Hiawatha Wastewater Plant #3 — NPDES permit KS0096440: limits, due date and EPA's record

Sewage treatment plant, Hiawatha, Kansas. NPDES permit KS0096440, in force until Oct 31, 2028. Last 12 months: over a limit 4 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.

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

Period ending	Parameter	Reported	Limit	Over by
July 2026	Nitrogen, ammonia total [as N], daily maximum	6.1 mg/L	≤ 2.8 mg/L	118%
July 2026	Nitrogen, ammonia total [as N], monthly average	6.1 mg/L	≤ .9 mg/L	578%
August 2026	Nitrogen, ammonia total [as N], daily maximum	5.1 mg/L	≤ 3 mg/L	70%
August 2026	Nitrogen, ammonia total [as N], monthly average	5.1 mg/L	≤ .9 mg/L	467%

Limits in force (82)

Parameter	Statistic	Limit	Months	Outfall
BOD, 5-day, 20 deg. C	monthly average	≤ 25 mg/L	Jul	001
BOD, 5-day, 20 deg. C	monthly average	≤ 25 mg/L	Sep	001
BOD, 5-day, 20 deg. C	monthly average	≤ 30 mg/L	Dec	001
BOD, 5-day, 20 deg. C	monthly average	≤ 25 mg/L	Jun	001
BOD, 5-day, 20 deg. C	monthly average	≤ 30 mg/L	Apr	001
BOD, 5-day, 20 deg. C	monthly average	≤ 30 mg/L	Jan	001
BOD, 5-day, 20 deg. C	monthly average	≤ 25 mg/L	May	001
BOD, 5-day, 20 deg. C	monthly average	≤ 25 mg/L	Aug	001
BOD, 5-day, 20 deg. C	monthly average	≤ 30 mg/L	Mar	001
BOD, 5-day, 20 deg. C	monthly average	≤ 30 mg/L	Feb	001
BOD, 5-day, 20 deg. C	monthly average	≤ 30 mg/L	Oct	001
BOD, 5-day, 20 deg. C	monthly average	≤ 30 mg/L	Nov	001
BOD, 5-day, 20 deg. C	maximum weekly average	≤ 40 mg/L	Jul	001
BOD, 5-day, 20 deg. C	maximum weekly average	≤ 40 mg/L	Sep	001
BOD, 5-day, 20 deg. C	maximum weekly average	≤ 45 mg/L	Dec	001
BOD, 5-day, 20 deg. C	maximum weekly average	≤ 40 mg/L	Jun	001
BOD, 5-day, 20 deg. C	maximum weekly average	≤ 45 mg/L	Apr	001
BOD, 5-day, 20 deg. C	maximum weekly average	≤ 45 mg/L	Jan	001
BOD, 5-day, 20 deg. C	maximum weekly average	≤ 40 mg/L	May	001
BOD, 5-day, 20 deg. C	maximum weekly average	≤ 40 mg/L	Aug	001
BOD, 5-day, 20 deg. C	maximum weekly average	≤ 45 mg/L	Mar	001
BOD, 5-day, 20 deg. C	maximum weekly average	≤ 45 mg/L	Feb	001
BOD, 5-day, 20 deg. C	maximum weekly average	≤ 45 mg/L	Oct	001
BOD, 5-day, 20 deg. C	maximum weekly average	≤ 45 mg/L	Nov	001
pH	daily minimum	≥ 6 SU	all year	001
pH	daily maximum	≤ 9 SU	all year	001
Solids, total suspended	monthly average	≤ 30 mg/L	all year	001
Solids, total suspended	maximum weekly average	≤ 45 mg/L	all year	001
Nitrogen, total [as N]	monthly average	report only (mg/L)	all year	001
Nitrogen, total [as N]	monthly average	report only (lb/d)	all year	001
Nitrogen, ammonia total [as N]	monthly average	≤ .9 mg/L	Aug	001
Nitrogen, ammonia total [as N]	monthly average	≤ .9 mg/L	Jul	001
Nitrogen, ammonia total [as N]	monthly average	≤ 3 mg/L	Jan	001
Nitrogen, ammonia total [as N]	monthly average	≤ 3 mg/L	Nov	001
Nitrogen, ammonia total [as N]	monthly average	≤ 1.3 mg/L	Sep	001
Nitrogen, ammonia total [as N]	monthly average	≤ 2.8 mg/L	Mar	001
Nitrogen, ammonia total [as N]	monthly average	≤ 1 mg/L	Jun	001
