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ST. Joe - Spencerville RSD

Sewage treatment plant, St. Joe, Indiana. NPDES permit IN0058441, in force until May 31, 2027. Last 12 months: over a limit 53 times (last August 2026), 1 of 18 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (24 values), form AQ quarterly
Renewal application due
Dec 2, 2026 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
30 values over a limit, 0 required values missing, 0 of 20 reports late

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

All 53 values over a limit
Period endingParameterReportedLimitOver by
October 2025E. coli, colony forming units [CFU], daily maximum12033 CFU/100mL≤ 235 CFU/100mL5020%
October 2025E. coli, colony forming units [CFU], monthly geometric mean237 CFU/100mL≤ 125 CFU/100mL90%
October 2025Solids, total suspended, monthly average192 mg/L≤ 30 mg/L540%
October 2025Solids, total suspended, monthly average74 lb/d≤ 43 lb/d72%
October 2025Solids, total suspended, maximum weekly average107 lb/d≤ 64 lb/d67%
October 2025Solids, total suspended, maximum weekly average255 mg/L≤ 45 mg/L467%
October 2025Zinc, total recoverable, daily maximum1.6 mg/L≤ .54 mg/L196%
October 2025Zinc, total recoverable, monthly average.65 mg/L≤ .27 mg/L141%
November 2025Solids, total suspended, monthly average67.4 mg/L≤ 30 mg/L125%
November 2025Solids, total suspended, maximum weekly average192 mg/L≤ 45 mg/L327%
November 2025Solids, total suspended, maximum weekly average71.9 lb/d≤ 64 lb/d12%
November 2025Zinc, total recoverable, daily maximum.6 mg/L≤ .54 mg/L11%
December 2025Solids, total suspended, monthly average136.2 mg/L≤ 30 mg/L354%
December 2025Solids, total suspended, monthly average53.4 lb/d≤ 43 lb/d24%
December 2025Solids, total suspended, maximum weekly average215.8 lb/d≤ 64 lb/d237%
December 2025Solids, total suspended, maximum weekly average616 mg/L≤ 45 mg/L1269%
December 2025Zinc, total recoverable, daily maximum.94 mg/L≤ .54 mg/L74%
December 2025Zinc, total recoverable, monthly average.36 mg/L≤ .27 mg/L33%
January 2026Nitrogen, ammonia total [as N], daily maximum26.3 mg/L≤ 16.4 mg/L60%
January 2026Solids, total suspended, monthly average51.1 mg/L≤ 30 mg/L70%
January 2026Solids, total suspended, maximum weekly average83.5 mg/L≤ 45 mg/L86%
February 2026Nitrogen, ammonia total [as N], daily maximum26 mg/L≤ 16.4 mg/L59%
February 2026Nitrogen, ammonia total [as N], monthly average19.3 mg/L≤ 7 mg/L176%
