What Louisville, Colorado Wells Are Really Like

How deep are wells around Louisville?

How much water do wells make near Louisville?

Louisville well depth depends on the formation

Louisville-area well depths vary substantially. The median is 150 feet, while the middle half runs from 30 to 300 feet. Forty-three percent of recorded wells are under 100 feet, 30% fall between 100 and 300 feet, 22% are between 300 and 600 feet, and 6% exceed 600 feet. The deepest record reaches 1,989 feet.

For a drilling bid, do not treat 150 feet as a promised target. It is a planning midpoint. A lot with nearby shallow wells may still require a deeper hole if the water-bearing interval is different. The records identify 3,217 wells in unnamed or fractured-bedrock aquifers, 203 in Laramie Fox Hills, and 154 in alluvial aquifers. Those conditions can change over short distances.

What Louisville wells produce

Among wells with reported pump yields, the median is 10.0 gallons per minute and the middle half is 8.0 to 15.0 gpm. The distribution is fairly favorable on paper: 64% report 5 to 15 gpm, 28% report more than 15 gpm, 6% report 1 to 5 gpm, and 2% report under 1 gpm.

That low-yield share matters to a buyer. A well producing under 1 gpm may still serve a home with storage, but it gives less margin for household use, irrigation, leaks, or future construction. Only 507 wells in the records report a pump yield, so ask for the well test, pump information, and actual production history rather than assuming the neighborhood median applies to the property.

Louisville water levels and the record over time

The median static water level is 19 feet below the surface, with the middle half from 8 to 42 feet. That is a relatively shallow measured water level compared with the range of drilling depths, but static level is not the same as sustainable well production. It can also vary with season, pumping, and measurement method.

The decade series does not show a simple continuing decline. Median measured depth to water was 27 feet in the 1950s, 37 in the 1960s, 20 in the 1970s, 70 in the 1980s, 23 in the 2010s, and 10 in the 2020s. Only 143 wells report static water levels, so the 1980s increase should not be treated as proof of a basin-wide trend. Check the specific well and nearby measurements.

Permit history points to long local drilling experience

There are 4,093 Colorado DWR permit records in the Louisville search area, with 2,379 recorded as constructed. Permits span several decades, and the newest permit year is 2025. The largest permit totals by decade are 652 in the 1990s, 463 in the 1970s, 368 in the 2010s, and 355 in the 2000s.

The most active drillers in these records are Authorized (Pe, Pg), with 676 wells; Waneka & Son Drilling (Waneka, Don), with 487; and Ground Water Systems Inc (Wilson, Richard R.), with 238. These names describe permit history, not a recommendation or a current bid. Confirm licensing, availability, scope, and recent references before hiring.

Louisville drilling cost starts with depth

For Denver Basin sedimentary bedrock, the local cost model uses a typical drilling rate of $50 to $70 per foot. At the 150-foot median depth, the drilled hole works out to about $7,500 to $10,500. That is only the hole, not the complete water system.

A finished well including the pump, tank, trenching, and electrical is modeled at about $13,500 to $22,500 at the median depth. A deeper-than-median hole can move the bid higher, and the final price depends on casing, grout, access, formation conditions, and the equipment needed. Get a written scope that separates drilling from pump installation, electrical, trenching, testing, and permit-related work.

Louisville lots need environmental and septic review

Mapped sites within about 10 miles include 427 PFAS sampling or contamination sites, 116 historic mine features, and 30 EPA Superfund or cleanup sites. These mapped locations do not establish contamination at a particular parcel, but they are a reason to test the well and check the property's position relative to known sites. Ask for recent water-quality results and the well construction record.

Low yield, dry holes, and fractured-bedrock variability are practical risks. Septic setbacks, drainfield space, access for a rig, and the location of the house can affect the usable building area. A DWR permit is not a water-quality certificate. Confirm the permitted use, household needs, septic design, and any augmentation-plan requirements that apply to the basin before closing or building.

Before buying or building near Louisville

Start with the closest constructed wells, not just the neighborhood average. Compare their depths, aquifers, reported yields, static levels, use, and construction details. A cluster of similar records near a parcel gives a driller better information for a bid, while a sharp change in depth or formation is a warning to investigate further.

For an existing home, obtain the well permit, pump test, water-quality tests, treatment history, and repair records. For vacant land, have a Colorado well contractor evaluate rig access and likely siting before you finalize the house plan. Domestic or household use accounts for 56% of the records, while monitoring wells account for 23%, so do not mistake every mapped well for a residential supply. Build the well, septic, access, and electrical plan together.

Well permits by decade near Louisville

What a new well costs in Louisville, CO

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.

Environmental sites mapped within about 10 miles

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.

Buying land near Louisville? Know what it costs to build before you buy the dirt.

A listing photo can't tell you whether a lot is a dream or a money pit. Two parcels near Louisville 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.

• Instant Online Report, $99 — type the address and get a buildability read on the spot: parcel, terrain and slope, soil and septic outlook. Cheap enough to run on every lot you're shopping.
• Desktop Report, $500 — a contractor's from-the-desk feasibility read: Regulation 43 and county code, GIS parcel data, terrain, flood and drainage, soil and septic viability, setbacks and buildable envelope, nearby well depths from our 591,000-well database, the likely driveway route, and a preliminary site-development cost breakdown.
• On-Site Report, $2,000 — everything above, then boots and a drone on the actual ground: house pad and septic zone located, access and winter conditions checked, rock and soil observed in person, a 15 to 20 page written opinion you can hand a lender or seller. Credited toward your project if you build with us.

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.

Common questions about wells in Louisville

Keep researching

More in Boulder County

All wells in Boulder County — county-wide depth, yield and cost figures.

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