The provisions of this subpart are applicable to discharges and to the introduction of pollutants into treatment works which are publicly owned resulting from the production of sodium chlorate.
For the purpose of this subpart:
(a) Except as provided below, the general definitions, abbreviations, and methods of analysis set forth in part 401 of this chapter shall apply to this subpart.
(b) The term product shall mean sodium chlorate.
(c) The term chromium shall mean the total chromium present in the process wastewater stream exiting the wastewater treatment system.
(d) The term chlorine shall mean the total residual chlorine present in the process wastewater stream exiting the wastewater treatment system.
(e) The term antimony shall mean the total antimony present in the process wastewater stream exiting the wastewater treatment system.
(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 BN—Sodium Chlorate
| Pollutant or pollutant property
| BPT effluent limitations
|
|---|
| Maximum for any 1 day
| Average of daily values for 30 consecutive days
|
|---|
| Kg/kkg (or pounds per/1,000 lb) of product
|
| TSS | 0.12 | 0.068
|
| Antimony (T) | 0.0086 | 0.0043
|
| Chromium (T) | 0.0027 | 0.0014
|
| Chlorine (total residual) | 0.0041 | 0.0024
|
| pH | (
1) | (
1)
|
(b) [Reserved]
[49 FR 33428, Aug. 22, 1984; 49 FR 37594, Sept. 25, 1984]
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 available technology economically achievable (BAT).
Subpart BN—Sodium Chlorate
| Pollutant or pollutant property
| BAT effluent limitations
|
|---|
| Maximum for any 1 day
| Average of daily values for 30 consecutive days
|
|---|
| Kg/kkg (or pounds per/1,000 lb) of product
|
| Antimony (T) | 0.0043 | 0.0022
|
| Chromium (T) | 0.0017 | 0.00086
|
| Chlorine (total residual) | 0.0041 | 0.0024 |
Any new source subject to this subpart must achieve the following new source performance standards (NSPS):
Subpart BN—Sodium Chlorate
| Pollutant or pollutant property
| NSPS effluent limitations
|
|---|
| Maximum for any 1 day
| Average of daily values for 30 consecutive days
|
|---|
| Kg/kkg (or pounds per/1,000 lb) of product
|
| TSS | 0.076 | 0.046
|
| Antimony (T) | 0.0043 | 0.0022
|
| Chromium (T) | 0.0017 | 0.00086
|
| Chlorine (total residual) | 0.0041 | 0.0024
|
| pH | (
1) | (
1)
|
Except as provided in 40 CFR 403.7, any new source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources (PSNS):
Subpart BN—Sodium Chlorate
| Pollutant or pollutant property
| PSNS effluent limitations
|
|---|
| Maximum for any 1 day
| Average of daily values for 30 consecutive days
|
|---|
| Milligrams per liter (mg/l)
|
| Antimony (T) | 1.6 | 0.8
|
| Chromium (T) | 0.64 | 0.32 |
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 conventional pollutant control technology (BCT): The limitations are the same for TSS and pH as specified in § 415.662.
authority: Secs. 301, 304 (b), (c), (e), and (g), 306 (b) and (c), 307 (b) and (c), and 501 of the Clean Water Act (the Federal Water Pollution Control Act Amendments of 1972, as amended by the Clean Water Act of 1977) (the “Act”);
33 U.S.C. 1311,
1314,
c,
e,
and, 1316 (b) and
c, 1317 (b) and
c,
and; 86 Stat. 816, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217
source: 47 FR 28278, June 29, 1982, unless otherwise noted.
cite as: 40 CFR 415.665