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Former Stewart Manufacturing Site

Industrial Organic Chemicals, Indianapolis, Indiana. NPDES permit IN0064902, in force until Dec 31, 2030. Last 12 months: no values over a limit, 1 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due: About 28 days after each period: form A monthly (8 values)
Last report on file: August 2026
Oct 2024 – Sep 2025: 0 values over a limit, 0 required values missing, 1 of 12 reports late

Limits in force (8)

Parameter	Statistic	Limit	Months
pH	daily minimum	≥ 6 SU	all year
pH	daily maximum	≤ 9 SU	all year
Tetrachloroethylene	daily maximum	≤ .005 mg/L	all year
1,1,1-Trichloroethane	daily maximum	≤ .005 mg/L	all year
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year
Trichloroethene	daily maximum	≤ .005 mg/L	all year
Flow, total	monthly total	report only (Mgal/mo)	all year

How strict are these limits?

1,1,1-Trichloroethane, daily maximum .005 mg/L — stricter than 89% of 28 other minor industrial and other permits nationwide; 4% have the same limit
Tetrachloroethylene, daily maximum .005 mg/L — stricter than 70% of 40 other minor industrial and other permits nationwide; 8% have the same limit

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

Same industry: the 45 Chemicals and Allied Products permits in Indiana.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/IN0064902 · MCP: https://passage-data.com/mcp