Colorado Well Finder › Wells by county › Arapahoe County › Littleton
Well records within 5 miles of Littleton show a wide range of conditions. The median reported depth is 40 feet, but the middle half runs from 25 to 300 feet, and the deepest recorded well reaches 2,470 feet. That spread matters when you are comparing a vacant lot, an existing home, or a driller’s estimate.
Most permits identify Denver Basin aquifers, and the local records include wells near Columbine Valley, Columbine, Bow Mar, Sheridan, Englewood and Highlands Ranch. Use these numbers as a screening tool, not a guarantee for one parcel. The nearby well locations, construction details, intended use and actual geology still need to be checked before buying or building.
Figures are computed from Colorado Division of Water Resources permit records for permitted wells within 5 miles of Littleton. Not every permit reports every field; each statistic uses the wells that report it.
| Depth statistic | Feet |
|---|---|
| 25th percentile | 25 |
| Median | 40 |
| 75th percentile | 300 |
| 90th percentile | 747 |
| Deepest on record | 2,470 |
| Aquifer named on permits | Wells |
|---|---|
| unnamed / fractured-bedrock aquifer | 3,142 |
| Alluvial | 220 |
| Arapahoe | 202 |
| Yield statistic | gpm |
|---|---|
| 25th percentile | 10.0 |
| Median | 13.6 |
| 75th percentile | 19.5 |
| Median depth to water | 24 ft |
| Median water level by decade | Depth to water |
|---|---|
| 1960s | 19 ft |
| 2010s | 25 ft |
| 2020s | 15 ft |
Among the 2,327 local records that report total depth, the median is 40 feet. The middle half falls between 25 and 300 feet, so a property near the median does not necessarily fit a shallow-well assumption. A driller bidding a new well should account for the possibility that the hole will be much deeper than the median.
Depth distribution shows why. About 67% of reported wells are under 100 feet, while 7% are 100 to 300 feet, 13% are 300 to 600 feet, and 13% exceed 600 feet. The deepest record is 2,470 feet. Denver Basin sedimentary bedrock underlies the cost model here, and local formation, aquifer target and permit requirements can change the bid substantially.
Only 291 records report a pump yield, so the yield statistics are a smaller sample than the depth data. Within that group, the median yield is 13.6 gallons per minute, with the middle half between 10.0 and 19.5 gallons per minute. That is a useful planning range for a household well, but it is not a promise for an untested lot.
The distribution is generally favorable in this record set: 49% produce 5 to 15 gallons per minute and 46% produce more than 15 gallons per minute. Another 5% fall between 1 and 5 gallons per minute, while no reported wells are under 1 gallon per minute. Ask for the pumping test and recovery information, not just a verbal yield estimate.
The 80 wells reporting static water level have a median depth to water of 24 feet. The middle half ranges from 14 to 71 feet below the ground surface. That range affects casing, pump placement, trenching and the amount of work needed before a well can be put into service.
The decade figures do not establish a steady decline. The median measured water level was 19 feet below surface in the 1960s, 25 feet in the 2010s, and 15 feet in the 2020s. Those measurements come from different wells and locations, so they should not be treated as a single monitoring record. A buyer should obtain the specific well’s static level, pumping test and construction report when available.
The records contain 4,276 permitted wells, with 2,043 marked as constructed. Permitting has continued through 2025. The busiest decades in this data are the 1990s, with 821 permits, and the 2000s, with 833. There are also 293 permits from the 2020s, so this is not only an older well area.
The most active names in the records are Authorized (Pe, Pg), with 1,209 entries, Hier Drilling Co Inc (Hier, Bruce A.), with 276, and Hier Drilling Co. (Hier, Peter J), with 91. Those counts describe permit records, not current availability or workmanship. Confirm licensing, insurance, references and who will handle the pump, pressure tank, electrical work and final documentation.
The local drilling model uses a typical rate of $50 to $70 per foot in Denver Basin sedimentary bedrock. At the local median depth of 40 feet, the drilled hole works out to about $2,000 to $2,800. That is only the hole. It does not represent the complete water system or all site conditions.
