Environmental Protection Agency § 415.166

Pt. 415 40 CFR Ch. I (7–1–20 Edition)

PART 415—INORGANIC CHEMI- Subpart D—Calcium Chloride Production CALS MANUFACTURING POINT Subcategory SOURCE CATEGORY 415.40 Applicability; description of the calcium chloride production subcategory. Subpart A—Aluminum Chloride Production 415.41 Specialized definitions. Subcategory 415.42 Effluent limitations guidelines representing the degree of effluent reduction Sec. attainable by the application of the best 415.01 Compliance dates for pretreatment practicable control technology currently standards for existing sources. available (BPT). 415.43 Effluent limitations guidelines rep- 415.10 Applicability; description of the alu- resenting the degree of effluent reduction minum chloride production subcategory. attainable by the application of the best 415.11 Specialized definitions. [Reserved] available technology economically 415.12–415.13 [Reserved] achievable (BAT). 415.14 Pretreatment standards for existing 415.44 [Reserved] sources (PSES). 415.45 New source performance standards 415.15 [Reserved] (NSPS). 415.46 Pretreatment standards for new Subpart B—Aluminum Sulfate Production sources (PSNS). Subcategory Subpart E—Calcium Oxide Production 415.20 Applicability; description of the alu- Subcategory minum sulfate production subcategory. 415.21 Specialized definitions. [Reserved] 415.50 Applicability; description of the cal- 415.22 Effluent limitations guidelines rep- cium oxide production subcategory. resenting the degree of effluent reduction 415.51 Specialized definitions. [Reserved] attainable by the application of the best 415.52 Effluent limitations guidelines rep- practicable control technology currently resenting the degree of effluent reduction available (BPT). attainable by the application of the best practicable control technology currently 415.23 Effluent limitations guidelines rep- available (BPT). resenting the degree of effluent reduction 415.53 Effluent limitations guidelines rep- attainable by the application of the best resenting the degree of effluent reduction available technology economically attainable by the application of the best achievable (BAT). available technology economically 415.24 Pretreatment standards for existing achievable (BAT). sources (PSES). 415.54 [Reserved] 415.25 New source performance standards 415.55 New source performance standards (NSPS). (NSPS). 415.26 Pretreatment standards for new 415.56 Pretreatment standards for new sources (PSNS). sources (PSNS).

Subpart C—Calcium Carbide Production Subpart F—Chlor-alkali Subcategory Subcategory (Chlorine and Sodium or Potassium Hydroxide Production) 415.30 Applicability; description of the calcium carbide production subcategory. 415.60 Applicability; description of the chlo- 415.31 Specialized definitions. [Reserved] rine and sodium or potassium hydroxide 415.32 Effluent limitations guidelines rep- production subcategory. resenting the degree of effluent reduction 415.61 Specialized definitions. attainable by the application of the best 415.62 Effluent limitations guidelines rep- practicable control technology currently resenting the degree of effluent reduction available (BPT). attainable by the application of the best practicable control technology currently 415.33 Effluent limitations guidelines rep- available (BPT). resenting the degree of effluent reduction 415.63 Effluent limitations guidelines rep- attainable by the application of the best resenting the degree of effluent reduction available technology economically attainable by the application of the best achievable (BAT). available technology economically 415.34 [Reserved] achievable (BAT). 415.35 New source performance standards 415.64 Pretreatment standards for existing (NSPS). sources (PSES). 415.36 Pretreatment standards for new 415.65 New source performance standards sources (PSNS). (NSPS).

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415.66 Pretreatment standards for new 415.115 New source performance standards sources (PSNS). (NSPS). 415.67 Effluent limitations guidelines rep- 415.116 Pretreatment standards for new resenting the degree of effluent reduction sources (PSNS). attainable by the application of the best conventional pollutant control tech- Subpart L—Potassium Dichromate nology (BCT). Production Subcategory Subpart G—Hydrochloric Acid Production 415.120 Applicability; description of the po- Subcategory [Reserved] tassium dichromate production subcategory. Subpart H—Hydrofluoric Acid Production 415.121 Specialized definitions. [Reserved] Subcategory 415.122 Effluent limitations guidelines representing the degree of effluent reduction 415.80 Applicability; description of the attainable by the application of the best hydrofluoric acid production sub- practicable control technology currently category. available (BPT). 415.81 Specialized definitions. [Reserved] 415.123 Effluent limitations guidelines rep- 415.82 Effluent limitations guidelines representing the degree of effluent reduction resenting the degree of effluent reduction attainable by the application of the best attainable by the application of the best available technology economically practicable control technology currently achievable (BAT). available (BPT). 415.124 Pretreatment standards for existing 415.83 Effluent limitations guidelines rep- sources (PSES). resenting the degree of effluent reduction 415.125 New source performance standards attainable by the application of the best (NSPS). available technology economically 415.126 Pretreatment standards for new achievable (BAT). sources (PSNS). 415.84 [Reserved] 415.85 New source performance standards Subpart M—Potassium Sulfate Production (NSPS). 415.86 Pretreatment standards for new Subcategory sources (PSNS). 415.130 Applicability; description of the po- 415.87 [Reserved] tassium sulfate production subcategory. Subpart I—Hydrogen Peroxide Production 415.131 Specialized definitions. [Reserved] 415.132 Effluent limitations guidelines rep- Subcategory resenting the degree of effluent reduction 415.90 Applicability; description of the hy- attainable by the application of the best drogen peroxide production subcategory. practicable control technology currently 415.91 Specialized definitions. available (BPT). 415.92 Effluent limitations guidelines rep- 415.133 Effluent limitations guidelines representing the degree of effluent reduction resenting the degree of effluent reduction attainable by the application of the best attainable by the application of the best practicable control technology currently available technology economically available (BPT). achievable (BAT). 415.134 [Reserved] Subpart J—Nitric Acid Production 415.135 New source performance standards Subcategory [Reserved] (NSPS). 415.136 Pretreatment standards for new Subpart K—Potassium Metal Production sources (PSNS). Subcategory Subpart N—Sodium Bicarbonate 415.110 Applicability; description of the po- Production Subcategory tassium metal production subcategory. 415.111 Specialized definitions. [Reserved] 415.140 Applicability; description of the so- 415.112 Effluent limitations guidelines rep- dium bicarbonate production sub- resenting the degree of effluent reduction category. attainable by the application of the best 415.141 Specialized definitions. [Reserved] practicable control technology currently 415.142 Effluent limitations guidelines rep- available (BPT). resenting the degree of effluent reduction 415.113 Effluent limitations guidelines rep- attainable by the application of the best resenting the degree of effluent reduction practicable control technology currently attainable by the application of the best available (BPT). available technology economically 415.143 Effluent limitations guidelines rep- achievable (BAT). resenting the degree of effluent reduction 415.114 [Reserved] attainable by the application of the best

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available technology economically Subpart T—Sodium Sulfite Production achievable (BAT). Subcategory 415.144 [Reserved] 415.145 New source performance standards 415.200 Applicability; description of the so- (NSPS). dium sulfite production subcategory. 415.146 Pretreatment standards for new 415.201 Specialized definitions. sources (PSNS). 415.202 Effluent limitations guidelines representing the degree of effluent reduction Subpart O—Sodium Carbonate Production attainable by the application of the best Subcategory [Reserved] practicable control technology currently available (BPT). Subpart P—Sodium Chloride Production 415.203 Effluent limitations guidelines rep- Subcategory resenting the degree of effluent reduction attainable by the application of the best 415.160 Applicability; description of the so- available technology economically dium chloride production subcategory. achievable (BAT). 415.161 Specialized definitions. 415.204 [Reserved] 415.162 Effluent limitations guidelines rep- 415.205 New source performance standards resenting the degree of effluent reduction (NSPS). attainable by the application of the best 415.206 Pretreatment standards for new practicable control technology currently sources (PSNS). available (BPT). 415.207 Effluent limitations guidelines rep- 415.163 Effluent limitations guidelines representing the degree of effluent reduction resenting the degree of effluent reduction attainable by the application of the best attainable by the application of the best conventional pollutant control tech- available technology economically nology (BCT). achievable (BAT). 415.164 [Reserved] Subpart U—Sulfuric Acid Production 415.165 New source performance standards Subcategory [Reserved] (NSPS). 415.166 Pretreatment standards for new Subpart V—Titanium Dioxide Production sources (PSNS). Subcategory Subpart Q—Sodium Dichromate and 415.220 Applicability; description of the ti- Sodium Sulfate Production Subcategory tanium dioxide production subcategory. 415.221 Specialized definitions. 415.170 Applicability; description of the so- 415.222 Effluent limitations guidelines rep- dium dichromate and sodium sulfate pro- resenting the degree of effluent reduction duction subcategory. attainable by the application of the best 415.171 Specialized definitions. practicable control technology currently 415.172 Effluent limitations guidelines rep- available (BPT). resenting the degree of effluent reduction 415.223 Effluent limitations guidelines rep- attainable by the application of the best resenting the degree of effluent reduction practicable control technology currently attainable by the application of the best available (BPT). available technology economically 415.173 Effluent limitations guidelines rep- achievable (BAT). resenting the degree of effluent reduction 415.224 [Reserved] attainable by the application of the best 415.225 New source performance standards available technology economically (NSPS). achievable (BAT). 415.226 Pretreatment standards for new 415.174 [Reserved] sources (PSNS). 415.175 New source performance standards 415.227 Effluent limitations guidelines rep- (NSPS). resenting the degree of effluent reduction 415.176 Pretreatment standards for new attainable by the application of the best sources (PSNS). conventional pollutant control tech- 415.177 Effluent limitations guidelines rep- nology (BCT). resenting the degree of effluent reduction attainable by the application of the best Subpart W—Aluminum Fluoride Production conventional pollutant control tech- Subcategory nology (BCT). 415.230 Applicability; description of the alu- Subpart R—Sodium Metal Production minum fluoride production subcategory. Subcategory [Reserved] 415.231 Specialized definitions. 415.232 Effluent limitations guidelines rep- Subpart S—Sodium Silicate Production resenting the degree of effluent reduction Subcategory [Reserved] attainable by the application of the best 246

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practicable control technology currently Subpart AC—Bromine Production available (BPT). Subcategory 415.233 Effluent limitations guidelines representing the degree of effluent reduction 415.290 Applicability; description of the bro- attainable by the application of the best mine production subcategory. available technology economically 415.291 Specialized definitions. [Reserved] achievable (BAT). 415.292 Effluent limitations guidelines representing the degree of effluent reduction 415.234 [Reserved] attainable by the application of the best 415.235 New source performance standards practicable control technology currently (NSPS). available (BPT). 415.236 [Reserved] 415.293–415.295 [Reserved] 415.237 Effluent limitations guidelines rep- 415.296 Pretreatment standards for new resenting the degree of effluent reduction sources (PSNS). attainable by the application of the best conventional pollutant control tech- Subpart AD—Calcium Carbonate nology (BCT). Production Subcategory

Subpart X—Ammonium Chloride 415.300 Applicability; description of the cal- Production Subcategory cium carbonate production subcategory. 415.301 Specialized definitions. 415.240 Applicability; description of the am- 415.302 Effluent limitations guidelines rep- monium chloride production sub- resenting the degree of effluent reduction category. attainable by the application of the best practicable control technology currently 415.241 Specialized definitions. available (BPT). 415.242 Effluent limitations guidelines representing the degree of effluent reduction Subpart AE—Calcium Hydroxide attainable by the application of the best Production Subcategory practicable control technology currently available (BPT). 415.310 Applicability; description of the calcium hydroxide production subcategory. Subpart Y—Ammonium Hydroxide 415.311 Specialized definitions. Production Subcategory [Reserved] 415.312 Effluent limitations guidelines representing the degree of effluent reduction Subpart Z—Barium Carbonate Production attainable by the application of the best practicable control technology currently Subcategory [Reserved] available (BPT). 415.313–415.315 [Reserved] Subpart AA—Borax Production 415.316 Pretreatment standards for new Subcategory sources (PSNS).

415.270 Applicability; description of the Subpart AF—Carbon Dioxide Production borax production subcategory. Subcategory [Reserved] 415.271 Specialized definitions. [Reserved] 415.272 Effluent limitations guidelines rep- Subpart AG—Carbon Monoxide and By- resenting the degree of effluent reduction Product Hydrogen Production Subcategory attainable by the application of the best practicable control technology currently 415.330 Applicability; description of the car- available (BPT). bon monoxide and by-product hydrogen 415.273–415.275 [Reserved] production subcategory. 415.276 Pretreatment standards for new 415.331 Specialized definitions. sources (PSNS). 415.332 Effluent limitations guidelines representing the degree of effluent reduction Subpart AB—Boric Acid Production attainable by the application of the best practicable control technology currently Subcategory available (BPT). 415.280 Applicability; description of the Subpart AH—Chrome Pigments Production boric acid production subcategory. Subcategory 415.281 Specialized definitions. 415.282 Effluent limitations guidelines rep- 415.340 Applicability; description of the resenting the degree of effluent reduction chrome pigments production sub- attainable by the application of the best category. practicable control technology currently 415.341 Specialized definitions. available (BPT). 415.342 Effluent limitations guidelines representing the degree of effluent reduction

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attainable by the application of the best Subpart AL—Ferric Chloride Production practicable control technology currently Subcategory available (BPT). 415.343 Effluent limitations guidelines rep- 415.380 Applicability; description of the fer- resenting the degree of effluent reduction ric chloride production subcategory. attainable by the application of the best 415.381 Specialized definitions. available technology economically 415.382 Effluent limitations guidelines rep- achievable (BAT). resenting the degree of effluent reduction 415.344 Pretreatment standards for existing attainable by the application of the best sources (PSES). practicable control technology currently 415.345 New source performance standards available (BPT). (NSPS). 415.383 [Reserved] 415.346 Pretreatment standards for new 415.384 Pretreatment standards for existing sources (PSNS). sources (PSES). 415.385 [Reserved] 415.347 Effluent limitations guidelines rep- 415.386 Pretreatment standards for new resenting the degree of effluent reduction sources (PSNS). attainable by the application of the best conventional pollutant control tech- Subpart AM—Ferrous Sulfate Production nology (BCT). Subcategory [Reserved] Subpart AI—Chromic Acid Production Subpart AN—Fluorine Production Subcategory Subcategory 415.350 Applicability; description of the 415.400 Applicability; description of the flu- chromic acid production subcategory. orine production subcategory. 415.351 Specialized definitions. [Reserved] 415.401 Specialized definitions. 415.352 Effluent limitations guidelines rep- 415.402 Effluent limitations guidelines representing the degree of effluent reduction resenting the degree of effluent reduction attainable by the application of the best attainable by the application of the best practicable control technology currently practicable control technology currently available (BPT). available (BPT). 415.353–415.355 [Reserved] 415.403–415.405 [Reserved] 415.356 Pretreatment standards for new 415.406 Pretreatment standards for new sources (PSNS). sources (PSNS).

Subpart AJ—Copper Salts Production Subpart AO—Hydrogen Production Subcategory Subcategory

415.360 Applicability; description of the cop- 415.410 Applicability; description of the hy- per salts production subcategory. drogen production subcategory. 415.361 Specialized definitions. 415.411 Specialized definitions. 415.362 Effluent limitations guidelines rep- 415.412 Effluent limitations guidelines representing the degree of effluent reduction resenting the degree of effluent reduction attainable by the application of the best attainable by the application of the best practicable control technology currently practicable control technology currently available (BPT). available (BPT). 415.363 Effluent limitations guidelines representing the degree of effluent reduction Subpart AP—Hydrogen Cyanide attainable by the application of the best Production Subcategory available technology economically 415.420 Applicability; description of the hy- achievable (BAT). drogen cyanide production subcategory. 415.364 Pretreatment standards for existing 415.421 Specialized definitions. sources (PSES). 415.422 Effluent limitations guidelines rep- 415.365 New source performance standards resenting the degree of effluent reduction (NSPS). attainable by the application of the best 415.366 Pretreatment standards for new practicable control technology currently sources (PSNS). available (BPT). 415.367 Effluent limitations guidelines rep- 415.423 Effluent limitations guidelines representing the degree of effluent reduction resenting the degree of effluent reduction attainable by the application of the best attainable by the application of the best conventional pollutant control tech- available technology economically nology (BCT). achievable (BAT). 415.424 [Reserved] Subpart AK—Cuprous Oxide Production 415.425 New source performance standards Subcategory [Reserved] (NSPS). 248

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415.426 Pretreatment standards for new 415.473 Effluent limitations guidelines rep- sources (PSNS). resenting the degree of effluent reduction 415.427 Effluent limitations guidelines rep- attainable by the application of the best resenting the degree of effluent reduction available technology economically attainable by the application of the best achievable (BAT). conventional pollutant control tech- 415.474 Pretreatment standards for existing nology (BCT). sources (PSES). 415.475 New source performance standards Subpart AQ—Iodine Production (NSPS). Subcategory 415.476 Pretreatment standards for new 415.430 Applicability; description of the io- sources (PSNS). dine production subcategory. 415.477 Effluent limitations guidelines rep- 415.431 Specialized definitions. resenting the degree of effluent reduction 415.432 Effluent limitations guidelines rep- attainable by the application of the best resenting the degree of effluent reduction conventional pollutant control tech- attainable by the application of the best nology (BCT). practicable control technology currently available (BPT). Subpart AV—Strong Nitric Acid Production 415.433–415.435 [Reserved] Subcategory [Reserved] 415.436 Pretreatment standards for new sources (PSNS). Subpart AW—Oxygen and Nitrogen Subpart AR—Lead Monoxide Production Production Subcategory Subcategory 415.490 Applicability; description of the oxy- 415.440 Applicability; description of the lead gen and nitrogen production sub- monoxide production subcategory. category. 415.441 Specialized definitions. 415.491 Specialized definitions. [Reserved] 415.442 Effluent limitations guidelines rep- 415.492 Effluent limitations guidelines representing the degree of effluent reduction resenting the degree of effluent reduction attainable by the application of the best attainable by the application of the best practicable control technology currently practicable control technology currently available (BPT). available (BPT). 415.443 [Reserved] 415.444 Pretreatment standards for existing Subpart AX—Potassium Chloride sources (PSES). Production Subcategory 415.445 [Reserved] 415.446 Pretreatment standards for new 415.500 Applicability; description of the po- sources (PSNS). tassium chloride production subcategory. 415.501 Specialized definitions. [Reserved] Subpart AS—Lithium Carbonate Production 415.502 Effluent limitations guidelines rep- Subcategory resenting the degree of effluent reduction 415.450 Applicability; description of the lith- attainable by the application of the best ium carbonate production subcategory. practicable control technology currently 415.451 Specialized definitions. available (BPT). 415.452 Effluent limitations guidelines rep- 415.503–415.505 [Reserved] resenting the degree of effluent reduction 415.506 Pretreatment standards for new attainable by the application of the best sources (PSNS). practicable control technology currently available (BPT). Subpart AY—Potassium Iodide Production Subcategory Subpart AT—Manganese Sulfate Production Subcategory [Reserved] 415.510 Applicability; description of the potassium iodide production subcategory. Subpart AU—Nickel Salts Production 415.511 Specialized definitions. Subcategory 415.512 Effluent limitations guidelines rep- 415.470 Applicability; description of the resenting the degree of effluent reduction nickel salts production subcategory. attainable by the application of the best 415.471 Specialized definitions. practicable control technology currently 415.472 Effluent limitations guidelines rep- available (BPT). resenting the degree of effluent reduction attainable by the application of the best Subpart AZ—Potassium Permanganate practicable control technology currently Production Subcategory [Reserved] available (BPT).

