Passage Data · Check a report · Use it from your AI

John & Lisa Page

Switchgear And Switchboard Apparatus, Columbia, Missouri. NPDES permit MO0124494, in force until Mar 31, 2028. Last 12 months: no values over a limit, 1 of 3 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due: About 28 days after each period: form Q quarterly (10 values)
Renewal application due: Oct 3, 2027 · 180 days before expiry; your permit may set another date
Last report on file: June 2026
Oct 2024 – Sep 2025: 0 values over a limit, 0 required values missing, 0 of 4 reports late

Limits in force (10)

Parameter	Statistic	Limit	Months
BOD, 5-day, 20 deg. C	weekly average	≤ 65 mg/L	all year
BOD, 5-day, 20 deg. C	monthly average	≤ 45 mg/L	all year
pH	minimum	≥ 6.5 SU	all year
pH	maximum	≤ 9 SU	all year
Solids, total suspended	weekly average	≤ 110 mg/L	all year
Solids, total suspended	monthly average	≤ 70 mg/L	all year
Nitrogen, ammonia total [as N]	daily maximum	report only (mg/L)	all year
Nitrogen, ammonia total [as N]	monthly average	report only (mg/L)	all year
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year

New limits from Apr 1, 2027

Parameter	New limit	New or tighter	Median, last 12 months	× new limit
E. coli, 30-day geometric mean	206 #/100mL (Apr–Dec)	new	—	—
E. coli, daily maximum	1030 #/100mL (Apr–Dec)	new	—	—
Nitrogen, ammonia total [as N], daily maximum	12.1 mg/L (Apr–Jun)	new	—	—
Nitrogen, ammonia total [as N], daily maximum	12.1 mg/L (Jul–Sep)	new	—	—
Nitrogen, ammonia total [as N], daily maximum	10.1 mg/L (Jan–Mar)	new	—	—
Nitrogen, ammonia total [as N], daily maximum	12.1 mg/L (Oct–Dec)	new	—	—
Nitrogen, ammonia total [as N], monthly average	1.8 mg/L (Apr–Jun)	new	—	—
Nitrogen, ammonia total [as N], monthly average	1.3 mg/L (Jul–Sep)	new	—	—
Nitrogen, ammonia total [as N], monthly average	2.7 mg/L (Jan–Mar)	new	—	—
Nitrogen, ammonia total [as N], monthly average	3.1 mg/L (Oct–Dec)	new	—	—

How strict are these limits?

pH, minimum at least 6.5 SU — stricter than 16% of 973 other minor industrial and other permits in Missouri; 84% have the same limit
Solids, total suspended, monthly average 70 mg/L — stricter than 12% of 846 other minor industrial and other permits in Missouri; 13% have the same limit
Solids, total suspended, weekly average 110 mg/L — stricter than 12% of 786 other minor industrial and other permits in Missouri; 14% have the same limit

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

Same industry: the 4 Electronic and Other Electrical Equipment permits in Missouri.

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

· Save this facility as a site · Superfund sites nearby · Your permits on one board

On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/MO0124494 · MCP: https://passage-data.com/mcp