Clean Water Act discharge permit · NPDES MORA28944
WELDON SPRINGS DWTP, Defiance, MO: NPDES MORA28944 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
WELDON SPRINGS DWTP, held by PWSD #2 OF ST. CHARLES CO, holds NPDES permit MORA28944, which discharges to Tributary To Missouri R.. EPA’s file records it issued October 8, 2025 and expiring February 7, 2027. 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 WELDON SPRINGS DWTP: its NPDES ID, its permit type and status, its dates, its address in Defiance, Missouri, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MORA28944.
Identity
| Facility as filed | WELDON SPRINGS DWTP |
|---|---|
| Permittee as filed | PWSD #2 OF ST. CHARLES CO |
| NPDES ID | MORA28944 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Construction stormwater |
| Issued | October 8, 2025 |
| Expiration date | February 7, 2027 |
| Address | Defiance, MO 63341 |
| Receiving water | Tributary to Missouri R. |
| Subwatershed | Femme Osage Creek (HUC 103002000606) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 0Pollutants on file
- 0Under a numeric limit
- 0With a violation of any kind
- 0With an effluent exceedance
EPA’s limits and effluent violation files hold no pollutant row for NPDES MORA28944.
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 MORA28944.
Inspections
EPA’s inspection file holds no inspection for NPDES MORA28944.
Formal enforcement and penalties
0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.
Informal enforcement
EPA’s informal enforcement file holds no action for NPDES MORA28944.
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, MORA28944.
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 MORA28944 there.
WELDON SPRINGS DWTP, Defiance, Missouri: Coverage under a general permit MORA28944, held by PWSD #2 OF ST. CHARLES CO; Construction stormwater; Effective; issued October 8, 2025, term to February 7, 2027; discharges to Tributary to Missouri R..
Missouri holds 5,942 Construction stormwater coverages of this permit type in EPA’s file; 4,810 were issued before MORA28944.
Coverages issued nearest MORA28944
- 2025-10-06: TRAINING AREA 190, Fort Leonard Wood: MORA28942, held by Fort Leonard Wood
- 2025-10-07: CONVENIENCE STORE WITH FUEL SALES, O'Fallon: MORA28957, held by Convenience Store with Fuel Sales
- 2025-10-08: OZARK FIRE STATION #1, Ozark: MORA28909, held by Ozark Fire Protection District
- 2025-10-08: HOME2 SUITES - KEENE COURT HOTEL, Columbia: MORA28937, held by Bryan Columbia Hotel LLC
- 2025-10-08: MNC - NW 85TH TERRACE PARKING EXPANSION, Kansas City: MORA28940, held by IAS Partners, Inc.
- 2025-10-08: W TERRA LANE, O'Fallon: MORA28956, held by Kuesel Holding Company
- 2025-10-08: WASHINGTON REGIONAL AIRPORT, Marthasville: MORA28959, held by CITY OF WASHINGTON
- 2025-10-08: TIMBERLINE ESTATES, Nixa: MORA28961, held by Gregg and Inman, LLC
- 2025-10-08: PROGRESS STREET BUILDINGS, Cape Girardeau: MORA28962, held by D and L Haertling, LLC
- 2025-10-08: MIDWAY READY MIX, Saint Joseph: MORA28965, held by Midway Ready Mix
WELDON SPRINGS DWTP among its neighbors
7 discharge permits are in the Femme Osage Creek subwatershed (HUC 103002000606); MORA28944 is one. Its county: 774, 9 major; MORA28944 is minor permit.
Other permits in the Femme Osage Creek subwatershed (HUC 103002000606)
- BMC STONE LLC DEFIANCE QUARRY, Defiance: MOG490017, minor, term to 2027-04-30
- DJM ECOLOBICAL SERVICES, Hazelwood: MORA29413, minor, term to 2027-02-07
- HIGHWAY D AND DD OUTDOOR SELF-STORAGE, Defiance: MORA24705, minor, term to 2027-02-07
- SWEET PEA B AND B WWTP, Defiance: MO0114651, minor, term to 2021-06-30
- THE MERRY HOUSE INN WWTF, Defiance: MOGD00558, minor, term to 2024-06-30
- THE MERRY HOUSE INN WWTF, Defiance: MOGDS0017, minor, term to 2029-06-30
Nearby on the register
- Discharge permits in Defiance
- Every permit record in Defiance, 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.
What this page shows
The WELDON SPRINGS DWTP is one of 604 storm water construction permits in St. Charles County, and 84.3% of those permits carry an earlier issue date than this one. The permit is also one of 7 NPDES permits in the Femme Osage Creek subwatershed, and it has no pollutants under a numeric limit or effluent exceedances on record.