Any new source subject to this subpart must achieve the following new source performance standards (NSPS), except that non-continuous dischargers shall not be subject to the maximum day and maximum for monthly average mass (kg/1,000 kkg or lb/million lb of metal poured; kg/1,000 kkg or lb/million lb of sand reclaimed; kg/62.3 million Sm\3\ or lb/billion SCF of air scrubbed) effluent standards for copper, lead, zinc, total phenols, oil and grease, and TSS. For non-continuous dischargers, annual average mass standards and maximum day and maximum for monthly average concentration (mg/l) standards shall apply. Concentration standards and annual average mass standards shall only apply to non-continuous dischargers.
(a) Casting Cleaning Operations. (1) Applicable to plants that are casting primarily ductile or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year.
NSPS------------------------------------------------------------------------
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).................................. 0.0129 0.0071Lead (T).................................... 0.0237 0.0116Zinc (T).................................... 0.0437 0.0165Oil and grease.............................. 1.34 0.446TSS......................................... 0.67 0.536pH.......................................... (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times. ------------------------------------------------------------------------
Maximum for Annual
Maximum for monthly average
any 1 day average \1\------------------------------------------------------------------------
(mg/l) \2\ (mg/l) \2\Copper (T)........................... 0.29 0.16 0.0029Lead (T)............................. 0.53 0.26 0.0067Zinc (T)............................. 0.98 0.37 0.0116Oil and grease....................... 30 10 0.223TTS.................................. 15 12 0.116pH................................... (\3\) (\3\) (\3\)------------------------------------------------------------------------\1\ kg/1000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (5.33/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.
(2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year.
NSPS------------------------------------------------------------------------
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).................................. 0.0129 0.0071Lead (T).................................... 0.0353 0.0174Zinc (T).................................... 0.0656 0.025Oil and grease.............................. 1.34 0.446TSS......................................... 1.7 0.67pH.......................................... (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times. ------------------------------------------------------------------------
Maximum for Annual
Maximum for monthly average
any 1 day average \1\------------------------------------------------------------------------
(mg/l) \2\ (mg/l) \2\Copper (T)........................... 0.29 0.16 0.0029Lead (T)............................. 0.79 0.39 0.0098Zinc (T)............................. 1.47 0.56 0.0179Oil and grease....................... 30 10 0.223TTS.................................. 38 15 0.446pH................................... (\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 (5.35/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.
(b) Casting Quench Operations. (1) Applicable to plants that are casting primarily ductile or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year.
NSPS------------------------------------------------------------------------
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).................................. 0.0138 0.0076Lead (T).................................... 0.0252 0.0124Zinc (T).................................... 0.0466 0.0176Oil and grease.............................. 1.43 0.476TSS......................................... 0.713 0.571pH.......................................... (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times. ------------------------------------------------------------------------
Maximum for Annual
Maximum for monthly average
any 1 day average \1\------------------------------------------------------------------------
(mg/l) \2\ (mg/l) \2\Copper (T)........................... 0.29 0.16 0.0031Lead (T)............................. 0.53 0.26 0.0071Zinc (T)............................. 0.98 0.37 0.0124Oil and grease....................... 30 10 0.238TSS.................................. 15 12 0.124pH................................... (\3\) (\3\) (\3\)------------------------------------------------------------------------\1\ Kg/1000 kkg (pounds per million pounds) of metal poured.\2\ Within the range of 7.0 to 10.0 at all times.\3\ These concentrations must be multiplied by the ratio of (5.7/x)
where x is the actual normalized process wastewater flow (in gallons
per 1,000 pounds of metal poured) for a specific plant.
(2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year.
NSPS------------------------------------------------------------------------
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).................................. 0.0138 0.0076Lead (T).................................... 0.0376 0.0185Zinc (T).................................... 0.0699 0.0266Oil and grease.............................. 1.43 0.476TSS......................................... 1.81 0.713pH.......................................... (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times. ------------------------------------------------------------------------
Maximum for Annual
Maximum for monthly average
any 1 day average \1\------------------------------------------------------------------------
(mg/l) \2\ (mg/l) \2\Copper (T)........................... 0.29 0.16 0.0031Lead (T)............................. 0.79 0.39 0.0105Zinc (T)............................. 1.47 0.56 0.019Oil and grease....................... 30 10 0.238TSS.................................. 38 15 0.476pH................................... (\3\) (\3\) (\3\)------------------------------------------------------------------------\1\ Kg/1000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (5.7/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.
