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Oregon Health Sciences University

Noncommercial Research Organizations, Portland, Oregon. NPDES permit OR0034371 expired Aug 31, 2026; its limits still apply. Last 12 months: over a limit 8 times (last July 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (35 values), form B monthly (2 values), form G monthly (6 values), form Q quarterly (1 value)
Last report on file
September 2026
Oct 2024 – Sep 2025
1 value over a limit, 0 required values missing, 0 of 53 reports late

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

Period endingParameterReportedLimitOver by
November 2025BOD, 5-day, 20 deg. C, monthly average4.6 mg/L≤ 4 mg/L15%
February 2026pH, daily minimum5 SU≥ 6.5 SU—
May 2026Zinc, total [as Zn], daily maximum100 ug/L≤ 37 ug/L170%
May 2026Zinc, total [as Zn], monthly average43 ug/L≤ 18.5 ug/L132%
June 2026Zinc, total [as Zn], daily maximum110 ug/L≤ 37 ug/L197%
June 2026Zinc, total [as Zn], monthly average32 ug/L≤ 18.5 ug/L73%
July 2026Zinc, total [as Zn], daily maximum110 ug/L≤ 37 ug/L197%
July 2026Zinc, total [as Zn], monthly average34 ug/L≤ 18.5 ug/L84%

Limits in force (44)

ParameterStatisticLimitMonths
Temperature, water deg. centigradedaily maximumreport only (deg C)all year
Temperature, water deg. centigradedaily maximumreport only (deg C)all year
Temperature, water deg. centigrademaximum 7-day averagereport only (deg C)all year
Temperature, water deg. centigrademaximum 7-day averagereport only (deg C)all year
BOD, 5-day, 20 deg. Cmonthly average≤ 4 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 1.2 lb/dall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 2.4 lb/dall year
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cweekly average≤ 6 mg/Lall year
BOD, 5-day, 20 deg. Cweekly average≤ 1.8 lb/dall year
pHdaily minimum≥ 6.5 SUall year
pHdaily maximum≤ 8.5 SUall year
pHmonthly minimumreport only (SU)all year
pHmonthly maximumreport only (SU)all year
Solids, total suspendedmonthly average≤ 2 mg/Lall year
Solids, total suspendedmonthly average≤ .58 lb/dall year
Solids, total suspendeddaily maximum≤ 1.2 lb/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendedweekly average≤ 3 mg/Lall year
Solids, total suspendedweekly average≤ .87 lb/dall year
Nitrogen, ammonia total [as N]monthly average≤ .8 mg/Lall year
Nitrogen, ammonia total [as N]daily maximum≤ 2 mg/Lall year
Molybdenum, total [as Mo]monthly averagereport only (mg/L)all year
Molybdenum, total [as Mo]daily maximumreport only (mg/L)all year
Zinc, total [as Zn]monthly average≤ 18.5 ug/Lall year
Zinc, total [as Zn]daily maximum≤ 37 ug/Lall year
1,2-cis-Dichloroethenemonthly averagereport only (mg/L)all year
1,2-cis-Dichloroethenedaily maximumreport only (mg/L)all year
Ultraviolet light intensitydaily average minimumreport only (mW/cm2)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
E. colimonthly geometric mean≤ 126 #/100mLall year
E. colidaily maximum≤ 406 #/100mLall year
E. colimonthly geometric mean≤ 126 #/100mLall year
E. colidaily maximumreport only (#/100mL)all year
Mercury, total recoverablequarterly maximum≤ .001 ug/L (alert, not enforceable)all year
Trichloroethenemonthly averagereport only (mg/L)all year
Trichloroethenedaily maximumreport only (mg/L)all year
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year
Solids, suspended percent removalmonthly average minimum≥ 85 %all year
Tetrachloroethane, totalmonthly averagereport only (mg/L)all year
Tetrachloroethane, totaldaily maximumreport only (mg/L)all year

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.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/OR0034371 · MCP: https://passage-data.com/mcp