facility exceeds the annual evaporation, a volume of water equivalent to the difference between annual precipitation falling on the treatment facility and the drainage area contributing surface runoff to the treatment facility and annual evaporation may be discharged subject to the limitations set forth in paragraph (a) of this section. (e) The concentration of pollutants discharged in mine drainage from mines producing 5,000 metric tons (5,512 short tons) or more of molybdenum bearing ores per year shall not exceed: 20 .15 .5 .3 .001 05 (1) 1 Within the range 6.0 to 9.0. (c)(1) Except as provided in paragraph (c) of this section, there shall be no discharge of process wastewater to navigable water from mines and mills which employ dump, heap, in situ leach or vat leach processes for the extraction of copper from ores or ore waste materials. The Agency recognizes that the elimination of the discharge of pollutants to navigable waters may result in an increase in discharges of some pollutants to other media. The Agency has considered these impacts and has addressed them in the preamble published on December 3, 1982. (2) In the event that the annual precipitation falling on the treatment facility and the drainage area contributing surface runoff to the treatment facility exceeds the annual evaporation, a volume of water equivalent to the difference between annual precipitation falling on the treatment facility and the drainage area contributing surface runoff to the treatment facility and annual evaporation may be discharged subject to the limitations set forth in paragraph (a) of this section. (d)(1) Except as provided in paragraph (d) of this section, there shall be no discharge of process wastewater to navigable waters from mills which extract gold or silver by use of the cyanidation process. The Agency recognizes that the elimination of the discharge of pollutants to navigable waters may result in an increase in discharges of some pollutants to other media. The Agency has considered these impacts and has addressed them in the preamble published on December 3, 1982. (2) In the event that the annual precipitation falling on the treatment facility and the drainage area contributing surface runoff to the treatment TSS 30 0.30 0.15 Cd 10 1.5 0.75 .30 .15 0.6 0.3 1.0 .5 Hg 0.002 0.001 1.0 5 Cd 0.10 0.05 (") (1) Within the range 6.0 to 9.0 (b) The concentration of pollutants discharged from mills that use the (h) The concentration of pollutants froth-flotation process alone, or in condischarged from mills processing 5,000 junction with other processes, for the metric tons (5,512 short tons) or more beneficiation of copper, lead, zinc, gold, of molybdenum ores per year by froth silver, or molybdenum ores or any flotation methods shall not exceed: combination of these ores shall not exEffluent limitations ceed: Effluent limitations Average of Maximum for daily values any 1 day for 30 conMilligrams per liter secutive days TSS 30 Milligrams per liter .10 05 Cu 0.30 0.15 Zn 1.0 Zn .5 1.0 0.5 As 1.0 Pb .5 0.6 0.3 PH (') 0.002 0.001 Cd 0.10 0.05 Within the range 6.0 to 9.0. (c)(1) Except as provided in paragraph (47 FR 54609, Dec. 3, 1982, as amended at 53 FR 18788, May 24, 1988) (c) of this section, there shall be no dis charge of process wastewater to navi$ 440.103 Effluent limitations rep gable waters from mine areas and mills resenting the degree of effluent re- processes and areas that use dump, duction attainable by the applica- heap, in situ leach or vat-leach proction of the best available tech- esses to extract copper from ores or ore nology economically achievable waste materials. The Agency recog(BAT). nizes that the elimination of the disExcept as provided in subpart L of charge of pollutants to navigable wathis part and 40 CFR 125.30 through ters may result in an increase in dis125.32, any existing point source sub- charges of some pollutants to other ject to this subpart must achieve the media. The Agency has considered following effluent limitations rep- these impacts and has addressed them resenting the degree of effluent reduc- in the preamble published on December tion attainable by the application of 3, 1982. the best available technology economi- (2) In the event that the annual precally achievable (BAT): cipitation falling on the treatment fa(a) The concentration of pollutants cility and the drainage area contribdischarged in mine drainage from uting surface runoff to the treatment mines that produce copper, lead, zinc, facility exceeds the annual evapogold, silver, or molybdenum bearing ration, a volume of water equal to the ores or any combination of these ores difference between annual precipitafrom open-pit or underground oper- tion falling on the treatment facility ations other than placer deposits shall and the drainage area contributing surnot exceed: face runoff to the treatment facility and annual evaporation may be discharged subject to the limitations set forth in paragraph (a) of this section. (d)(1) Except as provided in paragraph (d) of this section, there shall be no discharge