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Johnson County Wastewater

Sewage treatment plant, major discharger, Shawnee, Kansas. NPDES permit KS0088269, in force until Jan 31, 2030. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 29 days after each period: outfall 001 form X monthly (19 values), outfall 001 form Y monthly (1 value), outfall 002 form L monthly (13 values), outfall 003 form M monthly (14 values), outfall 004 form A monthly (4 values), outfall 001 form B yearly, and 1 more form
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 52 reports late

Limits in force (126)

ParameterStatisticLimitMonthsOutfall
Conductivitymonthly averagereport only (umho/cm)all year001
pHdaily minimum≥ 6 SUall year001
pHmonthly averagereport only (SU)all year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspendedmonthly averagereport only (mg/L)all year001
Solids, total suspendedmaximum weekly averagereport only (mg/L)all 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≤ 32.5 mg/LMar001
Nitrogen, ammonia total [as N]monthly average≤ 34.3 mg/LFeb001
Nitrogen, ammonia total [as N]monthly average≤ 14.6 mg/LAug001
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, ammonia total [as N]monthly average≤ 28.4 mg/LApr001
Nitrogen, ammonia total [as N]monthly average≤ 20.2 mg/LOct001
Nitrogen, ammonia total [as N]monthly average≤ 17.2 mg/LJul001
Nitrogen, ammonia total [as N]monthly average≤ 32.5 mg/LNov001
Nitrogen, ammonia total [as N]monthly average≤ 35.8 mg/LDec001
Nitrogen, ammonia total [as N]monthly average≤ 22.6 mg/LJun001
Nitrogen, ammonia total [as N]monthly average≤ 20.2 mg/LSep001
Nitrogen, ammonia total [as N]monthly average≤ 34.3 mg/LJan001
Nitrogen, ammonia total [as N]monthly average≤ 22.6 mg/LMay001
Nitrogen, ammonia total [as N]daily maximum≤ 27.3 mg/LMar001
Nitrogen, ammonia total [as N]daily maximum≤ 14.7 mg/LMay001
Nitrogen, ammonia total [as N]daily maximum≤ 27.3 mg/LFeb001
Nitrogen, ammonia total [as N]daily maximum≤ 9.7 mg/LSep001
Nitrogen, ammonia total [as N]daily maximum≤ 9.5 mg/LJun001
Nitrogen, ammonia total [as N]daily maximum≤ 21.7 mg/LApr001
Nitrogen, ammonia total [as N]daily maximum≤ 27.3 mg/LJan001
Nitrogen, ammonia total [as N]daily maximum≤ 7.7 mg/LAug001
Nitrogen, ammonia total [as N]daily maximum≤ 27.3 mg/LDec001
Nitrogen, ammonia total [as N]daily maximum≤ 27.3 mg/LNov001
Nitrogen, ammonia total [as N]daily maximum≤ 15.5 mg/LOct001
Nitrogen, ammonia total [as N]daily maximum≤ 6.7 mg/LJul001
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
Phosphorus, total [as P]monthly averagereport only (lb/d)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 (ug/L)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
E. colimonthly geometric mean≤ 1040 #/100mLMay001
E. colimonthly geometric mean≤ 2000 #/100mLDec001
E. colimonthly geometric mean≤ 1040 #/100mLSep001
E. colimonthly geometric mean≤ 1040 #/100mLOct001
E. colimonthly geometric mean≤ 2000 #/100mLFeb001
E. colimonthly geometric mean≤ 2000 #/100mLMar001
E. colimonthly geometric mean≤ 1040 #/100mLAug001
E. colimonthly geometric mean≤ 2000 #/100mLNov001
E. colimonthly geometric mean≤ 2000 #/100mLJan001
E. colimonthly geometric mean≤ 1040 #/100mLJun001
E. colimonthly geometric mean≤ 1040 #/100mLApr001
E. colimonthly geometric mean≤ 1040 #/100mLJul001
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= 33 %all year001
IC25 Static Renewal 7 Day Chronic Pimephalesdaily minimum≥ 33 %all year001
pHmonthly averagereport only (SU)all year002
Solids, total suspendedmonthly average≤ 80 mg/Lall year002
Solids, total suspendedmaximum weekly average≤ 120 mg/Lall year002
Nitrogen, total [as N]monthly averagereport only (mg/L)all year002
Nitrogen, total [as N]monthly averagereport only (lb/d)all year002
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year002
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year002
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year002
Phosphorus, total [as P]monthly averagereport only (mg/L)all year002
Phosphorus, total [as P]monthly averagereport only (lb/d)all year002
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year002
E. colimonthly geometric meanreport only (#/100mL)all year002
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all year002
pHmonthly averagereport only (SU)all year003
Solids, total suspendedmonthly average≤ 30 mg/Lall year003
Solids, total suspendedmaximum weekly average≤ 45 mg/Lall year003
Nitrogen, total [as N]monthly averagereport only (mg/L)all year003
Nitrogen, total [as N]monthly averagereport only (lb/d)all year003
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year003
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year003
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year003
Phosphorus, total [as P]monthly averagereport only (mg/L)all year003
Phosphorus, total [as P]monthly averagereport only (lb/d)all year003
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year003
E. colimonthly geometric mean≤ 2358 #/100mLNov003
E. colimonthly geometric mean≤ 262 #/100mLJun003
E. colimonthly geometric mean≤ 2358 #/100mLMar003
E. colimonthly geometric mean≤ 262 #/100mLAug003
E. colimonthly geometric mean≤ 262 #/100mLSep003
E. colimonthly geometric mean≤ 262 #/100mLOct003
E. colimonthly geometric mean≤ 262 #/100mLJul003
E. colimonthly geometric mean≤ 2358 #/100mLJan003
E. colimonthly geometric mean≤ 262 #/100mLApr003
E. colimonthly geometric mean≤ 2358 #/100mLFeb003
E. colimonthly geometric mean≤ 2358 #/100mLDec003
E. colimonthly geometric mean≤ 262 #/100mLMay003
E. coliweekly geometric meanreport only (#/100mL)Nov003
E. coliweekly geometric mean≤ 4348 #/100mLJun003
E. coliweekly geometric meanreport only (#/100mL)Mar003
E. coliweekly geometric mean≤ 4348 #/100mLAug003
E. coliweekly geometric mean≤ 4348 #/100mLSep003
E. coliweekly geometric mean≤ 4348 #/100mLOct003
E. coliweekly geometric mean≤ 4348 #/100mLJul003
E. coliweekly geometric meanreport only (#/100mL)Jan003
E. coliweekly geometric mean≤ 4348 #/100mLApr003
E. coliweekly geometric meanreport only (#/100mL)Feb003
E. coliweekly geometric meanreport only (#/100mL)Dec003
E. coliweekly geometric mean≤ 4348 #/100mLMay003
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all year003
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year004
Solids, total suspendedmonthly averagereport only (mg/L)all year004
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year004
Phosphorus, total [as P]monthly averagereport only (mg/L)all year004

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/KS0088269 · MCP: https://passage-data.com/mcp