NPDES permit SC0040479 · Minor NON-POTW · effective, expires 2027-05-31 · EPA's file as of 2026-09-19
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Last period with anything received: 2026-07-31.
Reports are due about 29 days after each monitoring period ends (the most common figure among SC permits in EPA's filings — check your permit).
| Outfall | Parameter | Statistic | Limit | Months |
|---|---|---|---|---|
| 003 | pH | INST MIN | report only | all year |
| 003 | pH | INST MAX | report only | all year |
| 003 | Solids, total suspended | MO AVG | <= 20 mg/L | all year |
| 003 | Solids, total suspended | DAILY MX | <= 30 mg/L | all year |
| 003 | Cyanide, free-water plus wastewaters | MO AVG | <= 5.2 ug/L | all year |
| 003 | Cyanide, free-water plus wastewaters | DAILY MX | <= 22 ug/L | all year |
| 003 | Cyanide, total [as CN] | MO AVG | <= 140 ug/L | all year |
| 003 | Cyanide, total [as CN] | DAILY MX | <= 204 ug/L | all year |
| 003 | Sulfide, total [as S] | MO AVG | report only | all year |
| 003 | Sulfide, total [as S] | DAILY MX | report only | all year |
| 003 | Hardness, total [as CaCO3] | MO AVG | report only | all year |
| 003 | Hardness, total [as CaCO3] | DAILY MX | report only | all year |
| 003 | Cadmium, total [as Cd] | MO AVG | <= 4.6 ug/L | all year |
| 003 | Cadmium, total [as Cd] | DAILY MX | <= 12.3 ug/L | all year |
| 003 | Copper, total [as Cu] | MO AVG | <= 25.7 ug/L | all year |
| 003 | Copper, total [as Cu] | DAILY MX | <= 40 ug/L | all year |
| 003 | Lead, total [as Pb] | MO AVG | <= 14.8 ug/L | all year |
| 003 | Lead, total [as Pb] | DAILY MX | <= 378.7 ug/L | all year |
| 003 | Thallium, total [as Tl] | MO AVG | <= .47 ug/L | all year |
| 003 | Thallium, total [as Tl] | DAILY MX | <= 1.31 ug/L | all year |
| 003 | Zinc, total [as Zn] | MO AVG | <= 375 ug/L | all year |
| 003 | Zinc, total [as Zn] | DAILY MX | <= 375 ug/L | all year |
| 003 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 003 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 003 | Hydrogen sulfide, unionized | MO AVG | <= 2 ug/L | all year |
| 003 | Hydrogen sulfide, unionized | DAILY MX | <= 4 ug/L | all year |
| 003 | Mercury, total [as Hg] | MO AVG | <= 51 ng/L | all year |
| 003 | Mercury, total [as Hg] | DAILY MX | <= 168 ng/L | all year |
| 003 | Length of longest pH excursion | INST MAX | <= 60 min | all year |
| 003 | pH range excursions, monthly total accum | MO MAX | = 446 min | all year |
| 003 | LC50 Static 48Hr Acute Ceriodaphnia dubia | DAILY MN | report only | all year |
| 003 | %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia | MO AVG | <= 25 % | all year |
| 003 | %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia | DAILY MX | <= 40 % | all year |
| 003 | IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia | DAILY MN | report only | all year |
| 004 | pH | INST MIN | report only | all year |
| 004 | pH | INST MAX | report only | all year |
| 004 | Solids, total suspended | MO AVG | <= 20 mg/L | all year |
| 004 | Solids, total suspended | DAILY MX | <= 30 mg/L | all year |
| 004 | Cyanide, free-water plus wastewaters | MO AVG | <= 5.2 ug/L | all year |
| 004 | Cyanide, free-water plus wastewaters | DAILY MX | <= 22 ug/L | all year |
| 004 | Cyanide, total [as CN] | MO AVG | <= 140 ug/L | all year |
| 004 | Cyanide, total [as CN] | DAILY MX | <= 204 ug/L | all year |
| 004 | Sulfide, total [as S] | MO AVG | report only | all year |
| 004 | Sulfide, total [as S] | DAILY MX | report only | all year |
| 004 | Hardness, total [as CaCO3] | MO AVG | report only | all year |
| 004 | Hardness, total [as CaCO3] | DAILY MX | report only | all year |
| 004 | Cadmium, total [as Cd] | MO AVG | <= 4.6 ug/L | all year |
| 004 | Cadmium, total [as Cd] | DAILY MX | <= 12.3 ug/L | all year |
| 004 | Copper, total [as Cu] | MO AVG | <= 25.7 ug/L | all year |
