Clean Water Act discharge permit · NPDES WY0032492
LIMESTONE QUARRY, WY: NPDES WY0032492 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 5Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
LIMESTONE QUARRY, held by Martin Marietta Materials, Inc., holds NPDES permit WY0032492. EPA’s file records it issued September 21, 2016 and expiring September 30, 2021. 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.
What the register holds for LIMESTONE QUARRY: its NPDES ID, its permit type and status, its dates, its address, Wyoming, and 5 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES WY0032492.
Identity
| Facility as filed | LIMESTONE QUARRY |
|---|---|
| Permittee as filed | Martin Marietta Materials, Inc. |
| NPDES ID | WY0032492 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | September 21, 2016 |
| Expiration date | September 30, 2021 |
| Issuing agency | WDEQ |
| Address | WY |
| Subwatershed | Guernsey Fish Pond-North Platte River (HUC 101800080805) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 5Pollutants on file
- 5Under 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 | ||
| pH | 2 | 0 | 0 | ||
| Flow | 2 | 0 | 0 | ||
| Duration | 1 | 0 | 0 | ||
| Produced water, oil and grease | 1 | 0 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES WY0032492.
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 WY0032492.
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
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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 WY0032492 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.