Water testing in Colorado
Lowest price: Free, Colorado Department of Public Health and Environment (CDPHE).
PFAS Testing and Assistance Program (PFAS TAP)
Free
free
- PFAS
- PFHxS
- PFNA
- GenX
- PFBS
Sign up online and Cyclopure mails a sampling kit; mail the sample back with the included prepaid shipping label.
Anyone with a private well in Colorado; public water system customers are not eligible
Checked October 1, 2026. Report a change
Weld County Free Well VOC Testing Program
Free
no charge, every six months
- Volatile organic compounds (VOC)
Call the Weld County laboratory to arrange sampling and complete the Notice of Public Disclosure Form.
Weld County residents whose primary drinking water source is a private well; requires completing a Notice of Public Disclosure Form
Checked October 1, 2026. Report a change
State Public Health Laboratory Water Testing
$20
- Bacteria
- E. coli
- Heterotrophic plate count
- Legionella
Fill out the Private customer water testing bottle order form online and the lab ships sterile sample bottles via FedEx at no cost.
Non-water providers (well owners, business owners, real estate agents) who do not follow a water testing compliance schedule
- CDPHE Lab - Sample Receiving, 8100 E Lowry Blvd., Denver · 303-692-3490
Checked October 1, 2026. Report a change
Larimer County Department of Health and Environment Drinking Water Sampling
$25
- Bacteria
- Nitrate
- Lead
- Copper
- Iron
Get an approved sampling bottle from the Department, collect the sample, and drop it off the same day at Fort Collins or Loveland on a Tuesday.
Private well owners in Larimer County; get a sampling bottle from the Department first
- Fort Collins office, 1525 Blue Spruce Dr, Fort Collins · 970-498-6775
- Loveland office, 200 Peridot Ave, Loveland · 970-498-6775
Checked October 1, 2026. Report a change
El Paso County Public Health Water Testing Laboratory
$53
- Bacteria
- Nitrate
- Fluoride
- Chloride
- Sulfate
- +4 more
Pick up a sample kit from EPCPH Laboratory at the Citizens Service Center, collect the sample yourself, and return it to the lab.
Private well owners, real estate agents, homebuyers in El Paso County; EPCPH does not provide water collection services
- El Paso County Public Health, Citizens Service Center, 1675 W. Garden of the Gods, Colorado Springs · 719-578-3199
Checked October 1, 2026. Report a change
CSU Soil, Water and Plant Testing Laboratory, Household Drinking Water
$87
- pH
- Soluble salts (EC)
- TDS
- Hardness
- Nitrate
- +8 more
Collect a sample in a clean plastic bottle, fill out the Water Submission Form, and mail or drop off the sample with payment.
Homeowners, agricultural producers, consultants, government agencies; fee-based service open to the public
- CSU Spur Soil, Water and Plant Testing Lab, 4780 National Western Drive, Room T-316, Denver · 970-491-5061
Checked October 1, 2026. Report a change