ROCKWELL MINING, LLC — NPDES permit WV0001881: limits, due date and EPA's record

NPDES permit WV0001881 · Minor NON-POTW · effective, expires 2027-08-21 · EPA's file as of 2026-09-19

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

Reporting

Reports are due about 25 days after each monitoring period ends (the most common figure among WV permits in EPA's filings — check your permit).

Limits in force (270)

Outfall	Parameter	Statistic	Limit	Months
011	Flow rate	MO AVG	report only	all year
011	Flow rate	MO MAX	report only	all year
011	Specific conductance	MO MIN	report only	all year
011	Specific conductance	MO AVG	report only	all year
011	Specific conductance	MO MAX	report only	all year
011	pH	MO MIN	>= 6 SU	all year
011	pH	MO MAX	<= 9 SU	all year
011	Solids, total suspended	MO MIN	report only	all year
011	Solids, total suspended	MO MIN	report only	all year
011	Solids, total suspended	MO AVG	<= 163 mg/L	all year
011	Solids, total suspended	MO AVG	<= 35 mg/L	all year
011	Solids, total suspended	MO MAX	report only	all year
011	Solids, total suspended	MO MAX	<= 70 mg/L	all year
011	Solids, settleable	MO MIN	report only	all year
011	Solids, settleable	MO AVG	report only	all year
011	Solids, settleable	MO MAX	<= .5 mL/L	all year
011	Sulfate, total [as SO4]	MO MIN	report only	all year
011	Sulfate, total [as SO4]	MO AVG	report only	all year
011	Sulfate, total [as SO4]	MO MAX	report only	all year
011	Iron, total [as Fe]	MO MIN	report only	all year
011	Iron, total [as Fe]	MO AVG	<= 1.67 mg/L	all year
011	Iron, total [as Fe]	MO MAX	<= 2.89 mg/L	all year
011	Manganese, total [as Mn]	MO MIN	report only	all year
011	Manganese, total [as Mn]	MO AVG	<= 2 mg/L	all year
011	Manganese, total [as Mn]	MO MAX	<= 3.47 mg/L	all year
011	Aluminum, total [as Al]	MO MIN	report only	all year
011	Aluminum, total [as Al]	MO AVG	<= .78 mg/L	all year
011	Aluminum, total [as Al]	MO MAX	<= 1.35 mg/L	all year
011	Aluminum, dissolved [as Al]	MO MIN	report only	all year
011	Aluminum, dissolved [as Al]	MO AVG	report only	all year
011	Aluminum, dissolved [as Al]	MO MAX	report only	all year
011	Solids, total dissolved	MO MIN	report only	all year
011	Solids, total dissolved	MO AVG	report only	all year
011	Solids, total dissolved	MO MAX	report only	all year
012	Flow rate	MO AVG	report only	all year
012	Flow rate	MO MAX	report only	all year
012	Specific conductance	MO MIN	report only	all year
012	Specific conductance	MO AVG	report only	all year
012	Specific conductance	MO MAX	report only	all year
012	pH	MO MIN	>= 6 SU	all year
012	pH	MO MAX	<= 9 SU	all year
012	Solids, total suspended	MO MIN	report only	all year
012	Solids, total suspended	MO AVG	<= 163 mg/L	all year
012	Solids, total suspended	MO AVG	<= 35 mg/L	all year
012	Solids, total suspended	MO MAX	<= 70 mg/L	all year
012	Solids, settleable	MO MAX	<= .5 mL/L	all year
012	Sulfate, total [as SO4]	MO MIN	report only	all year
012	Sulfate, total [as SO4]	MO AVG	report only	all year
012	Sulfate, total [as SO4]	MO MAX	report only	all year
