CORESCO, LLC — NPDES permit WV1011731: limits, due date and EPA's record

NPDES permit WV1011731 · Minor NON-POTW · effective, expires 2031-03-02 · EPA's file as of 2026-09-19

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

Last period with anything received: 2026-06-30. Most often over: Acidity, total [as CaCO3] (4), Iron, total [as Fe] (1).

Reporting

Reports are due about 26 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (286)

Outfall	Parameter	Statistic	Limit	Months
001	Flow rate	MO AVG	report only	all year
001	Flow rate	MO MAX	report only	all year
001	Acidity, total [as CaCO3]	MO MIN	report only	all year
001	Acidity, total [as CaCO3]	MO MIN	report only	all year
001	Acidity, total [as CaCO3]	MO AVG	report only	all year
001	Acidity, total [as CaCO3]	MO AVG	report only	all year
001	Acidity, total [as CaCO3]	MO MAX	report only	all year
001	Acidity, total [as CaCO3]	MO MAX	report only	all year
001	Acidity, total [as CaCO3]	MO AVG	<= 6.37 lb/d	all year
001	Acidity, total [as CaCO3]	MO AVG	<= 6.435 lb/d	all year
001	Acidity, total [as CaCO3]	MO MAX	<= 19.72 lb/d	all year
001	Acidity, total [as CaCO3]	MO MAX	<= 19.72 lb/d	all year
001	Solids, total suspended	MO MIN	report only	all year
001	Solids, total suspended	MO AVG	<= 35 mg/L	all year
001	Solids, total suspended	MO MAX	<= 70 mg/L	all year
001	Solids, settleable	MO MIN	report only	all year
001	Solids, settleable	MO AVG	report only	all year
001	Solids, settleable	MO MAX	<= .5 mL/L	all year
001	Hardness, total [as CaCO3]	MO MAX	report only	all year
001	Arsenic, total recoverable	MO MAX	report only	all year
001	Selenium, total recoverable	MO MAX	report only	all year
001	Barium, total recoverable	MO MAX	report only	all year
001	Copper, total [as Cu]	MO MAX	report only	all year
001	Iron, total [as Fe]	MO MIN	report only	all year
001	Iron, total [as Fe]	MO AVG	<= 3 mg/L	all year
001	Iron, total [as Fe]	MO MAX	<= 6 mg/L	all year
001	Lead, total [as Pb]	MO MAX	report only	all year
001	Manganese, total [as Mn]	MO MIN	report only	all year
001	Manganese, total [as Mn]	MO AVG	<= 2 mg/L	all year
001	Manganese, total [as Mn]	MO MAX	<= 4 mg/L	all year
001	Nickel, total [as Ni]	MO MAX	report only	all year
001	Zinc, total [as Zn]	MO MAX	report only	all year
001	Aluminum, total [as Al]	MO MIN	report only	all year
001	Aluminum, total [as Al]	MO AVG	<= .84 mg/L	all year
001	Aluminum, total [as Al]	MO MAX	<= 1.45 mg/L	all year
001	Aluminum, dissolved [as Al]	MO MIN	report only	all year
001	Aluminum, dissolved [as Al]	MO AVG	report only	all year
001	Aluminum, dissolved [as Al]	MO MAX	report only	all year
001	Mercury, total recoverable	MO MAX	report only	all year
002	Flow rate	MO AVG	report only	all year
002	Flow rate	MO MAX	report only	all year
002	Acidity, total [as CaCO3]	MO MIN	report only	all year
002	Acidity, total [as CaCO3]	MO MIN	report only	all year
002	Acidity, total [as CaCO3]	MO AVG	report only	all year
002	Acidity, total [as CaCO3]	MO AVG	report only	all year
002	Acidity, total [as CaCO3]	MO MAX	report only	all year
002	Acidity, total [as CaCO3]	MO MAX	report only	all year
002	Acidity, total [as CaCO3]	MO AVG	<= 7.7 lb/d	all year
002	Acidity, total [as CaCO3]	MO AVG	<= 72.53 lb/d	all year
002	Acidity, total [as CaCO3]	MO MAX	<= 103.09 lb/d	all year
002	Acidity, total [as CaCO3]	MO MAX	<= 103.09 lb/d	all year
