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Duke Energy Carolinas, LLC

Electric Services, major discharger, Belton, South Carolina. NPDES permit SC0002291 expired Mar 31, 2021; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 29 days after each period: outfall 001 form 1 monthly (10 values), outfall 001 form 2 quarterly (5 values), outfall 001 form 4 monthly (2 values), outfall 001 form 5 monthly (4 values), outfall 001 form 6 monthly (5 values), outfall 001 form 7 monthly (8 values), and 16 more forms
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 1 of 216 reports late

Limits in force (169)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitmonthly average≤ 96 deg FJul–Sep001
Temperature, water deg. fahrenheitmonthly average≤ 90 deg FJan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec001
Temperature, water deg. fahrenheitdaily maximum≤ 90 deg Fall year001
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year001
Temperature, water deg. fahrenheitdaily maximum≤ 10 deg FJan, Feb, Nov, Dec001
Temperature, water deg. fahrenheitdaily maximum≤ 5 deg FMar–Oct001
Oxygen demand, ultimatemonthly averagereport only (lb/d)all year001
Oxygen demand, ultimatemonthly averagereport only (lb/d)all year001
pHinstantaneous minimum≥ 6 SUall year001
pHinstantaneous minimum≥ 6 SUall year001
pHinstantaneous maximum≤ 8.5 SUall year001
pHinstantaneous maximum≤ 8.5 SUall year001
Solids, total suspendedmonthly averagereport only (mg/L)all year001
Solids, total suspendedmonthly averagereport only (mg/L)all year001
Solids, total suspendeddaily maximumreport only (mg/L)all year001
Solids, total suspendeddaily maximumreport only (mg/L)all year001
Copper, total [as Cu]monthly average= 38 ug/Lall year001
Copper, total [as Cu]monthly average≤ 38 ug/Lall year001
Copper, total [as Cu]daily maximum= 39 ug/Lall year001
Copper, total [as Cu]daily maximum≤ 39 ug/Lall year001
Lead, total [as Pb]monthly average≤ 5 ug/Lall year001
Lead, total [as Pb]daily maximum≤ 56 ug/Lall year001
Thallium, total [as Tl]monthly averagereport only (ug/L)all year001
Thallium, total [as Tl]daily maximumreport only (ug/L)all year001
Thallium, total [as Tl]daily maximumreport only (ug/L)all year001
Thallium, total [as Tl]monthly averagereport only (ug/L)all year001
Thallium, total [as Tl]daily maximumreport only (ug/L)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
LC50 Static 48Hr Acute Ceriodaphnia dubiadaily maximumreport only (%)all year001
%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly average≤ 25 %all year001
%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiadaily maximum≤ 40 %all year001
Pass/Fail Static 48Hr Acute Ceriodaphnia dubiadaily maximum≤ 0 pass=0;fail=1all year001
IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly averagereport only (%)all year001
Temperature, water deg. fahrenheitdaily maximum≤ 90 deg Fall year003
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year003
pHinstantaneous minimum≥ 6 SUall year003
pHinstantaneous maximum≤ 8.5 SUall year003
Solids, total suspendedmonthly averagereport only (mg/L)all year003
Solids, total suspendeddaily maximumreport only (mg/L)all year003
Copper, total [as Cu]monthly averagereport only (ug/L)all year003
Copper, total [as Cu]daily maximumreport only (ug/L)all year003
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year003
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year003
Number of Eventsdaily maximumreport only (#)all year003
Duration of dischargedaily maximumreport only (hr)all year003
pHinstantaneous minimum≥ 6 SUall year004
pHinstantaneous maximum≤ 9 SUall year004
Solids, total suspendedmonthly average≤ 30 mg/Lall year004
Solids, total suspendeddaily maximum≤ 100 mg/Lall year004
Oil & Greasemonthly average≤ 15 mg/Lall year004
Oil & Greasedaily maximum≤ 20 mg/Lall year004
Arsenic, total [as As]monthly averagereport only (mg/L)all year004
Arsenic, total [as As]daily maximumreport only (mg/L)all year004
Beryllium, total [as Be]monthly average≤ 330 ug/Lall year004
Beryllium, total [as Be]daily maximum≤ 660 ug/Lall year004
Cadmium, total [as Cd]monthly averagereport only (mg/L)all year004
Cadmium, total [as Cd]daily maximumreport only (mg/L)all year004
Chromium, total [as Cr]monthly averagereport only (mg/L)all year004
Chromium, total [as Cr]daily maximumreport only (mg/L)all year004
Copper, total [as Cu]monthly average≤ 1180 ug/Lall year004
Copper, total [as Cu]daily maximum≤ 1550 ug/Lall year004
Iron, total [as Fe]monthly averagereport only (mg/L)all year004
Iron, total [as Fe]daily maximumreport only (mg/L)all year004
Lead, total [as Pb]monthly average≤ 420 ug/Lall year004
Lead, total [as Pb]daily maximum≤ 11050 ug/Lall year004
Zinc, total [as Zn]monthly averagereport only (mg/L)all year004
Zinc, total [as Zn]daily maximumreport only (mg/L)all year004
Selenium, total [as Se]monthly averagereport only (mg/L)all year004
Selenium, total [as Se]daily maximumreport only (mg/L)all year004
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year004
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year004
Chlorine, total residualmonthly average≤ .5 mg/Lall year004
Chlorine, total residualdaily maximum≤ 1 mg/Lall year004
Solids, total dissolvedmonthly averagereport only (mg/L)all year004
Solids, total dissolveddaily maximumreport only (mg/L)all year004
