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.
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.
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
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.
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.
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
High-quality well installation in collapsing sands and silts
Faster and more efficient well installation
Eliminates risk of ineffective gravel pack placement
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.