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Rehoboth Beach Wastewater Treatment Plant

Sewage treatment plant, major discharger, Rehoboth Beach, Delaware. NPDES permit DE0020028 expired Jun 30, 2022; its limits still apply. Last 12 months: no values over a limit, 34 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (34 values)
Last report on file
June 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 12 reports late

Limits in force (34)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]daily minimum≥ 5 mg/Lall year
BOD, 5-day, 20 deg. Cdaily average≤ 15 mg/Lall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 23 mg/Lall year
BOD, 5-day, 20 deg. Cdaily average≤ 425 lb/dall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 652 lb/dall year
BOD, 5-day, 20 deg. Cdaily averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all year
BOD, 5-day, 20 deg. Cdaily averagereport only (lb/d)all year
BOD, 5-day, 20 deg. Cdaily maximumreport only (lb/d)all year
pHdaily minimum≥ 6 SUall year
pHdaily maximum≤ 9 SUall year
Solids, total suspendeddaily average≤ 15 mg/Lall year
Solids, total suspendeddaily maximum≤ 23 mg/Lall year
Solids, total suspendeddaily average≤ 425 lb/dall year
Solids, total suspendeddaily maximum≤ 652 lb/dall year
Solids, total suspendeddaily averagereport only (mg/L)all year
Solids, total suspendeddaily maximumreport only (mg/L)all year
Solids, total suspendeddaily averagereport only (lb/d)all year
Solids, total suspendeddaily maximumreport only (lb/d)all year
Nitrogen, total [as N]daily averagereport only (mg/L)all year
Nitrogen, total [as N]daily maximumreport only (mg/L)all year
Nitrogen, total [as N]daily averagereport only (lb/d)all year
Nitrogen, total [as N]daily maximumreport only (lb/d)all year
Nitrogen, total [as N]annual maximum≤ 24300 lb/yrall year
Phosphorus, total [as P]daily averagereport only (mg/L)all year
Phosphorus, total [as P]daily maximumreport only (mg/L)all year
Phosphorus, total [as P]daily averagereport only (lb/d)all year
Phosphorus, total [as P]daily maximumreport only (lb/d)all year
Phosphorus, total [as P]annual maximum≤ 5308 lb/yrall year
Enterococci: group D, MF trans, M-E, EIAdaily average≤ 10 CFU/100mLall year
Enterococci: group D, MF trans, M-E, EIAdaily maximumreport only (CFU/100mL)all year
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Chlorine, total residualdaily maximum≤ 0 mg/Lall year

How strict are these limits?

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/DE0020028 · MCP: https://passage-data.com/mcp