LITTLE GOOSE LOCK AND DAM - USACE

NPDES permit WA0026786 · Minor FEDERAL · effective, expires 2027-03-31 · 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

0values over a limit
22required values missing, on 12 form(s)
46of 169 forms filed late

Last period with anything received: 2026-07-31.

Reporting

Reports are due about 20 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (199)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigrade7E report only all year
001Temperature, water deg. centigradeMX DA AV report only all year
001Temperature, water deg. centigradeMO MAX report only all year
001Temperature, water deg. centigradeMO AVG report only all year
001pHINST MIN >= 6.5 SU all year
001pHINST MAX <= 8.5 SU all year
001pHINST MIN >= 6.5 SU all year
001pHINST MAX <= 8.5 SU all year
001Oil & GreaseDAILY MX <= 5 mg/L all year
001Oil & GreaseDAILY MX <= 5 mg/L all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
002Temperature, water deg. centigrade7E report only all year
002Temperature, water deg. centigradeMX DA AV report only all year
002Temperature, water deg. centigradeMO MAX report only all year
002Temperature, water deg. centigradeMO AVG report only all year
002pHINST MIN >= 6.5 SU all year
002pHINST MAX <= 8.5 SU all year
002pHINST MIN >= 6.5 SU all year
002pHINST MAX <= 8.5 SU all year
002Oil & GreaseDAILY MX <= 5 mg/L all year
002Oil & GreaseDAILY MX <= 5 mg/L all year
002Flow, in conduit or thru treatment plantMO AVG report only all year
003Temperature, water deg. centigradeMX DA AV report only all year
003Temperature, water deg. centigradeMX 7D AV report only all year
003Temperature, water deg. centigradeMO AVG report only all year
003Temperature, water deg. centigradeMO MAX report only all year
003Temperature, water deg. centigrade7E report only all year
003Temperature, water deg. centigradeMX DA AV report only all year
003Temperature, water deg. centigradeMO MAX report only all year
003Temperature, water deg. centigradeMO AVG report only all year
003pHINST MIN >= 6.5 SU all year
003pHINST MAX <= 8.5 SU all year
003pHINST MIN >= 6.5 SU all year
003pHINST MAX <= 8.5 SU all year
003Oil & GreaseMO AVG <= 5 mg/L all year
003Oil & GreaseDAILY MX <= 5 mg/L all year
004Temperature, water deg. centigradeMX DA AV report only all year
004Temperature, water deg. centigradeMX 7D AV report only all year
004Temperature, water deg. centigradeMO AVG report only all year
004Temperature, water deg. centigradeMO MAX report only all year
004Temperature, water deg. centigrade7E report only all year
004Temperature, water deg. centigradeMX DA AV report only all year
004Temperature, water deg. centigradeMO MAX report only all year
004Temperature, water deg. centigradeMO AVG report only all year
004pHINST MIN >= 6.5 SU all year
004pHINST MAX <= 8.5 SU all year
004pHINST MIN >= 6.5 SU all year
004pHINST MAX <= 8.5 SU all year
004Oil & GreaseDAILY MX <= 5 mg/L all year
004Oil & GreaseDAILY MX <= 5 mg/L all year
004Flow, in conduit or thru treatment plantMO AVG report only all year
005Temperature, water deg. centigradeMX DA AV report only all year
005Temperature, water deg. centigradeMX 7D AV report only all year
005Temperature, water deg. centigradeMO AVG report only all year
005Temperature, water deg. centigradeMO MAX report only all year
005Temperature, water deg. centigrade7E report only all year
005Temperature, water deg. centigradeMX DA AV report only all year
005Temperature, water deg. centigradeMO MAX report only all year
005Temperature, water deg. centigradeMO AVG report only all year
005pHINST MIN >= 6.5 SU all year
005pHINST MAX <= 8.5 SU all year
005pHINST MIN >= 6.5 SU all year
005pHINST MAX <= 8.5 SU all year
