Ferroglobe USA Mining, LLC

NPDES permit KY0114022 · Minor NON-POTW · effective, expires 2029-11-30 · EPA's file as of 2026-09-19

Check this month's numbers before you file
Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

EPA's record, 2025-09-01 to 2026-08-31

0values over a limit
0required values missing, on 0 form(s)
0of 99 forms filed late

Last period with anything received: 2026-07-31.

Reporting

Reports are due about 28 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (198)

OutfallParameterStatisticLimitMonths
001Specific conductanceMO AVG report only all year
001Specific conductanceDAILY MX report only all year
001pHMINIMUM >= 6 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspendedMO AVG <= 35 mg/L all year
001Solids, total suspendedDAILY MX <= 70 mg/L all year
001Solids, settleableDAILY MX <= .5 mL/L all year
001Solids, settleableDAILY MX <= .5 mg/L all year
001Sulfate, total [as SO4]MO AVG report only all year
001Sulfate, total [as SO4]DAILY MX report only all year
001Iron, total recoverableMO AVG <= 1 mg/L all year
001Iron, total recoverableDAILY MX <= 4 mg/L all year
001Manganese, total recoverableMO AVG <= 2 mg/L all year
001Manganese, total recoverableDAILY MX <= 4 mg/L all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Date of Sample CollectionMO AVG report only all year
001Date of Sample CollectionMO AVG report only all year
001Date of Storm EventMO AVG report only all year
001Date of Storm EventMO AVG report only all year
001Precipitation volumeDAILY MX report only all year
001Precipitation volumeDAILY MX report only all year
002Specific conductanceMO AVG report only all year
002Specific conductanceDAILY MX report only all year
002pHMINIMUM >= 6 SU all year
002pHDAILY MX <= 9 SU all year
002Solids, total suspendedMO AVG <= 35 mg/L all year
002Solids, total suspendedDAILY MX <= 70 mg/L all year
002Solids, settleableDAILY MX <= .5 mL/L all year
002Solids, settleableDAILY MX <= .5 mg/L all year
002Sulfate, total [as SO4]MO AVG report only all year
002Sulfate, total [as SO4]DAILY MX report only all year
002Iron, total recoverableMO AVG <= 1 mg/L all year
002Iron, total recoverableDAILY MX <= 4 mg/L all year
002Manganese, total recoverableMO AVG <= 2 mg/L all year
002Manganese, total recoverableDAILY MX <= 4 mg/L all year
002Flow, in conduit or thru treatment plantMO AVG report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002Date of Sample CollectionMO AVG report only all year
002Date of Sample CollectionMO AVG report only all year
002Date of Storm EventMO AVG report only all year
002Date of Storm EventMO AVG report only all year
002Precipitation volumeDAILY MX report only all year
002Precipitation volumeDAILY MX report only all year
003Specific conductanceMO AVG report only all year
003Specific conductanceDAILY MX report only all year
003pHMINIMUM >= 6 SU all year
003pHDAILY MX <= 9 SU all year
003Solids, total suspendedMO AVG <= 35 mg/L all year
003Solids, total suspendedDAILY MX <= 70 mg/L all year
003Solids, settleableDAILY MX <= .5 mL/L all year
003Solids, settleableDAILY MX <= .5 mg/L all year
003Sulfate, total [as SO4]MO AVG report only all year
003Sulfate, total [as SO4]DAILY MX report only all year
003Iron, total recoverableMO AVG <= 1 mg/L all year
003Iron, total recoverableDAILY MX <= 4 mg/L all year
003Manganese, total recoverableMO AVG <= 2 mg/L all year
003Manganese, total recoverableDAILY MX <= 4 mg/L all year
003Flow, in conduit or thru treatment plantMO AVG report only all year
003Flow, in conduit or thru treatment plantDAILY MX report only all year
003Date of Sample CollectionMO AVG report only all year
