City of Panora — NPDES permit IA0057045: limits, due date and EPA's record

Sewage treatment plant, Panora, Iowa. NPDES permit IA0057045, in force until Jan 31, 2029. Last 12 months: over a limit 3 times (last February 2026). Source: EPA ECHO, Oct 22, 2026.

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

Period ending	Parameter	Reported	Limit	Over by
February 2026	BOD, carbonaceous [5 day, 20 C], 30-day average	65.125	≤ 25 mg/L	161%
February 2026	BOD, carbonaceous [5 day, 20 C], 7-day average	230.5	≤ 40 mg/L	476%
February 2026	BOD, carbonaceous [5 day, 20 C], 7-day average	345.6262	≤ 170 lb/d	103%

Limits in force (144)

Parameter	Statistic	Limit	Months	Outfall
BOD, 5-day, 20 deg. C	30-day average	report only (mg/L)	all year	001
BOD, 5-day, 20 deg. C	daily maximum	report only (mg/L)	all year	001
BOD, 5-day, 20 deg. C	30-day average	report only (lb/d)	all year	001
BOD, 5-day, 20 deg. C	daily maximum	report only (lb/d)	all year	001
pH	daily minimum	≥ 6 SU	all year	001
pH	daily maximum	≤ 9 SU	all year	001
pH	30-day average	report only (SU)	all year	001
pH	daily maximum	report only (SU)	all year	001
Solids, total suspended	30-day average	≤ 80 mg/L	all year	001
Solids, total suspended	7-day average	≤ 120 mg/L	all year	001
Solids, total suspended	30-day average	≤ 340 lb/d	all year	001
Solids, total suspended	7-day average	≤ 510 lb/d	all year	001
Solids, total suspended	30-day average	report only (mg/L)	all year	001
Solids, total suspended	daily maximum	report only (mg/L)	all year	001
Solids, total suspended	30-day average	report only (lb/d)	all year	001
Solids, total suspended	daily maximum	report only (lb/d)	all year	001
Nitrogen, ammonia total [as N]	30-day average	≤ 82.1 mg/L	Sep	001
Nitrogen, ammonia total [as N]	30-day average	≤ 193.6 mg/L	Dec	001
Nitrogen, ammonia total [as N]	30-day average	≤ 182.1 mg/L	Nov	001
Nitrogen, ammonia total [as N]	30-day average	≤ 78 mg/L	Jul	001
Nitrogen, ammonia total [as N]	30-day average	≤ 74 mg/L	Aug	001
Nitrogen, ammonia total [as N]	30-day average	≤ 156.7 mg/L	Mar	001
Nitrogen, ammonia total [as N]	30-day average	≤ 268 mg/L	Jan	001
Nitrogen, ammonia total [as N]	30-day average	≤ 118.3 mg/L	Apr	001
Nitrogen, ammonia total [as N]	30-day average	≤ 102.1 mg/L	Jun	001
Nitrogen, ammonia total [as N]	30-day average	≤ 135.3 mg/L	May	001
Nitrogen, ammonia total [as N]	30-day average	≤ 121.6 mg/L	Oct	001
Nitrogen, ammonia total [as N]	30-day average	≤ 306.6 mg/L	Feb	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 311.8 mg/L	Sep	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 312.3 mg/L	Dec	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 311.8 mg/L	Nov	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 379 mg/L	Jul	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 378.5 mg/L	Aug	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 453.6 mg/L	Mar	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 480.2 mg/L	Jan	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 313.1 mg/L	Apr	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 379 mg/L	Jun	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 378.4 mg/L	May	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 311.8 mg/L	Oct	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 556.6 mg/L	Feb	001
Nitrogen, ammonia total [as N]	30-day average	≤ 100.1 lb/d	Sep	001
Nitrogen, ammonia total [as N]	30-day average	≤ 235.9 lb/d	Dec	001