005Oil & GreaseDAILY MX <= 5 mg/L all year
005Oil & GreaseDAILY MX <= 5 mg/L all year
005Flow, in conduit or thru treatment plantMO AVG report only all year
006Temperature, water deg. centigradeMX DA AV report only all year
006Temperature, water deg. centigradeMX 7D AV report only all year
006Temperature, water deg. centigradeMO AVG report only all year
006Temperature, water deg. centigradeMO MAX report only all year
006Temperature, water deg. centigrade7E report only all year
006Temperature, water deg. centigradeMX DA AV report only all year
006Temperature, water deg. centigradeMO MAX report only all year
006Temperature, water deg. centigradeMO AVG report only all year
006pHINST MIN >= 6.5 SU all year
006pHINST MAX <= 8.5 SU all year
006pHINST MIN >= 6.5 SU all year
006pHINST MAX <= 8.5 SU all year
006Oil & GreaseDAILY MX <= 5 mg/L all year
006Oil & GreaseDAILY MX <= 5 mg/L all year
006Flow, in conduit or thru treatment plantMO AVG report only all year
007Temperature, water deg. centigradeMX DA AV report only all year
007Temperature, water deg. centigradeMX 7D AV report only all year
007Temperature, water deg. centigradeMO AVG report only all year
007Temperature, water deg. centigradeMO MAX report only all year
007Temperature, water deg. centigrade7E report only all year
007Temperature, water deg. centigradeMX DA AV report only all year
007Temperature, water deg. centigradeMO MAX report only all year
007Temperature, water deg. centigradeMO AVG report only all year
007pHINST MIN >= 6.5 SU all year
007pHINST MAX <= 8.5 SU all year
007pHINST MIN >= 6.5 SU all year
007pHINST MAX <= 8.5 SU all year
007Oil & GreaseDAILY MX <= 5 mg/L all year
007Oil & GreaseDAILY MX <= 5 mg/L all year
007Flow, in conduit or thru treatment plantMO AVG report only all year
008Temperature, water deg. centigradeMX DA AV report only all year
008Temperature, water deg. centigradeMX 7D AV report only all year
008Temperature, water deg. centigradeMO AVG report only all year
008Temperature, water deg. centigradeMO MAX report only all year
008Temperature, water deg. centigrade7E report only all year
008Temperature, water deg. centigradeMX DA AV report only all year
008Temperature, water deg. centigradeMO MAX report only all year
008Temperature, water deg. centigradeMO AVG report only all year
008pHINST MIN >= 6.5 SU all year
008pHINST MAX <= 8.5 SU all year
008pHINST MIN >= 6.5 SU all year
008pHINST MAX <= 8.5 SU all year
008Oil & GreaseDAILY MX <= 5 mg/L all year
008Oil & GreaseDAILY MX <= 5 mg/L all year
008Flow, in conduit or thru treatment plantMO AVG report only all year
009Temperature, water deg. centigradeMX DA AV report only all year
009Temperature, water deg. centigradeMX 7D AV report only all year
009Temperature, water deg. centigradeMO AVG report only all year
009Temperature, water deg. centigradeMO MAX report only all year
009Temperature, water deg. centigrade7E report only all year
009Temperature, water deg. centigradeMX DA AV report only all year
009Temperature, water deg. centigradeMO MAX report only all year
009Temperature, water deg. centigradeMO AVG report only all year
009pHINST MIN >= 6.5 SU all year
009pHINST MAX <= 8.5 SU all year
009pHINST MIN >= 6.5 SU all year
009pHINST MAX <= 8.5 SU all year
009Oil & GreaseDAILY MX <= 5 mg/L all year
009Oil & GreaseDAILY MX <= 5 mg/L all year
009Flow, in conduit or thru treatment plantMO AVG report only all year
010Temperature, water deg. centigradeMX DA AV report only all year
010Temperature, water deg. centigradeMX 7D AV report only all year
010Temperature, water deg. centigradeMO AVG report only all year
010Temperature, water deg. centigradeMO MAX report only all year
