GMA GARNET (USA) CORP

NPDES permit OR0033812 · Minor NON-POTW · effective, expires 2030-02-28 · 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 11 forms filed late

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

Reporting

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

Limits in force (34)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeMO AVG report only all year
001Temperature, water deg. centigradeDAILY MX report only all year
001Temperature, water deg. centigradeMX 7D AV report only all year
001pHDAILY MN >= 5.9 SU all year
001pHDAILY MX report only all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedDAILY MX <= 60 mg/L all year
001Solids, total suspendedMO AVG <= 250 lb/d all year
001Solids, total suspendedDAILY MX <= 380 lb/d all year
001Chromium, total [as Cr]MO AVG report only all year
001Chromium, total [as Cr]DAILY MX report only all year
001Chromium, total [as Cr]MO AVG <= 2.5 lb/d all year
001Chromium, total [as Cr]DAILY MX <= 4.5 lb/d all year
001Copper, dissolved [as Cu]MO AVG report only all year
001Copper, dissolved [as Cu]DAILY MX report only all year
001Copper, total [as Cu]MO AVG <= .022 mg/L all year
001Copper, total [as Cu]DAILY MX <= .042 mg/L all year
001Iron, total [as Fe]MO AVG <= 7.6 mg/L all year
001Iron, total [as Fe]DAILY MX <= 13 mg/L all year
001Iron, total [as Fe]MO AVG <= 12 lb/d all year
001Iron, total [as Fe]DAILY MX <= 21 lb/d all year
001Manganese, total [as Mn]MO AVG report only all year
001Manganese, total [as Mn]DAILY MX report only all year
001Manganese, total [as Mn]MO AVG <= 13 lb/d all year
001Manganese, total [as Mn]DAILY MX <= 25 lb/d all year
001Nickel, total [as Ni]MO AVG report only all year
001Nickel, total [as Ni]DAILY MX report only all year
001Nickel, total [as Ni]MO AVG <= 1.9 lb/d all year
001Nickel, total [as Ni]DAILY MX <= 3.2 lb/d 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
001Chlorine, total residualMO AVG report only all year
001Chlorine, total residualDAILY MX report only all year
001Mercury, total recoverableQB 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