Lhoist North America of TN, LLC dba Spinks Clay Co.

NPDES permit TN0072265 · Minor NON-POTW · effective, expires 2028-06-30 · 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 25 forms filed late

Last period with anything received: 2026-08-31.

Reporting

Reports are due about 15 days after each monitoring period ends (the most common figure among TN permits in EPA's filings — check your permit).

Limits in force (18)

OutfallParameterStatisticLimitMonths
291pHMINIMUM >= 6 SU all year
291pHMAXIMUM <= 9 SU all year
291Solids, total suspendedMO AVG <= 35 mg/L all year
291Solids, total suspendedDAILY MX <= 70 mg/L all year
291Flow, in conduit or thru treatment plantMO AVG report only all year
291Flow, in conduit or thru treatment plantDAILY MX report only all year
292pHMINIMUM >= 6 SU all year
292pHMAXIMUM <= 9 SU all year
292Solids, total suspendedMO AVG <= 35 mg/L all year
292Solids, total suspendedDAILY MX <= 70 mg/L all year
292Flow, in conduit or thru treatment plantMO AVG report only all year
292Flow, in conduit or thru treatment plantDAILY MX report only all year
SW01pHMINIMUM >= 6 SU (alert) all year
SW01pHMAXIMUM <= 9 SU (alert) all year
SW01Solids, total suspendedDAILY MX <= 150 mg/L (alert) all year
SW01Oil & GreaseDAILY MX <= 15 mg/L (alert) all year
SW01Flow, in conduit or thru treatment plantMINIMUM report only (alert) all year
SW01Flow, in conduit or thru treatment plantMAXIMUM report only (alert) 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