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Johnson County Wastewater

Sewage treatment plant, major discharger, Overland Park, Kansas. NPDES permit KS0119601, in force until Feb 28, 2027. 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 A monthly (5 values), outfall 003 form A monthly (25 values), outfall 005 form A monthly (4 values), outfall 006 form A monthly (5 values), outfall 003 form B yearly, outfall 003 form W yearly
Renewal application due
Sep 1, 2026 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 50 reports late

Limits in force (85)

ParameterStatisticLimitMonthsOutfall
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year001
Solids, total suspendedmonthly averagereport only (mg/L)all year001
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]monthly averagereport only (mg/L)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Temperature, water deg. centigrademonthly averagereport only (deg C)all year003
Conductivitymonthly averagereport only (umho/cm)all year003
Oxygen, dissolved [DO]minimum weekly average≥ 6 mg/Lall year003
BOD, nitrogen inhib 5-day [20 deg. C]monthly average≤ 15 mg/LJan, Feb, Mar, Apr, May, Jun, Sep, Oct, Nov, Dec003
BOD, nitrogen inhib 5-day [20 deg. C]monthly average≤ 10 mg/LJul, Aug003
BOD, nitrogen inhib 5-day [20 deg. C]maximum weekly average≤ 25 mg/LJan, Feb, Mar, Apr, May, Jun, Sep, Oct, Nov, Dec003
BOD, nitrogen inhib 5-day [20 deg. C]maximum weekly average≤ 20 mg/LJul, Aug003
pHdaily minimum≥ 6 SUall year003
pHmonthly averagereport only (SU)all year003
pHdaily maximum≤ 9 SUall 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 average≤ .9 mg/LAug003
Nitrogen, ammonia total [as N]monthly average≤ 1.8 mg/LMar003
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year003
Nitrogen, ammonia total [as N]monthly average≤ 1.6 mg/LMay003
Nitrogen, ammonia total [as N]monthly average≤ .8 mg/LJul003
Nitrogen, ammonia total [as N]monthly average≤ 1 mg/LJun003
Nitrogen, ammonia total [as N]monthly average≤ 2.8 mg/LJan003
Nitrogen, ammonia total [as N]monthly average≤ 2.5 mg/LNov003
Nitrogen, ammonia total [as N]monthly average≤ 2.3 mg/LFeb003
Nitrogen, ammonia total [as N]monthly average≤ 3.1 mg/LDec003
Nitrogen, ammonia total [as N]monthly average≤ 1 mg/LSep003
Nitrogen, ammonia total [as N]monthly average≤ 1.6 mg/LApr003
Nitrogen, ammonia total [as N]monthly average≤ 1.7 mg/LOct003
Nitrogen, ammonia total [as N]daily maximum≤ 4.6 mg/LAug003
Nitrogen, ammonia total [as N]daily maximum≤ 11.1 mg/LMar003
Nitrogen, ammonia total [as N]daily maximum≤ 10.4 mg/LMay003
Nitrogen, ammonia total [as N]daily maximum≤ 4.3 mg/LJul003
Nitrogen, ammonia total [as N]daily maximum≤ 5.5 mg/LJun003
Nitrogen, ammonia total [as N]daily maximum≤ 15.1 mg/LJan003
Nitrogen, ammonia total [as N]daily maximum≤ 16.5 mg/LNov003
Nitrogen, ammonia total [as N]daily maximum≤ 11.6 mg/LFeb003
Nitrogen, ammonia total [as N]daily maximum≤ 17.8 mg/LDec003
Nitrogen, ammonia total [as N]daily maximum≤ 5.5 mg/LSep003
Nitrogen, ammonia total [as N]daily maximum≤ 10.2 mg/LApr003
Nitrogen, ammonia total [as N]daily maximum≤ 10.6 mg/LOct003
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
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year003
Chloride [as Cl]monthly averagereport only (mg/L)all year003
Arsenic, total recoverablemonthly averagereport only (ug/L)all year003
Selenium, total recoverablemonthly averagereport only (ug/L)all year003
Thallium, total recoverablemonthly averagereport only (ug/L)all year003
Beryllium, total recoverable [as Be]monthly averagereport only (ug/L)all year003
Nickel, total recoverablemonthly averagereport only (ug/L)all year003
Silver total recoverablemonthly averagereport only (ug/L)all year003
Zinc, total recoverablemonthly averagereport only (ug/L)all year003
Cadmium, total recoverablemonthly averagereport only (ug/L)all year003
Lead, total recoverablemonthly averagereport only (ug/L)all year003
Chromium, total recoverablemonthly averagereport only (ug/L)all year003
Copper, total recoverablemonthly averagereport only (ug/L)all year003
Antimony, total recoverablemonthly averagereport only (ug/L)all year003
Priority Pollutantsmonthly averagereport only (mg/L)all year003
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year003
E. colimonthly geometric mean≤ 2358 #/100mLJan, Feb, Mar, Nov, Dec003
E. colimonthly geometric mean≤ 262 #/100mLApr–Oct003
E. coliweekly geometric meanreport only (#/100mL)Jan, Feb, Mar, Nov, Dec003
E. coliweekly geometric mean≤ 4348 #/100mLApr–Oct003
Nitrogen, Total As Ndaily averagereport only (mg/L)all year003
Nitrogen, Total As NEPA's "DPD AVG"report only (lb/d)all year003
Phosphorus, Total As Pdaily averagereport only (mg/L)all year003
Phosphorus, Total As PEPA's "DPD AVG"report only (lb/d)all year003
Nitrite + Nitrate total [as N]daily average≤ 10 mg/Lall year003
Mercury, total [as Hg]monthly averagereport only (ug/L)all year003
IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubiadaily minimum≥ 96 %all year003
IC25 Static Renewal 7 Day Chronic Pimephalesdaily minimum≥ 96 %all year003
Temperature, water deg. centigrademonthly averagereport only (deg C)all year005
Oxygen, dissolved [DO]minimum weekly averagereport only (mg/L)all year005
pHmonthly averagereport only (SU)all year005
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year005
Temperature, water deg. centigrademonthly averagereport only (deg C)all year006
Oxygen, dissolved [DO]minimum weekly averagereport only (mg/L)all year006
pHmonthly averagereport only (SU)all year006
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year006
Stream flow, estimatedmonthly averagereport only (cfs)all year006

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/KS0119601 · MCP: https://passage-data.com/mcp