Mercury, total [as Hg]monthly averagereport only (ng/L)all year004
Mercury, total [as Hg]daily maximumreport only (ng/L)all year004
LC50 Static 48Hr Acute Ceriodaphnia dubiadaily maximumreport only (%)all year004
Pass/Fail Static 48Hr Acute Ceriodaphnia dubiadaily maximum= 0 pass=0;fail=1all year004
pHinstantaneous minimum≥ 6 SUall year005
pHinstantaneous maximum≤ 8.5 SUall year005
Solids, total suspendedmonthly average≤ 30 mg/Lall year005
Solids, total suspendeddaily maximum≤ 100 mg/Lall year005
Oil & Greasemonthly average≤ 15 mg/Lall year005
Oil & Greasedaily maximum≤ 20 mg/Lall year005
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year005
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year005
pHinstantaneous minimum≥ 6 SUall year006
pHinstantaneous maximum≤ 8.5 SUall year006
Solids, total suspendedmonthly average≤ 30 mg/Lall year006
Solids, total suspendeddaily maximum≤ 100 mg/Lall year006
Oil & Greasemonthly average≤ 15 mg/Lall year006
Oil & Greasedaily maximum≤ 20 mg/Lall year006
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year006
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year006
pHinstantaneous minimum≥ 6 SUall year007
pHinstantaneous maximum≤ 8.5 SUall year007
Solids, total suspendedmonthly average≤ 30 mg/Lall year007
Solids, total suspendeddaily maximum≤ 100 mg/Lall year007
Oil & Greasemonthly average≤ 15 mg/Lall year007
Oil & Greasedaily maximum≤ 20 mg/Lall year007
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year007
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year007
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year008
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year008
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year008
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year008
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year008
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year008
pHinstantaneous minimum≥ 6 SUall year008
pHinstantaneous minimum≥ 6 SUall year008
pHinstantaneous maximum≤ 8.5 SUall year008
pHinstantaneous maximum≤ 8.5 SUall year008
Solids, total suspendedmonthly average≤ 30 mg/Lall year008
Solids, total suspendedmonthly average≤ 30 mg/Lall year008
Solids, total suspendeddaily maximum≤ 100 mg/Lall year008
Solids, total suspendeddaily maximum≤ 100 mg/Lall year008
Oil & Greasemonthly average≤ 15 mg/Lall year008
Oil & Greasemonthly average≤ 15 mg/Lall year008
Oil & Greasedaily maximum≤ 20 mg/Lall year008
Oil & Greasedaily maximum≤ 20 mg/Lall year008
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year008
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year008
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year008
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year008
LC50 Static 48Hr Acute Ceriodaphnia dubiadaily maximumreport only (%)all year008
%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly average≤ 25 %all year008
%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiadaily maximum≤ 40 %all year008
IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly averagereport only (%)all year008
pHinstantaneous minimum≥ 6 SUall year009
pHinstantaneous maximum≤ 8.5 SUall year009
Solids, total suspendedmonthly average≤ 30 mg/Lall year009
Solids, total suspendeddaily maximum≤ 100 mg/Lall year009
Oil & Greasemonthly average≤ 15 mg/Lall year009
Oil & Greasedaily maximum≤ 20 mg/Lall year009
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year009
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year009
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year01A
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year01A
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year01A
Chlorine, free availablemonthly average≤ .2 mg/Lall year01A
Chlorine, free availabledaily maximum≤ .5 mg/Lall year01A
pHinstantaneous minimum≥ 6 SUall year01B
pHinstantaneous maximum≤ 9 SUall year01B
Solids, total suspendedmonthly average≤ 30 mg/Lall year01B
Solids, total suspendeddaily maximum≤ 100 mg/Lall year01B
Oil & Greasemonthly average≤ 15 mg/Lall year01B
Oil & Greasedaily maximum≤ 20 mg/Lall year01B
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year01B
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year01B
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year01C
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year01C
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year01C
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year08A
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year08A
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year08A
Chlorine, free availablemonthly average≤ .2 mg/Lall year08A
Chlorine, free availabledaily maximum≤ .5 mg/Lall year08A
pHinstantaneous minimum≥ 6 SUall year08B
pHinstantaneous maximum≤ 9 SUall year08B
Solids, total suspendedmonthly average≤ 30 mg/Lall year08B
Solids, total suspendeddaily maximum≤ 100 mg/Lall year08B
Oil & Greasemonthly average≤ 15 mg/Lall year08B
Oil & Greasedaily maximum≤ 20 mg/Lall year08B
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year08B
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year08B

How strict are these limits?

Cited limits by parameter: South Carolina's rules and the federal ones.

Same industry: the 17 Electric Services permits in South Carolina.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/SC0002291 · MCP: https://passage-data.com/mcp