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Galva, City of

Sewage treatment plant, Galva, Illinois. NPDES permit IL0023647, in force until Jan 31, 2030. Last 12 months: over a limit 18 times (last August 2026), 24 of 44 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: outfall 001 form 0 monthly (11 values), outfall A01 form 0 monthly (7 values), outfall B01 form 0 monthly (26 values), outfall INF form L monthly (4 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
33 values over a limit, 0 required values missing, 4 of 48 reports late

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

All 18 values over a limit
Period endingOutfallParameterReportedLimitOver by
October 2025B01Nickel, total [as Ni], monthly average.045 mg/L≤ .0133 mg/L238%
November 2025B01Nickel, total [as Ni], monthly average.091 mg/L≤ .0133 mg/L584%
December 2025B01Nickel, total [as Ni], monthly average.12 mg/L≤ .0133 mg/L802%
December 2025B01Nickel, total [as Ni], monthly average.14 lb/d≤ .11 lb/d27%
January 2026B01Nickel, total [as Ni], monthly average.087 mg/L≤ .0133 mg/L554%
January 2026B01Nickel, total [as Ni], monthly average.13 lb/d≤ .11 lb/d18%
February 2026B01Nickel, total [as Ni], monthly average.084 mg/L≤ .0133 mg/L532%
March 2026B01Nickel, total [as Ni], monthly average.057 mg/L≤ .0133 mg/L329%
March 2026B01Nickel, total [as Ni], monthly average.13 lb/d≤ .11 lb/d18%
April 2026B01Nickel, total [as Ni], monthly average.033 mg/L≤ .0133 mg/L148%
April 2026B01Nickel, total [as Ni], monthly average.19 lb/d≤ .11 lb/d73%
May 2026B01Nickel, total [as Ni], monthly average.035 mg/L≤ .0133 mg/L163%
June 2026A01Coliform, fecal general, daily maximum> 9999 #/100mL≤ 400 #/100mL—
June 2026B01Nickel, total [as Ni], monthly average.03 mg/L≤ .0133 mg/L126%
June 2026B01Nickel, total [as Ni], monthly average.13 lb/d≤ .11 lb/d18%
July 2026A01Coliform, fecal general, daily maximum9999 #/100mL≤ 400 #/100mL2400%
July 2026B01Nickel, total [as Ni], monthly average.022 mg/L≤ .0133 mg/L65%
August 2026B01Nickel, total [as Ni], monthly average.019 mg/L≤ .0133 mg/L43%

Limits in force (50)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]daily minimumreport only (mg/L)all year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendedweekly average≤ 45 mg/Lall year001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Chlorine, total residualmonthly average≤ .75 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 30 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 45 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all yearA01
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all yearA01
Solids, total suspendedmonthly averagereport only (mg/L)all yearA01
Solids, total suspendeddaily maximumreport only (mg/L)all yearA01
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all yearA01
Coliform, fecal generaldaily maximum≤ 400 #/100mLall yearA01
Flow, totalmonthly totalreport only (Mgal/mo)all yearA01
Oxygen, dissolved [DO]monthly average minimum≥ 5.5 mg/LJan, Feb, Aug, Sep, Oct, Nov, DecB01
Oxygen, dissolved [DO]minimum weekly average≥ 4 mg/LJan, Feb, Aug, Sep, Oct, Nov, DecB01
Oxygen, dissolved [DO]minimum weekly average≥ 6 mg/LMar–JulB01
Oxygen, dissolved [DO]daily minimum≥ 3.5 mg/LJan, Feb, Aug, Sep, Oct, Nov, DecB01
Oxygen, dissolved [DO]daily minimum≥ 5 mg/LMar–JulB01
pHminimum≥ 6 SUall yearB01
pHmaximum≤ 9 SUall yearB01
Solids, total suspendedmonthly average≤ 37 mg/Lall yearB01
Solids, total suspendedweekly average≤ 45 mg/Lall yearB01
Solids, total suspendedmonthly average≤ 309 lb/dall yearB01
Solids, total suspendedweekly average≤ 375 lb/dall yearB01
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all yearB01
Copper, total [as Cu]monthly average≤ .0318 mg/Lall yearB01
Copper, total [as Cu]daily maximum≤ .0527 mg/Lall yearB01
Copper, total [as Cu]monthly average≤ .27 lb/dall yearB01
Copper, total [as Cu]daily maximum≤ .44 lb/dall yearB01
Nickel, total [as Ni]monthly average≤ .0133 mg/Lall yearB01
Nickel, total [as Ni]daily maximum≤ .2196 mg/Lall yearB01
Nickel, total [as Ni]monthly average≤ .11 lb/dall yearB01
Nickel, total [as Ni]daily maximum≤ 1.8 lb/dall yearB01
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearB01
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearB01
Chlorine, total residualdaily maximum≤ .05 mg/Lall yearB01
Coliform, fecal generaldaily maximumreport only (#/100mL)May–OctB01
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall yearB01
BOD, carbonaceous [5 day, 20 C]weekly average≤ 40 mg/Lall yearB01
BOD, carbonaceous [5 day, 20 C]monthly average≤ 209 lb/dall yearB01
BOD, carbonaceous [5 day, 20 C]weekly average≤ 334 lb/dall yearB01
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all yearINF
Solids, total suspendedmonthly averagereport only (mg/L)all yearINF
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearINF
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearINF

How strict are these limits?

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

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