HAMPDEN COAL, LLC — NPDES permit WV1016881: limits, due date and EPA's record

NPDES permit WV1016881 · Minor NON-POTW · expired, expires 2025-06-24 · EPA's file as of 2026-09-19

This permit expired on 2025-06-24 and is expired: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

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

Last period with anything received: 2026-06-30. Most often over: Aluminum, total [as Al] (10).

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 (105)

Outfall	Parameter	Statistic	Limit	Months
001	Flow rate	MO AVG	report only	all year
001	Flow rate	MO MAX	report only	all year
001	Specific conductance	MO MIN	report only	all year
001	Specific conductance	MO AVG	report only	all year
001	Specific conductance	MO MAX	report only	all year
001	pH	MO MIN	>= 6 SU	all year
001	pH	MO AVG	report only	all year
001	pH	MO MAX	<= 9 SU	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 MAX	<= .5 mL/L	all year
001	Sulfate, total [as SO4]	MO MIN	report only	all year
001	Sulfate, total [as SO4]	MO AVG	report only	all year
001	Sulfate, total [as SO4]	MO MAX	report only	all year
001	Selenium, total recoverable	MO MIN	report only	all year
001	Selenium, total recoverable	MO AVG	report only	all year
001	Selenium, total recoverable	MO MAX	report only	all year
001	Iron, total [as Fe]	MO MIN	report only	all year
001	Iron, total [as Fe]	MO AVG	<= 1.42 mg/L	all year
001	Iron, total [as Fe]	MO MAX	<= 2.46 mg/L	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	<= 3.47 mg/L	all year
001	Aluminum, total [as Al]	MO MIN	report only	all year
001	Aluminum, total [as Al]	MO AVG	<= .43 mg/L	all year
001	Aluminum, total [as Al]	MO MAX	<= .75 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	Solids, total dissolved	MO MIN	report only	all year
001	Solids, total dissolved	MO AVG	report only	all year
001	Solids, total dissolved	MO MAX	report only	all year
005	Flow rate	MO AVG	report only	all year
005	Flow rate	MO MAX	report only	all year
005	Specific conductance	MO MIN	report only	all year
005	Specific conductance	MO AVG	report only	all year
005	Specific conductance	MO MAX	report only	all year
005	pH	MO MIN	>= 6 SU	all year
005	pH	MO MAX	<= 9 SU	all year
005	Solids, total suspended	MO MIN	report only	all year
005	Solids, total suspended	MO AVG	<= 35 mg/L	all year
005	Solids, total suspended	MO MAX	<= 70 mg/L	all year
005	Solids, settleable	MO MIN	report only	all year
005	Solids, settleable	MO AVG	report only	all year
005	Solids, settleable	MO MAX	<= .5 mL/L	all year
005	Sulfate, total [as SO4]	MO MIN	report only	all year
005	Sulfate, total [as SO4]	MO AVG	report only	all year
005	Sulfate, total [as SO4]	MO MAX	report only	all year
005	Selenium, total recoverable	MO MIN	report only	all year
005	Selenium, total recoverable	MO AVG	report only	all year
005	Selenium, total recoverable	MO MAX	report only	all year
005	Iron, total [as Fe]	MO MIN	report only	all year
005	Iron, total [as Fe]	MO AVG	<= 2.73 mg/L	all year
005	Iron, total [as Fe]	MO MAX	<= 4.73 mg/L	all year
005	Manganese, total [as Mn]	MO MIN	report only	all year
005	Manganese, total [as Mn]	MO AVG	<= 2 mg/L	all year
005	Manganese, total [as Mn]	MO MAX	<= 3.47 mg/L	all year
005	Aluminum, total [as Al]	MO MIN	report only	all year
005	Aluminum, total [as Al]	MO AVG	<= .43 mg/L	all year
005	Aluminum, total [as Al]	MO MAX	<= .75 mg/L	all year
005	Aluminum, dissolved [as Al]	MO MIN	report only	all year
005	Aluminum, dissolved [as Al]	MO AVG	report only	all year
005	Aluminum, dissolved [as Al]	MO MAX	report only	all year
005	Solids, total dissolved	MO MIN	report only	all year
005	Solids, total dissolved	MO AVG	report only	all year
005	Solids, total dissolved	MO MAX	report only	all year
DHB	Stream flow, instantaneous	MO MAX	report only	all year
DHB	Specific conductance	MO AVG	report only	all year
DHB	Specific conductance	MO MAX	report only	all year
DHB	pH	MO MIN	report only	all year
DHB	pH	MO AVG	report only	all year
DHB	pH	MO MAX	report only	all year
DHB	Sulfate, total [as SO4]	MO AVG	report only	all year
DHB	Sulfate, total [as SO4]	MO MAX	report only	all year
DHB	Selenium, total recoverable	MO MIN	report only	all year
DHB	Selenium, total recoverable	MO AVG	report only	all year
DHB	Selenium, total recoverable	MO MAX	report only	all year
DHB	Iron, total [as Fe]	MO MAX	report only	all year
DHB	Manganese, total [as Mn]	MO MAX	report only	all year
DHB	Aluminum, total [as Al]	MO MAX	report only	all year
DHB	Solids, total dissolved	MO AVG	report only	all year
DHB	Solids, total dissolved	MO MAX	report only	all year
DSB	Stream flow, instantaneous	MO AVG	report only	all year
DSB	Stream flow, instantaneous	MO MAX	report only	all year
DSB	Specific conductance	MO AVG	report only	all year
DSB	Specific conductance	MO MAX	report only	all year
DSB	pH	MO MIN	report only	all year
DSB	pH	MO MAX	report only	all year
DSB	Sulfate, total [as SO4]	MO AVG	report only	all year
DSB	Sulfate, total [as SO4]	MO MAX	report only	all year
DSB	Selenium, total recoverable	MO MIN	report only	all year
DSB	Selenium, total recoverable	MO AVG	report only	all year
DSB	Selenium, total recoverable	MO MAX	report only	all year
DSB	Iron, total [as Fe]	MO MIN	report only	all year
DSB	Iron, total [as Fe]	MO AVG	report only	all year
DSB	Iron, total [as Fe]	MO MAX	report only	all year
DSB	Aluminum, total [as Al]	MO MIN	report only	all year
DSB	Aluminum, total [as Al]	MO AVG	report only	all year
DSB	Aluminum, total [as Al]	MO MAX	report only	all year
DSB	Aluminum, dissolved [as Al]	MO MIN	report only	all year
DSB	Aluminum, dissolved [as Al]	MO AVG	report only	all year
DSB	Aluminum, dissolved [as Al]	MO MAX	report only	all year
DSB	Solids, total dissolved	MO AVG	report only	all year
DSB	Solids, total dissolved	MO MAX	report only	all year