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Milton Water Reclamation Facility

Sewage treatment plant, Milton, Delaware. NPDES permit DE0021491 expired Apr 30, 2016; its limits still apply. Last 12 months: no values over a limit, 23 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (23 values)
Last report on file
June 2026
Oct 2024 – Sep 2025
10 values over a limit, 1 required value missing, 1 of 12 reports late

Limits in force (27)

ParameterStatisticLimitMonths
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≤ 44 lb/dall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 67 lb/dall 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≤ 44 lb/dall year
Solids, total suspendeddaily maximum≤ 67 lb/dall year
Nitrogen, total [as N]daily averagereport only (mg/L)Jan, Feb, Mar, Apr, Oct, Nov, Dec
Nitrogen, total [as N]daily averagereport only (mg/L)May–Sep
Nitrogen, total [as N]daily maximumreport only (mg/L)Jan, Feb, Mar, Apr, Oct, Nov, Dec
Nitrogen, total [as N]daily maximumreport only (mg/L)May–Sep
Nitrogen, total [as N]daily averagereport only (lb/d)Jan, Feb, Mar, Apr, Oct, Nov, Dec
Nitrogen, total [as N]daily average≤ 36.5 lb/dMay–Sep
Nitrogen, total [as N]daily maximumreport only (lb/d)Jan, Feb, Mar, Apr, Oct, Nov, Dec
Nitrogen, total [as N]daily maximumreport only (lb/d)May–Sep
Nitrogen, total [as N]daily average≤ 13322 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 average≤ 13.1 lb/dall year
Phosphorus, total [as P]daily maximumreport only (lb/d)all year
Enterococci: group D, MF trans, M-E, EIAdaily average≤ 33 #/100mLall 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.

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/DE0021491 · MCP: https://passage-data.com/mcp