Clean Water Act discharge permit · NPDES TX0056707
CITY OF DANBURY CENTRAL WWTP, Danbury, TX: NPDES TX0056707 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 38Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
CITY OF DANBURY CENTRAL WWTP, held by DANBURY, CITY OF, holds NPDES permit TX0056707, which discharges to Flores Bayou;Austin Bayou;Bastrop Bayou Tidal. EPA’s file records it issued April 10, 2019 and expiring April 10, 2024. 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 DANBURY CENTRAL WWTP |
|---|---|
| Permittee as filed | DANBURY, CITY OF |
| NPDES ID | TX0056707 |
| 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 | April 10, 2019 |
| Expiration date | April 10, 2024 |
| Address | Danbury, TX 77534 |
| Receiving water | FLORES BAYOU;AUSTIN BAYOU;BASTROP BAYOU TIDAL |
| Subwatershed | Austin Bayou (HUC 120402050300) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 38Pollutants on file
- 38Under 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 |
|---|---|---|---|---|---|
| Solids, total suspended | 3 | 187 | 29 | July 31, 2021 | 276% over the limit |
| Nitrogen, ammonia total [as N] | 3 | 187 | 27 | September 30, 2022 | 168% over the limit |
| E. coli | 2 | 61 | 19 | April 30, 2020 | 1,648% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 3 | 176 | 14 | June 30, 2026 | 136% over the limit |
| Chlorine, total residual | 2 | 114 | 6 | April 30, 2024 | 40% over the limit |
| Oxygen, dissolved [DO] | 1 | 59 | 5 | November 30, 2004 | 60% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 111 | 2 | July 31, 2024 | 43% over the limit |
| pH | 3 | 116 | 0 | ||
| Arsenic, dry weight | 5 | 40 | 0 | ||
| Chromium, sludge, total, dry weight [as Cr] | 5 | 40 | 0 | ||
| Selenium, dry weight | 3 | 24 | 0 | ||
| Copper, dry weight | 3 | 24 | 0 | ||
| Cadmium, dry weight | 3 | 24 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 3 | 24 | 0 | ||
| Zinc, sludge, total, dry weight [as Zn] | 3 | 24 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 3 | 24 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 3 | 24 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 3 | 24 | 0 | ||
| Nickel, total [as Ni] | 2 | 16 | 0 | ||
| Level of pathogen requirements achieved | 2 | 16 | 0 | ||
| Description of pathogen option used | 2 | 16 | 0 | ||
| Vector attraction reduction alternative used | 2 | 16 | 0 | ||
| Fecal coliform | 1 | 8 | 0 | ||
| Polychlorinated biphenyls [PCBs] | 1 | 8 | 0 | ||
| Toxicity characteristic leaching procedure | 1 | 8 | 0 | ||
| Ann. amt sludge disposed by other method | 1 | 8 | 0 | ||
| Annual amt of sludge incinerated | 1 | 8 | 0 | ||
| Annual sludge production, total | 1 | 8 | 0 | ||
| Annual amount of sludge land applied | 1 | 8 | 0 | ||
| Annual amt. sludge disposed surface unit | 1 | 8 | 0 | ||
| Annual amt sludge disposed in landfill | 1 | 8 | 0 | ||
| Annual amt sludge transported interstate | 1 | 8 | 0 | ||
| Unit w/liner/leachate collection system | 1 | 8 | 0 | ||
| Compliance w/part 258 sludge requirement | 1 | 8 | 0 | ||
| Boundary areas | 1 | 8 | 0 | ||
| Salmonella | 1 | 8 | 0 | ||
| Pollutant table from 503.13 | 1 | 8 | 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
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| December 17, 2025 | Permit Violations - Violation Specified in Comment | ST6 |
Inspections
EPA’s inspection file holds no inspection for NPDES TX0056707.
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 TX0056707.
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, TX0056707.
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 TX0056707 there.
Nearby on the register
- Discharge permits in Danbury
- Every permit record in Danbury, A to Z
- Discharge permits in Texas
- Every permit record in Texas, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.