Clean Water Act discharge permit · NPDES COR901519
MONAGHAN FACILITY, Aurora, CO: NPDES COR901519 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 1Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
MONAGHAN FACILITY, held by Martin Marietta Materials Inc, holds NPDES permit COR901519, which discharges to Unnamed Tributary To Box Elder Creek. EPA’s file records it issued August 23, 2019 and expiring December 31, 2022. 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 MONAGHAN FACILITY: its NPDES ID, its permit type and status, its dates, its address in Aurora, Colorado, its receiving water, and 1 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES COR901519.
Identity
| Facility as filed | MONAGHAN FACILITY |
|---|---|
| Permittee as filed | Martin Marietta Materials Inc |
| NPDES ID | COR901519 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Industrial stormwater |
| Issued | August 23, 2019 |
| Expiration date | December 31, 2022 |
| Address | Aurora, CO 80019 |
| Receiving water | unnamed tributary to Box Elder Creek |
| Subwatershed | Community of Watkins-Box Elder Creek (HUC 101900030706) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 1Pollutants on file
- 1Under 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 |
|---|---|---|---|---|---|
| Solids, total suspended | 3 | 0 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES COR901519.
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 COR901519.
Velarion’s copy of EPA’s ICIS-NPDES files does not yet 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
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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 COR901519 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.