# The Cambridge Waste Water Treatment Plant Relocation Order 2025, Part 11: DIGESTERS (WORK No. 8)


(1) Item
(2) Number
(3) Maximum design parameter
(4) Maximum diameter
(5) Maximum height
Finished ground level (+ or – 0.5m)
9m AOD
Digesters capacity
2
4,900m3
22m
30.4m AOD (21.4m above FGL)
Post digestion storage capacity
2
400m3
8.5m
18.5m AOD (9.5m above FGL)
Heating, pasteurisation and hydrolysis (HpH) heating tank capacity
1
400m3
7m
24m AOD (15m above FGL)
Heating, pasteurisation and hydrolysis (HpH) pasteurisation tank capacity
2
400m3
7m
24m AOD (15m above FGL)
Heating, pasteurisation and hydrolysis (HpH) hydrolysis tank capacity
1
1,500m3
14m
24m AOD (15m above FGL)
Overall footprint of digestion plant area
100m x 60m
30.4m AOD (21.4m above FGL)
Depth of piled foundations
-16 AOD (25m below FGL)
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Source: https://www.legislation.gov.uk/uksi/2025/452/schedule/14/part/11 (the official version)
Page: https://openlegislation.uk/cambridge-waste-water-treatment-plant-relocation-order-2025/schedule-14/part-11
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.