ENVIRONMENTAL DRILLING SERVICES

Numac Drilling Services are Australia's premier environmental drillers and drilling contractors. Our company operates a fleet of 6 Geoprobe® machines from depots in Melbourne, Brisbane and Sydney which service all metropolitan and rural areas. All of our highly experienced environmental and geotechnical drilling operators are Certificate III qualified and hold minimum Class 1 Water-Well licences.

With the addition of sonic drill rigs to our fleet, we now offer the most effective solutions for landfill sampling and installation. Our suite of HRSC tools for real-time delineation of Volatile Organic Compounds (VOCs) ensures we can provide a more comprehensive ground investigation and site assessment than other environmental assessment contractors and environmental drilling companies in Australia. Download Environmental Drilling Services PDF here.


Facilitate accurate site conceptual modeling with high density in-situ, real time data capture.

Facilitate accurate site conceptual modeling with high density in-situ, real time data capture.

HIGH RESOLUTION Site CHARACTERIsATION (HRSC) 

  • Membrane Interface Probe (MIP) — In-situ gas testing for VOCs

  • Ultra-Violet Optical Screening Tool (UVOST) — Detection of free phase (LNAPL) hydrocarbons through laser-induced fluorescence

  • Hydraulic Profiling Tool (HPT) —  Identification of preferential pathways through hydraulic conductivity and electrical conductivity (EC)

  • High-resolution data to prepare conceptual site models (CSM) for the effective remediation of contaminated soils and groundwater.


Undisturbed push tube soil sampling with duel tube and conventional Geoprobe systems.

Undisturbed push tube soil sampling with duel tube and conventional Geoprobe systems.

DIRECT PUSH SAMPLING

  • Powerful Geoprobe7822 track mounted top drive direct push machines

  • DT235 dual tube tooling allows continuous undisturbed sampling without risk of cross contamination

  • Sample presented in polyvinyl liner for ease of logging

 


Numac Drilling Services are environmentally-conscious drilling contractors. We source many of our well materials from recycled materials.

Numac Drilling Services are environmentally-conscious drilling contractors. We source many of our well materials from recycled materials.

MONITORING WELL INSTALLATION

  • Where available Numac uses recycled and/or biodegradable consumables

  • All well materials meet Australian standards, PVC to Stainless steel

  • Pre-packed well screens

  • Recycled plastic well covers and J-caps

  • Soil gas monitoring and recovery wells

  • All drillers hold minimum Class 1 Water-Well licence

  • Class 2 and 3 drillers available as per project requirements

  • Biodegradable well bailers and low flow tubing.


Down the hole hammer drilling breaks hard rock formations into small flakes for easy extraction.

Down the hole hammer drilling breaks hard rock formations into small flakes for easy extraction.

ROTARY AIR & DOWN HOLE HAMMER (Rock drilling)

  • 75mm to 200mm diameter drilling through all rock formations

  • Depths of up to 400m

  • Trailer, 4x4 and sloop mounted compressors

  • Cyclone and dust suppression and automated rod handling systems.


An exposed SP16 screen in 1.5 inch Geoprobe® rod. Collects groundwater samples from unconsolidated materials from near surface to over 30 metres below ground level.

An exposed SP16 screen in 1.5 inch Geoprobe® rod. Collects groundwater samples from unconsolidated materials from near surface to over 30 metres below ground level.

SP16 IN-SITU GROUNDWATER SAMPLING

  • Target discreet section of formation for groundwater sample

  • Fast and cost-effective

  • Bottom up grouting

  • Effective in sands, clay and silts

  • Sustainable and avoids waste disposal.


PRE PACKED WELL INSTALLATION

50mm pre-packed well with stainless screens. Consists of a slotted PVC well screen pipe surrounded by stainless steel mesh.

50mm pre-packed well with stainless screens. Consists of a slotted PVC well screen pipe surrounded by stainless steel mesh.

  • High-quality well installation in collapsing sands and silts

  • Faster and more efficient well installation

  • Eliminates risk of ineffective gravel pack placement

 


Our standard hollow stem augers (HSA) are 108 mm ID (194mm OD) and 156mm ID (244mm OD).

Our standard hollow stem augers (HSA) are 108 mm ID (194mm OD) and 156mm ID (244mm OD).

SOLID AND HOLLOW STEM AUGERS

  • Solid stem auger drilling up to 30mbgl

  • Hollow auger ID up to 158mm for 50mm and 100mm well installations

  • Geoprobe® 7822DT Track-mounted auger rigs (powerful difficult access machines)

  • Solid Stem augers up to 250mm diameter.


HYDRO EXCAVATION

Avoid damage and disruption to services with hydro excavation. This is a non-destructive excavation method available in Melbourne, Sydney, Brisbane and Australia-wide.

Avoid damage and disruption to services with hydro excavation. This is a non-destructive excavation method available in Melbourne, Sydney, Brisbane and Australia-wide.

  • Choose from truck or trailer-mounted units

  • All spoil diverted to drums for secure storage and removal

  • The safest method of clearing drilling locations.

 


 

LANDFILL INVESTIGATION & EXTRACTION

  • Installation of wells for extraction and monitoring of methane in and around landfill sites.

  • Real time, in-situ delineation of methane migration using Membrane Interface Probe.

  • Sonic drilling rigs for installation of leech-ate bores deep into landfill. Sonic drilling will provide full sample recovery in all types of fill materials.

  • Delineation landfill fires using real time temperature probe.

  • Installation of methane extraction systems for power-plants.

Contact Australia's premier environmental drillers and drilling contractors here.