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Dominion Energy South Carolina, Inc.

Electric Services, major discharger, Cope, South Carolina. NPDES permit SC0045772 expired Dec 31, 2023; 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 (4 values), outfall 001 form Q quarterly (10 values), outfall 002 form 1 monthly (5 values), outfall 003 form Q quarterly (6 values), outfall 01A form 1 quarterly (6 values), outfall 01B form 1 quarterly (6 values), and 2 more forms
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 42 reports late

Limits in force (40)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year001
Temperature, water deg. fahrenheitinstantaneous maximum≤ 91.5 deg Fall year001
pHinstantaneous minimum≥ 6 SUall year001
pHinstantaneous maximum≤ 9 SUall year001
Solids, total suspendedmonthly averagereport only (mg/L)all year001
Solids, total suspendeddaily maximumreport only (mg/L)all year001
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)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
Bromide [as Br]monthly averagereport only (mg/L)all year001
Bromide [as Br]daily maximumreport only (mg/L)all year001
Mercury, total [as Hg]monthly averagereport only (ng/L)all year001
Mercury, total [as Hg]daily maximumreport only (ng/L)all year001
%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly averagereport only (%)all year001
%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiadaily maximumreport only (%)all year001
Chlorine, total residual [dsg. time]daily maximum≤ 120 min/dall year002
Priority Pollutantsdaily maximum≤ 0 mg/Lall year002
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002
Chlorine, total residualmonthly average≤ .2 mg/Lall year002
Chlorine, total residualinstantaneous maximum≤ .5 mg/Lall year002
Solids, total suspendedmonthly average≤ 30 mg/Lall year003
Solids, total suspendedinstantaneous maximum≤ 100 mg/Lall year003
Oil & Greasemonthly average≤ 15 mg/Lall year003
Oil & Greasedaily maximum≤ 20 mg/Lall 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
Solids, total suspendedmonthly average≤ 30 mg/Lall year01A
Solids, total suspendeddaily maximum≤ 100 mg/Lall year01A
Oil & Greasemonthly average≤ 15 mg/Lall year01A
Oil & Greasedaily maximum≤ 20 mg/Lall 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
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

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/SC0045772 · MCP: https://passage-data.com/mcp