Clean Water Act discharge permit · NPDES MOG491273
SHAMROCK GROUP LLC, Mexico, MO: NPDES MOG491273 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 6Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
SHAMROCK GROUP LLC, held by Shamrock Group, LLC, holds NPDES permit MOG491273, which discharges to S. Fk. Salt R.. EPA’s file records it issued March 28, 2014 and expiring October 5, 2016. 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 SHAMROCK GROUP LLC: its NPDES ID, its permit type and status, its dates, its address in Mexico, Missouri, its receiving water, and 6 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MOG491273.
Identity
| Facility as filed | SHAMROCK GROUP LLC |
|---|---|
| Permittee as filed | Shamrock Group, LLC |
| NPDES ID | MOG491273 |
| 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 | March 28, 2014 |
| Expiration date | October 5, 2016 |
| Issuing agency | MODNR-Northeast Regional Office |
| Address | Mexico, MO 65265 |
| Receiving water | S. Fk. Salt R. |
| Subwatershed | Long Branch-South Fork Salt River (HUC 071100060503) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 6Pollutants on file
- 6Under 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 |
|---|---|---|---|---|---|
| pH | 4 | 0 | 0 | ||
| Solids, total suspended | 4 | 0 | 0 | ||
| Solids, settleable | 4 | 0 | 0 | ||
| Oil and grease [soxhlet extr.] tot. | 4 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 0 | 0 | ||
| Storm water flow | 2 | 0 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MOG491273.
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 MOG491273.
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, MOG491273.
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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 MOG491273 there.
Nearby on the register
- Discharge permits in Mexico
- Every permit record in Mexico, A to Z
- Discharge permits in Missouri
- Every permit record in Missouri, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.