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Subpart BA—Silver Nitrate Production Subpart BF—Sodium Silicofluoride Subcategory Production Subcategory [Reserved] 415.530 Applicability; description of the sil- Subpart BG—Sodium Thiosulfate Production ver nitrate production subcategory. Subcategory [Reserved] 415.531 Specialized definitions. 415.532 Effluent limitations guidelines rep- Subpart BH—Stannic Oxide Production resenting the degree of effluent reduction Subcategory attainable by the application of the best practicable control technology currently 415.600 Applicability; description of the available (BPT). stannic oxide production subcategory. 415.533 [Reserved] 415.601 Specialized definitions. 415.534 Pretreatment standards for existing 415.602 Effluent limitations guidelines rep- sources (PSES). resenting the degree of effluent reduction attainable by the application of the best Subpart BB—Sodium Bisulfite Production practicable control technology currently Subcategory available (BPT). 415.603–415.605 [Reserved] 415.540 Applicability; description of the so- 415.606 Pretreatment standards for new dium bisulfite production subcategory. sources (PSNS). 415.541 Specialized definitions. 415.542 Effluent limitations guidelines rep- Subpart BI—Sulfur Dioxide Production resenting the degree of effluent reduction Subcategory [Reserved] attainable by the application of the best practicable control technology currently Subpart BJ—Zinc Oxide Production available (BPT). Subcategory [Reserved] 415.543 Effluent limitations guidelines representing the degree of effluent reduction Subpart BK—Zinc Sulfate Production attainable by the application of the best Subcategory available technology economically 415.630 Applicability; description of the zinc achievable (BAT). sulfate production subcategory. 415.544 [Reserved] 415.631 Specialized definitions. 415.545 New source performance standards 415.632 Effluent limitations guidelines rep- (NSPS). resenting the degree of effluent reduction 415.546 Pretreatment standards for new attainable by the application of the best sources (PSNS). practicable control technology currently 415.547 Effluent limitations guidelines rep- available (BPT). resenting the degree of effluent reduction 415.633–415.635 [Reserved] attainable by the application of the best 415.636 Pretreatment standards for new conventional pollutant control tech- sources (PSNS). nology (BCT). Subpart BL—Cadmium Pigments and Salts Subpart BC—Sodium Fluoride Production Production Subcategory Subcategory 415.640 Applicability; description of the cad- 415.550 Applicability; description of the so- mium pigments and salts production sub- dium fluoride production subcategory. category. 415.551 Specialized definitions. 415.641 Specialized definitions. 415.552 Effluent limitations guidelines rep- 415.642 Effluent limitations guidelines representing the degree of effluent reduction resenting the degree of effluent reduction attainable by the application of the best attainable by the application of the best practicable control technology currently practicable control technology currently available (BPT). available (BPT). 415.553 [Reserved] 415.643 Effluent limitations guidelines representing the degree of effluent reduction 415.554 Pretreatment standards for existing attainable by the application of the best sources (PSES). available technology economically 415.555 [Reserved] achievable (BAT). 415.556 Pretreatment standards for new 415.644 Pretreatment standards for existing sources (PSNS). sources (PSES). 415.645 New source performance standards Subpart BD—Sodium Hydrosulfide (NSPS). Production Subcategory [Reserved] 415.646 Pretreatment standards for new sources (PSNS). Subpart BE—Sodium Hydrosulfite 415.647 Effluent limitations guidelines rep- Production Subcategory [Reserved] resenting the degree of effluent reduction 250

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attainable by the application of the best 415.672 Effluent limitations guidelines rep- conventional pollutant control tech- resenting the degree of effluent reduction nology (BCT). attainable by the application of the best practicable control technology currently Subpart BM—Cobalt Salts Production available (BPT). Subcategory 415.673 Effluent limitations guidelines representing the degree of effluent reduction 415.650 Applicability; description of the co- attainable by the application of the best balt salts production subcategory. available technology economically 415.651 Specialized definitions. achievable (BAT). 415.652 Effluent limitations guidelines rep- 415.674 Pretreatment standards for existing resenting the degree of effluent reduction sources (PSES). attainable by the application of the best 415.675 New source performance standards practicable control technology currently (NSPS). available (BPT). 415.653 Effluent limitations guidelines rep- 415.676 Pretreatment standards for new resenting the degree of effluent reduction sources (PSNS). attainable by the application of the best 415.677 Effluent limitations guidelines rep- available technology economically resenting the degree of effluent reduction achievable (BAT). attainable by the application of the best 415.654 Pretreatment standards for existing conventional pollutant control tech- sources (PSES). nology (BCT). 415.655 New source performance standards AUTHORITY: Secs. 301, 304 (b), (c), (e), and (NSPS). (g), 306 (b) and (c), 307 (b) and (c), and 501 of 415.656 Pretreatment standards for new the Clean Water Act (the Federal Water Pol- sources (PSNS). lution Control Act Amendments of 1972, as 415.657 Effluent limitations guidelines rep- amended by the Clean Water Act of 1977) (the resenting the degree of effluent reduction ‘‘Act’’); 33 U.S.C. 1311, 1314 (b), (c), (e), and attainable by the application of the best (g), 1316 (b) and (c), 1317 (b) and (c), and 1361; conventional pollutant control tech- 86 Stat. 816, Pub. L. 92–500; 91 Stat. 1567, Pub. nology (BCT). L. 95–217.

Subpart BN—Sodium Chlorate Production SOURCE: 47 FR 28278, June 29, 1982, unless Subcategory otherwise noted. 415.660 Applicability; description of the sodium chlorate production subcategory. Subpart A—Aluminum Chloride 415.661 Specialized definitions. Production Subcategory 415.662 Effluent limitations guidelines representing the degree of effluent reduction § 415.01 Compliance dates for attainable by the application of the best pretreatment standards for existing practicable control technology currently sources. available (BPT). 415.663 Effluent limitations guidelines rep- The compliance dates for the resenting the degree of effluent reduction pretreatment standards for existing attainable by the application of the best sources (PSES) established in this part available technology economically are as follows: achievable (BAT). (a) The compliance date for subparts 415.664 Pretreatment standards for existing A, B, L, AL, AR, BA, and BC is July 20, sources (PSES). [Reserved] 415.665 New source performance standards 1980. (NSPS). (b) The compliance date for subparts 415.666 Pretreatment standards for new AJ, AU, BL, BM, BN and BO, except for sources (PSNS). discharges from copper sulfate or nick- 415.667 Effluent limitations guidelines rep- el sulfate manufacturing operations, is resenting the degree of effluent reduction August 22, 1987. attainable by the application of the best (c) The compliance date for dis- conventional pollutant control technology (BCT). charges from copper sulfate and nickel sulfate manufacturing operations and Subpart BO—Zinc Chloride Production for all subparts in part 415 not listed in Subcategory paragraphs (a) and (b) of this section is June 29, 1985. 415.670 Applicability; description of the zinc chloride production subcategory. [49 FR 33420, Aug. 22, 1984; 49 FR 37594, Sept. 415.671 Specialized definitions. 25, 1984]

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§ 415.10 Applicability; description of tions representing the degree of efflu- the aluminum chloride production ent reduction attainable by the appli- subcategory. cation of the best practicable control The provisions of this subpart are ap- technology currently available (BPT): plicable to discharges and to the intro- (a) Subject to the provisions of para- duction of pollutants into treatment graphs (b), (c) and (d) of this section, works which are publicly owned result- there shall be no discharge of process ing from the production of aluminum wastewater pollutants into navigable chloride. waters. (b) A process wastewater impound- § 415.11 Specialized definitions. [Re- ment which is designed, constructed served] and operated so as to contain the pre- §§ 415.12–415.13 [Reserved] cipitation from the 10-year, 24-hour rainfall event as established by the Na- § 415.14 Pretreatment standards for tional Climatic Center, National Oce- existing sources (PSES). anic and Atmospheric Administration Except as provided in 40 CFR 403.7 for the area in which such impound- and 403.13, any existing source subject ment is located may discharge that to this subpart which introduces pol- volume of process wastewater which is lutants into a publicly owned treat- equivalent to the volume of precipita- ment works must comply with 40 CFR tion that falls within the impoundment part 403 and achieve the following in excess of that attributable to the 10- pretreatment standards for existing year, 24-hour rainfall event, when such sources (PSES): event occurs. (c) During any calendar month there SUBPART A—ALUMINUM CHLORIDE may be discharged from a process wastewater impoundment either a vol- Pollutant or pollutant PSES limitations ume of process wastewater equal to the property difference between the precipitation pH ...... Within the range 5.0 to 10.0. for that month that falls within the impoundment and the evaporation for that month, or if greater, a volume of § 415.15 [Reserved] process wastewater equal to the difference between the mean precipitation Subpart B—Aluminum Sulfate for that month that falls within the Production Subcategory impoundment and the mean evaporation for that month as established by § 415.20 Applicability; description of the aluminum sulfate production the National Climatic Center, National subcategory. Oceanic and Atmospheric Administra- tion for the area in which such im- The provisions of this subpart are ap- poundment is located (or as otherwise plicable to discharges and to the intro- determined if no monthly data have duction of pollutants into treatment been established by the National Cli- works which are publicly owned result- matic Center). ing from the production of aluminum (d) Any process wastewater dis- sulfate. charged pursuant to paragraph (c) of § 415.21 Specialized definitions. [Re- this section shall comply with each of served] the following requirements:

§ 415.22 Effluent limitations guidelines SUBPART B—ALUMINUM SULFATE representing the degree of effluent reduction attainable by the applica- BPT limitations tion of the best practicable control Average of technology currently available Pollutant or pollutant property Maximum daily values (BPT). for any 1 for 30 con- day secutive Except as provided in 40 CFR 125.30 days through 125.32, any existing point Milligrams per liter (mg/l) source subject to this subpart must achieve the following effluent limita- TSS ...... 50 25

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SUBPART B—ALUMINUM SULFATE—Continued SUBPART B—ALUMINUM SULFATE

BPT limitations PSES limitations Average of Average of Pollutant or pollutant property Maximum daily values Pollutant or pollutant property Maximum for daily values for any 1 for 30 con- any 1 day for 30 con- day secutive secutive days days Milligrams per liter (mg/l) pH ...... (1) (1)

1 Within the range 6.0 to 9.0. Zinc ...... 5 .0 2 .5

§ 415.23 Effluent limitations guidelines § 415.25 New source performance representing the degree of effluent standards (NSPS). reduction attainable by the application of the best available tech- Any new source subject to this sub- nology economically achievable part must achieve the following new (BAT). source performance standards (NSPS): (a) Subject to the provisions of para- Except as provided in 40 CFR 125.30 graph (b) of this section there shall be through 125.32, any existing point no discharge of process wastewater pol- source subject to this subpart must lutants into navigable waters. achieve the following effluent limita- (b) A process wastewater impound- tions representing the degree of efflu- ment which is designed, constructed, ent reduction attainable by the appli- and operated so as to contain the pre- cation of the best available technology cipitation from the 25-year, 24-hour economically achievable (BAT): rainfall event as established by the Na- (a) Subject to the provisions of para- tional Climatic Center, National Oce- graph (b) of this section there shall be anic and Atmospheric Administration no discharge of process wastewater pol- for the area in which such impound- lutants into navigable waters. ment is located may discharge that (b) A process wastewater impound- volume of process wastewater which is ment which is designed, constructed, equivalent to the volume of precipita- and operated so as to contain the pre- tion that falls within the impoundment cipitation from the 25-year, 24-hour in excess of that attributable to the 25- rainfall event as established by the Na- year, 24-hour rainfall event, when such tional Climatic Center, National Oce- event occurs. anic and Atmospheric Administration for the area in which such impound- § 415.26 Pretreatment standards for ment is located may discharge that new sources (PSNS). volume of process wastewater which is Except as provided in § 403.7, any new equivalent to the volume of precipita- source subject to this subpart which in- tion that falls within the impoundment troduces pollutants into a publicly in excess of that attributable to the 25- owned treatment works must comply year, 24-hour rainfall event, when such with 40 CFR part 403 and achieve the event occurs. following pretreatment standards for new sources (PSNS): The limitations § 415.24 Pretreatment standards for are the same as the new source per- existing sources (PSES). formance standards specified in § 415.25. Except as provided in 40 CFR 403.7 and 403.13, any existing source subject Subpart C—Calcium Carbide to this subpart which introduces pol- Production Subcategory lutants into a publicly owned treatment works must comply with 40 CFR § 415.30 Applicability; description of part 403 and achieve the following the calcium carbide production subcategory. pretreatment standards for existing sources (PSES): The provisions of this subpart are ap- plicable to discharges resulting from the production of calcium carbide in uncovered furnaces.

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§ 415.31 Specialized definitions. [Re- Subpart D—Calcium Chloride served] Production Subcategory

§ 415.32 Effluent limitations guidelines § 415.40 Applicability; description of representing the degree of effluent the calcium chloride production reduction attainable by the applica- subcategory. tion of the best practicable control technology currently available The provisions of this subpart are ap- (BPT). plicable to discharges resulting from Except as provided in 40 CFR 125.30 the production of calcium chloride by through 125.32, any existing point the brine extraction process. source subject to this subpart must achieve the following effluent limita- § 415.41 Specialized definitions. tions representing the degree of efflu- For the purpose of this subpart: ent reduction attainable by the appli- (a) Except as provided below, the gen- cation of the best practicable control eral definitions, abbreviations and technology currently available (BPT): methods of analysis set forth in 40 CFR There shall be no discharge of process part 401 shall apply to this subpart. wastewater pollutants to navigable (b) The term product shall mean cal- waters. cium chloride.

§ 415.33 Effluent limitations guidelines § 415.42 Effluent limitations guidelines representing the degree of effluent representing the degree of effluent reduction attainable by the application of the best available technolgy reduction attainable by the applica- economically achievable (BAT). tion of the best practicable control technology currently available Except as provided in 40 CFR 125.30 (BPT). through 125.32, any existing point Except as provided in 40 CFR 125.30 source subject to this subpart must through 125.32, any existing point achieve the following effluent limitations representing the degree of efflu- source subject to this subpart must ent reduction attainable by the appli- achieve the following effluent limita- cation of the best available technology tions representing the degree of efflu- economically achievable (BAT): There ent reduction attainable by the appli- shall be no discharge of process waste- cation of the best practicable control water pollutants to navigable waters. technology currently available (BPT):

§ 415.34 [Reserved] SUBPART D—CALCIUM CHLORIDE

§ 415.35 New source performance BPT limitations standards (NSPS). Average of Pollutant or pollutant property Maximum for daily values Any new source subject to this sub- any 1 day for 30 con- part must achieve the following new secutive days source performance standards (NSPS): Kg/kkg (or pounds per 1,000 There shall be no discharge of process lb) of product wastewater pollutants to navigable waters. TSS ...... 0 .016 0.0082 pH ...... (1) (1) § 415.36 Pretreatment standards for 1 Within the range 6.0 to 9.0. new sources (PSNS). § 415.43 Effluent limitations guidelines Except as provided in § 403.7, any new representing the degree of effluent source subject to this subpart which in- reduction attainable by the applica- troduces pollutants into a publicly tion of the best available tech- owned treatment works must comply nology economically achievable with 40 CFR part 403 and achieve the (BAT). following pretreatment standards for Except as provided in 40 CFR 125.30 new sources (PSNS): There shall be no through 125.32, any existing point discharge of process wastewater pollutants to navigable waters. source subject to this subpart must

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achieve the following effluent limita- there shall be no discharge of process tions representing the degree of efflu- wastewater pollutants into navigable ent reduction attainable by the appli- waters. cation of the best available technology (b) A process wastewater impound- economically achievable (BAT): There ment which is designed, constructed shall be no discharge of process waste- and operated so as to contain the pre- water pollutants to navigable waters. cipitation from the 10-year, 24-hour rainfall event as established by the Na- § 415.44 [Reserved] tional Climatic Center, National Oce- § 415.45 New source performance anic and Atmospheric Administration standards (NSPS). for the area in which such impound- Any new source subject to this sub- ment is located may discharge that part must achieve the following new volume of process wastewater which is source performance standards (NSPS): equivalent to the volume of precipita- There shall be no discharge of process tion that falls within the impoundment wastewater pollutants to navigable in excess of that attributable to the 10- waters. year, 24-hour rainfall event, when such event occurs. § 415.46 Pretreatment standards for (c) During any calendar month there new sources (PSNS). may be discharged from a process Except as provided in § 403.7, any new wastewater impoundment either a vol- source subject to this subpart which in- ume of process wastewater equal to the troduces pollutants into a publicly difference between the precipitation owned treatment works must comply for that month that falls within the with 40 CFR part 403 and achieve the impoundment and the evaporation for following pretreatment standards for that month, or, if greater, a volume of new sources (PSNS): There shall be no discharge of process wastewater pollut- process wastewater equal to the dif- ants to navigable waters. ference between the mean precipitation for that month that falls within the Subpart E—Calcium Oxide impoundment and the mean evaporation for that month as established by Production Subcategory the National Climatic Center, National § 415.50 Applicability; description of Oceanic and Atmospheric Administra- the calcium oxide production sub- tion for the area in which such im- category. poundment is located (or as otherwise The provisions of this subpart are ap- determined if no monthly data have plicable to discharges resulting from been established by the National Cli- the production of calcium oxide. matic Center). (d) Any process wastewater dis- § 415.51 Specialized definitions. [Re- charged pursuant to paragraph (c) of served] this section shall comply with each of § 415.52 Effluent limitations guidelines the following requirements: representing the degree of effluent reduction attainable by the applica- SUBPART E—CALCIUM OXIDE tion of the best practicable control technology currently available BPT limitations (BPT). Average of Pollutant or pollutant property Maximum daily values Except as provided in 40 CFR 125.30 for any 1 for 30 con- through 125.32, any existing point day secutive source subject to this subpart must days achieve the following effluent limita- Milligrams per liter (mg/l) tions representing the degree of effluent reduction attainable by the appli- TSS ...... 50 25 1 1 cation of the best practicable control pH ...... ( ) ( ) technology currently available (BPT): 1 Within the range 6.0 to 9.0. (a) Subject to the provisions of paragraphs (b), (c), and (d) of this section,

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§ 415.53 Effluent limitations guidelines § 415.56 Pretreatment standards for representing the degree of effluent new sources (PSNS). reduction attainable by the applica- Except as provided in § 403.7, any new tion of the best available technology economically achievable source subject to this subpart which in- (BAT). troduces pollutants into a publicly owned treatment works must comply Except as provided in 40 CFR 125.30 with 40 CFR part 403 and achieve the through 125.32, any existing point following pretreatment standards for source subject to this subpart must new sources (PSNS): The limitations achieve the following effluent limita- are the same as the new source per- tions representing the degree of efflu- formance standards specified in § 415.55. ent reduction attainable by the application of the best available technology economically achievable (BAT): Subpart F—Chlor-alkali Sub- (a) Subject to the provisions of para- category (Chlorine and So- graph (b) of this section there shall be dium or Potassium Hydroxide no discharge of process wastewater pol- Production) lutants into navigable waters. (b) A process wastewater impound- § 415.60 Applicability; description of ment which is designed, constructed, the chlorine and sodium or potas- and operated so as to contain the pre- sium hydroxide production sub- cipitation from the 25-year, 24-hour category. rainfall event as established by the Na- The provisions of this subpart are ap- tional Climatic Center, National Oce- plicable to discharges resulting from anic and Atmospheric Administration the production of chlorine and sodium for the area in which such impound- or potassium hydroxide by the dia- ment is located may discharge that phragm cell process and by the mer- volume of process wastewater which is cury cell process. equivalent to the volume of precipitation that falls within the impoundment § 415.61 Specialized definitions. in excess of that attributable to the 25- For the purpose of this subpart: year, 24-hour rainfall event, when such (a) Except as provided below, the gen- event occurs. eral definitions, abbreviations and methods of analysis set forth in part § 415.54 [Reserved] 401 of this chapter shall apply to this subpart. § 415.55 New source performance standards (NSPS). (b) The term product shall mean chlorine. Any new source subject to this sub- (c) The term mercury shall mean the part must achieve the following new total mercury present in the process source performance standards (NSPS): wastewater stream exiting the mercury (a) Subject to the provisions of para- treatment system. graph (b) of this section there shall be (d) The term lead shall mean total no discharge of process wastewater pol- lead. lutants into navigable waters. (b) A process wastewater impound- § 415.62 Effluent limitations guidelines ment which is designed, constructed, representing the degree of effluent and operated so as to contain the pre- reduction attainable by the applica- cipitation from the 25-year, 24-hour tion of the best practicable control rainfall event as established by the Na- technology currently available tional Climatic Center, National Oce- (BPT). anic and Atmospheric Administration (a) Except as provided in 40 CFR for the area in which such impound- 125.30 through 125.32, any existing point ment is located may discharge that source subject to this subpart and volume of process wastewater which is using the mercury cell process must equivalent to the volume of precipita- achieve the following effluent limita- tion that falls within the impoundment tions representing the degree of efflu- in excess of that attributable to the 25- ent reduction attainable by the appli- year, 24-hour rainfall event, when such cation of the best practicable control event occurs. technology currently available (BPT):

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SUBPART F—CHLOR-ALKALI MERCURY CELLS SUBPART F—CHLOR-ALKALI-MERCURY CELLS

BPT limitations BAT effluent limitations

Average of Pollutant or pollutant property Average of Pollutant or pollutant property Maximum for daily values Maximum for daily values any 1 day for 30 con- any 1 day for 30 con- secutive days secutive days

Kg/kkg (or pounds per 1,000 Kg/kkg (or pounds per 1,000 lb) of product lb) of product

TSS ...... 0 .64 0 .32 Mercury (T) ...... 0 .00023 0.00010 Total Residual Chlorine ...... 0 .0032 0.0019 Mercury (T) ...... 00028 .00014 pH ...... (1) (1) (b) Except as provided in 40 CFR 1 Within the range of 6.0 to 9.0. 125.30 through 125.32, any existing point (b) Except as provided in 40 CFR source subject to this subpart and 125.30 through 125.32, any existing point using the diaphragm cell process must source subject to this subpart and achieve the following effluent limitations guidelines representing the de- using the diaphragm cell process must gree of effluent reduction attainable by achieve the following effluent limita- the application of the best available tions representing the degree of efflu- technology economically achievable ent reduction attainable by the appli- (BAT): cation of the best practicable control technology currently available (BPT): SUBPART F—CHLOR-ALKALI-DIAPHRAGM CELLS

SUBPART F—CHLOR-ALKALI DIAPHRAGM CELLS BAT effluent limitations Average of BPT limitations Pollutant or pollutant property Maximum for daily values any 1 day for 30 con- Average of secutive days Pollutant or pollutant property Maximum for daily values any 1 day for 30 con- Kg/kkg (or pounds per 1,000 secutive days lb) of product

Kg/kkg (or pounds per/1,000 Copper (T) ...... 0 .012 0 .0049 lb) of product Lead (T) ...... 0 .0059 0.0024 Nickel (T) ...... 0.0097 0 .0037 TSS ...... 1 .1 0 .51 Total Residual Chlorine ..... 0 .013 0 .0079 Copper (T) ...... 0 .018 0 .0070 Lead (T) ...... 0 .026 0 .010 Nickel (T) ...... 0.014 0 .0056 § 415.64 Pretreatment standards for pH ...... (1) (1) existing sources (PSES).