of process wastewater to navigable waters from mills that use the cyanidation process to extract gold or silver. The Agency recognizes that the elimination of the discharge of pollutants to navigable waters may result in an increase in discharges of some pollutants to other media. The Agency has considered these impacts and has addressed them in the preamble published on December 3, 1982. (2) In the event that the annual precipitation falling on the treatment facility and the drainage area contributing surface runoff to the treatment facility exceeds the annual evaporation, a volume of water equal to the difference between annual precipitation falling on the treatment facility and the drainage area contributing surface runoff to the treatment facility and annual evaporation may be discharged subject to the limitations set forth in paragraph (a) of this section. [47 FR 54609, Dec. 3, 1982, as amended at 53 FR 18788, May 24, 1988] source $ 440.104 New performance standards (NSPS). Except as provided in subpart L of this part any new source subject to this subsection must achieve the following NSPS representing the degree of effluent reduction attainable by the application of the best available demonstrated technology (BADT): (a) The concentration of pollutants discharged in mine drainage from mines that produce copper, lead, zinc, gold, silver, or molybdenum bearing ores or any combination of these ores from open-pit or underground operations other than placer deposits shall not exceed: Within the range 6.0 to 9.0. (b)(1) Except as provided in paragraph (b) of this section, there shall be no discharge of process wastewater to navigable waters from mills that use the froth-flotation process alone, or in conjunction with other processes, for the beneficiation of copper, lead, zinc, gold, silver, or molybdenum ores or any combination of these ores. The Agency recognizes that the elimination of the discharge of pollutants to navigable waters may result in an increase in discharges of some pollutants to other media. The Agency has considered these impacts and has addressed them in the preamble published on December 3, 1982. (2)(i) In the event that the annual precipitation falling on the treatment facility and the drainage area contributing surface runoff to the treatment facility exceeds the annual evaporation, a volume of water equal to the difference between annual precipitation falling on the treatment facility and the drainage area contributing surface runoff to the treatment facility and annual evaporation may be discharged subject to the limitations set forth in paragraph (a) of this section. (ii) In the event there is a build up of contaminants in the recycle water which significantly interferes with the ore recovery process and this interference can not be eliminated through appropriate treatment of the recycle water, the permitting authority may allow a discharge of process wastewater in an amount necessary to correct the interference problem after installation of appropriate treatment. This discharge shall be subject to the limitations of paragraph (a) of this section. The facility shall have the burden of demonstrating to the permitting authority that the discharge is necessary charged subject to the limitations set forth in paragraph (a) of this section. [47 FR 54609, Dec. 3, 1982, as amended at 53 FR 18788, May 24, 1988) EFFECTIVE DATE NOTE: Paragraph (b)(2)(ii) of $ 440.104, published at 47 FR 54609, Dec. 3, 1982, contains information collection and recordkeeping equirements and will not become effective until approval has been given by the Office of Management and Budget. $ 440.105 Effluent limitations rep resenting the degree of effluent reduction attainable by the applica. tion of the best conventional pollutant control technology (BCT). [Reserved] Subpart K-Platinum Ores Subcategory $ 440.110 Applicability; description of the platinum ore subcategory. The provisions of this subpart K are applicable to discharges from (a) mines that produce platinum ore and (b) mills that process platinum ore. to eliminate interference in the ore recovery process and that the interference could not be eliminated through appropriate treatment of the recycle water. (c)(1) Except as provided in paragraph (c) of this section, there shall be no discharge of process wastewater to navigable waters from mine areas and mills processes and areas that use dump, heap, in-situ leach or vat-leach processes to extract copper from ores or ore waste materials. The Agency recognizes that the elimination of the discharge of pollutants to navigable waters may result in an increase in discharges of some pollutants to other media. The Agency has considered these impacts and has addressed them in the preamble published on December 3, 1982. (2) In the event that the annual precipitation falling on the treatment facility and the drainage area contributing surface runoff to the treatment facility exceeds the annual evaporation, a volume of water equal to the difference between annual precipitation falling on the treatment facility and