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City of Parkville

Sewage treatment plant, Parkville, Missouri. NPDES permit MO0113085 expired May 31, 2022; its limits still apply. Last 12 months: over a limit 12 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form A monthly (12 values), outfall 001 form C quarterly (6 values), outfall 001 form D every 60 months (2 values), outfall SM1 form A quarterly (4 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
3 values over a limit, 0 required values missing, 0 of 20 reports late

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

Period endingParameterReportedLimitOver by
April 2026BOD, 5-day, 20 deg. C, monthly average35.1≤ 25 mg/L40%
April 2026BOD, 5-day, 20 deg. C, weekly average71.7≤ 25 mg/L187%
April 2026BOD, 5-day, percent removal, monthly average minimum74≥ 85 %73%
May 2026BOD, 5-day, 20 deg. C, weekly average43.6≤ 25 mg/L74%
July 2026BOD, 5-day, 20 deg. C, monthly average45.6≤ 25 mg/L82%
July 2026BOD, 5-day, 20 deg. C, weekly average91.5≤ 25 mg/L266%
July 2026BOD, 5-day, percent removal, monthly average minimum80.4≥ 85 %31%
July 2026Solids, suspended percent removal, monthly average minimum82.9≥ 85 %14%
July 2026Solids, total suspended, monthly average34.8≤ 30 mg/L16%
July 2026Solids, total suspended, weekly average94≤ 45 mg/L109%
August 2026BOD, 5-day, 20 deg. C, monthly average26.9≤ 25 mg/L8%
August 2026BOD, 5-day, 20 deg. C, weekly average51.6≤ 25 mg/L106%

Limits in force (26)

ParameterStatisticLimitMonthsOutfall
BOD, 5-day, 20 deg. Cweekly average≤ 25 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 25 mg/Lall year001
pHminimum≥ 6.5 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedweekly average≤ 45 mg/Lall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Oil and grease [soxhlet extr.] tot.daily maximum≤ 15 mg/Lall year001
Oil and grease [soxhlet extr.] tot.monthly average≤ 10 mg/Lall year001
Nitrogen, ammonia total [as N]daily maximum≤ 12.1 mg/LJan, Feb, Mar, Oct, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 3 mg/LJan, Feb, Mar, Oct, Nov, Dec001
Nitrogen, nitrite total [as N]daily maximumreport only (mg/L)all year001
Nitrogen, nitrite total [as N]monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]daily maximumreport only (mg/L)all year001
Phosphorus, total [as P]monthly averagereport only (mg/L)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
E. coli7-day geometric mean≤ 1030 #/100mLApr–Oct001
E. coli30-day geometric mean≤ 206 #/100mLApr–Oct001
Toxicity [acute], Ceriodaphnia dubiadaily maximumreport only (toxic)all year001
Toxicity [acute], Pimephales promelas [Fathead Minnow]daily maximumreport only (toxic)all year001
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year001
Solids, suspended percent removalmonthly average minimum≥ 85 %all year001
Nitrogen, nitrite total [as N]daily maximumreport only (mg/L)all yearSM1
Nitrogen, nitrite total [as N]monthly averagereport only (mg/L)all yearSM1
Phosphorus, total [as P]daily maximumreport only (mg/L)all yearSM1
Phosphorus, total [as P]monthly averagereport only (mg/L)all yearSM1

How strict are these limits?

Cited limits by parameter: Missouri'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/MO0113085 · MCP: https://passage-data.com/mcp