1 Within the range 6.0 to 9.0. (a) [Reserved] (b) Except as provided in 40 CFR 403.7 § 415.63 Effluent limitations guidelines and 403.13, any existing source subject representing the degree of effluent to this subpart and using the dia- reduction attainable by the applica- phragm cell process, which introduces tion of the best available tech- pollutants into a publicly owned treat- nology economically achievable ment works, must comply with 40 CFR (BAT). part 403 and achieve the following (a) Except as provided in 40 CFR pretreatment standards for existing 125.30 through 125.32, any existing point sources (PSES): source subject to this subpart and SUBPART F—CHLOR-ALKALI-DIAPHRAGM CELLS using the mercury cell process must achieve the following effluent limita- PSES effluent limitations tions representing the degree of efflu- Pollutant or pollutant property Average of ent reduction attainable by the appli- Maximum for daily values any 1 day for 30 con- cation of the best available technology secutive days economically achievable (BAT): Milligrams per liter (mq/1)

Copper (T) ...... 2 .1 0 .80 Lead (T) ...... 2 .9 1 .1 Nickel (T) ...... 1.6 0.64

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In cases when POTWs find it necessary SUBPART F—CHLOR-ALKALI-MERCURY CELLS to impose mass limitations, the fol- PSNS effluent limita- lowing equivalent mass limitations are tions provided as an alternate: The limita- Average of tions for Copper (T), Lead(T) and Nick- Pollutant or pollutant property Maximum daily val- el (T) are the same as specified in for any 1 ues for 30 day consecu- § 415.62(b). tive days

§ 415.65 New source performance Milligrams per liter standards (NSPS). Mercury (T) ...... 0 .11 0 .048 (a) Any new source subject to this subpart and using the mercury cell In cases where POTWs find it necessary process must achieve the following new source performance standards (NSPS): to impose mass limitations, the following equivalent mass limitations are SUBPART F—CHLOR-ALKALI-MERCURY CELLS provided as an alternate: The limitations for mercury (T) are the same as NSPS limitations specified in § 415.65(a). Average of (b) Except as provided in 40 CFR Pollutant or pollutant property Maximum for daily values any 1 day for 30 con- 403.7, any new source subject to this secutive days subpart and using the diaphragm cell process, which introduces pollutants Kq/kkg (or pounds per 1,000 lb) of product into a publicly owned treatment works, must compy with 40 CFR part 403 and TSS ...... 0 .64 0 .32 achieve the following pretreatment Mercury (T) ...... 0 .00023 0.00010 Total Residual Chlorine ...... 0 .0032 0.0019 standards for new sources (PSNS): pH ...... (1) (1) SUBPART F—DIAPHRAGM CELLS 1 Within the range 6.0 to 9.0. (b) Any new source subject to this PSNS effluent limitations subpart and using the diaphragm cell Average of Pollutant or pollutant property Maximum for daily values process must achieve the following new any 1 day for 30 con- source performance standards (NSPS): secutive days

SUBPART F—CHLOR-ALKALI-DIAPHRAGM CELLS Milligrams per liter (mg/1) Lead(T) ...... 0 .53 0.21 NSPS limitations Average of In cases where POTWs find it necessary Pollutant or pollutant property Maximum for daily values any 1 day for 30 con- to impose mass limitations, the fol- secutive days lowing equivalent mass limitations are provided as an alternate: The limita- Kq/kkg (or pounds per 1,000 lb) of product tions for Lead(T) are the same as specified in § 415.65(b). TSS ...... 1 .1 0 .51 Lead (T) ...... 0 .0047 0.0019 [47 FR 28278, June 29, 1982, as amended at 47 Total Residual Chlorine ...... 0 .013 0 .0079 FR 55226, Dec. 8, 1982] pH ...... (1) (1) 1 Within the range 6.0 to 9.0. § 415.67 Effluent limitations guidelines representing the degree of effluent § 415.66 Pretreatment standards for reduction attainable by the applica- new sources (PSNS). tion of the best conventional pollutant control technology (BCT). (a) Except as provided in 40 CFR 403.7, any new source subject to this (a) Except as provided in 40 CFR subpart and using the mercury cell 125.30 through 125.32, any existing point process, which introduces pollutants source subject to this subpart and into a publicly owned treatment works, using the mercury cell process must must comply with 40 CFR part 403 and achieve the following Pretreatment Standards for New Sources (PSNS):

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achieve the following effluent limita- § 415.83 Effluent limitations guidelines tions representing the degree of efflu- representing the degree of effluent ent reduction attainable by the appli- reduction attainable by the applica- cation of the best conventional pollut- tion of the best available technology economically achievable ant control technology (BCT): The lim- (BAT). itations are the same for TSS and pH as specified in § 415.62(a). Except as provided in 40 CFR 125.30 through 125.32, any existing point (b) [Reserved] source subject to this subpart must achieve the following effluent limita- Subpart G—Hydrochloric Acid tions representing the degree of efflu- Production Subcategory [Re- ent reduction attainable by the appli- served] cation of the best available technology economically achievable (BAT):

Subpart H—Hydrofluoric Acid SUBPART H—HYDROFLUORIC ACID Production Subcategory BAT effluent limitations § 415.80 Applicability; description of Average of the hydrofluoric acid production Pollutant or pollutant property Maximum for daily values subcategory. any 1 day for 30 con- secutive days The provisions of this subpart are ap- Kg/kkg (or pounds per 1,000 plicable to discharges resulting from lb) of product the production of hydrofluoric acid. Fluoride (T) ...... 3.4 1.6 Nickel (T) ...... 0.020 0 .0060 § 415.81 Specialized definitions. [Re- Zinc (T) ...... 0 .072 0 .022 served]

§ 415.82 Effluent limitations guidelines § 415.84 [Reserved] representing the degree of effluent reduction attainable by the applica- § 415.85 New source performance tion of the best practicable control standards (NSPS). technology currently available Any new source subject to this sub- (BPT). part must achieve the following new Except as provided in 40 CFR 125.30 source performance standards (NSPS): through 125.32, any existing point SUBPART H—HYDROFLUORIC ACID source subject to this subpart must achieve the following effluent limita- NSPS effluent limitations tions representing the degree of efflu- Average of ent reduction attainable by the appli- Pollutant or pollutant property Maximum for daily values any 1 day for 30 con- cation of the best practicable control secutive days technology currently available (BPT): Kg/kkg (or pounds per 1,000 lb) of product SUBPART H—HYDROFLUORIC ACID TSS ...... 6 .0 3 .0 BPT effluent limitations Fluoride (T) ...... 3.4 1.6 Nickel (T) ...... 0.020 0 .0060 Pollutant or pollutant property Average of Zinc (T) ...... 0 .072 0 .022 Maximum for daily values 1 1 any 1 day for 30 con- pH ...... ( ) ( ) secutive days 1 Within the range 6.0 to 9.0. Kg/kkg (or pounds per 1,000 lb) of product § 415.86 Pretreatment standards for new sources (PSNS). TSS ...... 11 .0 5 .3 Except as provided in 40 CFR 403.7, Fluoride (T) ...... 6.1 2.9 any new source subject to this subpart Nickel (T) ...... k0.036 0 .011 Zinc (T) ...... 0 .12 0.036 which introduces pollutants into a pub- pH ...... (1) (1) licly owned treatment works must comply with 40 CFR part 403 and 1 Within the range 6.0 to 9.0. achieve the following Pretreatment Standards for New Sources (PSNS):

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SUBPART H—HYDROFLUORIC ACID (e) The term process wastewater pollutants means pollutants present in proc- PSNS effluent limitations ess wastewater. (f) The term contaminated nonprocess Average of Pollutant or pollutant property Maximum daily val- wastewater shall mean any water for any 1 ues for 30 which, during manufacturing or proc- day consecu- tive days essing, comes into incidental contact with any raw material, intermediate Milligrams per liter product, finished product, by-product Fluoride (T) ...... 100 50 or waste product by means of (1) rain- Nickel (T) ...... 0.66 0 .20 fall runoff; (2) accidental spills; (3) ac- Zinc (T) ...... 2 .2 0 .66 cidental leaks caused by the failure of process equipment, which are repaired In cases where POTWs find it necessary within the shortest reasonable time to impose mass limitations, the fol- not to exceed 24 hours after discovery; lowing equivalent mass limitations are and (4) discharges from safety showers provided as an alternate: The limita- and related personal safety equipment: tions for Fluoride (T), Nickel (T), and Provided, that all reasonable measures Zinc (T) are the same as specified in have been taken (i) to prevent, reduce § 415.85. and control such contact to the max- [47 FR 55226, Dec. 8, 1982] imum extent feasible; and (ii) to mitigate the effects of such contact once it § 415.87 [Reserved] has occurred. Subpart I—Hydrogen Peroxide § 415.92 Effluent limitations guidelines representing the degree of effluent Production Subcategory reduction attainable by the application of the best practicable control § 415.90 Applicability; description of technology currently available the hydrogen peroxide production (BPT). subcategory. (a) Except as provided in 40 CFR The provisions of this subpart are ap- 125.30 through 125.32, any existing point plicable to discharges resulting from source subject to this subpart and man- the production of hydrogen peroxide by ufacturing hydrogen peroxide by the the electrolytic process and by the oxi- oxidation of alkyl dation of alkyl hydroanthraquinones. hydroanthraquinones must achieve the § 415.91 Specialized definitions. following effluent limitations representing the degree of effluent reduc- For the purpose of this subpart: tion attainable by the application of (a) Except as provided below, the gen- the best practicable control technology eral definitions, abbreviations and currently available (BPT): methods of analysis set forth in 40 CFR part 401 shall apply to this subpart. SUBPART I—HYDROGEN PEROXIDE ORGANIC (b) The term product shall mean hy- PROCESS drogen peroxide as a one hundred per- cent hydrogen peroxide solution. BPT limitations (c) The term Cyanide A shall mean Average of those cyanides amenable to Pollutant or pollutant property Maximum for daily values any 1 day for 30 con- chlorination and is determined by the secutive days methods specified in 40 CFR 136.3. (d) The term process wastewater Kg/kkg (or pounds per 1,000 lb) of product means any water which, during manufacturing or processing, comes into di- TSS ...... 0 .80 0 .40 rect contact with or results from the TOC ...... 0 .44 0.22 pH ...... (1) (1) production or use of any raw material, intermediate product, finished product, 1 Within the range 6.0 to 9.0. by-product, or waste product. The term (b) Except as provided in 40 CFR ‘‘process wastewater’’ does not include 125.30 through 125.32, any existing point contaminated non-process wastewater, source subject to this subpart and man- as defined below. ufacturing hydrogen peroxide by the

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electrolytic process must achieve the § 415.113 Effluent limitations guide- following effluent limitations rep- lines representing the degree of ef- resenting the degree of effluent reduc- fluent reduction attainable by the tion attainable by the application of application of the best available the best practicable control technology technology economically achievable currently available (BPT): (BAT). Except as provided in 40 CFR 125.30 SUBPART I—HYDROGEN PEROXIDE through 125.32, any existing point ELECTROLYTE PROCESS source subject to this subpart must BPT limitations achieve the following effluent limitations representing the degree of efflu- Pollutant or pollutant property Average of Maximum for daily values ent reduction attainable by the appli- any 1 day for 30 con- secutive days cation of the best available technology economically achievable (BAT): There Kg/kkg (or pounds per 1,000 shall be no discharge of process waste- lb) of product water pollutants to navigable waters. TSS ...... 0 .0050 0 .0025 Cyanide A ...... 0 .00040 0.00020 § 415.114 [Reserved] pH ...... (1) (1) 1 Within the range 6.0 to 9.0. § 415.115 New source performance standards (NSPS). Subpart J—Nitric Acid Production Any new source subject to this sub- Subcategory [Reserved] part must achieve the following new source performance standards (NSPS): Subpart K—Potassium Metal There shall be no discharge of process Production Subcategory wastewater pollutants to navigable waters. § 415.110 Applicability; description of the potassium metal production § 415.116 Pretreatment standards for subcategory. new sources (PSNS). The provisions of this subpart are ap- Except as provided in § 403.7, any new plicable to discharges resulting from source subject to this subpart which in- the production of potassium metal. troduces pollutants into a publicly owned treatment works must comply § 415.111 Specialized definitions. [Re- served] with 40 CFR part 403 and achieve the following pretreatment standards for § 415.112 Effluent limitations guide- new sources (PSNS): There shall be no lines representing the degree of ef- discharge of process wastewater pollut- fluent reduction attainable by the ants to navigable waters. application of the best practicable control technology currently available (BPT). Subpart L—Potassium Dichromate Except as provided in 40 CFR 125.30 Production Subcategory through 125.32, any existing point source subject to this subpart must § 415.120 Applicability; description of achieve the following effluent limita- the potassium dichromate production subcategory. tions representing the degree of effluent reduction attainable by the appli- The provisions of this subpart are ap- cation of the best practicable control plicable to discharges and to the intro- technology currently available (BPT): duction of pollutants resulting from There shall be no discharge of process the production of potassium dichro- wastewater pollutants to navigable mate into treatment works which are waters. publicly owned.

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§ 415.121 Specialized definitions. [Re- § 415.125 New source performance served] standards (NSPS). § 415.122 Effluent limitations guide- Any new source subject to this sub- lines representing the degree of ef- part must achieve the following new fluent reduction attainable by the source performance standards (NSPS): application of the best practicable There shall be no discharge of process control technology currently avail- wastewater pollutants to navigable able (BPT). waters. Except as provided in 40 CFR 125.30 through 125.32, any existing point § 415.126 Pretreatment standards for source subject to this subpart must new sources (PSNS). achieve the following effluent limita- Except as provided in § 403.7, any new tions representing the degree of efflu- source subject to this subpart which in- ent reduction attainable by the application of the best practicable control troduces pollutants into a publicly technology currently available (BPT): owned treatment works must comply There shall be no discharge of process with 40 CFR part 403 and achieve the wastewater pollutants to navigable following pretreatment standards for waters. new sources (PSNS): There shall be no discharge of process wastewater pollut- § 415.123 Effluent limitations guide- ants to navigable waters. lines representing the degree of effluent reduction attainable by the application of the best available Subpart M—Potassium Sulfate technology economically achievable Production Subcategory (BAT). Except as provided in 40 CFR 125.30 § 415.130 Applicability; description of through 125.32, any existing point the potassium sulfate production source subject to this subpart must subcategory. achieve the following effluent limita- The provisions of this subpart are ap- tions representing the degree of efflu- plicable to discharges resulting from ent reduction attainable by the appli- the production of potassium sulfate. cation of the best available technology economically achievable (BAT): There § 415.131 Specialized definitions. [Re- shall be no discharge of process waste- served] water pollutants to navigable waters. § 415.132 Effluent limitations guide- § 415.124 Pretreatment standards for lines representing the degree of ef- existing sources (PSES). fluent reduction attainable by the Except as provided in 40 CFR 403.7 application of the best practicable and 403.13, any existing source subject control technology currently avail- to this subpart which introduces pol- able (BPT). lutants into a publicly owned treat- Except as provided in 40 CFR 125.30 ment works must comply with 40 CFR through 125.32, any existing point part 403 and achieve the following source subject to this subpart must pretreatment standards for existing achieve the following effluent limita- sources (PSES): tions representing the degree of effluent reduction attainable by the appli- SUBPART L—POTASSIUM DICHROMATE cation of the best practicable control PSES limitations technology currently available (BPT): (a) Subject to the provisions of para- Pollutant or pollutant property Average of Maximum for daily values graphs (b), (c), and (d) of this section, any 1 day for 30 con- secutive days there shall be no discharge of process wastewater pollutants into navigable Milligrams per liter (mg/l) waters. Hexavalent chromium ...... 0 .25 0 .090 Total chromium ...... 3.0 1.0

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(b) A process wastewater impound- § 415.133 Effluent limitations guide- ment which is designed, constructed lines representing the degree of ef- and operated so as to contain the pre- fluent reduction attainable by the cipitation from the 10-year, 24-hour application of the best available technology economically achievable rainfall event as established by the Na- (BAT). tional Climatic Center, National Oce- Except as provided in 40 CFR 125.30 anic and Atmospheric Administration through 125.32, any existing point for the area in which such impound- source subject to this subpart must ment is located may discharge that achieve the following effluent limita- volume of process wastewater which is tions representing the degree of efflu- equivalent to the volume of precipita- ent reduction attainable by the appli- tion that falls within the impoundment cation of the best available technology in excess of that attributable to the 10- economically achievable (BAT): year, 24-hour rainfall event, when such (a) Subject to the provisions of para- event occurs. graph (b) of this section there shall be (c) During any calendar month there no discharge of process wastewater pol- may be discharged from a process lutants into navigable waters. wastewater impoundment either a vol- (b) A process wastewater impound- ume of process wastewater equal to the ment which is designed, constructed, difference between the precipitation and operated so as to contain the pre- for that month that falls within the cipitation from the 25-year, 24-hour impoundment and the evaporation for rainfall event as established by the Na- that month, or, if greater, a volume of tional Climatic Center, National Oce- anic and Atmospheric Administration process wastewater equal to the dif- for the area in which such impound- ference between the mean precipitation ment is located may discharge that for that month that falls within the volume of process wastewater which is impoundment and the mean evapo- equivalent to the volume of precipita- ration for that month as established by tion that falls within the impoundment the National Climatic Center, National in excess of that attributable to the 25- Oceanic and Atmospheric Administra- year, 24-hour rainfall event, when such tion for the area in which such im- event occurs. poundment is located (or as otherwise determined if no monthly data have § 415.134 [Reserved] been established by the National Cli- § 415.135 New source performance matic Center). standards (NSPS). (d) Any process wastewater dis- Any new source subject to this sub- charged pursuant to paragraph (c) of part must achieve the following new this section shall comply with each of source performance standards (NSPS): the following requirements: (a) Subject to the provisions of paragraph (b) of this section there shall be SUBPART M—POTASSIUM SULFATE no discharge of process wastewater pol- BPT limitations lutants into navigable waters. (b) A process wastewater impound- Average of Pollutant or pollutant property Maximum daily values ment which is designed, constructed, for any 1 for 30 con- and operated so as to contain the pre- day secutive days cipitation from the 25-year, 24-hour rainfall event as established by the Na- Milligrams per liter (mg/1) tional Climatic Center, National Oce- anic and Atmospheric Administration TSS ...... 50 25 ph ...... (1) (1) for the area in which such impoundment is located may discharge that 1 Within the range 6.0 to 9.0. volume of process wastewater which is equivalent to the volume of precipitation that falls within the impoundment in excess of that attributable to the 25- year, 24-hour rainfall event, when such event occurs.

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§ 415.136 Pretreatment standards for shall be no discharge of process waste- new sources (PSNS). water pollutants to navigable waters. Except as provided in § 403.7, any new § 415.144 [Reserved] source subject to this subpart which introduces pollutants into a publicly § 415.145 New source performance owned treatment works must comply standards (NSPS). with 40 CFR part 403 and achieve the following pretreatment standards for Any new source subject to this sub- new sources (PSNS): The limitations part must achieve the following new are the same as the new source per- source performance standards (NSPS): formance standards specified in There shall be no discharge of process § 415.135. wastewater pollutants to navigable waters.

Subpart N—Sodium Bicarbonate § 415.146 Pretreatment standards for Production Subcategory new sources (PSNS). § 415.140 Applicability; description of Except as provided in § 403.7, any new the sodium bicarbonate production source subject to this subpart which in- subcategory. troduces pollutants into a publicly The provisions of this subpart are ap- owned treatment works must comply plicable to discharges resulting from with 40 CFR part 403 and achieve the the production of sodium bicarbonate. following pretreatment standards for new sources (PSNS): There shall be no § 415.141 Specialized definitions. [Re- discharge of process wastewater pollut- served] ants to navigable waters.

§ 415.142 Effluent limitations guidelines representing the degree of ef- Subpart O—Sodium Carbonate fluent reduction attainable by the Production Subcategory [Re- application of the best practicable served] control technology currently available (BPT). Subpart P—Sodium Chloride Except as provided in 40 CFR 125.30 Production Subcategory through 125.32, any existing point source subject to this subpart must § 415.160 Applicability; description of achieve the following effluent limita- the sodium chloride production tions representing the degree of efflu- subcategory. ent reduction attainable by the application of the best practicable control The provisions of this subpart are ap- technology currently available (BPT): plicable to discharges resulting from There shall be no discharge of process the production of sodium chloride by wastewater pollutants to navigable the solution brine-mining process and waters. by the solar evaporation process.

