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UOP LLC - Mobile Plant

Industrial Inorganic Chemicals, major discharger, Chickasaw, Alabama. NPDES permit AL0002666 expired Jan 31, 2019; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form 1 monthly (30 values), outfall 001 form Q quarterly (1 value), outfall 001 form T monthly (2 values), outfall 002 form 1 monthly (4 values), outfall 002 form Q quarterly (1 value), outfall 003 form S twice a year, and 1 more form
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 48 reports late

Limits in force (72)

ParameterStatisticLimitMonthsOutfall
BOD, 5-day, 20 deg. Cdaily maximumreport only (lb/d)all year001
pHdaily minimum≥ 6 SUall year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 1500 lb/dall year001
Solids, total suspendeddaily maximum≤ 3000 lb/dall year001
Nitrogen, total [as N]monthly average≤ 200 lb/dall year001
Nitrogen, total [as N]daily maximum≤ 400 lb/dall year001
Nitrogen, ammonia total [as N]monthly average≤ 83.3 lb/dall year001
Nitrogen, ammonia total [as N]daily maximum≤ 125 lb/dall year001
Nitrite + Nitrate total [as N]daily maximumreport only (lb/d)all year001
Phosphorus, total [as P]daily maximum≤ 50 lb/dall year001
Chloride [as Cl]daily maximumreport only (lb/d)all year001
Sulfate, total [as SO4]daily maximumreport only (lb/d)all year001
Barium, dissolved [as Ba]daily maximum≤ 50 lb/dall year001
Nickel, total recoverabledaily maximumreport only (lb/d)all year001
Silver total recoverablemonthly average≤ .09 lb/dall year001
Silver total recoverabledaily maximum≤ .2 lb/dall year001
Zinc, total recoverabledaily maximumreport only (lb/d)all year001
Aluminum, total recoverabledaily maximumreport only (lb/d)all year001
Lead, total recoverablemonthly average≤ .726 lb/dall year001
Lead, total recoverabledaily maximum≤ 1.45 lb/dall year001
Chromium, total recoverabledaily maximumreport only (lb/d)all year001
Copper, total recoverablemonthly average≤ .89 lb/dall year001
Copper, total recoverabledaily maximum≤ 2.77 lb/dall 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≤ 3.33 lb/dall year001
Toxicity [chronic], Ceriodaphnia dubiasingle sample≤ 0 pass=0;fail=1all year001
Toxicity [chronic], Pimephales promelas [Fathead Minnow]single sample≤ 0 pass=0;fail=1all year001
Solids, total dissolveddaily maximumreport only (lb/d)all year001
Bromide [as Br]monthly average≤ 1107 lb/dall year001
Bromide [as Br]daily maximum≤ 2213 lb/dall year001
Mercury, total recoverabledaily maximumreport only (ug/L)all year001
pHdaily minimum≥ 6 SUall year002
pHdaily maximum≤ 9 SUall 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
Mercury, total recoverabledaily maximumreport only (ug/L)all year002
pHdaily minimumreport only (SU)all year003
pHdaily maximumreport only (SU)all year003
Solids, total suspendeddaily maximumreport only (mg/L)all year003
Oil & Greasedaily maximum≤ 15 mg/Lall year003
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year003
Chloride [as Cl]daily maximumreport only (mg/L)all year003
Sulfate, total [as SO4]daily maximumreport only (mg/L)all year003
Barium, total recoverabledaily maximumreport only (mg/L)all year003
Nickel, total recoverabledaily maximumreport only (mg/L)all year003
Zinc, total recoverabledaily maximumreport only (mg/L)all year003
Aluminum, total recoverabledaily maximumreport only (mg/L)all year003
Chromium, total recoverabledaily maximumreport only (mg/L)all year003
Copper, total recoverabledaily maximumreport only (mg/L)all year003
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year003
Solids, total dissolveddaily maximumreport only (mg/L)all year003
Bromide [as Br]daily maximumreport only (mg/L)all year003
Chemical Oxygen Demand [COD]daily maximumreport only (mg/L)all year003
pHdaily minimumreport only (SU)all year004
pHdaily maximumreport only (SU)all year004
Solids, total suspendeddaily maximumreport only (mg/L)all year004
Oil & Greasedaily maximum≤ 15 mg/Lall year004
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year004
Chloride [as Cl]daily maximumreport only (mg/L)all year004
Sulfate, total [as SO4]daily maximumreport only (mg/L)all year004
Barium, total recoverabledaily maximumreport only (mg/L)all year004
Nickel, total recoverabledaily maximumreport only (mg/L)all year004
Zinc, total recoverabledaily maximumreport only (mg/L)all year004
Aluminum, total recoverabledaily maximumreport only (mg/L)all year004
Chromium, total recoverabledaily maximumreport only (mg/L)all year004
Copper, total recoverabledaily maximumreport only (mg/L)all year004
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year004
Solids, total dissolveddaily maximumreport only (mg/L)all year004
Bromide [as Br]daily maximumreport only (mg/L)all year004
Chemical Oxygen Demand [COD]daily maximumreport only (mg/L)all year004

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

Same industry: the 79 Chemicals and Allied Products permits in Alabama.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/AL0002666 · MCP: https://passage-data.com/mcp