A finished well with pump, tank, trenching and electrical is modeled at $8,000 to $14,800 at that median depth. A property requiring a 300-foot, 747-foot or deeper hole will not fit that shallow-depth example. Request a written scope showing drilling, casing, grout, pump sizing, trench length, electrical connection, testing and permit-related work. Access for a rig and difficult excavation can also affect the final bid.
Well quantity is only part of the decision. Within about 10 miles, the mapped environmental inventory includes 300 PFAS sampling or contamination sites, 35 historic mine features and 37 EPA Superfund or cleanup sites. Those mapped sites do not prove a particular parcel is contaminated, but they justify a site-specific water test and a review of nearby land uses.
Low yield and dry-hole risk still need attention, especially because the depth range is so broad. Most permits name unnamed or fractured-bedrock aquifers, while the records also include alluvial and Arapahoe aquifers. Confirm the well location, casing and grout, water quality, pumping performance and septic setbacks. A septic designer should evaluate soil, reserve area, slope and the proposed building location before excavation begins.
Start with the exact parcel, then compare nearby permitted wells rather than relying on a countywide average. Look for reported depth, yield, static water level, aquifer name, construction status and intended use. The permit mix here is 30% domestic or household, 3% stock, 7% irrigation and 44% monitoring, so not every nearby record is a useful residential comparison.
Most permits identify Denver Basin aquifers, and 99% are Denver Basin aquifer wells. Ask the Colorado Division of Water Resources about the applicable permit and household-use rules, including whether an augmentation plan is needed in the basin. For a vacant lot, price the access drive, well, septic system, utilities and building pad together. For an existing home, make the sale contingent on inspecting the well and testing both water quality and sustained production.
| Decade permitted | Wells |
|---|---|
| 1950s | 154 |
| 1960s | 125 |
| 1970s | 266 |
| 1980s | 280 |
| 1990s | 821 |
| 2000s | 833 |
| 2010s | 411 |
| 2020s | 293 |
| Most active drillers on record | Wells |
|---|---|
| Authorized (Pe, Pg) | 1,209 |
| Hier Drilling Co Inc (Hier, Bruce A.) | 276 |
| Hier Drilling Co. (Hier, Peter J) | 91 |
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 (300 ft) would run roughly $21,000–$33,000. 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 LittletonTri-Lakes Contracting is a licensed Colorado contractor serving Littleton and nearby communities with access driveways, site development, new-build septic systems and custom homes. Their work can help coordinate the ground, utility and building pieces of a rural property project.
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A listing photo can't tell you whether a lot is a dream or a money pit. Two parcels near Littleton 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.
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The median reported well depth within 5 miles of Littleton is 40 feet. The middle half runs from 25 to 300 feet, while 13% of reported wells are 600 feet or deeper. The deepest record is 2,470 feet. That range is wide enough that nearby parcel-specific records matter more than the median alone.
The local drilling model uses $50 to $70 per foot. At the 40-foot median depth, the drilled hole is estimated at $2,000 to $2,800. A finished system with pump, tank, trenching and electrical is estimated at $8,000 to $14,800. Deeper drilling, difficult access and site work can change the final bid.
Among the 291 records that report a pump yield, the median is 13.6 gallons per minute, with the middle half from 10.0 to 19.5 gallons per minute. Forty-nine percent report 5 to 15 gallons per minute and 46% report more than 15. These figures are not a guarantee for a new well.
Well safety depends on testing the specific well. The area has 300 mapped PFAS sampling or contamination sites within about 10 miles, along with 37 EPA Superfund or cleanup sites. Those locations do not establish contamination on every property. Test the well water before purchase and again after construction or any change in nearby land use.
The available water-level series does not show a simple steady decline. Median depth to water was 19 feet in the 1960s, 25 feet in the 2010s and 15 feet in the 2020s. Those are measurements from different wells. For a property decision, obtain the specific well’s static level, pumping test, recovery information and permit conditions.
All wells in Arapahoe County — county-wide depth, yield and cost figures.
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