Planning to build your dream home in El Paso County, Colorado? From the rolling plains of Falcon to the pines of Black Forest, finding the perfect lot is only half the battle.
If you aren’t connecting to a city water line, your success hinges on one critical factor: drilling a successful water well. Unlike city water, your well taps directly into ancient underground aquifers—meaning your water quality and quantity depend entirely on which geological layer you hit and how deep you have to go.
In this guide, we’ll break down the Denver Basin aquifers, well permitting requirements, drilling costs, and how to protect your investment in the Pikes Peak region.
Understanding El Paso County’s Denver Basin Aquifers
El Paso County sits atop the Denver Basin, a massive underground water system formed millions of years ago. When researching land, you’ll encounter names like the Dawson, Denver, Arapahoe, and Laramie-Fox Hills aquifers. Each layer sits at different depths and produces varying water quality and flow rates.
Before you fall in love with a piece of land, use the Colorado Division of Water Resources Well Permit Search Tool or DWR Map Viewer to check nearby well logs. These public records reveal two crucial pieces of information:
- Aquifer depth – How far down drillers had to go to hit water
- Overburden – The amount of earth and rock between the surface and the water-bearing layer
This depth is the number one factor in predicting your drilling costs. A well hitting water at 300 feet costs dramatically less than one requiring 600+ feet of drilling through granite.
What Happens If You Don’t Hit Adequate Water?
While most of El Paso County has reliable groundwater, some parcels require drilling deeper than expected—or even a second well attempt. Granite formations can block access to aquifers, and some areas simply have lower yields than others. This is exactly why checking neighboring well logs before purchase is critical. If surrounding properties needed 800-foot wells, expect the same for yours.
Colorado Well Permits: What You Need to Know
You cannot legally drill a well in Colorado without a permit from the Division of Water Resources (DWR). The permit process typically takes 4-6 weeks, so factor this into your construction timeline.
Residential Wells (Household Use Only): Most lots under 35 acres are restricted to indoor household use—drinking, cooking, bathing, and laundry. No outdoor watering allowed.
Domestic Wells: Larger parcels may qualify for “Domestic Use” permits, which include one acre of lawn/garden irrigation and livestock watering. Always verify your specific water rights during your due diligence period before closing on land.
The Critical 100-Foot Separation Rule
One of the most important aspects of your El Paso County site plan is the placement of your well and septic system. Colorado law requires your well to be at least 100 feet away from any septic leach field to prevent groundwater contamination.
On smaller lots, this 100-foot buffer can significantly limit where you can build your home. Work with an experienced site planner early to ensure your well, septic, and home footprint all fit properly. Fixing a layout mistake after construction begins can cost tens of thousands of dollars.
How Much Does It Cost to Drill a Well in El Paso County?
A complete well installation in El Paso County typically ranges from $15,000 to $45,000, depending on:
- Depth to water (the deeper you drill, the higher the cost)
- Rock density (drilling through granite costs more than sedimentary layers)
- Pump requirements (deeper wells need more powerful pumps)
- Casing and materials
This total investment includes DWR permit fees, drilling, steel casing, the submersible pump system, pressure tank, and basic hookup to your home.
Budget on the higher end if neighboring wells exceed 500 feet in depth.
Required Water Testing & Compliance
Before you can occupy your new home, your well must pass two critical tests:
1. Flow Test (Drawdown Test): Proves the well can produce adequate gallons per minute (GPM). Most homes need a minimum of 5 GPM to support normal household use. If you plan to irrigate or have high water demands, aim for 10+ GPM.
2. Water Quality Test: A CDPHE-certified laboratory must analyze your water for bacteria, nitrates, metals, and other contaminants. Some Denver Basin aquifers produce naturally hard water or elevated mineral content—this doesn’t mean the water is unsafe, but you may need a filtration or softening system.
Trusted Well Drilling & Water Vendors in El Paso County
Well Drilling Companies
- Frontier Drilling – (719) 495-2002
- Independent Well & Pump – Contact for availability
- M-S-H Drilling – Contact for availability
Water Filtration & Treatment
- Boulder Water Well Service & Supply – (303) 442-1911 (Serves El Paso County from Lafayette)
- Crystal Clear Water – (719) 495-2122
Water Testing Laboratories
- El Paso County Public Health Laboratory – Local bacteriological and inorganic testing
- Colorado Analytical – CDPHE certified, Commerce City & Lakewood locations
- List of CDPHE Certified Labs – Find additional certified testing facilities
Frequently Asked Questions
Can I use well water for a swimming pool? With a Household Use permit, no. Pool filling is considered outdoor irrigation. With a Domestic Use permit on larger acreage, possibly—but verify with DWR.
What if my well runs dry? Wells in the Denver Basin rarely run dry, but during drought years or with overuse, water levels can drop. Most well systems include low-water cutoff switches to protect your pump. If yields decrease, you may need to deepen the well or drill a second one.
Do I need a water softener? Many Denver Basin aquifers produce hard water (high mineral content). While not harmful, hard water causes scale buildup in pipes and appliances. Most homeowners install a softener or filtration system after moving in.
How long does a well last? A properly maintained well can last 30-50+ years. The pump typically needs replacement every 15-20 years, depending on use.
Ready to Find Land with Proven Water Potential?
Drilling a well is one of the biggest investments in building on rural land—and one of the riskiest if you don’t do your homework. Our team has helped dozens of families successfully navigate El Paso County’s rural property market.
We’ll pull well logs for neighboring properties, review water rights restrictions, verify adequate setbacks for well and septic placement, and ensure your dream property won’t turn into an expensive dry hole.
Contact Scott at Acquire Homes today or schedule your land consultation to find Colorado property that’s protected from the ground up.
