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Swayzee WWTP, Town of

Sewage treatment plant, Swayzee, Indiana. NPDES permit IN0037001, in force until Mar 31, 2028. Last 12 months: over a limit 40 times (last August 2026), 1 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (23 values)
Renewal application due
Oct 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 40 values over a limit
Period endingParameterReportedLimitOver by
October 2025Chlorine, total residual, daily minimum.05 mg/L≥ .5 mg/L90%
October 2025Chlorine, total residual, daily maximum1.34 mg/L< .06 mg/L2133%
October 2025Chlorine, total residual, monthly average.105 mg/L< .06 mg/L75%
October 2025E. coli, colony forming units [CFU], daily maximum2420 CFU/100mL≤ 235 CFU/100mL930%
October 2025E. coli, colony forming units [CFU], monthly geometric mean220 CFU/100mL≤ 125 CFU/100mL76%
October 2025Nitrogen, ammonia total [as N], monthly average2.5 lb/d≤ 2.3 lb/d9%
October 2025Nitrogen, ammonia total [as N], monthly average3.4 mg/L≤ 1.5 mg/L127%
October 2025Nitrogen, ammonia total [as N], maximum weekly average13.8 mg/L≤ 2.2 mg/L527%
October 2025Nitrogen, ammonia total [as N], maximum weekly average9.6 lb/d≤ 3.3 lb/d191%
October 2025Oxygen, dissolved [DO], daily average minimum5.7 mg/L≥ 6 mg/L5%
November 2025Nitrogen, ammonia total [as N], monthly average2.39 lb/d≤ 2.3 lb/d4%
November 2025Nitrogen, ammonia total [as N], monthly average3.6 mg/L≤ 1.5 mg/L140%
November 2025Nitrogen, ammonia total [as N], maximum weekly average12.9 mg/L≤ 2.2 mg/L486%
November 2025Nitrogen, ammonia total [as N], maximum weekly average8.6 lb/d≤ 3.3 lb/d161%
February 2026Nitrogen, ammonia total [as N], monthly average3 mg/L≤ 2.1 mg/L43%
February 2026Nitrogen, ammonia total [as N], maximum weekly average10.2 mg/L≤ 3.2 mg/L219%
February 2026Nitrogen, ammonia total [as N], maximum weekly average9.5 lb/d≤ 4.8 lb/d98%
March 2026BOD, carbonaceous [5 day, 20 C], maximum weekly average64.9 lb/d≤ 60.1 lb/d8%
March 2026Solids, total suspended, maximum weekly average144.9 lb/d≤ 67.6 lb/d114%
April 2026Chlorine, total residual, daily minimum.47 mg/L≥ .5 mg/L6%
April 2026Chlorine, total residual, daily maximum.46 mg/L< .06 mg/L667%
April 2026Chlorine, total residual, monthly average.07 mg/L< .06 mg/L17%
April 2026E. coli, colony forming units [CFU], daily maximum2420 CFU/100mL≤ 235 CFU/100mL930%
May 2026Chlorine, total residual, daily minimum.45 mg/L≥ .5 mg/L10%
May 2026Chlorine, total residual, daily maximum.1 mg/L< .06 mg/L67%
June 2026Chlorine, total residual, daily minimum.45 mg/L≥ .5 mg/L10%
June 2026Chlorine, total residual, daily maximum.95 mg/L< .06 mg/L1483%
June 2026Chlorine, total residual, monthly average.18 mg/L< .06 mg/L200%
June 2026E. coli, colony forming units [CFU], daily maximum2419.6 CFU/100mL≤ 235 CFU/100mL930%
July 2026Chlorine, total residual, daily minimum.06 mg/L≥ .5 mg/L88%
July 2026Chlorine, total residual, daily maximum.72 mg/L< .06 mg/L1100%
July 2026Chlorine, total residual, monthly average.13 mg/L< .06 mg/L117%
July 2026E. coli, colony forming units [CFU], daily maximum235.9 CFU/100mL≤ 235 CFU/100mL0%
August 2026BOD, carbonaceous [5 day, 20 C], maximum weekly average67.08 lb/d≤ 45.1 lb/d49%
August 2026Chlorine, total residual, daily minimum.32 mg/L≥ .5 mg/L36%
August 2026Chlorine, total residual, daily maximum.11 mg/L< .06 mg/L83%
August 2026Chlorine, total residual, monthly average.069 mg/L< .06 mg/L15%
August 2026E. coli, colony forming units [CFU], daily maximum261.3 CFU/100mL≤ 235 CFU/100mL11%
August 2026Solids, total suspended, monthly average71.04 lb/d≤ 36.1 lb/d97%
August 2026Solids, total suspended, maximum weekly average252.1 lb/d≤ 54.1 lb/d366%

