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City of Richmond Hill

Sewage treatment plant, major discharger, Richmond Hill, Georgia. NPDES permit GA0037648, in force until Jan 31, 2027. Last 12 months: no values over a limit, 7 of 24 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form B1 monthly (38 values), outfall 002 form 1 monthly (11 values)
Renewal application due
Aug 4, 2026 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
4 values over a limit, 0 required values missing, 0 of 24 reports late

Limits in force (55)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]minimum≥ 5 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 5 mg/Lall year001
BOD, 5-day, 20 deg. Cweekly average≤ 7.5 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 125.1 lb/dall year001
BOD, 5-day, 20 deg. Cweekly average≤ 156.4 lb/dall year001
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year001
BOD, 5-day, 20 deg. Cweekly averagereport only (mg/L)all year001
BOD, 5-day, 20 deg. Cmonthly averagereport only (lb/d)all year001
BOD, 5-day, 20 deg. Cweekly averagereport only (lb/d)all year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 8 SUall year001
Solids, total suspendedmonthly average≤ 10 mg/Lall year001
Solids, total suspendedweekly average≤ 15 mg/Lall year001
Solids, total suspendedmonthly average≤ 250.2 lb/dall year001
Solids, total suspendedweekly average≤ 312.8 lb/dall year001
Solids, total suspendedmonthly averagereport only (mg/L)all year001
Solids, total suspendedweekly averagereport only (mg/L)all year001
Solids, total suspendedmonthly averagereport only (lb/d)all year001
Solids, total suspendedweekly averagereport only (lb/d)all year001
Nitrogen, organic total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, ammonia total [as N]monthly average≤ 1.1 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 1 mg/LMay–Oct001
Nitrogen, ammonia total [as N]weekly average≤ 1.7 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]weekly average≤ 1.5 mg/LMay–Oct001
Nitrogen, ammonia total [as N]monthly average≤ 27.5 lb/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 25 lb/dMay–Oct001
Nitrogen, ammonia total [as N]weekly average≤ 34.4 lb/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]weekly average≤ 31.3 lb/dMay–Oct001
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year001
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]monthly averagereport only (mg/L)all year001
Phosphate, ortho [as P]monthly averagereport only (mg/L)all year001
Flow, in conduit or thru treatment plantmonthly average≤ 3 MGDall year001
Flow, in conduit or thru treatment plantweekly average≤ 3.75 MGDall year001
Chlorine, total residualdaily maximum≤ .02 mg/Lall year001
Enterococcimonthly geometric mean≤ 35 #/100mLall year001
Enterococciweekly geometric mean≤ 130 #/100mLall year001
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year001
Coliform, fecal generalweekly geometric mean≤ 400 #/100mLall year001
Solids, sludge, total, dry weightmonthly totalreport only (dry ton)all year001
BOD, 5-day, percent removalminimum≥ 85 %all year001
Solids, suspended percent removalminimum≥ 85 %all year001
NOEL Static Renewal 7Day Chronic Americamysis bahia (formerly Mysidopsis bahia)minimumreport only (%)Jun001
Noel Statre 7Day Chronic Menidiaminimumreport only (%)Jun001
Turbiditymaximum≤ 3 NTUall year002
BOD, 5-day, 20 deg. Cmonthly average≤ 5 mg/Lall year002
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year002
pHminimum≥ 6 SUall year002
pHmaximum≤ 9 SUall year002
Solids, total suspendedmonthly average≤ 5 mg/Lall year002
Solids, total suspendedmonthly averagereport only (mg/L)all year002
Flow, in conduit or thru treatment plantmonthly average≤ 1 MGDall year002
Flow, in conduit or thru treatment plantweekly average≤ 1.25 MGDall year002
Coliform, fecal generalmonthly geometric mean≤ 23 #/100mLall year002
Coliform, fecal generaldaily maximum≤ 100 #/100mLall year002

How strict are these limits?

Cited limits by parameter: Georgia'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/GA0037648 · MCP: https://passage-data.com/mcp