Sangre De Cristo Laboratory
CO certified
Homeowner samples
- Arsenic
- Coliform Bacteria
- Lead
- Nitrate / Nitrite
Colorado county well guide
Well Water in Conejos County, CO: Testing, Contractors and Rules
of households on a private well
Share on wells, county vs state
1licensed contractors serve the county
20 mito the nearest certified lab, Sangre De Cristo Laboratory
Nostatewide test required when a home is sold
Wells are the exception in Conejos County: about 0 households, under 1% of the county, are on a private well. Being in the minority means less local help, so this page gathers what applies.
Local rules for wells in Conejos County
Every well in Conejos County needs a permit from the Colorado Division of Water Resources before drilling, and only licensed contractors may drill or set the pump. Water quality is not regulated for private wells, so testing is entirely the owner’s call.
At a glance
Water test for a new wellNot required statewide
A DWR well permit is required before drilling and contractors must notify DWR before construction, but no water quality test is required by the state.
Water test when a home is soldNot required statewide
No statewide requirement. Lenders often require a test; some counties recommend one at transfer.
What the state recommends
CDPHE recommends yearly testing for coliform bacteria and nitrate, and a broader panel (metals, uranium, radon, fluoride, hardness) every few years. Colorado groundwater commonly has naturally occurring uranium, radon and fluoride.
Free or low-cost testingAvailable
Colorado offers a free PFAS testing program for private wells. Several county health departments (Weld, El Paso, La Plata, Mesa, Pueblo, Routt, Gilpin, Northeast Colorado) run certified labs that accept homeowner samples.
Getting your water tested near Conejos County
The nearest certified lab is Sangre De Cristo Laboratory in Alamosa, about 21 miles from the county center, and it accepts samples from homeowners. Mail-in kits fill the gap for anything it does not run.
1 certified labs within 40 miles
Licensed well contractors serving Conejos County
Licensed help in Conejos County includes Rocky Mountain Waterworks LLC. Every listing was matched to the Colorado license list; the “verify” link on each profile opens the state lookup.
1 licensed contractors
Rocky Mountain Waterworks LLC
Verified license
License 1263 Active
- Pump Installation
- Pump Repair
- Well Drilling
Well depth and water chemistry
Well depth and water chemistry in Conejos County follow the rock underneath it. Depth varies across the county; the state well record search shows logs for nearby wells.
Typical well depth
Varies by location. Check the state well record search for logs of nearby wells.
Contaminants to test for
- Uranium
- Radon
- Fluoride
- Nitrate
- Hardness
- Coliform bacteria
- Arsenic (some basins)
Neighboring counties: Alamosa County, Costilla County, Rio Grande County, Saguache County.
What well work costs in Conejos County
Basic bacteria and nitrate test$25 to $75lab fee, homeowner sample
Full panel lab test$150 to $400metals, VOCs, radiologicals
Well inspection$250 to $550flow, pressure, visual, water test
Submersible pump replacement$1,200 to $4,500parts and labor
Pressure tank replacement$400 to $1,200installed
Whole-house treatment system$800 to $6,000softener, iron filter, UV, RO
New well drilled$5,500 to $25,000about $25 to $65 per foot
Shock chlorination$80 to $300or about $20 as a DIY job
National ranges from published 2025 to 2026 contractor pricing. Local quotes vary with depth, access and materials.
Questions Conejos County well owners ask
How many homes in Conejos County are on a well?
About 0, or 0% of households, based on Census housing data and state well surveys. The share is highest outside the towns with public water.
Where is the closest certified lab to Conejos County?
Sangre De Cristo Laboratory in Alamosa, about 21 miles away. It accepts homeowner samples.
Do I need a permit to drill a well in Conejos County?
Yes. A permit from the Colorado Division of Water Resources is required before any drilling.
What does a well test cost near Conejos County?
A bacteria and nitrate test runs $25 to $75 at most certified labs; a full panel with metals is $150 to $400. County health department labs charge less than commercial labs, and PFAS testing is free through the state.