Nitrogen, ammonia total [as N]	30-day average	≤ 221.9 lb/d	Nov	001
Nitrogen, ammonia total [as N]	30-day average	≤ 95.1 lb/d	Jul	001
Nitrogen, ammonia total [as N]	30-day average	≤ 90.2 lb/d	Aug	001
Nitrogen, ammonia total [as N]	30-day average	≤ 191.2 lb/d	Mar	001
Nitrogen, ammonia total [as N]	30-day average	≤ 326.6 lb/d	Jan	001
Nitrogen, ammonia total [as N]	30-day average	≤ 144.2 lb/d	Apr	001
Nitrogen, ammonia total [as N]	30-day average	≤ 124.4 lb/d	Jun	001
Nitrogen, ammonia total [as N]	30-day average	≤ 164.9 lb/d	May	001
Nitrogen, ammonia total [as N]	30-day average	≤ 148.2 lb/d	Oct	001
Nitrogen, ammonia total [as N]	30-day average	≤ 373.7 lb/d	Feb	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 376.1 lb/d	Sep	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 380.3 lb/d	Dec	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 376.1 lb/d	Nov	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 457.1 lb/d	Jul	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 455 lb/d	Aug	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 547.3 lb/d	Mar	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 639.7 lb/d	Jan	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 383.7 lb/d	Apr	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 457.1 lb/d	Jun	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 456.4 lb/d	May	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 376.1 lb/d	Oct	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 682.2 lb/d	Feb	001
Nitrogen, Kjeldahl, total [as N]	30-day average	≤ 232 lb/d	all year	001
Nitrogen, Kjeldahl, total [as N]	daily maximum	≤ 379 lb/d	all year	001
Nitrogen, Kjeldahl, total [as N]	30-day average	report only (mg/L)	all year	001
Nitrogen, Kjeldahl, total [as N]	daily maximum	report only (mg/L)	all year	001
Nitrogen, Kjeldahl, total [as N]	30-day average	report only (lb/d)	all year	001
Nitrogen, Kjeldahl, total [as N]	daily maximum	report only (lb/d)	all year	001
Chlorine, total residual	30-day average	≤ .613 mg/L	all year	001
Chlorine, total residual	daily maximum	≤ 1.27 mg/L	all year	001
Chlorine, total residual	30-day average	≤ .749 lb/d	all year	001
Chlorine, total residual	daily maximum	≤ 1.556 lb/d	all year	001
E. coli	geometric mean	≤ 126 #/100mL	Mar–Nov	001
BOD, carbonaceous [5 day, 20 C]	30-day average	≤ 25 mg/L	all year	001
BOD, carbonaceous [5 day, 20 C]	7-day average	≤ 40 mg/L	all year	001
BOD, carbonaceous [5 day, 20 C]	30-day average	≤ 106 lb/d	all year	001
BOD, carbonaceous [5 day, 20 C]	7-day average	≤ 170 lb/d	all year	001
pH	daily minimum	≥ 6 SU	all year	002
pH	daily maximum	≤ 9 SU	all year	002
Solids, total suspended	30-day average	≤ 80 mg/L	all year	002
Solids, total suspended	7-day average	≤ 120 mg/L	all year	002
Solids, total suspended	30-day average	≤ 340 lb/d	all year	002
Solids, total suspended	7-day average	≤ 510 lb/d	all year	002
Nitrogen, ammonia total [as N]	30-day average	≤ 12.2 mg/L	Aug	002
Nitrogen, ammonia total [as N]	30-day average	≤ 33.7 mg/L	Jan	002
Nitrogen, ammonia total [as N]	30-day average	≤ 11.6 mg/L	Dec	002
Nitrogen, ammonia total [as N]	30-day average	≤ 12.7 mg/L	Jun	002
Nitrogen, ammonia total [as N]	30-day average	≤ 22.1 mg/L	Feb	002
Nitrogen, ammonia total [as N]	30-day average	≤ 10.4 mg/L	Nov	002
Nitrogen, ammonia total [as N]	30-day average	≤ 15.2 mg/L	Mar	002
Nitrogen, ammonia total [as N]	30-day average	≤ 12.7 mg/L	May	002
Nitrogen, ammonia total [as N]	30-day average	≤ 12.4 mg/L	Apr	002
