Optimum Techniques for Contracting · Dammam
Experts in HDPE Geomembrane Installation
MWAN-licensed landfill lining contractor working to Saudi Aramco, SABIC and Royal Commission HSE standards, serving industrial and environmental clients across Saudi Arabia.
Waste Management Licence
Licence No.
005701
- Issued by
- National Center for Waste Management (MWAN)
- Sub-activity
- Landfill Lining
- Approved capacity
- 7,000 m² per day
- Valid until
- 03-08-2027
MWAN 005701
Waste Management Licence
7,000 m²/day
Approved capacity
GRI-GM13 & ASTM D4437
Material and testing standards
Aramco · SABIC · RC
HSE standards we work to
CR 2050187266
Commercial Registration
Dammam
Eastern Province
Core services
From material supply to tested, documented handover, as a direct contractor or as a specialist lining subcontractor.
HDPE geomembrane supply & installation
HDPE geomembrane to GRI-GM13, supplied with manufacturer certificates and installed, welded and tested by our own crew.
Learn moreGeotextile installation
Geotextile protection layers supplied and installed with the geomembrane, to protect the liner during construction and operation.
Learn moreSeam welding: fusion (wedge) & extrusion
Automatic wedge welding for field seams and extrusion welding for details, corners and penetrations, using our own welders.
Learn moreLeak detection & quality assurance testing
Vacuum box and spark testing, peel and shear tests, documented repairs, and coordination of leak location surveys.
Learn moreLiner repair & maintenance
Patch repairs with extrusion welding, testing of every repair, and support after handover.
Learn moreSite preparation & consultancy
Lining-related site preparation and technical advice, with civil scope delivered through our partner civil contractor.
Learn moreIndustries we serve
HDPE geomembrane lining for environmental and industrial containment.
- Landfills
- Hazardous waste containment
- Evaporation ponds and RO reject ponds
- Wastewater ponds and lagoons
- Balancing basins and sludge drying beds
- Water reservoirs and irrigation ponds
- Aquaculture and fish farm ponds
- Canals
- Secondary containment and tank-farm bunds
- Mining and tailings ponds
- Petrochemical and industrial facilities
MWAN-licensed landfill lining
Landfill lining to MWAN requirements
MWAN's landfill guidelines set a minimum geomembrane for each landfill category and require every liner to be installed, tested and documented under an approved CQA plan.
Reference: MWAN TG-WM-05 (2), Standards & Technical Guidelines for the Design, Construction and Operation of Landfills, 01 November 2024.
| Category | Landfill type | Geomembrane layer |
|---|---|---|
| 1 | Hazardous wasteمردم النفايات الخطرة | Minimum 2.5 mm HDPE, OR double liner with leak detection: 2.0 mm HDPE + geocomposite drainage layer + 2.0 mm HDPE |
| 2 | Non-hazardous wasteمردم النفايات غير الخطرة | Minimum 1.5 mm HDPE |
| 3 | Inert wasteمردم النفايات الخاملة | Geomembrane not required (depends on the liner system used) |
Final thickness follows the approved design and may be increased based on the project's risk assessment.
QA/QC, testing and equipment
Testing & QA/QC
- Non-destructive testing: vacuum box, spark testing
- Destructive testing: peel and shear tests
- Trial welds before production welding
- Third-party validation upon request
- Compliance with ASTM D4437 and GRI-GM13
- Detailed daily reporting and handover documentation
Our own equipment
- Automatic wedge welders (fusion welding)
- Extrusion welders (detail work, corners, penetrations)
- Hot air guns
- Spark testers and vacuum box leak detectors
- Tensiometer for peel and shear testing
- Sheet rollers, cutters and ancillary tools
- Calibration certificates for testing equipment available on request
Safety
Lining work combines heavy rolls, hot welding tools and slippery slopes. We plan and control it to the HSE standards of Saudi Aramco, SABIC and the Royal Commission.
- Job Safety Analysis (JSA) for all tasks
- PPE enforcement and daily safety briefings
- Emergency response protocols
- Compliance with Saudi Aramco, SABIC and Royal Commission standards
- Manufacturer-trained welding technicians
- Regular safety and skill evaluations
- ISO-compliant documentation
Some of our clients & partners
- King Fahd University of Petroleum & Minerals (KFUPM)
- Riadat Almamoura International Company (RAIC)
- Rowad
- Al-Khaldi Real Estate
We guarantee our workmanship and support our clients after handover.
Contact us
Call or WhatsApp us, email, or send your project details through the quotation form.
- General enquiries
- info@optechsco.com
- Sales & quotations
- Use the quotation form on this page, or email info@optechsco.com
- Careers / HR
- hr@optechsco.com
National address
Optimum Techniques for ContractingEastern Chamber Investment TowerBuilding No. 3030, Unit 3Additional No. 6512Al Hussam District, Dammam 34223Eastern Province, Kingdom of Saudi ArabiaThe map loads from Google Maps when you choose to show it.