Clean Water Act discharge permit · NPDES TX0024970
CITY OF CADDO MILLS WWTP, Caddo Mills, TX: NPDES TX0024970 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 36Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
CITY OF CADDO MILLS WWTP, held by CADDO MILLS, CITY OF, holds NPDES permit TX0024970, which discharges to West Caddo Creek, Caddo Creek, Lake. EPA’s file records it issued May 23, 2006 and expiring March 1, 2011. 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.
Identity
| Facility as filed | CITY OF CADDO MILLS WWTP |
|---|---|
| Permittee as filed | CADDO MILLS, CITY OF |
| NPDES ID | TX0024970 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | May 23, 2006 |
| Expiration date | March 1, 2011 |
| Address | Caddo Mills, TX 75135 |
| Receiving water | WEST CADDO CREEK, CADDO CREEK, LAKE |
| Subwatershed | West Caddo Creek (HUC 120100010201) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 38Pollutants on file
- 36Under a numeric limit
- 37With a violation of any kind
- 7With 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 |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 3 | 106 | 71 | May 31, 2010 | 290% over the limit |
| Oxygen, dissolved [DO] | 1 | 37 | 22 | September 30, 2009 | 75% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 37 | 9 | March 31, 2008 | 63,900% over the limit |
| Solids, total suspended | 3 | 60 | 7 | November 30, 2005 | 150% over the limit |
| BOD, 5-day, 20 deg. C | 0 | 20 | 5 | November 30, 2005 | 185% over the limit |
| pH | 3 | 45 | 3 | January 31, 2010 | |
| BOD, carbonaceous [5 day, 20 C] | 3 | 40 | 1 | August 31, 2006 | 21% over the limit |
| E. coli | 0 | 16 | 0 | ||
| Chromium, sludge, total, dry weight [as Cr] | 5 | 15 | 0 | ||
| Arsenic, dry weight | 5 | 12 | 0 | ||
| Selenium, dry weight | 3 | 7 | 0 | ||
| Copper, dry weight | 3 | 6 | 0 | ||
| Cadmium, dry weight | 3 | 6 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 3 | 6 | 0 | ||
| Zinc, sludge, total, dry weight [as Zn] | 3 | 6 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 3 | 6 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 3 | 6 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 3 | 6 | 0 | ||
| Nickel, total [as Ni] | 2 | 6 | 0 | ||
| Level of pathogen requirements achieved | 2 | 6 | 0 | ||
| Description of pathogen option used | 2 | 6 | 0 | ||
| Vector attraction reduction alternative used | 2 | 6 | 0 | ||
| Unit w/liner/leachate collection system | 1 | 3 | 0 | ||
| Boundary areas | 1 | 3 | 0 | ||
| Pollutant table from 503.13 | 1 | 3 | 0 | ||
| Fecal coliform | 1 | 2 | 0 | ||
| Polychlorinated biphenyls [PCBs] | 1 | 2 | 0 | ||
| Toxicity characteristic leaching procedure | 1 | 2 | 0 | ||
| Ann. amt sludge disposed by other method | 1 | 2 | 0 | ||
| Annual amt of sludge incinerated | 1 | 2 | 0 | ||
| Annual sludge production, total | 1 | 2 | 0 | ||
| Annual amount of sludge land applied | 1 | 2 | 0 | ||
| Annual amt. sludge disposed surface unit | 1 | 2 | 0 | ||
| Annual amt sludge disposed in landfill | 1 | 2 | 0 | ||
| Annual amt sludge transported interstate | 1 | 2 | 0 | ||
| Compliance w/part 258 sludge requirement | 1 | 2 | 0 | ||
| Salmonella | 1 | 2 | 0 | ||
| Annual whole sludge application rate | 1 | 0 | 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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES TX0024970.
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 TX0024970 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.