Bow Mar well records

Bow Mar Colorado Well Depth, Yield, and Cost

Colorado Well FinderWells by countyArapahoe County › Bow Mar

Bow Mar sits on the plains in Arapahoe County, where nearby well records show a wide range of conditions. The median reported well depth is 36 feet, but the deepest record reaches 1,948 feet. That spread matters when you compare a property to a nearby parcel.

This page covers permitted wells within 5 miles of Bow Mar, including records from Columbine Valley, Sheridan, Columbine, Littleton, Englewood, and Dakota Ridge. The records are useful for setting expectations, but a driller still needs to review the specific lot, access, geology, permit requirements, and intended use.

5,465wells in DWR permit records
36 ftmedian well depth
24–120 ftmiddle half of well depths
13.0 gpmmedian pump yield
17 ftmedian depth to water
2025newest permit on record

Figures are computed from Colorado Division of Water Resources permit records for permitted wells within 5 miles of Bow Mar. Not every permit reports every field; each statistic uses the wells that report it.

How deep are wells around Bow Mar?

72% under 100 ft11% 100–300 ft10% 300–600 ft7% 600+ ft
Depth statisticFeet
25th percentile24
Median36
75th percentile120
90th percentile494
Deepest on record1,948
Aquifer named on permitsWells
unnamed / fractured-bedrock aquifer4,345
Alluvial240
Arapahoe146

How much water do wells make near Bow Mar?

1% under 1 gpm8% 1–5 gpm50% 5–15 gpm41% 15+ gpm
Yield statisticgpm
25th percentile8.6
Median13.0
75th percentile15.0
Median depth to water17 ft
Median water level by decadeDepth to water
1950s24 ft
1960s20 ft
1970s150 ft
2000s13 ft
2010s26 ft
2020s14 ft

Bow Mar well depths vary sharply by lot

Most recorded wells near Bow Mar are relatively shallow: 72% are under 100 feet, and the middle half fall between 24 and 120 feet. The median is 36 feet. That gives a driller a reasonable starting point for a preliminary bid, but it does not guarantee that a new hole will reach water at that depth.

The long tail is important. The 90th-percentile depth is 494 feet, and the deepest recorded well is 1,948 feet. Permits identify the Denver Basin aquifer on 99% of wells, with many records described as unnamed or fractured-bedrock aquifer. Sedimentary bedrock and local changes in formations can make two nearby lots behave differently.

What Bow Mar wells produce

Among the limited records that report pump yield, the median is 13.0 gallons per minute. The middle half runs from 8.6 to 15.0 gallons per minute. Half of the reported wells produce between those figures, while 41% report more than 15 gallons per minute.

Low-producing wells are present but uncommon in the reported sample: 1% are under 1 gallon per minute and 8% fall between 1 and 5 gallons per minute. Only 257 wells report a pump yield, so do not treat the area median as a guarantee for an untested lot. Ask for the well permit, completion report, pump test, storage setup, and any records of insufficient supply.

Water levels near Bow Mar and the decade record

The median static water level is 17 feet below the surface, with the middle half between 12 and 31 feet. For a shallow well, that can simplify pumping, but water level is not the same as sustainable well yield. A well can have water standing nearby and still recover slowly when pumped.

The decade series does not show a simple, steady decline. Reported medians were 24 feet in the 1950s, 20 in the 1960s, 150 in the 1970s, 13 in the 2000s, 26 in the 2010s, and 14 in the 2020s. Measurement counts and well locations vary by decade, so compare the specific well's recent static level rather than assuming a neighborhood-wide trend.

Permit history and the drillers appearing most often

Permit activity increased substantially in the 1990s and 2000s, with 1,063 permits issued in the 1990s and 1,180 in the 2000s. The records include 393 permits from the 2020s, and the newest permit year is 2025. Monitoring wells make up 48% of the use mix, while domestic or household wells make up 28%. That distinction matters because not every nearby record represents a home water supply.

The most active driller names in these records are Authorized (Pe, Pg), with 1,879 records; Hier Drilling Co Inc (Hier, Bruce A.), with 173; and Ground Exploration Llc (Bender, Joseph T.), with 110. These are historical permit appearances, not a recommendation or proof of current availability.

What a new Bow Mar well may cost

The local cost model uses a typical drilling rate of $50 to $70 per foot in Denver Basin sedimentary bedrock. At the 36-foot median depth, the drilled hole alone models at about $1,800 to $2,500. That is only the hole, not a usable water system.

