RIIM Quality & Track Record — PAS-128 & ASCE 38-22
Quality & Track Record
Standards That Save Lives.
Every RIIM survey is delivered to PAS-128 and ASCE 38-22 — the international benchmarks for subsurface utility engineering. Our quality system is not a box-tick. It is the foundation of every project we deliver.
Our Compliance Framework
International Standards
PAS 128:2022 — Specification for underground utility detection, verification and location
PAS-128 is the British Standards Institution's specification for subsurface utility engineering. It defines four quality levels (D, C, B, A) and mandates the survey methods, equipment calibration, data processing, and reporting requirements for each. RIIM delivers to PAS-128 Quality Level B as standard, with Quality Level A (physical exposure) available on request.
Compilation of existing utility records and historical data.
Visual inspection and surface feature identification.
GPR and EPL surveys to detect and map buried utilities.
Trial holes and vacuum excavation to physically verify utility position.
Trusted By
Trusted By
Our client list reads like a who's who of GCC energy and infrastructure. These relationships are built on consistent delivery, not just approvals.
Exclusive approved SUE contractor for Bahrain's national energy company.
Approved survey contractor for Tatweer's operational areas.
Approved contractor for SEC's transmission and distribution programmes.
Active delivery on NEOM's infrastructure development programme.
Approved contractor for the Electricity and Water Authority.
Subsurface utility surveys for upstream oil and gas operations.
Case Studies
Project Highlights
BAPCO Refinery Utility Mapping
Full PAS-128 QL-B utility survey of the Sitra refinery complex — over 120km of utility routes mapped using GPR and EPL, with 3D BIM model deliverable.
NEOM Infrastructure Corridor
Pre-construction subsurface utility survey for a major NEOM infrastructure corridor. GPR, EPL, and 12D modelling delivered to ASCE 38-22 QL-B.
SEC Transmission Network Survey
Multi-site GPR and EPL survey programme covering SEC's high-voltage transmission network. Georeferenced utility plans delivered in AutoCAD and GIS formats.
Tatweer Petroleum Field Survey
Comprehensive subsurface utility survey of Tatweer's operational field areas. PAS-128 QL-B survey with depth profiling and conflict mapping.
Bahrain Road Development Programme
Utility detection and mapping in support of a national road development programme. GPR and EPL surveys across multiple sites, with integrated utility plans.
Marine Pipeline Survey — Arabian Gulf
Nearshore marine geophysics survey to detect and map buried pipelines and cables in the Arabian Gulf. Sub-bottom profiling and side-scan sonar.
Quality You Can Rely On
Every RIIM deliverable is quality-checked against PAS-128 and ASCE 38-22 before it leaves our office. Talk to us about your project requirements.
Discuss Your Project