# The Cambridge Waste Water Treatment Plant Relocation Order 2025, Part 7: TERTIARY TREATMENT PLANT (WORK No. 13)


(1) Item
(2) Maximum design parameter
Finished ground level (+ or – 0.5m)
9.5m AOD
Depth of filtration plant
4.5m AOD (5m below FGL)
Foundation depth
-15.5m AOD (25m below FGL)
Height of filtration plant
19.5m AOD (10m above FGL)
Ferric dosing plant area
20m x 12m
Ferric dosing plant: height
17m AOD (7.5m above FGL)
Overall footprint of tertiary treatment plant
60m x 40m

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Source: https://www.legislation.gov.uk/uksi/2025/452/schedule/14/part/7 (the official version)
Page: https://openlegislation.uk/cambridge-waste-water-treatment-plant-relocation-order-2025/schedule-14/part-7
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.