U. S. SILICA COMPANY

NPDES permit WV1023691 · Minor NON-POTW · effective, expires 2030-01-07 · EPA's file as of 2026-09-19

Check this month's numbers before you file

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

0values over a limit
26required values missing, on 2 form(s)
0of 8 forms filed late

Last period with anything received: 2026-06-30.

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 (26)

OutfallParameterStatisticLimitMonths
004Flow rateMO MAX report only all year
004pHMO MIN >= 6 SU all year
004pHMO MAX <= 9 SU all year
004Solids, total suspendedMO MAX <= 70 mg/L all year
004Hardness, total [as CaCO3]MO MAX report only all year
004Cadmium, total [as Cd]MO MAX report only all year
004Nickel, total [as Ni]MO MAX report only all year
004Aluminum, total [as Al]MO MIN report only all year
004Aluminum, total [as Al]MO AVG report only all year
004Aluminum, total [as Al]MO MAX report only all year
004Aluminum, dissolved [as Al]MO MIN report only all year
004Aluminum, dissolved [as Al]MO AVG report only all year
004Aluminum, dissolved [as Al]MO MAX report only all year
005Flow rateMO MAX report only all year
005pHMO MIN >= 6 SU all year
005pHMO MAX <= 9 SU all year
005Solids, total suspendedMO MAX <= 70 mg/L all year
005Hardness, total [as CaCO3]MO MAX report only all year
005Cadmium, total [as Cd]MO MAX report only all year
005Nickel, total [as Ni]MO MAX report only all year
005Aluminum, total [as Al]MO MIN report only all year
005Aluminum, total [as Al]MO AVG report only all year
005Aluminum, total [as Al]MO MAX report only all year
005Aluminum, dissolved [as Al]MO MIN report only all year
005Aluminum, dissolved [as Al]MO AVG report only all year
005Aluminum, dissolved [as Al]MO MAX report only all year

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states