Maymead Materials, Inc.

NPDES permit TN0066206 · Minor NON-POTW · effective, expires 2029-04-30 · 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)
10of 23 forms filed late

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

Reporting

Reports are due about 15 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (42)

OutfallParameterStatisticLimitMonths
004pHDAILY MN >= 6 SU all year
004pHDAILY MN >= 6 SU all year
004pHDAILY MX <= 9 SU all year
004pHDAILY MX <= 9 SU all year
004Solids, total suspendedMO AVG <= 40 mg/L all year
004Solids, total suspendedMO AVG <= 40 mg/L all year
004Solids, total suspendedDAILY MX <= 40 mg/L all year
004Solids, total suspendedDAILY MX <= 40 mg/L all year
004Flow, in conduit or thru treatment plantMO AVG report only (alert) all year
004Flow, in conduit or thru treatment plantMO AVG report only (alert) all year
004Flow, in conduit or thru treatment plantDAILY MX report only (alert) all year
004Flow, in conduit or thru treatment plantDAILY MX report only (alert) all year
007pHMINIMUM >= 6 SU all year
007pHMINIMUM >= 6 SU all year
007pHMAXIMUM <= 9 SU all year
007pHMAXIMUM <= 9 SU all year
007Solids, total suspendedMO AVG <= 40 mg/L all year
007Solids, total suspendedMO AVG <= 40 mg/L all year
007Solids, total suspendedDAILY MX <= 40 mg/L all year
007Solids, total suspendedDAILY MX <= 40 mg/L all year
007Flow, in conduit or thru treatment plantMO AVG report only all year
007Flow, in conduit or thru treatment plantMO AVG report only all year
007Flow, in conduit or thru treatment plantDAILY MX report only all year
007Flow, in conduit or thru treatment plantDAILY MX report only all year
SW3pHMINIMUM >= 6 SU (alert) all year
SW3pHMAXIMUM <= 9 SU (alert) all year
SW3Solids, total suspendedDAILY MX <= 150 mg/L (alert) all year
SW3Oil & GreaseDAILY MX <= 15 mg/L (alert) all year
SW3Flow, in conduit or thru treatment plantMINIMUM report only (alert) all year
SW3Flow, in conduit or thru treatment plantMAXIMUM report only (alert) all year
SW6pHMINIMUM >= 6 SU (alert) all year
SW6pHMAXIMUM <= 9 SU (alert) all year
SW6Solids, total suspendedDAILY MX <= 150 mg/L (alert) all year
SW6Oil & GreaseDAILY MX <= 15 mg/L (alert) all year
SW6Flow, in conduit or thru treatment plantMINIMUM report only (alert) all year
SW6Flow, in conduit or thru treatment plantMAXIMUM report only (alert) all year
SW8pHMINIMUM >= 6 SU (alert) all year
SW8pHMAXIMUM <= 9 SU (alert) all year
SW8Solids, total suspendedDAILY MX <= 150 mg/L (alert) all year
SW8Oil & GreaseDAILY MX <= 15 mg/L (alert) all year
SW8Flow, in conduit or thru treatment plantMINIMUM report only (alert) all year
SW8Flow, 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