003Date of Sample CollectionMO AVG report only all year
003Date of Storm EventMO AVG report only all year
003Date of Storm EventMO AVG report only all year
003Precipitation volumeDAILY MX report only all year
003Precipitation volumeDAILY MX report only all year
004Specific conductanceMO AVG report only all year
004Specific conductanceDAILY MX report only all year
004pHMINIMUM >= 6 SU all year
004pHDAILY MX <= 9 SU all year
004Solids, total suspendedMO AVG <= 35 mg/L all year
004Solids, total suspendedDAILY MX <= 70 mg/L all year
004Solids, settleableDAILY MX <= .5 mL/L all year
004Solids, settleableDAILY MX <= .5 mg/L all year
004Sulfate, total [as SO4]MO AVG report only all year
004Sulfate, total [as SO4]DAILY MX report only all year
004Iron, total recoverableMO AVG <= 1 mg/L all year
004Iron, total recoverableDAILY MX <= 4 mg/L all year
004Manganese, total recoverableMO AVG <= 2 mg/L all year
004Manganese, total recoverableDAILY MX <= 4 mg/L all year
004Flow, in conduit or thru treatment plantMO AVG report only all year
004Flow, in conduit or thru treatment plantDAILY MX report only all year
004Date of Sample CollectionMO AVG report only all year
004Date of Sample CollectionMO AVG report only all year
004Date of Storm EventMO AVG report only all year
004Date of Storm EventMO AVG report only all year
004Precipitation volumeDAILY MX report only all year
004Precipitation volumeDAILY MX report only all year
005Specific conductanceMO AVG report only all year
005Specific conductanceDAILY MX report only all year
005pHMINIMUM >= 6 SU all year
005pHDAILY MX <= 9 SU all year
005Solids, total suspendedMO AVG <= 35 mg/L all year
005Solids, total suspendedDAILY MX <= 70 mg/L all year
005Solids, settleableDAILY MX <= .5 mL/L all year
005Solids, settleableDAILY MX <= .5 mg/L all year
005Sulfate, total [as SO4]MO AVG report only all year
005Sulfate, total [as SO4]DAILY MX report only all year
005Iron, total recoverableMO AVG <= 1 mg/L all year
005Iron, total recoverableDAILY MX <= 4 mg/L all year
005Manganese, total recoverableMO AVG <= 2 mg/L all year
005Manganese, total recoverableDAILY MX <= 4 mg/L all year
005Flow, in conduit or thru treatment plantMO AVG report only all year
005Flow, in conduit or thru treatment plantDAILY MX report only all year
005Date of Sample CollectionMO AVG report only all year
005Date of Sample CollectionMO AVG report only all year
005Date of Storm EventMO AVG report only all year
005Date of Storm EventMO AVG report only all year
005Precipitation volumeDAILY MX report only all year
005Precipitation volumeDAILY MX report only all year
006Specific conductanceMO AVG report only all year
006Specific conductanceDAILY MX report only all year
006pHMINIMUM >= 6 SU all year
006pHDAILY MX <= 9 SU all year
006Solids, total suspendedMO AVG <= 35 mg/L all year
006Solids, total suspendedDAILY MX <= 70 mg/L all year
006Solids, settleableDAILY MX <= .5 mL/L all year
006Solids, settleableDAILY MX <= .5 mg/L all year
006Sulfate, total [as SO4]MO AVG report only all year
006Sulfate, total [as SO4]DAILY MX report only all year
006Iron, total recoverableMO AVG <= 1 mg/L all year
006Iron, total recoverableDAILY MX <= 4 mg/L all year
006Manganese, total recoverableMO AVG <= 2 mg/L all year
006Manganese, total recoverableDAILY MX <= 4 mg/L all year
006Flow, in conduit or thru treatment plantMO AVG report only all year
006Flow, in conduit or thru treatment plantDAILY MX report only all year
006Date of Sample CollectionMO AVG report only all year
006Date of Sample CollectionMO AVG report only all year
006Date of Storm EventMO AVG report only all year
006Date of Storm EventMO AVG report only all year