012	Iron, total [as Fe]	MO MIN	report only	all year
012	Iron, total [as Fe]	MO AVG	<= 1.42 mg/L	all year
012	Iron, total [as Fe]	MO MAX	<= 2.46 mg/L	all year
012	Manganese, total [as Mn]	MO MIN	report only	all year
012	Manganese, total [as Mn]	MO AVG	<= 2 mg/L	all year
012	Manganese, total [as Mn]	MO MAX	<= 4 mg/L	all year
012	Aluminum, total [as Al]	MO MIN	report only	all year
012	Aluminum, total [as Al]	MO AVG	<= 3 mg/L	all year
012	Aluminum, total [as Al]	MO MAX	<= 6 mg/L	all year
012	Aluminum, dissolved [as Al]	MO MIN	report only	all year
012	Aluminum, dissolved [as Al]	MO AVG	report only	all year
012	Aluminum, dissolved [as Al]	MO MAX	report only	all year
012	Solids, total dissolved	MO MIN	report only	all year
012	Solids, total dissolved	MO AVG	report only	all year
012	Solids, total dissolved	MO MAX	report only	all year
013	Flow rate	MO AVG	report only	all year
013	Flow rate	MO MAX	report only	all year
013	Specific conductance	MO MIN	report only	all year
013	Specific conductance	MO AVG	report only	all year
013	Specific conductance	MO MAX	report only	all year
013	pH	MO MIN	>= 6 SU	all year
013	pH	MO MAX	<= 9 SU	all year
013	Solids, total suspended	MO MIN	report only	all year
013	Solids, total suspended	MO AVG	<= 163 mg/L	all year
013	Solids, total suspended	MO AVG	<= 35 mg/L	all year
013	Solids, total suspended	MO MAX	<= 70 mg/L	all year
013	Solids, settleable	MO MAX	<= .5 mL/L	all year
013	Sulfate, total [as SO4]	MO MIN	report only	all year
013	Sulfate, total [as SO4]	MO AVG	report only	all year
013	Sulfate, total [as SO4]	MO MAX	report only	all year
013	Iron, total [as Fe]	MO MIN	report only	all year
013	Iron, total [as Fe]	MO AVG	<= 1.42 mg/L	all year
013	Iron, total [as Fe]	MO MAX	<= 2.46 mg/L	all year
013	Manganese, total [as Mn]	MO MIN	report only	all year
013	Manganese, total [as Mn]	MO AVG	<= 2 mg/L	all year
013	Manganese, total [as Mn]	MO MAX	<= 4 mg/L	all year
013	Aluminum, total [as Al]	MO MIN	report only	all year
013	Aluminum, total [as Al]	MO AVG	<= 3 mg/L	all year
013	Aluminum, total [as Al]	MO MAX	<= 6 mg/L	all year
013	Aluminum, dissolved [as Al]	MO MIN	report only	all year
013	Aluminum, dissolved [as Al]	MO AVG	report only	all year
013	Aluminum, dissolved [as Al]	MO MAX	report only	all year
013	Solids, total dissolved	MO MIN	report only	all year
013	Solids, total dissolved	MO AVG	report only	all year
013	Solids, total dissolved	MO MAX	report only	all year
014	Flow rate	MO AVG	report only	all year
014	Flow rate	MO MAX	report only	all year
014	Specific conductance	MO MIN	report only	all year
014	Specific conductance	MO AVG	report only	all year
014	Specific conductance	MO MAX	report only	all year
014	pH	MO MIN	>= 6 SU	all year
014	pH	MO MAX	<= 9 SU	all year
014	Solids, total suspended	MO MIN	report only	all year
014	Solids, total suspended	MO AVG	<= 163 mg/L	all year
014	Solids, total suspended	MO AVG	<= 35 mg/L	all year
014	Solids, total suspended	MO MAX	<= 70 mg/L	all year
014	Solids, settleable	MO MAX	<= .5 mL/L	all year
014	Sulfate, total [as SO4]	MO MIN	report only	all year
