CFR > Title 40 - Protection of Environment > CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY > SUBCHAPTER N—EFFLUENT GUIDELINES AND STANDARDS (Parts 400–471) > PART 437—THE CENTRALIZED WASTE TREATMENT POINT SOURCE CATEGORY > SUBPART D—Multiple Wastestreams (§437.40 to §437.47) > 437.45—New source performance standards (NSPS).

437.45—New source performance standards (NSPS).

(a) Except as provided in § 437.40(b), any new source subject to this subpart which combines treated or untreated wastes from subparts A, B, or C of this part may be subject to Multiple Wastestream Subcategory effluent limitations representing the application of NSPS set forth in paragraphs (b), (c), (d), or (e) of this section if the discharger agrees to the following conditions in its NPDES permit:
(1) The discharger will meet the applicable Multiple Wastestream Subcategory limitations set forth in paragraphs (b), (c), (d) or (e) of this section;
(2) The discharger will notify its NPDES permit writer at the time of submitting its application for permit, of its desire to be subject to the Multiple Waste Subcategory by submitting to the NPDES permit writer an initial certification statement as described in § 437.41(a) ;
(3) The discharger will submit to its NPDES permitting authority a periodic certification statement as described in § 437.41(b) once a year; and
(4) The discharger will maintain at the office of the facility and make available for inspection the on-site compliance paperwork as described in § 437.41(c).
(b) Combined waste receipts from subparts A, B and C of this part. (1) As provided in § 437.45(a), any new source subject to this paragraph must achieve the following performance standards:
Performance Standards
Regulatedparameter Maximum daily 1 Maximum monthly avg. 1
Conventional Parameters
BOD 5 163 53.0
O&G 127 38.0
pH (2) (2)
TSS 29.6 11.3
Metal Parameters
Antimony 0.111 0.0312
Arsenic 0.0993 0.0199
Cadmium 0.0172 0.0102
Chromium 0.167 0.0522
Cobalt 0.182 0.0703
Copper 0.659 0.216
Lead 0.350 0.160
Mercury 0.000641 0.000246
Nickel 0.794 0.309
Selenium 0.176 0.0698
Silver 0.0318 0.0122
Tin 0.0955 0.0367
Titanium 0.0159 0.00612
Vanadium 0.0628 0.0518
Zinc 0.657 0.252
Organic Parameters
Acetone 30.2 7.97
Acetophenone 0.114 0.0562
Bis(2-ethylhexyl) phthalate 0.215 0.101
2-Butanone 4.81 1.85
Butylbenzyl phthalate 0.188 0.0887
Carbazole 0.598 0.276
o-Cresol 1.92 0.561
p-Cresol 0.698 0.205
n-Decane 0.948 0.437
Fluoranthene 0.0537 0.0268
n-Octadecane 0.589 0.302
Phenol 3.65 1.08
Pyridine 0.370 0.182
2,4,6-Trichlorophenol 0.155 0.106
1 mg/L (ppm).
2 Within the range 6 to 9.
(2) The following in-plant limitations apply to metal-bearing wastewater containing cyanide:
In-Plant Limitations
Regulatedparameter Maximum daily 1 Maximum monthly avg. 1
Cyanide 500 178
1 mg/L (ppm).
(c) Combined waste receipts from subparts A and B of this part. (1) As provided in § 437.45(a), any new source subject to this paragraph must achieve the following standards:
Performance Standards
Regulatedparameter Maximum daily 1 Maximum monthly avg. 1
Conventional Parameters
O&G 127 38.0
pH (2) (2)
TSS 29.6 11.3
Metal Parameters
Antimony 0.111 0.0312
Arsenic 0.0993 0.0199
Cadmium 0.0172 0.0102
Chromium 0.167 0.0522
Cobalt 0.182 0.0703
Copper 0.659 0.216
Lead 0.350 0.160
Mercury 0.000641 0.000246
Nickel 0.794 0.309
Selenium 0.176 0.0698
Silver 0.0318 0.0122
Tin 0.0955 0.0367
Titanium 0.0159 0.00612
Vanadium 0.0628 0.0518
Zinc 0.657 0.252
Organic Parameters
Bis(2-ethylhexyl) phthalate 0.215 0.101
Butylbenzyl phthalate 0.188 0.0887
Carbazole 0.598 0.276
n-Decane 0.948 0.437
Fluoranthene 0.0537 0.0268
n-Octadecane 0.589 0.302
1 mg/L (ppm).
2 Within the range 6 to 9.
(2) The following in-plant limitations apply to metal-bearing wastewater containing cyanide:
In-Plant Limitations
Regulatedparameter Maximum daily 1 Maximum monthly avg. 1
Cyanide 500 178
1 1 mg/L (ppm).
(d) Combined waste receipts from subparts A and C of this part. (1) As provided in § 437.45(a), any new source subject to this paragraph must achieve the following performance standards:
Performance Standards
Regulatedparameter Maximum daily 1 Maximum monthly avg. 1
Conventional Parameters
BOD5 163 53.0
O&G 205 50.2
pH (2) (2)
TSS 29.6 11.3
Metal Parameters
Antimony 0.111 0.0312
Arsenic 0.0993 0.0199
Cadmium 0.782 0.163
Chromium 0.167 0.0522
Cobalt 0.182 0.0703
Copper 0.659 0.216
Lead 1.32 0.283
Mercury 0.000641 0.000246
Nickel 0.794 0.309
Selenium 0.176 0.0698
Silver 0.0318 0.0122
Tin 0.0955 0.0367
Titanium 0.0159 0.00612
Vanadium 0.0628 0.0518
Zinc 0.657 0.252
Organic Parameters
Acetone 30.2 7.97
Acetophenone 0.114 0.0562
2-Butanone 4.81 1.85
o-Cresol 1.92 0.561
p-Cresol 0.698 0.205
Phenol 3.65 1.08
Pyridine 0.370 0.182
2,4,6-Trichlorophenol 0.155 0.106
1 mg/L (ppm).
2 Within the range 6 to 9.
(2) The following in-plant limitations apply to metal-bearing wastewater containing cyanide:
In-Plant Limitations
Regulatedparameter Maximum daily 1 Maximum monthly avg.1
Cyanide 500 178
1 mg/L (ppm).
(e) Combined waste receipts from subparts B and C of this part. As provided in § 437.45(a), any new source subject to this paragraph must achieve the following performance standards:
Performance Standards
Regulatedparameter Maximum daily 1 Maximum monthly avg. 1
Conventional Parameters
BOD5 163 53.0
O&G 127 38.0
pH (2) (2)
TSS 74.1 30.6
Metal Parameters
Arsenic 2.95 1.33
Cadmium 0.0172 0.0102
Chromium 0.746 0.323
Cobalt 56.4 18.8
Copper 0.500 0.242
Lead 0.350 0.160
Mercury 0.0172 0.00647
Tin 0.335 0.165
Zinc 0.497 0.420
Organic Parameters
Acetone 30.2 7.97
Acetophenone 0.114 0.0562
Bis(2-ethylhexyl) phthalate 0.215 0.101
2-Butanone 4.81 1.85
Butylbenzyl phthalate 0.188 0.0887
Carbazole 0.598 0.276
o-Cresol 1.92 0.561
p-Cresol 0.698 0.205
n-Decane 0.948 0.437
Fluoranthene 0.0537 0.0268
n-Octadecane 0.589 0.302
Phenol 3.65 1.08
Pyridine 0.370 0.182
2,4,6-Trichlorophenol 0.155 0.106
1 mg/L (ppm).
2 Within the range 6 to 9.

