Services
Built on Precision. Backed by Experience.
At Marksmann Drilling, LLC, we specialize in a wide range of environmental and geotechnical drilling services designed to meet the unique needs of each project. With a proven track record across Florida and the Southeast, our team is equipped to handle diverse ground conditions, complex specifications, and tight deadlines. Whether you're planning a site investigation, installing monitoring wells, or collecting geotechnical data, we deliver solutions you can count on with safety, efficiency, and accuracy at the forefront.
Rotary Drilling
Rotary is a versatile drilling method ideal for deeper holes or when groundwater is present. We circulate drilling mud to stabilize the borehole, remove cuttings, and protect sensitive formations.
Advantages:
✔ Suitable for a wide range of soil and rock conditions
✔ Efficient for deep boreholes
✔ Supports various sampling and well installation methods
Percussion Drilling
Percussion drilling involves repeatedly striking the ground with a heavy drill bit to break up soil and rock, making it effective for penetrating hard formations. It’s commonly used in well installation and subsurface investigations.
Advantages:
✔ Effective in hard or boulder-rich soils
✔ Minimal water usage compared to rotary methods
✔ Simple equipment with low maintenance
Rotary-Percussion Drilling
Rotary-percussion drilling combines rotary drilling with high-frequency percussive force to efficiently break and penetrate hard rock and dense formations. Ideal for challenging subsurface conditions requiring both speed and power.
Advantages:
✔ Excels in hard rock and fractured zones
✔ Faster drilling rates in difficult geology
✔ Enables both sampling and well installation
Hollow Stem Auger (HSA) Drilling
HSA drilling allows us to obtain soil samples without introducing fluids into the borehole. It's particularly useful for environmental projects requiring uncontaminated samples and easy monitoring well installation.
Ideal for:
✔ Shallow environmental sampling
✔ Temporary and permanent well installations
✔ Contaminated sites
Mud Rotary Drilling
Mud rotary is a versatile drilling method ideal for deeper holes or when groundwater is present. We circulate drilling mud to stabilize the borehole, remove cuttings, and protect sensitive formations.
Advantages:
✔ Effective in loose or sandy soils
✔ Supports large-diameter boreholes
✔ Allows for continuous drilling with minimal collapse risk
Geotechnical Drilling
Our geotechnical drilling services support structural and civil engineering projects by providing accurate data on subsurface conditions. We offer boreholes, SPT, Shelby tube sampling, and more.
Support for:
✔ Residential and commercial development
✔ Retaining wall and slope analysis
✔ Pavement design and rehabilitation
Environmental drilling
Environmental drilling is used to investigate, monitor, and remediate subsurface contamination. It supports soil and groundwater sampling, well installation, and site characterization in a safe, compliant manner.
Advantages:
✔ Enables accurate subsurface data collection
✔ Supports regulatory compliance and risk assessment
✔ Compatible with various drilling methods and site conditions
Direct Push / Soil Boring / and Hand Augers
Direct Push, Soil Boring, and Hand Augers are commonly used environmental drilling methods for subsurface sampling, site assessment, and well installation. Each offers unique advantages depending on site conditions, depth requirements, and project scale.
Support for:
✔ Direct Push – Rapid, minimally invasive, and ideal for high-resolution sampling without generating drill cuttings
✔ Soil Boring – Versatile and effective for collecting soil profiles, supporting both environmental and geotechnical applications
✔ Hand Augers – Portable, low-cost, and perfect for shallow investigations in soft to medium soils without the need for power equipment
Well Abandonment (Residential & Commercial)
Well Abandonment (Residential & Commercial) involves the safe and compliant decommissioning of unused or obsolete wells to prevent groundwater contamination and eliminate physical hazards. Methods follow regulatory guidelines to ensure long-term environmental protection.
Advantages:
✔ Prevents cross-contamination between aquifers
✔ Eliminates safety and liability risks
✔ Meets local and state regulatory compliance
✔ Applicable for old residential wells and inactive commercial/industrial wells
Well Installation (Residential & Commercial)
Well Installation (Residential & Commercial) involves the professional design and construction of wells for water supply, monitoring, or remediation. Each installation is tailored to site conditions and project goals, ensuring long-term performance and compliance.
