Regulations last checked for updates: Nov 25, 2024

Title 40 - Protection of Environment last revised: Nov 21, 2024
All TitlesTitle 40Chapter IPart 430Subpart E - Subpart E—Papergrade Sulfite Subcategory
View all text of Subpart E [§ 430.50 - § 430.58]
§ 430.52 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).

(a) Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT):

Subpart E

[Bisulfite liquor/surface condensers; BPT effluent limitations for papergrade sulfite facilities where blow pit washing techniques are used]

Pollutant or pollutant property Kg/kkg (or pounds per 1,000 lb) of
product
Continuous dischargers Non-continuous dischargers (annual
average)
Maximum for any 1 day Average of daily values for 30 consecutive days
BOD531.816.559.30
TSS43.9523.6512.99
pH( 1)( 1)( 1)

1 Within the range of 5.0 to 9.0 at all times.

Subpart E

[Bisulfite liquor/barometric condensers; BPT effluent limitations for papergrade sulfite facilities where blow pit washing techniques are used]

Pollutant or pollutant property Kg/kkg (or pounds per 1,000 lb) of
product
Continuous dischargers Non-continuous dischargers (annual
average)
Maximum for any 1 day Average of daily values for 30 consecutive days
BOD534.718.0510.14
TSS52.228.115.44
pH( 1)( 1)( 1)

1 Within the range of 5.0 to 9.0 at all times.

Subpart E

[Acid sulfite liquor/surface condensers; BPT effluent limitations for papergrade sulfite facilities where blow pit washing techniques are used]

Pollutant or pollutant property Kg/kkg (or pounds per 1,000 lb) of
product
Continuous dischargers Non-continuous dischargers (annual
average)
Maximum for any 1 day Average of daily values for 30 consecutive days
BOD532.316.89.44
TSS43.9523.6512.99
pH( 1)( 1)( 1)

1 Within the range of 5.0 to 9.0 at all times.

Subpart E

[Acid sulfite liquor/barometric condensers; BPT effluent limitations for papergrade sulfite facilities where blow pit washing techniques are used]

Pollutant or pollutant property Kg/kkg (or pounds per 1,000 lb) of
product
Continuous dischargers Non-continuous dischargers (annual
average)
Maximum for any 1 day Average of daily values for 30 consecutive days
BOD535.5518.510.39
TSS52.228.115.44
pH( 1)( 1)( 1)

1 Within the range of 5.0 to 9.0 at all times.

Subpart E

[Bisulfite liquor/surface condensers; BPT effluent limitations for papergrade sulfite facilities where vacuum or pressure drums are used to wash pulp]

Pollutant or pollutant property Kg/kkg (or pounds per 1,000 lb) of
product
Continuous dischargers Non-continuous dischargers (annual
average)
Maximum for any 1 day Average of daily values for 30 consecutive days
BOD526.713.97.81
TSS43.9523.6512.99
pH( 1)( 1)( 1)

1 Within the range of 5.0 to 9.0 at all times.

Note: Limitations above do not apply to mills using continuous digesters.

Subpart E

[Bisulfite liquor/barometric condensers; BPT effluent limitations for papergrade sulfite facilities where vacuum or pressure drums are used to wash pulp]

Pollutant or pollutant property Kg/kkg (or pounds per 1,000 lb) of
product
Continuous dischargers Non-continuous dischargers (annual
average)
Maximum for any 1 day Average of daily values for 30 consecutive days
BOD529.415.38.60
TSS52.228.115.44
pH( 1)( 1)( 1)

1 Within the range of 5.0 to 9.0 at all times.

Note: Limitations above do not apply to mills using continuous digesters.

Subpart E

[Acid sulfite liquor/surface condensers; BPT effluent limitations for papergrade sulfite facilities where vacuum or pressure drums are used to wash pulp]

Pollutant or pollutant property Kg/kkg (or pounds per 1,000 lb) of
product
Continuous dischargers Non-continuous dischargers (annual
average)
Maximum for any 1 day Average of daily values for 30 consecutive days
BOD529.7515.58.71
TSS43.9523.6512.99
pH( 1)( 1)( 1)

1 Within the range of 5.0 to 9.0 at all times.

Note: Limitations above do not apply to mills using continuous digesters.

Subpart E

[Acid sulfite liquor/barometric condensers; BPT effluent limitations for papergrade sulfite facilities where vacuum or pressure drums are used to wash pulp]

Pollutant or pollutant property Kg/kkg (or pounds per 1,000 lb) of
product
Continuous dischargers Non-continuous dischargers (annual
average)
Maximum for any 1 day Average of daily values for 30 consecutive days
BOD532.516.99.49
TSS52.228.115.44
pH( 1)( 1)( 1)

1 Within the range of 5.0 to 9.0 at all times.

Note: Limitations above do not apply to mills using continuous digesters.

