City of Mountain Grove

NPDES permit MO0042111 · Minor POTW · administratively continued, expires 2024-01-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file

This permit expired on 2024-01-31 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 19 forms filed late

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

Reporting

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

Limits in force (32)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]DAILY MN >= 8 mg/L all year
001Oxygen, dissolved [DO]MO AV MN >= 8 mg/L all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedWKLY AVG <= 45 mg/L all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Oil and grease [soxhlet extr.] tot.DAILY MX report only all year
001Oil and grease [soxhlet extr.] tot.MO AVG report only all year
001Nitrogen, total [as N]DAILY MX report only all year
001Nitrogen, total [as N]MO AVG report only all year
001Nitrogen, ammonia total [as N]DAILY MX report only Jan, Feb, Mar, Oct, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 4.9 mg/L Apr, May, Jun, Jul, Aug, Sep
001Nitrogen, ammonia total [as N]MO AVG report only Jan, Feb, Mar, Oct, Nov, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 1.2 mg/L Apr, May, Jun, Jul, Aug, Sep
001Phosphorus, total [as P]DAILY MX report only all year
001Phosphorus, total [as P]MO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001E. coliDAILY MX <= 126 #/100mL all year
001E. coli30DA GM report only all year
001Toxicity [acute], Ceriodaphnia dubiaDAILY MX report only all year
001Toxicity [acute], Pimephales promelas [Fathead Minnow]DAILY MX report only all year
001BOD, carbonaceous [5 day, 20 C]DAILY MX <= 25 mg/L Apr, May, Jun, Jul, Aug, Sep
001BOD, carbonaceous [5 day, 20 C]DAILY MX <= 37 mg/L Jan, Feb, Mar, Oct, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 18 mg/L Apr, May, Jun, Jul, Aug, Sep
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 27 mg/L Jan, Feb, Mar, Oct, Nov, Dec
001BOD, carbonaceous, percent removalMO AV MN >= 85 % all year
001Solids, suspended percent removalMO AV MN >= 85 % all year
SM1Nitrogen, total [as N]DAILY MX report only all year
SM1Nitrogen, total [as N]MO AVG report only all year
SM1Phosphorus, total [as P]DAILY MX report only all year
SM1Phosphorus, total [as P]MO AVG 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