U.S. Army Corps of Engineers-McNary Lock and Dam

NPDES permit OR0055000 · Minor FEDERAL · effective, expires 2030-06-30 · EPA's file as of 2026-09-19

Check this month's numbers before you file
Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

EPA's record, 2025-09-01 to 2026-08-31

28values over a limit
0required values missing, on 0 form(s)
0of 158 forms filed late

Last period with anything received: 2026-07-31. Most often over: pH (27), Oil & Grease (1).

Reporting

Reports are due about 15 days after each monitoring period ends (the most common figure among OR permits in EPA's filings — check your permit).

Limits in force (299)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeMO MAX report only all year
001Thermal DischargeMO AVG <= 2830 mkcal/day Jun, Jul, Aug, Sep, Oct
001pHDAILY MN >= 7 SU all year
001pHDAILY MX <= 8.5 SU all year
001pHMO MAX report only all year
001Alkalinity, total [as CaCO3]QB report only all year
002pHDAILY MN >= 7 SU all year
002pHDAILY MX <= 8.5 SU all year
003pHDAILY MN >= 7 SU all year
003pHDAILY MX <= 8.5 SU all year
004Temperature, water deg. centigradeMO AVG report only all year
004Temperature, water deg. centigradeDAILY MX report only all year
004Temperature, water deg. centigradeMO AVG report only all year
004Temperature, water deg. centigradeDAILY MX report only all year
004Temperature, water deg. centigradeMX 7D AV report only all year
004Thermal DischargeMO AVG report only Jun, Jul, Aug, Sep, Oct
004pHDAILY MN >= 7 SU all year
004pHDAILY MX <= 8.5 SU all year
004Oil & GreaseMO AVG report only all year
004Oil & GreaseDAILY MX <= 5 mg/L all year
004Oil & GreaseDAILY MX report only all year
004Flow, in conduit or thru treatment plantMO AVG report only all year
004Flow, in conduit or thru treatment plantDAILY MX report only all year
004Chlorine, total residualMO AVG report only all year
004Chlorine, total residualDAILY MX report only all year
004Oil and grease visualVALUE report only all year
005Temperature, water deg. centigradeMO AVG report only all year
005Temperature, water deg. centigradeDAILY MX report only all year
005Temperature, water deg. centigradeMO AVG report only all year
005Temperature, water deg. centigradeDAILY MX report only all year
005Temperature, water deg. centigradeMX 7D AV report only all year
005Thermal DischargeMO AVG report only Jun, Jul, Aug, Sep, Oct
005pHDAILY MN >= 7 SU all year
005pHDAILY MX <= 8.5 SU all year
005Oil & GreaseMO AVG report only all year
005Oil & GreaseDAILY MX <= 5 mg/L all year
005Oil & GreaseDAILY MX report only all year
005Flow, in conduit or thru treatment plantMO AVG report only all year
005Flow, in conduit or thru treatment plantDAILY MX report only all year
005Chlorine, total residualMO AVG report only all year
005Chlorine, total residualDAILY MX report only all year
005Oil and grease visualVALUE report only all year
006Temperature, water deg. centigradeMO AVG report only all year
006Temperature, water deg. centigradeDAILY MX report only all year
006Temperature, water deg. centigradeMO AVG report only all year
006Temperature, water deg. centigradeDAILY MX report only all year
006Temperature, water deg. centigradeMX 7D AV report only all year
006Thermal DischargeMO AVG report only Jun, Jul, Aug, Sep, Oct
006pHDAILY MN >= 7 SU all year
006pHDAILY MX <= 8.5 SU all year
006Oil & GreaseMO AVG report only all year
006Oil & GreaseDAILY MX <= 5 mg/L all year
006Flow, in conduit or thru treatment plantMO AVG report only all year
006Flow, in conduit or thru treatment plantDAILY MX report only all year
006Chlorine, total residualMO AVG report only all year
006Chlorine, total residualDAILY MX report only all year
006Oil and grease visualVALUE report only all year
007Temperature, water deg. centigradeMO AVG report only all year
007Temperature, water deg. centigradeDAILY MX report only all year
007Temperature, water deg. centigradeMO AVG report only all year
007Temperature, water deg. centigradeDAILY MX report only all year
007Temperature, water deg. centigradeMX 7D AV report only all year
007Thermal DischargeMO AVG report only Jun, Jul, Aug, Sep, Oct
007pHDAILY MN >= 7 SU all year
007pHDAILY MX <= 8.5 SU all year
007Oil & GreaseMO AVG report only all year
007Oil & GreaseDAILY MX <= 5 mg/L all year
007Oil & GreaseDAILY MX report only all year
