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U.S. Army Corps of Engineers, Seattle District

Federal facility (Electric Services), Oldtown, Idaho. NPDES permit ID0028584, in force until Jul 31, 2029. Last 12 months: over a limit 2 times (last January 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: form M monthly (64 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 12 reports late

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

Period endingParameterReportedLimitOver by
January 2026Oil & Grease, daily maximum20 mg/L≤ 5 mg/L300%
January 2026Oil & Grease, daily maximum6.7 mg/L≤ 5 mg/L34%

Limits in force (65)

ParameterStatisticLimitMonths
Temperature, water deg. centigradedaily maximumreport only (deg C)all year
Temperature, water deg. centigrademonthly averagereport only (deg C)all year
Temperature, water deg. centigradedaily maximumreport only (deg C)all year
Temperature, water deg. centigrademonthly averagereport only (deg C)all year
Temperature, water deg. centigradedaily maximumreport only (deg C)all year
Temperature, water deg. centigrademonthly averagereport only (deg C)all year
Temperature, water deg. centigradedaily maximumreport only (deg C)all year
Temperature, water deg. centigrademonthly averagereport only (deg C)all year
Temperature, water deg. centigradedaily maximumreport only (deg C)all year
Temperature, water deg. centigrademonthly averagereport only (deg C)all year
Temperature, water deg. centigradedaily maximumreport only (deg C)all year
Temperature, water deg. centigrademonthly averagereport only (deg C)all year
Temperature, water deg. centigradedaily maximumreport only (deg C)Sep
Temperature, water deg. centigrademonthly averagereport only (deg C)Sep
Temperature, water deg. centigradedaily minimumreport only (deg C)Sep
Temperature, water deg. centigradedaily maximumreport only (deg C)Sep
Temperature, water deg. centigrademonthly averagereport only (deg C)Sep
pHinstantaneous minimumreport only (SU)all year
pHinstantaneous maximumreport only (SU)all year
pHinstantaneous minimumreport only (SU)all year
pHinstantaneous maximumreport only (SU)all year
pHinstantaneous minimum≥ 6.5 SUall year
pHinstantaneous maximum≤ 8.5 SUall year
pHinstantaneous minimum≥ 6.5 SUall year
pHinstantaneous maximum≤ 8.5 SUall year
pHinstantaneous minimum≥ 6.5 SUall year
pHinstantaneous maximum≤ 8.5 SUall year
pHinstantaneous minimum≥ 6.5 SUall year
pHinstantaneous maximum≤ 8.5 SUall year
pHinstantaneous minimum≥ 6.5 SUall year
pHinstantaneous maximum≤ 8.5 SUall year
pHinstantaneous minimum≥ 6.5 SUSep
pHinstantaneous maximum≤ 8.5 SUSep
pHinstantaneous minimum≥ 6.5 SUSep
pHinstantaneous maximum≤ 8.5 SUSep
Solids, total suspendeddaily maximumreport only (mg/L)Sep
Solids, total suspendedmonthly averagereport only (mg/L)Sep
Solids, total suspendeddaily maximumreport only (lb/d)Sep
Solids, total suspendedmonthly averagereport only (lb/d)Sep
Oil & Greasedaily maximum≤ 5 mg/Lall year
Oil & Greasedaily maximum≤ 5 mg/Lall year
Oil & Greasedaily maximum≤ 5 mg/Lall year
Oil & Greasedaily maximum≤ 5 mg/Lall year
Oil & Greasedaily maximum≤ 5 mg/Lall year
Oil & Greasedaily maximum≤ 5 mg/LSep
Polychlorinated biphenyls [PCBs]daily maximumreport only (ug/L)Jul, Dec
Polychlorinated biphenyls [PCBs]daily maximumreport only (ug/L)Sep
Chlorine, total residualdaily maximumreport only (ug/L)all year
Chlorine, total residualdaily maximumreport only (ug/L)Sep
Chlorine, total residualmonthly averagereport only (ug/L)Sep
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
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
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)Sep
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)Sep
Flow, in conduit or thru treatment plantdaily minimumreport only (MGD)Sep
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)Sep
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)Sep

How strict are these limits?

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

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/ID0028584 · MCP: https://passage-data.com/mcp