G-19 (PDF 33kb viewing information)

Available Tests:
Note: Only drinking water testing is available to the general public. All other testing must be submitted through Public Health Sanitarians.

See Frequently Asked Questions for submission guidelines

 

Water Testing:

TEST

METHOD

ACCEPTABLE RESULTS

FREQUENCY

Drinking Water

Colilert

No Coliforms found

At least once every three years, or whenever well or system repairs are made

Bay Water

A-1 modified method

<14/100 mL

As needed upon request by Public Health Sanitarians

Dairy Water

Multiple tube fermentation

Colilert

<1.1/100 mL

<1.0/100 mL

As needed upon request by Public Health Sanitarians

Milk Testing:  ^ Top

TEST

METHOD

ACCEPTABLE RESULTS

FREQUENCY

Standard Plate count

PAC - pasteurized

PAC - producer

PAC - commingled

20,000/mL

100,000/mL

300,000/mL

At least four times during any consecutive six month period.

Coliform Count

PCC/HSCC

<10/mL

As requested by Public Health Sanitarians only

Growth Inhibitors

Charm SL-3

Delvotest

Charm SLBL

Charm Tetra-SL

Charm Sulfa-SL

Not Found

As requested by Public Health Sanitarians only

Somatic Cell Counts

OSCC

DMSCC

Cow:  750,000/mL
Goat: 1,5000,000/mL

As requested by Public Health Sanitarians only

Alkaline Phosphatase

Advanced Fluorometer

Not Found

As requested by Public Health Sanitarians only

Freezing Point

Cryoscope

<-0.525º Horvet

As requested by Public Health Sanitarians only

Pathogens

BAX system

BAM

VIDAS

Not Found

As requested by Public Health Sanitarians only

Aflatoxins

Charm SL-Aflatoxin

<500 ppt

As requested by Public Health Sanitarians only

Food Testing:  ^ Top

Food is tested only upon request from DSHS, local city county health departments, and hospitals. All food testing is done by standard methods following the Bacteriological Analytical Manual, FDA, 8th Edition.

TESTS

METHODS

 

  • Campylobacter spp.
  • Cronobacter spp.  
  • Escherichia coli O157:H7 
     
  • Non-0157 STEC Organisms (026, 045, 0103, 0111, 0121, and 0145)
  • Listeria monocytogenes
  • Salmonella spp.
  • Shigella spp.
  • Staphylococcus aureus enterotoxin  
  • Vibrio cholerae, Vibrio parahaemolyticus, Vibrio vulnificus
  • Yersinia enterocolitica

 

 

  • BAX system
  • Traditional Culture Methods (BAM)
  • VIDAS