February 2026Solids, total suspended, monthly average221.1 mg/L≤ 30 mg/L637%
February 2026Solids, total suspended, monthly average95.9 lb/d≤ 43 lb/d123%
February 2026Solids, total suspended, maximum weekly average219.7 lb/d≤ 64 lb/d243%
February 2026Solids, total suspended, maximum weekly average519.5 mg/L≤ 45 mg/L1054%
February 2026Zinc, total recoverable, daily maximum.8 mg/L≤ .54 mg/L48%
March 2026Nitrogen, ammonia total [as N], daily maximum19.4 mg/L≤ 16.4 mg/L18%
March 2026Nitrogen, ammonia total [as N], monthly average13.9 mg/L≤ 7 mg/L99%
March 2026Solids, total suspended, monthly average174.6 mg/L≤ 30 mg/L482%
March 2026Solids, total suspended, monthly average86.6 lb/d≤ 43 lb/d101%
March 2026Solids, total suspended, maximum weekly average168.5 lb/d≤ 64 lb/d163%
March 2026Solids, total suspended, maximum weekly average384.5 mg/L≤ 45 mg/L754%
March 2026Zinc, total recoverable, daily maximum.57 mg/L≤ .54 mg/L6%
March 2026Zinc, total recoverable, monthly average.28 mg/L≤ .27 mg/L4%
April 2026E. coli, colony forming units [CFU], daily maximum961 CFU/100mL≤ 235 CFU/100mL309%
April 2026Nitrogen, ammonia total [as N], daily maximum19 mg/L≤ 16.4 mg/L16%
April 2026Nitrogen, ammonia total [as N], monthly average8.6 mg/L≤ 7 mg/L23%
April 2026Solids, total suspended, monthly average50 lb/d≤ 43 lb/d16%
April 2026Solids, total suspended, monthly average76.5 mg/L≤ 30 mg/L155%
April 2026Solids, total suspended, maximum weekly average139.5 lb/d≤ 64 lb/d118%
April 2026Solids, total suspended, maximum weekly average144.1 mg/L≤ 45 mg/L220%
May 2026E. coli, colony forming units [CFU], daily maximum2420 CFU/100mL≤ 235 CFU/100mL930%
June 2026Solids, total suspended, maximum weekly average53.3 mg/L≤ 45 mg/L18%
July 2026E. coli, colony forming units [CFU], daily maximum1046 CFU/100mL≤ 235 CFU/100mL345%
July 2026Solids, total suspended, monthly average40.8 mg/L≤ 30 mg/L36%
July 2026Solids, total suspended, maximum weekly average71.3 mg/L≤ 45 mg/L58%
August 2026E. coli, colony forming units [CFU], daily maximum2420 CFU/100mL≤ 235 CFU/100mL930%
August 2026Solids, total suspended, monthly average61.1 mg/L≤ 30 mg/L104%
August 2026Solids, total suspended, maximum weekly average157.2 mg/L≤ 45 mg/L249%
August 2026Solids, total suspended, maximum weekly average93.5 lb/d≤ 64 lb/d46%
August 2026Zinc, total recoverable, daily maximum.7 mg/L≤ .54 mg/L30%

