City of Urbana — NPDES permit MO0095176: limits, due date and EPA's record

City of Urbana

Sewage treatment plant, Urbana, Missouri. NPDES permit MO0095176 expired Mar 31, 2024; its limits still apply. Last 12 months: over a limit 28 times (last June 2026), 54 required values missing, 7 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due

About 28 days after each period: form A monthly (18 values), form WA yearly

Last report on file

June 2026

Oct 2024 – Sep 2025

35 values over a limit, 36 required values missing, 10 of 13 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

All 28 values over a limit

Period ending	Parameter	Reported	Limit	Over by
October 2025	BOD, 5-day, percent removal, monthly average minimum	26	≥ 65 %	111%
October 2025	E. coli, 30-day geometric mean	> 2420	≤ 206 #/100mL	—
October 2025	E. coli, 7-day geometric mean	> 2420	≤ 1030 #/100mL	—
October 2025	Nitrogen, ammonia total [as N], daily maximum	12	≤ 11.7 mg/L	3%
October 2025	Nitrogen, ammonia total [as N], monthly average	12	≤ 2.6 mg/L	362%
October 2025	Solids, suspended percent removal, monthly average minimum	14	≥ 65 %	146%
November 2025	Nitrogen, ammonia total [as N], daily maximum	15	≤ 11.7 mg/L	28%
November 2025	Nitrogen, ammonia total [as N], daily maximum	15	≤ 11.7 mg/L	28%
November 2025	Nitrogen, ammonia total [as N], monthly average	15	≤ 2.6 mg/L	477%
November 2025	Nitrogen, ammonia total [as N], monthly average	15	≤ 2.6 mg/L	477%
December 2025	Nitrogen, ammonia total [as N], daily maximum	15	≤ 11.7 mg/L	28%
December 2025	Nitrogen, ammonia total [as N], monthly average	15	≤ 2.6 mg/L	477%
January 2026	Nitrogen, ammonia total [as N], daily maximum	18	≤ 11.7 mg/L	54%
January 2026	Nitrogen, ammonia total [as N], monthly average	18	≤ 2.6 mg/L	592%
January 2026	Oil and grease [soxhlet extr.] tot., monthly average	< 12	≤ 10 mg/L	20%
January 2026	Solids, suspended percent removal, monthly average minimum	54	≥ 65 %	31%
February 2026	Nitrogen, ammonia total [as N], daily maximum	18	≤ 11.7 mg/L	54%
February 2026	Nitrogen, ammonia total [as N], monthly average	18	≤ 2.6 mg/L	592%
March 2026	Nitrogen, ammonia total [as N], monthly average	8.5	≤ 2.6 mg/L	227%
April 2026	E. coli, 30-day geometric mean	610	≤ 206 #/100mL	196%
April 2026	Nitrogen, ammonia total [as N], monthly average	1.6	≤ 1.3 mg/L	23%
April 2026	Solids, suspended percent removal, monthly average minimum	26	≥ 65 %	111%
May 2026	E. coli, 30-day geometric mean	250	≤ 206 #/100mL	21%
May 2026	E. coli, 30-day geometric mean	250	≤ 206 #/100mL	21%
May 2026	Solids, suspended percent removal, monthly average minimum	36	≥ 65 %	83%
May 2026	Solids, suspended percent removal, monthly average minimum	36	≥ 65 %	83%
June 2026	E. coli, 30-day geometric mean	2420	≤ 206 #/100mL	1075%
June 2026	E. coli, 7-day geometric mean	2420	≤ 1030 #/100mL	135%

Limits in force (22)

Parameter	Statistic	Limit	Months
BOD, 5-day, 20 deg. C	weekly average	≤ 45 mg/L	all year
BOD, 5-day, 20 deg. C	monthly average	≤ 30 mg/L	all year
pH	minimum	≥ 6.5 SU	all year
pH	maximum	≤ 9 SU	all year
Solids, total suspended	weekly average	≤ 80 mg/L	all year
Solids, total suspended	monthly average	≤ 60 mg/L	all year
Oil and grease [soxhlet extr.] tot.	daily maximum	≤ 15 mg/L	all year
Oil and grease [soxhlet extr.] tot.	monthly average	≤ 10 mg/L	all year
Nitrogen, ammonia total [as N]	daily maximum	≤ 11.7 mg/L	Jan, Feb, Mar, Oct, Nov, Dec
Nitrogen, ammonia total [as N]	daily maximum	≤ 4.9 mg/L	Apr–Sep
Nitrogen, ammonia total [as N]	monthly average	≤ 2.6 mg/L	Jan, Feb, Mar, Oct, Nov, Dec
Nitrogen, ammonia total [as N]	monthly average	≤ 1.3 mg/L	Apr–Sep
Copper, total recoverable	daily maximum	≤ 22 ug/L	all year
Copper, total recoverable	monthly average	≤ 7.9 ug/L	all year
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year
E. coli	7-day geometric mean	≤ 1030 #/100mL	Apr–Oct
E. coli	30-day geometric mean	≤ 206 #/100mL	Apr–Oct
Toxicity [acute], Ceriodaphnia dubia	value	report only (toxic)	all year
Toxicity [acute], Pimephales promelas [Fathead Minnow]	value	report only (toxic)	all year
BOD, 5-day, percent removal	monthly average minimum	≥ 65 %	all year
Solids, suspended percent removal	monthly average minimum	≥ 65 %	all year

How strict are these limits?

Copper, total recoverable, monthly average 7.9 ug/L — stricter than 90% of 161 other minor POTWs nationwide; 1% have the same limit

Nitrogen, ammonia total [as N], daily maximum 4.9 mg/L — stricter than 83% of 545 other minor POTWs in Missouri; 1% have the same limit

Copper, total recoverable, daily maximum 22 ug/L — stricter than 75% of 162 other minor POTWs nationwide; 1% have the same limit

Your permit document is the final word. As JSON: /api/v1/permits/MO0095176 · MCP: https://passage-data.com/mcp