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Washington County Board of Education

Sewage treatment plant, Leroy, Alabama. NPDES permit AL0042391, in force until May 31, 2028. Last 12 months: over a limit 43 times (last August 2026), 2 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form 1 monthly (43 values)
Renewal application due
Dec 3, 2027 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
31 values over a limit, 0 required values missing, 1 of 12 reports late

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

All 43 values over a limit
Period endingParameterReportedLimitOver by
October 2025BOD, carb-5 day, 20 deg C, percent removal, monthly average minimum83.63636≥ 85 %9%
October 2025E. coli, daily maximum2420≤ 298 #/100mL712%
October 2025E. coli, monthly average2420≤ 126 #/100mL1821%
October 2025Nitrogen, ammonia total [as N], monthly average17.6≤ 2.2 mg/L700%
October 2025Nitrogen, ammonia total [as N], monthly average2.74779648≤ .458 lb/d500%
October 2025Nitrogen, ammonia total [as N], weekly average17.6≤ 3.3 mg/L433%
October 2025Nitrogen, ammonia total [as N], weekly average2.74779648≤ .688 lb/d299%
November 2025E. coli, daily maximum3300≤ 2507 #/100mL32%
November 2025E. coli, monthly average1673.33≤ 548 #/100mL205%
November 2025Nitrogen, ammonia total [as N], monthly average2.95256016≤ .875 lb/d237%
November 2025Nitrogen, ammonia total [as N], monthly average22.35≤ 4.2 mg/L432%
November 2025Nitrogen, ammonia total [as N], weekly average4.47717888≤ 1.31 lb/d242%
November 2025Nitrogen, ammonia total [as N], weekly average46.6≤ 6.3 mg/L640%
December 2025BOD, carb-5 day, 20 deg C, percent removal, monthly average minimum47.2≥ 85 %252%
December 2025BOD, carbonaceous [5 day, 20 C], weekly average28.8≤ 22.5 mg/L28%
January 2026BOD, carb-5 day, 20 deg C, percent removal, monthly average minimum73.11828≥ 85 %79%
February 2026BOD, carb-5 day, 20 deg C, percent removal, monthly average minimum49.68153≥ 85 %235%
February 2026BOD, carbonaceous [5 day, 20 C], monthly average15.8≤ 15 mg/L5%
February 2026Nitrogen, ammonia total [as N], monthly average3.09367296≤ .875 lb/d254%
February 2026Nitrogen, ammonia total [as N], monthly average32.2≤ 4.2 mg/L667%
February 2026Nitrogen, ammonia total [as N], weekly average3.09367296≤ 1.31 lb/d136%
February 2026Nitrogen, ammonia total [as N], weekly average32.2≤ 6.3 mg/L411%
March 2026BOD, carb-5 day, 20 deg C, percent removal, monthly average minimum66.15894≥ 85 %126%
March 2026E. coli, monthly average613.18≤ 548 #/100mL12%
March 2026Nitrogen, ammonia total [as N], monthly average1.98689866≤ .875 lb/d127%
March 2026Nitrogen, ammonia total [as N], monthly average16.55≤ 4.2 mg/L294%
March 2026Nitrogen, ammonia total [as N], weekly average28.1≤ 6.3 mg/L346%
March 2026pH, daily minimum4.9≥ 6 SU—
April 2026E. coli, daily maximum86600≤ 2507 #/100mL3354%
April 2026E. coli, monthly average40070≤ 548 #/100mL7212%
April 2026Nitrogen, ammonia total [as N], monthly average20.555≤ 4.2 mg/L389%
April 2026Nitrogen, ammonia total [as N], monthly average3.27000245≤ .875 lb/d274%
April 2026Nitrogen, ammonia total [as N], weekly average31.2≤ 6.3 mg/L395%
April 2026Nitrogen, ammonia total [as N], weekly average5.6204928≤ 1.31 lb/d329%
April 2026Solids, total suspended, weekly average47≤ 45 mg/L4%
May 2026Nitrogen, ammonia total [as N], monthly average4.766667≤ 2.2 mg/L117%
May 2026Nitrogen, ammonia total [as N], weekly average6.1≤ 3.3 mg/L85%
August 2026BOD, carb-5 day, 20 deg C, percent removal, monthly average minimum74.04795≥ 85 %73%
August 2026BOD, carbonaceous [5 day, 20 C], weekly average18.4≤ 15 mg/L23%
August 2026Nitrogen, ammonia total [as N], monthly average1.10219772≤ .458 lb/d141%
August 2026Nitrogen, ammonia total [as N], monthly average8.45≤ 2.2 mg/L284%
August 2026Nitrogen, ammonia total [as N], weekly average16.9≤ 3.3 mg/L412%
August 2026Nitrogen, ammonia total [as N], weekly average2.4355469≤ .688 lb/d254%

