Clean Water Act discharge permit · NPDES AR0033723
EI DORADO, CITY OF - SOUTH PLANT, El Dorado, AR: NPDES AR0033723 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 45Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
EI DORADO, CITY OF - SOUTH PLANT, held by EL DORADO WATER UTILITIES - SOUTH PLANT, holds NPDES permit AR0033723, which discharges to Bu De Loutre,Ouachita R. EPA’s file records it issued December 1, 2014 and expiring December 31, 2019. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | EI DORADO, CITY OF - SOUTH PLANT |
|---|---|
| Permittee as filed | EL DORADO WATER UTILITIES - SOUTH PLANT |
| NPDES ID | AR0033723 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | December 1, 2014 |
| Expiration date | December 31, 2019 |
| Address | El Dorado, AR 71730 |
| Receiving water | BU DE LOUTRE,OUACHITA R |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Crooked Creek-Ouachita River (HUC 080402010803) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 45Pollutants on file
- 45Under a numeric limit
- 35With a violation of any kind
- 6With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Solids, total suspended | 10 | 71 | 45 | July 31, 2026 | 500% over the limit |
| Nitrogen, ammonia total [as N] | 142 | 40 | 30 | April 30, 2013 | 500% over the limit |
| Whole effluent toxicity | 18 | 15 | 11 | June 30, 2013 | 44% over the limit |
| pH | 4 | 17 | 3 | June 30, 2018 | |
| Oil & Grease | 2 | 13 | 3 | May 31, 2024 | 465% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 14 | 22 | 1 | October 31, 2012 | 53% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 14 | 0 | ||
| Selenium, total recoverable | 11 | 12 | 0 | ||
| Copper, total recoverable | 11 | 12 | 0 | ||
| Cyanide, total recoverable | 11 | 12 | 0 | ||
| Nickel, total recoverable | 2 | 12 | 0 | ||
| Silver total recoverable | 2 | 12 | 0 | ||
| Zinc, total recoverable | 2 | 12 | 0 | ||
| Cadmium, total recoverable | 2 | 12 | 0 | ||
| Lead, total recoverable | 2 | 12 | 0 | ||
| Chromium, hexavalent dissolved [as Cr] | 2 | 12 | 0 | ||
| Chromium, trivalent total recoverable | 2 | 12 | 0 | ||
| Coliform, fecal general | 8 | 10 | 0 | ||
| Sulfate | 2 | 10 | 0 | ||
| Phosphorus, total [as P] | 2 | 8 | 0 | ||
| Chloride [as Cl] | 2 | 8 | 0 | ||
| Solids, total dissolved | 2 | 8 | 0 | ||
| Oxygen, dissolved [DO] | 3 | 7 | 0 | ||
| Mercury, total recoverable | 2 | 6 | 0 | ||
| Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia | 3 | 3 | 0 | ||
| Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubia | 3 | 3 | 0 | ||
| Coef Of Var Static Renewal 7Day Chronic Pimephales promelas | 2 | 3 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | 3 | 2 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 3 | 2 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 3 | 2 | 0 | ||
| Temperature, water deg. centigrade | 2 | 1 | 0 | ||
| Pass/Fail Static Renewal 7Day Chronic Pimephales promelas | 2 | 1 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | 2 | 1 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 2 | 1 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 2 | 1 | 0 | ||
| Nitrite + Nitrate total [as N] | 3 | 0 | 0 | ||
| Stream flow, instantaneous | 2 | 0 | 0 | ||
| Overflows | 1 | 0 | 0 | ||
| Overflow volume [SS0 volume, CSO volume] | 1 | 0 | 0 | ||
| Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex | 1 | 0 | 0 | ||
| LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas | 1 | 0 | 0 | ||
| NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex | 1 | 0 | 0 | ||
| NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas | 1 | 0 | 0 | ||
| Coef Of Var Static Renewal 48Hr Acute D. pulex | 1 | 0 | 0 | ||
| Coef Of Var Static Renewal 48Hr Acute Pimephales promelas | 1 | 0 | 0 |
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES AR0033723.
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID AR0033723 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.