002	Solids, total suspended	MO MIN	report only	all year
002	Solids, total suspended	MO AVG	<= 35 mg/L	all year
002	Solids, total suspended	MO MAX	<= 70 mg/L	all year
002	Solids, settleable	MO MIN	report only	all year
002	Solids, settleable	MO AVG	report only	all year
002	Solids, settleable	MO MAX	<= .5 mL/L	all year
002	Hardness, total [as CaCO3]	MO MAX	report only	all year
002	Arsenic, total recoverable	MO MAX	report only	all year
002	Selenium, total recoverable	MO MAX	report only	all year
002	Barium, total recoverable	MO MAX	report only	all year
002	Copper, total [as Cu]	MO MAX	report only	all year
002	Iron, total [as Fe]	MO AVG	report only	all year
002	Iron, total [as Fe]	MO AVG	report only	all year
002	Iron, total [as Fe]	MO MAX	report only	all year
002	Iron, total [as Fe]	MO MAX	report only	all year
002	Iron, total [as Fe]	MO AVG	<= 1.84 lb/d	all year
002	Iron, total [as Fe]	MO AVG	<= 5.83 lb/d	all year
002	Iron, total [as Fe]	MO MAX	<= 5.83 lb/d	all year
002	Iron, total [as Fe]	MO MAX	<= 5.83 lb/d	all year
002	Lead, total [as Pb]	MO MAX	report only	all year
002	Manganese, total [as Mn]	MO AVG	<= 2 mg/L	all year
002	Manganese, total [as Mn]	MO MAX	<= 4 mg/L	all year
002	Nickel, total [as Ni]	MO MAX	report only	all year
002	Zinc, total [as Zn]	MO MAX	report only	all year
002	Aluminum, total [as Al]	MO MIN	report only	all year
002	Aluminum, total [as Al]	MO AVG	<= .84 mg/L	all year
002	Aluminum, total [as Al]	MO MAX	<= 1.45 mg/L	all year
002	Aluminum, dissolved [as Al]	MO MIN	report only	all year
002	Aluminum, dissolved [as Al]	MO AVG	report only	all year
002	Aluminum, dissolved [as Al]	MO MAX	report only	all year
002	Mercury, total recoverable	MO MAX	report only	all year
003	Flow rate	MO AVG	report only	all year
003	Flow rate	MO MAX	report only	all year
003	Specific conductance	MO MIN	report only	all year
003	Specific conductance	MO AVG	report only	all year
003	Specific conductance	MO MAX	report only	all year
003	pH	MO MIN	>= 6 SU	all year
003	pH	MO MAX	<= 9 SU	all year
003	Solids, total suspended	MO MIN	report only	all year
003	Solids, total suspended	MO AVG	<= 35 mg/L	all year
003	Solids, total suspended	MO MAX	<= 70 mg/L	all year
003	Solids, settleable	MO MAX	<= .5 mL/L	all year
003	Hardness, total [as CaCO3]	MO MAX	report only	all year
003	Sulfate, total [as SO4]	MO MIN	report only	all year
003	Sulfate, total [as SO4]	MO AVG	report only	all year
003	Sulfate, total [as SO4]	MO MAX	report only	all year
003	Arsenic, total recoverable	MO MAX	report only	all year
003	Selenium, total recoverable	MO MAX	report only	all year
003	Barium, total recoverable	MO MAX	report only	all year
003	Copper, total [as Cu]	MO MAX	report only	all year
003	Iron, total [as Fe]	MO MIN	report only	all year
003	Iron, total [as Fe]	MO AVG	<= 3 mg/L	all year
003	Iron, total [as Fe]	MO MAX	<= 5.26 mg/L	all year
003	Lead, total [as Pb]	MO MAX	report only	all year
003	Manganese, total [as Mn]	MO MIN	report only	all year
003	Manganese, total [as Mn]	MO AVG	<= 2 mg/L	all year
003	Manganese, total [as Mn]	MO MAX	<= 4 mg/L	all year
003	Nickel, total [as Ni]	MO MAX	report only	all year
003	Zinc, total [as Zn]	MO MAX	report only	all year
003	Aluminum, total [as Al]	MO MIN	report only	all year
003	Aluminum, total [as Al]	MO AVG	<= .84 mg/L	all year
