L.G. Everist, Inc. (NWIA)

NPDES permit SD0027928 · Minor NON-POTW · administratively continued, expires 2023-06-30 · 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.

This permit expired on 2023-06-30 and is administratively continued: 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

0values over a limit
0required values missing, on 0 form(s)
0of 36 forms filed late

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

Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among SD permits in EPA's filings — check your permit).

Limits in force (39)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheit30DA AVG report only all year
001Temperature, water deg. fahrenheitDAILY MX <= 90 deg F all year
001Flow rate30DA AVG report only all year
001Flow rateDAILY MX report only all year
001pHDAILY MN >= 6.5 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspended30DA AVG <= 25 mg/L all year
001Solids, total suspendedDAILY MX <= 45 mg/L all year
001Oil and grease, hexane extr methodDAILY MX <= 10 mg/L all year
001Floating solids, waste or visible foam-visualDAILY MX <= 0 N=0;Y=1 all year
001Flow, totalMO TOTAL report only all year
001Duration of dischargeMO TOTAL report only all year
001Oil and grease visualDAILY MX <= 0 N=0;Y=1 all year
002Temperature, water deg. fahrenheit30DA AVG report only all year
002Temperature, water deg. fahrenheitDAILY MX <= 90 deg F all year
002Flow rate30DA AVG report only all year
002Flow rateDAILY MX report only all year
002pHDAILY MN >= 6.5 SU all year
002pHDAILY MX <= 9 SU all year
002Solids, total suspended30DA AVG <= 25 mg/L all year
002Solids, total suspendedDAILY MX <= 45 mg/L all year
002Oil and grease, hexane extr methodDAILY MX <= 10 mg/L all year
002Floating solids, waste or visible foam-visualDAILY MX <= 0 N=0;Y=1 all year
002Flow, totalMO TOTAL report only all year
002Duration of dischargeMO TOTAL report only all year
002Oil and grease visualDAILY MX <= 0 N=0;Y=1 all year
003Temperature, water deg. fahrenheit30DA AVG report only all year
003Temperature, water deg. fahrenheitDAILY MX <= 90 deg F all year
003Flow rate30DA AVG report only all year
003Flow rateDAILY MX report only all year
003pHDAILY MN >= 6.5 SU all year
003pHDAILY MX <= 9 SU all year
003Solids, total suspended30DA AVG <= 25 mg/L all year
003Solids, total suspendedDAILY MX <= 45 mg/L all year
003Oil and grease, hexane extr methodDAILY MX <= 10 mg/L all year
003Floating solids, waste or visible foam-visualDAILY MX <= 0 N=0;Y=1 all year
003Flow, totalMO TOTAL report only all year
003Duration of dischargeMO TOTAL report only all year
003Oil and grease visualDAILY MX <= 0 N=0;Y=1 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