014	Sulfate, total [as SO4]	MO AVG	report only	all year
014	Sulfate, total [as SO4]	MO MAX	report only	all year
014	Iron, total [as Fe]	MO MIN	report only	all year
014	Iron, total [as Fe]	MO AVG	<= 1.42 mg/L	all year
014	Iron, total [as Fe]	MO MAX	<= 2.46 mg/L	all year
014	Manganese, total [as Mn]	MO MIN	report only	all year
014	Manganese, total [as Mn]	MO AVG	<= 2 mg/L	all year
014	Manganese, total [as Mn]	MO MAX	<= 4 mg/L	all year
014	Aluminum, total [as Al]	MO MIN	report only	all year
014	Aluminum, total [as Al]	MO AVG	<= 3 mg/L	all year
014	Aluminum, total [as Al]	MO MAX	<= 6 mg/L	all year
014	Aluminum, dissolved [as Al]	MO MIN	report only	all year
014	Aluminum, dissolved [as Al]	MO AVG	report only	all year
014	Aluminum, dissolved [as Al]	MO MAX	report only	all year
014	Solids, total dissolved	MO MIN	report only	all year
014	Solids, total dissolved	MO AVG	report only	all year
014	Solids, total dissolved	MO MAX	report only	all year
401	Oxygen, dissolved [DO]	MO MIN	>= 6 mg/L	all year
401	BOD, 5-day, 20 deg. C	MO AVG	<= 5 mg/L	all year
401	BOD, 5-day, 20 deg. C	MO MAX	<= 10 mg/L	all year
401	BOD, 5-day, 20 deg. C	MO AVG	<= .25 lb/d	all year
401	BOD, 5-day, 20 deg. C	MO MAX	<= .5 lb/d	all year
401	pH	MO MIN	>= 6 SU	all year
401	pH	MO MAX	<= 9 SU	all year
401	Solids, total suspended	MO AVG	<= 30 mg/L	all year
401	Solids, total suspended	MO MAX	<= 60 mg/L	all year
401	Solids, total suspended	MO AVG	<= 1.5 lb/d	all year
401	Solids, total suspended	MO MAX	<= 3 lb/d	all year
401	Nitrogen, ammonia total [as N]	MO AVG	<= 3 mg/L	all year
401	Nitrogen, ammonia total [as N]	MO MAX	<= 6 mg/L	all year
401	Nitrogen, ammonia total [as N]	MO AVG	<= .15 lb/d	all year
401	Nitrogen, ammonia total [as N]	MO MAX	<= .3 lb/d	all year
401	Flow, in conduit or thru treatment plant	MO MAX	<= .006 MGD	all year
401	Chlorine, total residual	MO MIN	report only	all year
401	Chlorine, total residual	MO AVG	<= 28 ug/L	all year
401	Chlorine, total residual	MO MAX	<= 56 ug/L	all year
401	Coliform, fecal general	MO AVG	<= 200 #/100mL	all year
401	Coliform, fecal general	MO MAX	<= 400 #/100mL	all year
DJB010	Stream flow, instantaneous	MO AVG	report only	all year
DJB010	Stream flow, instantaneous	MO MAX	report only	all year
DJB010	Specific conductance	MO AVG	report only	all year
DJB010	Specific conductance	MO MAX	report only	all year
DJB010	pH	MO MIN	report only	all year
DJB010	pH	MO MAX	report only	all year
DJB010	Sulfate, total [as SO4]	MO AVG	report only	all year
DJB010	Sulfate, total [as SO4]	MO MAX	report only	all year
DJB010	Iron, total [as Fe]	MO AVG	report only	all year
DJB010	Iron, total [as Fe]	MO MAX	report only	all year
DJB010	Manganese, total [as Mn]	MO MIN	report only	all year
DJB010	Manganese, total [as Mn]	MO AVG	report only	all year
DJB010	Manganese, total [as Mn]	MO MAX	report only	all year
DJB010	Aluminum, total [as Al]	MO MIN	report only	all year
DJB010	Aluminum, total [as Al]	MO AVG	report only	all year
DJB010	Aluminum, total [as Al]	MO MAX	report only	all year