Nitrogen, ammonia total [as N]	30-day average	≤ 10.4 mg/L	Oct	002
Nitrogen, ammonia total [as N]	30-day average	≤ 10.4 mg/L	Sep	002
Nitrogen, ammonia total [as N]	30-day average	≤ 12.7 mg/L	Jul	002
Nitrogen, ammonia total [as N]	daily maximum	≤ 12.2 mg/L	Aug	002
Nitrogen, ammonia total [as N]	daily maximum	≤ 33.7 mg/L	Jan	002
Nitrogen, ammonia total [as N]	daily maximum	≤ 11.6 mg/L	Dec	002
Nitrogen, ammonia total [as N]	daily maximum	≤ 12.7 mg/L	Jun	002
Nitrogen, ammonia total [as N]	daily maximum	≤ 22.1 mg/L	Feb	002
Nitrogen, ammonia total [as N]	daily maximum	≤ 10.4 mg/L	Nov	002
Nitrogen, ammonia total [as N]	daily maximum	≤ 15.2 mg/L	Mar	002
Nitrogen, ammonia total [as N]	daily maximum	≤ 12.7 mg/L	May	002
Nitrogen, ammonia total [as N]	daily maximum	≤ 12.4 mg/L	Apr	002
Nitrogen, ammonia total [as N]	daily maximum	≤ 10.4 mg/L	Oct	002
Nitrogen, ammonia total [as N]	daily maximum	≤ 10.4 mg/L	Sep	002
Nitrogen, ammonia total [as N]	daily maximum	≤ 12.7 mg/L	Jul	002
Nitrogen, ammonia total [as N]	30-day average	≤ 22.6 lb/d	Aug	002
Nitrogen, ammonia total [as N]	30-day average	≤ 92.5 lb/d	Jan	002
Nitrogen, ammonia total [as N]	30-day average	≤ 25.6 lb/d	Dec	002
Nitrogen, ammonia total [as N]	30-day average	≤ 24.9 lb/d	Jun	002
Nitrogen, ammonia total [as N]	30-day average	≤ 51.9 lb/d	Feb	002
Nitrogen, ammonia total [as N]	30-day average	≤ 20.5 lb/d	Nov	002
Nitrogen, ammonia total [as N]	30-day average	≤ 30 lb/d	Mar	002
Nitrogen, ammonia total [as N]	30-day average	≤ 24.8 lb/d	May	002
Nitrogen, ammonia total [as N]	30-day average	≤ 29.1 lb/d	Apr	002
Nitrogen, ammonia total [as N]	30-day average	≤ 20.5 lb/d	Oct	002
Nitrogen, ammonia total [as N]	30-day average	≤ 20.5 lb/d	Sep	002
Nitrogen, ammonia total [as N]	30-day average	≤ 24.9 lb/d	Jul	002
Nitrogen, ammonia total [as N]	daily maximum	≤ 22.6 lb/d	Aug	002
Nitrogen, ammonia total [as N]	daily maximum	≤ 102.8 lb/d	Jan	002
Nitrogen, ammonia total [as N]	daily maximum	≤ 25.6 lb/d	Dec	002
Nitrogen, ammonia total [as N]	daily maximum	≤ 24.9 lb/d	Jun	002
Nitrogen, ammonia total [as N]	daily maximum	≤ 51.9 lb/d	Feb	002
Nitrogen, ammonia total [as N]	daily maximum	≤ 20.5 lb/d	Nov	002
Nitrogen, ammonia total [as N]	daily maximum	≤ 30 lb/d	Mar	002
Nitrogen, ammonia total [as N]	daily maximum	≤ 24.8 lb/d	May	002
Nitrogen, ammonia total [as N]	daily maximum	≤ 29.1 lb/d	Apr	002
Nitrogen, ammonia total [as N]	daily maximum	≤ 20.5 lb/d	Oct	002
Nitrogen, ammonia total [as N]	daily maximum	≤ 20.5 lb/d	Sep	002
Nitrogen, ammonia total [as N]	daily maximum	≤ 24.9 lb/d	Jul	002
Nitrogen, Kjeldahl, total [as N]	30-day average	≤ 232 lb/d	all year	002
Nitrogen, Kjeldahl, total [as N]	daily maximum	≤ 379 lb/d	all year	002
Chlorine, total residual	30-day average	≤ .05 mg/L	all year	002
Chlorine, total residual	daily maximum	≤ .05 mg/L	all year	002
Chlorine, total residual	30-day average	≤ .118 lb/d	all year	002
Chlorine, total residual	daily maximum	≤ .118 lb/d	all year	002
E. coli	geometric mean	≤ 126 #/100mL	Mar–Nov	002
BOD, carbonaceous [5 day, 20 C]	30-day average	≤ 25 mg/L	all year	002
BOD, carbonaceous [5 day, 20 C]	7-day average	≤ 40 mg/L	all year	002
BOD, carbonaceous [5 day, 20 C]	30-day average	≤ 106 lb/d	all year	002
BOD, carbonaceous [5 day, 20 C]	7-day average	≤ 170 lb/d	all year	002

How strict are these limits?

Your permit document is the final word. As JSON: /api/v1/permits/IA0057045 · MCP: https://passage-data.com/mcp