General Motors LLC

NPDES permit MI0001911 · Minor NON-POTW · administratively continued, expires 2018-10-01 · 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 2018-10-01 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

3values over a limit
25required values missing, on 11 form(s)
0of 67 forms filed late

Last period with anything received: 2026-07-31. Most often over: pH (2), Benzene (1).

Reporting

Reports are due about 21 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (154)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]DAILY MN >= 5 mg/L Jan, Feb, Mar, Apr, Dec
001Oxygen, dissolved [DO]DAILY MN >= 5 mg/L Jan, Feb, Mar, Apr, Dec
001Oxygen, dissolved [DO]DAILY MN >= 6 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
001pHDAILY MN >= 6.5 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspendedMO AVG <= 15 mg/L all year
001Solids, total suspendedDAILY MX <= 20 mg/L all year
001Solids, total suspendedMO AVG <= 56 lb/d all year
001Solids, total suspendedDAILY MX <= 75 lb/d all year
001Nitrogen, ammonia total [as N]MX MO AV report only Apr
001Nitrogen, ammonia total [as N]MO AVG report only Apr
001Nitrogen, ammonia total [as N]MO AVG report only Jan, Feb, Mar, Dec
001Nitrogen, ammonia total [as N]MO AVG <= .5 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
001Nitrogen, ammonia total [as N]DAILY MX <= 3 mg/L Apr
001Nitrogen, ammonia total [as N]DAILY MX <= 3 mg/L Apr
001Nitrogen, ammonia total [as N]DAILY MX <= 9 mg/L Jan, Feb, Mar, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 2 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
001Nitrogen, ammonia total [as N]MX MO AV report only Apr
001Nitrogen, ammonia total [as N]MO AVG report only Apr
001Nitrogen, ammonia total [as N]MO AVG report only Jan, Feb, Mar, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 2 lb/d May, Jun, Jul, Aug, Sep, Oct, Nov
001Nitrogen, ammonia total [as N]DAILY MX <= 11 lb/d Apr
001Nitrogen, ammonia total [as N]DAILY MX <= 11 lb/d Apr
001Nitrogen, ammonia total [as N]DAILY MX <= 35 lb/d Jan, Feb, Mar, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 8 lb/d May, Jun, Jul, Aug, Sep, Oct, Nov
001Phosphorus, total [as P]MO AVG report only all year
001Phosphorus, total [as P]MO AVG report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Phosphorus, total [as P]DAILY MX <= 1 mg/L all year
001Phosphorus, total [as P]MO AVG report only all year
001Phosphorus, total [as P]MO AVG report only all year
001Phosphorus, total [as P]MO AVG report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Phosphorus, total [as P]DAILY MX <= 2.2 lb/d all year
001Phosphorus, total [as P]ANNL MAX <= 340 lb/yr all year
001Phosphorus, total [as P]AL report only all year
001Phosphorus, total [as P]MA report only all year
001Phosphorus, total [as P]MA report only all year
001Methyl tert-butyl ether [MTBE]DAILY MX <= 100 ug/L all year
001Benzene, ethylbenzene, toluene, xylene combinationDAILY MX <= 20 ug/L all year
001Benzene, ethylbenzene, toluene, xylene combinationDAILY MX <= 20 ug/L all year
001Benzene, ethylbenzene, toluene, xylene combinationMO AVG report only all year
001Benzene, ethylbenzene, toluene, xylene combinationDAILY MX report only all year
001Benzene, ethylbenzene, toluene, xylene combinationDAILY MX report only all year
0011,2-DichloroethaneDAILY MX <= 5 ug/L all year
0011,2-DichloroethaneDAILY MX report only all year
001BenzeneDAILY MX <= 5 ug/L all year
001BenzeneDAILY MX <= 5 ug/L all year
001BenzeneMO AVG report only all year
001BenzeneDAILY MX report only all year
001BenzeneDAILY MX report only all year
001BenzeneMO AVG report only all year
001BenzeneMO AVG report only all year
001BenzeneDAILY MX report only all year
001BenzeneDAILY MX report only all year
001BenzeneMO AVG report only all year
001BenzeneMO AVG report only all year
001BenzeneDAILY MX report only all year
001BenzeneDAILY MX report only all year
001Equipment inspection - visualMO TOTAL report only all year
001Equipment inspection - visualVALUE report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantMO AVG 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
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Solids, total dissolvedMO AVG report only all year
001Solids, total dissolvedMO AVG report only all year
001Solids, total dissolvedDAILY MX report only all year
001Solids, total dissolvedDAILY MX report only all year
001Solids, total dissolvedDAILY MX report only all year
001Coliform, fecal generalMO GEOMN <= 200 #/100mL all year
001Coliform, fecal generalDAILY MX <= 400 #/100mL all year
001BOD, carbonaceous [5 day, 20 C]MX MO AV <= 9 mg/L Apr
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 9 mg/L Apr
