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US Doi

Federal facility (Noncommercial Research Organizations), Wellsboro, Pennsylvania. NPDES permit PA0027677, in force until Jan 31, 2030. Last 12 months: over a limit once (last May 2026), 8 required values missing, 3 of 10 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: June 2026
Oct 2024 – Sep 2025: 0 values over a limit, 16 required values missing, 4 of 13 reports late

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

Period ending	Parameter	Reported	Limit	Over by
May 2026	Oxygen, dissolved [DO], instantaneous minimum	5.5 mg/L	≥ 6 mg/L	8%

Limits in force (9)

Parameter	Statistic	Limit	Months
Oxygen, dissolved [DO]	instantaneous minimum	≥ 6 mg/L	all year
pH	instantaneous minimum	≥ 6 SU	all year
pH	instantaneous maximum	≤ 9 SU	all year
Solids, total suspended	monthly average	≤ 10 mg/L	all year
Nitrogen, ammonia total [as N]	monthly average	≤ 1.3 mg/L	May–Oct
Nitrogen, ammonia total [as N]	monthly average	≤ 3.9 mg/L	Jan, Feb, Mar, Apr, Nov, Dec
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
BOD, carbonaceous [5 day, 20 C]	monthly average	≤ 4.3 mg/L	all year

How strict are these limits?

BOD, carbonaceous [5 day, 20 C], monthly average 4.3 mg/L — stricter than 100% of 64 other minor federal facilities nationwide
Nitrogen, ammonia total [as N], monthly average 1.3 mg/L — stricter than 86% of 76 other minor federal facilities nationwide; 1% have the same limit
Solids, total suspended, monthly average 10 mg/L — stricter than 84% of 173 other minor federal facilities nationwide; 9% have the same limit

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

Same industry: the 7 Engineering, Accounting, Research and Management Services permits in Pennsylvania.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/PA0027677 · MCP: https://passage-data.com/mcp