010Temperature, water deg. centigrade7E report only all year
010Temperature, water deg. centigradeMX DA AV report only all year
010Temperature, water deg. centigradeMO MAX report only all year
010Temperature, water deg. centigradeMO AVG report only all year
010pHINST MIN >= 6.5 SU all year
010pHINST MAX <= 8.5 SU all year
010pHINST MIN >= 6.5 SU all year
010pHINST MAX <= 8.5 SU all year
010Oil & GreaseDAILY MX <= 5 mg/L all year
010Oil & GreaseDAILY MX <= 5 mg/L all year
010Flow, in conduit or thru treatment plantMO AVG report only all year
011Temperature, water deg. centigrade7E report only all year
011Temperature, water deg. centigradeMX DA AV report only all year
011Temperature, water deg. centigradeMO MAX report only all year
011Temperature, water deg. centigradeMO AVG report only all year
011Temperature, water deg. centigrade7E report only all year
011Temperature, water deg. centigradeMX DA AV report only all year
011Temperature, water deg. centigradeMO MAX report only all year
011Temperature, water deg. centigradeMO AVG report only all year
011pHINST MIN >= 6.5 SU all year
011pHINST MAX <= 8.5 SU all year
011pHINST MIN >= 6.5 SU all year
011pHINST MAX <= 8.5 SU all year
011Oil & GreaseDAILY MX <= 5 mg/L all year
011Oil & GreaseDAILY MX <= 5 mg/L all year
011Flow, in conduit or thru treatment plantMO AVG report only all year
012Temperature, water deg. centigrade7E report only all year
012Temperature, water deg. centigradeMX DA AV report only all year
012Temperature, water deg. centigradeDAILY MX <= 5 deg C all year
012Temperature, water deg. centigradeMO MAX report only all year
012Temperature, water deg. centigrade7E report only all year
012Temperature, water deg. centigradeMX DA AV report only all year
012Temperature, water deg. centigradeMO MAX report only all year
012Temperature, water deg. centigradeMO AVG report only all year
012pHINST MIN >= 6.5 SU all year
012pHINST MAX <= 8.5 SU all year
012pHINST MIN >= 6.5 SU all year
012pHINST MAX <= 8.5 SU all year
012Oil & GreaseDAILY MX <= 5 mg/L all year
012Oil & GreaseDAILY MX <= 5 mg/L all year
014Temperature, water deg. centigrade7E report only all year
014Temperature, water deg. centigradeMX DA AV report only all year
014Temperature, water deg. centigradeMO MAX report only all year
014Temperature, water deg. centigradeMO AVG report only all year
014Temperature, water deg. centigrade7E report only all year
014Temperature, water deg. centigradeMX DA AV report only all year
014Temperature, water deg. centigradeMO MAX report only all year
014Temperature, water deg. centigradeMO AVG report only all year
014pHINST MIN >= 6.5 SU all year
014pHINST MAX <= 8.5 SU all year
014pHINST MIN >= 6.5 SU all year
014pHINST MAX <= 8.5 SU all year
014Oil & GreaseDAILY MX <= 5 mg/L all year
014Oil & GreaseDAILY MX <= 5 mg/L all year
014Flow, in conduit or thru treatment plantMO AVG report only all year
015Temperature, water deg. centigrade7E report only all year
015Temperature, water deg. centigradeMX DA AV report only all year
015Temperature, water deg. centigradeMO MAX report only all year
015Temperature, water deg. centigradeMO AVG report only all year
015pHINST MIN >= 6.5 SU all year
015pHINST MAX <= 8.5 SU all year
015pHINST MIN >= 6.5 SU all year
015pHINST MAX <= 8.5 SU all year
015Oil & GreaseDAILY MX <= 5 mg/L all year
015Oil & GreaseDAILY MX <= 5 mg/L all year
015Flow, in conduit or thru treatment plantMO AVG report only all year
015Chemical oxygen demand [COD]QRTR AVG report only all year
SUMThermal DischargeMO AVG <= 3230 mkcal/day Jun, Jul, Aug, Sep, Oct
SUMOil and grease visualMO MAX report only all year

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