Clean Water Act discharge permit · NPDES TX0023914
MCGREGOR SOUTH WWTF, Mcgregor, TX: NPDES TX0023914 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 55Pollutants under a numeric limit
- 9Pollutants with an effluent exceedance
MCGREGOR SOUTH WWTF, held by MCGREGOR, CITY OF, holds NPDES permit TX0023914, which discharges to Middle Bosque/South Bosque River. EPA’s file records it issued December 30, 2013 and expiring December 1, 2018. 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 | MCGREGOR SOUTH WWTF |
|---|---|
| Permittee as filed | MCGREGOR, CITY OF |
| NPDES ID | TX0023914 |
| 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 | December 30, 2013 |
| Expiration date | December 1, 2018 |
| Address | Mcgregor, TX 76657 |
| Receiving water | Middle Bosque/South Bosque River |
| Subwatershed | Willow Creek-South Bosque River (HUC 120602030301) |
| SIC | 4952 – Sewerage Systems |
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
- 58Pollutants on file
- 55Under a numeric limit
- 57With a violation of any kind
- 9With 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 |
|---|---|---|---|---|---|
| Whole effluent toxicity | 4 | 188 | 52 | September 30, 2021 | 99,999% over the limit |
| Nitrogen, ammonia total [as N] | 3 | 429 | 29 | February 28, 2023 | 317% over the limit |
| Solids, total suspended | 3 | 422 | 16 | June 30, 2022 | 148% over the limit |
| E. coli | 2 | 217 | 15 | December 31, 2020 | 11,424% over the limit |
| Chlorine, total residual | 2 | 282 | 13 | June 30, 2013 | 1,314% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 525 | 5 | November 30, 2004 | 110% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 3 | 409 | 3 | April 30, 2020 | 128% over the limit |
| Oxygen, dissolved [DO] | 1 | 138 | 3 | August 31, 2011 | 39% over the limit |
| pH | 3 | 275 | 1 | July 31, 2014 | |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 80 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | 2 | 80 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 80 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 2 | 80 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 80 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 2 | 80 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelas | 2 | 70 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 70 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas | 2 | 70 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 70 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas | 2 | 70 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 68 | 0 | ||
| Phosphorus, total [as P] | 0 | 27 | 0 | ||
| Arsenic, dry weight | 5 | 23 | 0 | ||
| Chromium, sludge, total, dry weight [as Cr] | 5 | 20 | 0 | ||
| Selenium, dry weight | 3 | 15 | 0 | ||
| Copper, dry weight | 3 | 15 | 0 | ||
| Cadmium, dry weight | 3 | 15 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 3 | 15 | 0 | ||
| Zinc, sludge, total, dry weight [as Zn] | 3 | 15 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 3 | 12 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 3 | 12 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 3 | 12 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute D. Pulex | 1 | 11 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute Pimephales promelas | 1 | 11 | 0 | ||
| Nickel, total [as Ni] | 2 | 8 | 0 | ||
| Level of pathogen requirements achieved | 2 | 8 | 0 | ||
| Description of pathogen option used | 2 | 8 | 0 | ||
| Vector attraction reduction alternative used | 2 | 8 | 0 | ||
| Whole Effluent Toxicity [WET] - C. dubia | 0 | 8 | 0 | ||
| Whole Effluent Toxicity [WET] - P. promelas | 0 | 8 | 0 | ||
| Toxicity characteristic leaching procedure | 1 | 6 | 0 | ||
| Polychlorinated biphenyls [PCBs] | 1 | 5 | 0 | ||
| Ann. amt sludge disposed by other method | 1 | 5 | 0 | ||
| Annual amt of sludge incinerated | 1 | 5 | 0 | ||
| Annual sludge production, total | 1 | 5 | 0 | ||
| Annual amount of sludge land applied | 1 | 5 | 0 | ||
| Annual amt. sludge disposed surface unit | 1 | 5 | 0 | ||
| Annual amt sludge disposed in landfill | 1 | 5 | 0 | ||
| Annual amt sludge transported interstate | 1 | 5 | 0 | ||
| Fecal coliform | 1 | 4 | 0 | ||
| Unit w/liner/leachate collection system | 1 | 4 | 0 | ||
| Compliance w/part 258 sludge requirement | 1 | 4 | 0 | ||
| Boundary areas | 1 | 4 | 0 | ||
| Salmonella | 1 | 4 | 0 | ||
| Pollutant table from 503.13 | 1 | 4 | 0 | ||
| Whole effluent toxicity - retest #1 | 1 | 2 | 0 | ||
| Whole effluent toxicity - retest #2 | 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
- 3Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| June 9, 2026 | Permit Violations - Violation Specified in Comment | ST6 |
| June 2, 2021 | Permit Violations - Violation Specified in Comment | ST6 |
| May 10, 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.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.