Subpart E

[Continuous digesters; BPT effluent limitations for papergrade sulfite facilities where vacuum or pressure drums are used to wash pulp]

Pollutant or pollutant property Kg/kkg (or pounds per 1,000 lb) of
product
Continuous dischargers Non-continuous dischargers (annual
average)
Maximum for any 1 day Average of daily values for 30 consecutive days
BOD538.1519.8511.15
TSS53.7528.9515.91
pH( 1)( 1)( 1)

1 Within the range of 5.0 to 9.0 at all times.

(b) The following limitations establish the quantity or quality of pollutants or pollutant properties, controlled by this section, resulting from the use of wet barking operations, which may be discharged by a point source subject to the provisions of this subpart. These limitations are in addition to the limitations set forth in paragraph (a) of this section and shall be calculated using the proportion of the mill's total production due to use of logs which are subject to such operations:

Subpart E

[BPT effluent limitations for papergrade sulfite facilities where blow pit washing techniques are used]

Pollutant or pollutant property Kg/kkg (or pounds per 1,000 lb) of
product
Continuous dischargers Non-continuous dischargers (annual
average)
Maximum for any 1 day Average of daily values for 30 consecutive days
BOD52.71.450.80
TSS7.53.952.19
pH( 1)( 1)( 1)

1 Within the range of 5.0 to 9.0 at all times.

Subpart E

[BPT effluent limitations for papergrade sulfite facilities where vacuum or pressure drums are used to wash pulp]

Pollutant or pollutant property Kg/kkg (or pounds per 1,000 lb) of
product
Continuous dischargers Non-continuous dischargers (annual
average)
Maximum for any 1 day Average of daily values for 30 consecutive days
BOD53.051.60.90
TSS7.53.952.19
pH( 1)( 1)( 1)

1 Within the range of 5.0 to 9.0 at all times.

(c) The following limitations establish the quantity or quality of pollutants or pollutant parameters, controlled by this section, resulting from the use of log washing or chip washing operations, which may be discharged by a point source subject to the provisions of this subpart. These limitations are in addition to the limitations set forth in paragraph (a) of this section and shall be calculated using the proportion of the mill's total production due to use of logs and/or chips which are subject to such operations:

Subpart E

[BPT effluent limitations for papergrade sulfite facilities where blow pit washing techniques are used]

Pollutant or pollutant property Kg/kkg (or pounds per 1,000 lb) of
product
Continuous dischargers Non-continuous dischargers (annual
average)
Maximum for any 1 day Average of daily values for 30 consecutive days
BOD50.150.10.05
TSS2.551.350.75
pH( 1)( 1)( 1)

1 Within the range of 5.0 to 9.0 at all times.

Subpart E

[BPT effluent limitations for papergrade sulfite facilities where vacuum or pressure drums are used to wash pulp]

Pollutant or pollutant property Kg/kkg (or pounds per 1,000 lb) of
product
Continuous dischargers Non-continuous dischargers (annual average)
Maximum for any 1 day Average of daily values for 30 consecutive days
BOD50.350.20.1
TSS2.551.350.75
pH( 1)( 1)( 1)

1 Within the range of 5.0 to 9.0 at all times.

(d) The following limitations establish the quantity or quality of pollutants or pollutant properties, controlled by this section, resulting from the use of log flumes or log ponds, which may be discharged by a point source subject to the provisions of this subpart. These limitations are in addition to the limitations set forth in paragraph (a) of this section and shall be calculated using the proportion of the mill's total production due to use of logs which are subject to such operations:

Subpart E

[BPT effluent limitations for papergrade sulfite facilities where blow pit washing techniques are used]

Pollutant or pollutant property Kg/kkg (or pounds per 1,000 lb) of
product
Continuous dischargers Non-continuous dischargers (annual
average)
Maximum for any 1 day Average of daily values for 30 consecutive days
BOD50.350.20.1
TSS1.70.90.5
pH( 1)( 1)( 1)

1 Within the range of 5.0 to 9.0 at all times.

Subpart E

[BPT effluent limitations for papergrade sulfite facilities where vacuum or pressure drums are used to wash pulp]

Pollutant or pollutant property Kg/kkg (or pounds per 1,000 lb) of
product
Continuous dischargers Non-continuous dischargers (annual
average)
Maximum for any 1 day Average of daily values for 30 consecutive days
BOD50.70.350.2
TSS1.700.90.5
pH( 1)( 1)( 1)

1 Within the range of 5.0 to 9.0 at all times.

authority: Sections 301, 304, 306, 307, 308, 402, and 501 of the Clean Water Act, as amended, (33 U.S.C. 1311,1314,1316,1317,1318,1342,and,and,as.S.C. 7412)
source: 63 FR 18635, Apr. 15, 1998, unless otherwise noted.
cite as: 40 CFR 430.52
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