MARION WASTEWATER TREATMENT FA

NPDES permit WI0020770 · Minor POTW · expired, 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 expired: 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

2values over a limit
11required values missing, on 7 form(s)
6of 20 forms filed late

Last period with anything received: 2026-06-30. Most often over: Nitrogen, ammonia total [as N] (2).

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 (61)

OutfallParameterStatisticLimitMonths
003Temperature, water deg. fahrenheitDAILY MX report only all year
003Oxygen, dissolved [DO]DAILY MN >= 7 mg/L all year
003BOD, 5-day, 20 deg. CWKLY AVG <= 11 mg/L May, Jun, Jul, Aug, Sep, Oct
003BOD, 5-day, 20 deg. CWKLY AVG <= 18 mg/L Jan, Feb, Mar, Apr, Nov, Dec
003BOD, 5-day, 20 deg. CMO AVG <= 11 mg/L May, Jun, Jul, Aug, Sep, Oct
003BOD, 5-day, 20 deg. CMO AVG <= 18 mg/L Jan, Feb, Mar, Apr, Nov, Dec
003BOD, 5-day, 20 deg. CDAILY MX report only May, Jun, Jul, Aug, Sep, Oct
003BOD, 5-day, 20 deg. CWKLY AVG <= 36 lb/d May, Jun, Jul, Aug, Sep, Oct
003BOD, 5-day, 20 deg. CWKLY AVG <= 59 lb/d Jan, Feb, Mar, Apr, Nov, Dec
003BOD, 5-day, 20 deg. CDAILY MX report only May, Jun, Jul, Aug, Sep, Oct
003pHDAILY MN >= 6 SU all year
003pHDAILY MX <= 9 SU all year
003Solids, total suspendedWKLY AVG <= 11 mg/L May, Jun, Jul, Aug, Sep, Oct
003Solids, total suspendedWKLY AVG <= 18 mg/L Jan, Feb, Mar, Apr, Nov, Dec
003Solids, total suspendedMO AVG <= 11 mg/L May, Jun, Jul, Aug, Sep, Oct
003Solids, total suspendedMO AVG <= 18 mg/L Jan, Feb, Mar, Apr, Nov, Dec
003Solids, total suspendedDAILY MX report only May, Jun, Jul, Aug, Sep, Oct
003Nitrogen, ammonia total [as N]WKLY AVG <= 5.2 mg/L all year
003Nitrogen, ammonia total [as N]MO AVG <= 5.2 mg/L all year
003Nitrogen, ammonia total [as N]DAILY MX <= 5.2 mg/L all year
003Phosphorus, total [as P]MO AVG <= 2.3 mg/L all year
003Phosphorus, total [as P]DAILY MX report only all year
003Chloride [as Cl]WKLY AVG <= 1100 mg/L Jan, Feb, Jul, Aug, Sep
003Chloride [as Cl]WKLY AVG <= 1200 mg/L Jun, Oct
003Chloride [as Cl]WKLY AVG <= 1200 mg/L Nov
003Chloride [as Cl]WKLY AVG <= 1100 mg/L Dec
003Chloride [as Cl]WKLY AVG <= 1100 mg/L Mar
003Chloride [as Cl]MO AVG report only Jan, Feb, Jul, Aug, Sep
003Chloride [as Cl]MO AVG <= 1200 mg/L Jun, Oct
003Chloride [as Cl]MO AVG <= 1200 mg/L Nov
003Chloride [as Cl]MO AVG <= 1100 mg/L Dec
003Chloride [as Cl]MO AVG <= 1100 mg/L Mar
003Chloride [as Cl]MO AVG report only Apr, May
003Chloride [as Cl]DAILY MX report only Jan, Feb, Jul, Aug, Sep
003Chloride [as Cl]DAILY MX report only Jun, Oct
003Chloride [as Cl]DAILY MX report only Nov
003Chloride [as Cl]DAILY MX report only Dec
003Chloride [as Cl]DAILY MX report only Mar
003Chloride [as Cl]DAILY MX <= 1500 mg/L Apr, May
003Chloride [as Cl]MO AVG report only Jan, Feb, Jul, Aug, Sep
003Chloride [as Cl]WKLY AVG <= 3900 lb/d Jun, Oct
003Chloride [as Cl]WKLY AVG <= 4100 lb/d Nov
003Chloride [as Cl]WKLY AVG <= 3800 lb/d Dec
003Chloride [as Cl]WKLY AVG <= 3700 lb/d Mar
003Chloride [as Cl]MO AVG report only Apr, May
003Chloride [as Cl]DAILY MX report only Jan, Feb, Jul, Aug, Sep
003Chloride [as Cl]DAILY MX report only Jun, Oct
003Chloride [as Cl]DAILY MX report only Nov
003Chloride [as Cl]DAILY MX report only Dec
003Chloride [as Cl]DAILY MX report only Mar
003Chloride [as Cl]DAILY MX report only Apr, May
003Flow, in conduit or thru treatment plantMO AVG report only all year
003Flow, in conduit or thru treatment plantDAILY MX report only all year
003Coliform, fecal generalWK GEOMN <= 656 #/100mL May, Jun, Jul, Aug, Sep
003Coliform, fecal generalGEO MEAN <= 400 #/100mL May, Jun, Jul, Aug, Sep
703BOD, 5-day, 20 deg. CMO AVG report only all year
703BOD, 5-day, 20 deg. CDAILY MX report only all year
703Solids, total suspendedMO AVG report only all year
703Solids, total suspendedDAILY MX report only all year
703Flow, in conduit or thru treatment plantMO AVG report only all year
703Flow, in conduit or thru treatment plantDAILY MX 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