Emergency Sewage Treatment Plant Repair: Failed Installation Recovery in Cheshire

Case Study

20 Apr

When a sewage treatment plant fails, swift professional action is essential.

We recently completed an emergency repair for a client in Cheshire whose package sewage treatment plant had catastrophically failed, causing foul sewage to discharge onto their property.

Following an urgent inquiry and subsequent site visit, our team identified critical installation failures in the existing sewage package treatment plant:

Improper installation by previous contractor – The treatment plant had been installed by a local builder without proper ground anchoring
No concrete base or surround – The unit lacked the necessary concrete installation to resist external ground pressures
Ground movement damage – External ground pressures caused the treatment plant to 'pop out of the ground', lifting the entire unit
Sewage discharge – Foul sewage was discharging directly onto the surrounding ground, creating a health hazard and environmental risk

The Solution: Professional Sewage Treatment Plant Reinstatement

After assessing the damage, we determined that the treatment plant itself remained structurally sound and could be professionally reinstated. Our solution included:

Complete excavation and repositioning of the sewage treatment plant
Proper concrete base and surround installation to prevent future ground movement
Reconnection to existing inlet and outlet drainage systems
Full compliance with current Building Regulations
Electrical certification and sign-off

Swift Completion: 3-Day Emergency Repair

Understanding the urgency of sewage system failures, we prioritised this project:

Quote provided: Same day following site visit
Work commenced: 16th March 2026
Project completed: 19th March 2026
Total duration: 3 working days
Certification supplied: Building Regulations compliance and electrical certification

The client's sewage treatment system is now functioning correctly with proper installation standards that will prevent future failures.

Why Proper Sewage Treatment Plant Installation Matters

This case highlights the importance of professional installation for off-mains drainage systems. Common mistakes include:

Insufficient concrete surround – Treatment plants require proper concrete anchoring to resist ground movement and flotation
Incorrect depth or positioning – Improper installation can lead to structural failure and system malfunction
Non-compliant installations – Work must meet Building Regulations and include proper certification

Expert Off-Mains Drainage Services in Cheshire and Beyond

With over 25 years of experience, Envirocare Off-Mains provides professional sewage treatment plant installation, repair, and maintenance services throughout Cheshire, Staffordshire, Shropshire, and the surrounding areas.

Our Services Include: