Colorado Well Finder › Wells by county › Douglas County › Castle Pines
Well records around Castle Pines show a distinctly deep-water area. Among permitted wells within 5 miles, the median reported depth is 500 feet, and the middle half runs from 285 to 670 feet. Most reported wells produce useful household quantities, but drilling depth, static water level, and site access still make a large difference to the final bid.
This page uses Colorado Division of Water Resources permit records and local cost modeling for Denver Basin sedimentary bedrock. Treat the numbers as planning information, not a guarantee for a particular lot. Nearby Castle Pines Village, Stepping Stone, Lone Tree, Meridian Village, Sierra Ridge, and Sedalia can help provide local comparison points, but the well on the parcel you are buying is the most important evidence.
Figures are computed from Colorado Division of Water Resources permit records for permitted wells within 5 miles of Castle Pines. Not every permit reports every field; each statistic uses the wells that report it.
| Depth statistic | Feet |
|---|---|
| 25th percentile | 285 |
| Median | 500 |
| 75th percentile | 670 |
| 90th percentile | 1,210 |
| Deepest on record | 3,220 |
| Aquifer named on permits | Wells |
|---|---|
| unnamed / fractured-bedrock aquifer | 1,078 |
| Lower Dawson | 471 |
| Denver | 262 |
| Yield statistic | gpm |
|---|---|
| 25th percentile | 10.0 |
| Median | 12.0 |
| 75th percentile | 15.0 |
| Median depth to water | 390 ft |
| Median water level by decade | Depth to water |
|---|---|
| 1970s | 245 ft |
| 2010s | 480 ft |
| 2020s | 365 ft |
Castle Pines wells are commonly deeper than a buyer may expect. The median reported depth is 500 feet, while the middle half of wells falls between 285 and 670 feet. The depth distribution is split toward the deeper side: 37% are between 300 and 600 feet, and another 37% exceed 600 feet. The deepest record reaches 3220 feet.
That range matters when comparing drilling bids. A contractor pricing only a shallow target may not be using the local record correctly. In Denver Basin sedimentary bedrock, the selected aquifer, casing and grout design, access, and the actual geology at the lot can all change the finished scope. Review nearby well logs before assuming a neighbor's depth will repeat on your property.
Reported well yields are generally encouraging for domestic use. The median pump yield is 12.0 gallons per minute, and the middle half is 10.0 to 15.0 gallons per minute. About 68% of reported wells fall from 5 to 15 gallons per minute, while 31% report more than 15 gallons per minute. Only 1% report 1 to 5 gallons per minute, and 0% are under 1 gallon per minute in this dataset.
These figures describe reported pump yields, not a promise of continuous flow from every well. Storage tanks and the well's recovery rate still matter, particularly for larger homes, irrigation, livestock, or fire-protection planning. Confirm the permit's allowed use: domestic and household wells make up 55% of the use mix, while stock accounts for 17% and irrigation for 5%. Exempt household-use wells remain subject to their permit conditions and the 35 gpm exempt-well pumping limit.
The median static water level is 390 feet below the surface, with the middle half between 187 and 555 feet. A deep well does not automatically mean the water is just as deep, but these measurements show why pump setting, drop-pipe length, and electrical planning deserve attention in an early estimate.
The decade series does not move in a simple one-way direction. Median depth to water was 245 feet in the 1970s, rose to 480 feet in the 2010s, and measured 365 feet in the 2020s. That pattern suggests variation in the measurements and locations rather than enough evidence to declare a steadily dropping water table. Only 126 wells report a static water level, so use the trend as context, not as a parcel-specific forecast.
Colorado DWR records contain 2,451 permitted wells within the Castle Pines search area. Of those, 1,211 are recorded as constructed, 1,309 report a total depth, and 767 report a pump yield. The newest permit year is 2025, but only 16 permits in the records were issued during the 2020s. Permit records therefore include a long construction history, not just recent subdivision activity.
Hier Drilling Co Inc, listed with Bruce A. Hier, appears most often with 587 records. Hier Drilling Co., listed with Peter J. Hier, appears on 269, and records marked Authorized with Pe, Pg account for 136. Those names can help identify nearby drilling history. They do not replace a current written proposal, site visit, or review of the specific permit and well construction report for your lot.
For Castle Pines ground conditions, the planning rate is $50 to $70 per foot. At the 500-foot median depth, that puts the drilled hole at about $25,000 to $35,000. A finished well that includes the pump, pressure tank, trenching, and electrical is modeled at about $31,000 to $47,000.
That is a budgeting range, not a fixed bid. A lot with difficult access, unusual casing or grout requirements, extra trenching, or a deeper-than-expected target can exceed it. Ask the driller what is included and what is excluded. Compare the proposal against nearby completed wells, the anticipated aquifer, and the intended household or irrigation use. Site development costs, septic work, and building excavation should be priced separately unless the contract clearly combines them.