006Precipitation volumeDAILY MX report only all year
006Precipitation volumeDAILY MX report only all year
007Specific conductanceMO AVG report only all year
007Specific conductanceDAILY MX report only all year
007pHMINIMUM >= 6 SU all year
007pHDAILY MX <= 9 SU all year
007Solids, total suspendedMO AVG <= 35 mg/L all year
007Solids, total suspendedDAILY MX <= 70 mg/L all year
007Solids, settleableDAILY MX <= .5 mL/L all year
007Solids, settleableDAILY MX <= .5 mg/L all year
007Sulfate, total [as SO4]MO AVG report only all year
007Sulfate, total [as SO4]DAILY MX report only all year
007Iron, total recoverableMO AVG <= 1 mg/L all year
007Iron, total recoverableDAILY MX <= 4 mg/L all year
007Manganese, total recoverableMO AVG <= 2 mg/L all year
007Manganese, total recoverableDAILY MX <= 4 mg/L all year
007Flow, in conduit or thru treatment plantMO AVG report only all year
007Flow, in conduit or thru treatment plantDAILY MX report only all year
007Date of Sample CollectionMO AVG report only all year
007Date of Sample CollectionMO AVG report only all year
007Date of Storm EventMO AVG report only all year
007Date of Storm EventMO AVG report only all year
007Precipitation volumeDAILY MX report only all year
007Precipitation volumeDAILY MX report only all year
008Specific conductanceMO AVG report only all year
008Specific conductanceDAILY MX report only all year
008pHMINIMUM >= 6 SU all year
008pHDAILY MX <= 9 SU all year
008Solids, total suspendedMO AVG <= 35 mg/L all year
008Solids, total suspendedDAILY MX <= 70 mg/L all year
008Solids, settleableDAILY MX <= .5 mL/L all year
008Solids, settleableDAILY MX <= .5 mg/L all year
008Sulfate, total [as SO4]MO AVG report only all year
008Sulfate, total [as SO4]DAILY MX report only all year
008Iron, total recoverableMO AVG <= 1 mg/L all year
008Iron, total recoverableDAILY MX <= 4 mg/L all year
008Manganese, total recoverableMO AVG <= 2 mg/L all year
008Manganese, total recoverableDAILY MX <= 4 mg/L all year
008Flow, in conduit or thru treatment plantMO AVG report only all year
008Flow, in conduit or thru treatment plantDAILY MX report only all year
008Date of Sample CollectionMO AVG report only all year
008Date of Sample CollectionMO AVG report only all year
008Date of Storm EventMO AVG report only all year
008Date of Storm EventMO AVG report only all year
008Precipitation volumeDAILY MX report only all year
008Precipitation volumeDAILY MX report only all year
009Specific conductanceMO AVG report only all year
009Specific conductanceDAILY MX report only all year
009pHMINIMUM >= 6 SU all year
009pHDAILY MX <= 9 SU all year
009Solids, total suspendedMO AVG <= 35 mg/L all year
009Solids, total suspendedDAILY MX <= 70 mg/L all year
009Solids, settleableDAILY MX <= .5 mL/L all year
009Solids, settleableDAILY MX <= .5 mg/L all year
009Sulfate, total [as SO4]MO AVG report only all year
009Sulfate, total [as SO4]DAILY MX report only all year
009Iron, total recoverableMO AVG <= 1 mg/L all year
009Iron, total recoverableDAILY MX <= 4 mg/L all year
009Manganese, total recoverableMO AVG <= 2 mg/L all year
009Manganese, total recoverableDAILY MX <= 4 mg/L all year
009Flow, in conduit or thru treatment plantMO AVG report only all year
009Flow, in conduit or thru treatment plantDAILY MX report only all year
009Date of Sample CollectionMO AVG report only all year
009Date of Sample CollectionMO AVG report only all year
009Date of Storm EventMO AVG report only all year
009Date of Storm EventMO AVG report only all year
009Precipitation volumeDAILY MX report only all year
009Precipitation volumeDAILY MX 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