Allens Holdings and Investment DBA Evans Energy
Verified license
License 006812, 006600 Active
- Geothermal
- Pump Installation
- Pump Repair
- Well Abandonment
- Well Drilling
- Well Repair
Missouri county well guide
Well Water in Clinton County, MO: Testing, Contractors and Rules
About 220 households in Clinton County, 3% of the county, rely on a private well. Nobody tests that water unless the owner does.
of households on a private well
Share on wells, county vs state
4licensed contractors serve the county
40+ mito a certified lab; mail-in kits recommended
Nostatewide test required when a home is sold
Wells are the exception in Clinton County: about 220 households, under 3% of the county, are on a private well. Being in the minority means less local help, so this page gathers what applies.
Local rules for wells in Clinton County
The rules that apply in Clinton County are set at the state level in Missouri. New wells must be tested before use, and nothing is required at sale. Some counties and townships add permits or setbacks of their own, so check locally before drilling. The state's own recommendations are below.
At a glance
Water test for a new wellRequired
No permit for the owner, but the well must be built by a Missouri permitted well installation contractor to the 10 CSR 23-3 standards for its drilling area (Missouri has 13 drilling areas with different minimum casing depths, grouted casing, 50 ft from a septic tank and 100 ft from a lagoon or drainfield), and the contractor must disinfect the well, take a water sample for bacteria after construction and file a well certification report with the Missouri Geological Survey within 60 days. The State Public Health Laboratory's New Well Series (pH, fluoride, chloride, nitrate, sulfate, iron, manganese and lead) is the usual chemistry check on a new well.
Water test when a home is soldNot required statewide
No statewide requirement. The Missouri seller's disclosure asks only whether the water supply is a private well and whether the seller knows of problems. FHA, VA and USDA loans normally require a bacteria, nitrate and lead sample from a certified lab before closing.
What the state recommends
The Department of Health and Senior Services recommends testing a private well every year for coliform bacteria, and every few years for nitrate, pH, hardness, iron, manganese, lead and copper (the State Public Health Laboratory's minerals, nutrients and metals panel covers all of these plus arsenic and uranium). Add radon and radium in the Ozarks, lead and cadmium in the Old Lead Belt and Viburnum Trend mining districts, sulfate and chloride in deep northern wells, pesticides in shallow Bootheel wells, and test again after flooding, well work or a change in taste, color or smell. Karst wells and springs in the Ozarks should be retested after heavy rain.
Free or low-cost testingAvailable
No free program, but the cheapest state lab in the country: the State Public Health Laboratory tests a private well or cistern sample for total coliform and E. coli for a $10 handling fee. Pick up the kit from your local public health agency or district health office, collect the sample and hand it back for the lab's free statewide overnight courier. Chemistry panels cost more and are ordered through the same agency or the Bureau of Environmental Epidemiology (573-751-6102).
Getting your water tested near Clinton County
Clinton County has no certified lab within 40 miles, so most owners here test by mail. Order bottles from a certified lab, sample from the cold tap before any treatment, and ship the same day with an ice pack.
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Licensed well contractors serving Clinton County
Licensed help in Clinton County includes Allens Holdings and Investment DBA Evans Energy and Brute LLC and 2 others. Every listing was matched to the Missouri license list; the "verify" link on each profile opens the state lookup.
4 licensed contractors
Brute LLC
Verified license
License 006709 Active
- Pump Installation
- Pump Repair
- Well Abandonment
- Well Drilling
- Well Repair
DWR Drilling LLC
Verified license
License 004289 Active
- Geothermal
- Pump Installation
- Pump Repair
- Well Abandonment
- Well Drilling
- Well Repair
Jesse Yoakum Well Drilling
Verified license
License 002231 Active
- Geothermal
- Pump Installation
- Pump Repair
- Well Abandonment
- Well Drilling
- Well Repair
Well depth and water chemistry
Well depth and water chemistry in Clinton County follow the rock underneath it. Typical wells here run 50 to 120 feet; the median of 89 domestic wells certified to the Missouri Geological Survey since 2000 is 60 feet. Contaminants worth testing for in this part of Missouri include coliform bacteria (the most common failure statewide, worst in ozark karst wells and springs after rain), nitrate (shallow wells in farm country, the bootheel and northern missouri).
Typical well depth
50 to 120 feet; the median of 89 domestic wells certified to the Missouri Geological Survey since 2000 is 60 feet
Contaminants to test for
- Coliform bacteria (the most common failure statewide
- Worst in Ozark karst wells and springs after rain)
- Nitrate (shallow wells in farm country
- The Bootheel and northern Missouri)
- Hardness (dolomite across the Ozarks)
- Iron and manganese (glacial till
- Alluvium and Bootheel sands)
- Radon and radium (locally in the Ozark aquifer)
- Lead
- Cadmium and zinc (Old Lead Belt
- Viburnum Trend and Tri-State mining districts)
- Sulfate
- Chloride and sodium (deep bedrock wells in northern and western Missouri)
- Arsenic (locally)
- Pesticides (shallow Bootheel and river-bottom wells)
- PFAS near airfields and industrial sites
Neighboring counties: De Kalb County, Caldwell County, Ray County, Clay County.
What well work costs in Clinton County
Basic bacteria and nitrate test$25 to $75lab fee, homeowner sample
Full panel lab test$150 to $400metals, VOCs, radiologicals
Well inspection$250 to $550flow, pressure, visual, water test
Submersible pump replacement$1,200 to $4,500parts and labor
Pressure tank replacement$400 to $1,200installed
Whole-house treatment system$800 to $6,000softener, iron filter, UV, RO
New well drilled$5,500 to $25,000about $25 to $65 per foot
Shock chlorination$80 to $300or about $20 as a DIY job
National ranges from published 2025 to 2026 contractor pricing. Local quotes vary with depth, access and materials.
Questions Clinton County well owners ask
How many homes in Clinton County are on a well?
About 220, or 3% of households, based on Census housing data and state well surveys. The share is highest outside the towns with public water.
Where is the closest certified lab to Clinton County?
There is no certified lab within 40 miles. Use a mail-in kit from a Missouri certified lab, or the county health department if it collects samples.
Do I need a permit to drill a well in Clinton County?
No permit for the owner, but the well must be built by a Missouri permitted well installation contractor to the 10 CSR 23-3 standards for its drilling area (Missouri has 13 drilling areas with different minimum casing depths, grouted casing, 50 ft from a septic tank and 100 ft from a lagoon or drainfield), and the contractor must disinfect the well, take a water sample for bacteria after construction and file a well certification report with the Missouri Geological Survey within 60 days. The State Public Health Laboratory's New Well Series (pH, fluoride, chloride, nitrate, sulfate, iron, manganese and lead) is the usual chemistry check on a new well.
What does a well test cost near Clinton County?
A bacteria and nitrate test runs $25 to $75 at most certified labs; a full panel with metals is $150 to $400. Mail-in kits cost about the same as walking in.