U. S. SILICA COMPANY

NPDES permit WV0117072 · Minor NON-POTW · effective, expires 2027-10-02 · EPA's file as of 2026-09-19

Check this month's numbers before you file
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.

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

0values over a limit
0required values missing, on 0 form(s)
0of 34 forms filed late

Last period with anything received: 2026-07-31.

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 (35)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]INST MIN report only all year
001pHINST MIN >= 6 SU all year
001pHINST MAX <= 9 SU all year
001Solids, total suspendedMO AVG <= 25 mg/L all year
001Solids, total suspendedDAILY MX <= 45 mg/L all year
001Iron, total recoverableMO AVG <= 1.23 mg/L all year
001Iron, total recoverableDAILY MX <= 2.19 mg/L all year
001Aluminum, total recoverableMO AVG report only all year
001Aluminum, total recoverableMO AVG report only all year
001Aluminum, total recoverableDAILY MX report only all year
001Aluminum, total recoverableDAILY MX report only all year
001Lead, total recoverableMO AVG report only all year
001Lead, total recoverableDAILY MX report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Chemical Oxygen Demand [COD]MO AVG report only all year
001Chemical Oxygen Demand [COD]MO AVG report only all year
001Chemical Oxygen Demand [COD]DAILY MX report only all year
001Chemical Oxygen Demand [COD]DAILY MX report only all year
003pHINST MIN >= 6 SU all year
003pHINST MAX <= 9 SU all year
003Solids, total suspendedMO AVG <= 25 mg/L all year
003Solids, total suspendedDAILY MX <= 45 mg/L all year
003Iron, total recoverableMO AVG <= 1.5 mg/L all year
003Iron, total recoverableDAILY MX <= 2.19 mg/L all year
003Aluminum, total recoverableMO AVG <= .67 mg/L all year
003Aluminum, total recoverableDAILY MX <= 1.35 mg/L all year
003Lead, total recoverableMO AVG report only all year
003Lead, total recoverableDAILY MX report only all year
003Flow, in conduit or thru treatment plantMO AVG report only all year
003Flow, in conduit or thru treatment plantDAILY MX report only all year
003Chemical Oxygen Demand [COD]MO AVG report only all year
003Chemical Oxygen Demand [COD]MO AVG report only all year
003Chemical Oxygen Demand [COD]DAILY MX report only all year
003Chemical Oxygen Demand [COD]DAILY MX 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