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Title 40

Displaying title 40, up to date as of 10/13/2026. Title 40 was last amended 10/13/2026.
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§ 455.23 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT).

Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology: The limitations for BOD, TSS and pH are the same as those specified in 40 CFR 455.22.

BCT Effluent Limitations

Effluent Limitations

Pollutant or pollutant property Maximum for any one day** Average of daily values shall not exceed**
BOD5 7.400 1.6000
TSS 6.100 1.8000
pH * *
* Within the range 6.0 to 9.0
** Metric units: Kilogram pollutant/1,000 kg of total organic active ingredients.
English units: Pound pollutant/1,000 lb of total organic active ingredients

[58 FR 50689, Sept. 28, 1993]