The Challenge
Routine inspections identified that the filter within a forecourt surface water interceptor had become heavily saturated with oil.
When interceptor filters become contaminated, their ability to effectively separate oil from surface water is significantly reduced. This can increase the risk of pollution incidents, environmental non-compliance, and potential contamination of downstream drainage systems.
The client required a safe and effective replacement of the filter to restore the interceptor’s performance and ensure continued environmental protection.
Our Solution
Following an assessment of the interceptor, our team proposed a full filter replacement using confined space entry procedures and specialist lifting equipment.
Given the location of the filter within the interceptor chamber, the works required a man-entry operation and careful handling to ensure the saturated filter could be removed safely and replaced with a new unit.
Delivering the Works
Our engineers attended site and implemented a controlled confined space operation to access the interceptor chamber.
The works included:
- Tanker attendance to remove liquid from the chamber and provide safe access
- Confined space entry using an A-frame and winch system
- Removal of the saturated interceptor filter
- Installation of a replacement filter
- Reinstatement of the filter into the interceptor chamber
- Refilling and commissioning of the interceptor system
- Secure bagging and removal of the contaminated waste filter for disposal
All works were completed in accordance with safe working procedures and environmental best practice.
The Outcome
The replacement filter restored the interceptor’s ability to effectively manage contaminated surface water runoff and separate hydrocarbons before discharge.
By carrying out the replacement promptly, the client was able to maintain compliance and reduce the environmental risks associated with a saturated interceptor system.
Key Benefits Delivered
- Safe confined space access and operation
- Removal of heavily contaminated interceptor filter
- Installation of new replacement filter
- Restoration of interceptor performance
- Reduced environmental risk
- Improved pollution prevention controls
- Continued compliance with environmental requirements
- Safe removal and disposal of contaminated materials
Why This Matters
Interceptors play a critical role in preventing oil, fuel, and hydrocarbon contaminants from entering drainage systems and the wider environment.
Over time, filters can become saturated and lose their effectiveness, increasing the likelihood of pollution incidents and potential regulatory issues.
Proactive inspection and maintenance of interceptor systems helps organisations minimise environmental risk, maintain compliance, and protect drainage infrastructure from contamination.
Services Delivered
- Interceptor Maintenance
- Interceptor Filter Replacement
- Confined Space Operations
- Environmental Compliance Support
- Vacuum Tanker Services
- Pollution Prevention
- Drainage & Wastewater Infrastructure Maintenance
Client Benefit
By safely replacing the saturated interceptor filter, we restored the effectiveness of the client’s pollution prevention system, helping to protect the environment, maintain compliance, and ensure the interceptor continued to operate as intended.