007Flow, in conduit or thru treatment plantMO AVG report only all year
007Flow, in conduit or thru treatment plantDAILY MX report only all year
007Chlorine, total residualMO AVG report only all year
007Chlorine, total residualDAILY MX report only all year
007Oil and grease visualVALUE report only all year
008Temperature, water deg. centigradeMO AVG report only all year
008Temperature, water deg. centigradeDAILY MX report only all year
008Temperature, water deg. centigradeMO AVG report only all year
008Temperature, water deg. centigradeDAILY MX report only all year
008Temperature, water deg. centigradeMX 7D AV report only all year
008Thermal DischargeMO AVG report only Jun, Jul, Aug, Sep, Oct
008pHDAILY MN >= 7 SU all year
008pHDAILY MX <= 8.5 SU all year
008Oil & GreaseMO AVG report only all year
008Oil & GreaseDAILY MX <= 5 mg/L all year
008Oil & GreaseDAILY MX report only all year
008Flow, in conduit or thru treatment plantMO AVG report only all year
008Flow, in conduit or thru treatment plantDAILY MX report only all year
008Chlorine, total residualMO AVG report only all year
008Chlorine, total residualDAILY MX report only all year
008Oil and grease visualVALUE report only all year
009Thermal DischargeMO AVG report only Jun, Jul, Aug, Sep, Oct
009pHDAILY MN >= 7 SU all year
009pHDAILY MX <= 8.5 SU all year
009Oil & GreaseMO AVG report only all year
009Oil & GreaseDAILY MX <= 5 mg/L all year
009Oil & GreaseDAILY MX report only all year
009Flow, in conduit or thru treatment plantMO AVG report only all year
009Flow, in conduit or thru treatment plantDAILY MX report only all year
009Chlorine, total residualMO AVG report only all year
009Chlorine, total residualDAILY MX report only all year
009Oil and grease visualVALUE report only all year
010Temperature, water deg. centigradeMO AVG report only all year
010Temperature, water deg. centigradeDAILY MX report only all year
010Temperature, water deg. centigradeMX 7D AV report only all year
010Thermal DischargeMO AVG report only Jun, Jul, Aug, Sep, Oct
010pHDAILY MN >= 7 SU all year
010pHDAILY MX <= 8.5 SU all year
010Oil & GreaseMO AVG report only all year
010Oil & GreaseDAILY MX <= 5 mg/L all year
010Oil & GreaseDAILY MX report only all year
010Flow, in conduit or thru treatment plantMO AVG report only all year
010Flow, in conduit or thru treatment plantDAILY MX report only all year
010Oil and grease visualVALUE report only all year
011Temperature, water deg. centigradeMO AVG report only all year
011Temperature, water deg. centigradeDAILY MX report only all year
011Temperature, water deg. centigradeMX 7D AV report only all year
011Thermal DischargeMO AVG report only Jun, Jul, Aug, Sep, Oct
011pHDAILY MN >= 7 SU all year
011pHDAILY MX <= 8.5 SU all year
011Alkalinity, total [as CaCO3]QB report only all year
011Oil & GreaseMO AVG report only all year
011Oil & GreaseDAILY MX <= 5 mg/L all year
011Oil & GreaseDAILY MX report only all year
011Flow, in conduit or thru treatment plantMO AVG report only all year
011Flow, in conduit or thru treatment plantDAILY MX report only all year
011Chlorine, total residualMO AVG report only all year
011Chlorine, total residualDAILY MX report only all year
011Oil and grease visualVALUE report only all year
012Temperature, water deg. centigradeMO AVG report only all year
012Temperature, water deg. centigradeDAILY MX report only all year
012Temperature, water deg. centigradeMX 7D AV report only all year
012Thermal DischargeMO AVG report only Jun, Jul, Aug, Sep, Oct
012pHDAILY MN >= 7 SU all year
012pHDAILY MX <= 8.5 SU all year
012Oil & GreaseMO AVG report only all year
012Oil & GreaseDAILY MX <= 5 mg/L all year
012Oil & GreaseDAILY MX report only all year
012Flow, in conduit or thru treatment plantMO AVG report only all year
012Flow, in conduit or thru treatment plantDAILY MX report only all year
012Oil and grease visualVALUE report only all year
013Temperature, water deg. centigradeMO AVG report only all year
013Temperature, water deg. centigradeDAILY MX report only all year
013Temperature, water deg. centigradeMO AVG report only all year
013Temperature, water deg. centigradeDAILY MX report only all year
013Temperature, water deg. centigradeMX 7D AV report only all year
013Thermal DischargeMO AVG report only Jun, Jul, Aug, Sep, Oct
013pHDAILY MN >= 7 SU all year
013pHDAILY MX <= 8.5 SU all year