003	Aluminum, total [as Al]	MO MAX	<= 1.45 mg/L	all year
003	Aluminum, dissolved [as Al]	MO MIN	report only	all year
003	Aluminum, dissolved [as Al]	MO AVG	report only	all year
003	Aluminum, dissolved [as Al]	MO MAX	report only	all year
003	Solids, total dissolved	MO MIN	report only	all year
003	Solids, total dissolved	MO AVG	report only	all year
003	Solids, total dissolved	MO MAX	report only	all year
003	Mercury, total recoverable	MO MAX	report only	all year
501	Flow rate	MO AVG	report only	all year
501	Flow rate	MO MAX	report only	all year
501	Acidity, total [as CaCO3]	MO AVG	report only	all year
501	Acidity, total [as CaCO3]	MO MAX	report only	all year
501	Hardness, total [as CaCO3]	MO MAX	report only	all year
501	Arsenic, total recoverable	MO MAX	report only	all year
501	Selenium, total recoverable	MO MAX	report only	all year
501	Barium, total recoverable	MO MAX	report only	all year
501	Copper, total [as Cu]	MO MAX	report only	all year
501	Lead, total [as Pb]	MO MAX	report only	all year
501	Zinc, total [as Zn]	MO MAX	report only	all year
501	Mercury, total recoverable	MO MAX	report only	all year
502	Flow rate	MO AVG	report only	all year
502	Flow rate	MO MAX	report only	all year
502	Acidity, total [as CaCO3]	MO AVG	report only	all year
502	Acidity, total [as CaCO3]	MO MAX	report only	all year
502	Hardness, total [as CaCO3]	MO MAX	report only	all year
502	Arsenic, total recoverable	MO MAX	report only	all year
502	Selenium, total recoverable	MO MAX	report only	all year
502	Barium, total recoverable	MO MAX	report only	all year
502	Copper, total [as Cu]	MO MAX	report only	all year
502	Lead, total [as Pb]	MO MAX	report only	all year
502	Zinc, total [as Zn]	MO MAX	report only	all year
502	Mercury, total recoverable	MO MAX	report only	all year
DBCSW4	Stream flow, instantaneous	MO AVG	report only	all year
DBCSW4	Stream flow, instantaneous	MO MAX	report only	all year
DBCSW4	Specific conductance	MO MIN	report only	all year
DBCSW4	Specific conductance	MO AVG	report only	all year
DBCSW4	Specific conductance	MO MAX	report only	all year
DBCSW4	pH	MO MIN	report only	all year
DBCSW4	pH	MO MAX	report only	all year
DBCSW4	Hardness, total [as CaCO3]	MO MAX	report only	all year
DBCSW4	Sulfate, total [as SO4]	MO MIN	report only	all year
DBCSW4	Sulfate, total [as SO4]	MO AVG	report only	all year
DBCSW4	Sulfate, total [as SO4]	MO MAX	report only	all year
DBCSW4	Arsenic, total recoverable	MO MAX	report only	all year
DBCSW4	Selenium, total recoverable	MO MAX	report only	all year
DBCSW4	Barium, total recoverable	MO MAX	report only	all year
DBCSW4	Copper, total [as Cu]	MO MAX	report only	all year
DBCSW4	Iron, total [as Fe]	MO MIN	report only	all year
DBCSW4	Iron, total [as Fe]	MO AVG	report only	all year
DBCSW4	Iron, total [as Fe]	MO MAX	report only	all year
DBCSW4	Lead, total [as Pb]	MO MAX	report only	all year
DBCSW4	Manganese, total [as Mn]	MO MIN	report only	all year
DBCSW4	Manganese, total [as Mn]	MO AVG	report only	all year
DBCSW4	Manganese, total [as Mn]	MO MAX	report only	all year
DBCSW4	Nickel, total [as Ni]	MO MAX	report only	all year
DBCSW4	Zinc, total [as Zn]	MO MAX	report only	all year
DBCSW4	Aluminum, total [as Al]	MO MIN	report only	all year
DBCSW4	Aluminum, total [as Al]	MO AVG	report only	all year
DBCSW4	Aluminum, total [as Al]	MO MAX	report only	all year
