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Joco Nelson Complex Wastewater Plant

Sewage treatment plant, major discharger, Mission, Kansas. NPDES permit KS0055492, in force until Jan 31, 2030. Last 12 months: over a limit 18 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 29 days after each period: outfall 001 form A monthly (21 values), outfall 002 form A monthly (4 values), outfall 003 form A monthly (4 values), outfall 001 form B yearly, outfall 001 form W yearly
Last report on file
August 2026
Oct 2024 – Sep 2025
18 values over a limit, 0 required values missing, 0 of 36 reports late

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

All 18 values over a limit
Period endingParameterReportedLimitOver by
October 2025Nitrogen, ammonia total [as N], monthly average10.04167 mg/L≤ 6.7 mg/L50%
November 2025Nitrogen, ammonia total [as N], monthly average10.55833 mg/L≤ 9.1 mg/L16%
December 2025BOD, carbonaceous [5 day, 20 C], monthly average29.66667 mg/L≤ 25 mg/L19%
December 2025IC25 Static Renewal 7 Day Chronic Chrpimephales, daily minimum84.6 %≥ 96 %12%
December 2025Nitrogen, ammonia total [as N], monthly average13.55833 mg/L≤ 11.3 mg/L20%
January 2026BOD, carbonaceous [5 day, 20 C], monthly average32.58333 mg/L≤ 25 mg/L30%
January 2026Nitrogen, ammonia total [as N], monthly average14.93333 mg/L≤ 10.4 mg/L44%
February 2026BOD, carbonaceous [5 day, 20 C], monthly average27.91667 mg/L≤ 25 mg/L12%
February 2026Nitrogen, ammonia total [as N], monthly average16.775 mg/L≤ 10 mg/L68%
March 2026Nitrogen, ammonia total [as N], monthly average11.46667 mg/L≤ 6.4 mg/L79%
April 2026Nitrogen, ammonia total [as N], monthly average9.00833 mg/L≤ 6.6 mg/L36%
May 2026Nitrogen, ammonia total [as N], monthly average8.65 mg/L≤ 4.9 mg/L77%
May 2026Solids, total suspended, monthly average43.91667 mg/L≤ 30 mg/L46%
May 2026Solids, total suspended, maximum weekly average134.33333 mg/L≤ 45 mg/L199%
June 2026Nitrogen, ammonia total [as N], monthly average6.375 mg/L≤ 3.9 mg/L63%
July 2026BOD, carbonaceous [5 day, 20 C], monthly average26.66667 mg/L≤ 25 mg/L7%
July 2026Nitrogen, ammonia total [as N], monthly average7.90833 mg/L≤ 3.1 mg/L155%
August 2026Nitrogen, ammonia total [as N], monthly average7.30833 mg/L≤ 3.3 mg/L121%

Limits in force (82)