Support for:
✔ Reliable access to clean groundwater for residential or industrial use
✔ Supports environmental monitoring and remediation efforts
✔ Customizable to site geology and regulatory standards
✔ Durable construction for long-term functionality and safety
Air Sparge Wells
Our air sparge wells are designed to inject pressurized air into saturated soils, encouraging volatilization and biodegradation of pollutants. This process helps clean contaminated groundwater, especially in sites impacted by fuel or solvents.
Advantages:
✔ Effective VOC remediation
✔ Complements soil vapor extraction (SVE)
✔ Low-impact and cost-effective
Vapor Extraction Wells
We install vapor extraction wells that remove subsurface vapors through vacuum extraction systems. These are critical components in soil vapor remediation systems, removing petroleum hydrocarbons and industrial solvents from unsaturated zones.
Applications:
✔ Brownfield redevelopment
✔ Industrial spill sites
✔ Dry cleaner site remediation
Monitor Well Installation
Marksman Drilling LLC specializes in installing groundwater monitoring wells for environmental site assessments, regulatory compliance, and contamination tracking. We provide wells at varying depths using appropriate casing materials to ensure long-term integrity. These wells support periodic water sampling, plume monitoring, and hydrogeological studies.
Advantages:
✔ Environmental site investigations (Phase II ESA)
✔ Groundwater quality assessments
✔ Contamination plume delineation
Double-Cased Wells
We offer double-cased well construction for locations with multiple aquifers or unstable soils. This method protects the outer annulus and allows precise sampling of targeted formations while preventing cross-contamination.
Why it matters:
✔ Complies with strict environmental regulations
✔ Ensures well stability in difficult formations
✔ Suitable for sensitive or industrial sites
Chemical Environmental Injections
Our Direct Push Technology (DPT) chemical injection service delivers precise in-situ treatment of contaminated soils and groundwater. This method is highly effective for remediating volatile organic compounds (VOCs), petroleum hydrocarbons, and other pollutants.
Advantages:
✔ Targeted delivery with minimal surface disruption
✔ Ideal for tight access or sensitive sites
✔ Compatible with a wide range of remedial agents
✔ Real-time injection control for optimized results
Monitor Well Installation
Marksman Drilling LLC specializes in installing groundwater monitoring wells for environmental site assessments, regulatory compliance, and contamination tracking. We provide wells at varying depths using appropriate casing materials to ensure long-term integrity. These wells support periodic water sampling, plume monitoring, and hydrogeological studies.
Advantages:
✔ Environmental site investigations (Phase II ESA)
✔ Groundwater quality assessments
✔ Contamination plume delineation
Air Sparge Wells
Our air sparge wells are designed to inject pressurized air into saturated soils, encouraging volatilization and biodegradation of pollutants. This process helps clean contaminated groundwater, especially in sites impacted by fuel or solvents.
Advantages:
✔ Effective VOC remediation
✔ Complements soil vapor extraction (SVE)
✔ Low-impact and cost-effective
Vapor Extraction Wells
We install vapor extraction wells that remove subsurface vapors through vacuum extraction systems. These are critical components in soil vapor remediation systems, removing petroleum hydrocarbons and industrial solvents from unsaturated zones.
Applications:
✔ Brownfield redevelopment
✔ Industrial spill sites
✔ Dry cleaner site remediation
Deep Wells
Our team is equipped to drill and construct deep monitoring or production wells for clients requiring access to deeper groundwater zones. These wells are essential in regions with complex stratigraphy or where shallow wells are insufficient.
Capabilities:
✔ Drilling beyond 100 ft (custom depths)
✔ Casing and screen installation
✔ Pump and test setup (if needed)
Double-Cased Wells
We offer double-cased well construction for locations with multiple aquifers or unstable soils. This method protects the outer annulus and allows precise sampling of targeted formations while preventing cross-contamination.
Why it matters:
✔ Complies with strict environmental regulations
✔ Ensures well stability in difficult formations
✔ Suitable for sensitive or industrial sites
Shelby Tube Sampling
Our Shelby tube sampling service collects high-quality, undisturbed soil samples ideal for lab testing. This method is essential in determining shear strength, consolidation, and permeability characteristics of fine-grained soils.
