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Michigan Milk Producers Association

Creamery Butter, Ovid, Michigan. NPDES permit MI0043427, in force until Oct 1, 2028. Last 12 months: over a limit 19 times (last August 2026), 6 required values missing, 6 of 24 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 21 days after each period: outfall 001 form A monthly (10 values), outfall 002 form A monthly (32 values)
Renewal application due
Apr 4, 2028 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
5 values over a limit, 0 required values missing, 5 of 24 reports late

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

All 19 values over a limit
Period endingParameterReportedLimitOver by
October 2025Phosphorus, total [as P], monthly average.16≤ .15 mg/L7%
October 2025Phosphorus, total [as P], monthly average.83≤ .6 lb/d38%
April 2026Oxygen, dissolved [DO], daily minimum2≥ 3 mg/L33%
May 2026Nitrogen, ammonia total [as N], daily maximum33.43≤ 27 lb/d24%
May 2026Nitrogen, ammonia total [as N], daily maximum5.8≤ 4 mg/L45%
May 2026Oxygen, dissolved [DO], daily minimum2.7≥ 5 mg/L46%
June 2026Nitrogen, ammonia total [as N], daily maximum123.93≤ 27 lb/d359%
June 2026Nitrogen, ammonia total [as N], daily maximum19.1≤ 4 mg/L378%
June 2026Phosphorus, total [as P], monthly average.9≤ .6 lb/d50%
July 2026Nitrogen, ammonia total [as N], daily maximum54.83≤ 27 lb/d103%
July 2026Nitrogen, ammonia total [as N], daily maximum8.56≤ 4 mg/L114%
July 2026Oxygen, dissolved [DO], daily minimum3.2≥ 5 mg/L36%
July 2026Phosphorus, total [as P], monthly average.19≤ .15 mg/L27%
July 2026Phosphorus, total [as P], monthly average1.1≤ .6 lb/d83%
August 2026Oxygen, dissolved [DO], daily minimum2.8≥ 5 mg/L44%
August 2026Phosphorus, total [as P], monthly average.18≤ .15 mg/L20%
August 2026Phosphorus, total [as P], monthly average1.1≤ .6 lb/d83%
August 2026Solids, total suspended, daily maximum332.1≤ 300 lb/d11%
August 2026Solids, total suspended, daily maximum53.3≤ 45 mg/L18%

Limits in force (59)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year001
pHdaily minimum≥ 6.5 SUall year001
pHdaily maximum≤ 9 SUall year001
Chloride [as Cl]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 residualdaily maximum≤ 38 ug/Lall year001
Solids, total dissolvedmonthly average≤ 650 mg/Lall year001
Solids, total dissolveddaily maximumreport only (mg/L)all year001
Outfall observation,visual, y/n responsevaluereport only (N=0;Y=1)all year001
Oxygen, dissolved [DO]daily minimum≥ 5 mg/LMay–Sep002
Oxygen, dissolved [DO]daily minimum≥ 3 mg/LJan, Feb, Mar, Apr, Oct, Nov, Dec002
pHdaily minimum≥ 6.5 SUall year002
pHdaily maximum≤ 9 SUall year002
Solids, total suspendedmonthly average≤ 30 mg/Lall year002
Solids, total suspendeddaily maximum≤ 45 mg/Lall year002
Solids, total suspendedmonthly average≤ 180 lb/dall year002
Solids, total suspendeddaily maximum≤ 300 lb/dall year002
Nitrogen, ammonia total [as N]monthly average≤ 3.2 mg/LMay–Sep002
Nitrogen, ammonia total [as N]monthly average≤ 7.6 mg/LOct, Nov002
Nitrogen, ammonia total [as N]monthly average≤ 18 mg/LJan, Feb, Mar, Apr, Dec002
Nitrogen, ammonia total [as N]daily maximum≤ 4 mg/LMay–Sep002
Nitrogen, ammonia total [as N]daily maximum≤ 25 mg/LOct, Nov002
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)Jan, Feb, Mar, Apr, Dec002
Nitrogen, ammonia total [as N]monthly average≤ 21 lb/dMay–Sep002
Nitrogen, ammonia total [as N]monthly average≤ 51 lb/dOct, Nov002
Nitrogen, ammonia total [as N]monthly average≤ 120 lb/dJan, Feb, Mar, Apr, Dec002
Nitrogen, ammonia total [as N]daily maximum≤ 27 lb/dMay–Sep002
Nitrogen, ammonia total [as N]daily maximum≤ 170 lb/dOct, Nov002
Nitrogen, ammonia total [as N]daily maximumreport only (lb/d)Jan, Feb, Mar, Apr, Dec002
Phosphorus, total [as P]monthly average≤ .15 mg/LApr–Oct002
Phosphorus, total [as P]monthly average≤ 1 mg/LJan, Feb, Mar, Nov, Dec002
Phosphorus, total [as P]daily maximumreport only (mg/L)Apr–Oct002
Phosphorus, total [as P]daily maximumreport only (mg/L)Jan, Feb, Mar, Nov, Dec002
Phosphorus, total [as P]monthly average≤ .6 lb/dApr–Oct002
Phosphorus, total [as P]monthly average≤ 2.9 lb/dJan, Feb, Mar, Nov, Dec002
Phosphorus, total [as P]daily maximumreport only (lb/d)Apr–Oct002
Phosphorus, total [as P]daily maximumreport only (lb/d)Jan, Feb, Mar, Nov, Dec002
Chloride [as Cl]daily maximumreport only (mg/L)all year002
Sulfate, total [as SO4]daily maximumreport only (mg/L)all year002
Toxicity, choice of speciesmonthly maximum≤ 2.3 tox chronicall year002
Toxicity, choice of speciesvaluereport only (tox chronic)all year002
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002
Chlorine, total residualdaily maximum≤ 38 ug/Lall year002
Toxicity [acute], Ceriodaphnia dubiadaily maximum≤ 1 tox acuteall year002
Solids, total dissolveddaily maximumreport only (mg/L)all year002
BOD, carbonaceous [5 day, 20 C]monthly average≤ 12 mg/LMay–Sep002
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/LJan, Feb, Mar, Apr, Oct, Nov, Dec002
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 18 mg/LMay–Sep002
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 40 mg/LJan, Feb, Mar, Apr, Oct, Nov, Dec002
BOD, carbonaceous [5 day, 20 C]monthly average≤ 80 lb/dMay–Sep002
BOD, carbonaceous [5 day, 20 C]monthly average≤ 170 lb/dJan, Feb, Mar, Apr, Oct, Nov, Dec002
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 120 lb/dMay–Sep002
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 270 lb/dJan, Feb, Mar, Apr, Oct, Nov, Dec002
Outfall observation,visual, y/n responsevaluereport only (N=0;Y=1)all year002
TU Static 24 Hr Acute Pimephales promelasdaily maximumreport only (tox acute)all year002
Static 48 Hr Chronic Pimphales Promelasmonthly maximumreport only (tox chronic)all year002
Static 48 Hr Chronic Pimphales Promelasvaluereport only (tox chronic)all year002

How strict are these limits?

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

Same industry: the 26 Food and Kindred Products permits in Michigan.

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