Overview
Drainage surveys are an essential service for anyone responsible for the maintenance of a drainage system, providing critical information about the system's condition and enabling effective maintenance and repair decisions.
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Process
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What Our Customers Say
The team at Mara Surveys were very efficient, on time and thorough.
Without them we wouldn’t have been to adhere to our timescales. Thanks guys.
The team at Mara Surveys were very efficient, on time and thorough.
Without them we wouldn’t have been to adhere to our timescales. Thanks guys.
The team at Mara Surveys were very efficient, on time and thorough.
Without them we wouldn’t have been to adhere to our timescales. Thanks guys.
The team at Mara Surveys were very efficient, on time and thorough.
Without them we wouldn’t have been to adhere to our timescales. Thanks guys.
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Case Studies
Popular Services
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An essential part of any design or construction project is understanding the location and depth of services within, and adjoining, a site. Mara Surveys can provide consultation on PAS128 requirements for your project.
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Ground Penetrating Radar (GPR) is a required geotechnical technique used in PAS128 Utility Surveys, but it’s not just limited to that. We also utilise different systems to identify buried foundations, voids, sinkholes, cellars, underground storage tanks and rebar (internal and external).
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Using our hand held GPR system we are able to locate and position rebar, slab depths, post tension cables and voids such as chimney flues. This system is ideal for internal building projects.
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Mara Surveys can post process GPR data collected by third parties using a variety of data processing softwares.
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A requirement of a PAS128 Utility Survey is to provide a report of the infrastructure owned by Statutory Providers that are within the vicinity of a project. We can provide a report collating these ‘stats’ for any size of project within the UK.
Learn MoreFrequently Asked Questions
What is a PAS128 Survey?
A document that standardises the equipment, techniques and deliverables of a utility survey. This increases the clients’ confidence in the quality and accuracy when supplied drawings and reports.
Can you find everything underground?
Not always. Although the equipment we use is the latest technology and we have years of experience using these systems - both GPR and EML still have their limitations. We can usually locate services, voids and other anomalies up to 2 metres deep. However, reductive conditions for GPR, such as saturated ground, heavy clay and street cobbles can affect or even negate results. For EML (electromagnetic locators), cut cables, abandoned metallic pipe work, ‘balanced’ or oil filled HV cables and fibre optics can all be difficult to locate and position.
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