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Preston Protein Products

Dry, Condensed, Evaporated Products, Preston, Minnesota. NPDES permit MN0001333, in force until Dec 31, 2030. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 47 days after each period: outfall D005 form A1 monthly (12 values), outfall D008 form A1 yearly, outfall D009 form A1 yearly, outfall D010 form A1 yearly, outfall D011 form A1 yearly
Last report on file
August 2026

Limits in force (36)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitdaily maximum≤ 86 deg Fall yearD005
Specific conductancedaily maximumreport only (umho/cm)Mar, Jun, Sep, DecD005
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all yearD005
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all yearD005
pHinstantaneous minimum≥ 6 SUall yearD005
pHinstantaneous maximum≤ 9 SUall yearD005
Solids, total suspendeddaily maximumreport only (mg/L)all yearD005
Nitrogen, total [as N]monthly averagereport only (mg/L)DecD005
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)DecD005
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)DecD005
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)DecD005
Chloride [as Cl]quarterly maximumreport only (mg/L)Mar, Jun, Sep, DecD005
Sulfate, total [as SO4]daily maximumreport only (mg/L)Mar, Jun, Sep, DecD005
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearD005
Flow, in conduit or thru treatment plantmonthly maximumreport only (MGD)all yearD005
Flow, in conduit or thru treatment plantmonthly totalreport only (Mgal/mo)all yearD005
Solids, total suspendedannual averagereport only (mg/L)all yearD008
Nitrogen, ammonia total [as N]annual averagereport only (mg/L)all yearD008
Phosphorus, total [as P]annual averagereport only (mg/L)all yearD008
BOD, carbonaceous [5 day, 20 C]annual averagereport only (mg/L)all yearD008
Chemical Oxygen Demand [COD]annual averagereport only (mg/L)all yearD008
Solids, total suspendedannual averagereport only (mg/L)all yearD009
Nitrogen, ammonia total [as N]annual averagereport only (mg/L)all yearD009
Phosphorus, total [as P]annual averagereport only (mg/L)all yearD009
BOD, carbonaceous [5 day, 20 C]annual averagereport only (mg/L)all yearD009
Chemical Oxygen Demand [COD]annual averagereport only (mg/L)all yearD009
Solids, total suspendedannual averagereport only (mg/L)all yearD010
Nitrogen, ammonia total [as N]annual averagereport only (mg/L)all yearD010
Phosphorus, total [as P]annual averagereport only (mg/L)all yearD010
BOD, carbonaceous [5 day, 20 C]annual averagereport only (mg/L)all yearD010
Chemical Oxygen Demand [COD]annual averagereport only (mg/L)all yearD010
Solids, total suspendedannual averagereport only (mg/L)all yearD011
Nitrogen, ammonia total [as N]annual averagereport only (mg/L)all yearD011
Phosphorus, total [as P]annual averagereport only (mg/L)all yearD011
BOD, carbonaceous [5 day, 20 C]annual averagereport only (mg/L)all yearD011
Chemical Oxygen Demand [COD]annual averagereport only (mg/L)all yearD011

How strict are these limits?

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

Same industry: the 28 Food and Kindred Products permits in Minnesota.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/MN0001333 · MCP: https://passage-data.com/mcp