Advantages:
✔ Smooth-wall, thin-walled tubes
✔ Ideal for clay, silt, and soft formations
✔ Minimizes sample disturbance
Soil Borings
We perform soil borings to extract and analyze subsurface soil layers for geotechnical and environmental projects. This method provides data on soil classification, stratigraphy, and potential contamination.
Project examples:
✔ Foundation design
✔ Bridge and road construction
✔ Environmental baseline studies
Split Spoon Sampling (SPT)
We conduct Standard Penetration Tests (SPT) using split spoon samplers to determine soil density and bearing capacity. This widely accepted field test helps engineers design safe and cost-effective structures.
Delivered data:
✔ Blow counts (N-values)
✔ Soil texture and moisture
✔ Grain size distribution
Mud Rotary Drilling
Mud rotary is a versatile drilling method ideal for deeper holes or when groundwater is present. We circulate drilling mud to stabilize the borehole, remove cuttings, and protect sensitive formations.
Advantages:
✔ Effective in loose or sandy soils
✔ Supports large-diameter boreholes
✔ Allows for continuous drilling with minimal collapse risk
Hollow Stem Auger (HSA) Drilling
HSA drilling allows us to obtain soil samples without introducing fluids into the borehole. It's particularly useful for environmental projects requiring uncontaminated samples and easy monitoring well installation.
Ideal for:
✔ Shallow environmental sampling
✔ Temporary and permanent well installations
✔ Contaminated sites
Geotechnical Drilling
Our geotechnical drilling services support structural and civil engineering projects by providing accurate data on subsurface conditions. We offer boreholes, SPT, Shelby tube sampling, and more.
Support for:
✔ Residential and commercial development
✔ Retaining wall and slope analysis
✔ Pavement design and rehabilitation
SPT (Standard Penetration Test)
This in-situ test measures soil resistance to penetration using a split spoon sampler and drop hammer. It provides engineers with key data to assess load-bearing capacity and settlement characteristics.
Ideal for:
✔ Foundation design
✔ Earthwork calculations
✔ Soil classification
Shelby Tubes
For projects requiring undisturbed samples, we offer Shelby tube extraction using hydraulic push methods. These samples are ideal for lab-based soil behavior testing.
Used in:
✔ Triaxial shear testing
✔ Consolidation tests
✔ Permeability analysis
Well Logging Service
We offer detailed well logging including lithologic logging, depth recording, and water level monitoring. Our logs help clients better understand site geology and aquifer characteristics.
Deliverables:
✔ Lithologic descriptions
✔ Screen and casing depths
✔ Groundwater elevation logs
Double Ring Infiltration Test
We perform ASTM-compliant double ring infiltration tests to measure how quickly water moves through soil. This is crucial for stormwater management, septic system placement, and drainage design.
Outcome:
✔ Permeability rate in inches/hour
✔ Soil saturation behavior
✔ Surface infiltration performance
Well Abandonment (All Sizes)
We provide full-service well decommissioning that meets all regulatory standards. Our process includes removing casing, sealing the borehole, and documenting the abandonment.
Why it's important:
✔ Prevents groundwater contamination
✔ Eliminates liability risks
✔ Complies with environmental regulations
DPT Chemical Injection
Our Direct Push Technology (DPT) chemical injection service delivers precise in-situ treatment of contaminated soils and groundwater. This method is highly effective for remediating volatile organic compounds (VOCs), petroleum hydrocarbons, and other pollutants.
Advantages:
✔ Targeted delivery with minimal surface disruption
✔ Ideal for tight access or sensitive sites
✔ Compatible with a wide range of remedial agents
✔ Real-time injection control for optimized results
Equipment List – Marksman Drilling LLC
2000 CME 55 HT
Auto Hammer
Winch line and much more
2010 6620 Geoprobe
Track Rig, Off-Road Abilities
Macro Core
Split Spoon
Winch line and much more
2001 International 26 ft Box Truck
Lift Gate – Service
2000 International 26 ft Box Truck
Lift Gate – Service
2000 Ford F-350
Flat Bed
2001 Ford F-350
Regular Bed
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22 ft Trailer
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8 x 10 Box Trailer
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Labeled as 10K
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14K Trailer