the drainage area contributing surface runoff to the treatment facility and annual evaporation may be discharged subject to the limitations set forth in paragraph (a) of this section. (d)(1) Except as provided in paragraph (d) of this section, there shall be no discharge of process wastewater to navigable waters from mills that use the cyanidation process to extract gold or silver. The Agency recognizes that the elimination of the discharge of pollutants to navigable waters may result in an increase in discharges of some pollutants to other media. The Agency has considered these impacts and has addressed them in the preamble published on December 3, 1982. (2) In the event that the annual precipitation falling on the treatment facility and the drainage area contributing surface runoff to the treatment facility exceeds the annual evaporation, a volume of water equal to the difference between annual precipitation falling on the treatment facility and the drainage area contributing surface runoff to the treatment facility and annual evaporation may be dis $ 440.111 [Reserved] $ 440.112 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT). (Reserved) $ 440.113 Effluent limitations rep resenting the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT). Except as provided in subpart L of this part and 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations resenting the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT): (a) The concentration of pollutants discharged in mine drainage from mines that produce platinum bearing ores from open-pit or underground operations other than placer deposits shall not exceed: rep and annual evaporation may be discharged subject to the limitations set forth in paragraph (a) of this section. (d)(1) Except as provided in paragraph (d) of this section, there shall be no discharge of process wastewater to navigable waters from mills that use the cyanidation process to extract gold or silver. The Agency recognizes that the elimination of the discharge of pollutants to navigable waters may result in an increase in discharges of some pollutants to other media. The Agency has considered these impacts and has addressed them in the preamble published on December 3, 1982. (2) In the event that the annual precipitation falling on the treatment facility and the drainage area contributing surface runoff to the treatment facility exceeds the annual evaporation, a volume of water equal to the difference between annual precipitation falling on the treatment facility and the drainage area contributing surface runoff to the treatment facility and annual evaporation may be discharged subject to the limitations set forth in paragraph (a) of this section. [47 FR 54609, Dec. 3. 1982, as amended at 53 FR 18788, May 24, 1988) source $ 440.104 New performance standards (NSPS). Except as provided in subpart L of this part any new source subject to this subsection must achieve the following NSPS representing the degree of effluent reduction attainable by the application of the best available demonstrated technology (BADT): (a) The concentration of pollutants discharged in mine drainage from mines that produce copper, lead, zinc, gold, silver, or molybdenum bearing ores or any combination of these ores from open-pit or underground operations other than placer deposits shall not exceed: 1 Within the range 6.0 to 9.0. (b)(1) Except as provided in paragraph (b) of this section, there shall be no discharge of process wastewater to navigable waters from mills that use the froth-flotation process alone, or in conjunction with other processes, for the beneficiation of copper, lead, zinc, gold, silver, or molybdenum ores or any combination of these ores. The Agency recognizes that the elimination of the discharge of pollutants to navigable waters may result in an increase in discharges of some pollutants to other media. The Agency has considered these impacts and has addressed them in the preamble published on December 3, 1982. (2)(i) In the event that the annual precipitation falling on the treatment facility and the drainage area contributing surface runoff to the treatment facility exceeds the annual evaporation, a volume of water equal to the difference between annual precipitation falling on the treatment facility and the drainage area contributing surface runoff to the treatment facility and annual evaporation may be discharged subject to the limitations set forth in paragraph (a) of this section. (ii) In the event there is a build up of contaminants in the recycle water which significantly interferes with the ore recovery process and this interference can not be eliminated through appropriate treatment of the recycle water, the permitting authority may allow a discharge of process wastewater in an amount necessary to correct the interference problem after installation of appropriate treatment. This discharge shall be subject to the limitations of paragraph (a) of this section. The facility shall have the burden of demonstrating to the permitting authority that the discharge is necessary |