§ 415.143 Effluent limitations guide- § 415.161 Specialized definitions. lines representing the degree of ef- For the purpose of this subpart: fluent reduction attainable by the (a) Except as provided below, the gen- application of the best available technology economically achievable eral definitions, abbreviations and (BAT). methods of analysis set forth in 40 CFR part 401 shall apply to this subpart. Except as provided in 40 CFR 125.30 through 125.32, any existing point (b) The term product shall mean so- source subject to this subpart must dium chloride. achieve the following effluent limita- (c) The term bitterns shall mean the tions representing the degree of efflu- saturated brine solution remaining ent reduction attainable by the appli- after precipitation of sodium chloride cation of the best available technology in the solar evaporation process. economically achievable (BAT): There

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§ 415.162 Effluent limitations guide- limitations representing the degree of lines representing the degree of ef- effluent reduction attainable by the ap- fluent reduction attainable by the plication of the best available tech- application of the best practicable nology economically achievable (BAT): control technology currently available (BPT). There shall be no discharge of process wastewater pollutants to navigable (a) Except as provided in 40 CFR waters, except that unused bitterns 125.30 through 125.32, any existing point may be returned to the body of water source subject to this subpart and from which the process brine solution using the solar evaporation process was originally withdrawn, provided no must achieve the following effluent additional pollutants are added to the limitations representing the degree of effluent reduction attainable by the ap- bitterns during the production of so- plication of the best practicable con- dium chloride. trol technology currently available (b) [Reserved] (BPT): There shall be no discharge of [47 FR 28278, June 29, 1982, as amended at 49 process wastewater pollutants to navi- FR 33420, Aug. 22, 1984] gable waters, except that unused bitterns may be returned to the body of § 415.164 [Reserved] water from which the process brine solution was originally withdrawn, pro- § 415.165 New source performance vided no additional pollutants are standards (NSPS). added to the bitterns during the pro- (a) Any new source subject to this duction of sodium chloride. subpart and using the solar evapo- (b) Except as provided in 40 CFR ration process must achieve the fol- 125.30 through 125.32, any existing point lowing new source performance stand- source subject to this subpart and ards (NSPS): There shall be no dis- using the solution brine mining process charge of process wastewater pollut- must achieve the following effluent ants to navigable waters, except that limitations representing the degree of effluent reduction attainable by the ap- unused bitterns may be returned to the plication of the best practicable con- body of water from which the process trol technology currently available brine solution was originally with- (BPT): drawn, provided no additional pollutants are added to the bitterns during SUBPART P—SODIUM CHLORIDE BRINE MINING the production of sodium chloride. PROCESS (b) Any new source subject to this subpart and using the solution brine- BPT limitations mining process must achieve the fol- Average of lowing new source performance stand- Pollutant or pollutant property Maximum for daily values any 1 day for 30 con- ards (NSPS): There shall be no dis- secutive days charge of process wastewater pollut- Kg/kkg (or pounds per 1,000 ants to navigable waters. lb.) of product § 415.166 Pretreatment standards for TSS ...... 0 .34 0 .17 pH ...... (1) (1) new sources (PSNS). 1 Within the range of 6.0 to 9.0. Except as provided in § 403.7, any new source subject to this subpart which in- § 415.163 Effluent limitations guide- troduces pollutants into a publicly lines representing the degree of ef- owned treatment works must comply fluent reduction attainable by the application of the best available with 40 CFR part 403 and achieve the technology economically achievable following pretreatment standards for (BAT). new sources (PSNS): The limitations (a) Except as provided in 40 CFR are the same as the new source per- 125.30 through 125.32, any existing point formance standards specified in source subject to this subpart and § 415.165. using the solar evaporation process must achieve the following effluent

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Subpart Q—Sodium Dichromate § 415.173 Effluent limitations guide- and Sodium Sulfate Produc- lines representing the degree of effluent reduction attainable by the tion Subcategory application of the best available technology economically achievable § 415.170 Applicability; description of (BAT). the sodium dichromate and sodium sulfate production subcategory. Except as provided in 40 CFR 125.30 through 125.32, any existing point The provisions of this subpart are ap- source subject to this subpart must plicable to discharges resulting from achieve the following effluent limita- the production of sodium dichromate tions representing the degree of efflu- and by-product sodium sulfate. ent reduction attainable by the application of the best available technology § 415.171 Specialized definitions. economically achievable (BAT): The For the purpose of this subpart: limitations for Chromium (T), (a) Except as provided below, the gen- Hexavalent Chromium, and Nickel (T) eral definitions, abbreviations and are the same as specified in § 415.172. methods of analysis set forth in 40 CFR § 415.174 [Reserved] part 401 shall apply to this subpart. (b) The term product shall mean so- § 415.175 New source performance dium dichromate. standards (NSPS). (c) The term Cr(T) shall mean total Any new source subject to this sub- chromium. part must achieve the following new (d) The term Cr(+ 6) shall mean source performance standards (NSPS): hexavalent chromium. The limitations are the same as specified in § 415.172. § 415.172 Effluent limitations guidelines representing the degree of ef- § 415.176 Pretreatment standards for fluent reduction attainable by the new sources (PSNS). application of the best practicable Except as provided in 40 CFR 403.7, control technology currently avail- any new source subject to this subpart able (BPT). which introduces pollutants into a pub- Except as provided in 40 CFR 125.30 licly owned treatment works must through 125.32, any existing point comply with 40 CFR part 403 and source subject to this subpart must achieve the following Pretreatment achieve the following effluent limita- Standards for New Sources (PSNS): tions representing the degree of effluent reduction attainable by the appli- SUBPART Q—SODIUM DICHROMATE cation of the best practicable control PSNS effluent limita- technology currently available (BPT): tions Average of SUBPART Q—SODIUM DICHROMATE Pollutant or pollutant property Maximum daily val- for any 1 ues for 30 day consecu- BPT limitations tive days Average of Pollutant or pollutant property Maximum for daily values Milligrams per liter any 1 day for 30 con- secutive days Chromium (T) ...... 1 .0 0 .50 Hexavalent Chromium ...... 0 .11 0.060 Kg/kkg (or pounds per 1,000 Nickel (T) ...... 0.80 0 .40 lb) of product

TSS ...... 0 .44 0 .22 In cases where POTWs find it necessary Hexavalent Chromium ...... 0 .00090 0 .00050 to impose mass limitations, the fol- Chromium (T) ...... 0 .0088 0 .0044 lowing equivalent mass limitations are Nickel (T) ...... 0.0068 0 .0034 provided as an alternate: The limita- pH ...... (1) (1) tions for Chromium (T), Hexavalent 1 Within the range 6.0 to 9.0. Chromium, and Nickel (T) are the same as specified in § 415.175. [47 FR 55226, Dec. 8, 1982]

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§ 415.177 Effluent limitations guide- SUBPART T—SODIUM SULFITE lines representing the degree of effluent reduction attainable by the BPT limitations application of the best conventional Average of pollutant control technology (BCT). Pollutant or pollutant property Maximum for daily values any 1 day for 30 con- Except as provided in 40 CFR 125.30 secutive days through 125.32, any existing point Kg/kkg (or pounds per 1,000 source subject to this subpart must lb) of product achieve the following effluent limita- TSS ...... 0 .032 0.016 tions representing the degree of efflu- COD ...... 3 .4 1 .7 ent reduction attainable by the appli- pH ...... (1) (1) cation of the best conventional pollut- 1 Within the range 6.0 to 9.0. ant control technology (BCT): The limitations are the same for TSS and pH § 415.203 Effluent limitations guide- as specified in § 415.172. lines representing the degree of effluent reduction attainable by the application of the best available Subpart R—Sodium Metal Produc- technology economically achievable tion Subcategory [Reserved] (BAT). Except as provided in 40 CFR 125.30 Subpart S—Sodium Silicate Pro- through 125.32, any existing point duction Subcategory [Re- source subject to this subpart must served] achieve the following effluent limitations representing the degree of efflu- Subpart T—Sodium Sulfite ent reduction attainable by the application of the best available technology Production Subcategory economically achievable (BAT): § 415.200 Applicability; description of SUBPART T—SODIUM SULFITE the sodium sulfite production subcategory. BAT effluent limitations The provisions of this subpart are ap- Average of plicable to discharges resulting from Pollutant or pollutant property Maximum for daily values any 1 day for 30 con- the production of sodium sulfite by re- secutive days acting sulfur dioxide with sodium carbonate. Kg/kkg (or pounds per/1,000 lb) of product

§ 415.201 Specialized definitions. Chromium (T) ...... 0 .0020 0 .00063 Zine (T) ...... 0.0051 0 .0015 For the purpose of this subpart: COD ...... 3 .4 1 .7 (a) Except as provided below, the gen- eral definitions, abbreviations and [49 FR 33420, Aug. 22, 1984] methods of analysis set forth in 40 CFR part 401 shall apply to this subpart. § 415.204 [Reserved] (b) The term product shall mean sodium sulfite. § 415.205 New source performance standards (NSPS). § 415.202 Effluent limitations guide- Any new source subject to this sub- lines representing the degree of ef- part must achieve the following new fluent reduction attainable by the application of the best practicable source performance standards (NSPS): control technology currently available (BPT). SUBPART T—SODIUM SULFITE Except as provided in 40 CFR 125.30 NSPS effluent limitations through 125.32, any existing point Average of source subject to this subpart must Pollutant or pollutant property Maximum for daily values any 1 day for 30 con- achieve the following effluent limita- secutive days tions representing the degree of effluent reduction attainable by the appli- Kg/kkg (or pounds per/1,000 lb) of product cation of the best practicable control technology currently available (BPT): TSS ...... 0 .032 0.016

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SUBPART T—SODIUM SULFITE—Continued tions representing the degree of effluent reduction attainable by the appli- NSPS effluent limitations cation of the best conventional pollut- Average of ant control technology (BCT): The lim- Pollutant or pollutant property Maximum for daily values any 1 day for 30 con- itations for TSS and pH are the same secutive days as specified in § 415.202. Chromium (T) ...... 0 .0020 0 .00063 [49 FR 33421, Aug. 22, 1984] Zinc (T) ...... 0 .0051 0 .0015 COD ...... 3 .4 1 .7 pH ...... (1) (1) Subpart U—Sulfuric Acid Produc- 1 Within the range 6.0 to 9.0. tion Subcategory [Reserved]

[49 FR 33421, Aug. 22, 1984] Subpart V—Titanium Dioxide § 415.206 Pretreatment standards for Production Subcategory new sources (PSNS). § 415.220 Applicability; description of Except as provided in 40 CFR 403.7, the titanium dioxide production any new source subject to this subpart subcategory. which introduces pollutants into a publicly owned treatment works must This subpart applies to discharges to comply with 40 CFR part 403 and waters of the United States and intro- achieve the following pretreatment duction of pollutants into publicly standards for new sources (PSNS). owned treatment works resulting from the production of titanium dioxide by SUBPART T—SODIUM SULFITE the sulfate process, the chloride process, and the simultaneous PSNS effluent limitations beneficiation-chlorination (chloride-il- Average of menite) process. Pollutant or pollutant property Maximum for daily values any 1 day for 30 con- secutive days § 415.221 Specialized definitions. For the purpose of this subpart: Milligrams per liter (mg/l) (a) Except as provided below, the gen- Chromium (total) ...... 1 .3 0 .42 eral definitions, abbreviations and Zinc (total) ...... 3 .4 1 .2 methods of analysis set forth in 40 CFR COD ...... 1,260 630 part 401 shall apply to this subpart. (b) The term product shall mean tita- In cases when POTWs find it necessary nium dioxide. to impose mass limitations, the following equivalent mass limitations are § 415.222 Effluent limitations guide- provided as an alternate: The limita- lines representing the degree of ef- tions on chromium (total), zinc (total), fluent reduction attainable by the and COD are the same as specified in application of the best practicable § 415.205. control technology currently available (BPT). [49 FR 33421, Aug. 22, 1984] (a) Except as provided in 40 CFR § 415.207 Effluent limitations guide- 125.30 through 125.32, any existing point lines representing the degree of ef- source subject to this subpart and pro- fluent reduction attainable by the ducing titanium dioxide by the sulfate application of the best conventional process must achieve the following ef- pollutant control technology (BCT). fluent limitations representing the de- Except as provided in 40 CFR 125.30 gree of effluent reduction attainable by through 125.32 any existing point the application of the best practicable source subject to this subpart must control technology currently available achieve the following effluent limita- (BPT):

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SUBPART V—TITANIUM DIOXIDE-SULFATE SUBPART V—TITANIUM DIOXIDE-CHLORIDE- PROCESS ILMENITE PROCESS

BPT effluent limitations BPT effluent limitations

Kg/kkg (or pounds per 1,000 Kg/kkg (or pounds per 1,000 lb) of product lb) of product

TSS ...... 140 38 TSS ...... 35 9.6 Chromium (T) ...... 0 .48 0 .21 Chromium (T) ...... 0 .12 0 .053 Nickel (T) ...... 0.29 0 .14 Nickel (T) ...... 0.072 0 .035 1 1 pH ...... (1) (1) pH ...... ( ) ( ) 1 1 Within the range 6.0 to 9.0. Within the range 6.0 to 9.0. (b) Except as provided for in 40 CFR [47 FR 28278, June 29, 1982, as amended at 47 125.30 through 125.32, any existing point FR 55227, Dec. 8, 1982] source subject to this subpart and producing titanium dioxide by the chlo- § 415.223 Effluent limitations guidelines representing the degree of ef- ride process must achieve the following fluent reduction attainable by the effluent limitations representing the application of the best available degree of effluent reduction attainable technology economically achievable by the application of the best prac- (BAT). ticable control technology currently (a) Except as provided in 40 CFR available (BPT): 125.30 through 125.32, any existing point source subject to this subpart and pro- SUBPART V—TITANIUM DIOXIDE-CHLORIDE ducing titanium dioxide by the sulfate PROCESS process must achieve the following effluent limitations representing the de- BPT effluent limitations gree of effluent reduction attainable by Average of the application of the best available Pollutant or pollutant property Maximum for daily values any 1 day for 30 con- technology economically achievable secutive days (BAT): The limitations are the same Kg/kkg (or pounds per 1,000 for Chromium(T) and Nickel(T) as lb) of product specified in § 415.222(a). (b) Except as provided in 40 CFR TSS ...... 23 6.4 125.30 through 125.32, any existing point Chromium (T) ...... 0 .057 0 .030 source subject to this subpart and pro- pH ...... (1) (1) ducing titanium dioxide by the chlo- 1 Within the range 6.0 to 9.0. ride process must achieve the following (c) Except as provided in 40 CFR effluent limitations guidelines rep- 125.30 through 125.32, any existing point resenting the degree of effluent reduc- source subject to this subpart and pro- tion attainable by the application of ducing titanium dioxide by the simul- the best available technology economi- taneous beneficiation-chlorination cally achievable (BAT): The limitations for Chromium(T) are the same as (chloride/ilmenite) process must specified in § 415.222(b). achieve the following effluent limita- (c) Except as provided in 40 CFR tions representing the degree of efflu- 125.30 through 125.32, any existing point ent reduction attainable by the appli- source subject to this subpart and pro- cation of the best practicable control ducing titanium dioxide by the simul- technology currently available (BPT): taneous beneficiation-chlorination (chloride-ilmenite) process must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT): The

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limitations for Chromium(T) and Nick- SUBPART V—TITANIUM DIOXIDE-CHLORIDE- el(T) are the same as specified in ILMENITE PROCESS § 415.222(c). NSPS effluent limitations § 415.224 [Reserved] Average of Pollutant or pollutant property Maximum for daily values any 1 day for 30 con- § 415.225 New source performance secutive days standards (NSPS). Kg/kkg (or pounds per 1,000 (a) Any new source subject to this lb) of product subpart producing titanium dioxide by the sulfate process must achieve the TSS ...... 8 .4 2 .4 following new source performance Iron (T) ...... 0 .32 0 .096 Chromium (T) ...... 0 .014 0 .0072 standards (NSPS): Nickel (T) ...... 0.020 0 .010 pH ...... (1) (1) SUBPART V—TITANIUM DIOXIDE-SULFATE 1 Within the range 6.0 to 9.0. PROCESS

NSPS effluent limitations § 415.226 Pretreatment standards for new sources (PSNS). Average of Pollutant or pollutant property Maximum for daily values (a) Except as provided in 40 CFR any 1 day for 30 con- secutive days 403.7, any new source subject to this subpart and producing titanium diox- Kg/kkg (or pounds per 1,000 ide by the sulfate process which intro- lb) of product duces pollutants into a publicly owned TSS ...... 110 30 treatment works must comply with 40 Iron (T) ...... 4 .1 1 .2 CFR part 403 and achieve the following Chromium (T) ...... 0 .27 0 .14 pretreatment standards for new Nickel (T) ...... 0.18 0 .095 pH ...... (1) (1) sources (PSNS):

1 Within the range 6.0 to 9.0. SUBPART V—TITANIUM DIOXIDE—SULFATE (b) Any new source subject to this PROCESS

subpart producing titanium dioxide by PSNS effluent limitations the chloride process must achieve the Average of following new source performance Pollutant or pollutant property Maximum for daily values standards (NSPS): any 1 day for 30 con- secutive days

SUBPART V—TITANIUM DIOXIDE-CHLORIDE Milligrams per liter (mg/1) PROCESS Iron (T) ...... 8 .5 2 .5 NSPS effluent limitations Chromium (T) ...... 0 .57 0 .30 Nickel (T) ...... 0.38 0 .20 Average of Pollutant or pollutant property Maximum for daily values any 1 day for 30 con- secutive days In cases where POTWs find it necessary to impose mass limitations, the fol- Kg/kkg (or pounds per 1,000 lowing equivalent mass limitations are lb) of product provided as an alternate: The limita- TSS ...... 14 4.0 tions for Iron(T), Chromium(T), and Iron (T) ...... 0 .52 0 .16 Nickel(T) are the same as specified in Chromium (T) ...... 0 .023 0 .012 § 415.225(a). ph ...... (1) (1) (b) Except as provided in 40 CFR 1 Within the range 6.0 to 9.0. 403.7, any new source subject to this (c) Any new source subject to this subpart and producing titanium diox- subpart producing titanium dioxide by ide by the chloride process which intro- the simultaneous beneficiation- duces pollutants into a publicly owned chlorination (chloride-ilmenite) proc- treatment works must comply with 40 ess must achieve the following new CFR part 403 and achieve the following source performance standards (NSPS): pretreatment standards for new sources (PSNS):

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SUBPART V—TITANIUM DIOXIDE-CHLORIDE ent reduction attainable by the appli- PROCESS cation of the best conventional pollutant control technology (BCT): The lim- PSNS effluent limitations itations are the same for TSS and pH Average of as specified in § 415.222. Pollutant or pollutant property Maximum for daily values any 1 day for 30 con- [47 FR 55227, Dec. 8, 1982] secutive days Milligrams per liter (mg/1) Subpart W—Aluminum Fluoride

Iron (T) ...... 5 .3 1 .6 Production Subcategory Chromium (T) ...... 0 .23 0 .12 § 415.230 Applicability; description of the aluminum fluoride production In cases where POTWs find it necessary subcategory. to impose mass limitations, the following equivalent mass limitations are This subpart applies to discharges to provided as guidance: The limitations waters of the United States and intro- for Iron(T) and Chromium(T) are the duction of pollutants into publicy same as specified in § 415.255(b). owned treatment works resulting from (c) Except as provided in § 403.7, any the production of aluminum fluoride. new source subject to this subpart and § 415.231 Specialized definitions. producing titanium dioxide by the simultaneous beneficiation-chlorination For the purpose of this subpart: (chloride-ilmenite) process which in- (a) Except as provided below, the gen- troduces pollutants into a publicly eral definitions, abbreviations and owned treatment works must comply methods of analysis set forth in part with 40 CFR part 403 and achieve the 401 of this chapter shall apply to this following pretreatment standards for subpart. new sources (PSNS): (b) The term product means aluminum fluoride produced by the dry SUBPART V—TITANIUM DIOXIDE-CHLORIDE- process in which partially dehydrated ILMENITE PROCESS alumina hydrate is reacted with hydrofluoric acid gas. PSNS effluent limitations Average of § 415.232 Effluent limitations guide- Pollutant or pollutant property Maximum for daily values lines representing the degree of ef- any 1 day for 30 con- secutive days fluent reduction attainable by the application of the best practicable Milligrams per liter (mg/l) control technology currently available (BPT). Iron (T) ...... 5 .3 1 .6 Chromium (T) ...... 0 .23 0 .12 Except as provided in 40 CFR 125.30 Nickel (T) ...... 0.33 0 .17 through 125.32, any existing point source subject to this subpart must In cases where POTWs find it necessary achieve the following effluent limita- to impose mass limitations, the fol- tions representing the degree of efflu- lowing equivalent mass limitations are ent reduction attainable by the appli- provided as an alternate: The limita- cation of the best practicable control tions for Iron (T), Chromium (T), and technology currently available (BPT): Nickel (T) are the same as specified in § 415.225(c). SUBPART W—ALUMINUM FLUORIDE

Pollutant or pollutant prop- § 415.227 Effluent limitations guide- erty lines representing the degree of effluent reduction attainable by the BPT effluent limitations Average of Maximum for daily values application of the best conventional any 1 day for 30 con- pollutant control technology (BCT). secutive days

Except as provided in 40 CFR 125.30 Kg/kkg (or pounds per 1,000 through 125.32, any existing point lb) of product source subject to this subpart must TSS ...... 2 .4 1 .2 achieve the following effluent limita- Fluoride (T) ...... 1.3 0.63 tions representing the degree of efflu- Chromium (T) ...... 0 .015 0 .0045

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SUBPART W—ALUMINUM FLUORIDE—Continued Subpart X—Ammonium Chloride

Pollutant or pollutant prop- Production Subcategory erty § 415.240 Applicability; description of BPT effluent limitations Average of Maximum for daily values the ammonium chloride production any 1 day for 30 con- subcategory. secutive days The provisions of this subpart are ap- Nicket (T) ...... 0 .0079 0 .0024 plicable to discharges resulting from pH ...... (1) (1) the production of ammonium chloride 1 Within the range 6.0 to 9.0. by the reaction of anhydrous ammonia with hydrogen chloride gas and by the [47 FR 28278, June 29, 1982, as amended at 47 FR 55227, Dec. 8, 1982] recovery process from Solvay process wastes. § 415.233 Effluent limitations guidelines representing the degree of ef- § 415.241 Specialized definitions. fluent reduction attainable by the (a) Except as provided below, the gen- application of the best available eral definitions, abbreviations and technology economically achievable (BAT). methods of analysis set forth in 40 CFR part 401 shall apply to this subpart. Except as provided in 40 CFR 125.30 (b) The term product shall mean am- through 125.32, any existing point monium chloride. source subject to this subpart must (c) The term process wastewater achieve the following effluent limita- means any water which, during manu- tions representing the degree of effluent reduction attainable by the appli- facturing or processing, comes into di- cation of the best available technology rect contact with or results from the economically achievable (BAT): The production or use of any raw material, limitations for Fluoride(T), Chro- intermediate product, finished product, mium(T), and Nickel(T) are the same by-product, or waste product. The term as specified in § 415.232. ‘‘process wastewater’’ does not include contaminated nonprocess wastewater, § 415.234 [Reserved] as defined below. (d) The term process wastewater pol- § 415.235 New source performance lutants means pollutants present in standards (NSPS). process wastewater. Any new source subject to this sub- (e) The term contaminated nonprocess part must achieve the following new wastewater shall mean any water source performance standards (NSPS): which, during manufacturing or proc- The limitations are the same as speci- essing, comes into incidental contact fied in § 415.232. with any raw material, intermediate product, finished product, by-product § 415.236 [Reserved] or waste product by means of (1) rainfall runoff; (2) accidental spills; (3) ac- § 415.237 Effluent limitations guidelines representing the degree of ef- cidental leaks caused by the failure of fluent reduction attainable by the process equipment, which are repaired application of the best conventional within the shortest reasonable time pollutant control technology (BCT). not to exceed 24 hours after discovery; Except as provided in 40 CFR 125.30 and (4) discharges from safety showers through 125.32, any existing point and related personal safety equipment: source subject to this subpart must Provided, that all reasonable measures achieve the following effluent limita- have been taken (i) to prevent, reduce tions representing the degree of efflu- and control such contact to the max- ent reduction attainable by the appli- imum extent feasible; and (ii) to miti- cation of the best conventional pollut- gate the effects of such contact once it ant control technology (BCT): The lim- has occurred. itations are the same for TSS and pH as specified in § 415.232.

