Colorado Well Finder › Wells by county › Teller County › Green Mountain Falls
Buying mountain property near Green Mountain Falls means treating the well record as part of the site investigation. The nearby permit data shows fractured-bedrock conditions, with well depth, yield, and cost varying from lot to lot. Most permitted wells serve domestic or household use, but only a portion of records include pump-yield or static-water-level information.
Use these figures to set expectations, not to guarantee what a new well will do. A driller still needs to evaluate the exact parcel, access, geology, casing and grout requirements, and the location of the proposed house and septic system.
Figures are computed from Colorado Division of Water Resources permit records for permitted wells within 5 miles of Green Mountain Falls. Not every permit reports every field; each statistic uses the wells that report it.
| Depth statistic | Feet |
|---|---|
| 25th percentile | 100 |
| Median | 185 |
| 75th percentile | 350 |
| 90th percentile | 500 |
| Deepest on record | 3,535 |
| Aquifer named on permits | Wells |
|---|---|
| unnamed / fractured-bedrock aquifer | 1,530 |
| Alluvial | 9 |
| Fractured Granite | 5 |
| Yield statistic | gpm |
|---|---|
| 25th percentile | 2.0 |
| Median | 6.4 |
| 75th percentile | 9.5 |
| Median depth to water | 75 ft |
| Median water level by decade | Depth to water |
|---|---|
| 2020s | 105 ft |
The median reported well depth near Green Mountain Falls is 185 feet. The middle half runs from 100 to 350 feet, so a bid based only on the median can miss the conditions on a particular mountain lot. The 90th-percentile depth is 500 feet, and the deepest recorded well reaches 3,535 feet.
Depths reflect fractured mountain bedrock, identified mainly as unnamed or fractured-bedrock aquifer. Granite and gneiss can produce water through separate fractures rather than through a uniform layer. For planning, the 100-to-350-foot range is more useful than assuming every well will be close to 185 feet. Ask for a written estimate that explains the per-foot rate, casing, grout, pump setting, and what happens if drilling continues beyond the planned depth.
Among wells with reported pump yields, the median is 6.4 gallons per minute. The middle half is 2.0 to 9.5 gallons per minute. That spread matters: a well at 2.0 gpm may work for a household with adequate storage and conservative use, while a higher-producing well gives more operating margin.
Eight percent of reported wells produce under 1 gpm, 31% fall between 1 and 5 gpm, 55% fall between 5 and 15 gpm, and 6% report more than 15 gpm. These are well-production figures, not a promise of continuous supply. Have the driller document the test method and duration, then size the pump, pressure tank, and storage around the tested result and the home’s expected demand.
Only 43 nearby permits report a static water level, so the water-level sample is limited. In those records, the median depth to water is 75 feet, with the middle half from 57 to 115 feet. That gives a useful starting point for pump and drilling discussions, but it does not describe every parcel.
The permit counts by decade do not provide a consistent water-level series: the available facts do not show static-water-level medians by decade. For that reason, these records cannot establish a dropping or stable water table around Green Mountain Falls. Ask to review nearby wells with similar geology and elevation, and have a qualified driller measure the new hole before finalizing pump equipment.
The records include 1,563 permitted wells within the mapped area, with 1,017 recorded as constructed. The newest permit year is 2025. Permits were issued across the 1950s through the 2020s, with the largest decade totals in the 1990s and 1980s. Most permits are for domestic or household use, accounting for 88% of the recorded use mix.
The most active drillers in these records are Mountain Well Improvement Llc (Wiley, David D.), with 192 records; Woods Drilling Inc. (Woods, William D.), with 175; and Woods Drilling Inc. (Woods, William L.), with 154. A permit history is useful local evidence, but it is not a substitute for checking current licensing, references, access conditions, and a written scope for your lot.
The local cost model assumes fractured mountain bedrock, including granite and gneiss, at about $65 to $100 per foot. At the 185-foot median depth, the drilled hole works out to about $12,000 to $18,500. That is the hole only, not the complete water system.
