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Hanston, City of

Sewage treatment plant, Hanston, Kansas. NPDES permit KS0031143, in force until Dec 31, 2026. Last 12 months: over a limit 49 times (last August 2026), 130 required values missing, 8 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 32 days after each period: form A monthly (26 values)
Renewal application due
Jul 4, 2026 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
33 values over a limit, 30 required values missing, 5 of 12 reports late

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

All 49 values over a limit
Period endingParameterReportedLimitOver by
October 2025E. coli, monthly geometric mean13800 #/100mL≤ 3843 #/100mL259%
October 2025E. coli, monthly geometric mean13800 #/100mL≤ 3843 #/100mL259%
October 2025Solids, total suspended, monthly average34 mg/L≤ 30 mg/L13%
October 2025Solids, total suspended, monthly average34 mg/L≤ 30 mg/L13%
November 2025BOD, 5-day, 20 deg. C, monthly average35 mg/L≤ 30 mg/L17%
November 2025BOD, 5-day, 20 deg. C, monthly average35 mg/L≤ 30 mg/L17%
November 2025Nitrogen, ammonia total [as N], daily maximum22 mg/L≤ 15.7 mg/L40%
November 2025Nitrogen, ammonia total [as N], daily maximum22 mg/L≤ 15.7 mg/L40%
November 2025Nitrogen, ammonia total [as N], monthly average22 mg/L≤ 15.1 mg/L46%
November 2025Nitrogen, ammonia total [as N], monthly average22 mg/L≤ 15.1 mg/L46%
December 2025E. coli, monthly geometric mean8660 #/100mL≤ 3843 #/100mL125%
February 2026BOD, 5-day, 20 deg. C, monthly average47 mg/L≤ 30 mg/L57%
February 2026BOD, 5-day, 20 deg. C, maximum weekly average47 mg/L≤ 45 mg/L4%
February 2026E. coli, monthly geometric mean61300 #/100mL≤ 3843 #/100mL1495%
February 2026Nitrogen, ammonia total [as N], daily maximum22 mg/L≤ 15.7 mg/L40%
February 2026Nitrogen, ammonia total [as N], monthly average22 mg/L≤ 15.1 mg/L46%
February 2026Solids, total suspended, monthly average43 mg/L≤ 30 mg/L43%
March 2026BOD, 5-day, 20 deg. C, monthly average44 mg/L≤ 30 mg/L47%
March 2026E. coli, monthly geometric mean51700 #/100mL≤ 3843 #/100mL1245%
March 2026Nitrogen, ammonia total [as N], daily maximum16 mg/L≤ 15.7 mg/L2%
March 2026Nitrogen, ammonia total [as N], monthly average16 mg/L≤ 13.7 mg/L17%
March 2026Solids, total suspended, monthly average41 mg/L≤ 30 mg/L37%
April 2026BOD, 5-day, 20 deg. C, monthly average46 mg/L≤ 30 mg/L53%
April 2026BOD, 5-day, 20 deg. C, monthly average46 mg/L≤ 30 mg/L53%
April 2026BOD, 5-day, 20 deg. C, maximum weekly average46 mg/L≤ 45 mg/L2%
April 2026BOD, 5-day, 20 deg. C, maximum weekly average46 mg/L≤ 45 mg/L2%
April 2026E. coli, monthly geometric mean130000 #/100mL≤ 3843 #/100mL3283%
April 2026E. coli, monthly geometric mean130000 #/100mL≤ 3843 #/100mL3283%
April 2026Nitrogen, ammonia total [as N], monthly average11 mg/L≤ 10.5 mg/L5%
April 2026Nitrogen, ammonia total [as N], monthly average11 mg/L≤ 10.5 mg/L5%
April 2026Solids, total suspended, monthly average41 mg/L≤ 30 mg/L37%
April 2026Solids, total suspended, monthly average41 mg/L≤ 30 mg/L37%
May 2026BOD, 5-day, 20 deg. C, monthly average40 mg/L≤ 30 mg/L33%
May 2026BOD, 5-day, 20 deg. C, monthly average40 mg/L≤ 30 mg/L33%
May 2026E. coli, monthly geometric mean98000 #/100mL≤ 3843 #/100mL2450%
May 2026E. coli, monthly geometric mean98000 #/100mL≤ 3843 #/100mL2450%
May 2026Nitrogen, ammonia total [as N], daily maximum18 mg/L≤ 8.4 mg/L114%
May 2026Nitrogen, ammonia total [as N], daily maximum18 mg/L≤ 8.4 mg/L114%
May 2026Nitrogen, ammonia total [as N], monthly average18 mg/L≤ 6.9 mg/L161%
May 2026Nitrogen, ammonia total [as N], monthly average18 mg/L≤ 6.9 mg/L161%
May 2026Solids, total suspended, monthly average36 mg/L≤ 30 mg/L20%
May 2026Solids, total suspended, monthly average36 mg/L≤ 30 mg/L20%
June 2026Nitrogen, ammonia total [as N], daily maximum22 mg/L≤ 5.2 mg/L323%
June 2026Nitrogen, ammonia total [as N], monthly average22 mg/L≤ 4.4 mg/L400%
July 2026E. coli, monthly geometric mean112000 #/100mL≤ 3843 #/100mL2814%
July 2026Nitrogen, ammonia total [as N], daily maximum24 mg/L≤ 4.5 mg/L433%
July 2026Nitrogen, ammonia total [as N], monthly average24 mg/L≤ 3.9 mg/L515%
August 2026Nitrogen, ammonia total [as N], daily maximum5.3 mg/L≤ 5 mg/L6%
August 2026Nitrogen, ammonia total [as N], monthly average5.3 mg/L≤ 4.3 mg/L23%

