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NI Water Annual Information Return 2020 2021 Table 17f Sewerage Explanatory Factors Sewage Treatment Works - Costs
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NI Water Annual Information Return 2020 2021 Table 17b Sewerage Explanatory Factors Sewage Treatment Works - Large Works Information Database
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NI Water Annual Information Return 2020 2021 Table 17d Sewerage Explanatory Factors Sewage Treatment Works - Loads
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NI Water Annual Information Return 2020 2021 Table 17c Sewerage Explanatory Factors Sewage Treatment Works - Numbers
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NI Water Annual Information Return 2020 2021 Table 17a Sewerage Explanatory Factors Sewerage Sub - Area Explanatory Factors
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NI Water Annual Information Return 2020 2021 Table 17g Sewerage Explanatory Factors Sludge Treatment and Disposal Information