(c) Dust Collection Scrubber Operations. (1) Applicable to plants that are casting primarily ductible or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year.
NSPS------------------------------------------------------------------------
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)................................ 0.218 0.12Lead (T).................................. 0.398 0.195Zinc (T).................................. 0.736 0.278Total Phenols............................. 0.646 0.225Oil and grease............................ 22.5 7.51TSS....................................... 11.3 9.01pH........................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times. ------------------------------------------------------------------------
Maximum for Annual
Maximum for monthly average
any 1 day average \1\------------------------------------------------------------------------
(mg/l) \2\ (mg/l) \2\Copper (T)........................... 0.29 0.16 0.0488Lead (T)............................. 0.53 0.26 0.113Zinc (T)............................. 0.98 0.37 0.195Total phenols........................ 0.86 0.3 0.15Oil and grease....................... 30 10 3.76TSS.................................. 15 12 1.95pH................................... (\3\) (\3\) (\3\)------------------------------------------------------------------------\1\ kg/62.3 millions Sm\3\ (pound per billion SCF) of air scrubbed.\2\ Within the range of 7.0 to 10.0 at all times.\3\ These concentrations must be multiplied by the ratio of (0.09/x)
where x is the actual normalized process wastewater flow (in gallons
per 1,000 SCF of air scrubbed) for a specific plant.
(2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year.
NSPS------------------------------------------------------------------------
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)................................ 0.218 0.12Lead (T).................................. 0.593 0.293Zinc (T).................................. 1.1 0.421Total phenols............................. 0.656 0.225Oil and grease............................ 22.5 7.51TSS....................................... 28.5 11.3pH........................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times. ------------------------------------------------------------------------
Maximum for Annual
Maximum for monthly average
any 1 day average \1\------------------------------------------------------------------------
(mg/l) \2\ (mg/l) \2\Copper (T)........................... 0.29 0.16 0.0488Lead (T)............................. 0.79 0.39 0.165Zinc (T)............................. 1.47 0.56 0.3Total phenols........................ 0.86 0.3 0.15Oil and grease....................... 30 10 3.76TSS.................................. 38 15 7.51pH................................... (\3\) (\3\) (\3\)------------------------------------------------------------------------\1\ kg/62.3 millions Sm\3\ (pound per billion SCF) of air scrubbed.\2\ Within the range of 7.0 to 10.0 at all times.\3\ These concentrations must be multiplied by the ratio of (0.09/)
where is the actual normalized process wastewater flow (in gallons per
1,000 SCF of air scrubbed) for a specific plant.
(d) Grinding Scrubber Operations. No discharge of process wastewater pollutants to navigable waters.
(e) Investment Casting. (1) Applicable to plants that are casting primarily ductile or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year.
NSPS------------------------------------------------------------------------
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)................................ 3.19 1.76Lead (T).................................. 5.84 2.86Zinc (T).................................. 10.8 4.07Oil and grease............................ 330 110TSS....................................... 165 132pH........................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times. ------------------------------------------------------------------------
Maximum for Annual
Maximum for monthly average
any 1 day average \1\------------------------------------------------------------------------
(mg/l) \2\ (mg/l) \2\Copper (T)......................... 0.29 0.16 0.716Lead (T)........................... 0.53 0.26 1.65Zinc (T)........................... 0.98 0.37 2.86Oil and grease..................... 30 10 55.1TSS................................ 15 12 28.6pH................................. (\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 (1,320/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.
(2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year.
NSPS------------------------------------------------------------------------
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)................................ 3.19 1.76Lead (T).................................. 8.7 4.3Zinc (T).................................. 16.2 6.17Oil and grease............................ 330 110TSS....................................... 419 165pH........................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times. ------------------------------------------------------------------------
Maximum for Annual
Maximum for monthly average
any 1 day average \1\------------------------------------------------------------------------
(mg/l) \2\ (mg/l) \2\Copper (T)......................... 0.29 0.16 0.716Lead (T)........................... 0.79 0.39 2.42Zinc (T)........................... 1.47 0.56 4.41Oil and grease..................... 30 10 55.1TSS................................ 38 15 110pH................................. (\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 (1,320/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.