013Oil & GreaseMO AVG report only all year
013Oil & GreaseDAILY MX <= 5 mg/L all year
013Oil & GreaseDAILY MX report only all year
013Flow, in conduit or thru treatment plantMO AVG report only all year
013Flow, in conduit or thru treatment plantDAILY MX report only all year
013Oil and grease visualMO AVG report only all year
014Temperature, water deg. centigradeMO AVG report only all year
014Temperature, water deg. centigradeDAILY MX report only all year
014Temperature, water deg. centigradeMO AVG report only all year
014Temperature, water deg. centigradeDAILY MX report only all year
014Temperature, water deg. centigradeMX 7D AV report only all year
014Thermal DischargeMO AVG report only Jun, Jul, Aug, Sep, Oct
014pHDAILY MN >= 7 SU all year
014pHDAILY MX <= 8.5 SU all year
014Oil & GreaseMO AVG report only all year
014Oil & GreaseDAILY MX <= 5 mg/L all year
014Oil & GreaseDAILY MX report only all year
014Flow, in conduit or thru treatment plantMO AVG report only all year
014Flow, in conduit or thru treatment plantDAILY MX report only all year
014Oil and grease visualVALUE report only all year
015Temperature, water deg. centigradeMO AVG report only all year
015Temperature, water deg. centigradeDAILY MX report only all year
015Temperature, water deg. centigradeMO AVG report only all year
015Temperature, water deg. centigradeDAILY MX report only all year
015Temperature, water deg. centigradeMX 7D AV report only all year
015Thermal DischargeMO AVG report only Jun, Jul, Aug, Sep, Oct
015pHDAILY MN >= 7 SU all year
015pHDAILY MX <= 8.5 SU all year
015Oil & GreaseMO AVG report only all year
015Oil & GreaseDAILY MX <= 5 mg/L all year
015Oil & GreaseDAILY MX report only all year
015Flow, in conduit or thru treatment plantMO AVG report only all year
015Flow, in conduit or thru treatment plantDAILY MX report only all year
015Oil and grease visualVALUE report only all year
016Temperature, water deg. centigradeMO AVG report only all year
016Temperature, water deg. centigradeDAILY MX report only all year
016Temperature, water deg. centigradeMO AVG report only all year
016Temperature, water deg. centigradeDAILY MX report only all year
016Temperature, water deg. centigradeMX 7D AV report only all year
016Thermal DischargeMO AVG report only Jun, Jul, Aug, Sep, Oct
016pHDAILY MN >= 7 SU all year
016pHDAILY MX <= 8.5 SU all year
016Oil & GreaseMO AVG report only all year
016Oil & GreaseDAILY MX <= 5 mg/L all year
016Flow, in conduit or thru treatment plantMO AVG report only all year
016Flow, in conduit or thru treatment plantDAILY MX report only all year
017Temperature, water deg. centigradeMO AVG report only all year
017Temperature, water deg. centigradeDAILY MX report only all year
017Temperature, water deg. centigradeMO AVG report only all year
017Temperature, water deg. centigradeDAILY MX report only all year
017Temperature, water deg. centigradeMX 7D AV report only all year
017Thermal DischargeMO AVG report only Jun, Jul, Aug, Sep, Oct
017pHDAILY MN >= 7 SU all year
017pHDAILY MX <= 8.5 SU all year
017Oil & GreaseMO AVG report only all year
017Oil & GreaseDAILY MX <= 5 mg/L all year
017Oil & GreaseDAILY MX report only all year
017Flow, in conduit or thru treatment plantMO AVG report only all year
017Flow, in conduit or thru treatment plantDAILY MX report only all year
017Oil and grease visualVALUE report only all year
018Temperature, water deg. centigradeMO AVG report only all year
018Temperature, water deg. centigradeDAILY MX report only all year
018Temperature, water deg. centigradeMO AVG report only all year
018Temperature, water deg. centigradeDAILY MX report only all year
018Temperature, water deg. centigradeMX 7D AV report only all year
018Thermal DischargeMO AVG report only Jun, Jul, Aug, Sep, Oct
018pHDAILY MN >= 7 SU all year
018pHDAILY MX <= 8.5 SU all year
018Oil & GreaseMO AVG report only all year
018Oil & GreaseDAILY MX <= 5 mg/L all year
018Oil & GreaseDAILY MX report only all year
018Flow, in conduit or thru treatment plantMO AVG report only all year
018Flow, in conduit or thru treatment plantDAILY MX report only all year
018Oil and grease visualVALUE report only all year
019Temperature, water deg. centigradeMO AVG report only all year
019Temperature, water deg. centigradeDAILY MX report only all year
019Temperature, water deg. centigradeMO AVG report only all year