Limits in force (53)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]daily minimum≥ 5 mg/Lall year
pHdaily minimum≥ 6 SUall year
pHdaily maximum≤ 8.5 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedweekly average≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 6.25 lb/dall year
Solids, total suspendedweekly average≤ 9.38 lb/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 (lb/d)all year
Solids, total suspendedweekly averagereport only (lb/d)all year
Nitrogen, ammonia total [as N]monthly average≤ 2.2 mg/LMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 4.2 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]weekly average≤ 3.3 mg/LMay–Oct
Nitrogen, ammonia total [as N]weekly average≤ 6.3 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ .458 lb/dMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ .875 lb/dJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]weekly average≤ .688 lb/dMay–Oct
Nitrogen, ammonia total [as N]weekly average≤ 1.31 lb/dJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)Apr–Oct
Nitrogen, Kjeldahl, total [as N]weekly averagereport only (mg/L)Apr–Oct
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (lb/d)Apr–Oct
Nitrogen, Kjeldahl, total [as N]weekly averagereport only (lb/d)Apr–Oct
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)Apr–Oct
Nitrite + Nitrate total [as N]weekly averagereport only (mg/L)Apr–Oct
Nitrite + Nitrate total [as N]monthly averagereport only (lb/d)Apr–Oct
Nitrite + Nitrate total [as N]weekly averagereport only (lb/d)Apr–Oct
Phosphorus, total [as P]monthly averagereport only (mg/L)Apr–Oct
Phosphorus, total [as P]weekly averagereport only (mg/L)Apr–Oct
Phosphorus, total [as P]monthly averagereport only (lb/d)Apr–Oct
Phosphorus, total [as P]weekly averagereport only (lb/d)Apr–Oct
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Chlorine, total residualmonthly average≤ .011 mg/Lall year
Chlorine, total residualdaily maximum≤ .019 mg/Lall year
E. colimonthly average≤ 126 #/100mLMay–Oct
E. colimonthly average≤ 548 #/100mLJan, Feb, Mar, Apr, Nov, Dec
E. colidaily maximum≤ 298 #/100mLMay–Oct
E. colidaily maximum≤ 2507 #/100mLJan, Feb, Mar, Apr, Nov, Dec
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/LMay–Oct
BOD, carbonaceous [5 day, 20 C]monthly average≤ 15 mg/LJan, Feb, Mar, Apr, Nov, Dec
BOD, carbonaceous [5 day, 20 C]weekly average≤ 15 mg/LMay–Oct
BOD, carbonaceous [5 day, 20 C]weekly average≤ 22.5 mg/LJan, Feb, Mar, Apr, Nov, Dec
BOD, carbonaceous [5 day, 20 C]monthly average≤ 2.08 lb/dMay–Oct
BOD, carbonaceous [5 day, 20 C]monthly average≤ 3.12 lb/dJan, Feb, Mar, Apr, Nov, Dec
BOD, carbonaceous [5 day, 20 C]weekly average≤ 3.12 lb/dMay–Oct
BOD, carbonaceous [5 day, 20 C]weekly average≤ 4.69 lb/dJan, Feb, Mar, Apr, Nov, Dec
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all year
BOD, carbonaceous [5 day, 20 C]weekly averagereport only (mg/L)all year
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (lb/d)all year
BOD, carbonaceous [5 day, 20 C]weekly averagereport only (lb/d)all year
BOD, carb-5 day, 20 deg C, percent removalmonthly average minimum≥ 85 %all year
Solids, suspended percent removalmonthly average minimum≥ 85 %all year

How strict are these limits?

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

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