A finished well with pump, tank, trenching, and electrical is estimated at $18,000 to $30,500 at the median depth. A deeper hole can raise the drilling portion substantially, especially in difficult access or fractured rock. When comparing bids, ask which items are included, where the pump will be set, how casing and grout are priced, and whether trenching and electrical work are allowances or fixed amounts.
Low yield is the primary practical risk in a fractured mountain setting. The records show 8% of reported yields under 1 gpm, and some wells may require storage planning even when they are usable. A dry hole is also a possibility in fractured rock because nearby production does not guarantee the same fracture on your parcel.
Water quality deserves its own investigation. Within about 10 miles, the map includes 31 PFAS sampling or contamination sites, 23 historic mine features, and 12 EPA Superfund or cleanup sites. Those mapped sites do not prove contamination at a property, but they support testing before purchase. Test the existing well, inspect casing and grout, and confirm septic setbacks, replacement-area needs, driveway access, and the proposed building location before committing to construction.
Start by pulling the DWR permit records for the property and nearby wells, then compare reported depth, yield, static water level, use, and aquifer description. Nearby Cascade-Chipita Park, Woodland Park, Divide, Manitou Springs, Air Force Academy, and Midland can provide broader regional context, but the closest wells with similar elevation and bedrock are the strongest comparison.
Before closing, inspect any existing well and obtain a recent production test and water-quality report. For a vacant lot, have a licensed driller review access, siting, expected depth, and a contingency for low yield or additional drilling. Coordinate the well with septic and the house footprint. Domestic wells generally require a Colorado DWR permit, and an augmentation plan may matter in an over-appropriated basin; confirm the property’s legal water-use position before building.
| Decade permitted | Wells |
|---|---|
| 1950s | 39 |
| 1960s | 43 |
| 1970s | 212 |
| 1980s | 218 |
| 1990s | 308 |
| 2000s | 155 |
| 2010s | 103 |
| 2020s | 81 |
| Most active drillers on record | Wells |
|---|---|
| Mountain Well Improvement Llc (Wiley, David D.) | 192 |
| Woods Drilling Inc. (Woods, William D.) | 175 |
| Woods Drilling Inc. (Woods, William L.) | 154 |
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 (350 ft) would run roughly $28,750–$47,000. 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 Green Mountain FallsTri-Lakes Contracting is a licensed Colorado contractor serving Green Mountain Falls and nearby mountain communities with access driveways, site development, new-build septic systems, and custom homes. Bring the well, septic, driveway, and house layout together early so the site plan works in the actual terrain.
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A listing photo can't tell you whether a lot is a dream or a money pit. Two parcels near Green Mountain Falls 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 depth is 185 feet, and the middle half of nearby wells runs from 100 to 350 feet. The 90th-percentile depth is 500 feet, while the deepest record is 3,535 feet. Most wells are in fractured mountain bedrock, so the exact lot and fracture pattern can move the required depth well beyond the median.
Reported yields have a 6.4 gallons-per-minute median, with the middle half from 2.0 to 9.5 gallons per minute. Eight percent of reported wells are under 1 gpm. Because only 465 permits report a pump yield, use these figures for planning rather than as a guarantee. Require a production test on the specific well.
The fractured-bedrock cost model uses $65 to $100 per foot. At the 185-foot median depth, the drilled hole is estimated at $12,000 to $18,500. A finished system with pump, tank, trenching, and electrical is estimated at $18,000 to $30,500. Deeper drilling, difficult access, and site-specific construction can change the bid.
Safety cannot be determined from a permit record alone. The mapped area includes 31 PFAS sampling or contamination sites, 23 historic mine features, and 12 EPA Superfund or cleanup sites within about 10 miles. Those locations do not prove a particular well is affected. Test the property’s water and review casing, grout, well location, and septic conditions before purchase.
The available records do not establish a declining water table because only 43 permits report static water levels and no water-level-by-decade series is provided. Those reported levels have a 75-foot median depth to water, with the middle half from 57 to 115 feet. Compare nearby wells by geology and elevation, and obtain a current production test before relying on one.
All wells in Teller County — county-wide depth, yield and cost figures.
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