Limits in force (66)

ParameterStatisticLimitMonthsOutfall
pHdaily minimum≥ 6 SUall year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendedmaximum weekly average≤ 45 mg/Lall year001
Solids, total suspendedmonthly average≤ 43 lb/dall year001
Solids, total suspendedmaximum weekly average≤ 64 lb/dall year001
Nitrogen, ammonia total [as N]monthly average≤ 6.7 mg/LMay–Nov001
Nitrogen, ammonia total [as N]monthly average≤ 7 mg/LJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 15.5 mg/LMay–Nov001
Nitrogen, ammonia total [as N]daily maximum≤ 16.4 mg/LJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 9.5 lb/dMay–Nov001
Nitrogen, ammonia total [as N]monthly average≤ 9.9 lb/dJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 22 lb/dMay–Nov001
Nitrogen, ammonia total [as N]daily maximum≤ 23.3 lb/dJan, Feb, Mar, Apr, Dec001
Nickel, total recoverabledaily maximumreport only (mg/L)Mar, Jun, Sep, Dec001
Nickel, total recoverabledaily maximumreport only (mg/L)Mar, Jun, Sep, Dec001
Nickel, total recoverabledaily maximumreport only (lb/d)Mar, Jun, Sep, Dec001
Nickel, total recoverabledaily maximumreport only (lb/d)Mar, Jun, Sep, Dec001
Nickel, total recoverabledaily maximumreport only (mg/L)Mar, Jun, Sep, Dec001
Nickel, total recoverabledaily maximumreport only (mg/L)Mar, Jun, Sep, Dec001
Zinc, total recoverablemonthly average≤ .27 mg/Lall year001
Zinc, total recoverabledaily maximum≤ .54 mg/Lall year001
Zinc, total recoverablemonthly average≤ .38 lb/dall year001
Zinc, total recoverabledaily maximum≤ .77 lb/dall year001
Zinc, total recoverablemonthly averagereport only (mg/L)all year001
Zinc, total recoverabledaily maximumreport only (mg/L)all year001
Copper, total recoverabledaily maximumreport only (mg/L)Mar, Jun, Sep, Dec001
Copper, total recoverabledaily maximumreport only (mg/L)Mar, Jun, Sep, Dec001
Copper, total recoverabledaily maximumreport only (lb/d)Mar, Jun, Sep, Dec001
Copper, total recoverabledaily maximumreport only (lb/d)Mar, Jun, Sep, Dec001
Copper, total recoverabledaily maximumreport only (mg/L)Mar, Jun, Sep, Dec001
Copper, total recoverabledaily maximumreport only (mg/L)Mar, Jun, Sep, Dec001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
E. coli, colony forming units [CFU]monthly geometric mean≤ 125 CFU/100mLApr–Oct001
E. coli, colony forming units [CFU]daily maximum≤ 235 CFU/100mLApr–Oct001
Toxicity [acute], Ceriodaphnia dubiamaximum≤ 1 toxicMay001
Toxicity [acute], Ceriodaphnia dubiamaximum≤ 1 toxicJun001
Toxicity [acute], Ceriodaphnia dubiamaximum≤ 1 toxicJun001
Toxicity [chronic], Ceriodaphnia dubiamaximum≤ 26 toxicMay001
Toxicity [chronic], Ceriodaphnia dubiamaximum≤ 26 toxicJun001
Toxicity [chronic], Ceriodaphnia dubiamaximum≤ 26 toxicJun001
Toxicity [acute], Pimephales promelas [Fathead Minnow]maximum≤ 1 toxicMay001
Toxicity [acute], Pimephales promelas [Fathead Minnow]maximum≤ 1 toxicJun001
Toxicity [acute], Pimephales promelas [Fathead Minnow]maximum≤ 1 toxicJun001
Toxicity [chronic], Pimephales promelas [Fathead Minnow]maximum≤ 26 toxicMay001
Toxicity [chronic], Pimephales promelas [Fathead Minnow]maximum≤ 26 toxicJun001
Toxicity [chronic], Pimephales promelas [Fathead Minnow]maximum≤ 26 toxicJun001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 40 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 36 lb/dall year001
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 57 lb/dall year001
Flow, totalmonthly totalreport only (Mgal/mo)all year001
Copper, dry weightvaluereport only (mg/kg)Jun, DecPRT
Copper, dry weightvaluereport only (mg/kg)Jun, DecPRT
Cadmium, dry weightvaluereport only (mg/kg)Jun, DecPRT
Cadmium, dry weightvaluereport only (mg/kg)Jun, DecPRT
Molybdenum, sludge, total, dry weight [as Mo]valuereport only (mg/kg)Jun, DecPRT
Molybdenum, sludge, total, dry weight [as Mo]valuereport only (mg/kg)Jun, DecPRT
Zinc, sludge, total, dry weight [as Zn]valuereport only (mg/kg)Jun, DecPRT
Zinc, sludge, total, dry weight [as Zn]valuereport only (mg/kg)Jun, DecPRT
Lead, sludge, total, dry weight [as Pb]valuereport only (mg/kg)Jun, DecPRT
Lead, sludge, total, dry weight [as Pb]valuereport only (mg/kg)Jun, DecPRT
Nickel, sludge, total, dry weight [as Ni]valuereport only (mg/kg)Jun, DecPRT
Nickel, sludge, total, dry weight [as Ni]valuereport only (mg/kg)Jun, DecPRT
Mercury, sludge, total, dry weight [as Hg]valuereport only (mg/kg)Jun, DecPRT
Mercury, sludge, total, dry weight [as Hg]valuereport only (mg/kg)Jun, DecPRT

How strict are these limits?

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

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Your permit document is the final word. As JSON: /api/v1/permits/IN0058441 · MCP: https://passage-data.com/mcp