Passage Data · Check a report · Use it from your AI

City of Cairo

Sewage treatment plant, major discharger, Cairo, Georgia. NPDES permit GA0025771 expired Oct 31, 2026. Last 12 months: over a limit 7 times (last June 2026), 2 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form B monthly (41 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
7 values over a limit, 0 required values missing, 3 of 12 reports late

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

Period endingParameterReportedLimitOver by
October 2025Phosphorus, total [as P], monthly average1.1 mg/L≤ 1 mg/L10%
March 2026Nitrogen, ammonia total [as N], monthly average1.1 mg/L≤ 1 mg/L10%
March 2026Nitrogen, ammonia total [as N], weekly average2.1 mg/L≤ 1.5 mg/L40%
March 2026Phosphorus, total [as P], weekly average1.7 mg/L≤ 1.5 mg/L13%
April 2026Nitrogen, ammonia total [as N], monthly average2 mg/L≤ 1 mg/L100%
April 2026Nitrogen, ammonia total [as N], weekly average2.3 mg/L≤ 1.5 mg/L53%
June 2026Phosphorus, total [as P], weekly average14.8 kg/d≤ 14.2 kg/d4%

Limits in force (51)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]daily minimum≥ 6 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 10 mg/LMay–Oct
BOD, 5-day, 20 deg. Cmonthly average≤ 13 mg/LJan, Feb, Mar, Apr, Nov, Dec
BOD, 5-day, 20 deg. Cweekly average≤ 15 mg/LMay–Oct
BOD, 5-day, 20 deg. Cweekly average≤ 20 mg/LJan, Feb, Mar, Apr, Nov, Dec
BOD, 5-day, 20 deg. Cweekly average≤ 114 kg/dMay–Oct
BOD, 5-day, 20 deg. Cmonthly average≤ 148 kg/dJan, Feb, Mar, Apr, Nov, Dec
BOD, 5-day, 20 deg. Cmonthly average≤ 142 kg/dMay–Oct
BOD, 5-day, 20 deg. Cweekly average≤ 185 kg/dJan, Feb, Mar, Apr, Nov, Dec
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cweekly averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cmonthly averagereport only (kg/d)all year
BOD, 5-day, 20 deg. Cweekly averagereport only (kg/d)all year
pHdaily minimum≥ 6 SUJan, Feb, Mar, Apr, Nov, Dec
pHdaily minimum≥ 6 SUMay–Oct
pHdaily maximum≤ 8.5 SUJan, Feb, Mar, Apr, Nov, Dec
pHdaily maximum≤ 7.9 SUMay–Oct
Solids, total suspendedmonthly average≤ 20 mg/Lall year
Solids, total suspendedweekly average≤ 30 mg/Lall year
Solids, total suspendedmonthly average≤ 227 kg/dall year
Solids, total suspendedweekly average≤ 284 kg/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendedweekly averagereport only (mg/L)all year
Solids, total suspendedmonthly averagereport only (kg/d)all year
Solids, total suspendedweekly averagereport only (kg/d)all year
Nitrogen, organic total [as N]monthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly average≤ .7 mg/LMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 1 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]weekly average≤ 1.1 mg/LMay–Oct
Nitrogen, ammonia total [as N]weekly average≤ 1.5 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 8 kg/dMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 11.4 kg/dJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]weekly average≤ 10 kg/dMay–Oct
Nitrogen, ammonia total [as N]weekly average≤ 14.2 kg/dJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, nitrate total [as N]monthly averagereport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]monthly average≤ 1 mg/Lall year
Phosphorus, total [as P]weekly average≤ 1.5 mg/Lall year
Phosphorus, total [as P]monthly average≤ 11.4 kg/dall year
Phosphorus, total [as P]weekly average≤ 14.2 kg/dall year
Phosphate, ortho [as P]monthly averagereport only (mg/L)all year
Chloridemonthly averagereport only (mg/L)all year
Flow, in conduit or thru treatment plantmonthly average≤ 3 MGDall year
Flow, in conduit or thru treatment plantweekly average≤ 3.75 MGDall year
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year
Coliform, fecal generalweekly geometric mean≤ 400 #/100mLall year
Solids, sludge, total, dry weightmonthly totalreport only (dry ton)all year
BOD, 5-day, percent removalminimum≥ 85 %all year
Solids, suspended percent removalminimum≥ 85 %all year
NOEL Static Renewal 7Day Chronic Ceriodaphnia dubiaminimumreport only (%)all year
Noel Statre 7Day Chronic Pimephalesminimumreport only (%)all year

How strict are these limits?

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

Check this month's numbers Email me before each report is due

· Save this facility as a site · Superfund sites nearby · Your permits on one board

On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/GA0025771 · MCP: https://passage-data.com/mcp