Loading (50 kb)...'
(continued) 10.0 at all times.
------------------------------------------------------------------------
Maximum for
Maximum for monthly Annual
any 1 day average average \1\
------------------------------------------------------------------------
(mg/l) \2\ (mg/l) \2\
Copper (T).................... 0.77 0.42 0.067
Lead (T)...................... 0.53 0.26 0.0591
Zinc (T)...................... 0.76 0.29 0.071
Oil and grease................ 30 10 1.97
TSS........................... 15 12 1.03
pH............................ (\3\) (\3\) (\3\)
------------------------------------------------------------------------
\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.
\2\ These concentrations must be multiplied by the ratio of (47.3/x)
where x is the actual normalized process wastewater flow (in gallons
per 1,000 pounds of metal poured) for a specific plant.
\3\ Within the range of 7.0 to 10.0 at all times.
[50 FR 45247, Oct. 30, 1985; 51 FR 21762, June 16, 1986]
§ 464.45 Pretreatment standards for existing sources.
top
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.
(a) Casting Quench Operations.
PSES
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
kg/1,000 kkg
(pounds per
million
pounds) of
metal poured
---------------------------
Copper (T).................................. 0.0344 0.0187
Lead (T).................................... 0.0237 0.0116
Zinc (T).................................... 0.0339 0.0129
TTO......................................... 0.093 0.0304
Oil and grease (for alternate monitoring)... 1.34 0.446
------------------------------------------------------------------------
(b) Die Casting Operations.
PSES
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
kg/1,000 kkg
(pounds per
million
pounds of
metal
poured)
--------------------------
Copper (T)................................... 0.0066 0.0036
Lead (T)..................................... 0.0046 0.0022
Zinc (T)..................................... 0.0066 0.0025
Total phenols................................ 0.0074 0.0026
TTO.......................................... 0.0196 0.0064
Oil and grease for alternate monitoring)..... 0.259 0.0864
------------------------------------------------------------------------
(c) Melting Furnace Scrubber Operations.
PSES
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
kg/62.3
million Sm
\3\ (pounds
per billion
SCF) of air
scrubbed
---------------------------
Copper (T).................................. 1.56 0.852
Lead (T).................................... 1.07 0.527
Zinc (T).................................... 1.54 0.588
Total phenols............................... 1.74 0.608
TTO......................................... 3.95 1.29
Oil and grease for alternate monitoring).... 60.8 20.3
------------------------------------------------------------------------
(d) Mold Cooling Operations.
PSES
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
kg/1,000 kkg
(pounds per
million
pounds) of
metal poured
---------------------------
Copper (T).................................. 0.304 0.166
Lead (T).................................... 0.209 0.103
Zinc (T).................................... 0.3 0.114
TTO......................................... 0.821 0.268
Oil and grease for alternate monitoring).... 11.8 3.94
------------------------------------------------------------------------
§ 464.46 Pretreatment standards for new sources.
top
Except as provided in 40 CFR 403.7, any new source subject to this subpart which introduces pollutants into publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources.
(a) Casting Quench Operations.
PSNS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
kg/1,000 kkg
(pounds per
million
pounds) of
metal poured
---------------------------
Copper (T).................................. 0.0344 0.0187
Lead (T).................................... 0.0237 0.0116
Zinc (T).................................... 0.0339 0.0129
TTO......................................... 0.093 0.0304
Oil and grease (for alternate monitoring)... 1.34 0.446
------------------------------------------------------------------------
(b) Die Casting Operations.
PSNS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
kg/1,000 kkg
(pounds per
million
pounds) of
metal poured
--------------------------
Copper (T)................................... 0.0066 0.0036
Lead (T)..................................... 0.0046 0.0022
Zinc (T)..................................... 0.0066 0.0025
Total phenols................................ 0.0074 0.0026
TTO.......................................... 0.0196 0.0064
Oil and grease (for alternate monitoring).... 0.259 0.0864
------------------------------------------------------------------------
(c) Melting Furnace Scrubber Operations.
PSNS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
kg/62.3
million Sm
\3\ (pounds
per billion
SCF) of air
scrubbed
---------------------------
Copper (T).................................. 1.56 0.852
Lead (T).................................... 1.07 0.527
Zinc (T).................................... 1.54 0.588
Total phenols............................... 1.74 0.608
TTO......................................... 3.95 1.29
Oil and grease (for alternate monitoring)... 60.8 20.3
------------------------------------------------------------------------
(d) Mold Cooling Operations.
PSNS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
kg/1,000 kkg
(pounds per
million
pounds) of
metal poured
---------------------------
Copper (T).................................. 0.304 0.166
Lead (T).................................... 0.209 0.103
Zinc (T).................................... 0.3 0.114
TTO......................................... 0.821 0.268
Oil and grease (for alternate monitoring)... 11.8 3.94
------------------------------------------------------------------------
[50 FR 45247, Oct. 30, 1985; 51 FR 21762, June 16, 1986]
§ 464.47 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology. [Reserved]