DBCSW4	Aluminum, dissolved [as Al]	MO MIN	report only	all year
DBCSW4	Aluminum, dissolved [as Al]	MO AVG	report only	all year
DBCSW4	Aluminum, dissolved [as Al]	MO MAX	report only	all year
DBCSW4	Solids, total dissolved	MO MIN	report only	all year
DBCSW4	Solids, total dissolved	MO AVG	report only	all year
DBCSW4	Solids, total dissolved	MO MAX	report only	all year
DBCSW4	Mercury, total recoverable	MO MAX	report only	all year
DMRSW2	Stream flow, instantaneous	MO AVG	report only	all year
DMRSW2	Stream flow, instantaneous	MO MAX	report only	all year
DMRSW2	pH	MO MIN	report only	all year
DMRSW2	pH	MO MAX	report only	all year
DMRSW2	Hardness, total [as CaCO3]	MO MAX	report only	all year
DMRSW2	Arsenic, total recoverable	MO MAX	report only	all year
DMRSW2	Selenium, total recoverable	MO MAX	report only	all year
DMRSW2	Barium, total recoverable	MO MAX	report only	all year
DMRSW2	Copper, total [as Cu]	MO MAX	report only	all year
DMRSW2	Iron, total [as Fe]	MO AVG	report only	all year
DMRSW2	Iron, total [as Fe]	MO MAX	report only	all year
DMRSW2	Lead, total [as Pb]	MO MAX	report only	all year
DMRSW2	Manganese, total [as Mn]	MO MIN	report only	all year
DMRSW2	Manganese, total [as Mn]	MO AVG	report only	all year
DMRSW2	Manganese, total [as Mn]	MO MAX	report only	all year
DMRSW2	Nickel, total [as Ni]	MO MAX	report only	all year
DMRSW2	Zinc, total [as Zn]	MO MAX	report only	all year
DMRSW2	Aluminum, total [as Al]	MO MIN	report only	all year
DMRSW2	Aluminum, total [as Al]	MO AVG	report only	all year
DMRSW2	Aluminum, total [as Al]	MO MAX	report only	all year
DMRSW2	Aluminum, dissolved [as Al]	MO MIN	report only	all year
DMRSW2	Aluminum, dissolved [as Al]	MO AVG	report only	all year
DMRSW2	Aluminum, dissolved [as Al]	MO MAX	report only	all year
DMRSW2	Mercury, total recoverable	MO MAX	report only	all year
RM-6	Flow rate	MO AVG	report only	all year
RM-6	Flow rate	MO MAX	report only	all year
RM-6	Acidity, total [as CaCO3]	MO MIN	report only	all year
RM-6	Acidity, total [as CaCO3]	MO AVG	report only	all year
RM-6	Acidity, total [as CaCO3]	MO MAX	report only	all year
RM-6	Acidity, total [as CaCO3]	MO AVG	report only	all year
RM-6	Acidity, total [as CaCO3]	MO MAX	report only	all year
RM-6	Hardness, total [as CaCO3]	MO MAX	report only	all year
RM-6	Arsenic, total recoverable	MO MAX	report only	all year
RM-6	Selenium, total recoverable	MO MAX	report only	all year
RM-6	Barium, total recoverable	MO MAX	report only	all year
RM-6	Copper, total [as Cu]	MO MAX	report only	all year
RM-6	Iron, total [as Fe]	MO MIN	report only	all year
RM-6	Iron, total [as Fe]	MO AVG	report only	all year
RM-6	Iron, total [as Fe]	MO MAX	report only	all year
RM-6	Iron, total [as Fe]	MO AVG	report only	all year
RM-6	Iron, total [as Fe]	MO MAX	report only	all year
RM-6	Lead, total [as Pb]	MO MAX	report only	all year
RM-6	Manganese, total [as Mn]	MO MIN	report only	all year
RM-6	Manganese, total [as Mn]	MO AVG	report only	all year
RM-6	Manganese, total [as Mn]	MO MAX	report only	all year
RM-6	Manganese, total [as Mn]	MO AVG	report only	all year
RM-6	Manganese, total [as Mn]	MO MAX	report only	all year
RM-6	Zinc, total [as Zn]	MO MAX	report only	all year
RM-6	Mercury, total recoverable	MO MAX	report only	all year
UBCSW7	Stream flow, instantaneous	MO AVG	report only	all year
UBCSW7	Stream flow, instantaneous	MO MAX	report only	all year
