Design levels from KSA 6997-KSA-03-XX-DR-C-0001 S4-G · to be updated to as-built at handover
CCG
IMPERIAL FIELDS – RESIDENTIAL BLOCK
Drainage chamber record · Bishopsford Road, Morden SM4 6BF
SURFACE WATER
S3.2
Polypropylene inspection chamber 475 dia
NON-ENTRY CHAMBERToo small to enter – all work from the surface (rods, jetting, CCTV camera).

Key data · levels: design (KSA S4-G)

Cover level20.450
Invert level19.750
Depth0.700 m
Chamber475 Ø
Pipe100 Ø
Cover classB125

Section through chamber

B125 coverID platebenching with channel at invertINOUT 100ØCL 20.450IL 19.7500.700 mIllustrative, not to scale · 475 Ø polypropylene inspection chamber · levels in m (drawing datum)

Where it is

Location of S3.2
Extract of KSA drainage layout – S3.2 circled red.

Inspection & maintenance

Carried out byAppointed third-party maintenance team
  1. Yearly: lift cover and check the channel and pipes are free of silt and debris.
  2. Jet the pipes if silted or flow is slow.
  3. Record every visit in the log below (date, name, findings, action) with photos.

CCTV survey

Report refTo be completed at handover
Survey date—
Video—

Handover record – where CCG finished

Practical CompletionTo be completed at handover
Defects period endsTo be completed at handover
Handover inspectionTo be completed at handover
Condition at handoverTo be completed at handover
Silt at handover—
As-built levels verifiedTo be completed at handover
ID plate fittedTo be completed at handover

Inspection log

DateBy (company / name)Silt / conditionAction takenNext due