(f) Melting Furnace Scrubber Operations. (1) Applicable to plants that are casting primarily ductile or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year.
NSPS------------------------------------------------------------------------
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)................................ 1.02 0.561Lead (T).................................. 1.86 0.911Zinc (T).................................. 3.44 1.30Total phenols............................. 3.01 1.05Oil and grease............................ 105 35TSS....................................... 52.6 42.1pH........................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times. ------------------------------------------------------------------------
Maximum for
Maximum for monthly Annual
any 1 day average average------------------------------------------------------------------------
(mg/l) \2\ (mg/l) \2\Copper (T)......................... 0.29 0.16 0.228Lead (T)........................... 0.53 0.26 0.526Zinc (T)........................... 0.98 0.37 0.911Total phenols...................... 0.86 0.3 0.701Oil and grease..................... 30 10 17.5TSS................................ 15 12 9.11pH................................. (\3\) (\3\) (\3\)------------------------------------------------------------------------\1\ kg/62.3 million Sm \3\ (pounds per billion SCF) of air scrubbed.\2\ These concentrations must be multiplied by the ratio of (0.42/x)
where x is the actual normalized process wastewater flow (in gallons
per 1,000 SCF of air scrubbed) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.
(2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year.
NSPS------------------------------------------------------------------------
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)................................ 1.02 0.561Lead (T).................................. 2.77 1.37Zinc (T).................................. 5.15 1.96Total phenols............................. 3.01 1.05Oil and grease............................ 105 35TSS....................................... 133 52.6pH........................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times. ------------------------------------------------------------------------
Maximum for
Maximum for monthly Annual
any 1 day average average------------------------------------------------------------------------
(mg/l) \2\ (mg/l) \2\Copper (T)......................... 0.29 0.16 0.228Lead (T)........................... 0.79 0.39 0.771Zinc (T)........................... 1.47 0.56 1.4Total phenols...................... 0.38 0.3 0.701Oil and grease..................... 30 10 17.5TSS................................ 38 15 35pH................................. (\3\) (\3\) (\3\)------------------------------------------------------------------------\1\ kg/62.3 million Sm \3\ (pounds per billion SCF) of air scrubbed.\2\ These concentrations must be multiplied by the ratio of (0.42/x)
where x is the actual normalized process wastewater flow (in gallons
per 1,000 SCF of air scrubbed) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.
(g) Mold Cooling Operations. (1) Applicable to plants that are casting primarily ductile or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year.
NSPS------------------------------------------------------------------------
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).................................. 0.0428 0.0236Lead (T).................................... 0.0783 0.0384Zinc (T).................................... 0.0145 0.0546Oil and grease.............................. 4.43 1.48TSS......................................... 2.22 1.77pH.......................................... (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times. ------------------------------------------------------------------------
Maximum for Annual
Maximum for monthly average
any 1 day average \1\------------------------------------------------------------------------
(mg/l) \2\ (mg/l) \1\Copper (T)........................... 0.29 0.16 0.0096Lead (T)............................. 0.53 0.26 0.0222Zinc (T)............................. 0.98 0.37 0.0384Oil and grease....................... 30 10 0.738TSS.................................. 15 12 0.384pH................................... (\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 (17.7/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.
(2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year.
NSPS------------------------------------------------------------------------
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).................................. 0.0428 0.0236Lead (T).................................... 0.117 0.0576Zinc (T).................................... 0.217 0.0827Oil and grease.............................. 4.43 1.48TSS......................................... 5.61 2.22pH.......................................... (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times. ------------------------------------------------------------------------
Maxium for Annual
Maximum for monthly average
any 1 day average \1\------------------------------------------------------------------------
(mg/1) \2\ (mg/l) \2\Copper (T)........................... 0.29 0.16 0.0096Lead (T)............................. 0.79 0.39 0.0325Zinc (T)............................. 1.47 0.56 0.0591Oil and grease....................... 30 10 0.738TSS.................................. 38 15 1.48pH................................... (\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 (17.7/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.