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§ 415.242 Effluent limitations guide- the production of borax by the ore-min- lines representing the degree of ef- ing process and by the Trona process. fluent reduction attainable by the application of the best practicable § 415.271 Specialized definitions. [Re- control technology currently avail- served] able (BPT). (a) Except as provided in 40 CFR § 415.272 Effluent limitations guide- 125.30 through 125.32, any existing point lines representing the degree of ef- source subject to this subpart and re- fluent reduction attainable by the application of the best practicable acting anhydrous ammonia with hydro- control technology currently avail- gen chloride gas must achieve the fol- able (BPT). lowing effluent limitations representing the degree of effluent reduc- Except as provided in 40 CFR 125.30 tion attainable by the application of through 125.32, any existing point the best practicable control technology source subject to this subpart must currently available (BPT): There shall achieve the following effluent limita- be no discharge of process wastewater tions representing the degree of efflu- pollutants to navigable waters. ent reduction attainable by the appli- (b) Except as provided in 40 CFR cation of the best practicable control 125.30 through 125.32, any existing point technology currently available (BPT): source subject to this subpart and There shall be no discharge of process using the recovery process from Solvay wastewater pollutants to navigable process wastes must achieve the fol- waters, except that residual brine and lowing effluent limitations rep- depleted liquor may be returned to the resenting the degree of effluent reduc- body of water from which the process tion attainable by the application of brine solution was originally with- the best practicable control technology drawn. currently available (BPT): §§ 415.273–415.275 [Reserved] SUBPART X—AMMONIUM CHLORIDE SOLVAY PROCESS § 415.276 Pretreatment standards for new sources (PSNS). BPT limitations Except as provided in 40 CFR 403.7, Average of any new source subject to this subpart Pollutant or pollutant property Maximum daily values for any 1 for 30 con- which introduces pollutants into a pub- day secutive licly owned treatment works must days comply with 40 CFR part 403 and Kg/kkg (or pounds per achieve the following pretreatment 1,000 lb) of product standards for new sources (PSNS): The Ammonia (as N) ...... 8.8 4.4 limitations are the same as specified in pH ...... (1) (1) § 415.272.

1 Within the range 6.0 to 9.0. [49 FR 33421, Aug. 22, 1984]

Subpart Y—Ammonium Hydroxide Subpart AB—Boric Acid Production Subcategory [Re- Production Subcategory served] § 415.280 Applicability; description of Subpart Z—Barium Carbonate Pro- the boric acid production sub- duction Subcategory [Re- category. served] The provisions of this subpart are ap- plicable to discharges resulting from Subpart AA—Borax Production the production of boric acid from ore- Subcategory mined borax and from borax produced by the Trona process. § 415.270 Applicability; description of the borax production subcategory. § 415.281 Specialized definitions. The provisions of this subpart are ap- (a) Except as provided below, the gen- plicable to discharges resulting from eral definitions, abbreviations and

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methods of analysis set forth in 40 CFR the production of bromine by the brine- part 401 shall apply to this subpart. mining process and by the Trona proc- (b) The term product shall mean boric ess. acid. § 415.291 Specialized definitions. [Re- § 415.282 Effluent limitations guide- served] lines representing the degree of effluent reduction attainable by the § 415.292 Effluent limitations guide- application of the best practicable lines representing the degree of ef- control technology currently avail- fluent reduction attainable by the able (BPT). application of the best practicable (a) Except as provided in 40 CFR control technology currently avail- 125.30 through 125.32, any existing point able (BPT). source subject to this subpart and Except as provided in 40 CFR 125.30 using borax produced by the Trona through 125.32, any existing point process must achieve the following ef- source subject to this subpart must fluent limitations representing the de- achieve the following effluent limita- gree of effluent reduction attainable by tions representing the degree of efflu- the application of the best practicable ent reduction attainable by the appli- control technology currently available (BPT): There shall be no discharge of cation of the best practicable control process wastewater pollutants to navi- technology currently available (BPT): gable waters, except that residual brine There shall be no discharge of process and depleted liquor may be returned to wastewater pollutants to navigable the body of water from which the proc- waters, except that residual brine and ess brine solution was originally with- depleted liquor may be returned to the drawn. body of water from which the process (b) Except as provided in 40 CFR brine solution was originally with- 125.30 through 125.32, any existing point drawn. source subject to this subpart and using remined borax must achieve the §§ 415.293–415.295 [Reserved] following effluent limitations representing the degree of effluent reduc- § 415.296 Pretreatment standards for tion attainable by the application of new sources (PSNS). the best practicable control technology Except as provided in 40 CFR 403.7, currently available (BPT): any new source subject to this subpart which introduces pollutants into a pub- SUBPART AB—BORIC ACID MINED BORAX licly owned treatment works must PROCESS comply with 40 CFR part 403 and BPT limitations achieve the following pretreatment standards for new sources (PSNS): The Average of Pollutant or pollutant property Maximum for daily values limitations are the same as specified in any 1 day for 30 con- secutive days § 415.292.

Kg/kkg (or pounds per 1,000 [49 FR 33421, Aug. 22, 1984] lb) of product

Arsenic ...... 0 .0028 0 .0014 Subpart AD—Calcium Carbonate TSS ...... 0 .14 0 .07 Production Subcategory pH ...... (1) (1) 1 Within the range 6.0 to 9.0. § 415.300 Applicability; description of the calcium carbonate production Subpart AC—Bromine Production subcategory. Subcategory The provisions of this subpart are ap- plicable to discharges resulting from § 415.290 Applicability; description of the production of calcium carbonate by the bromine production sub- the milk of lime process and by the re- category. covery process from Solvay process The provisions of this subpart are ap- wastes. plicable to discharges resulting from

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§ 415.301 Specialized definitions. SUBPART AD—CALCIUM CARBONATE SOLVAY RECOVERY PROCESS (a) Except as provided below, the gen- eral definitions, abbreviations and BPT limitations methods of analysis set forth in 40 CFR Average of part 401 shall apply to this subpart. Pollutant or pollutant property Maximum daily values for any 1 for 30 con- (b) The term product shall mean cal- day secutive cium carbonate. days Kg/kkg (or pounds per § 415.302 Effluent limitations guide- 1,000 lb) of product lines representing the degree of effluent reduction attainable by the TSS ...... 1.16 0.58 application of the best practicable pH ...... (1) (1) control technology currently avail- 1 Within the range 6.0 to 9.0. able (BPT). (a) Except as provided in 40 CFR Subpart AE—Calcium Hydroxide 125.30 through 125.32, any existing point Production Subcategory source subject to this subpart and using the milk of lime process must § 415.310 Applicability; description of achieve the following effluent limita- the calcium hydroxide production subcategory. tions representing the degree of effluent reduction attainable by the appli- The provisions of this subpart are ap- cation of the best practicable control plicable to discharges resulting from technology currently available (BPT): the production of calcium hydroxide by the lime slaking process. SUBPART AD—CALCIUM CARBONATE MILK OF § 415.311 Specialized definitions. LIME PROCESS For the purpose of this subpart: BPT limitations (a) Except as provided below, the gen- Average of eral definitions, abbreviations and Pollutant or pollutant property Maximum daily values methods of analysis set forth in 40 CFR for any 1 for 30 con- day secutive part 401 shall apply to this subpart. days (b) The term process wastewater Kg/kkg (or pounds per means any water which, during manu- 1,000 lb) of product facturing or processing, comes into di- rect contact with or results from the TSS ...... 0.56 0.28 production or use of any raw material, 1 1 pH ...... ( ) ( ) intermediate product, finished product, 1 Within the range 6.0 to 9.0. by-product, or waste product. The term (b) Except as provided in 40 CFR ‘‘process wastewater’’ does not include 125.30 through 125.32, any existing point contaminated nonprocess wastewater, source subject to this subpart and as defined below. (c) The term process wastewater pollut- using the recovery process from Solvay ants means pollutants present in proc- process wastes, must achieve the fol- ess wastewater. lowing effluent limitations rep- (d) The term contaminated nonprocess resenting the degree of effluent reduc- wastewater shall mean any water tion attainable by the application of which, during manufacturing or proc- the best practicable control technology essing, comes into incidental contact currently available (BPT): with any raw material, intermediate product, finished product, by-product or waste product by means of (1) rainfall runoff; (2) accidental spills; (3) accidental leaks caused by the failure of process equipment, which are repaired within the shortest reasonable time not to exceed 24 hours after discovery; and (4) discharges from safety showers and related personal safety equipment:

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Provided, that all reasonable measures § 415.331 Specialized definitions. have been taken (i) to prevent, reduce For the purpose of this subpart: and control such contact to the max- (a) Except as provided below, the gen- imum extent feasible; and (ii) to mitigate the effects of such contact once it eral definitions, abbreviations and has occurred. methods of analysis set forth in 40 CFR part 401 shall apply to this subpart. § 415.312 Effluent limitations guide- (b) The term product shall mean car- lines representing the degree of ef- bon monoxide plus hydrogen. fluent reduction attainable by the (c) The term process wastewater application of the best practicable means any water which, during manu- control technology currently avail- facturing or processing, comes into di- able (BPT). rect contact with or results from the Except as provided in 40 CFR 125.30 production or use of any raw material, through 125.32, any existing point intermediate product, finished product, source subject to this subpart must by-product, or waste product. The term achieve the following effluent limita- ‘‘process wastewater’’ does not include tions representing the degree of efflu- contaminated nonprocess wastewater, ent reduction attainable by the appli- as defined below. cation of the best practicable control (d) The term process wastewater pol- technology currently available (BPT): lutants means pollutants present in There shall be no discharge of process process wastewater. wastewater pollutants to navigable (e) The term contaminated nonprocess waters. wastewater shall mean any water §§ 415.313–415.315 [Reserved] which, during manufacturing or processing, comes into incidental contact § 415.316 Pretreatment standards for with any raw material, intermediate new sources (PSNS). product, finished product, by-product Except as provided in 40 CFR 403.7, or waste product by means of (1) rain- any new source subject to this subpart fall runoff; (2) accidental spills; (3) ac- which introduces pollutants into a pub- cidental leaks caused by the failure of licly owned treatment works must process equipment, which are repaired comply with 40 CFR part 403 and within the shortest reasonable time achieve the following pretreatment not to exceed 24 hours after discovery; standards for new sources (PSNS): The and (4) discharges from safety showers limitations are the same as specified in and related personal safety equipment: § 415.312. Provided, that all reasonable measures have been taken (i) to prevent, reduce [49 FR 33421, Aug. 22, 1984] and control such contact to the maximum extent feasible; and (ii) to miti- Subpart AF—Carbon Dioxide Pro- gate the effects of such contact once it duction Subcategory [Re- has occurred. served] § 415.332 Effluent limitations guide- Subpart AG—Carbon Monoxide lines representing the degree of effluent reduction attainable by the and By-Product Hydrogen application of the best practicable Production Subcategory control technology currently available (BPT). § 415.330 Applicability; description of the carbon monoxide and by-prod- Except as provided in 40 CFR 125.30 uct hydrogen production sub- through 125.32, any existing point category. source subject to this subpart must The provisions of this subpart are ap- achieve the following effluent limita- plicable to discharges resulting from tions representing the degree of efflu- the production of carbon monoxide and ent reduction attainable by the appli- by-product hydrogen by the reforming cation of the best practicable control process. technology currently available (BPT):

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SUBPART AG—CARBON MONOXIDE cation of the best practicable control technology currently available (BPT): BPT limitations Average of SUBPART AH—CHROME PIGMENTS Pollutant or pollutant property Maximum for daily values any 1 day for 30 con- BPT effluent limitations secutive days Pollutant or pollutant property Average of Kg/kkg (or pounds per 1,000 Maximum for daily values lb) of product any 1 day for 30 con- secutive days COD ...... 0 .50 0 .25 Kg/kkg (or pounds per 1,000 TSS ...... 0 .12 0 .060 lb) of product pH ...... (1) (1) TSS ...... 9 .1 3 .8 1 Within the range 6.0 to 9.0. Chromium (T) ...... 0 .31 0 .13 Lead (T) ...... 0 .36 0 .15 Subpart AH—Chrome Pigments Zinc (T) ...... 0 .31 0.13 1 1 Production Subcategory pH ...... ( ) ( ) 1 Within the range 6.0 to 9.0. § 415.340 Applicability; description of the chrome pigments production § 415.343 Effluent limitations guide- subcategory. lines representing the degree of effluent reduction attainable by the This subpart applies to discharges to application of the best available waters of the United States and intro- technology economically achievable duction of pollutants into publicly (BAT). owned treatment works resulting from Except as provided in 40 CFR 125.30 the production of chrome pigments. through 125.32, any existing point source subject to this subpart must § 415.341 Specialized definitions. achieve the following effluent limita- For the purposes of this subpart: tions representing the degree of efflu- (a) Except as provided below, the gen- ent reduction attainable by the appli- eral definitions, abbreviations and cation of the best available technology methods of analysis set forth in part economically achievable (BAT): The 401 of this chapter shall apply to this limitations for Chromium(T), Lead(T), subpart. and Zinc(T) are the same as specified (b) The term chrome pigments means in § 415.342. chrome yellow, chrome orange, molyb- date chrome orange, anhydrous and hy- § 415.344 Pretreatment standards for existing sources (PSES). drous chromium oxide, chrome green, and zinc yellow. (a) Existing sources which annually (c) The term product means chrome introduce less than 210,000 cubic meters pigments. per year (55 million gallons per year) of chrome pigments process wastewater § 415.342 Effluent limitations guide- into a publicly owned treatment works lines representing the degree of ef- are subject only to the standards speci- fluent reduction attainable by the fied in 40 CFR part 403. application of the best practicable (b) Except as provided in 40 CFR 403.7 control technology currently avail- and 403.13 and paragraph (a) of this sec- able (BPT). tion, any existing source subject to Except as provided in 40 CFR 125.30 this subpart which introduces pollut- through 125.32, any existing point ants into a publicly owned treatment source subject to this subpart must works must comply with 40 CFR part achieve the following effluent limita- 403 and achieve the following tions representing the degree of efflu- pretreatment standards for existing ent reduction attainable by the appli- sources (PSES):

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SUBPART AH—CHROME PIGMENTS Subpart AI—Chromic Acid

PSES effluent limitations Production Subcategory Average of § 415.350 Applicability; description of Pollutant or pollutant property Maximum for daily values any 1 day for 30 con- the chromic acid production sub- secutive days category.

Milligrams per liter (mg/l) The provisions of this subpart are ap- plicable to discharges resulting from Chromium (T) ...... 2 .9 1 .2 the production of chromic acid in fa- Lead (T) ...... 3 .4 1 .4 Zinc (T) ...... 2 .9 1 .2 cilities which also manufacture sodium dichromate. In cases where POTWs find it necessary § 415.351 Specialized definitions. [Re- to impose mass limitations, the fol- served] lowing equivalent mass limitations are provided as an alternate: The limita- § 415.352 Effluent limitations guide- tions for Chromium(T), Lead(T), and lines representing the degree of ef- Zinc(T) are the same as specified in fluent reduction attainable by the § 415.342 application of the best practicable control technology currently avail- § 415.345 New source performance able (BPT). standards (NSPS). Except as provided in 40 CFR 125.30 Any new source subject to this sub- through 125.32, any existing point part must achieve the following new source subject to this subpart must source performance standards (NSPS): achieve the following effluent limita- The limitations are the same as speci- tions representing the degree of efflu- fied in § 415.342. ent reduction attainable by the application of the best practicable control § 415.346 Pretreatment standards for technology currently available (BPT): new sources (PSNS). There shall be no discharge of process Except as provided in 40 CFR 403.7, wastewater pollutants to navigable any new source subject to this subpart waters, except as provided for in which introduces pollutants into a pub- § 415.172. licly owned treatment works must comply with 40 CFR part 403 and §§ 415.353–415.355 [Reserved] achieve the following Pretreatment Standards for New Sources (PSNS): § 415.356 Pretreatment standards for The limitations are the same as speci- new sources (PSNS). fied in § 415.344. Except as provided in 40 CFR 403.7, [47 FR 55227, Dec. 8, 1982] any new source subject to this subpart which introduces pollutants into a pub- § 415.347 Effluent limitations guide- licly owned treatment works must lines representing the degree of ef- comply with 40 CFR part 403 and fluent reduction attainable by the achieve the following pretreatment application of the best conventional standards for new sources (PSNS): The pollutant control technology (BCT). limitations are the same as specified in Except as provided in 40 CFR 125.30 § 415.352. through 125.32, any existing point source subject to this subpart must [49 FR 33421, Aug. 22, 1984] achieve the following effluent limitations representing the degree of efflu- Subpart AJ—Copper Salts ent reduction attainable by the appli- Production Subcategory cation of the best conventional pollutant control technology (BCT): The lim- SOURCE: 49 FR 33421, Aug. 22, 1984, unless itations are the same for TSS and pH otherwise noted. as specified in § 415.342. [47 FR 55227, Dec. 8, 1982]

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§ 415.360 Applicability; description of SUBPART AJ—COPPER SULFATE, COPPER the copper salts production sub- CHLORIDE, COPPER IODIDE, COPPER NITRATE category. BPT effluent limitations The provisions of this subpart are ap- Average of plicable to discharges and to the intro- Pollutant or pollutant property Maximum for daily values duction of pollutants into treatment any 1 day for 30 con- secutive days works which are publicly owned resulting from the production of copper salts, Kg/kkg (or pounds per/1,000 including (a) copper sulfate, copper lb) of product chloride, copper iodide, and copper ni- TSS ...... 0 .069 0.023 trate, and (b) copper carbonate. Copper (T) ...... 0 .0030 0 .0010 Nickel (T) ...... 0.0060 0 .0020 Selenium (T) ...... 0 .0015 0 .00050 § 415.361 Specialized definitions. pH ...... (1) (1) For the purpose of this subpart: 1 Within the range 6.0 to 9.0. (a) Except as provided below, the gen- (b) Except as provided in 40 CFR eral definitions, abbreviations, and 125.30 through 125.32 any existing point methods of analysis set forth in part source subject to this subpart and pro- 401 of this chapter shall apply to this ducing copper carbonate must achieve subpart. the following effluent limitations rep- (b) The term product shall mean cop- resenting the degree of effluent reduc- per salts. tion attainable by the application of (c) The term copper shall mean the the best practicable control technology total copper present in the process currently available (BPT): wastewater stream exiting the wastewater treatment system. SUBPART AJ—COPPER CARBONATE (d) The term selenium shall mean the BPT effluent limitations total selenium present in the process Average of wastewater stream exiting the waste- Pollutant or pollutant property Maximum for daily values water treatment system. any 1 day for 30 con- secutive days (e) The term nickel shall mean the total nickel present in the process Kg/kkg (or pounds per/1,000 wastewater stream exiting the waste- lb) of product water treatment system. TSS ...... 4 .2 1 .4 Copper (T) ...... 0 .19 0.064 § 415.362 Effluent limitations guide- Nickel (T) ...... 0.37 0 .12 Selenium (T) ...... 0 .093 0 .031 lines representing the degree of ef- pH ...... (1) (1) fluent reduction attainable by the application of the best practicable 1 Within the range 6.0 to 9.0. control technology currently avail- § 415.363 Effluent limitations guide- able (BPT). lines representing the degree of ef- (a) Except as provided in 40 CFR fluent reduction attainable by the 125.30 through 125.32 any existing point application of the best available source subject to this subpart and pro- technology economically achievable (BAT). ducing copper sulfate, copper chloride, copper iodide, or copper nitrate must (a) Except as provided in 40 CFR achieve the following effluent limita- 125.30 through 125.32, any existing point tions representing the degree of efflu- source subject to this subpart and pro- ent reduction attainable by the appli- ducing copper sulfate, copper chloride, copper iodide, or copper nitrate must cation of the best practicable control achieve the following effluent limita- technology currently available (BPT). tions representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT): The limitations for copper (T), nickel (T), and selenium (T) are the same as specified in § 415.362(a).

