TerraForma Drilling Turned a Detailed Bore Specification Into Four Monitoring-Ready Installations
4 monitoring bores installed to consultant specification in 2 days at a Northern Beaches Sydney property. PVC casing, screen intervals, filter pack, and bore construction records.
The Challenge: Four Bores Built to a Defined Specification
A geotechnical and environmental consultant engaged TerraForma Drilling to install four groundwater monitoring bores on a coastal property in Sydney's Northern Beaches.
Each bore needed to align perfectly with the consultant's construction schedule, meeting strict requirements for casing dimensions, screen placement, filter pack intervals, bentonite sealing, and flush-to-ground finishes.
Site conditions brought extra complexity, with bore locations scattered throughout a mature garden and one challenging spot set on a sloping section of the property.
The consultant needed Groundwater well installed precisely to specification in Sydney, ensuring the monitoring programme could move forward without delay.
The Solution: Executing the Bore Construction Plan from Depths Below to Surface Finish
We followed the consultant's nominated locations and detailed bore specifications throughout the intensive two-day field programme.
Each borehole was drilled to its precise depth, then fitted with the required PVC casing and screen. Every detail (from screen and filter pack to grout and surface finish) was carefully executed to meet the consultant's exact requirements.
The field programme included:
- Drilling four boreholes at the consultant-nominated locations, including the sloped garden area.
- Installing PVC casing and screen intervals to the specified depths and lengths.
- Placing granular filter pack material around each nominated screen interval.
- Sealing the annular space above the filter pack with bentonite.
- Installing flush-to-ground surface completions in accordance with the consultant's specification.
- Preparing bore construction records showing installation depths, casing and screen dimensions, and filter pack and grout intervals.
Upon completion, these detailed records were promptly delivered to the commissioning consultant.
The Outcome: Monitoring Bores Set for Seamless Transition to the Next Project Phase
All four groundwater monitoring bores were installed to exact specification within just two field days, even tackling the challenging sloped section with precision.
The completed bore construction records captured every detail, from screen placement to casing and construction intervals. With everything built right the first time, the consultant's team could immediately begin groundwater sampling and monitoring as planned.
Why Installation Details Matter in Groundwater Monitoring Bores
A monitoring bore must accurately reflect groundwater conditions at the exact interval the consultant wants to investigate. This makes following the construction specification every bit as crucial as the drilling process itself.
Every step (screen placement, filter pack, annular sealing, casing, and surface finish) must follow the nominated design. For Groundwater well installation to consultant specification in Sydney, disciplined bore construction ensures the installation is ready for the consultant's monitoring and sampling programme.
“We had specific requirements for the screen depths, filter pack and bore completion, and TerraForma followed our construction schedule throughout. All four bores were installed as specified.”
Frequently Asked Questions
Yes. TerraForma Drilling provides piezometer installation to consultant specification in Sydney, working from consultant-issued bore construction schedules that define requirements such as bore depth, casing and screen placement, filter pack intervals, sealing, and surface completion.
Bore construction records can document details such as installation depth, casing and screen dimensions, screen placement, filter pack intervals, and grout intervals. These records provide the commissioning consultant with a record of how each monitoring bore was constructed.
Site conditions are assessed against the investigation requirements and available drilling equipment. In this Northern Beaches project, TerraForma Drilling successfully installed monitoring bores across an established garden, including a consultant-nominated location on a sloping section of the property.
From Bore Specification to a Monitoring-Ready Installation
We follow consultant-issued bore construction schedules for groundwater monitoring, delivering expert drilling, meticulous installation, and exhaustive construction records to drive the next stage of your investigation.