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Main Phone Line
(970) 248-6900

Regional Lab (Water Quality)

water poured in to glass

What We Do

Our water quality program provides bacterial testing for drinking water and irrigation water samples.

We offer water testing in our Regional Lab Monday through Thursday. The lab is certified through the Colorado Department of Public Health and Environment as in compliance with the criteria and procedures of the EPA Manual for the Certification of Laboratories analyzing drinking water.  View our certificate here if you need it for auditing purposes.

Regional Water Lab Hours

Monday – Thursday from 8 a.m. to 4:30 p.m.

Please note, the lab is closed on all federal holidays and does not accept water samples the business day before a holiday (or the Thursday before a holiday that falls on a Friday).

Samples can also be shipped overnight to:

MCPH Regional Lab
P.O. Box 20,000
Grand Junction, CO 81502-5033

For FedEX and UPS:

MCPH Regional Lab
510 29 1/2 Road
Grand Junction, CO 81504

Contact Us

Phone:  970-248-6999

Email: water.quality@mesacounty.us

Resources and Forms

Water Tests

  • Coliform – Present/Absent with E. coli ($20)
  • E. coli – Enumerated ($22)
  • Heterotrophic Plate Count ($24)

Payment is due at time of service. We accept cash, check, or credit card.

Click here for lab and testing forms.

Information For Realtors

Buying or selling a home can be a lengthy and confusing process. For homes with a private well, many lending institutions require the well to pass a water quality test before the loan will be approved. Sometimes, these requirements are not known until the last minute and testing can cause a delay for the seller or the buyer. Having the well water tested reassures the buyer, and the value of the home is increased when there is safe drinking water available.

The Regional Lab offers affordable testing with results available the following day via email to all involved parties, per request.

Request a Water Test Kit


The Regional Lab offers affordable testing with results available the following day via email to all involved parties, per request.

Private Wells and Cisterns

MCPH recommends private wells be tested seasonally for bacteriological contaminants.

The Coliform test will show whether or not your well or cistern water contains bacteria.

If polluted groundwater is consumed, it could cause illness. Groundwater pollution can be caused by seepage through landfills, failed septic tanks, underground fuel tanks, fertilizers and pesticides, as well as runoff from urban areas. Testing your water ensures the health of you and your family.