019Temperature, water deg. centigradeDAILY MX report only all year
019Temperature, water deg. centigradeMX 7D AV report only all year
019Thermal DischargeMO AVG report only Jun, Jul, Aug, Sep, Oct
019pHDAILY MN >= 7 SU all year
019pHDAILY MX <= 8.5 SU all year
019Oil & GreaseMO AVG report only all year
019Oil & GreaseDAILY MX report only all year
019Oil & GreaseDAILY MX report only all year
019Flow, in conduit or thru treatment plantMO AVG report only all year
019Flow, in conduit or thru treatment plantDAILY MX report only all year
019Oil and grease visualVALUE report only all year
020Temperature, water deg. centigradeMO AVG report only all year
020Temperature, water deg. centigradeDAILY MX report only all year
020Temperature, water deg. centigradeMO AVG report only all year
020Temperature, water deg. centigradeDAILY MX report only all year
020Temperature, water deg. centigradeMX 7D AV report only all year
020Thermal DischargeMO AVG report only Jun, Jul, Aug, Sep, Oct
020pHDAILY MN >= 7 SU all year
020pHDAILY MX <= 8.5 SU all year
020Oil & GreaseMO AVG report only all year
020Oil & GreaseDAILY MX report only all year
020Oil & GreaseDAILY MX report only all year
020Flow, in conduit or thru treatment plantMO AVG report only all year
020Flow, in conduit or thru treatment plantDAILY MX report only all year
020Oil and grease visualVALUE report only all year
023Temperature, water deg. centigradeMO AVG report only all year
023Temperature, water deg. centigradeDAILY MX report only all year
023Temperature, water deg. centigradeMX 7D AV report only all year
023Thermal DischargeMO AVG report only Jun, Jul, Aug, Sep, Oct
023pHDAILY MN >= 7 SU all year
023pHDAILY MX <= 8.5 SU all year
023Flow, in conduit or thru treatment plantMO AVG report only all year
023Flow, in conduit or thru treatment plantDAILY MX report only all year
023Chlorine, total residualMO AVG report only all year
023Chlorine, total residualDAILY MX report only all year
024Temperature, water deg. centigradeMO AVG report only all year
024Temperature, water deg. centigradeDAILY MX report only all year
024Temperature, water deg. centigradeMX 7D AV report only all year
024Thermal DischargeMO AVG report only Jun, Jul, Aug, Sep, Oct
024pHDAILY MN >= 7 SU all year
024pHDAILY MX <= 8.5 SU all year
024Flow, in conduit or thru treatment plantMO AVG report only all year
024Flow, in conduit or thru treatment plantDAILY MX report only all year
024Chlorine, total residualMO AVG report only all year
024Chlorine, total residualDAILY MX report only all year
025Temperature, water deg. centigradeMO AVG report only all year
025Temperature, water deg. centigradeDAILY MX report only all year
025Temperature, water deg. centigradeMX 7D AV report only all year
025Thermal DischargeMO AVG report only Jun, Jul, Aug, Sep, Oct
025pHDAILY MN >= 7 SU all year
025pHDAILY MX <= 8.5 SU all year
025Flow, in conduit or thru treatment plantMO AVG report only all year
025Flow, in conduit or thru treatment plantDAILY MX report only all year
025Chlorine, total residualMO AVG report only all year
025Chlorine, total residualDAILY MX report only all year
026Temperature, water deg. centigradeMO AVG report only all year
026Temperature, water deg. centigradeDAILY MX report only all year
026Temperature, water deg. centigradeMX 7D AV report only all year
026Thermal DischargeMO AVG report only Jun, Jul, Aug, Sep, Oct
026pHDAILY MN >= 7 SU all year
026pHDAILY MX <= 8.5 SU all year
026Flow, in conduit or thru treatment plantMO AVG report only all year
026Flow, in conduit or thru treatment plantDAILY MX report only all year
026Chlorine, total residualMO AVG report only all year
026Chlorine, total residualDAILY MX report only all year
027Temperature, water deg. centigradeMO AVG report only all year
027Temperature, water deg. centigradeDAILY MX report only all year
027Temperature, water deg. centigradeMX 7D AV report only all year
027Thermal DischargeMO AVG report only Jun, Jul, Aug, Sep, Oct
027pHDAILY MN >= 7 SU all year
027pHDAILY MX <= 8.5 SU all year
027Flow, in conduit or thru treatment plantMO AVG report only all year
027Flow, in conduit or thru treatment plantDAILY MX report only all year
027Chlorine, total residualMO AVG report only all year
027Chlorine, total residualDAILY MX report only all year

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states