Water Quality

Well Water

A large majority of homes in Grand County are served by a drinking water private well. Private wells health and safety is the responsibility of the homeowner. EPA and CDPHE recommend testing your drinking well at least annually for coliform bacteria and nitrates. More information on private wells drinking water and your health can be found at CDPHE Drinking Water Private Wells. 


Colorado Department of Public Health and Environment (CDPHE) lab processes drinking water samples from Grand County. Follow the steps below.

Two options:

  1.  Grand County Environmental Health can facilitate assisting with getting your well water tested. First, we need to determine what you would like your water to be tested for. Grand County Public Health offices have the sample bottles for testing for the presence/absence of coliform bacteria only. If you are interested in other tests we can help order the correct sample bottles from CDPHE (free of charge). We will work with the homeowner a time to drop off their water sample and get the sample to CDPHE's lab in Denver that day (delivery free of charge). CDPHE currently charges $20 for a coliform bacteria test only. 
  2. Work directly with CDPHE with having the sample bottes sent to your home and pay to overnight the samples on your own. Please reference CDPHE's Homeowner Water Testing page for more information on ordering and submission. Choose Water Testing Package. If you've never had your well tested before, we recommend the "General Colorado Package" which tests for the eight most common problems associated with Colorado groundwater. The "Deluxe Package" is more expensive but provides more information. 

Grand County Environmental Health staff is available to assist in either of the options listed above and are experienced to help provide information interpreting your results. Send us an email at EHinfo@co.grand.co.us or give us a call at (970)-725-3288 (#7) for more information about testing your well and to get sample bottles. More information on results from CDPHE can be found at Interpreting your results. For further information on well water testing and results please reference Well Owner's Water Testing and Results. 

Well Permitting

Permits for wells in Grand County are obtained through the Colorado Department of Natural Resources in Denver. For more information review the Beginner's Guide to Well Permits or visit the DNR's website.

Well Inspections

It is recommended to regularly inspect your well to ensure it is functioning properly and not exposed to external sources of contamination. 

1. Inspect the wellhead multiple times throughout the year. Look for any cracks, holes, or other damage that could allow external sources of contamination into the well. If you find damage on your wellhead, get it repaired as soon as possible to prevent contamination of your well water.

2. Every 5 years, have your entire well system inspected by a licensed well contractor. They will be able to look at parts of the system like the pump, storage tank, pipes, etc. that you are unable to inspect yourself. 

3. If you purchase a house and cannot find inspection records for the well, get it inspected as soon as possible by a licensed well contactor to ensure you are drinking clean water in your new home. 

A lender may require that a well be inspected for the purposes of real estate transaction. These inspections include testing of the water for coliform bacteria and nitrates as well as a visual inspection of the well head and surrounding area.

For more information on private wells check out the following links:

Division of Water Resources Well Construction and Inspection Licensed Contractors

Well Owner Maintenance Practices

OWTS (Onsite Wastewater Treatment System)

Grand County's department of Community Development oversees the permitting process of OWTS and the keeping of records, more information can be found at Grand County Septic Permit Information.

Professionals recommend having your system inspected and pumped generally every 3-5 years. For more information on proper maintenance of your system for longevity please see homeowner info found at Colorado Professionals in Onsite Wastewater.