Seven Hills, Colorado Well and Drilling Guide

How deep are wells around Seven Hills?

How much water do wells make near Seven Hills?

Seven Hills well depth reflects fractured mountain bedrock

The median reported well depth near Seven Hills is 200 feet. The middle half runs from 35 to 380 feet, which is a wide spread for a buyer trying to budget a new well. About 37% of reported wells are under 100 feet, 26% fall between 100 and 300 feet, 28% are between 300 and 600 feet, and 9% exceed 600 feet. The deepest recorded well is 4,550 feet.

Most permits name an unnamed or fractured-bedrock aquifer: 4,790 wells, compared with 80 alluvial wells and 45 Quaternary Alluvium wells. Fractured granite and gneiss can produce water through isolated cracks, so depth can change sharply from one lot to the next. Ask for neighboring well logs before accepting a fixed drilling assumption.

Most Seven Hills wells make usable household yields

Among the 990 wells that report a pump yield, the median is 7.0 gallons per minute. The middle half is 5.0 to 10.0 gallons per minute, and 70% report yields from 5 to 15 gallons per minute. Another 18% are in the 1-to-5-gallon range, 2% are under 1 gallon per minute, and 9% exceed 15 gallons per minute.

That distribution is generally workable for a household when storage and the pumping system are designed correctly, but a 7.0-gpm median is not a promise for a particular parcel. A buyer should review the actual well test, pump setting, recovery behavior, and permitted use. Household wells are commonly exempt wells, subject to their permit conditions and Colorado water rules.

Water levels vary, with recent records deeper than the overall median

The overall median static water level is 42 feet below the ground surface, with the middle half between 11 and 100 feet. Only 148 records report a static water level, so this is a smaller and less uniform sample than the depth data.

Measurements by decade do not form a steady decline. The median was 32 feet in the 1960s, 40 in the 1970s, 60 in the 1980s, 6 in the 2000s, 78 in the 2010s, and 75 in the 2020s. The recent decade values are deeper than the overall median, but the large swings and limited reporting do not prove that the water table is dropping across Seven Hills. Have a driller measure the existing well and evaluate seasonal behavior.

Permit history shows long use, with drilling still occurring

Seven Hills has a long permit history. Records show 109 permits from the 1950s, 231 from the 1960s, 919 from the 1970s, 619 from the 1980s, 789 from the 1990s, 477 from the 2000s, 373 from the 2010s, and 266 from the 2020s. The newest permit year is 2025.

The records identify Ground Water Systems Inc. (Wilson, Richard R.) on 867 permits, Authorized (Pe, Pg) on 601, and Ingram Drilling Inc. (Ingram, Stephen E.) on 251. These counts describe permit records, not current availability or endorsements. Confirm licensing, insurance, schedule, and the proposed scope directly with any driller. Review the DWR permit, construction report, and well test rather than relying only on a seller’s summary.

Budget about $19,000 to $32,000 for a finished median-depth well

Seven Hills is fractured mountain bedrock, described in the drilling model as granite and gneiss. The typical drilling rate is $65 to $100 per foot. At the 200-foot median depth, the drilled hole models to about $13,000 to $20,000.

A finished well, including the pump, pressure tank, trenching, and electrical work, models to about $19,000 to $32,000 at that depth. The wide local depth range means a bid based only on the median can be misleading: a hole near 380 feet has a different drilling exposure than one under 100 feet. Get a written bid that explains footage, casing, grout, mobilization, testing, pump equipment, power, trenching, and what happens if the hole is dry or produces too little water.

Check contamination, dry-hole exposure, and the building plan

Environmental screening matters around Seven Hills. Within about 10 miles are 89 PFAS sampling or contamination sites, 693 historic mine features, and 67 EPA Superfund or cleanup sites. Those mapped locations do not establish contamination at a specific parcel, but they are reasons to check site proximity, historic uses, laboratory water tests, and local agency records.

Low yield and dry holes remain practical risks in fractured rock, even where nearby wells perform well. Also confirm separation from septic components, wells, property lines, driveways, and proposed structures before construction. A septic system and house layout can limit the best drilling location. Water quality testing should cover the concerns appropriate to the parcel’s history, and an existing well should be inspected rather than judged by flow alone.

Well permits by decade near Seven Hills

What a new well costs in Seven Hills, 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 (380 ft) would run roughly $30,700–$50,000. 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 Seven Hills? 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 Seven Hills 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 Seven Hills

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