Clean Water Act discharge permit · NPDES MDR003710
VALLEY PROTEINS-DARLING INGREDIENTS LINKWOOD DIVISION, Linkwood, MD: NPDES MDR003710 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 4Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
VALLEY PROTEINS-DARLING INGREDIENTS LINKWOOD DIVISION, held by DARLING INGREDIENTS INC., holds NPDES permit MDR003710, which discharges to Transquaking River/Unknown Tributary. EPA’s file records it issued March 14, 2023 and expiring January 31, 2028. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
What the register holds for VALLEY PROTEINS-DARLING INGREDIENTS LINKWOOD DIVISION: its NPDES ID, its permit type and status, its dates, its address in Linkwood, Maryland, its receiving water, and 4 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MDR003710.
Identity
| Facility as filed | VALLEY PROTEINS-DARLING INGREDIENTS LINKWOOD DIVISION |
|---|---|
| Permittee as filed | DARLING INGREDIENTS INC. |
| NPDES ID | MDR003710 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | March 14, 2023 |
| Expiration date | January 31, 2028 |
| Issuing agency | MARYLAND DEPARTMENT OF THE ENVIRONMENT |
| Address | Linkwood, MD 21835 |
| Receiving water | TRANSQUAKING RIVER/UNKNOWN TRIBUTARY |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Middletown Branch-Transquaking River (HUC 020801100101) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 4Pollutants on file
- 4Under a numeric limit
- 0With a violation of any kind
- 0With 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 |
|---|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | 6 | 0 | 0 | ||
| Solids, total suspended | 6 | 0 | 0 | ||
| Nitrite + Nitrate total [as N] | 6 | 0 | 0 | ||
| Chemical Oxygen Demand [COD] | 6 | 0 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MDR003710.
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 MDR003710.
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.
Watch this permit
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, MDR003710.
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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 MDR003710 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.