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(b) Except as provided in 40 CFR SUBPART AJ—COPPER CARBONATE 125.30 through 125.32, any existing point source subject to this subpart and pro- PSES effluent limitations ducing copper carbonate must achieve Average of Pollutant or pollutant property Maximum for daily values the following effluent limitations rep- any 1 day for 30 con- resenting the degree of effluent reduc- secutive days tion attainable by the application of Milligrams per liter (mg/l) the best available technology economi- Copper (T) ...... 3 .2 1 .1 cally achievable (BAT): The limita- Nickel (T) ...... 6.4 2.1 tions for copper (T), nickel (T) and se- Selenium (T) ...... 1 .6 0 .53 lenium (T) are the same as specified in § 415.362(b). In cases where POTWs find it necessary to impose mass limitations, the fol- § 415.364 Pretreatment standards for lowing equivalent mass limitations are existing sources (PSES). provided as an alternate: The limita- (a) Except as provided in 40 CFR 403.7 tions for copper (T), nickel (T), and se- and 403.13, any existing source subject lenium (T) are the same as specified in to this subpart and producing copper § 415.362(b). sulfate, copper chloride, copper iodide, § 415.365 New source performance or copper nitrate which introduces pol- standards (NSPS). lutants into a publicly owned treat- (a) Any new source subject to this ment works must comply with 40 CFR subpart and producing copper sulfate, part 403 and achieve the following copper chloride, copper iodide, or cop- pretreatment standards for existing per nitrate must achieve the following sources (PSES): new source performance standards (NSPS): The limitations for pH, TSS, SUBPART AJ—COPPER SULFATE, COPPER copper (T), nickel (T), and selenium CHLORIDE, COPPER IODIDE, COPPER NITRATE (T), are the same as specified in § 415.362(a). PSES effluent limitations (b) Any new source subject to this Average of subpart and producing copper car- Pollutant or pollutant property Maximum for daily values any 1 day for 30 con- bonate must achieve the following new secutive days source performance standards (NSPS): The limitations for pH, TSS, copper Milligrams per liter (mg/l) (T), nickel (T), and selenium (T) are Copper(T) ...... 3 .2 1 .1 the same as specified in § 415.362(b). Nickel(T) ...... 6 .4 2 .1 Selenium(T) ...... 1 .6 0 .53 § 415.366 Pretreatment standards for new sources (PSNS). In cases where POTWs find it necessary (a) Except as provided in 40 CFR to impose mass limitations, the fol- 403.7, any new source subject to this lowing equivalent mass limitations are subpart and producing copper sulfate, provided as an alternate: The limita- copper chloride, copper iodide, or cop- tions for copper (T), nickel (T), and se- per nitrate which introduces pollutants lenium (T) are the same as specified in into a publicly owned treatment works § 415.362(a). must comply with 40 CFR part 403 and (b) Except as provided in 40 CFR 403.7 achieve the following pretreatment standards for new sources (PSNS): The and 403.13, any existing source subject limitations for copper (T), nickel (T), to this subpart and producing copper and selenium (T) are the same as speci- carbonate which introduces pollutants fied in § 415.364(a). into a publicly owned treatment works (b) Except as provided in 40 CFR must comply with 40 CFR part 403 and 403.7, any new source subject to this achieve the following pretreatment subpart and producing copper car- standards for existing sources (PSES): bonate which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment

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standards for new sources (PSNS): The rect contact with or results from the limitations for copper (T), nickel (T), production or use of any raw material, and selenium (T) are the same as speci- intermediate product, finished product, fied in § 415.364(b). by-product, or waste product. The term ‘‘process wastewater’’ does not include § 415.367 Effluent limitations guide- contaminated nonprocess wastewater, lines representing the degree of ef- as defined below. fluent reduction attainable by the application of the best conventional (c) The term process wastewater pollut- pollutant control technology (BCT). ants means pollutants present in proc- (a) Except as provided in 40 CFR ess wastewater. 125.30 through 125.32 any existing point (d) The term contaminated nonprocess source subject to this subpart and pro- wastewater shall mean any water ducing copper sulfate, copper chloride, which, during manufacturing or proc- copper iodide, or copper nitrate must essing, comes into incidental contact achieve the following effluent limita- with any raw material, intermediate tions representing the degree of efflu- product, finished product, by-product ent reduction attainable by the appli- or waste product by means of (1) rain- cation of the best conventional pollut- fall runoff; (2) accidental spills; (3) ac- ant control technology (BCT): The lim- cidental leaks caused by the failure of itations are the same for TSS and pH process equipment, which are repaired as specified in § 415.362(a). within the shortest reasonable time (b) Except as provided in 40 CFR not to exceed 24 hours after discovery; 125.30 through 125.32 any existing point and (4) discharges from safety showers source subject to this subpart and pro- and related personal safety equipment: ducing copper carbonate must achieve Provided, that all reasonable measures the following effluent limitations rep- have been taken (i) to prevent, reduce resenting the degree of effluent reduc- and control such contact to the max- tion attainable by the application of imum extent feasible; and (ii) to miti- the best conventional pollutant control gate the effects of such contact once it technology (BCT): The limitations are has occurred. the same for TSS and pH as specified in § 415.362(b). § 415.382 Effluent limitations guidelines representing the degree of effluent reduction attainable by the Subpart AK—Cuprous Oxide Pro- application of the best practicable duction Subcategory [Re- control technology currently avail- served] able (BPT). Except as provided in 40 CFR 125.30 Subpart AL—Ferric Chloride through 125.32, any existing point Production Subcategory source subject to this subpart must achieve the following effluent limita- § 415.380 Applicability; description of tions representing the degree of efflu- the ferric chloride production sub- ent reduction attainable by the appli- category. cation of the best practicable control The provisions of this subpart are ap- technology currently available (BPT): plicable to discharges and to the intro- There shall be no discharge of process duction of pollutants into treatment wastewater pollutants to navigable works which are publicly owned result- waters. ing from the production of ferric chloride from pickle liquor. § 415.383 [Reserved]

§ 415.381 Specialized definitions. § 415.384 Pretreatment standards for (a) Except as provided below, the gen- existing sources (PSES). eral definitions, abbreviations and Except as provided in 40 CFR 403.7 methods of analysis set forth in 40 CFR and 403.13, any existing source subject part 401 shall apply to this subpart. to this subpart which introduces pol- (b) The term process wastewater lutants into a publicly owned treat- means any water which, during manu- ment works must comply with 40 CFR facturing or processing, comes into di- part 403 and achieve the following

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pretreatment standards for existing ‘‘process wastewater’’ does not include sources (PSES): contaminated non-process wastewater, as defined below. SUBPART AL—FERRIC CHLORIDE (c) The term process wastewater pollut- PSES limitations ants means pollutants present in process wastewater. Average of Pollutant or pollutant property Maximum for daily values (d) The term contaminated nonprocess any 1 day for 30 con- wastewater shall mean any water secutive days which, during manufacturing or proc- Milligrams per liter (mg/l) essing, comes into incidental contact with any raw material, intermediate Total Chromium ...... 3 .0 1 .0 Hexavalent Chromium ...... 0 .25 0.09 product, finished product, by-product Copper (T) ...... 1 .0 0 .50 or waste product by means of (1) Nickel (T) ...... 2.0 1.0 rainall runoff; (2) accidental spills; (3) Zinc (T) ...... 5 .0 2 .5 accidental leaks caused by the failure of process equipment, which are re- § 415.385 [Reserved] paired within the shortest reasonable time not to exceed 24 hours after dis- § 415.386 Pretreatment standards for covery; and (4) discharges from safety new sources (PSNS). showers, and related personal safety Except as provided in 40 CFR 403.7, equipment: Provided, that all reason- any new source subject to this subpart able measures have been taken (i) to which introduces pollutants into a pub- prevent, reduce and control such con- licly owned treatment works must tact to the maximum extent feasible; comply with 40 CFR part 403 and and (ii) to mitigate the effects of such achieve the following pretreatment contact once it has occurred. standards for new sources (PSNS): The limitations are the same as specified in § 415.402 Effluent limitations guide- § 415.382. lines representing the degree of effluent reduction attainable by the [49 FR 33423, Aug. 22, 1984] application of the best practicable control technology currently avail- Subpart AM—Ferrous Sulfate Pro- able (BPT). duction Subcategory [Re- Except as provided in 40 CFR 125.30 served] through 125.32, any existing point source subject to this subpart must Subpart AN—Fluorine Production achieve the following effluent limita- Subcategory tions representing the degree of effluent reduction attainable by the appli- § 415.400 Applicability; description of cation of the best practicable control the fluorine production sub- technology currently available (BPT): category. There shall be no discharge of process The provisions of this subpart are ap- wastewater pollutants to navigable plicable to discharges resulting from waters. the production of fluorine by the liquid hydrofluoric acid electrolysis process. §§ 415.403–415.405 [Reserved]

§ 415.401 Specialized definitions. § 415.406 Pretreatment standards for new sources (PSNS). (a) Except as provided below, the gen- eral definitions, abbreviations and Except as provided in 40 CFR 403.7, methods of analysis set forth in 40 CFR any new source subject to this subpart part 401 shall apply to this subpart. which introduces pollutants into a pub- (b) The term process wastewater licly owned treatment works must means any water which, during manu- comply with 40 CFR part 403 and facturing or processing, comes into di- achieve the following pretreatment rect contact with or results from the standards for new sources (PSNS): The production or use of any raw material, limitations are the same as specified in intermediate product, finished product, § 415.402. by-product, or waste product. The term [49 FR 33423, Aug. 22, 1984]

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Subpart AO—Hydrogen source subject to this subpart must Production Subcategory achieve the following effluent limitations representing the degree of efflu- § 415.410 Applicability; description of ent reduction attainable by the appli- the hydrogen production sub- cation of the best practicable control category. technology currently available (BPT): The provisions of this subpart are ap- There shall be no discharge of process plicable to discharges resulting from wastewater pollutants to navigable the production of hydrogen as a refin- waters, except as provided for in part ery by-product. 419 of this chapter (39 FR 16560). § 415.411 Specialized definitions. Subpart AP—Hydrogen Cyanide (a) Except as provided below, the gen- eral definitions, abbreviations and Production Subcategory methods of analysis set forth in 40 CFR part 401 shall apply to this subpart. § 415.420 Applicability; description of the hydrogen cyanide production (b) The term process wastewater subcategory. means any water which, during manufacturing or processing, comes into di- This subpart applies to discharges to rect contact with or results from the waters of the United States and intro- production or use of any raw material, duction of pollutants into publicly intermediate product, finished product, owned treatment works resulting from by-product, or waste product. The term the production of hydrogen cyanide by ‘‘process wastewater’’ does not include the Andrussow process. contaminated nonprocess wastewater, as defined below. § 415.421 Specialized definitions. (c) The term process wastewater pollut- For the purposes of this subpart: ants means pollutants present in process wastewater. (a) Except as provided below, the gen- (d) The term contaminated nonprocess eral definitions, abbreviations and wastewater shall mean any water methods of analysis set forth in part which, during manufacturing or proc- 401 of this chapter shall apply to this essing, comes into incidental contact subpart. with any raw material, intermediate (b) The term product means hydrogen product, finished product, by-product cyanide. or waste product by means of (1) rain- (c) The term Cyanide A means those fall runoff; (2) accidental spills; (3) ac- cyanides amenable to chlorination and cidental leaks caused by the failure of is determined by the methods specified process equipment, which are repaired in 40 CFR 136.3. within the shortest reasonable time not to exceed 24 hours after discovery; § 415.422 Effluent limitations guide- and (4) discharges from safety showers lines representing the degree of ef- and related personal safety equipment: fluent reduction attainable by the Provided, that all reasonable measures application of the best practicable have been taken (i) to prevent, reduce control technology currently avail- and control such contact to the max- able (BPT). imum extent feasible; and (ii) to miti- Except as provided in 40 CFR 125.30 gate the effects of such contact once it through 125.32, any existing point has occurred. source subject to this subpart must § 415.412 Effluent limitations guide- achieve the following effluent limita- lines representing the degree of ef- tions representing the degree of efflu- fluent reduction attainable by the ent reduction attainable by the appli- application of the best practicable cation of the best practicable control control technology currently avail- technology currently available (BPT): able (BPT). Except as provided in 40 CFR 125.30 through 125.32, any existing point

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SUBPART AP—HYDROGEN CYANIDE SUBPART AP—HYDROGEN CYANIDE—Continued

BPT effluent limitations NSPS effluent limitations

Pollutant or pollutant property Average of Average of Maximum for daily values Pollutant or pollutant property Maximum for daily values any 1 day for 30 con- any 1 day for 30 con- secutive days secutive days

Kg/kkg (or pounds per 1,000 Total Cyanide ...... 0 .65 0 .23 lb) of product Total Residual Chlorine ...... 0 .086 0 .051 Ph ...... (1) (1) TSS ...... 8 .6 3 .2 Cyanide A ...... 0 .10 0 .021 1 Within the range 6.0 to 10.5. Total Cyanide ...... 0 .65 0 .23 pH ...... (1) (1) § 415.426 Pretreatment standards for 1 Within the range 6.0 to 10.5. new sources (PSNS). § 415.423 Effluent limitations guide- Except as provided in 40 CFR 403.7, lines representing the degree of ef- any new source subject to this subpart fluent reduction attainable by the which introduces pollutants into a pub- application of the best available licly owned treatment works must technology economically achievable (BAT). comply with 40 CFR part 403 and achieve the following Pretreatment Except as provided in 40 CFR 125.30 Standards for New Sources (PSNS): through 125.32, any existing point source subject to this subpart must SUBPART AP—HYDROGEN CYANIDE achieve the following effluent limitations representing the degree of efflu- PSNS effluent limita- ent reduction attainable by the appli- tions cation of the best available technology Average of Pollutant or pollutant property Maximum daily val- economically achievable (BAT): for any 1 ues for 30 day consecu- SUBPART AP—HYDROGEN CYANIDE tive days

BAT effluent limitations Milligrams per liter

Average of Cyanide A ...... 1 .7 0 .36 Pollutant or pollutant property Maximum for daily values any 1 day for 30 con- Total Cyanide ...... 11 4 .0 secutive days

Kg/kkg (or pounds per 1,000 In cases where POTWs find it necessary lb) of product to impose mass limitations, the following equivalent mass limitations are Cyanide A ...... 0 .10 0 .021 Total Cyanide ...... 0 .65 0 .23 provided as an alternate: The limita- Total Residual Chlorine ...... 0 .086 0 .051 tions for Cyanide A and Total Cyanide are the same as specified in § 415.425. § 415.424 [Reserved] [47 FR 55227, Dec. 8, 1982] § 415.425 New source performance standards (NSPS). § 415.427 Effluent limitations guidelines representing the degree of ef- Any new source subject to this sub- fluent reduction attainable by the part must achieve the following new application of the best conventional source performance standards (NSPS): pollutant control technology (BCT). Except as provided in 40 CFR 125.30 SUBPART AP—HYDROGEN CYANIDE through 125.32, any existing point NSPS effluent limitations source subject to this subpart must achieve the following effluent limita- Pollutant or pollutant property Average of Maximum for daily values tions representing the degree of efflu- any 1 day for 30 con- secutive days ent reduction attainable by the application of the best conventional pollut- Kg/kkg (or pounds per 1,000 lb) of product ant control technology (BCT): The limitations are the same for TSS and pH TSS ...... 8 .6 3 .2 as specified in § 415.422. Cyanide A ...... 0 .10 0 .021

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Subpart AQ—Iodine Production § 415.432 Effluent limitations guide- Subcategory lines representing the degree of effluent reduction attainable by the application of the best practicable § 415.430 Applicability; description of control technology currently avail- the iodine production subcategory. able (BPT). The provisions of this subpart are ap- Except as provided in 40 CFR 125.30 plicable to discharges resulting from through 125.32, any existing point the production of iodine. source subject to this subpart must achieve the following effluent limita- § 415.431 Specialized definitions. tions representing the degree of efflu- For the purpose of this subpart: ent reduction attainable by the appli- (a) Except as provided below, the gen- cation of the best practicable control eral definitions, abbreviations and technology currently available (BPT): methods of analysis set forth in part There shall be no discharge of process wastewater pollutants to navigable 401 of this chapter shall apply to this waters. subpart. (b) The term process wastewater §§ 415.433–415.435 [Reserved] means any water which, during manufacturing or processing, comes into di- § 415.436 Pretreatment standards for rect contact with or results from the new sources (PSNS). production or use of any raw material, Except as provided in 40 CFR 403.7, intermediate product, finished product, any new source subject to this subpart by-product, or waste product. The term which introduces pollutants into a pub- ‘‘process wastewater’’ does not include licly owned treatment works must contaminated non-process wastewater, comply with 40 CFR part 403 and as defined below. achieve the following pretreatment (c) The term process wastewater pollut- standards for new sources (PSNS): The limitations are the same as specified in ants means pollutants present in proc- § 415.432. ess wastewater. (d) The term contaminated non-process [49 FR 33423, Aug. 22, 1984] wastewater shall mean any water which, during manufacturing or proc- Subpart AR—Lead Monoxide essing, comes into incidental contact Production Subcategory with any raw material, intermediate product, finished product, by-product § 415.440 Applicability; description of or waste product by means of (1) rain- the lead monoxide production subcategory. fall runoff; (2) accidental spills; (3) accidental leaks caused by the failure of The provisions of this subpart are ap- process equipment, which are repaired plicable to discharges and to the intro- duction of pollutants into treatment within the shortest reasonable time works which are publicly owned result- not to exceed 24 hours after discovery; ing from the production of lead mon- and (4) discharges from safety showers oxide. and related personal safety equipment: Provided, that all reasonable measures § 415.441 Specialized definitions. have been taken (i) to prevent, reduce For the purpose of this subpart: and control such contact to the max- (a) Except as provided below, the gen- imum extent feasible; and (ii) to miti- eral definitions, abbreviations and gate the effects of such contact once it methods of analysis set forth in part has occurred. 401 of this chapter shall apply to this [47 FR 28278, June 29, 1982; 47 FR 55227, Dec. subpart. 8, 1982] (b) The term process wastewater means any water which, during manufacturing or processing, comes into di- rect contact with or results from the production or use of any raw material, intermediate product, finished product,

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by-product, or waste product. The term SUBPART AR—LEAD MONOXIDE ‘‘process wastewater’’ does not include contaminated non-process wastewater, PSES effluent limitations as defined below. Pollutant or pollutant property Average of (c) The term process wastewater pollut- Maximum for daily values any 1 day for 30 con- ants means pollutants present in proc- secutive days ess wastewater. (d) The term contaminated non-process Milligrams per liter (mg/1) wastewater shall mean any water Lead ...... 2 .0 1 .0 which, during manufacturing or processing, comes into incidental contact with any raw material, intermediate § 415.445 [Reserved] product, finished product, by-product or waste product by means of (1) rain- § 415.446 Pretreatment standards for new sources (PSNS). fall runoff; (2) accidental spills; (3) accidental leaks caused by the failure of Except as provided in 40 CFR 403.7, process equipment, which are repaired any new source subject to this subpart within the shortest reasonable time which introduces pollutants into a pub- not to exceed 24 hours after discovery; licly owned treatment works must and (4) discharges from safety showers comply with 40 CFR part 403 and and related personal safety equipment; achieve the following pretreatment Provided, that all reasonable measures standards for new sources (PSNS): The have been taken (i) to prevent, reduce limitations are the same as specified in and control such contact to the max- § 415.442. imum extent feasible; and (ii) to mitigate the effects of such contact one it [49 FR 33423, Aug. 22, 1984] has occurred. Subpart AS—Lithium Carbonate [47 FR 28278, June 29, 1982; 47 FR 55227, Dec. 8, 1982] Production Subcategory

§ 415.442 Effluent limitations guide- § 415.450 Applicability; description of lines representing the degree of ef- the lithium carbonate production fluent reduction attainable by the subcategory. application of the best practicable The provisions of this subpart are ap- control technology currently available (BPT). plicable to discharges resulting from the production of lithium carbonate by Except as provided in 40 CFR 125.30 the Trona process and from spodumene through 125.32, any existing point ore. source subject to this subpart must achieve the following effluent limita- § 415.451 Specialized definitions. tions representing the degree of effluent reduction attainable by the appli- For the purpose of this subpart: cation of the best practicable control (a) Except as provided below, the gen- technology currently available (BPT): eral definitions, abbreviations and There shall be no discharge of process methods of analysis set forth in part wastewater pollutants to navigable 401 of this chapter shall apply to this waters. subpart. (b) The term product shall mean lith- § 415.443 [Reserved] ium carbonate.

§ 415.444 Pretreatment standards for § 415.452 Effluent limitations guide- existing sources (PSES). lines representing the degree of ef- Except as provided in 40 CFR 403.7 fluent reduction attainable by the and 403.13, any existing source subject application of the best practicable to this subpart which introduces pol- control technology currently avail- lutants into a publicly owned treat- able (BPT). ment works must comply with 40 CFR (a) Except as provided in 40 CFR part 40 and achieve the following 125.30 through 125.32, any existing point pretreatment standards for existing source subject to this subpart and sources (PSES): using the Trona process must achieve

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the following effluent limitations rep- (a) Except as provided below, the gen- resenting the degree of effluent reduc- eral definitions, abbreviations, and tion attainable by the application of methods of analysis set forth in part the best praticable control technology 401 of this chapter shall apply to this currently available (BPT): There shall subpart. be no discharge of process wastewater (b) The term product shall mean nick- pollutants to navigable waters, except el salts. that residual brine and depleted liquor (c) The term nickel shall mean the may be returned to the body of water total nickel present in the process from which the process brine solution wastewater stream exiting the waste- was originally withdrawn. water treatment system. (b) Except as provided in 40 CFR 125.30 through 125.32, any existing point (d) The term copper shall mean the source subject to this subpart and total copper present in the process using spodumene ore must achieve the wastewater stream exiting the waste- following effluent limitations rep- water treatment system. resenting the degree of effluent reduction attainable by the application of § 415.472 Effluent limitations guide- the best practicable control technology lines representing the degree of effluent reduction attainable by the currently available (BPT): application of the best practicable control technology currently avail- SUBPART AS—LITHIUM CARBONATE able (BPT). BPT effluent limitations (a) Except as provided in 40 CFR 125.30 through 125.32 any existing point Pollutant or pollutant property Average of Maximum for daily values source subject to this subpart and pro- any 1 day for 30 con- secutive days ducing nickel sulfate, nickel chloride, nickel nitrate, or nickel fluoborate Kg/kkg (or pounds per 1,000 pounds) of product must achieve the following effluent limitations representing the degree of TSS ...... 2 .7 0 .90 effluent reduction attainable by the ap- ...... (1) (1) plication of the best practicable con- 1 Within the range 6.0 to 9.0. trol technology currently available (BPT): Subpart AT—Manganese Sulfate Production Subcategory [Re- SUBPART AU—NICKEL SULFATE, NICKEL CHLO- served] RIDE, NICKEL NITRATE, NICKEL FLUOBORATE

BPT effluent limitations Subpart AU—Nickel Salts Pollutant or pollutant property Average of Production Subcategory Maximum for daily values any 1 day for 30 con- secutive days SOURCE: 49 FR 33423, Aug. 22, 1984, unless otherwise noted. Kg/kkg (or pounds per/1,000 lb) of product

§ 415.470 Applicability; description of TSS ...... 0 .096 0.032 the nickel salts production sub- Nickel (T) ...... 0.0060 0 .0020 category. pH ...... (1) (1)

The provisions of this subpart are ap- 1 Within the range 6.0 to 9.0. plicable to discharges and to the intro- duction of pollutants into treatment (b) Except as provided in 40 CFR works which are publicly owned result- 125.30 through 125.32 any existing point ing from the production of nickel salts, source subject to this subpart and pro- including (a) nickel sulfate, nickel ducing nickel carbonate must achieve chloride, nickel nitrate, and nickel flu- the following effluent limitations rep- oborate, and (b) nickel carbonate. resenting the degree of effluent reduction attainable by the application of § 415.471 Specialized definitions. the best practicable control technology For the purpose of this subpart: currently available (BPT):

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SUBPART AU—NICKEL CARBONATE SUBPART AU—NICKEL CARBONATE

BPT effluent limitations BAT effluent limitations

Kg/kkg (or pounds per/1,000 Kg/kkg (or pounds per/1,000 lb) of product lb) or product

TSS ...... 17 . 5 .6 Copper (T) ...... 0 .13 0.042 Nickel (T) ...... 1.1 0.35 Nickel (T) ...... 0.13 0 .042 pH ...... (1) (1)

