Clean Water Act discharge permit · NPDES TX0054020
CITY OF CALVERT WWTP, Calvert, TX: NPDES TX0054020 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 37Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
CITY OF CALVERT WWTP, held by CALVERT, CITY OF, holds NPDES permit TX0054020, which discharges to Tidwell Crk;Sandy Crk;Mud Crk;Little Brazos Riv;Br. EPA’s file records it issued April 9, 2019 and expiring April 9, 2024. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | CITY OF CALVERT WWTP |
|---|---|
| Permittee as filed | CALVERT, CITY OF |
| NPDES ID | TX0054020 |
| 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 9, 2019 |
| Expiration date | April 9, 2024 |
| Address | Calvert, TX 77837 |
| Receiving water | TIDWELL CRK;SANDY CRK;MUD CRK;LITTLE BRAZOS RIV;BR |
| Subwatershed | Tidwell Creek-Sandy Creek (HUC 120701010601) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 37Pollutants on file
- 37Under a numeric limit
- 36With 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 | 197 | 96 | May 31, 2026 | 1,118% over the limit |
| E. coli | 2 | 53 | 31 | April 30, 2025 | 99,999% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 83 | 17 | August 31, 2021 | 77,360% over the limit |
| Chlorine, total residual | 2 | 82 | 17 | June 30, 2025 | 100% over the limit |
| Oxygen, dissolved [DO] | 1 | 41 | 6 | September 30, 2024 | 34% over the limit |
| BOD, 5-day, 20 deg. C | 3 | 108 | 3 | March 31, 2021 | 168% over the limit |
| pH | 3 | 83 | 3 | January 31, 2018 | |
| 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 | ||
| Polychlorinated biphenyls [PCBs] | 1 | 9 | 0 | ||
| Fecal coliform | 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 | ||
| 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 amt sludge transported interstate | 1 | 7 | 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
- 4Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| May 3, 2023 | Permit Violations - Violation Specified in Comment | ST6 |
| August 19, 2021 | Permit Violations - Violation Specified in Comment | ST6 |
| July 17, 2018 | Permit Violations - Violation Specified in Comment | ST6 |
| April 18, 2017 | Permit Violations - Violation Specified in Comment | 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, TX0054020.
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 TX0054020 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.