THE MASCHHOFFS LLC

NPDES permit IL0079359 · Minor NON-POTW · effective, expires 2028-07-31 · 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 22 forms filed late

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

Reporting

Reports are due about 25 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (40)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitMO MAX <= 63 deg F Jan, Feb, Mar, Dec
001Temperature, water deg. fahrenheitMO MAX <= 93 deg F Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
001BOD, 5-day, 20 deg. C30DA AVG report only all year
001BOD, 5-day, 20 deg. CDAILY MX report only all year
001pHMO MIN >= 6.5 SU all year
001pHMO MAX <= 9 SU all year
001Solids, total suspended30DA AVG report only all year
001Solids, total suspendedDAILY MX report only all year
001Oil & Grease30DA AVG <= 15 mg/L all year
001Oil & GreaseDAILY MX <= 30 mg/L all year
001Nitrogen, ammonia total [as N]30DA AVG <= 1.7 mg/L Mar, Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]30DA AVG <= 1.6 mg/L Jun, Jul, Aug
001Nitrogen, ammonia total [as N]30DA AVG <= 4 mg/L Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 7.4 mg/L Mar, Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 14.4 mg/L Jun, Jul, Aug
001Nitrogen, ammonia total [as N]DAILY MX <= 6.2 mg/L Jan, Feb, Nov, Dec
001Phosphorus, total [as P]30DA AVG report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Hardness, total [as CaCO3]30DA AVG report only all year
001Hardness, total [as CaCO3]DAILY MX report only all year
001Chloride [as Cl]DAILY MX <= 500 mg/L all year
001Sulfate, total [as SO4]30DA AVG report only all year
001Sulfate, total [as SO4]DAILY MX report only all year
001Temperature, length of excursionANNL TOT <= 87 hr/12mo 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 residualDAILY MX <= .05 mg/L all year
A01BOD, 5-day, 20 deg. C30DA AVG <= 30 mg/L all year
A01BOD, 5-day, 20 deg. CDAILY MX <= 60 mg/L all year
A01BOD, 5-day, 20 deg. C30DA AVG <= .1 lb/d all year
A01BOD, 5-day, 20 deg. CDAILY MX <= .3 lb/d all year
A01pHMO MIN >= 6 SU all year
A01pHMO MAX <= 9 SU all year
A01Solids, total suspended30DA AVG <= 30 mg/L all year
A01Solids, total suspendedDAILY MX <= 60 mg/L all year
A01Solids, total suspended30DA AVG <= .1 lb/d all year
A01Solids, total suspendedDAILY MX <= .3 lb/d all year
A01Flow, in conduit or thru treatment plantMO AVG report only all year
A01Flow, in conduit or thru treatment plantDAILY MX report only all year
A01Coliform, fecal generalDAILY MX <= 400 #/100mL 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