Surveys
Onsite India provides a full and comprehensive CCTV Survey and Asset Data Collection services that is designed to offer a “One Stop Service” in Sewer surveys. We offer a wide range of highly specialised survey services that include the following:
- CCTV Surveys, includes:
- High quality CCTV inspections of pipelines and other enclosed structures
- Digital video recording using the latest technology.
- Fully coded reports with strict quality control.
- Long and Short Term Flow Surveys
- Asset Data Collection Surveys , including:
- Combined Sewer Overflows Asset Data Collection
- Pumping Station: Asset Data Collection
- Surface Water Pollution Surveys.
Our SURVEY Solutions :
OnSite has been operating Closed Circuit Television (CCTV) systems since 1977 and has been instrumental in establishing the UK standard methods of reporting upon defects observed within sewerage systems. OnSite has developed its own quality CCTV surveying systems, based around low light, high resolution colour cameras and continues to develop equipment for use world wide.
This wealth of experience enables OnSite to offer the comprehensive services listed below:
- Surveys fully remote controlled, axial viewing or pan and tilt cameras
- Surveys carried out in all types of pipelines and other enclosed ancillaries/structures e.g. boreholes, shafts, piles, oil lines, bridge columns etc
- All reports generated to international sewer coding standards or tailored to suit client’s needs
- Computer validation of all data
- Structural and service condition grading and ranking reports
- Surveys and reports can be produced digitally onto CD or DVD format
Long and short term flow surveys with the capability to carry out associated water quality surveys.
OnSite worked closely with the Water Research Centre (WRC) to pioneer techniques for open channel flow measurement during late 1970’s. The procedures developed formed the basis of the Model Contract Document and the codes of practice are still being used internationally today.
This wealth of experience enables OnSite to offer the comprehensive services listed below:
- Living Web: One can now monitor the flow from anywhere in the world on the internet. Real time data like depth, velocity, temperature, DO, Ph etc., can be accessed.
- OnSite has designed and developed its own system of monitoring the sewer/ drains flow and other data on real time basis
- Standard short term flow surveys
- Long term flow measurement
- Accurate flow measurement in large diameter pipes using the latest ADFM technology
- Project management and planning capability
- Extensive inventory of intrinsically safe gauges
- Rainfall distribution studies
- Sewer and treatment plant quality monitoring
- Trade effluent flow monitoring and verification
Waste Water Quality Quality Sampling and Monitoring
- Laboratory facility for sample analysis
- Continuous water quality monitoring
- DO, pH, ammonia, conductivity and temperature
- In house calibration and maintenance facility
The GPS Service is designed to meet the diverse needs of the civil engineering industry.
All of our surveyors are fully qualified in the following:
- Roads & Streetworks safety procedures
- Safe Working In Confined Spaces
- Use of electronic data capture equipment
OnSite uses top of the range frequency GPS equipment for a number of years on a wide range of projects. This wealth of experience enables OnSite to offer the comprehensive services listed below:
- Asset location and attribute information captured directly on site by GPS and recorded using mobile GIS
- Position solutions (x,y,z) from sub-metre accuracy using single frequency DGPS
- All surveys tied to Ordnance Survey via the National GPS network, using the latest transformations (OSTN02/OSGM02)
- Delivery and maintenance of a GIS or database system for recording any type of asset location and condition, and for assessing asset provision and requirements.
- Data delivered in a wide range of industry standard formats to meet the
Investigation into the cause of pollution from surface water outfalls due to misconnections or other causes.
This wealth of experience enables OnSite to offer the Water Industry the Comprehensive services listed below:
- Outfall and catchments inspection for evidence of pollution
- Installation of non intrusive solid traps at strategic points throughout the catchments
- Full reports in digital format of pollution found at outfalls and in manholes
- CCTV surveys can then be used to identify the areas of cross contamination and mis-connections
- Recommendations can be made as to the cause of the pollution and any remedial actions required
- Impermeable area surveys produced in a GIS format enable the client to quickly establish the characteristics of the catchment
- Existing sewer records can be checked for errors and full manhole cards can be produced
- Survey teams specializing in man entry survey can be mobilized where large diameter pipes are involved
A full and comprehensive asset data collection service designed to offer a one stop service in sewer surveys.
This wealth of experience enables Onsite to offer the Water Industry the comprehensive services listed below:
- Full manhole and outfall surveys in accordance with the Model Contract Document, using the latest GPS techniques
- Surveyed information can be supplied in standard STC format or alternatively, in a digital format, depending on the client’s requirement
- Full pumping station/ CSO and other ancillary surveys using the latest techniques in confined space entry
- Full or schematic drawings produced in AutoCad or other specific formats
- Impermeable area surveys produced in paper or GIS format
- Infiltration and exfiltration surveys
- Pollution and connectivity surveys where a fast and efficient survey is required to locate misconnections and other cross contaminations
- Short and long term sewer flow surveys
- Internal inspections of the sewer network using CCTV, sonar or man entry to establish the structural or service condition of the drainage system
- Conventional topographical surveys of treatment plants and other sites using the latest GPS techniques
SPECIALISED ASSET DATA COLLECTION SURVEYS :
1. COMBINED SEWER OVERFLOWS ASSET DATA COLLECTION
A full and comprehensive asset data collection service designed to offer a one stop services in combined sewer overflow surveys. This wealth of experience enables OnSite to offer the water industry the comprehensive services listed below:
- Full CSO surveys
- Schematic CSO drawings produced in AutoCad or other specified formats
- Short or long term flow surveys installed within CSO structure
- CCTV surveys of associated pipe work to ascertain structural and service condition
- Outfall location using the latest GPS equipment, electronically providing an accurate location of the main sewer line and specific chambers, if required
- Installation of CSO telemetry utilizing the latest flow monitoring or ultrasonic
2. PUMPING STATION ASSET DATA COLLECTION
A full and Comprehensive asset data collection service designed to offer a one stop service in pumping station surveys.
This wealth of experience enables OnSite to offer the Water Industry the Comprehensive services listed below:
- Full pumping station surveys
- Pump draw down tests to establish DWF/pumping capacity and levels for start/stop pump operation and high level alarm
- Rising main pressure and voltage clamp testing
- Full or schematic pumping station drawings produced in AutoCad or other specific formats
- Rising main location using the latest GPS equipment, electronically providing an accurate location of the main and specific chambers, if required
- NDT(Non Destructive Testing) of the main to indicate its structural condition
- Energy efficiency of pumps calculated and location of ‘hot spots’ within the electronic equipment identified
