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Resonac Graphite America, Inc.

Carbon And Graphite Products, major discharger, Ridgeville, South Carolina. NPDES permit SC0038555 expired Jul 31, 2018; its limits still apply. Last 12 months: no values over a limit, 4 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 29 days after each period: outfall 001 form 1 monthly (18 values), outfall 001 form 4 quarterly (4 values), outfall 01A form 1 quarterly (10 values), outfall 001 form 2 every 52 months, outfall 001 form 3 yearly
Last report on file
August 2026
Oct 2024 – Sep 2025
6 values over a limit, 0 required values missing, 0 of 21 reports late

Limits in force (35)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitdaily maximum≤ 90 deg Fall year001
Oxygen, dissolved [DO]instantaneous minimum≥ 5 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 11 mg/Lall year001
BOD, 5-day, 20 deg. Cdaily maximum≤ 21 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 13.6 lb/dall year001
BOD, 5-day, 20 deg. Cdaily maximum≤ 27.2 lb/dall year001
pHinstantaneous minimumreport only (SU)all year001
pHinstantaneous maximumreport only (SU)all year001
Solids, total suspendedmonthly average≤ 13 mg/Lall year001
Solids, total suspendeddaily maximum≤ 23 mg/Lall year001
Solids, total suspendedmonthly average≤ 13.6 lb/dall year001
Solids, total suspendeddaily maximum≤ 27.2 lb/dall year001
Oil & Greasemonthly average≤ 10 mg/Lall year001
Oil & Greasedaily maximum≤ 20 mg/Lall year001
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year001
Hardness, total [as CaCO3]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
Chlorine, total residualmonthly averagereport only (mg/L)all year001
Chlorine, total residualdaily 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
Length of longest pH excursioninstantaneous maximum≤ 60 minall year001
% of time exceeding pH limitsinstantaneous maximum≤ 1 %all year001
Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubiadaily maximum≤ 0 pass=0;fail=1all year001
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year01A
BOD, 5-day, 20 deg. Cdaily maximum≤ 60 mg/Lall year01A
pHinstantaneous minimum≥ 6 SUall year01A
pHinstantaneous maximum≤ 9 SUall year01A
Solids, total suspendedmonthly average≤ 30 mg/Lall year01A
Solids, total suspendeddaily maximum≤ 60 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
E. coli30-day geometric mean≤ 126 #/100mLall year01A
E. colidaily maximum≤ 349 #/100mLall year01A

How strict are these limits?

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

Same industry: the 7 Electronic and Other Electrical Equipment 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/SC0038555 · MCP: https://passage-data.com/mcp