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Hatfield Marine Science Center, Oregon State University

Noncommercial Research Organizations, Newport, Oregon. NPDES permit OR0043281 expired May 31, 2015; its limits still apply. Last 12 months: no values over a limit, 11 of 48 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form A monthly (5 values), outfall 001 form B monthly (2 values), outfall 001 form I monthly (1 value), outfall 002 form A monthly (6 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
1 value over a limit, 0 required values missing, 9 of 48 reports late

Limits in force (14)

ParameterStatisticLimitMonthsOutfall
pHdaily minimum≥ 6 SUall year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, settleabledaily maximum≤ .1 mL/Lall year001
Chlorine produced oxidantsmonthly average≤ .1 mg/Lall year001
Chlorine produced oxidantsdaily maximum≤ .1 mg/Lall year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
pHdaily minimum≥ 6.5 SUall year002
pHdaily maximum≤ 8.5 SUall year002
Solids, total suspendedmonthly average≤ 30 mg/Lall year002
Chlorine produced oxidantsmonthly average≤ .1 mg/Lall year002
Chlorine produced oxidantsdaily maximum≤ .1 mg/Lall year002
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year002

How strict are these limits?

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

Same industry: the 3 Engineering, Accounting, Research and Management Services permits in Oregon.

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/OR0043281 · MCP: https://passage-data.com/mcp