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The Tougas wastewater treatment plant. In 2009, all the purifi cation equipment was fully compliant, with a 100 % performance compliance rate for purifi cation works. STATION D'ÉPURATION Number of assessments Number of assess-ments revealing compliance Compliance rate Wastewater treatment facility compliance (%) Wastewater treatment
Table 9.1 Typical headlosses across various treatment units 75 Table 10.1 Odour thresholds of common odourous gases 79 Table 10.2 Odour potential from waste water treatment processes 80 Table 10.3 A-weighting adjustments 81 Table 10.4 Conversion of octave levels to A-weighted levels 82 Table 10.5 Approximate range of noise reduction 83
