KEYSTONE COAL CO — NPDES permit PA0610691: limits, due date and EPA's record

NPDES permit PA0610691 · Minor NON-POTW · expired, expires 2025-01-23 · EPA's file as of 2026-09-19

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.

This permit expired on 2025-01-23 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

Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among PA permits in EPA's filings — check your permit).

Limits in force (21)

Outfall	Parameter	Statistic	Limit	Months
017	Temperature, water deg. centigrade	INST MAX	report only	all year
017	Specific conductance	INST MAX	report only	all year
017	pH	INST MIN	>= 6 SU	all year
017	pH	INST MAX	<= 9 SU	all year
017	Alkalinity, total [as CaCO3]	INST MAX	report only	all year
017	Acidity, total [as CaCO3]	INST MAX	report only	all year
017	Solids, total suspended	MO AVG	<= 35 mg/L	all year
017	Solids, total suspended	DAILY MX	<= 70 mg/L	all year
017	Solids, total suspended	INST MAX	<= 90 mg/L	all year
017	Sulfate, total [as SO4]	INST MAX	report only	all year
017	Iron, total [as Fe]	MO AVG	<= 3 mg/L	all year
017	Iron, total [as Fe]	DAILY MX	<= 6 mg/L	all year
017	Iron, total [as Fe]	INST MAX	<= 7 mg/L	all year
017	Manganese, total [as Mn]	MO AVG	<= 2 mg/L	all year
017	Manganese, total [as Mn]	DAILY MX	<= 4 mg/L	all year
017	Manganese, total [as Mn]	INST MAX	<= 5 mg/L	all year
017	Aluminum, total [as Al]	MO AVG	<= 2 mg/L	all year
017	Aluminum, total [as Al]	DAILY MX	<= 4 mg/L	all year
017	Aluminum, total [as Al]	INST MAX	<= 5 mg/L	all year
017	Flow, in conduit or thru treatment plant	INST MAX	report only	all year
017	Alkalinity - Acidity [as CaCO3]	INST MIN	>= 0 mg/L	all year