HOOVER STONE QUARRY LLC — NPDES permit PA0278378: limits, due date and EPA's record

NPDES permit PA0278378 · Minor NON-POTW · expired, expires 2024-08-14 · EPA's file as of 2026-09-19

This permit expired on 2024-08-14 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

EPA's file shows no filings for this permit in this window. That is a statement about the file, not about the facility.

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 (23)

Outfall	Parameter	Statistic	Limit	Months
001	pH	INST MIN	>= 6 SU	all year
001	pH	INST MAX	<= 9 SU	all year
001	Alkalinity, total [as CaCO3]	INST MAX	report only	all year
001	Acidity, total [as CaCO3]	INST MAX	report only	all year
001	Solids, total suspended	MO AVG	<= 35 mg/L	all year
001	Solids, total suspended	DAILY MX	<= 70 mg/L	all year
001	Solids, total suspended	INST MAX	<= 90 mg/L	all year
001	Sulfate, total [as SO4]	MO AVG	report only	all year
001	Sulfate, total [as SO4]	DAILY MX	report only	all year
001	Sulfate, total [as SO4]	INST MAX	report only	all year
001	Iron, total [as Fe]	MO AVG	<= 1.5 mg/L	all year
001	Iron, total [as Fe]	DAILY MX	<= 3 mg/L	all year
001	Iron, total [as Fe]	INST MAX	<= 3.7 mg/L	all year
001	Manganese, total [as Mn]	MO AVG	<= 1 mg/L	all year
001	Manganese, total [as Mn]	DAILY MX	<= 2 mg/L	all year
001	Manganese, total [as Mn]	INST MAX	<= 2.5 mg/L	all year
001	Aluminum, total [as Al]	MO AVG	<= .75 mg/L	all year
001	Aluminum, total [as Al]	DAILY MX	<= .75 mg/L	all year
001	Aluminum, total [as Al]	INST MAX	<= .75 mg/L	all year
001	Alkalinity - Acidity [as CaCO3]	INST MIN	>= 0 mg/L	all year
001	Solids, total dissolved	MO AVG	report only	all year
001	Solids, total dissolved	DAILY MX	report only	all year
001	Solids, total dissolved	INST MAX	report only	all year