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Caston Educational Center WWTP

Elementary And Secondary Schools, Fulton, Indiana. NPDES permit IN0031798, in force until May 31, 2030. Last 12 months: over a limit 23 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (23 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
8 values over a limit, 1 required value missing, 1 of 12 reports late

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

All 23 values over a limit
Period endingParameterReportedLimitOver by
November 2025Solids, total suspended, maximum weekly average28.8 mg/L≤ 27 mg/L7%
April 2026BOD, carbonaceous [5 day, 20 C], maximum weekly average11.7 lb/d≤ 8.3 lb/d41%
April 2026Chlorine, total residual, daily maximum.13 mg/L< .06 mg/L117%
April 2026Chlorine, total residual, monthly average.06 mg/L< .06 mg/L0%
April 2026Oxygen, dissolved [DO], daily average minimum4 mg/L≥ 5 mg/L20%
April 2026Solids, total suspended, monthly average10.84 lb/d≤ 6.3 lb/d72%
April 2026Solids, total suspended, monthly average43.04 mg/L≤ 30 mg/L43%
April 2026Solids, total suspended, maximum weekly average45.63 lb/d≤ 9.4 lb/d385%
April 2026Solids, total suspended, maximum weekly average57.2 mg/L≤ 45 mg/L27%
May 2026Chlorine, total residual, daily maximum.1 mg/L< .06 mg/L67%
May 2026Solids, total suspended, monthly average68.7 mg/L≤ 18 mg/L282%
May 2026Solids, total suspended, maximum weekly average79.6 mg/L≤ 27 mg/L195%
June 2026BOD, carbonaceous [5 day, 20 C], monthly average15.2 mg/L≤ 15 mg/L1%
June 2026BOD, carbonaceous [5 day, 20 C], maximum weekly average27.1 mg/L≤ 23 mg/L18%
June 2026Solids, total suspended, monthly average78.24 mg/L≤ 18 mg/L335%
June 2026Solids, total suspended, maximum weekly average112 mg/L≤ 27 mg/L315%
July 2026BOD, carbonaceous [5 day, 20 C], monthly average16.33 mg/L≤ 15 mg/L9%
July 2026Solids, total suspended, monthly average100.6 mg/L≤ 18 mg/L459%
July 2026Solids, total suspended, maximum weekly average144 mg/L≤ 27 mg/L433%
August 2026BOD, carbonaceous [5 day, 20 C], maximum weekly average25 mg/L≤ 23 mg/L9%
August 2026Solids, total suspended, monthly average44.7 mg/L≤ 18 mg/L148%
August 2026Solids, total suspended, maximum weekly average142 mg/L≤ 27 mg/L426%
August 2026pH, daily maximum9.3 SU≤ 9 SU—

Limits in force (36)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]daily average minimum≥ 5 mg/LJan, Feb, Mar, Apr, Dec
Oxygen, dissolved [DO]daily average minimum≥ 6 mg/LMay–Nov
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≤ 18 mg/LMay–Nov
Solids, total suspendedmaximum weekly average≤ 45 mg/LJan, Feb, Mar, Apr, Dec
Solids, total suspendedmaximum weekly average≤ 27 mg/LMay–Nov
Solids, total suspendedmonthly average≤ 6.3 lb/dJan, Feb, Mar, Apr, Dec
Solids, total suspendedmonthly average≤ 3.8 lb/dMay–Nov
Solids, total suspendedmaximum weekly average≤ 9.4 lb/dJan, Feb, Mar, Apr, Dec
Solids, total suspendedmaximum weekly average≤ 5.6 lb/dMay–Nov
Nitrogen, ammonia total [as N]monthly average≤ 1.1 mg/LMay–Nov
Nitrogen, ammonia total [as N]monthly average≤ 1.6 mg/LJan, Feb, Mar, Apr, Dec
Nitrogen, ammonia total [as N]maximum weekly average≤ 1.6 mg/LMay–Nov
Nitrogen, ammonia total [as N]maximum weekly average≤ 2.4 mg/LJan, Feb, Mar, Apr, Dec
Nitrogen, ammonia total [as N]monthly average≤ .2 lb/dMay–Nov
Nitrogen, ammonia total [as N]monthly average≤ .3 lb/dJan, Feb, Mar, Apr, Dec
Nitrogen, ammonia total [as N]maximum weekly average≤ .3 lb/dMay–Nov
Nitrogen, ammonia total [as N]maximum weekly average≤ .5 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≤ 15 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≤ 23 mg/LMay–Nov
BOD, carbonaceous [5 day, 20 C]monthly average≤ 5.2 lb/dJan, Feb, Mar, Apr, Dec
BOD, carbonaceous [5 day, 20 C]monthly average≤ 3.1 lb/dMay–Nov
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 8.3 lb/dJan, Feb, Mar, Apr, Dec
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 4.8 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.

Same industry: the 69 Educational Services permits in Indiana.

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Your permit document is the final word. As JSON: /api/v1/permits/IN0031798 · MCP: https://passage-data.com/mcp