Code of Federal Regulations

[65 FR 81300, Dec. 22, 2000, as amended at 68 FR 71025, Dec. 22, 2003]
(a) Except as provided in § 437.40(b), any new source subject to this subpart which combines treated or untreated wastes from subparts A, B, or C of this part may be subject to Multiple Wastestream Subcategory effluent limitations representing the application of NSPS set forth in paragraphs (b), (c), (d), or (e) of this section if the discharger agrees to the following conditions in its NPDES permit:
(1) The discharger will meet the applicable Multiple Wastestream Subcategory limitations set forth in paragraphs (b), (c), (d) or (e) of this section;
(2) The discharger will notify its NPDES permit writer at the time of submitting its application for permit, of its desire to be subject to the Multiple Waste Subcategory by submitting to the NPDES permit writer an initial certification statement as described in § 437.41(a) ;
(3) The discharger will submit to its NPDES permitting authority a periodic certification statement as described in § 437.41(b) once a year; and
(4) The discharger will maintain at the office of the facility and make available for inspection the on-site compliance paperwork as described in § 437.41(c).
(b) Combined waste receipts from subparts A, B and C of this part. (1) As provided in § 437.45(a), any new source subject to this paragraph must achieve the following performance standards:
Performance Standards
Regulatedparameter Maximum daily 1 Maximum monthly avg. 1
Conventional Parameters
BOD 5 163 53.0
O&G 127 38.0
pH (2) (2)
TSS 29.6 11.3
Metal Parameters
Antimony 0.111 0.0312
Arsenic 0.0993 0.0199
Cadmium 0.0172 0.0102
Chromium 0.167 0.0522
Cobalt 0.182 0.0703
Copper 0.659 0.216
Lead 0.350 0.160
Mercury 0.000641 0.000246
Nickel 0.794 0.309
Selenium 0.176 0.0698
Silver 0.0318 0.0122
Tin 0.0955 0.0367
Titanium 0.0159 0.00612
Vanadium 0.0628 0.0518
Zinc 0.657 0.252
Organic Parameters
Acetone 30.2 7.97
Acetophenone 0.114 0.0562
Bis(2-ethylhexyl) phthalate 0.215 0.101
2-Butanone 4.81 1.85
Butylbenzyl phthalate 0.188 0.0887
Carbazole 0.598 0.276
o-Cresol 1.92 0.561
p-Cresol 0.698 0.205
n-Decane 0.948 0.437
Fluoranthene 0.0537 0.0268
n-Octadecane 0.589 0.302
Phenol 3.65 1.08
Pyridine 0.370 0.182
2,4,6-Trichlorophenol 0.155 0.106
1 mg/L (ppm).
2 Within the range 6 to 9.
(2) The following in-plant limitations apply to metal-bearing wastewater containing cyanide:
In-Plant Limitations
Regulatedparameter Maximum daily 1 Maximum monthly avg. 1
Cyanide 500 178
1 mg/L (ppm).
(c) Combined waste receipts from subparts A and B of this part. (1) As provided in § 437.45(a), any new source subject to this paragraph must achieve the following standards:
Performance Standards
Regulatedparameter Maximum daily 1 Maximum monthly avg. 1
Conventional Parameters
O&G 127 38.0
pH (2) (2)
TSS 29.6 11.3
Metal Parameters
Antimony 0.111 0.0312
Arsenic 0.0993 0.0199
Cadmium 0.0172 0.0102
Chromium 0.167 0.0522
Cobalt 0.182 0.0703
Copper 0.659 0.216
Lead 0.350 0.160
Mercury 0.000641 0.000246
Nickel 0.794 0.309
Selenium 0.176 0.0698
Silver 0.0318 0.0122
Tin 0.0955 0.0367
Titanium 0.0159 0.00612
Vanadium 0.0628 0.0518
Zinc 0.657 0.252
Organic Parameters
Bis(2-ethylhexyl) phthalate 0.215 0.101
Butylbenzyl phthalate 0.188 0.0887
Carbazole 0.598 0.276
n-Decane 0.948 0.437
Fluoranthene 0.0537 0.0268
n-Octadecane 0.589 0.302
1 mg/L (ppm).
2 Within the range 6 to 9.
(2) The following in-plant limitations apply to metal-bearing wastewater containing cyanide:
In-Plant Limitations
Regulatedparameter Maximum daily 1 Maximum monthly avg. 1
Cyanide 500 178
1 1 mg/L (ppm).
(d) Combined waste receipts from subparts A and C of this part. (1) As provided in § 437.45(a), any new source subject to this paragraph must achieve the following performance standards:
Performance Standards
Regulatedparameter Maximum daily 1 Maximum monthly avg. 1
Conventional Parameters
BOD5 163 53.0
O&G 205 50.2
pH (2) (2)
TSS 29.6 11.3
Metal Parameters
Antimony 0.111 0.0312
Arsenic 0.0993 0.0199
Cadmium 0.782 0.163
Chromium 0.167 0.0522
Cobalt 0.182 0.0703
Copper 0.659 0.216
Lead 1.32 0.283
Mercury 0.000641 0.000246
Nickel 0.794 0.309
Selenium 0.176 0.0698
Silver 0.0318 0.0122
Tin 0.0955 0.0367
Titanium 0.0159 0.00612
Vanadium 0.0628 0.0518
Zinc 0.657 0.252
Organic Parameters
Acetone 30.2 7.97
Acetophenone 0.114 0.0562
2-Butanone 4.81 1.85
o-Cresol 1.92 0.561
p-Cresol 0.698 0.205
Phenol 3.65 1.08
Pyridine 0.370 0.182
2,4,6-Trichlorophenol 0.155 0.106
1 mg/L (ppm).
2 Within the range 6 to 9.
(2) The following in-plant limitations apply to metal-bearing wastewater containing cyanide:
In-Plant Limitations
Regulatedparameter Maximum daily 1 Maximum monthly avg.1
Cyanide 500 178
1 mg/L (ppm).
(e) Combined waste receipts from subparts B and C of this part. As provided in § 437.45(a), any new source subject to this paragraph must achieve the following performance standards:
Performance Standards




Regulatedparameter Maximum daily 1 Maximum monthly avg. 1
Conventional Parameters
BOD5 163 53.0
O&G 127 38.0
pH (2) (2)
TSS 74.1 30.6
Metal Parameters
Arsenic 2.95 1.33
Cadmium 0.0172 0.0102
Chromium 0.746 0.323
Cobalt 56.4 18.8
Copper 0.500 0.242
Lead 0.350 0.160
Mercury 0.0172 0.00647
Tin 0.335 0.165
Zinc 0.497 0.420
Organic Parameters
Acetone 30.2 7.97
Acetophenone 0.114 0.0562
Bis(2-ethylhexyl) phthalate 0.215 0.101
2-Butanone 4.81 1.85
Butylbenzyl phthalate 0.188 0.0887
Carbazole 0.598 0.276
o-Cresol 1.92 0.561
p-Cresol 0.698 0.205
n-Decane 0.948 0.437