DJB010	Aluminum, dissolved [as Al]	MO MIN	report only	all year
DJB010	Aluminum, dissolved [as Al]	MO AVG	report only	all year
DJB010	Aluminum, dissolved [as Al]	MO MAX	report only	all year
DJB010	Solids, total dissolved	MO AVG	report only	all year
DJB010	Solids, total dissolved	MO MAX	report only	all year
DPF	Stream flow, instantaneous	MO AVG	report only	all year
DPF	Stream flow, instantaneous	MO MAX	report only	all year
DPF	Specific conductance	MO AVG	report only	all year
DPF	Specific conductance	MO MAX	report only	all year
DPF	pH	MO MIN	report only	all year
DPF	pH	MO MAX	report only	all year
DPF	Sulfate, total [as SO4]	MO AVG	report only	all year
DPF	Sulfate, total [as SO4]	MO MAX	report only	all year
DPF	Iron, total [as Fe]	MO AVG	report only	all year
DPF	Iron, total [as Fe]	MO MAX	report only	all year
DPF	Manganese, total [as Mn]	MO MIN	report only	all year
DPF	Manganese, total [as Mn]	MO AVG	report only	all year
DPF	Manganese, total [as Mn]	MO MAX	report only	all year
DPF	Aluminum, total [as Al]	MO MIN	report only	all year
DPF	Aluminum, total [as Al]	MO AVG	report only	all year
DPF	Aluminum, total [as Al]	MO MAX	report only	all year
DPF	Aluminum, dissolved [as Al]	MO MIN	report only	all year
DPF	Aluminum, dissolved [as Al]	MO AVG	report only	all year
DPF	Aluminum, dissolved [as Al]	MO MAX	report only	all year
DPF	Solids, total dissolved	MO AVG	report only	all year
DPF	Solids, total dissolved	MO MAX	report only	all year
DSBCB	Stream flow, instantaneous	MO AVG	report only	all year
DSBCB	Stream flow, instantaneous	MO MAX	report only	all year
DSBCB	Specific conductance	MO AVG	report only	all year
DSBCB	Specific conductance	MO MAX	report only	all year
DSBCB	pH	MO MIN	report only	all year
DSBCB	pH	MO MAX	report only	all year
DSBCB	Sulfate, total [as SO4]	MO AVG	report only	all year
DSBCB	Sulfate, total [as SO4]	MO MAX	report only	all year
DSBCB	Iron, total [as Fe]	MO AVG	report only	all year
DSBCB	Iron, total [as Fe]	MO MAX	report only	all year
DSBCB	Manganese, total [as Mn]	MO MIN	report only	all year
DSBCB	Manganese, total [as Mn]	MO AVG	report only	all year
DSBCB	Manganese, total [as Mn]	MO MAX	report only	all year
DSBCB	Aluminum, total [as Al]	MO MIN	report only	all year
DSBCB	Aluminum, total [as Al]	MO AVG	report only	all year
DSBCB	Aluminum, total [as Al]	MO MAX	report only	all year
DSBCB	Aluminum, dissolved [as Al]	MO MIN	report only	all year
DSBCB	Aluminum, dissolved [as Al]	MO AVG	report only	all year
DSBCB	Aluminum, dissolved [as Al]	MO MAX	report only	all year
DSBCB	Solids, total dissolved	MO AVG	report only	all year
DSBCB	Solids, total dissolved	MO MAX	report only	all year
DWF	Stream flow, instantaneous	MO AVG	report only	all year
DWF	Stream flow, instantaneous	MO MAX	report only	all year
DWF	Specific conductance	MO AVG	report only	all year
DWF	Specific conductance	MO MAX	report only	all year
DWF	pH	MO MIN	report only	all year
DWF	pH	MO MAX	report only	all year
DWF	Sulfate, total [as SO4]	MO AVG	report only	all year
DWF	Sulfate, total [as SO4]	MO MAX	report only	all year
