City of Highlandville

NPDES permit MO0128091 · Minor POTW · administratively continued, expires 2025-06-30 · EPA's file as of 2026-09-19

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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 2025-06-30 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

21values over a limit
14required values missing, on 7 form(s)
2of 30 forms filed late

Last period with anything received: 2026-07-31. Most often over: E. coli (7), Nitrogen, ammonia total [as N] (7), Phosphorus, total [as P] (7).

Reporting

Reports are due about 28 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (52)

OutfallParameterStatisticLimitMonths
001BOD, 5-day, 20 deg. CWKLY AVG <= 15 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 10 mg/L all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedWKLY AVG <= 20 mg/L all year
001Solids, total suspendedMO AVG <= 15 mg/L all year
001Oil and grease [soxhlet extr.] tot.DAILY MX <= 15 mg/L all year
001Oil and grease [soxhlet extr.] tot.MO AVG <= 10 mg/L all year
001Nitrogen, ammonia total [as N]DAILY MX <= 12.1 mg/L Jun
001Nitrogen, ammonia total [as N]DAILY MX <= 10.1 mg/L Aug
001Nitrogen, ammonia total [as N]DAILY MX <= 12.1 mg/L Apr
001Nitrogen, ammonia total [as N]DAILY MX <= 10.1 mg/L Feb
001Nitrogen, ammonia total [as N]DAILY MX <= 12.1 mg/L May
001Nitrogen, ammonia total [as N]DAILY MX <= 12.1 mg/L Jan, Mar, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 12.1 mg/L Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 12.1 mg/L Sep
001Nitrogen, ammonia total [as N]DAILY MX <= 12.1 mg/L Jul
001Nitrogen, ammonia total [as N]MO AVG <= 1.7 mg/L Jun
001Nitrogen, ammonia total [as N]MO AVG <= 1.3 mg/L Aug
001Nitrogen, ammonia total [as N]MO AVG <= 2.7 mg/L Apr
001Nitrogen, ammonia total [as N]MO AVG <= 2.7 mg/L Feb
001Nitrogen, ammonia total [as N]MO AVG <= 2.2 mg/L May
001Nitrogen, ammonia total [as N]MO AVG <= 3.1 mg/L Jan, Mar, Nov, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 2.5 mg/L Oct
001Nitrogen, ammonia total [as N]MO AVG <= 1.8 mg/L Sep
001Nitrogen, ammonia total [as N]MO AVG <= 1.5 mg/L Jul
001Nitrogen, Kjeldahl, total [as N]DAILY MX report only all year
001Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
001Nitrite + Nitrate total [as N]DAILY MX report only all year
001Nitrite + Nitrate total [as N]MO AVG report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Phosphorus, total [as P]MO AVG <= .5 mg/L all year
001Iron, total recoverableDAILY MX report only all year
001Iron, total recoverableMO AVG report only all year
001Aluminum, total recoverableDAILY MX <= 750 ug/L all year
001Aluminum, total recoverableMO AVG <= 258 ug/L 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. coliMO AVG report only all year
001BOD, 5-day, percent removalMO AV MN >= 85 % all year
001Solids, suspended percent removalMO AV MN >= 85 % all year
INFBOD, 5-day, 20 deg. CMO AVG report only all year
INFSolids, total suspendedMO AVG report only all year
INFNitrogen, ammonia total [as N]DAILY MX report only all year
INFNitrogen, ammonia total [as N]MO AVG report only all year
INFNitrogen, Kjeldahl, total [as N]DAILY MX report only all year
INFNitrogen, Kjeldahl, total [as N]MO AVG report only all year
INFNitrite + Nitrate total [as N]DAILY MX report only all year
INFNitrite + Nitrate total [as N]MO AVG report only all year
INFPhosphorus, total [as P]DAILY MX report only all year
INFPhosphorus, 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