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Federal facility (Industrial Inorganic Chemicals), major discharger, Aiken, South Carolina. NPDES permit SC0000175 expired Nov 30, 2008; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | monthly average | ≤ 10 mg/L | all year | A01 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 20 mg/L | all year | A01 |
| pH | instantaneous minimum | ≥ 5 SU | all year | A01 |
| pH | instantaneous maximum | ≤ 8.5 SU | all year | A01 |
| Solids, total suspended | monthly average | ≤ 20 mg/L | all year | A01 |
| Solids, total suspended | daily maximum | ≤ 40 mg/L | all year | A01 |
| Oil and grease, hexane extr method | monthly average | ≤ 10 mg/L | all year | A01 |
| Oil and grease, hexane extr method | daily maximum | ≤ 15 mg/L | all year | A01 |
| Iron, total [as Fe] | monthly average | report only (mg/L) | all year | A01 |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | all year | A01 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | A01 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | A01 |
| %Eff 7D Chronic Statre D. Ambigua | quarterly average | report only (%) | all year | A01 |
| %Eff 7D Chronic Statre D. Ambigua | maximum | report only (%) | all year | A01 |
| %Mortality Static Renewal 7Day Chronic Daphnia Ambigua | quarterly average | report only (%) | all year | A01 |
| %Mortality Static Renewal 7Day Chronic Daphnia Ambigua | maximum | report only (%) | all year | A01 |
| %Repr 7D Chronic Statre D. Ambigua | quarterly average | report only (%) | all year | A01 |
| %Repr 7D Chronic Statre D. Ambigua | maximum | report only (%) | all year | A01 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 10 mg/L | all year | A11 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 20 mg/L | all year | A11 |
| pH | instantaneous minimum | ≥ 5.5 SU | all year | A11 |
| pH | instantaneous maximum | ≤ 8.5 SU | all year | A11 |
| Solids, total suspended | monthly average | ≤ 20 mg/L | all year | A11 |
| Solids, total suspended | daily maximum | ≤ 40 mg/L | all year | A11 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | A11 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | A11 |
| Mercury, total [as Hg] | monthly average | ≤ .051 ug/L | all year | A11 |
| Mercury, total [as Hg] | daily maximum | ≤ .14 ug/L | all year | A11 |
| %Eff 7D Chronic Statre D. Ambigua | quarterly average | report only (%) | all year | A11 |
| %Eff 7D Chronic Statre D. Ambigua | maximum | report only (%) | all year | A11 |
| %Mortality Static Renewal 7Day Chronic Daphnia Ambigua | quarterly average | report only (%) | all year | A11 |
| %Mortality Static Renewal 7Day Chronic Daphnia Ambigua | maximum | report only (%) | all year | A11 |
| %Repr 7D Chronic Statre D. Ambigua | quarterly average | report only (%) | all year | A11 |
| %Repr 7D Chronic Statre D. Ambigua | maximum | report only (%) | all year | A11 |
| Tetrachloroethylene | monthly average | ≤ 5 ug/L | all year | A1A |
| Tetrachloroethylene | daily maximum | ≤ 10 ug/L | all year | A1A |
| Trichloroethylene | monthly average | ≤ 5 ug/L | all year | A1A |
| Trichloroethylene | daily maximum | ≤ 10 ug/L | all year | A1A |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | A1A |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | A1A |
| Oxygen, dissolved [DO] | instantaneous minimum | ≥ 1 mg/L | all year | D1A |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | all year | D1A |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 45 mg/L | all year | D1A |
| pH | instantaneous minimum | ≥ 6 SU | all year | D1A |
| pH | instantaneous maximum | ≤ 9 SU | all year | D1A |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | D1A |
| Solids, total suspended | weekly average | ≤ 45 mg/L | all year | D1A |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | D1A |
| Flow, in conduit or thru treatment plant | daily maximum | ≤ .023 MGD | all year | D1A |
| Coliform, fecal general | 30-day geometric mean | ≤ 200 #/100mL | all year | D1A |
| Coliform, fecal general | daily maximum | ≤ 400 #/100mL | all year | D1A |
| pH | instantaneous minimum | ≥ 4.8 SU | all year | F01 |
| pH | instantaneous maximum | ≤ 8.5 SU | all year | F01 |