(h) Slag Quench Operations. (1) Applicable to plants that are casting primarily ductile or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year.
NSPS------------------------------------------------------------------------
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).................................. 0.0527 0.0291Lead (T).................................... 0.0964 0.0473Zinc (T).................................... 0.178 0.0673Oil and grease.............................. 5.46 1.82TSS......................................... 2.73 2.18pH.......................................... (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times. ------------------------------------------------------------------------
Maximum for Annual
Maximum for monthly average
any 1 day average \1\------------------------------------------------------------------------
(mg/l) \2\ (mg/l) \2\Copper (T)........................... 0.29 0.16 0.0118Lead (T)............................. 0.53 0.26 0.0273Zinc (T)............................. 0.98 0.37 0.0473Oil and grease....................... 30 10 0.909TSS.................................. 15 12 0.473pH................................... (\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 (21.8/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.
(2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year.
NSPS------------------------------------------------------------------------
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).................................. 0.0527 0.0291Lead (T).................................... 0.144 0.0709Zinc (T).................................... 0.267 0.102Oil and grease.............................. 5.46 1.82TSS......................................... 6.91 2.73pH.......................................... (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times. ------------------------------------------------------------------------
Maximum for
Maximum for monthly Annual
any 1 day average average------------------------------------------------------------------------
(mg/l) \2\ (mg/1) \2\Copper (T)........................... 0.29 0.16 0.0118Lead (T)............................. 0.79 0.39 0.04Zinc (T)............................. 1.47 0.56 0.0728Oil and grease....................... 30 10 0.909TSS.................................. 38 15 1.82pH................................... (\3\) (\3\) (\3\)------------------------------------------------------------------------\1\ kg/1000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (21.8/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.
(i) Wet Sand Reclamation Operations. (1) Applicable to plants that are casting primarily ductile or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year.
NSPS------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
kg/1,000 kkg (pounds per
million pounds) of sand
reclaimed
-----------------------------Copper (T)................................ 0.217 0.12Lead (T).................................. 0.396 0.194Zinc (T).................................. 0.732 0.276Total phenols............................. 0.642 0.224Oil and grease............................ 22.4 7.47TSS....................................... 11.2 8.96pH........................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times. ------------------------------------------------------------------------
Maximum for Annual
Maximum for monthly average
any 1 day average \1\------------------------------------------------------------------------
(mg/l)\2\ (mg/l)\2\Copper (T)........................... 0.29 0.16 0.0485Lead (T)............................. 0.53 0.26 0.112Zinc (T)............................. 0.98 0.37 0.194Total phenols........................ 0.86 0.3 0.149Oil and grease....................... 30 10 3.73TSS.................................. 15 12 1.94pH................................... (\3\) (\3\) (\3\)------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of sand reclaimed.\2\ These concentrations must be multiplied by the ratio of (89.5/x)
where x is the actual normalized process wastewater flow (in gallons
per 1,000 pounds of sand reclaimed) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.
(2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year.
NSPS------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
kg/1,000 kkg (pounds per
million pounds) of sand
reclaimed
-----------------------------Copper (T)................................ 0.217 0.12Lead (T).................................. 0.59 0.291Zinc (T).................................. 1.1 0.418Total phenols............................. 0.642 0.224Oil and grease............................ 22.4 7.47TSS....................................... 28.4 11.2pH........................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to at all times. ------------------------------------------------------------------------
Maximum for Annual
Maximum for monthly average
any 1 day average \1\------------------------------------------------------------------------
(mg/l)\2\ (mg/l)\2\Copper (T)........................... 0.29 0.16 0.0485Lead (T)............................. 0.79 0.39 0.164Zinc (T)............................. 1.47 0.56 0.299Total phenols........................ 0.86 0.3 0.149Oil and grease....................... 30 10 3.73TSS.................................. 38 15 7.47pH................................... (\3\) (\3\) (\3\)------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of sand reclaimed.\2\ These concentrations must be multiplied by the ratio of (89.5/x)
where x is the actual normalized process wastewater flow (in gallons
per 1,000 pounds of sand reclaimed) 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 21761, June 16, 1986]