Water Lab

EPA certified water laboratory-testing public/private drinking water and public pools/spas for harmful bacteria.

Thank you for working with the Teton County Lab to get EPA the correct lab results. At the end of each month you should go into the EPA data base at https://sdwisdww.epa.gov/DWWR8WY, enter your PWSID and then look for your sample results under Coliform/Microbial Sample Results in the menu on the left. 
It is the responsibility of the Public Water System to make sure EPA has your sample results.

EPA Region 8 (Mountains and Plains), serving Colorado, Montana, North Dakota, South Dakota, Utah, Wyoming and 28 Tribal Nations.

This fact sheet provides basic information for private well owners regarding bacteria in their well water.

Click here for Drinking Water Sampling Instructions.

Drinking Water Testing Schedule

Every Monday and Tuesday excluding County Holidays. Samples must be received before 2 p.m.

Please reference the 2023 Drinking Water Testing schedule (PDF).

Pool & Spa Testing Schedule

Pool and spa samples are accepted every Tuesday excluding County Holidays. Samples must be received before 12 p.m.

There will be no Pool and Spa testing on weeks where County Holidays fall on a Tuesday or Thursday. 

Please reference the 2023 Pool and Spa Testing Schedule (PDF).

Water Lab Forms

Bacteriological Water Analysis Requisition
Boil Water Order Fact Sheet (PDF)
Pool/Spa Log Sheet (PDF)
Pool/Spa Sample Collection Instructions (PDF)
TNTC Protocol (PDF)

Water Lab Fee Schedule

  • $20 - Drinking Water Testing
  • $20 - Pool and Spa Testing