White River Energetics, LLC — NPDES permit AR0053457: limits, due date and EPA's record

Small Arms Ammunition, Des Arc, Arkansas. NPDES permit AR0053457, in force until May 31, 2030. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Limits in force (114)

Parameter	Statistic	Limit	Months	Outfall
Oxygen, dissolved [DO]	instantaneous minimum	≥ 2 mg/L	May–Oct	001
Oxygen, dissolved [DO]	instantaneous minimum	≥ 5 mg/L	Jan, Feb, Mar, Apr, Nov, Dec	001
Oxygen demand, chem. [low level] [COD]	monthly average	≤ 50 mg/L	all year	001
Oxygen demand, chem. [low level] [COD]	daily maximum	≤ 75 mg/L	all year	001
Oxygen demand, chem. [low level] [COD]	monthly average	≤ .13 lb/d	all year	001
Oxygen demand, chem. [low level] [COD]	daily maximum	≤ .19 lb/d	all year	001
pH	minimum	≥ 6 SU	all year	001
pH	maximum	≤ 9 SU	all year	001
Solids, total suspended	monthly average	≤ 20 mg/L	all year	001
Solids, total suspended	daily maximum	≤ 30 mg/L	all year	001
Solids, total suspended	monthly average	≤ .05 lb/d	all year	001
Solids, total suspended	daily maximum	≤ .075 lb/d	all year	001
Oil & Grease	monthly average	≤ 10 mg/L	all year	001
Oil & Grease	daily maximum	≤ 15 mg/L	all year	001
Chloride [as Cl]	monthly average	≤ 250 mg/L	all year	001
Chloride [as Cl]	daily maximum	≤ 375 mg/L	all year	001
Chloride [as Cl]	monthly average	≤ .63 lb/d	all year	001
Chloride [as Cl]	daily maximum	≤ .94 lb/d	all year	001
Sulfate, total [as SO4]	monthly average	≤ 250 mg/L	all year	001
Sulfate, total [as SO4]	daily maximum	≤ 375 mg/L	all year	001
Sulfate, total [as SO4]	monthly average	≤ .63 lb/d	all year	001
Sulfate, total [as SO4]	daily maximum	≤ .94 lb/d	all year	001
Iron, dissolved [as Fe]	monthly average	≤ 1 mg/L	all year	001
Iron, dissolved [as Fe]	daily maximum	≤ 2 mg/L	all year	001
Iron, dissolved [as Fe]	monthly average	≤ .0025 lb/d	all year	001
Iron, dissolved [as Fe]	daily maximum	≤ .005 lb/d	all year	001
Manganese, dissolved [as Mn]	monthly average	≤ 1 mg/L	all year	001
Manganese, dissolved [as Mn]	daily maximum	≤ 2 mg/L	all year	001
Manganese, dissolved [as Mn]	monthly average	≤ .0025 lb/d	all year	001
Manganese, dissolved [as Mn]	daily maximum	≤ .005 lb/d	all year	001
Aluminum, dissolved [as Al]	monthly average	report only (mg/L)	all year	001
Aluminum, dissolved [as Al]	daily maximum	report only (mg/L)	all year	001
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year	001
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	001
Solids, total dissolved	monthly average	≤ 500 mg/L	all year	001
Solids, total dissolved	daily maximum	≤ 750 mg/L	all year	001
Solids, total dissolved	monthly average	≤ 1.3 lb/d	all year	001
Solids, total dissolved	daily maximum	≤ 1.9 lb/d	all year	001
Oxygen, dissolved [DO]	instantaneous minimum	≥ 2 mg/L	May–Oct	002
Oxygen, dissolved [DO]	instantaneous minimum	≥ 5 mg/L	Jan, Feb, Mar, Apr, Nov, Dec	002
Oxygen demand, chem. [low level] [COD]	monthly average	≤ 50 mg/L	all year	002
Oxygen demand, chem. [low level] [COD]	daily maximum	≤ 75 mg/L	all year	002
Oxygen demand, chem. [low level] [COD]	monthly average	≤ .042 lb/d	all year	002
Oxygen demand, chem. [low level] [COD]	daily maximum	≤ .063 lb/d	all year	002
pH	minimum	≥ 6 SU	all year	002
pH	maximum	≤ 9 SU	all year	002
Solids, total suspended	monthly average	≤ 20 mg/L	all year	002
Solids, total suspended	daily maximum	≤ 30 mg/L	all year	002
Solids, total suspended	monthly average	≤ .017 lb/d	all year	002
Solids, total suspended	daily maximum	≤ .025 lb/d	all year	002
Oil & Grease	monthly average	≤ 10 mg/L	all year	002
Oil & Grease	daily maximum	≤ 15 mg/L	all year	002
Chloride [as Cl]	monthly average	≤ 250 mg/L	all year	002
Chloride [as Cl]	daily maximum	≤ 375 mg/L	all year	002
Chloride [as Cl]	monthly average	≤ .21 lb/d	all year	002
Chloride [as Cl]	daily maximum	≤ .31 lb/d	all year	002
