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Electronic Code of Federal Regulations

e-CFR data is current as of December 4, 2019

Title 40Chapter ISubchapter NPart 415 → Subpart BA


Title 40: Protection of Environment
PART 415—INORGANIC CHEMICALS MANUFACTURING POINT SOURCE CATEGORY


Subpart BA—Silver Nitrate Production Subcategory


Contents
§415.530   Applicability; description of the silver nitrate production subcategory.
§415.531   Specialized definitions.
§415.532   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).
§415.533   [Reserved]
§415.534   Pretreatment standards for existing sources (PSES).

§415.530   Applicability; description of the silver nitrate production subcategory.

The provisions of this subpart are applicable to discharges and to the introduction of pollutants into publicly owned treatment works resulting from the production of silver nitrate.

§415.531   Specialized definitions.

For the purpose of this subpart:

(a) Except as provided below, the general definitions, abbreviations and methods of analysis set forth in part 401 of this chapter shall apply to this subpart.

(b) The term product shall mean silver nitrate.

(c) The term process wastewater means any water which, during manufacturing or processing, comes into direct contact with or results from the production or use of any raw material, intermediate product, finished product, by-product, or waste product. The term “process wastewater” does not include contaminated non-process wastewater, as defined below.

(d) The term process wastewater pollutants means pollutants present in process wastewater.

(e) The term contaminated non-process wastewater shall mean any water which, during manufacturing or processing, comes into incidental contact 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: Provided, That all reasonable measures have been taken (i) to prevent, reduce and control such contact to the maximum extent feasible; and (ii) to mitigate the effects of such contact once it has occurred.

§415.532   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).

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

Subpart BA—Silver Nitrate

Pollutant or pollutant propertyBPT limitations
Maximum for any 1 dayAverage of daily values for 30 consecutive days
Kg/kkg (or pounds per 1,000 lb) of product
Silver0.00900.0030
TSS0.0690.023
pH(1)(1)

1Within the range 6.0 to 9.0.

§415.533   [Reserved]

§415.534   Pretreatment standards for existing sources (PSES).

Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for existing sources (PSES):

Subpart BA—Silver Nitrate

Pollution or pollutant propertyPSES limitations
Maximum for any 1 dayAverage of daily values for 30 consecutive days
Milligram per liter (mg/l)
Silver1.00.5

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