A finished well with pump, pressure tank, trenching, and electrical is modeled at about $7,800 to $14,500 at that median depth. A deeper-than-typical hole can raise the drilling portion quickly, and difficult access, casing, grout, water testing, storage, or site conditions can affect the final proposal. Get a written bid that separates drilling, completion, equipment, trenching, electrical, and permitting.

Bow Mar risks to check before you commit

Water quality deserves a separate investigation. Within about 10 miles, the mapping shows 392 PFAS sampling or contamination sites, 136 EPA Superfund or cleanup sites, and 57 historic mine features. Those mapped sites do not prove that a particular well is contaminated, but they are a reason to test the existing well and ask about nearby land uses before closing.

Low yield and dry holes remain possible even where nearby wells look productive. Confirm casing, grout, well construction, pump performance, and recent laboratory results. For a new home, also verify septic setbacks, suitable drainfield ground, driveway access, electrical routing, and the water-use rules attached to the permit. A DWR permit and an exempt household-use well are not interchangeable assumptions; confirm the permitted use for the property.

Well permits by decade near Bow Mar

Decade permittedWells
1950s166
1960s165
1970s289
1980s268
1990s1,063
2000s1,180
2010s496
2020s393
Most active drillers on recordWells
Authorized (Pe, Pg)1,879
Hier Drilling Co Inc (Hier, Bruce A.)173
Ground Exploration Llc (Bender, Joseph T.)110

What a new well costs in Bow Mar, CO

Estimated cost of a new well · Bow Mar, CO · median depth 36 ft
State & county well permit DWR application + county fee
$100–$400
Drilling, casing & grouting 36 ft × $50–$70/ft in Denver Basin sedimentary bedrock
$1,800–$2,500
Pump, pressure tank & install scales with depth
$3,000–$8,000
Trenching, water line, electrical, water test
$2,100–$8,400
Typical finished total
$7,800–$14,500

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 (120 ft) would run roughly $12,000–$20,400. See the full Colorado well cost guide.

Environmental sites mapped within about 10 miles

392PFAS sampling / contamination sites
57historic mine features
136EPA Superfund & cleanup sites

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.

See every well near a specific address in Bow Mar

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 Bow Mar
Building or improving land near Bow Mar?

Tri-Lakes Contracting

Tri-Lakes Contracting is a licensed Colorado contractor serving Bow Mar and nearby Arapahoe County communities with access driveways, site development, new-build septic systems, and custom homes. Bring the well, septic, and building work together early so the lot plan accounts for actual site constraints.

Licensed Colorado custom home builder · licensed driveway & excavation contractor · licensed septic installer

Buying land near Bow Mar? 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 Bow Mar 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.

What the wrong lot can cost you · the things a listing never mentions
Long or steep driveway & access
$25k–$80k+
Rock excavation & extra earthwork
$15k–$60k+
Engineered / advanced septic instead of conventional
+$20k–$40k
Water & long utility runs
$10k–$50k+
A feasibility report
from $99

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.

Tell us about your project

Driveway, site work, septic or a build near Bow Mar. Licensed GC, excavator and septic installer.

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Common questions about wells in Bow Mar

How deep are wells in Bow Mar?

The median reported well depth within 5 miles of Bow Mar is 36 feet. The middle half runs from 24 to 120 feet, and 72% of recorded wells are under 100 feet. Depth still varies widely: the 90th percentile is 494 feet, and the deepest record reaches 1,948 feet.

How much does it cost to drill a well in Bow Mar?

The local model uses $50 to $70 per foot for drilling. At the 36-foot median depth, the hole itself models at about $1,800 to $2,500. A finished system with pump, tank, trenching, and electrical is estimated at $7,800 to $14,500. A deeper hole or difficult site can change the bid.

How much water do Bow Mar wells produce?

Among the 257 wells reporting pump yield, the median is 13.0 gallons per minute, with a middle half from 8.6 to 15.0. Forty-one percent report more than 15 gallons per minute. One percent report under 1 gallon per minute, so review the actual well test rather than relying only on area statistics.

Is well water safe in Bow Mar?

Safety cannot be established from location statistics alone. Mapping within about 10 miles includes 392 PFAS sampling or contamination sites and 136 EPA Superfund or cleanup sites. Test the individual well through a certified laboratory, review its construction and history, and investigate nearby land uses before buying or relying on the water.

Is the water table dropping in Bow Mar?

The decade medians do not show a simple steady decline. Reported static levels were 24 feet below surface in the 1950s, 20 in the 1960s, 150 in the 1970s, 13 in the 2000s, 26 in the 2010s, and 14 in the 2020s. Different locations and measurement counts make the specific well's current reading more useful.

Keep researching

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