Limits in force (42)

ParameterStatisticLimitMonths
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 45 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year
pHdaily minimum≥ 6 SUall year
pHdaily maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedmaximum weekly average≤ 45 mg/Lall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Nitrogen, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, total [as N]monthly averagereport only (lb/d)all year
Nitrogen, ammonia total [as N]monthly average≤ 3.9 mg/LJul
Nitrogen, ammonia total [as N]monthly average≤ 6.6 mg/LSep
Nitrogen, ammonia total [as N]monthly average≤ 6.9 mg/LMay
Nitrogen, ammonia total [as N]monthly average≤ 13.7 mg/LMar
Nitrogen, ammonia total [as N]monthly average≤ 4.4 mg/LJun
Nitrogen, ammonia total [as N]monthly average≤ 10.3 mg/LOct
Nitrogen, ammonia total [as N]monthly average≤ 15.1 mg/LJan, Feb, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 10.5 mg/LApr
Nitrogen, ammonia total [as N]monthly average≤ 4.3 mg/LAug
Nitrogen, ammonia total [as N]daily maximum≤ 4.5 mg/LJul
Nitrogen, ammonia total [as N]daily maximum≤ 7.9 mg/LSep
Nitrogen, ammonia total [as N]daily maximum≤ 8.4 mg/LMay
Nitrogen, ammonia total [as N]daily maximum≤ 15.7 mg/LMar
Nitrogen, ammonia total [as N]daily maximum≤ 5.2 mg/LJun
Nitrogen, ammonia total [as N]daily maximum≤ 13.1 mg/LOct
Nitrogen, ammonia total [as N]daily maximum≤ 15.7 mg/LJan, Feb, Nov, Dec
Nitrogen, ammonia total [as N]daily maximum≤ 13.4 mg/LApr
Nitrogen, ammonia total [as N]daily maximum≤ 5 mg/LAug
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]monthly averagereport only (lb/d)all year
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Lead, total recoverablemonthly averagereport only (ug/L)all year
Copper, total recoverablemonthly averagereport only (ug/L)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
E. colimonthly geometric mean≤ 3843 #/100mLall year
Nitrogen, Total As Ndaily averagereport only (mg/L)all year
Nitrogen, Total As NEPA's "DPD AVG"report only (lb/d)all year
Phosphorus, Total As Pdaily averagereport only (mg/L)all year
Phosphorus, Total As PEPA's "DPD AVG"report only (lb/d)all year

How strict are these limits?

Cited limits by parameter: Kansas's rules and the federal ones.

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/KS0031143 · MCP: https://passage-data.com/mcp