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

Allendale Town of

Sewage treatment plant, major discharger, Allendale, South Carolina. NPDES permit SC0039918, in force until Oct 31, 2028. Last 12 months: over a limit 3 times (last May 2026), 1 of 14 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form 1 monthly (37 values), form 2 quarterly (4 values)
Renewal application due
May 4, 2028 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
5 values over a limit, 36 required values missing, 4 of 16 reports late

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

Period endingParameterReportedLimitOver by
December 2025E. coli, daily maximum579.4≤ 349 MPN/100mL66%
March 2026Solids, suspended percent removal, monthly average minimum35≥ 65 %86%
May 2026Oxygen, dissolved [DO], minimum1.89≥ 2 mg/L6%

Limits in force (43)

ParameterStatisticLimitMonths
Oxygen demand, ultimatemonthly average≤ 5004 lb/dJan, Feb, Nov, Dec
Oxygen demand, ultimatemonthly average≤ 3954 lb/dMar–Oct
Oxygen demand, ultimateweekly averagereport only (lb/d)Jan, Feb, Nov, Dec
Oxygen demand, ultimateweekly averagereport only (lb/d)Mar–Oct
Oxygen, dissolved [DO]minimum≥ 2 mg/Lall year
pHminimum≥ 6 SUall year
pHmaximum≤ 8.5 SUall year
Solids, total suspendedmonthly average≤ 90 mg/Lall year
Solids, total suspendedweekly average≤ 135 mg/Lall year
Solids, total suspendedmonthly average≤ 3002 lb/dall year
Solids, total suspendedweekly average≤ 4503 lb/dall year
Nitrogen, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, total [as N]weekly averagereport only (mg/L)all year
Nitrogen, total [as N]monthly averagereport only (lb/d)all year
Nitrogen, total [as N]weekly averagereport only (lb/d)all year
Nitrogen, ammonia total [as N]monthly average≤ 20 mg/Lall year
Nitrogen, ammonia total [as N]weekly average≤ 30 mg/Lall year
Nitrogen, ammonia total [as N]monthly average≤ 667 lb/dall year
Nitrogen, ammonia total [as N]weekly average≤ 1001 lb/dall year
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]weekly averagereport only (mg/L)all year
Phosphorus, total [as P]monthly averagereport only (lb/d)all year
Phosphorus, total [as P]weekly averagereport only (lb/d)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantweekly averagereport only (MGD)all year
Chlorine, total residualmonthly average≤ .5 mg/Lall year
Chlorine, total residualdaily maximum≤ 1 mg/Lall year
Chlorine, total residualmonthly average≤ 16.68 lb/dall year
Chlorine, total residualdaily maximum≤ 33.36 lb/dall year
E. coli30-day geometric mean≤ 126 MPN/100mLall year
E. colidaily maximum≤ 349 MPN/100mLall year
E. coli30-day geometric mean≤ 126 MPN/100mLall year
E. colidaily maximum≤ 800 MPN/100mLall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall year
BOD, carbonaceous [5 day, 20 C]weekly average≤ 40 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 834 lb/dall year
BOD, carbonaceous [5 day, 20 C]weekly average≤ 1251 lb/dall year
Solids, suspended percent removalmonthly average minimum≥ 65 %all year
Carbonaceous oxygen demand, % removalmonthly average minimum≥ 65 %all year
LC50 Static 48Hr Acute Ceriodaphnia dubiadaily minimumreport only (%)all year
%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly average≤ 25 %all year
%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiadaily maximum≤ 40 %all year
IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubiadaily minimumreport only (%)all year

Cited limits by parameter: South Carolina'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/SC0039918 · MCP: https://passage-data.com/mcp