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Small Arms Ammunition, major discharger, Lonoke, Arkansas. NPDES permit AR0001163 expired Oct 31, 2026. Last 12 months: over a limit 4 times (last August 2026), 1 of 51 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Outfall | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|---|
| March 2026 | 04B | Coliform, fecal general, 30-day geometric mean | 1743.43 #/100mL | ≤ 1000 #/100mL | 74% |
| June 2026 | 005 | Oxygen, dissolved [DO], instantaneous minimum | 1.85 mg/L | ≥ 2 mg/L | 8% |
| July 2026 | 005 | Oxygen, dissolved [DO], instantaneous minimum | 1.26 mg/L | ≥ 2 mg/L | 37% |
| August 2026 | 005 | Oxygen, dissolved [DO], instantaneous minimum | 1.18 mg/L | ≥ 2 mg/L | 41% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Streamflow | monthly average | report only (cfs) | all year | 005 |
| Streamflow | daily maximum | report only (cfs) | all year | 005 |
| Oxygen, dissolved [DO] | instantaneous minimum | ≥ 2 mg/L | all year | 005 |
| pH | minimum | ≥ 6 SU | all year | 005 |
| pH | maximum | ≤ 9 SU | all year | 005 |
| Solids, total suspended | monthly average | ≤ 40 mg/L | May–Oct | 005 |
| Solids, total suspended | monthly average | ≤ 90 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 005 |
| Solids, total suspended | daily maximum | ≤ 60 mg/L | May–Oct | 005 |
| Solids, total suspended | daily maximum | ≤ 135 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 005 |
| Oil & Grease | monthly average | ≤ 10 mg/L | all year | 005 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 005 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 8 mg/L | May–Oct | 005 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 15 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 005 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 12 mg/L | May–Oct | 005 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 22.5 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 005 |
| Chloride [as Cl] | monthly average | report only (mg/L) | all year | 005 |
| Chloride [as Cl] | daily maximum | report only (mg/L) | all year | 005 |
| Sulfate, total [as SO4] | monthly average | report only (mg/L) | all year | 005 |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) | all year | 005 |
| Lead, total recoverable | monthly average | report only (ug/L) | all year | 005 |
| Lead, total recoverable | daily maximum | report only (ug/L) | all year | 005 |
| Copper, total recoverable | monthly average | report only (ug/L) | all year | 005 |
| Copper, total recoverable | daily maximum | report only (ug/L) | all year | 005 |
| Discharge flow as % of stream flow | daily maximum | ≤ 2.27 % | all year | 005 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 005 |
| Solids, total dissolved | monthly average | report only (mg/L) | all year | 005 |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year | 005 |
| Coliform, fecal general | monthly geometric mean | report only (#/100mL) | May–Sep | 005 |
| Coliform, fecal general | daily maximum | report only (#/100mL) | May–Sep | 005 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 30 mg/L | May–Oct | 005 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 90 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 005 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ 45 mg/L | May–Oct | 005 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ 135 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 005 |
| pH | minimum | ≥ 7.5 SU | all year | 04A |
| pH | maximum | ≤ 10 SU | all year | 04A |
| Coliform, fecal general | 30-day geometric mean | ≤ 1000 #/100mL | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 04B |
| Coliform, fecal general | 30-day geometric mean | ≤ 200 #/100mL | May–Sep | 04B |
| Coliform, fecal general | 7-day geometric mean | ≤ 2000 #/100mL | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 04B |
| Coliform, fecal general | 7-day geometric mean | ≤ 400 #/100mL | May–Sep | 04B |
| Solids, total suspended | monthly average | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 04C |
| Solids, total suspended | monthly average | report only (mg/L) | May–Oct | 04C |
| Solids, total suspended | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 04C |
| Solids, total suspended | daily maximum | report only (mg/L) | May–Oct | 04C |
| Solids, total suspended | monthly average | ≤ 101.7 lb/d | Jan, Feb, Mar, Apr, Nov, Dec | 04C |
| Solids, total suspended | monthly average | ≤ 91.6 lb/d | May–Oct | 04C |