Limits in force (36)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]daily average minimum≥ 6 mg/LMay–Nov
Oxygen, dissolved [DO]daily average minimum≥ 5 mg/LJan, Feb, Mar, Apr, Dec
pHdaily minimum≥ 6 SUall year
pHdaily maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/LJan, Feb, Mar, Apr, Dec
Solids, total suspendedmonthly average≤ 24 mg/LMay–Nov
Solids, total suspendedmaximum weekly average≤ 45 mg/LJan, Feb, Mar, Apr, Dec
Solids, total suspendedmaximum weekly average≤ 36 mg/LMay–Nov
Solids, total suspendedmonthly average≤ 45.1 lb/dJan, Feb, Mar, Apr, Dec
Solids, total suspendedmonthly average≤ 36.1 lb/dMay–Nov
Solids, total suspendedmaximum weekly average≤ 67.6 lb/dJan, Feb, Mar, Apr, Dec
Solids, total suspendedmaximum weekly average≤ 54.1 lb/dMay–Nov
Nitrogen, ammonia total [as N]monthly average≤ 1.5 mg/LMay–Nov
Nitrogen, ammonia total [as N]monthly average≤ 2.1 mg/LJan, Feb, Mar, Apr, Dec
Nitrogen, ammonia total [as N]maximum weekly average≤ 2.2 mg/LMay–Nov
Nitrogen, ammonia total [as N]maximum weekly average≤ 3.2 mg/LJan, Feb, Mar, Apr, Dec
Nitrogen, ammonia total [as N]monthly average≤ 2.3 lb/dMay–Nov
Nitrogen, ammonia total [as N]monthly average≤ 3.2 lb/dJan, Feb, Mar, Apr, Dec
Nitrogen, ammonia total [as N]maximum weekly average≤ 3.3 lb/dMay–Nov
Nitrogen, ammonia total [as N]maximum weekly average≤ 4.8 lb/dJan, Feb, Mar, Apr, Dec
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Chlorine, total residualmonthly average< .06 mg/LApr–Oct
Chlorine, total residualdaily maximum< .06 mg/LApr–Oct
Chlorine, total residualdaily minimum≥ .5 mg/LApr–Oct
Chlorine, total residualdaily maximumreport only (mg/L)Apr–Oct
E. coli, colony forming units [CFU]monthly geometric mean≤ 125 CFU/100mLApr–Oct
E. coli, colony forming units [CFU]daily maximum≤ 235 CFU/100mLApr–Oct
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/LJan, Feb, Mar, Apr, Dec
BOD, carbonaceous [5 day, 20 C]monthly average≤ 20 mg/LMay–Nov
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 40 mg/LJan, Feb, Mar, Apr, Dec
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 30 mg/LMay–Nov
BOD, carbonaceous [5 day, 20 C]monthly average≤ 37.6 lb/dJan, Feb, Mar, Apr, Dec
BOD, carbonaceous [5 day, 20 C]monthly average≤ 30 lb/dMay–Nov
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 60.1 lb/dJan, Feb, Mar, Apr, Dec
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 45.1 lb/dMay–Nov
Flow, totalmonthly totalreport only (Mgal/mo)all year

How strict are these limits?

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

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