1 Within the range 6.0 to 9.0. § 415.474 Pretreatment standards for existing sources (PSES). § 415.473 Effluent limitations guidelines representing the degree of ef- (a) Except as provided in 40 CFR 403.7 fluent reduction attainable by the and 403.13, any existing source subject application of the best available to this subpart and producing nickel technology economically achievable sulfate, nickel chloride, nickel nitrate, (BAT). or nickel fluoborate which introduces (a) Except as provided in 40 CFR pollutants into a publicly owned treat- 125.30 through 125.32 any existing point ment works must comply with 40 CFR source subject to this subpart and pro- part 403 and achieve the following ducing nickel sulfate, nickel chloride, pretreatment standards for existing nickel nitrate, or nickel fluoborate sources (PSES): must achieve the following effluent limitations representing the degree of SUBPART AU—NICKEL SULFATE, NICKEL CHLO- effluent reduction attainable by the ap- RIDE, NICKEL NITRATE, NICKEL FLUOBORATE plication of the best available technology economically achievable (BAT): PSES effluent limitations Pollutant or pollutant property Average of SUBPART AU—NICKEL SULFATE, NICKEL CHLO- Maximum for daily values any 1 day for 30 con- RIDE, NICKEL NITRATE, NICKEL FLUOBORATE secutive days

BAT effluent limitations Milligrams per liter (mg/l) Average of Pollutant or pollutant property Maximum for daily values Copper(T) ...... 1 .1 0 .36 any 1 day for 30 con- Nickel(T) ...... 1 .1 0 .36 secutive days

Kg/kkg (or pounds per/1,000 In cases where POTWs find it necessary lb) of product to impose mass limitations, the following equivalent mass limitations are Copper (T) ...... 0 .00074 0 .00024 Nickel (T) ...... 0.00074 0 .00024 provided as an alternate: The limitations for copper (T) and nickel (T) are (b) Except as provided in 40 CFR the same as specified in § 415.473(a). 125.30 through 125.32 any existing point (b) Except as provided in 40 CFR 403.7 source subject to this subpart and pro- and 403.13, any existing source subject ducing nickel carbonate must achieve to this subpart and producing nickel the following effluent limitations rep- carbonate which introduces pollutants resenting the degree of effluent reduc- into a publicly owned treatment works tion attainable by the application of must comply with 40 CFR part 403 and the best available technology economi- achieve the following pretreatment cally achievable (BAT): standards for existing sources (PSES):

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SUBPART AU—NICKEL CARBONATE SUBPART AU—NICKEL CARBONATE—Continued

PSES effluent limitations NSPS effluent limitations

Milligrams per liter (mg/l) pH ...... (1) (1) 1 Within the range 6.0 to 9.0. Copper(T) ...... 1 .1 0 .36 Nickel(T) ...... 1 .1 0 .36 § 415.476 Pretreatment standards for new sources (PSNS). In cases where POTWs find it necessary (a) Except as provided in 40 CFR to impose mass limitations, the fol- 403.7, any new source subject to this lowing equivalent mass limitations are subpart and producing nickel sulfate, provided as an alternate: The limita- nickel chloride, nickel fluoborate or tions for copper (T) and nickel (T) are nickel nitrate which introduces pollut- the same as specified in § 415.473(b). ants into a publicly owned treatment § 415.475 New source performance works must comply with 40 CFR part standards (NSPS). 403 and achieve the following pretreatment standards for new (a) Any new source subject to this sources (PSNS): The limitations for subpart and producing nickel sulfate, copper (T) and nickel (T) are the same nickel chloride, nickel fluorobate or as specified in § 415.474(a). nickel nitrate must achieve the fol- (b) Except as provided in 40 CFR lowing new source performance stand- 403.7, any new source subject to this ards (NSPS): subpart and producing nickel carbonate which introduces pollutants SUBPART AU—NICKEL SULFATE, NICKEL CHLO- into a publicly owned treatment works RIDE, NICKEL NITRATE, AND NICKEL FLUO- must comply with 40 CFR part 403 and BORATE achieve the following pretreatment NSPS effluent limitations standards for new sources (PSNS): The limitations for copper (T) and nickel Average of Pollutant or pollutant property Maximum for daily values (T) are the same as specified in any 1 day for 30 con- § 415.474(b). secutive days

Kg/kkg (or pounds per 1,000 § 415.477 Effluent limitations guide- lb) of product lines representing the degree of effluent reduction attainable by the TSS ...... 0 .096 0.032 application of the best conventional Copper ...... 0 .00074 0 .00024 pollutant control technology (BCT). Nickel ...... 0 .00074 0 .00024 pH ...... (1) (1) (a) Except as provided in 40 CFR 1 Within the range 6.0 to 9.0. 125.30 through 125.32 any existing point source subject to this subpart and pro- (b) Any new source subject to this ducing nickel sulfate, nickel chloride, subpart and producing nickel car- nickel fluoborate or nickel nitrate bonate must achieve the following new must achieve the following effluent source performance standards (NSPS): limitations representing the degree of effluent reduction attainable by the ap- SUBPART AU—NICKEL CARBONATE plication of the best conventional pol- NSPS effluent limitations lutant control technology (BCT): The limitations are the same for TSS and Average of Pollutant or pollutant property Maximum for daily values pH as specified in § 415.472(a). any 1 day for 30 con- (b) Except as provided in 40 CFR secutive days 125.30 through 125.32 any existing point Kg/kkg (or pounds per/1,000 source subject to this subpart and pro- lb) or product ducing nickel carbonate must achieve TSS ...... 17 . 5 .6 the following effluent limitations rep- Copper ...... 0 .13 0 .042 resenting the degree of effluent reduc- Nickel ...... 0 .13 0 .042 tion attainable by the application of

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the best conventional pollutant control by the Trona process and by the min- technology (BCT): The limitations are ing process. the same for TSS and pH as specified in § 415.472(b). § 415.501 Specialized definitions. [Re- served] Subpart AV—Strong Nitric Acid § 415.502 Effluent limitations guide- Production Subcategory [Re- lines representing the degree of ef- served] fluent reduction attainable by the application of the best practicable Subpart AW—Oxygen and control technology currently avail- Nitrogen Production Subcategory able (BPT). Except as provided in 40 CFR 125.30 § 415.490 Applicability; description of through 125.32, any existing point the oxygen and nitrogen production source subject to this subpart must subcategory. achieve the following effluent limita- The provisions of this subpart are ap- tions representing the degree of efflu- plicable to discharges resulting from ent reduction attainable by the appli- the production of oxygen and nitrogen cation of the best practicable control by air liquification. technology currently available (BPT): There shall be no discharge of process § 415.491 Specialized definitions. [Re- wastewater pollutants to navigable served] waters, except that residual brine and § 415.492 Effluent limitations guide- depleted liquor may be returned to the lines representing the degree of ef- body of water from which the process fluent reduction attainable by the brine solution was originally with- application of the best practicable drawn. control technology currently available (BPT). §§ 415.503–415.505 [Reserved] Except as provided in 40 CFR 125.30 through 125.32, any existing point § 415.506 Pretreatment standards for source subject to this subpart must new sources (PSNS). achieve the following effluent limita- Except as provided in 40 CFR 403.7, tions representing the degree of efflu- any new source subject to this subpart ent reduction attainable by the appli- which introduces pollutants into a pub- cation of the best practicable control licly owned treatment works must technology currently available (BPT): comply with 40 CFR part 403 and achieve the following pretreatment SUBPART AW—OXYGEN AND NITROGEN standards for new sources (PSNS): The BPT effluent limitations limitations are the same as specified in § 415.502. Pollution or pollutant property Average of Maximum for daily values [49 FR 33425, Aug. 22, 1984] any 1 day for 30 con- secutive days

Kg/kkg (or pounds per 1,000 Subpart AY—Potassium Iodide lb) of product Production Subcategory Oil and grease ...... 0 .0020 0 .0010 pH ...... (1) (1) § 415.510 Applicability; description of the potassium iodide production 1 Within the range 6.0 to 9.0. subcategory. Subpart AX—Potassium Chloride The provisions of this subpart are ap- plicable to discharges resulting from Production Subcategory the production of potassium iodide. § 415.500 Applicability; description of the potassium chloride production § 415.511 Specialized definitions. subcategory. For the purpose of this subpart: The provisions of this subpart are ap- (a) Except as provided below, the gen- plicable to discharges resulting from eral definitions, abbreviations and the production of potassium chloride methods of analysis set forth in part

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401 of this chapter shall apply to this methods of analysis set forth in part subpart. 401 of this chapter shall apply to this (b) The term product shall mean po- subpart. tassium iodide. (b) The term product shall mean silver nitrate. § 415.512 Effluent limitations guidelines representing the degree of ef- (c) The term process wastewater fluent reduction attainable by the means any water which, during manu- application of the best practicable facturing or processing, comes into di- control technology currently avail- rect contact with or results from the able (BPT). production or use of any raw material, Except as provided in 40 CFR 125.30 intermediate product, finished product, through 125.32, any existing point by-product, or waste product. The term source subject to this subpart must ‘‘process wastewater’’ does not include achieve the following effluent limita- contaminated non-process wastewater, tions representing the degree of efflu- as defined below. ent reduction attainable by the appli- (d) The term process wastewater pol- cation of the best practicable control lutants means pollutants present in technology currently available (BPT): process wastewater. SUBPART AY—POTASSIUM IODIDE (e) The term contaminated non-process wastewater shall mean any water BPT effluent limitations which, during manufacturing or proc- Average of essing, comes into incidental contact Pollutant or pollutant property Maximum for daily values any 1 day for 30 con- with any raw material, intermediate secutive days product, finished product, by-product or waste product by means of (1) rain- Kg/kkg (or pounds per 1,000 lb) of product fall runoff; (2) accidental spills; (3) accidental leaks caused by the failure of TSS ...... 0 .090 0.030 Sulfide ...... 0.015 0 .0050 process equipment, which are repaired Iron ...... 0 .015 0 .0050 within the shortest reasonable time Barium ...... 0.0090 0 .0030 not to exceed 24 hours after discovery; 1 1 pH ...... ( ) ( ) and (4) discharges from safety showers 1 Within the range 6.0 to 9.0. and related personal safety equipment: Provided, That all reasonable measures Subpart AZ—Potassium Per- have been taken (i) to prevent, reduce manganate Production Sub- and control such contact to the max- category [Reserved] imum extent feasible; and (ii) to mitigate the effects of such contact once it Subpart BA—Silver Nitrate has occurred. Production Subcategory § 415.532 Effluent limitations guide- § 415.530 Applicability; description of lines representing the degree of ef- the silver nitrate production sub- fluent reduction attainable by the category. application of the best practicable control technology currently avail- The provisions of this subpart are ap- able (BPT). plicable to discharges and to the intro- duction of pollutants into publicly Except as provided in 40 CFR 125.30 owned treatment works resulting from through 125.32, any existing point the production of silver nitrate. source subject to this subpart must achieve the following effluent limita- § 415.531 Specialized definitions. tions representing the degree of efflu- For the purpose of this subpart: ent reduction attainable by the appli- (a) Except as provided below, the gen- cation of the best practicable control eral definitions, abbreviations and technology currently available (BPT):

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SUBPART BA—SILVER NITRATE § 415.542 Effluent limitations guidelines representing the degree of ef- BPT limitations fluent reduction attainable by the application of the best practicable Pollutant or pollutant property Average of Maximum for daily values control technology currently avail- any 1 day for 30 con- secutive days able (BPT).

Kg/kkg (or pounds per 1,000 Except as provided in 40 CFR 125.30 lb) of product through 125.32, any existing point source subject to this subpart must Silver ...... 0.0090 0 .0030 achieve the following effluent limita- TSS ...... 0 .069 0.023 pH ...... (1) (1) tions representing the degree of effluent reduction attainable by the appli- 1 Within the range 6.0 to 9.0. cation of the best practicable control § 415.533 [Reserved] technology currently available (BPT):

§ 415.534 Pretreatment standards for SUBPART BB—SODIUM BISULFITE existing sources (PSES). BPT effluent limitations Except as provided in 40 CFR 403.7 Average of and 403.13, any existing source subject Pollutant or pollutant property Maximum for daily values to this subpart which introduces pol- any 1 day for 30 con- lutants into a publicly owned treat- secutive days ment works must comply with 40 CFR Kg/kkg (or pounds per 1,000 part 403 and achieve the following lb) of product pretreatment standards for existing sources (PSES): TSS ...... 0 .32 0 .080 COD ...... 3 .8 0 .95 Chromium (T) ...... 0 .0020 0 .00063 SUBPART BA—SILVER NITRATE Zinc (T) ...... 0 .0051 0 .0015 pH ...... (1) (1) PSES limitations 1 Within the range 6.0 to 9.0. Average of Pollution or pollutant property Maximum for daily values any 1 day for 30 con- § 415.543 Effluent limitations guide- secutive days lines representing the degree of ef- Milligram per liter (mg/l) fluent reduction attainable by the application of the best available Silver ...... 1.0 0.5 technology economically achievable (BAT). Subpart BB—Sodium Bisulfite Except as provided in 40 CFR 125.30 Production Subcategory through 125.32, any existing point source subject to this subpart must § 415.540 Applicability; description of achieve the following effluent limita- the sodium bisulfite production tions guidelines representing the de- subcategory. gree of effluent reduction attainable by This subpart applies to discharges to the application of the best available waters of the United States and intro- technology economically achievable duction of pollutants into publicly (BAT): The limitations on COD, Chro- owned treatment works resulting from mium(T), and Zinc(T) are the same as the production of sodium bisulfite. specified in § 415.542.

§ 415.541 Specialized definitions. § 415.544 [Reserved] For the purposes of this subpart: § 415.545 New source performance (a) Except as provided below, the gen- standards (NSPS). eral definitions, abbreviations and methods of analysis set forth in part Any new source subject to this sub- 401 of this chapter shall apply to this part must achieve the following new subpart. source performance standards (NSPS): (b) The term product means sodium The limitations are the same as speci- bisulfite. fied in § 415.542.

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§ 415.546 Pretreatment standards for § 415.551 Specialized definitions. new sources (PSNS). For the purpose of this subpart: Except as provided in 40 CFR 403.7, (a) Except as provided below, the gen- any new source subject to this subpart eral definitions, abbreviations and which introduces pollutants into a pub- methods of analysis set forth in part licly owned treatment works must 401 of this chapter shall apply to this comply with 40 CFR part 403 and subpart. achieve the following Pretreatment (b) The term process wastewater Standards for New Sources (PSNS): means any water which, during manufacturing or processing, comes into di- SUBPART BB—SODIUM BISULFITE rect contact with or results from the PSNS effluent limita- production or use of any raw material, tions intermediate product, finished product, Average of by-product, or waste product. The term Pollutant or pollutant property Maximum daily val- for any 1 ues for 30 ‘‘process wastewater’’ does not include day consecu- contaminated non-process wastewater, tive days as defined below. Milligrams per liter (c) The term process wastewater pollutants means pollutants present in proc- Chromium (T) ...... 1 .3 0 .42 ess wastewater. (d) The term contaminated non-process In cases where POTWs find it necessary wastewater shall mean any water to impose mass limitations, the fol- which, during manufacturing or proc- lowing equivalent mass limitations are essing, comes into incidental contact provided as an alternate: The limita- with any raw material, intermediate tions for Chromium (T) are the same as product, finished product, by-product specified in § 415.545. or waste product by means of (1) rain- [47 FR 55227, Dec. 8, 1982] fall runoff; (2) accidental spills; (3) accidental leaks caused by the failure of § 415.547 Effluent limitations guide- process equipment, which are repaired lines representing the degree of effluent reduction attainable by the within the shortest reasonable time application of the best conventional not to exceed 24 hours after discovery; pollutant control technology (BCT). and (4) discharges from safety showers and related personal safety equipment: Except as provided in 40 CFR 125.30 Provided, that all reasonable measures through 125.32 any existing point source subject to this subpart must have been taken (i) to prevent, reduce achieve the following effluent limita- and control, such contact to the max- tions representing the degree of efflu- imum extent feasible; and (ii) to miti- ent reduction attainable by the appli- gate the effects of such contact once it cation of the best conventional pollut- has occurred. ant control technology (BCT): The lim- § 415.552 Effluent limitations guide- itations are the same for TSS and pH lines representing the degree of ef- as specified in § 414.542. fluent reduction attainable by the application of the best practicable Subpart BC—Sodium Fluoride control techology currently avail- Production Subcategory able (BPT). Except as provided in 40 CFR 125.30 § 415.550 Applicability; description of through 125.32, any existing point the sodium fluoride production sub- source subject to this subpart must category. achieve the following effluent limita- The provisions of this subpart are ap- tions representing the degree of efflu- plicable to discharges and to the intro- ent reduction attainable by the appli- duction of pollutants into publicly cation of the best practicable control owned treatment works resulting from technology currently available (BPT): the production of sodium fluoride by There shall be no discharge of process the anhydrous neutralization process wastewater pollutants to navigable and by the silico fluoride process. waters.

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§ 415.553 [Reserved] Subpart BH—Stannic Oxide Production Subcategory § 415.554 Pretreatment standards for existing sources (PSES). § 415.600 Applicability; description of Except as provided in 40 CFR 403.7 the stannic oxide production sub- and 493.13, any existing source subject category. to this subpart which introduces pol- The provisions of this subpart are ap- lutants into a publicly owned treat- plicable to discharges resulting from ment works must comply with 40 CFR the production of stannic oxide by the part 403 and achieve the following reaction of tin metal with air or oxy- pretreatment standards for existing gen. sources (PSES): § 415.601 Specialized definitions. SUBPART BC—SODIUM FLUORIDE For the purpose of this subpart: PSES effluent limitations (a) Except as provided below, the gen- Average of eral definitions, abbreviations and Pollution or pollutant property Maximum daily values methods of analysis set forth in part for any 1 for 30 con- day secutive 401 of this chapter shall apply to this days subpart. Milligrams per liter (mg/l) (b) The term process wastewater means any water which, during manu- Fluoride ...... 50 25 facturing or processing, comes into di- rect contact with or results from the § 415.555 [Reserved] production or use of any raw material, intermediate product, finished product, § 415.556 Pretreatment standards for by-product, or waste product. The term new sources (PSNS). ‘‘process wastewater’’ does not include Except as provided in 40 CFR 403.7, contaminated nonprocess wastewater, any new source subject to this subpart as defined below. which introduces pollutants into a pub- (c) The term process wastewater pollut- licly owned treatment works must ants means pollutants present in proc- comply with 40 CFR part 403 and ess wastewater. achieve the following pretreatment (d) The term contaminated non-process standards for new sources (PSNS): The wastewater shall mean any water limitations are the same as specified in which, during manufacturing or proc- § 415.552. essing, comes into incidental contact [49 FR 33425, Aug. 22, 1984] with any raw material, intermediate product, finished product, byproduct or Subpart BD—Sodium Hydrosulfide waste product by means of (1) rainfall Production Subcategory [Re- runoff; (2) accidental spills; (3) accidental leaks caused by the failure of served] process equipment, which are repaired within the shortest reasonable time Subpart BE—Sodium Hydrosulfite not to exceed 24 hours after discovery; Production Subcategory [Re- and (4) discharges from safety showers served] and related personal safety equipment: Provided, that all reasonable measures Subpart BF—Sodium Silicofluoride have been taken (i) to prevent, reduce Production Subcategory [Re- and control such contact to the max- served] imum extent feasible; and (ii) to mitigate the effects of such contact once it Subpart BG—Sodium Thiosulfate has occurred. Production Subcategory [Re- served] 294

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§ 415.602 Effluent limitations guide- facturing or processing, comes into di- lines representing the degree of ef- rect contact with or results from the fluent reduction attainable by the production or use of any raw material, application of the best practicable intermediate product, finished product, control technology currently avail- by-product, or waste product. The term able (BPT). ‘‘process wastewater’’ does not include Except as provided in 40 CFR 125.30 contaminated non-process wastewater, through 125.32, any existing point as defined below. source subject to this subpart must (c) The term process wastewater pollut- achieve the following effluent limita- ants means pollutants present in proc- tions representing the degree of efflu- ess wastewater. ent reduction attainable by the appli- (d) The term contaminated non-process cation of the best practicable control wastewater shall mean any water technology currently available (BPT): which, during manufacturing or proc- There shall be no discharge of process essing, comes into incidental contact wastewater pollutants to navigable with any raw material, intermediate waters. product, finished product, by-product or waste product by means of (1) rain- §§ 415.603–415.605 [Reserved] fall runoff; (2) accidental spills; (3) accidental leaks caused by the failure of § 415.606 Pretreatment standards for process equipment, which are repaired new sources (PSNS). within the shortest reasonable time Except as provided in 40 CFR 403.7, not to exceed 24 hours after discovery; any new source subject to this subpart and (4) discharges from safety showers which introduces pollutants into a pub- and related personal safety equipment: licly owned treatment works must Provided, that all reasonable measures comply with 40 CFR part 403 and have been taken (i) to prevent, reduce achieve the following pretreatment and control such contact to the max- standards for new sources (PSNS): The imum extent feasible; and (ii) to miti- limitations are the same as specified in gate the effects of such contact once it § 415.602. has occurred. [49 FR 33425, Aug. 22, 1984] § 415.632 Effluent limitations guidelines representing the degree of ef- Subpart BI—Sulfur Dioxide Produc- fluent reduction attainable by the tion Subcategory [Reserved] application of the best practicable control technology currently avail- Subpart BJ—Zinc Oxide Produc- able (BPT). tion Subcategory [Reserved] Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must Subpart BK—Zinc Sulfate achieve the following effluent limita- Production Subcategory tions representing the degree of effluent reduction attainable by the appli- § 415.630 Applicability; description of the zinc sulfate production sub- cation of the best practicable control category. technology currently available (BPT): There shall be no discharge of process The provisions of this subpart are ap- wastewater pollutants to navigable plicable to discharges resulting from waters. the production of zinc sulfate. §§ 415.633–415.635 [Reserved] § 415.631 Specialized definitions. For the purpose of this subpart: § 415.636 Pretreatment standards for (a) Except as provided below, the gen- new sources (PSNS). eral definitions, abbreviations and Except as provided in 40 CFR 403.7, methods of analysis set forth in part any new source subject to this subpart 401 of this chapter shall apply to this which introduces pollutants into a pub- subpart. licly owned treatment works must (b) The term process wastewater comply with 40 CFR part 403 and means any water which, during manu- achieve the following pretreatment

