# The Cambridge Waste Water Treatment Plant Relocation Order 2025, Part 8: SLUDGE STORAGE CAPACITY (WORK No. 8)


(1) Item
(2) Number
(3) Maximum design parameter
(4) Maximum height
Finished ground level (+ or – 0.5m)
9m AOD
Imported and indigenous primary sludge tanks
2
Maximum sludge capacity of 1,295m3 each
Subject to maximum sludge capacity, maximum 16.5m diameter
Subject to maximum sludge capacity, 17.5m AOD (8.5m above FGL)
Foundation depth
Piles to a depth of -16m AOD (25m below FGL)
Un-thickened sludge tanks
3
Maximum sludge capacity of 1,327m3 each
Subject to maximum sludge capacity, maximum 16.5m diameter
Subject to maximum sludge capacity, 17.5m AOD (8.5m above FGL)
Foundation depth
Piles to a depth of -16m AOD (25m below FGL)
Imports and screening area
80m x 50m
17.5m AOD (8.5m above FGL)
(excluding vent stack, see Part 10 below)

---
Source: https://www.legislation.gov.uk/uksi/2025/452/schedule/14/part/8 (the official version)
Page: https://openlegislation.uk/cambridge-waste-water-treatment-plant-relocation-order-2025/schedule-14/part-8
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.