| Solids, total suspended | monthly average | ≤ 20 mg/L | all year | F01 |
| Solids, total suspended | daily maximum | ≤ 40 mg/L | all year | F01 |
| Copper, total [as Cu] | monthly average | ≤ .006 mg/L | all year | F01 |
| Copper, total [as Cu] | daily maximum | ≤ .007 mg/L | all year | F01 |
| Zinc, total [as Zn] | daily maximum | ≤ .08 mg/L | all year | F01 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | F01 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | F01 |
| pH | instantaneous minimum | ≥ 4.8 SU | all year | F02 |
| pH | instantaneous maximum | ≤ 8.5 SU | all year | F02 |
| Copper, total [as Cu] | daily maximum | ≤ .007 mg/L | all year | F02 |
| Zinc, total [as Zn] | daily maximum | ≤ .07 mg/L | all year | F02 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | F02 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | F02 |
| pH | instantaneous minimum | ≥ 4.8 SU | all year | F05 |
| pH | instantaneous maximum | ≤ 8.5 SU | all year | F05 |
| Solids, total suspended | monthly average | ≤ 20 mg/L | all year | F05 |
| Solids, total suspended | daily maximum | ≤ 40 mg/L | all year | F05 |
| Copper, total [as Cu] | monthly average | ≤ .007 mg/L | all year | F05 |
| Copper, total [as Cu] | daily maximum | ≤ .008 mg/L | all year | F05 |
| Lead, total [as Pb] | monthly average | ≤ .00083 mg/L | all year | F05 |
| Lead, total [as Pb] | daily maximum | ≤ .02 mg/L | all year | F05 |
| Zinc, total [as Zn] | daily maximum | ≤ .09 mg/L | all year | F05 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | F05 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | F05 |
| Mercury, total [as Hg] | monthly average | ≤ .051 ug/L | all year | F05 |
| Mercury, total [as Hg] | daily maximum | ≤ .07 ug/L | all year | F05 |
| pH | instantaneous minimum | ≥ 4.6 SU | all year | F08 |
| pH | instantaneous maximum | ≤ 8.5 SU | all year | F08 |
| Lead, total [as Pb] | monthly average | ≤ .005 mg/L | all year | F08 |
| Lead, total [as Pb] | daily maximum | ≤ .129 mg/L | all year | F08 |
| Zinc, total [as Zn] | monthly average | ≤ .573 mg/L | all year | F08 |
| Zinc, total [as Zn] | daily maximum | ≤ .573 mg/L | all year | F08 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | F08 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | F08 |
| Oxygen, dissolved [DO] | instantaneous minimum | ≥ 5 mg/L | all year | G10 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | all year | G10 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 45 mg/L | all year | G10 |
| pH | instantaneous minimum | ≥ 6 SU | all year | G10 |
| pH | instantaneous maximum | ≤ 8.5 SU | all year | G10 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | G10 |
| Solids, total suspended | daily maximum | ≤ 45 mg/L | all year | G10 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 3.6 mg/L | Mar–Oct | G10 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 6.8 mg/L | Jan, Feb, Nov, Dec | G10 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 7.2 mg/L | Mar–Oct | G10 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 13.6 mg/L | Jan, Feb, Nov, Dec | G10 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | G10 |
| Flow, in conduit or thru treatment plant | daily maximum | ≤ 1.05 MGD | all year | G10 |
| Coliform, fecal general | 30-day geometric mean | ≤ 200 #/100mL | all year | G10 |
| Coliform, fecal general | daily maximum | ≤ 400 #/100mL | all year | G10 |
| %Eff 7D Chronic Statre D. Ambigua | quarterly average | report only (%) | all year | G10 |
| %Eff 7D Chronic Statre D. Ambigua | maximum | report only (%) | all year | G10 |
| %Mortality Static Renewal 7Day Chronic Daphnia Ambigua | quarterly average | report only (%) | all year | G10 |
| %Mortality Static Renewal 7Day Chronic Daphnia Ambigua | maximum | report only (%) | all year | G10 |
| %Repr 7D Chronic Statre D. Ambigua | quarterly average | report only (%) | all year | G10 |
| %Repr 7D Chronic Statre D. Ambigua | maximum | report only (%) | all year | G10 |
| pH | instantaneous minimum | ≥ 6 SU | all year | H02 |
| pH | instantaneous maximum | ≤ 8.5 SU | all year | H02 |
| Copper, total [as Cu] | monthly average | ≤ .032 mg/L | all year | H02 |
| Copper, total [as Cu] | daily maximum | ≤ .042 mg/L | all year | H02 |