Nitrogen, ammonia total [as N]	monthly average	≤ 3 mg/L	Feb	001
Nitrogen, ammonia total [as N]	monthly average	≤ 2.1 mg/L	Apr	001
Nitrogen, ammonia total [as N]	monthly average	≤ 3 mg/L	Dec	001
Nitrogen, ammonia total [as N]	monthly average	≤ 2.1 mg/L	Oct	001
Nitrogen, ammonia total [as N]	monthly average	≤ 1.5 mg/L	May	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 3 mg/L	Aug	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 2.8 mg/L	Jul	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 9.4 mg/L	Jan	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 9.4 mg/L	Nov	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 4.5 mg/L	Sep	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 9.4 mg/L	Mar	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 3.1 mg/L	Jun	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 9.4 mg/L	Feb	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 7.6 mg/L	Apr	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 9.4 mg/L	Dec	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 7.8 mg/L	Oct	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 5.4 mg/L	May	001
Nitrogen, Kjeldahl, total [as N]	monthly average	report only (mg/L)	all year	001
Nitrite + Nitrate total [as N]	monthly average	report only (mg/L)	all year	001
Phosphorus, total [as P]	monthly average	report only (mg/L)	all year	001
Phosphorus, total [as P]	monthly average	report only (lb/d)	all year	001
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year	001
E. coli	monthly geometric mean	≤ 427 #/100mL	Jun	001
E. coli	monthly geometric mean	≤ 3843 #/100mL	Nov	001
E. coli	monthly geometric mean	≤ 3843 #/100mL	Mar	001
E. coli	monthly geometric mean	≤ 427 #/100mL	May	001
E. coli	monthly geometric mean	≤ 427 #/100mL	Apr	001
E. coli	monthly geometric mean	≤ 3843 #/100mL	Jan	001
E. coli	monthly geometric mean	≤ 427 #/100mL	Oct	001
E. coli	monthly geometric mean	≤ 3843 #/100mL	Feb	001
E. coli	monthly geometric mean	≤ 427 #/100mL	Sep	001
E. coli	monthly geometric mean	≤ 427 #/100mL	Aug	001
E. coli	monthly geometric mean	≤ 427 #/100mL	Jul	001
E. coli	monthly geometric mean	≤ 3843 #/100mL	Dec	001
Nitrogen, Total As N	daily average	report only (mg/L)	all year	001
Nitrogen, Total As N	EPA's "DPD AVG"	report only (lb/d)	all year	001
Phosphorus, Total As P	daily average	report only (mg/L)	all year	001
Phosphorus, Total As P	EPA's "DPD AVG"	report only (lb/d)	all year	001
Flow, irrigation	monthly average	report only (MGD)	all year	002
Chlorine, total residual	daily minimum	≥ .1 mg/L	all year	003
E. coli	monthly geometric mean	≤ 262 #/100mL	all year	003
BOD, 5-day, 20 deg. C	monthly average	report only (mg/L)	all year	004
Solids, total suspended	monthly average	report only (mg/L)	all year	004
Nitrogen, Kjeldahl, total [as N]	monthly average	report only (mg/L)	all year	004
Phosphorus, total [as P]	monthly average	report only (mg/L)	all year	004

How strict are these limits?

Your permit document is the final word. As JSON: /api/v1/permits/KS0096440 · MCP: https://passage-data.com/mcp