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 24 mg/L Jan, Feb, Mar, Dec
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 4 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
001BOD, carbonaceous [5 day, 20 C]DAILY MX <= 13 mg/L Apr
001BOD, carbonaceous [5 day, 20 C]DAILY MX <= 13 mg/L Apr
001BOD, carbonaceous [5 day, 20 C]DAILY MX <= 36 mg/L Jan, Feb, Mar, Dec
001BOD, carbonaceous [5 day, 20 C]DAILY MX <= 10 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
001BOD, carbonaceous [5 day, 20 C]MX MO AV <= 34 lb/d Apr
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 34 lb/d Apr
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 90 lb/d Jan, Feb, Mar, Dec
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 15 lb/d May, Jun, Jul, Aug, Sep, Oct, Nov
001BOD, carbonaceous [5 day, 20 C]DAILY MX <= 49 lb/d Apr
001BOD, carbonaceous [5 day, 20 C]DAILY MX <= 49 lb/d Apr
001BOD, carbonaceous [5 day, 20 C]DAILY MX <= 140 lb/d Jan, Feb, Mar, Dec
001BOD, carbonaceous [5 day, 20 C]DAILY MX <= 38 lb/d May, Jun, Jul, Aug, Sep, Oct, Nov
001Area inspection visualVALUE report only all year
001Outfall observation,visual, y/n responseVALUE report only all year
002Solids, total suspendedDAILY MX report only all year
002Solids, total suspendedDAILY MX report only all year
002Oil & GreaseDAILY MX report only all year
002Phosphorus, total [as P]DAILY MX report only Aug
002Phosphorus, total [as P]DAILY MX report only Aug
002Flow, in conduit or thru treatment plantMO AVG report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002Outfall observation,visual, y/n responseVALUE report only Aug
003Oil & GreaseDAILY MX report only all year
003Phosphorus, total [as P]DAILY MX report only Aug
003Phosphorus, total [as P]DAILY MX report only Aug
003Flow, in conduit or thru treatment plantMO AVG report only all year
003Flow, in conduit or thru treatment plantDAILY MX report only all year
003Outfall observation,visual, y/n responseVALUE report only Aug
SLDSolids, totalMO MIN report only all year
SLDSolids, totalMO AVG report only all year
SLDSolids, totalMO MAX report only all year
SLDArsenic, dry weightMO MIN report only all year
SLDArsenic, dry weightMO AVG report only all year
SLDArsenic, dry weightMO MAX <= 75 mg/kg all year
SLDSelenium, dry weightMO MIN report only all year
SLDSelenium, dry weightMO AVG report only all year
SLDSelenium, dry weightMO MAX <= 100 mg/kg all year
SLDCopper, dry weightMO MIN report only all year
SLDCopper, dry weightMO AVG report only all year
SLDCopper, dry weightMO MAX <= 4300 mg/kg all year
SLDCadmium, dry weightMO MIN report only all year
SLDCadmium, dry weightMO AVG report only all year
SLDCadmium, dry weightMO MAX <= 85 mg/kg all year
SLDNitrogen, total KjeldahlMO MIN report only all year
SLDNitrogen, total KjeldahlMO AVG report only all year
SLDNitrogen, total KjeldahlMO MAX report only all year
SLDMolybdenum, sludge, total, dry weight [as Mo]MO MIN report only all year
SLDMolybdenum, sludge, total, dry weight [as Mo]MO AVG report only all year
SLDMolybdenum, sludge, total, dry weight [as Mo]MO MAX <= 75 mg/kg all year
SLDZinc, sludge, total, dry weight [as Zn]MO MIN report only all year
SLDZinc, sludge, total, dry weight [as Zn]MO AVG report only all year
SLDZinc, sludge, total, dry weight [as Zn]MO MAX <= 7500 mg/kg all year
SLDLead, sludge, total, dry weight [as Pb]MO MIN report only all year
SLDLead, sludge, total, dry weight [as Pb]MO AVG report only all year
SLDLead, sludge, total, dry weight [as Pb]MO MAX <= 840 mg/kg all year
SLDNickel, sludge, total, dry weight [as Ni]MO MIN report only all year
SLDNickel, sludge, total, dry weight [as Ni]MO AVG report only all year
SLDNickel, sludge, total, dry weight [as Ni]MO MAX <= 420 mg/kg all year
SLDNitrogen, sludge, total, dry weight [as N]MO MIN report only all year
SLDNitrogen, sludge, total, dry weight [as N]MO AVG report only all year
SLDNitrogen, sludge, total, dry weight [as N]MO MAX report only all year
SLDMercury, sludge, total, dry weight [as Hg]MO MIN report only all year
SLDMercury, sludge, total, dry weight [as Hg]MO AVG report only all year
SLDMercury, sludge, total, dry weight [as Hg]MO MAX <= 57 mg/kg all year
SLDPotassium, sludge, total, dry weight [as K]MO MIN report only all year
SLDPotassium, sludge, total, dry weight [as K]MO AVG report only all year
SLDPotassium, sludge, total, dry weight [as K]MO MAX report only all year
SLDPhosphorus, sludge, total, dry weight [as P]MO MIN report only all year
SLDPhosphorus, sludge, total, dry weight [as P]MO AVG report only all year
SLDPhosphorus, sludge, total, dry weight [as P]MO MAX 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