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Indian River Power LLC

Electric Services, major discharger, Dagsboro, Delaware. NPDES permit DE0050580 expired Oct 31, 2024; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 027 form A monthly (22 values), outfall 030 form A monthly (13 values)
Last report on file
July 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 24 reports late

Limits in force (35)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitdaily averagereport only (deg F)all year027
Temperature, water deg. fahrenheitdaily maximum≤ 96 deg Fall year027
pHdaily minimum≥ 6.5 SUall year027
pHdaily maximum≤ 8.5 SUall year027
Arsenic, dissolved [as As]daily averagereport only (ug/L)all year027
Arsenic, dissolved [as As]daily maximumreport only (ug/L)all year027
Chromium, total [as Cr]daily average≤ .2 mg/Lall year027
Chromium, total [as Cr]daily maximum≤ .2 mg/Lall year027
Copper, dissolved [as Cu]daily average≤ 4.9 ug/Lall year027
Copper, dissolved [as Cu]daily maximum≤ 9.8 ug/Lall year027
Nickel, dissolved [as Ni]daily averagereport only (ug/L)all year027
Nickel, dissolved [as Ni]daily maximumreport only (ug/L)all year027
Silver, dissolved [as Ag]daily averagereport only (ug/L)all year027
Silver, dissolved [as Ag]daily maximumreport only (ug/L)all year027
Zinc, total [as Zn]daily average≤ 1 mg/Lall year027
Zinc, total [as Zn]daily maximum≤ 1 mg/Lall year027
Selenium, total [as Se]daily averagereport only (ug/L)all year027
Selenium, total [as Se]daily maximumreport only (ug/L)all year027
Flow, in conduit or thru treatment plantdaily maximum≤ 8.5 MGDall year027
Chlorine, free availabledaily average≤ .2 mg/Lall year027
Chlorine, free availabledaily maximum≤ .5 mg/Lall year027
Chlorinationdaily maximum≤ 2 hr/dall year027
pHdaily minimum≥ 6.5 SUall year030
pHdaily maximum≤ 8.5 SUall year030
Solids, total suspendeddaily average≤ 30 mg/Lall year030
Solids, total suspendeddaily maximum≤ 100 mg/Lall year030
Solids, total suspendeddaily average≤ 180 lb/dall year030
Solids, total suspendeddaily maximum≤ 600 lb/dall year030
Oil & Greasedaily average≤ 10 mg/Lall year030
Oil & Greasedaily maximum≤ 15 mg/Lall year030
Copper, total [as Cu]daily average≤ .5 mg/Lall year030
Copper, total [as Cu]daily maximum≤ .5 mg/Lall year030
Iron, total [as Fe]daily average≤ 1 mg/Lall year030
Iron, total [as Fe]daily maximum≤ 1 mg/Lall year030
Flow, in conduit or thru treatment plantdaily maximum≤ .72 MGDall year030

How strict are these limits?

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

Same industry: the 3 Electric Services permits in Delaware.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/DE0050580 · MCP: https://passage-data.com/mcp