Low yield is not the main warning sign in the reported data, but a statistical result cannot rule out a dry hole or a poor-producing lot. Test the actual well's recovery, inspect the pump and pressure equipment, and obtain a current water-quality test. The mapped area within about 10 miles includes 85 PFAS sampling or contamination sites, 27 historic mine features, and 17 EPA Superfund or cleanup sites. Those maps do not prove contamination at a parcel; they do justify careful testing and records review.
Also verify septic setbacks, usable building area, driveway access, and the separation between the well and septic system. Fractured-bedrock conditions can be unpredictable even where the broader area is productive. In over-appropriated basins, a new use may require an augmentation plan. Confirm the permit's authorized use before assuming domestic, stock, or irrigation water rights transfer with the property.
Before closing, request the DWR well permit, construction report, pump information, static water level, yield test, and recent laboratory water test. Compare that record with wells in Castle Pines Village, Stepping Stone, Lone Tree, Meridian Village, and Sierra Ridge, while remembering that geology can change over short distances. If the parcel has no well, use nearby depths and yields to set expectations, then obtain a driller's site-specific opinion.
For a new build, budget from the local 500-foot median but keep room for the 285-to-670-foot middle range and deeper outcomes. Confirm driveway access for a large rig, power for the pump, trench routes, septic approval, and the legal water use before finalizing plans. A well contractor, septic designer, and county or DWR records review should all be part of the due diligence process.
| Decade permitted | Wells |
|---|---|
| 2020s | 16 |
| Most active drillers on record | Wells |
|---|---|
| Hier Drilling Co Inc (Hier, Bruce A.) | 587 |
| Hier Drilling Co. (Hier, Peter J) | 269 |
| Authorized (Pe, Pg) | 136 |
How this is built: the median permitted depth here times the per-foot range for this ground, plus the normal system costs. A lot at the 75th-percentile depth (670 ft) would run roughly $39,500–$58,900. See the full Colorado well cost guide.
Counts come from EPA, USGS and state datasets layered on the Colorado Well Finder map. A count is not a verdict on any one well; it tells you what to test for.
The numbers above are the area average. Your lot is one point on the map. Search the address to see the real depth, yield and aquifer of each permitted well around it.
Map wells near Castle PinesTri-Lakes Contracting is a licensed Colorado contractor serving Castle Pines and nearby communities with access driveways, site development, new-build septic systems, and custom homes. Their local construction experience can help coordinate the site work that follows well planning.
Licensed Colorado custom home builder · licensed driveway & excavation contractor · licensed septic installer
A listing photo can't tell you whether a lot is a dream or a money pit. Two parcels near Castle Pines can carry the same asking price while one needs an $80,000 driveway and a $45,000 engineered septic the other doesn't. The well numbers on this page are the start of that answer. A Tri-Lakes Site Feasibility Report is the rest of it: a licensed general contractor, excavator and septic installer reads the parcel the way we would if we were about to build on it, and puts the real cost in writing before your money is committed.
Spend a little to know. Or gamble a lot to guess. Realtors sell the view and inspectors look at houses that already exist. We're the people who'd build it, so we catch what quietly turns a "great deal" into a budget disaster: bad access, buried rock, steep grade, soil that won't pass for a normal septic, water that's a fortune to reach. And if the lot is good, you've already got a builder ready to do the work, driveway to drywall.
Under contract, comparing parcels, or a realtor with a rural listing whose buyers keep asking "what will it cost to build here?" This is the due-diligence step almost everyone skips, and the one that saves the most.
Driveway, site work, septic or a build near Castle Pines. Licensed GC, excavator and septic installer.
Got it. Tri-Lakes will get back to you shortly.
Something went wrong sending that. Email kyle@trilakes.co instead.
The median reported well depth near Castle Pines is 500 feet. The middle half of wells is between 285 and 670 feet, while 37% exceed 600 feet. The deepest record is 3220 feet. Actual depth depends on the lot, selected aquifer, local sedimentary bedrock, and the driller's findings during construction.
The local planning rate is $50 to $70 per foot. At the 500-foot median depth, the drilled hole is modeled at about $25,000 to $35,000. A finished well including pump, tank, trenching, and electrical is estimated at about $31,000 to $47,000. Access, depth, and construction requirements can change the bid.
The median reported pump yield is 12.0 gallons per minute, with the middle half between 10.0 and 15.0 gallons per minute. About 68% of wells report 5 to 15 gallons per minute, and 31% report more than 15 gallons per minute. These are reported yields, not a guarantee for an unbuilt well.
Permit records do not prove that a particular well is safe to drink. Test the actual well through a qualified laboratory before occupancy and retest when conditions warrant. Within about 10 miles, mapping shows 85 PFAS sampling or contamination sites, 27 historic mine features, and 17 EPA Superfund or cleanup sites, making parcel-specific water testing especially important.
The available decade data does not show a simple steady decline. Median depth to water was 245 feet in the 1970s, 480 feet in the 2010s, and 365 feet in the 2020s. Only 126 wells report static water levels, so the series reflects limited and varied measurements. Check the actual well's static level and recovery history.
All wells in Douglas County — county-wide depth, yield and cost figures.
Driveway, septic, site development, feasibility or a custom build near Castle Pines.
Shopping a lot? Run the $99 instant buildability check →