DWF	Iron, total [as Fe]	MO AVG	report only	all year
DWF	Iron, total [as Fe]	MO MAX	report only	all year
DWF	Manganese, total [as Mn]	MO MIN	report only	all year
DWF	Manganese, total [as Mn]	MO AVG	report only	all year
DWF	Manganese, total [as Mn]	MO MAX	report only	all year
DWF	Aluminum, total [as Al]	MO MIN	report only	all year
DWF	Aluminum, total [as Al]	MO AVG	report only	all year
DWF	Aluminum, total [as Al]	MO MAX	report only	all year
DWF	Aluminum, dissolved [as Al]	MO MIN	report only	all year
DWF	Aluminum, dissolved [as Al]	MO AVG	report only	all year
DWF	Aluminum, dissolved [as Al]	MO MAX	report only	all year
DWF	Solids, total dissolved	MO AVG	report only	all year
DWF	Solids, total dissolved	MO MAX	report only	all year
UJB010	Stream flow, instantaneous	MO AVG	report only	all year
UJB010	Stream flow, instantaneous	MO MAX	report only	all year
UJB010	Specific conductance	MO AVG	report only	all year
UJB010	Specific conductance	MO MAX	report only	all year
UJB010	pH	MO MIN	report only	all year
UJB010	pH	MO MAX	report only	all year
UJB010	Sulfate, total [as SO4]	MO AVG	report only	all year
UJB010	Sulfate, total [as SO4]	MO MAX	report only	all year
UJB010	Iron, total [as Fe]	MO MIN	report only	all year
UJB010	Iron, total [as Fe]	MO AVG	report only	all year
UJB010	Iron, total [as Fe]	MO MAX	report only	all year
UJB010	Manganese, total [as Mn]	MO MIN	report only	all year
UJB010	Manganese, total [as Mn]	MO AVG	report only	all year
UJB010	Manganese, total [as Mn]	MO MAX	report only	all year
UJB010	Aluminum, total [as Al]	MO MIN	report only	all year
UJB010	Aluminum, total [as Al]	MO AVG	report only	all year
UJB010	Aluminum, total [as Al]	MO MAX	report only	all year
UJB010	Aluminum, dissolved [as Al]	MO MIN	report only	all year
UJB010	Aluminum, dissolved [as Al]	MO AVG	report only	all year
UJB010	Aluminum, dissolved [as Al]	MO MAX	report only	all year
UJB010	Solids, total dissolved	MO AVG	report only	all year
UJB010	Solids, total dissolved	MO MAX	report only	all year
UPF	Stream flow, instantaneous	MO AVG	report only	all year
UPF	Stream flow, instantaneous	MO MAX	report only	all year
UPF	Specific conductance	MO AVG	report only	all year
UPF	Specific conductance	MO MAX	report only	all year
UPF	pH	MO MIN	report only	all year
UPF	pH	MO MAX	report only	all year
UPF	Sulfate, total [as SO4]	MO AVG	report only	all year
UPF	Sulfate, total [as SO4]	MO MAX	report only	all year
UPF	Iron, total [as Fe]	MO MIN	report only	all year
UPF	Iron, total [as Fe]	MO AVG	report only	all year
UPF	Iron, total [as Fe]	MO MAX	report only	all year
UPF	Manganese, total [as Mn]	MO MIN	report only	all year
UPF	Manganese, total [as Mn]	MO AVG	report only	all year
UPF	Manganese, total [as Mn]	MO MAX	report only	all year
UPF	Aluminum, total [as Al]	MO MIN	report only	all year
UPF	Aluminum, total [as Al]	MO AVG	report only	all year
UPF	Aluminum, total [as Al]	MO MAX	report only	all year
UPF	Solids, total dissolved	MO AVG	report only	all year
UPF	Solids, total dissolved	MO MAX	report only	all year