| Lead, total [as Pb] | monthly average | report only (mg/L) | all year | H02 |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | all year | H02 |
| Zinc, total [as Zn] | monthly average | ≤ .11 mg/L | all year | H02 |
| Zinc, total [as Zn] | daily maximum | ≤ .11 mg/L | all year | H02 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | H02 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | H02 |
| pH | instantaneous minimum | ≥ 4.8 SU | all year | H07 |
| pH | instantaneous maximum | ≤ 8.5 SU | all year | H07 |
| Solids, total suspended | daily maximum | ≤ 40 mg/L | all year | H07 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | H07 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | H07 |
| pH | instantaneous minimum | ≥ 4.8 SU | all year | H12 |
| pH | instantaneous maximum | ≤ 8.5 SU | all year | H12 |
| Copper, total [as Cu] | monthly average | ≤ .025 mg/L | all year | H12 |
| Copper, total [as Cu] | daily maximum | ≤ .035 mg/L | all year | H12 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | all year | H12 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | H12 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | H12 |
| pH | instantaneous minimum | ≥ 6 SU | all year | K06 |
| pH | instantaneous maximum | ≤ 8.5 SU | all year | K06 |
| Copper, total [as Cu] | monthly average | ≤ .006 mg/L | all year | K06 |
| Copper, total [as Cu] | daily maximum | ≤ .008 mg/L | all year | K06 |
| Lead, total [as Pb] | monthly average | ≤ .00083 mg/L | all year | K06 |
| Lead, total [as Pb] | daily maximum | ≤ .02 mg/L | all year | K06 |
| Zinc, total [as Zn] | daily maximum | ≤ .092 mg/L | all year | K06 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | K06 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | K06 |
| Mercury, total [as Hg] | monthly average | report only (ug/L) | all year | K06 |
| Mercury, total [as Hg] | daily maximum | report only (ug/L) | all year | K06 |
| Oxygen, dissolved [DO] | instantaneous minimum | ≥ 1 mg/L | all year | K12 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | all year | K12 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 45 mg/L | all year | K12 |
| pH | instantaneous minimum | ≥ 6 SU | all year | K12 |
| pH | instantaneous maximum | ≤ 9 SU | all year | K12 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | K12 |
| Solids, total suspended | weekly average | ≤ 45 mg/L | all year | K12 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | K12 |
| Flow, in conduit or thru treatment plant | daily maximum | ≤ .024 MGD | all year | K12 |
| Coliform, fecal general | 30-day geometric mean | ≤ 200 #/100mL | all year | K12 |
| Coliform, fecal general | daily maximum | ≤ 400 #/100mL | all year | K12 |
| pH | instantaneous minimum | ≥ 6 SU | all year | K18 |
| pH | instantaneous maximum | ≤ 8.5 SU | all year | K18 |
| Solids, total suspended | daily maximum | ≤ 60 mg/L | all year | K18 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | K18 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | K18 |
| pH | instantaneous minimum | ≥ 6 SU | all year | L07 |
| pH | instantaneous maximum | ≤ 8.5 SU | all year | L07 |
| Solids, total suspended | monthly average | ≤ 20 mg/L | all year | L07 |
| Solids, total suspended | daily maximum | ≤ 40 mg/L | all year | L07 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | L07 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | L07 |
| Oxygen, dissolved [DO] | instantaneous minimum | ≥ 1 mg/L | all year | L7A |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | all year | L7A |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 45 mg/L | all year | L7A |
| pH | instantaneous minimum | ≥ 6 SU | all year | L7A |
| pH | instantaneous maximum | ≤ 9 SU | all year | L7A |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | L7A |
| Solids, total suspended | weekly average | ≤ 45 mg/L | all year | L7A |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | L7A |
| Flow, in conduit or thru treatment plant | daily maximum | ≤ .035 MGD | all year | L7A |
| Coliform, fecal general | 30-day geometric mean | ≤ 200 #/100mL | all year | L7A |
| Coliform, fecal general | daily maximum | ≤ 400 #/100mL | all year | L7A |
| Tetrachloroethylene | monthly average | ≤ 5 ug/L | all year | M05 |
