Mandatory Well Water Quality Testing Requirements

Mandatory Well Water Quality Testing Requirements

Two policies have been adopted by the Jefferson County Board of Health that require well water quality test results as part of the OWTS permitting process. Links to the policies are provided below.

Indian Hills / Parmalee Gulch Area Policy 

For all OWTS permit applications in the Indian Hills / Parmalee Gulch Area the policy states

A sample of well water from the well serving the property, analyzed for total coliform bacteria and nitrates (NO3-N), is required before a construction, repair, or a Use (transfer of Title) permit is issued. Results of the analysis must be provided to JCPH. No water analysis is required for property that does not have a well and is served by the Indian Hills Water District. 

Please Note: For Use Permits, the test results must be submitted along with your use permit application. A Use Permit will not be issued until the test results have been received. For all other OWTS permits, final approval of your permit will not be issued until the well water quality test results have been submitted to the Department. 

Policy for Parcels Lawfully Created Prior to June 3, 1966* 

For a permit to construct a new OWTS on a vacant lot, the policy states: 

As a condition of the OWTS permit, the applicant is required to submit to a certified laboratory, a sample of raw, untreated water from the private well serving the property, analyzed for total coliform bacteria and nitrate as nitrogen. Results of the analysis must be provided to the Department prior to final approval of the OWTS permit. No water analysis is required for property that does not have a well and is served by a public water system, or which the Environmental Health Services Division has determined should be exempt for good cause. (Rev. to clarify 10/17/23). 

*Please contact Jefferson County Planning and Zoning Department to determine the date of parcel legality.  

To satisfy the well water quality test standards you must submit a raw water sample from the well to a State certified water testing laboratory [external link] -- for a list of State certified water testing labs. The sample must be tested at minimum for total coliform presence/absence, e. coli presence/absence, and nitrate as nitrogen. 

Please check the CDPHE 2023 Lab Fees Website for current prices. JCPH currently recommends the Annual Colorado Package to meet this requirement.  To order a water bottle test kit from CDPHE, complete the bottle order form at: Private customer water testing bottle order form (google.com). Once the bottle order form is complete, CDPHE will ship the bottle kit to you. The bottle kit includes the instructions for collecting the sample. 

For more information about the well test requirement, please email [email protected] or call 303-232-6301. 

Policy OWTS Design Standards 

It is important to note, in addition to the well water quality test requirements, these policies also contain OWTS design standards that must be met before JCPH can issue an OWTS Permit. If your property is affected by these policies, in addition to meeting the minimum standards outlined in the 2018 Jefferson County Onsite Wastewater Regulations, the OWTS design must also meet the applicable policy standards. 

Additional Well Water Quality Resources