Discover the Ortec Environnement Alzéo Ouest agency

Sustainable, controlled sediment management solutions
Ortec Environnement teams support you in managing sediments from rivers, canals, ports and basins. These environments are naturally subject to progressive siltation, a phenomenon intensified by:

• Flat topography
• Low flow rates
• Erosion processes
• Urban and industrial discharges

Technical solutions tailored to each site
To address these challenges, we deploy proven, scalable processes adapted to site conditions and treatment volumes:

• Sediment pumping and dredging
• Network unclogging to restore hydraulic flow
• Sludge and sediment flocculation to accelerate separation
• Dewatering of flocculated materials using filter boxes, geocontainers, lagoons or settling basins
• Water treatment and clarification to enable compliant discharge into the natural environment
• Removal of materials through approved appropriate disposal or recovery channels

Waste reduction and controlled environmental impact
Our methods are part of a responsible, eco-conscious approach with a clear objective: reducing waste volumes for our clients and for the planet.

The Ortec Group draws on extensive know-how and a wide range of technical expertise to deliver customized industrial cleaning solutions. From one-off interventions to comprehensive “Clean Plant” contracts, our teams implement a broad spectrum of manual and mechanized techniques tailored to industrial environments. This ensures long-term reliability and performance of your facilities while safeguarding the integrity of your processes.

Our teams are CATEC-certified (Certificate of Aptitude for Working in Confined Spaces) and hold the required electrical authorizations for work on lift pumps and electrical panels.

Our sanitation and cleaning services include:

• Individual and collective sanitation systems: all-water tanks, septic tanks, grease traps, soakaways
• Network unclogging (all types)
• High-pressure cleaning of wastewater and stormwater pipes using recycling hydro-jetting units
• Cleaning of stormwater inlets and collection grates
• Lift stations
• Maintenance, repair, or replacement of lift pumps
• Pumping and cleaning of retention basins, lagoons and tanks
• Digester cleaning and grit chamber maintenance
• Cleaning of ballast tanks, holds and cargo residues
• High-pressure surface cleaning and treatment (concrete floors, walls, pedestrian areas, etc.)

These processes deliver multiple benefits and support our core objective: reducing waste volumes for our clients while minimizing environmental impact.

Comprehensive sewer and stormwater network diagnostics
As specialists in wastewater and stormwater network diagnostics, we offer a complete service combining advanced technologies, certified interventions and in-depth defect analysis.

Diagnostic services include:

• CCTV inspections using high-definition cameras with integrated zoom to detect defects (cracks, collapses, root intrusion, etc.)
• Network watertightness testing to verify system compliance
• Compaction testing of trenches and backfill to ensure structural stability

Our equipment enables precise detection of anomalies, even in hard-to-access areas. Thanks to CATEC certification, our teams can operate safely in all types of confined networks.

End-to-end support for your networks
We deliver a global diagnostic approach through complementary services:

• Pre-inspection hydro-jetting to ensure optimal inspection conditions
• Geolocated inspections with XYZ positioning and parasitic water detection
• Georeferencing of buried networks
• Tracing of existing networks
• Connection testing using smoke, fluorescein or UV methods
• Creation or updating of AutoCAD DWG / GIS network plans
• Detailed inspection reports with defect analysis
• Costed proposals for rehabilitation or compliance works

 
Technical expert assessments
We also intervene as part of:

• Insurance expert assessments (damage, infiltration issues, etc.)
• Court-appointed expert investigations supporting legal proceedings

Accidental pollution incidents can have serious consequences for human health, the environment and economic activity. Ortec teams are trained, equipped and ready to respond rapidly to any type of environmental emergency.

Rapid pollution response – 24/7
We can mobilize the necessary resources within very short timeframes to respond effectively to:

• Road accidents involving pollutant leaks
• Fires generating toxic runoff or residues
• Accidental spills of hazardous substances
• Fuel transfer incidents (overflows, transfer errors, etc.)
• Hydrocarbon pollution: diesel, fuel oil, gasoline and other fuels
• Leaks from domestic or industrial fuel tanks
• Pollution of natural environments: groundwater, wells, rivers, lagoons
• Collection of floating waste in port and marine areas

 
Immediately deployable human and technical resources
Our teams are specifically trained for environmental emergency response and have access to:

• Ready-to-use equipment stored in intervention containers
• Vehicles and containment and pumping systems
• 24/7 intervention capability across Western France

A rigorous methodology to limit impacts
Each intervention follows a strict priority sequence:

1. Securing the polluted area
2. Containing leaks or hazardous materials
3. Collecting and treating waste while minimizing volumes and environmental impact

Private fuel distribution facilities are subject, depending on storage capacity and annual throughput, to mandatory regulatory inspections and controls.

We also perform leak detector verification and integrity testing of fuel tanks and pipelines.

Our teams are qualified to carry out regulatory controls and petroleum works for service stations, industrial sites and private clients, including:

• Pumping and maintenance of oil separators
• Cleaning of hydrocarbon tanks and containers
• Cleaning, degassing and neutralization of tanks and compartments
• Acoustic leak testing of tanks
• Leak detection system inspections on double-wall tanks
• Leak detection
• Pipeline flushing and degassing
• Event purging
• Lagoon pumping
• Work on ICPE-classified facilities