| Solids, total suspended | daily maximum | ≤ 176.98 lb/d | Jan, Feb, Mar, Apr, Nov, Dec | 04C |
| Solids, total suspended | daily maximum | ≤ 161.9 lb/d | May–Oct | 04C |
| Oil & Grease | monthly average | report only (mg/L) | all year | 04C |
| Oil & Grease | daily maximum | report only (mg/L) | all year | 04C |
| Oil & Grease | monthly average | ≤ 44.3 lb/d | all year | 04C |
| Oil & Grease | daily maximum | ≤ 70.5 lb/d | all year | 04C |
| Nickel, total recoverable | monthly average | report only (ug/L) | all year | 04C |
| Nickel, total recoverable | daily maximum | report only (ug/L) | all year | 04C |
| Nickel, total recoverable | monthly average | ≤ 4.193 lb/d | all year | 04C |
| Nickel, total recoverable | daily maximum | ≤ 6.339 lb/d | all year | 04C |
| Zinc, total recoverable | monthly average | report only (ug/L) | all year | 04C |
| Zinc, total recoverable | daily maximum | report only (ug/L) | all year | 04C |
| Zinc, total recoverable | monthly average | ≤ 2.013 lb/d | all year | 04C |
| Zinc, total recoverable | daily maximum | ≤ 4.821 lb/d | all year | 04C |
| Lead, total recoverable | monthly average | report only (ug/L) | all year | 04C |
| Lead, total recoverable | daily maximum | report only (ug/L) | all year | 04C |
| Lead, total recoverable | monthly average | ≤ 9.79 lb/d | all year | 04C |
| Lead, total recoverable | daily maximum | ≤ 9.84 lb/d | all year | 04C |
| Chromium, total recoverable | monthly average | report only (ug/L) | all year | 04C |
| Chromium, total recoverable | daily maximum | report only (ug/L) | all year | 04C |
| Chromium, total recoverable | monthly average | ≤ .593 lb/d | all year | 04C |
| Chromium, total recoverable | daily maximum | ≤ 1.452 lb/d | all year | 04C |
| Copper, total recoverable | monthly average | report only (ug/L) | all year | 04C |
| Copper, total recoverable | daily maximum | report only (ug/L) | all year | 04C |
| Copper, total recoverable | monthly average | ≤ 3.302 lb/d | all year | 04C |
| Copper, total recoverable | daily maximum | ≤ 6.274 lb/d | all year | 04C |
| Antimony, total recoverable | monthly average | report only (ug/L) | all year | 04C |
| Antimony, total recoverable | daily maximum | report only (ug/L) | all year | 04C |
| Antimony, total recoverable | monthly average | ≤ .782 lb/d | all year | 04C |
| Antimony, total recoverable | daily maximum | ≤ 1.021 lb/d | all year | 04C |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 04C |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 04C |
| Whole effluent toxicity - retest #1 | 7-day minimum | report only (pass=0;fail=1) | all year | TX5 |
| Whole effluent toxicity - retest #2 | 7-day minimum | report only (pass=0;fail=1) | all year | TX5 |
| WET, sublethal retest #1 | 7-day minimum | report only (pass=0;fail=1) | all year | TX5 |
| WET, sublethal retest #2 | 7-day minimum | report only (pass=0;fail=1) | all year | TX5 |
| Whole Effluent Toxicity - Retest #3 | 7-day minimum | report only (pass=0;fail=1) | all year | TX5 |
| Whole Effluent Toxicity, Sub-Lethal Retest #3 | 7-day minimum | report only (pass=0;fail=1) | all year | TX5 |
| Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7-day minimum | report only (pass=0;fail=1) | all year | TX5 |
| Pass/Fail Static Renewal 7Day Chronic Pimephales promelas | 7-day minimum | report only (pass=0;fail=1) | all year | TX5 |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7-day minimum | report only (pass=0;fail=1) | all year | TX5 |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | 7-day minimum | report only (pass=0;fail=1) | all year | TX5 |
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7-day minimum | report only (%) | all year | TX5 |
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 7-day minimum | report only (%) | all year | TX5 |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7-day minimum | report only (%) | all year | TX5 |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 7-day minimum | report only (%) | Jan, Feb, Mar, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec | TX5 |
| Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubia | 7-day minimum | report only (%) | all year | TX5 |
| Coef Of Var Static Renewal 7Day Chronic Pimephales promelas | 7-day minimum | report only (%) | all year | TX5 |
Cited limits by parameter: Arkansas's rules and the federal ones.
Same industry: the 4 Fabricated Metal Products permits in Arkansas.
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On EPA ECHO: Facility report · DMR history
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