| Tetrachloroethylene | daily maximum | ≤ 10 ug/L | all year | M05 |
| Trichloroethylene | monthly average | ≤ 5 ug/L | all year | M05 |
| Trichloroethylene | daily maximum | ≤ 10 ug/L | all year | M05 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | M05 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | M05 |
| pH | instantaneous minimum | ≥ 6 SU | all year | S04 |
| pH | instantaneous maximum | ≤ 8.5 SU | all year | S04 |
| Copper, total [as Cu] | monthly average | ≤ .006 mg/L | all year | S04 |
| Copper, total [as Cu] | daily maximum | ≤ .008 mg/L | all year | S04 |
| Lead, total [as Pb] | monthly average | ≤ .00083 mg/L | all year | S04 |
| Lead, total [as Pb] | daily maximum | ≤ .02 mg/L | all year | S04 |
| Manganese, total [as Mn] | monthly average | ≤ .1 mg/L | all year | S04 |
| Manganese, total [as Mn] | daily maximum | ≤ .15 mg/L | all year | S04 |
| Nickel, total [as Ni] | monthly average | ≤ .03 mg/L | all year | S04 |
| Nickel, total [as Ni] | daily maximum | ≤ .2 mg/L | all year | S04 |
| Zinc, total [as Zn] | daily maximum | ≤ .1 mg/L | all year | S04 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | S04 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | S04 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 20 mg/L | all year | TH1 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 40 mg/L | all year | TH1 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 17.6 lb/d | all year | TH1 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 35.3 lb/d | all year | TH1 |
| pH | instantaneous minimum | ≥ 6 SU | all year | TH1 |
| pH | instantaneous maximum | ≤ 8.5 SU | all year | TH1 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | TH1 |
| Solids, total suspended | daily maximum | ≤ 60 mg/L | all year | TH1 |
| Solids, total suspended | monthly average | ≤ 26.5 lb/d | all year | TH1 |
| Solids, total suspended | daily maximum | ≤ 53 lb/d | all year | TH1 |
| Cadmium, total [as Cd] | monthly average | ≤ .26 mg/L | all year | TH1 |
| Cadmium, total [as Cd] | daily maximum | ≤ .69 mg/L | all year | TH1 |
| Cadmium, total [as Cd] | monthly average | ≤ .23 lb/d | all year | TH1 |
| Cadmium, total [as Cd] | daily maximum | ≤ .61 lb/d | all year | TH1 |
| Chromium, total [as Cr] | monthly average | ≤ 1.71 mg/L | all year | TH1 |
| Chromium, total [as Cr] | daily maximum | ≤ 2.77 mg/L | all year | TH1 |
| Chromium, total [as Cr] | monthly average | ≤ 1.51 lb/d | all year | TH1 |
| Chromium, total [as Cr] | daily maximum | ≤ 2.44 lb/d | all year | TH1 |
| Copper, total [as Cu] | monthly average | ≤ 1.46 mg/L | all year | TH1 |
| Copper, total [as Cu] | daily maximum | ≤ 2.07 mg/L | all year | TH1 |
| Copper, total [as Cu] | monthly average | ≤ 1.29 lb/d | all year | TH1 |
| Copper, total [as Cu] | daily maximum | ≤ 1.83 lb/d | all year | TH1 |
| Lead, total [as Pb] | monthly average | ≤ .29 mg/L | all year | TH1 |
| Lead, total [as Pb] | daily maximum | ≤ .58 mg/L | all year | TH1 |
| Lead, total [as Pb] | monthly average | ≤ .26 lb/d | all year | TH1 |
| Lead, total [as Pb] | daily maximum | ≤ .51 lb/d | all year | TH1 |
| Nickel, total [as Ni] | monthly average | ≤ 2.38 mg/L | all year | TH1 |
| Nickel, total [as Ni] | daily maximum | ≤ 3.98 mg/L | all year | TH1 |
| Nickel, total [as Ni] | monthly average | ≤ 2.1 lb/d | all year | TH1 |
| Nickel, total [as Ni] | daily maximum | ≤ 3.51 lb/d | all year | TH1 |
| Silver, total [as Ag] | monthly average | ≤ .24 mg/L | all year | TH1 |
| Silver, total [as Ag] | daily maximum | ≤ .43 mg/L | all year | TH1 |
| Silver, total [as Ag] | monthly average | ≤ .21 lb/d | all year | TH1 |
| Silver, total [as Ag] | daily maximum | ≤ .38 lb/d | all year | TH1 |
| Zinc, total [as Zn] | monthly average | ≤ 1.48 mg/L | all year | TH1 |
| Zinc, total [as Zn] | daily maximum | ≤ 2.61 mg/L | all year | TH1 |
| Zinc, total [as Zn] | monthly average | ≤ 1.31 lb/d | all year | TH1 |
| Zinc, total [as Zn] | daily maximum | ≤ 2.3 lb/d | all year | TH1 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | TH1 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | TH1 |
| Mercury, total [as Hg] | monthly average | ≤ .0023 mg/L | all year | TH1 |
| Mercury, total [as Hg] | daily maximum | ≤ .121 mg/L | all year | TH1 |