| 004 | Copper, total [as Cu] | DAILY MX | <= 40 ug/L | all year |
| 004 | Lead, total [as Pb] | MO AVG | <= 14.8 ug/L | all year |
| 004 | Lead, total [as Pb] | DAILY MX | <= 378.7 ug/L | all year |
| 004 | Thallium, total [as Tl] | MO AVG | <= .47 ug/L | all year |
| 004 | Thallium, total [as Tl] | DAILY MX | <= 1.31 ug/L | all year |
| 004 | Zinc, total [as Zn] | MO AVG | <= 375 ug/L | all year |
| 004 | Zinc, total [as Zn] | DAILY MX | <= 375 ug/L | all year |
| 004 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 004 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 004 | Hydrogen sulfide, unionized | MO AVG | <= 2 ug/L | all year |
| 004 | Hydrogen sulfide, unionized | DAILY MX | <= 4 ug/L | all year |
| 004 | Mercury, total [as Hg] | MO AVG | <= 51 ng/L | all year |
| 004 | Mercury, total [as Hg] | DAILY MX | <= 168 ng/L | all year |
| 004 | Length of longest pH excursion | INST MAX | <= 60 min | all year |
| 004 | pH range excursions, monthly total accum | MO MAX | = 446 min | all year |
| 004 | LC50 Static 48Hr Acute Ceriodaphnia dubia | DAILY MN | report only | all year |
| 004 | %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia | MO AVG | <= 25 % | all year |
| 004 | %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia | DAILY MX | <= 40 % | all year |
| 004 | IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia | DAILY MN | report only | all year |
| 005 | pH | INST MIN | report only | all year |
| 005 | pH | INST MAX | report only | all year |
| 005 | Solids, total suspended | MO AVG | <= 20 mg/L | all year |
| 005 | Solids, total suspended | DAILY MX | <= 30 mg/L | all year |
| 005 | Cyanide, free-water plus wastewaters | MO AVG | <= 5.2 ug/L | all year |
| 005 | Cyanide, free-water plus wastewaters | DAILY MX | <= 22 ug/L | all year |
| 005 | Cyanide, total [as CN] | MO AVG | <= 140 ug/L | all year |
| 005 | Cyanide, total [as CN] | DAILY MX | <= 204 ug/L | all year |
| 005 | Sulfide, total [as S] | MO AVG | report only | all year |
| 005 | Sulfide, total [as S] | DAILY MX | report only | all year |
| 005 | Hardness, total [as CaCO3] | MO AVG | report only | all year |
| 005 | Hardness, total [as CaCO3] | DAILY MX | report only | all year |
| 005 | Cadmium, total [as Cd] | MO AVG | <= 4.6 ug/L | all year |
| 005 | Cadmium, total [as Cd] | DAILY MX | <= 12.3 ug/L | all year |
| 005 | Copper, total [as Cu] | MO AVG | <= 25.7 ug/L | all year |
| 005 | Copper, total [as Cu] | DAILY MX | <= 40 ug/L | all year |
| 005 | Lead, total [as Pb] | MO AVG | <= 14.8 ug/L | all year |
| 005 | Lead, total [as Pb] | DAILY MX | <= 378.7 ug/L | all year |
| 005 | Thallium, total [as Tl] | MO AVG | <= .47 ug/L | all year |
| 005 | Thallium, total [as Tl] | DAILY MX | <= 1.31 ug/L | all year |
| 005 | Zinc, total [as Zn] | MO AVG | <= 375 ug/L | all year |
| 005 | Zinc, total [as Zn] | DAILY MX | <= 375 ug/L | all year |
| 005 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 005 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 005 | Hydrogen sulfide, unionized | MO AVG | <= 2 ug/L | all year |
| 005 | Hydrogen sulfide, unionized | DAILY MX | <= 4 ug/L | all year |
| 005 | Mercury, total [as Hg] | MO AVG | <= 51 ng/L | all year |
| 005 | Mercury, total [as Hg] | DAILY MX | <= 168 ng/L | all year |
| 005 | Length of longest pH excursion | INST MAX | <= 60 min | all year |
| 005 | pH range excursions, monthly total accum | MO MAX | = 446 min | all year |
| 005 | LC50 Static 48Hr Acute Ceriodaphnia dubia | DAILY MN | report only | all year |
| 005 | %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia | MO AVG | <= 25 % | all year |
| 005 | %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia | DAILY MX | <= 40 % | all year |
| 005 | IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia | DAILY MN | report only | all year |
Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states