Clean Water Act discharge permit · NPDES MOG491203
LOTAWANA QUARRY, Lee'S Summit, MO: NPDES MOG491203 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 5Pollutants under a numeric limit
- 1Pollutants with an effluent exceedance
LOTAWANA QUARRY, held by Hamm Inc, holds NPDES permit MOG491203, which discharges to Tributary To Lake Lotawana. EPA’s file records it issued July 1, 2022 and expiring April 30, 2027. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | LOTAWANA QUARRY |
|---|---|
| Permittee as filed | Hamm Inc |
| NPDES ID | MOG491203 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Industrial stormwater |
| Issued | July 1, 2022 |
| Expiration date | April 30, 2027 |
| Address | Lee'S Summit, MO 64086 |
| Receiving water | Tributary to Lake Lotawana |
| Subwatershed | West Fork Sni-A-Bar Creek (HUC 103001010501) |
| NAICS | 212312 – Crushed and Broken Limestone Mining and Quarrying |
| SIC | 1422 – Crushed And Broken Limestone |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 6Pollutants on file
- 5Under a numeric limit
- 6With a violation of any kind
- 1With 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 | 2 | 105 | 1 | March 31, 2021 | 5% over the limit |
| Oil and grease [soxhlet extr.] tot. | 2 | 108 | 0 | ||
| pH | 2 | 92 | 0 | ||
| Solids, settleable | 2 | 92 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 52 | 0 | ||
| Storm water flow | 0 | 40 | 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
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| June 4, 2026 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
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, MOG491203.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
How we handle your data → Privacy
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 MOG491203 there.
Nearby on the register
- Discharge permits in Lee'S Summit
- Every permit record in Lee'S Summit, A to Z
- Discharge permits in Missouri
- Every permit record in Missouri, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.