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Westinghouse Electric Company LLC

Industrial Inorganic Chemicals, major discharger, Hopkins, South Carolina. NPDES permit SC0001848, in force until Oct 31, 2028. Last 12 months: over a limit once (last July 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form 1 monthly (29 values), outfall 001 form 2 quarterly (2 values), outfall 001 form 4 monthly (2 values), outfall 001 form 5 quarterly (2 values), outfall 01A form 1 monthly (6 values), outfall 001 form 3 yearly
Renewal application due
May 4, 2028 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 1 of 45 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period endingParameterReportedLimitOver by
July 2026Oxygen, dissolved [DO], instantaneous minimum4.7≥ 5 mg/L6%

Limits in force (53)

ParameterStatisticLimitMonthsOutfall
Oxygen demand, ultimatemonthly average= 265.5 lb/dMar–Oct001
Oxygen demand, ultimatemonthly averagereport only (lb/d)Jan, Feb, Nov, Dec001
Oxygen demand, ultimatedaily maximum= 531 lb/dMar–Oct001
Oxygen demand, ultimatedaily maximumreport only (lb/d)Jan, Feb, Nov, Dec001
Oxygen, dissolved [DO]instantaneous minimum≥ 5 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)Mar–Oct001
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)Jan, Feb, Nov, Dec001
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)Mar–Oct001
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)Jan, Feb, Nov, Dec001
BOD, 5-day, 20 deg. Cmonthly averagereport only (lb/d)Mar–Oct001
BOD, 5-day, 20 deg. Cmonthly average= 30 lb/dJan, Feb, Nov, Dec001
BOD, 5-day, 20 deg. Cdaily maximumreport only (lb/d)Mar–Oct001
BOD, 5-day, 20 deg. Cdaily maximum= 60 lb/dJan, Feb, Nov, Dec001
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
Solids, total suspendedmonthly average≤ 32 lb/dall year001
Solids, total suspendeddaily maximum≤ 64 lb/dall year001
Oil & Greasemonthly averagereport only (mg/L)all year001
Oil & Greasedaily maximumreport only (mg/L)all year001
Nitrogen, total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, total [as N]daily maximumreport only (mg/L)all year001
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)Mar–Oct001
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)Jan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)Mar–Oct001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)Jan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]monthly averagereport only (lb/d)Mar–Oct001
Nitrogen, ammonia total [as N]monthly average= 50 lb/dJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximumreport only (lb/d)Mar–Oct001
Nitrogen, ammonia total [as N]daily maximum= 100 lb/dJan, Feb, Nov, Dec001
Nitrogen, nitrate total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, nitrate total [as N]daily maximumreport only (mg/L)all year001
Phosphorus, total [as P]monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]daily maximumreport only (mg/L)all year001
Fluoride, total [as F]monthly averagereport only (mg/L)all year001
Fluoride, total [as F]daily maximumreport only (mg/L)all year001
Uranium, totalmonthly averagereport only (ug/L)all year001
Uranium, totaldaily maximumreport only (ug/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 average≤ .5 mg/Lall year001
Chlorine, total residualdaily maximum≤ 1 mg/Lall 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 average= 25 %all year001
%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiadaily maximum= 40 %all year001
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 MPN/100mLall year01A
E. colidaily maximum≤ 349 MPN/100mLall year01A

How strict are these limits?

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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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/SC0001848 · MCP: https://passage-data.com/mcp