| Mercury, total [as Hg] | monthly average | ≤ .002 lb/d | all year | TH1 |
| Mercury, total [as Hg] | daily maximum | ≤ .11 lb/d | all year | TH1 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 20 mg/L | all year | TH2 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 40 mg/L | all year | TH2 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 52.9 lb/d | all year | TH2 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 105.8 lb/d | all year | TH2 |
| pH | instantaneous minimum | ≥ 6 SU | all year | TH2 |
| pH | instantaneous maximum | ≤ 8.5 SU | all year | TH2 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | TH2 |
| Solids, total suspended | daily maximum | ≤ 60 mg/L | all year | TH2 |
| Solids, total suspended | monthly average | ≤ 79.4 lb/d | all year | TH2 |
| Solids, total suspended | daily maximum | ≤ 158.8 lb/d | all year | TH2 |
| Cadmium, total [as Cd] | monthly average | ≤ .26 mg/L | all year | TH2 |
| Cadmium, total [as Cd] | daily maximum | ≤ .69 mg/L | all year | TH2 |
| Cadmium, total [as Cd] | monthly average | ≤ .69 lb/d | all year | TH2 |
| Cadmium, total [as Cd] | daily maximum | ≤ 1.83 lb/d | all year | TH2 |
| Chromium, total [as Cr] | monthly average | ≤ 1.71 mg/L | all year | TH2 |
| Chromium, total [as Cr] | daily maximum | ≤ 2.77 mg/L | all year | TH2 |
| Chromium, total [as Cr] | monthly average | ≤ 4.52 lb/d | all year | TH2 |
| Chromium, total [as Cr] | daily maximum | ≤ 7.33 lb/d | all year | TH2 |
| Copper, total [as Cu] | monthly average | ≤ 1.46 mg/L | all year | TH2 |
| Copper, total [as Cu] | daily maximum | ≤ 2.07 mg/L | all year | TH2 |
| Copper, total [as Cu] | monthly average | ≤ 3.86 lb/d | all year | TH2 |
| Copper, total [as Cu] | daily maximum | ≤ 5.48 lb/d | all year | TH2 |
| Lead, total [as Pb] | monthly average | ≤ .29 mg/L | all year | TH2 |
| Lead, total [as Pb] | daily maximum | ≤ .58 mg/L | all year | TH2 |
| Lead, total [as Pb] | monthly average | ≤ .77 lb/d | all year | TH2 |
| Lead, total [as Pb] | daily maximum | ≤ 1.53 lb/d | all year | TH2 |
| Nickel, total [as Ni] | monthly average | ≤ 2.38 mg/L | all year | TH2 |
| Nickel, total [as Ni] | daily maximum | ≤ 3.98 mg/L | all year | TH2 |
| Nickel, total [as Ni] | monthly average | ≤ 6.3 lb/d | all year | TH2 |
| Nickel, total [as Ni] | daily maximum | ≤ 10.5 lb/d | all year | TH2 |
| Silver, total [as Ag] | monthly average | ≤ .24 mg/L | all year | TH2 |
| Silver, total [as Ag] | daily maximum | ≤ .43 mg/L | all year | TH2 |
| Silver, total [as Ag] | monthly average | ≤ .64 lb/d | all year | TH2 |
| Silver, total [as Ag] | daily maximum | ≤ 1.14 lb/d | all year | TH2 |
| Zinc, total [as Zn] | monthly average | ≤ 1.48 mg/L | all year | TH2 |
| Zinc, total [as Zn] | daily maximum | ≤ 2.61 mg/L | all year | TH2 |
| Zinc, total [as Zn] | monthly average | ≤ 3.92 lb/d | all year | TH2 |
| Zinc, total [as Zn] | daily maximum | ≤ 6.91 lb/d | all year | TH2 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | TH2 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | TH2 |
| Mercury, total [as Hg] | monthly average | ≤ .0023 mg/L | all year | TH2 |
| Mercury, total [as Hg] | daily maximum | ≤ .121 mg/L | all year | TH2 |
| Mercury, total [as Hg] | monthly average | ≤ .006 lb/d | all year | TH2 |
| Mercury, total [as Hg] | daily maximum | ≤ .56 lb/d | all year | TH2 |
| Manganese, total [as Mn] | monthly average | report only (mg/L) | all year | X08 |
| Manganese, total [as Mn] | daily maximum | report only (mg/L) | all year | X08 |
| Tetrachloroethylene | monthly average | ≤ 5 ug/L | all year | X08 |
| Tetrachloroethylene | daily maximum | ≤ 10 ug/L | all year | X08 |
| Trichloroethylene | monthly average | ≤ 5 ug/L | all year | X08 |
| Trichloroethylene | daily maximum | ≤ 10 ug/L | all year | X08 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | X08 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | X08 |
Cited limits by parameter: South Carolina's rules and the federal ones.
Same industry: the 24 Chemicals and Allied Products permits in South Carolina.
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Your permit document is the final word. As JSON: /api/v1/permits/SC0000175 · MCP: https://passage-data.com/mcp