Sulfate, total [as SO4]	monthly average	≤ 250 mg/L	all year	002
Sulfate, total [as SO4]	daily maximum	≤ 375 mg/L	all year	002
Sulfate, total [as SO4]	monthly average	≤ .21 lb/d	all year	002
Sulfate, total [as SO4]	daily maximum	≤ .31 lb/d	all year	002
Iron, dissolved [as Fe]	monthly average	≤ 1 mg/L	all year	002
Iron, dissolved [as Fe]	daily maximum	≤ 2 mg/L	all year	002
Iron, dissolved [as Fe]	monthly average	≤ .00083 lb/d	all year	002
Iron, dissolved [as Fe]	daily maximum	≤ .0017 lb/d	all year	002
Manganese, dissolved [as Mn]	monthly average	≤ 1 mg/L	all year	002
Manganese, dissolved [as Mn]	daily maximum	≤ 2 mg/L	all year	002
Manganese, dissolved [as Mn]	monthly average	≤ .00083 lb/d	all year	002
Manganese, dissolved [as Mn]	daily maximum	≤ .0017 lb/d	all year	002
Aluminum, dissolved [as Al]	monthly average	report only (mg/L)	all year	002
Aluminum, dissolved [as Al]	daily maximum	report only (mg/L)	all year	002
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year	002
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	002
Solids, total dissolved	monthly average	≤ 500 mg/L	all year	002
Solids, total dissolved	daily maximum	≤ 750 mg/L	all year	002
Solids, total dissolved	monthly average	≤ .42 lb/d	all year	002
Solids, total dissolved	daily maximum	≤ .63 lb/d	all year	002
Oxygen, dissolved [DO]	instantaneous minimum	≥ 2 mg/L	May–Oct	003
Oxygen, dissolved [DO]	instantaneous minimum	≥ 5 mg/L	Jan, Feb, Mar, Apr, Nov, Dec	003
Oxygen demand, chem. [low level] [COD]	monthly average	≤ 50 mg/L	all year	003
Oxygen demand, chem. [low level] [COD]	daily maximum	≤ 75 mg/L	all year	003
Oxygen demand, chem. [low level] [COD]	monthly average	≤ .021 lb/d	all year	003
Oxygen demand, chem. [low level] [COD]	daily maximum	≤ .031 lb/d	all year	003
pH	minimum	≥ 6 SU	all year	003
pH	maximum	≤ 9 SU	all year	003
Solids, total suspended	monthly average	≤ 20 mg/L	all year	003
Solids, total suspended	daily maximum	≤ 30 mg/L	all year	003
Solids, total suspended	monthly average	≤ .0083 lb/d	all year	003
Solids, total suspended	daily maximum	≤ .013 lb/d	all year	003
Oil & Grease	monthly average	≤ 10 mg/L	all year	003
Oil & Grease	daily maximum	≤ 15 mg/L	all year	003
Chloride [as Cl]	monthly average	≤ 250 mg/L	all year	003
Chloride [as Cl]	daily maximum	≤ 375 mg/L	all year	003
Chloride [as Cl]	monthly average	≤ .1 lb/d	all year	003
Chloride [as Cl]	daily maximum	≤ .16 lb/d	all year	003
Sulfate, total [as SO4]	monthly average	≤ 250 mg/L	all year	003
Sulfate, total [as SO4]	daily maximum	≤ 375 mg/L	all year	003
Sulfate, total [as SO4]	monthly average	≤ .1 lb/d	all year	003
Sulfate, total [as SO4]	daily maximum	≤ .16 lb/d	all year	003
Iron, dissolved [as Fe]	monthly average	≤ 1 mg/L	all year	003
Iron, dissolved [as Fe]	daily maximum	≤ 2 mg/L	all year	003
Iron, dissolved [as Fe]	monthly average	≤ .00042 lb/d	all year	003
Iron, dissolved [as Fe]	daily maximum	≤ .00083 lb/d	all year	003
Manganese, dissolved [as Mn]	monthly average	≤ 1 mg/L	all year	003
Manganese, dissolved [as Mn]	daily maximum	≤ 2 mg/L	all year	003
Manganese, dissolved [as Mn]	monthly average	≤ .00042 lb/d	all year	003
Manganese, dissolved [as Mn]	daily maximum	≤ .00083 lb/d	all year	003
Aluminum, dissolved [as Al]	monthly average	report only (mg/L)	all year	003
Aluminum, dissolved [as Al]	daily maximum	report only (mg/L)	all year	003
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year	003
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	003
Solids, total dissolved	monthly average	≤ 500 mg/L	all year	003
Solids, total dissolved	daily maximum	≤ 750 mg/L	all year	003
Solids, total dissolved	monthly average	≤ .21 lb/d	all year	003
Solids, total dissolved	daily maximum	≤ .31 lb/d	all year	003

How strict are these limits?

Your permit document is the final word. As JSON: /api/v1/permits/AR0053457 · MCP: https://passage-data.com/mcp