G Stow are experts in boreholes and offer a CCTV investigation survey. Mobile CCTV survey units can carry out a visual inspection of boreholes and wells from 65mm diameters up to 300m depth. Working nationally, wherever you’re located we can help.
Why Choose a CCTV Survey?
- Inspection of newly constructed boreholes
- To illustrate the quality of work, verify construction records and to offer customer assurance
- Periodic inspection to determine the existing borehole/well condition and thereby propose refurbishment, remedial or preventative maintenance programs
- After service, the inspection verifies cleaning works and repairs as well as track and monitor well conditions and compliance.
- Pre-purchase inspection to establish the condition of a borehole or well at the transfer of ownership
- Groundwater monitoring
- Determine quality, geological strata, fissures and water producing zones
- Recover lost equipment by locating and facilitating the retrieval of lost equipment down the borehole.
- Sealing and abandonment of boreholes and wells in order to abandon a borehole it is vital to understand the construction details. Often these are not available in which case a CCTV survey can provide sufficient details to enable our engineers to provide site-specific proposals to meet Environment Agency requirements.
- Location and identification of obstructions. Before you can attempt to clear an obstruction you need to understand what it is and how it got there.
- Sand pumping. In certain circumstances the CCTV camera can be deployed into the borehole under pumping conditions to locate sand inflow and assist in any remedial works.
Dual camera system
Dual wide angle cameras, one side view and one down view, with remote switching and continuous 360 degree rotation
High intensity lighting
50 super bright, water-clear LEDs allow high resolution images
300m of Kevlar reinforced coaxial cable
Accurate digital on-screen depth counter in meters
Portable power supply
When power is unavailable on sites a 12v DC battery with charger and voltmeter is used.
Recorded on a digital recorder on site and also available in real time through a 180mm LCD colour monitor. Still images can also be taken to show particular features of the borehole for record purposes.
Extremely compact and portable equipment allows surveys to be undertaken in the most inaccessible areas, where vehicular access is not possible. The equipment is moved into position on a small compact two-wheeled trolley containing the powered reel and display equipment.
Camera equipment can be deployed and set up in minutes.
A detailed report prepared by one of our highly experienced staff, containing still images of key features and borehole construction is provided along with a DVD for achieve purposes.
Health and safety
Our site staff all hold National Water Hygiene cards, confined space entry accreditation and CSCS skills card enabling them to access any site.