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standards for new sources (PSNS): The cation of the best practicable control limitations are the same as specified in technology currently available (BPT). § 415.632. SUBPART BL—CADMIUM PIGMENTS [49 FR 33425, Aug. 22, 1984] BPT effluent limitations Subpart BL—Cadmium Pigments Average of Pollutant or pollutant property Maximum for daily values and Salts Production Subcategory any 1 day for 30 con- secutive days

SOURCE: 49 FR 33426, Aug. 22, 1984, unless Kg/kkg (or pounds per/1,000 otherwise noted. lb) of product

§ 415.640 Applicability; description of TSS ...... 2 .59 1 .57 the cadmium pigments and salts Cadmium (T) ...... 0 .078 0 .026 production subcategory. Selenium (T) ...... 0 .11 0 .037 Zinc (T) ...... 0 .017 0 .0092 The provisions of this subpart are ap- pH ...... (1) (1) plicable to discharges and to the intro- 1 Within the range 6.0 to 9.0. duction of pollutants into treatment works which are publicly owned result- (b) Except as provided in 40 CFR ing from the production of cadmium 125.30 through 125.32 any existing point pigments and salts including cadmium source subject to this subpart and pro- chloride, cadmium nitrate, and cad- ducing cadmium salts must achieve the mium sulfate salts. following effluent limitations representing the degree of effluent reduc- § 415.641 Specialized definitions. tion attainable by the application of the best practicable control technology For the purpose of this subpart: currently available (BPT): (a) Except as provided below, the gen- eral definitions, abbreviations, and SUBPART BL—CADMIUM SALTS methods of analysis set forth in part 401 of this chapter shall apply to this BPT effluent limitations subpart. Average of (b) The term product shall mean cad- Pollutant or pollutant property Maximum daily values for any 1 for 30 con- mium pigment or cadmium salt. day secutive (c) The term cadmium shall mean the days total cadmium present in the process Kg/kkg (or pounds per/ wastewater stream exiting the waste- 1,000 lb) of product water treatment system. TSS ...... 0.0016 0.001 (d) The term selenium shall mean the Cadmium (T) ...... 4.87 × 10¥5 1.62 × 10¥5 total selenium present in the process Selenium (T) ...... 7.0 × 10¥5 2.3 × 10¥5 wastewater stream exiting the waste- Zinc (T) ...... 1.04 × 10¥5 5.8 × 10¥6 water treatment system. pH ...... (1) (1) (e) The term zinc shall mean the 1 Within the range 6.0 to 9.0. total zinc present in the process wastewater stream exiting the wastewater § 415.643 Effluent limitations guide- treatment system. lines representing the degree of effluent reduction attainable by the § 415.642 Effluent limitations guide- application of the best available lines representing the degree of ef- technology economically achievable fluent reduction attainable by the (BAT). application of the best practicable (a) Except as provided in 40 CFR control technology currently avail- 125.30 through 125.32 any existing point able (BPT). source subject to this subpart and pro- (a) Except as provided in 40 CFR ducing cadmium pigments must 125.30 through 125.32 any existing point achieve the following effluent limita- source subject to this subpart and pro- tions representing the degree of efflu- ducing cadmium pigments must ent reduction attainable by the appli- achieve the following effluent limita- cation of the best available technology tions representing the degree of efflu- economically achievable (BAT): The ent reduction attainable by the appli- limitations for Cadmium (T), Selenium

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(T), and Zinc (T) are the same as speci- SUBPART BL—CADMIUM SALTS fied in § 415.642(a). (b) Except as provided in 40 CFR PSES effluent limitations 125.30 through 125.32 any existing point Average of Pollutant or pollutant property Maximum for daily values source subject to this subpart and pro- any 1 day for 30 con- ducing cadmium salts must achieve the secutive days following effluent limitations rep- Milligrams per liter (mg/l) resenting the degree of effluent reduction attainable by the application of Cadmium (T) ...... 0 .84 0 .28 Selenium (T) ...... 1 .1 0 .40 the best available technology economi- Zinc (T) ...... 0 .18 0.10 cally achievable (BAT): The limitations for cadmium (T), selenium (T), In cases where POTWs find it necessary and zinc (T) are the same as specified to impose mass limitations, the fol- in § 414.642(b). lowing equivalent mass limitations are provided as an alternate: The limita- § 415.644 Pretreatment standards for tions for cadmium (T), selenium (T), existing sources (PSES). and zinc (T) are the same as specified (a) Except as provided in 40 CFR 403.7 in § 415.642(b). and 403.13, any existing source subject to this subpart and producing cadmium § 415.645 New source performance standards (NSPS). pigments which introduces pollutants into a publicly owned treatment works (a) Any new source subject to this must comply with 40 CFR part 403 and subpart and producing cadmium pig- achieve the following pretreatment ments must achieve the following new standards for existing sources (PSES): source performance standards (NSPS): The limitations for pH, TSS, cadmium SUBPART BL—CADMIUM PIGMENTS (T), selenium (T), and zinc (T), are the same as specified in § 415.642(a). PSES effluent limitations (b) Any new source subject to this Average of subpart and producing cadmium salts Pollutant or pollutant property Maximum for daily values must achieve the following new source any 1 day for 30 con- secutive days performance standards (NSPS): The limitations for pH, TSS, cadmium (T), Milligrams per liter (mg/l) selenium (T), and zinc (T), are the same Cadmium (T) ...... 0 .84 0 .28 as specified in § 415.642(b). Selenium (T) ...... 1 .1 0 .40 Zinc (T) ...... 0 .18 0.10 § 415.646 Pretreatment standards for new sources (PSNS). In cases where POTWs find it necessary (a) Except as provided in 40 CFR to impose mass limitations, the fol- 403.7, any new source subject to this lowing equivalent mass limitations are subpart and producing cadmium pig- provided as an alternate: The limita- ments which introduces pollutants into tions for cadmium (T), selenium (T), a publicly owned treatment works and zinc (T) are the same as specified must comply with 40 CFR part 403 and achieve the following pretreatment in § 415.642(a). standards for new sources (PSNS): The (b) Except as provided in 40 CFR 403.7 limitations for cadmium (T), selenium and 403.13, any existing source subject (T), and zinc (T), are the same as speci- to this subpart and producing cadmium fied in § 415.644(a). salts which introduces pollutants into (b) Except as provided in 40 CFR a publicly owned treatment works 403.7, any new source subject to this must comply with 40 CFR part 403 and subpart and producing cadmium salts achieve the following pretreatment which introduces pollutants into a pub- standards for existing sources (PSES): licly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources (PSNS): The limitations for cadmium (T), selenium

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(T), and zinc (T) are the same as speci- (d) The term copper shall mean the fied in § 415.644(b). total copper present in the process wastewater stream exiting the waste- § 415.647 Effluent limitations guide- water treatment system. lines representing the degree of effluent reduction attainable by the (e) The term nickel shall mean the application of the best conventional total nickel present in the process pollutant control technology (BCT). wastewater stream exiting the waste- (a) Except as provided in 40 CFR water treatment system. 125.30 through 125.32 any existing point source subject to this subpart and pro- § 415.652 Effluent limitations guide- ducing cadmium pigments must lines representing the degree of effluent reduction attainable by the achieve the following effluent limita- application of the best practicable tions representing the degree of efflu- control technology currently avail- ent reduction attainable by the appli- able (BPT). cation of the best conventional pollutant control technology (BCT): The lim- Except as provided in 40 CFR 125.30 itations are the same for TSS and pH through 125.32 any existing point as specified in § 415.642(a). source subject to this subpart must (b) Except as provided in 40 CFR achieve the following effluent limita- 125.30 through 125.32 any existing point tions representing the degree of efflu- source subject to this subpart and pro- ent reduction attainable by the appli- ducing cadmium salts must achieve the cation of the best practicable control following effluent limitations rep- technology currently available (BPT): resenting the degree of effluent reduction attainable by the application of SUBPART BM—COBALT SALTS the best conventional pollutant control technology (BCT): The limitations are BPT effluent limitations the same for TSS and pH as specified in Average of Pollutant or pollutant property Maximum for daily values § 415.642(b). any 1 day for 30 con- secutive days

Subpart BM—Cobalt Salts Kg/kkg (or pounds per/1,000 Production Subcategory lb) of product

TSS ...... 0 .0023 0 .0014 SOURCE: 49 FR 33427, Aug. 22, 1984, unless Cobalt (T) ...... 0 .0003 0 .00012 otherwise noted. Copper (T) ...... 2 .7 × 10¥4 8 .3 × 10¥5 Nickel (T) ...... 2.7 × 10¥4 8 .3 × 10¥5 § 415.650 Applicability; description of pH ...... (1) (1) the cobalt salts production subcategory. 1 Within the range 6.0 to 9.0. The provisions of this subpart are ap- § 415.653 Effluent limitations guide- plicable to discharges and to the intro- lines representing the degree of ef- duction of pollutants into treatment fluent reduction attainable by the works which are publicly owned result- application of the best available ing from the production of cobalt salts. technology economically achievable (BAT). § 415.651 Specialized definitions. Except as provided in 40 CFR 125.30 For the purpose of this subpart: through 125.32, any existing point (a) Except as provided below, the gen- source subject to this subpart must eral definitions, abbreviations, and achieve the following effluent limita- methods of analysis set forth in part tions representing the degree of efflu- 401 of this chapter shall apply to this ent reduction attainable by the appli- subpart. cation of the best available technology (b) The term product shall mean co- economically achievable (BAT): The balt salts. limitations for cobalt (T), copper (T), (c) The term cobalt shall mean the and nickel (T), are the same as speci- total cobalt present in the process wastewater stream exiting the waste- fied in § 415.652. water treatment system.

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§ 415.654 Pretreatment standards for source subject to this subpart must existing sources (PSES). achieve the following effluent limita- Except as provided in 40 CFR 403.7 tions representing the degree of efflu- and 403.13, any existing source subject ent reduction attainable by the appli- to this subpart which introduces pol- cation of the best conventional pollut- lutants into a publicly owned treat- ant control technology (BCT): The lim- ment works must comply with 40 CFR itations are the same for TSS and pH part 403 and achieve the following as specified in § 415.652. pretreatment standards for existing sources (PSES): Subpart BN—Sodium Chlorate SUBPART BM—COBALT SALTS Production Subcategory

PSES effluent limitations SOURCE: 49 FR 33428, Aug. 22, 1984, unless Average of otherwise noted. Pollutant or pollutant property Maximum for daily values any 1 day for 30 con- secutive days § 415.660 Applicability; description of the sodium chlorate production Milligrams per liter (mg/l) subcategory. Cobalt (T) ...... 3 .6 1 .4 The provisions of this subpart are ap- Copper (T) ...... 3 .3 1 .0 Nickel (T) ...... 3.3 1.0 plicable to discharges and to the intro- duction of pollutants into treatment In cases where POTWs find it necessary works which are publicly owned result- to impose mass limitations, the fol- ing from the production of sodium lowing equivalent mass limitations are chlorate. provided as an alternate: The limitations for cobalt (T), copper (T), and § 415.661 Specialized definitions. nickel (T), are the same as specified in For the purpose of this subpart: § 415.652. (a) Except as provided below, the gen- § 415.655 New source performance eral definitions, abbreviations, and standards (NSPS). methods of analysis set forth in part 401 of this chapter shall apply to this Any new source subject to this subpart must achieve the following new subpart. source performance standards (NSPS): (b) The term product shall mean so- The limitations for pH, TSS, cobalt dium chlorate. (T), copper (T), and nickel (T) are the (c) The term chromium shall mean the same as specified in § 415.652. total chromium present in the process wastewater stream exiting the waste- § 415.656 Pretreatment standards for water treatment system. new sources (PSNS). (d) The term chlorine shall mean the Except as provided in 40 CFR 403.7, total residual chlorine present in the any new source subject to this subpart process wastewater stream exiting the which introduces pollutants into a pub- wastewater treatment system. licly owned treatment works must (e) The term antimony shall mean the comply with 40 CFR part 403 and total antimony present in the process achieve the following pretreatment wastewater stream exiting the waste- standards for new sources (PSNS): The water treatment system. limitations for cobalt (T), copper (T), and nickel (T), are the same as speci- § 415.662 Effluent limitations guide- fied in § 415.654. lines representing the degree of effluent reduction attainable by the § 415.657 Effluent limitations guide- application of the best practicable lines representing the degree of ef- control technology currently avail- fluent reduction attainable by the able (BPT). application of the best conventional pollutant control technology (BCT). (a) Except as provided in 40 CFR Except as provided in 40 CFR 125.30 125.30 through 125.32, any existing point through 125.32 any existing point source subject to this subpart must

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achieve the following effluent limita- § 415.664 Pretreatment standards for tions representing the degree of efflu- existing sources (PSES). [Reserved] ent reduction attainable by the application of the best practicable control § 415.665 New source performance technology currently available (BPT). standards (NSPS). Any new source subject to this sub- SUBPART BN—SODIUM CHLORATE part must achieve the following new source performance standards (NSPS): BPT effluent limitations

Average of SUBPART BN—SODIUM CHLORATE Pollutant or pollutant property Maximum for daily values any 1 day for 30 con- secutive days NSPS effluent limitations Average of Kg/kkg (or pounds per/1,000 Pollutant or pollutant property Maximum for daily values lb) of product any 1 day for 30 con- secutive days TSS ...... 0 .12 0 .068 Antimony (T) ...... 0 .0086 0 .0043 Kg/kkg (or pounds per/1,000 Chromium (T) ...... 0 .0027 0 .0014 lb) of product Chlorine (total residual) ...... 0 .0041 0 .0024 pH ...... (1) (1) TSS ...... 0 .076 0.046 Antimony (T) ...... 0 .0043 0 .0022 1 Within the range 6.0 to 9.0. Chromium (T) ...... 0 .0017 0 .00086 Chlorine (total residual) ...... 0 .0041 0 .0024 (b) [Reserved] pH ...... (1) (1)

[49 FR 33428, Aug. 22, 1984; 49 FR 37594, Sept. 1 Within the range 6.0 to 9.0. 25, 1984] § 415.666 Pretreatment standards for § 415.663 Effluent limitations guide- new sources (PSNS). lines representing the degree of effluent reduction attainable by the Except as provided in 40 CFR 403.7, application of the best available any new source subject to this subpart technology economically achievable which introduces pollutants into a pub- (BAT). licly owned treatment works must Except as provided in 40 CFR 125.30 comply with 40 CFR part 403 and through 125.32, any existing point achieve the following pretreatment source subject to this subpart must standards for new sources (PSNS): achieve the following effluent limita- SUBPART BN—SODIUM CHLORATE tions representing the degree of effluent reduction attainable by the appli- PSNS effluent limitations cation of the best available technology Average of economically achievable (BAT). Pollutant or pollutant property Maximum for daily values any 1 day for 30 con- secutive days SUBPART BN—SODIUM CHLORATE Milligrams per liter (mg/l) BAT effluent limitations Antimony (T) ...... 1 .6 0 .8 Average of Pollutant or pollutant property Maximum for daily values Chromium (T) ...... 0 .64 0 .32 any 1 day for 30 con- secutive days In cases where POTWs find it necessary Kg/kkg (or pounds per/1,000 to impose mass limitations, the fol- lb) of product lowing equivalent mass limitations are Antimony (T) ...... 0 .0043 0 .0022 provided as an alternate: The limita- Chromium (T) ...... 0 .0017 0 .00086 tions for antimony(T) and chro- Chlorine (total residual) ...... 0 .0041 0 .0024 mium(T) are the same as specified in § 415.663. [49 FR 33428, Aug. 22, 1984; 49 FR 37594, Sept. [49 FR 33428, Aug. 22, 1984; 49 FR 37594, Sept. 25, 1984] 25, 1984]

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§ 415.667 Effluent limitations guide- § 415.672 Effluent limitations guidelines representing the degree of ef- lines representing the degree of effluent reduction attainable by the fluent reduction attainable by the application of the best conventional application of the best practicable pollutant control technology (BCT). control technology currently available (BPT). Except as provided in 40 CFR 125.30 (a) Except as provided in 40 CFR through 125.32 any existing point 125.30 through 125.32 any existing point source subject to this subpart must source subject to this subpart must achieve the following effluent limita- achieve the following effluent limitations representing the degree of efflu- tions representing the degree of effluent reduction attainable by the appli- ent reduction attainable by the application of the best conventional pollut- cation of the best practicable control ant control technology (BCT): The lim- technology currently available (BPT). itations are the same for TSS and pH as specified in § 415.662. SUBPART BO—ZINC CHLORIDE

BPT effluent limitations Subpart BO—Zinc Chloride Average of Production Subcategory Pollutant or pollutant property Maximum for daily values any 1 day for 30 con- secutive days SOURCE: 49 FR 33428, Aug. 22, 1984, unless Milligrams per liter (mg/l) otherwise noted. TSS ...... 43 25 § 415.670 Applicability; description of Arsenic (T) ...... 3 .0 1 .0 the zinc chloride production sub- Zinc (T) ...... 11.4 3.8 Lead (T) ...... 1 .8 0 .6 category. pH ...... (1) (1) The provisions of this subpart are ap- 1 Within the range 6.0 to 10.0 plicable to discharges and to the intro- duction of pollutants into treatment [49 FR 33428, Aug. 22, 1984; 49 FR 37594, Sept. works which are publicly owned result- 25, 1984] ing from the production of zinc chlo- § 415.673 Effluent limitations guide- ride. lines representing the degree of effluent reduction attainable by the § 415.671 Specialized definitions. application of the best available technology economically achievable For the purpose of this subpart: (BAT). (a) Except as provided below, the gen- Except as provided in 40 CFR 125.30 eral definitions, abbreviations, and through 125.32 any existing point methods of analysis set forth in part source subject to this subpart must 401 of this chapter shall apply to this achieve the following effluent limita- subpart. tions representing the degree of efflu- (b) The term product shall mean zinc ent reduction attainable by the appli- chloride. cation of the best available technology (c) The term arsenic shall mean the economically achievable (BAT). total arsenic present in the process wastewater stream exiting the waste- SUBPART BO—ZINC CHLORIDE water treatment system. BAT effluent limitations (d) The term zinc shall mean the Pollutant or pollutant prop- Average of total zinc present in the process waste- erty Maximum for daily values water stream exiting the wastewater any 1 day for 30 con- treatment system. secutive days (e) The term lead shall mean the Milligrams per liter (mg/l) total lead present in the process waste- Arsenic (T) ...... 3 .0 1 .0 water stream exiting the wastewater Zinc (T) ...... 2 .3 0 .76 treatment system. Lead (T) ...... 0 .18 0 .048

[49 FR 33428, Aug. 22, 1984; 49 FR 37594, Sept. 25, 1984]

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§ 415.674 Pretreatment standards for and lead (T) are the same as specified existing sources (PSES). in § 415.674. Except as provided in 40 CFR 403.7 § 415.677 Effluent limitations guide- and 403.13, any existing source subject lines representing the degree of ef- to this subpart which introduces pol- fluent reduction attainable by the lutants into a publicly owned treat- application of the best conventional ment works must comply with 40 CFR pollutant control technology (BCT). part 403 and achieve the following Except as provided in 40 CFR 125.30 pretreatment standards for existing through 125.32 any existing point sources (PSES): source subject to this subpart must acheive the following effluent limita- SUBPART BO—ZINC CHLORIDE tions representing the degree of efflu- PSES effluent limitations ent reduction attainable by the application of the best conventional pollut- Pollutant or pollutant prop- Average of erty Maximum for daily values ant control technology (BCT): The lim- any 1 day for 30 con- itations are the same for TSS and pH secutive days as specified in § 415.672. Milligrams per liter (mg/l)

Arsenic (T) ...... 3 .0 1 .0 PART 416 [RESERVED] Zinc (T) ...... 2 .3 0 .76 Lead (T) ...... 0 .18 0 .048 PART 417—SOAP AND DETERGENT MANUFACTURING POINT [49 FR 33428, Aug. 22, 1984; 49 FR 37594, Sept. 25, 1984] SOURCE CATEGORY

§ 415.675 New source performance Subpart A—Soap Manufacturing by Batch standards (NSPS). Kettle Subcategory Any new source subject to this sub- Sec. part must achieve the following new 417.10 Applicability; description of the soap source performance standards (NSPS): manufacturing by batch kettle subcategory. SUBPART BO—ZINC CHLORIDE 417.11 Specialized definitions. 417.12 Effluent limitations guidelines rep- NSPS effluent limitations resenting the degree of effluent reduction Pollutant or pollutant prop- Average of attainable by the application of the best erty Maximum for daily values practicable control technology currently any 1 day for 30 con- secutive days available. 417.13 Effluent limitations guidelines rep- Milligrams per liter (mg/l) resenting the degree of effluent reduction attainable by the application of the best TSS ...... 28 17 available technology economically Arsenic (T) ...... 3 .0 1 .0. achievable. Zinc (T) ...... 2 .3 0 .76 Lead (T) ...... 0 .18 0 .048 417.14 Pretreatment standards for existing pH ...... (1) (1) sources. 417.15 Standards of performance for new 1 Within the range 6.0 to 10.0. sources. 417.16 Pretreatment standards for new [49 FR 33428, Aug. 22, 1984; 49 FR 37594, Sept. sources. 25, 1984] Subpart B—Fatty Acid Manufacturing by § 415.676 Pretreatment standards for new sources (PSNS). Fat Splitting Subcategory Except as provided in 40 CFR 403.7, 417.20 Applicability; description of the fatty any new source subject to this subpart acid manufacturing by fat splitting sub- which introduces pollutants into a pub- category. licly owned treatment works must 417.21 Specialized definitions. comply with 40 CFR part 403 and 417.22 Effluent limitations guidelines representing the degree of effluent reduction achieve the following pretreatment attainable by the application of the best standards for new sources (PSNS): The practicable control technology currently limitations for arsenic (T), zinc (T), available.

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