ParameterStatisticLimitMonthsOutfall
Conductivitymonthly averagereport only (umho/cm)all year001
Oxygen, dissolved [DO]minimum weekly average≥ 6 mg/Lall year001
pHdaily minimum≥ 6 SUall year001
pHmonthly averagereport only (SU)all year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendedmaximum weekly average≤ 45 mg/Lall year001
Nitrogen, total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, total [as N]monthly averagereport only (lb/d)all year001
Nitrogen, ammonia total [as N]monthly average≤ 6.4 mg/LMar001
Nitrogen, ammonia total [as N]monthly average≤ 9.1 mg/LNov001
Nitrogen, ammonia total [as N]monthly average≤ 4.9 mg/LMay001
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, ammonia total [as N]monthly average≤ 3.1 mg/LJul001
Nitrogen, ammonia total [as N]monthly average≤ 11.3 mg/LDec001
Nitrogen, ammonia total [as N]monthly average≤ 6.7 mg/LOct001
Nitrogen, ammonia total [as N]monthly average≤ 3.9 mg/LJun001
Nitrogen, ammonia total [as N]monthly average≤ 3.3 mg/LAug001
Nitrogen, ammonia total [as N]monthly average≤ 10.4 mg/LJan001
Nitrogen, ammonia total [as N]monthly average≤ 10 mg/LFeb001
Nitrogen, ammonia total [as N]monthly average≤ 4 mg/LSep001
Nitrogen, ammonia total [as N]monthly average≤ 6.6 mg/LApr001
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year001
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]monthly averagereport only (mg/L)all year001
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year001
Arsenic, total recoverablemonthly averagereport only (ug/L)all year001
Selenium, total recoverablemonthly averagereport only (ug/L)all year001
Thallium, total recoverablemonthly averagereport only (ug/L)all year001
Beryllium, total recoverable [as Be]monthly averagereport only (ug/L)all year001
Nickel, total recoverablemonthly averagereport only (ug/L)all year001
Silver total recoverablemonthly averagereport only (ug/L)all year001
Zinc, total recoverablemonthly averagereport only (ug/L)all year001
Cadmium, total recoverablemonthly averagereport only (ug/L)all year001
Lead, total recoverablemonthly averagereport only (ug/L)all year001
Chromium, total recoverablemonthly averagereport only (ug/L)all year001
Copper, total recoverablemonthly averagereport only (ug/L)all year001
Antimony, total recoverablemonthly averagereport only (ug/L)all year001
Priority Pollutantsmonthly averagereport only (mg/L)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Chlorine, total residualdaily maximum≤ 100 ug/Lall year001
E. colimonthly geometric mean≤ 262 #/100mLJul001
E. colimonthly geometric mean≤ 262 #/100mLJun001
E. colimonthly geometric mean≤ 2358 #/100mLDec001
E. colimonthly geometric mean≤ 262 #/100mLSep001
E. colimonthly geometric mean≤ 262 #/100mLOct001
E. colimonthly geometric mean≤ 262 #/100mLMay001
E. colimonthly geometric mean≤ 2358 #/100mLNov001
E. colimonthly geometric mean≤ 262 #/100mLApr001
E. colimonthly geometric mean≤ 2358 #/100mLMar001
E. colimonthly geometric mean≤ 262 #/100mLAug001
E. colimonthly geometric mean≤ 2358 #/100mLJan001
E. colimonthly geometric mean≤ 2358 #/100mLFeb001
E. coliweekly geometric mean≤ 4348 #/100mLJul001
E. coliweekly geometric mean≤ 4348 #/100mLJun001
E. coliweekly geometric meanreport only (#/100mL)Dec001
E. coliweekly geometric mean≤ 4348 #/100mLSep001
E. coliweekly geometric mean≤ 4348 #/100mLOct001
E. coliweekly geometric mean≤ 4348 #/100mLMay001
E. coliweekly geometric meanreport only (#/100mL)Nov001
E. coliweekly geometric mean≤ 4348 #/100mLApr001
E. coliweekly geometric meanreport only (#/100mL)Mar001
E. coliweekly geometric mean≤ 4348 #/100mLAug001
E. coliweekly geometric meanreport only (#/100mL)Jan001
E. coliweekly geometric meanreport only (#/100mL)Feb001
Nitrogen, Total As Ndaily averagereport only (mg/L)all year001
Nitrogen, Total As NEPA's "DPD AVG"report only (lb/d)all year001
Phosphorus, Total As Pdaily averagereport only (mg/L)all year001
Phosphorus, Total As PEPA's "DPD AVG"report only (lb/d)all year001
Mercury, total [as Hg]monthly averagereport only (ug/L)all year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 40 mg/Lall year001
IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubiadaily minimum≥ 96 %all year001
IC25 Static Renewal 7 Day Chronic Pimephalesdaily minimum≥ 96 %all year001
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year002
Solids, total suspendedmonthly averagereport only (mg/L)all year002
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year002
Phosphorus, total [as P]monthly averagereport only (mg/L)all year002
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year003
Solids, total suspendedmonthly averagereport only (mg/L)all year003
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year003
Phosphorus, total [as P]monthly averagereport only (mg/L)all year003

How strict are these limits?

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/KS0055492 · MCP: https://passage-data.com/mcp