UBCSW7	Specific conductance	MO MIN	report only	all year
UBCSW7	Specific conductance	MO AVG	report only	all year
UBCSW7	Specific conductance	MO MAX	report only	all year
UBCSW7	pH	MO MIN	report only	all year
UBCSW7	pH	MO MAX	report only	all year
UBCSW7	Hardness, total [as CaCO3]	MO MAX	report only	all year
UBCSW7	Sulfate, total [as SO4]	MO MIN	report only	all year
UBCSW7	Sulfate, total [as SO4]	MO AVG	report only	all year
UBCSW7	Sulfate, total [as SO4]	MO MAX	report only	all year
UBCSW7	Arsenic, total recoverable	MO MAX	report only	all year
UBCSW7	Selenium, total recoverable	MO MAX	report only	all year
UBCSW7	Barium, total recoverable	MO MAX	report only	all year
UBCSW7	Copper, total [as Cu]	MO MAX	report only	all year
UBCSW7	Iron, total [as Fe]	MO MIN	report only	all year
UBCSW7	Iron, total [as Fe]	MO AVG	report only	all year
UBCSW7	Iron, total [as Fe]	MO MAX	report only	all year
UBCSW7	Lead, total [as Pb]	MO MAX	report only	all year
UBCSW7	Manganese, total [as Mn]	MO MIN	report only	all year
UBCSW7	Manganese, total [as Mn]	MO AVG	report only	all year
UBCSW7	Manganese, total [as Mn]	MO MAX	report only	all year
UBCSW7	Nickel, total [as Ni]	MO MAX	report only	all year
UBCSW7	Zinc, total [as Zn]	MO MAX	report only	all year
UBCSW7	Aluminum, total [as Al]	MO MIN	report only	all year
UBCSW7	Aluminum, total [as Al]	MO AVG	report only	all year
UBCSW7	Aluminum, total [as Al]	MO MAX	report only	all year
UBCSW7	Aluminum, dissolved [as Al]	MO MIN	report only	all year
UBCSW7	Aluminum, dissolved [as Al]	MO AVG	report only	all year
UBCSW7	Aluminum, dissolved [as Al]	MO MAX	report only	all year
UBCSW7	Solids, total dissolved	MO MIN	report only	all year
UBCSW7	Solids, total dissolved	MO AVG	report only	all year
UBCSW7	Solids, total dissolved	MO MAX	report only	all year
UBCSW7	Mercury, total recoverable	MO MAX	report only	all year
UMRSW1	Stream flow, instantaneous	MO AVG	report only	all year
UMRSW1	Stream flow, instantaneous	MO MAX	report only	all year
UMRSW1	pH	MO MIN	report only	all year
UMRSW1	pH	MO MAX	report only	all year
UMRSW1	Hardness, total [as CaCO3]	MO MAX	report only	all year
UMRSW1	Arsenic, total recoverable	MO MAX	report only	all year
UMRSW1	Selenium, total recoverable	MO MAX	report only	all year
UMRSW1	Barium, total recoverable	MO MAX	report only	all year
UMRSW1	Copper, total [as Cu]	MO MAX	report only	all year
UMRSW1	Iron, total [as Fe]	MO MIN	report only	all year
UMRSW1	Iron, total [as Fe]	MO AVG	report only	all year
UMRSW1	Iron, total [as Fe]	MO MAX	report only	all year
UMRSW1	Lead, total [as Pb]	MO MAX	report only	all year
UMRSW1	Manganese, total [as Mn]	MO MIN	report only	all year
UMRSW1	Manganese, total [as Mn]	MO AVG	report only	all year
UMRSW1	Manganese, total [as Mn]	MO MAX	report only	all year
UMRSW1	Nickel, total [as Ni]	MO MAX	report only	all year
UMRSW1	Zinc, total [as Zn]	MO MAX	report only	all year
UMRSW1	Aluminum, total [as Al]	MO MIN	report only	all year
UMRSW1	Aluminum, total [as Al]	MO AVG	report only	all year
UMRSW1	Aluminum, total [as Al]	MO MAX	report only	all year
UMRSW1	Aluminum, dissolved [as Al]	MO MIN	report only	all year
UMRSW1	Aluminum, dissolved [as Al]	MO AVG	report only	all year
UMRSW1	Aluminum, dissolved [as Al]	MO MAX	report only	all year
UMRSW1	Mercury, total recoverable	MO MAX	report only	all year