Wastewater Disposal, Blockage Management, and Maintenance Response
How we manage wastewater disposal in our accommodation
- Purpose
This procedure ensures that:
- All wastewater in Blackfriars Hall accommodation is removed through appropriate trapped connections to the sewerage system.
- All installations and systems comply with UK statutory requirements.
- Blockages and maintenance requests are being handled efficiently, safely, and consistently.
- Statutory Compliance
All wastewater disposal systems must comply with:
- Building Regulations 2010 – Approved Document H (Drainage & Waste Disposal)
- Water Industry Act 1991
- Water Supply (Water Fittings) Regulations 1999
- Health and Safety at Work Act 1974
- Local Thames Water requirements (for sewer connections and discharges)
- Ensuring Proper Wastewater Disposal Through Trapped Connections
3.1 Installation Standards
All fixtures (sinks, showers, WCs, basins, dishwashers, washing machines, floor drains) must:
- Be connected via appropriate water traps (e.g., P?trap, bottle trap, S?trap).
- Maintain a minimum 50 mm water seal to prevent backflow of odours.
- Be connected to the foul water system, not storm drains.
- Use pipework and fittings compliant with Building Regulations Part H.
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3.2 Inspection and Verification
Facilities staff must ensure that:
- All traps are present, secure, and accessible for clearing.
- Pipe falls/slopes support correct flow (self?cleansing gradient).
- No cross-connections or direct untrapped connections exist.
- Anti?siphon measures (ventilation or air admittance valves) are in place where required.
3.3 Routine Monitoring
- Monthly (WCS/Clearwater): Visual inspections of accessible traps and pipework as part of routine monthly water management and maintenance.
- Quarterly (WCS/Clearwater): Functional checks for slow draining, gurgling, or odour issues.
- Annually: Review of the wastewater system and external access points, with appropriate contractor input.
Findings are recorded in the Every management system.
- Resident Responsibilities
Residents must:
- Dispose of waste responsibly (no wipes, grease, food scraps, sanitary products, or foreign items).
- Report blockages, slow drainage, leaks, or odours immediately.
- Use facilities as instructed in the accommodation guidelines.
Failure to follow proper use guidelines may result in disciplinary process if misuse is proven.
- Procedure for Managing Blockages
5.1 Reporting a Blockage
Residents must report issues via:
- Blackfriars Hall Bursary email address (bursary@bfriars.ox.ac.uk)
- Emergency contact numbers for out?of?hours incidents
Reports should include:
- Location
- Description of the issue
- Severity (slow drain, partial blockage, full blockage, overflow)
- Time first noticed
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5.2 Initial Assessment (Within 2 Hours for Urgent Cases)
Facilities staff classify the issue as:
- Routine – slow drainage, non-urgent blockages
- Urgent – complete blockage of a single fixture, strong odours
- Emergency – flooding, sewage backup, multiple fixtures affected
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5.3 Response Procedure
Routine Blockage
- Inspect pipe, trap, and outlet.
- Attempt clearing using plungers or basic drain tools.
- If unresolved, escalate to approved plumbing contractor (within 24 hours).
Urgent Blockage
- Temporarily isolate affected fixtures if required.
- Attempt mechanical clearance (rodding/auger).
- If unsuccessful after one hour, call external contractor.
Emergency Blockage
- Immediately isolate the area.
- Prevent access to unsafe spaces.
- Contact emergency plumbing contractor.
- Facilities staff coordinate clean?up, disinfection, and restoration of safe conditions.
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5.4 Post?Clearance Actions
- Test drainage flow.
- Inspect traps and pipework to ensure compliance.
- Record actions taken in the Facilities Maintenance Log.
- Identify and record any cause (misuse, structural defect, external blockage).
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- Repairs and Maintenance Procedure
6.1 Standard Repairs
- Non?urgent repairs completed within 48 hours where possible.
- Replacement components must comply with Part H and water fitting regulations.
- After repair, the system must be tested for proper flow, correct trapping, and leak?free operation.
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6.2 Major System Issues
If there is a system failure, repeated blockage, or structural defect:
- Conduct a detailed inspection (CCTV survey if required).
- Provide residents with updates about downtime and alternative facilities.
- Complete repairs as soon as reasonably practicable.
- Record findings and actions in the Annual Wastewater System Review.
- Record-Keeping
Facilities staff must maintain:
- Logs of all inspections
- Blockage reports and response times
- Contractor reports and invoices
- Annual compliance audit records
- Records of any resident misuse (if applicable)
- Review and Continuous Improvement
- This procedure is reviewed annually or following any significant incident.
- Updates incorporate regulatory changes, contractor advice, and operational findings.
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