Clean Water Act discharge permit · NPDES TX0070017
SOUTH MISSION 1 WWTP, Edinburg, TX: NPDES TX0070017 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 55Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
SOUTH MISSION 1 WWTP, held by CITY OF MISSION, holds NPDES permit TX0070017, which discharges to Ditch;Main Flodowater Pilot Channel;Llano Grande L. EPA’s file records it issued March 6, 2019 and expiring March 6, 2022.
SOUTH MISSION 1 WWTP, Edinburg, Texas: Individual permit TX0070017, held by CITY OF MISSION; Publicly owned treatment works; Administratively continued (past its expiration date and still in force until reissued); issued March 6, 2019, term to March 6, 2022; discharges to DITCH;MAIN FLODOWATER PILOT CHANNEL;LLANO GRANDE L.
- Nitrogen, ammonia total [as N]: 3 limits, 21 violations of any kind, 18 effluent exceedances, latest August 31, 2007, largest 528% over the limit.
- Flow, in conduit or thru treatment plant: 4 limits, 19 violations of any kind, 15 effluent exceedances, latest April 30, 2007, largest 37% over the limit.
- Solids, total suspended: 3 limits, 17 violations of any kind, 14 effluent exceedances, latest April 30, 2006, largest 275% over the limit.
- BOD, carbonaceous [5 day, 20 C]: 3 limits, 16 violations of any kind, 13 effluent exceedances, latest October 31, 2017, largest 320% over the limit.
- Whole effluent toxicity: 2 limits, 8 violations of any kind, 6 effluent exceedances, latest December 31, 2022, largest 100% over the limit.
- E. coli: 2 limits, 7 violations of any kind, 5 effluent exceedances, latest February 28, 2021, largest 38% over the limit.
- Whole Effluent Toxicity [WET] - C. dubia: 2 limits, 1 violation of any kind, 1 effluent exceedance, latest December 31, 2022, largest 25% over the limit.
- Arsenic, dry weight: 5 limits, 5 violations of any kind, 0 effluent exceedances.
- Chromium, sludge, total, dry weight [as Cr]: 5 limits, 5 violations of any kind, 0 effluent exceedances.
- pH: 3 limits, 3 violations of any kind, 0 effluent exceedances.
- Selenium, dry weight: 3 limits, 3 violations of any kind, 0 effluent exceedances.
- Copper, dry weight: 3 limits, 3 violations of any kind, 0 effluent exceedances.
- Cadmium, dry weight: 3 limits, 3 violations of any kind, 0 effluent exceedances.
- Molybdenum, sludge, total, dry weight [as Mo]: 3 limits, 3 violations of any kind, 0 effluent exceedances.
- Zinc, sludge, total, dry weight [as Zn]: 3 limits, 3 violations of any kind, 0 effluent exceedances.
- Lead, sludge, total, dry weight [as Pb]: 3 limits, 3 violations of any kind, 0 effluent exceedances.
- Nickel, sludge, total, dry weight [as Ni]: 3 limits, 3 violations of any kind, 0 effluent exceedances.
- Mercury, sludge, total, dry weight [as Hg]: 3 limits, 3 violations of any kind, 0 effluent exceedances.
- Description of pathogen option used: 2 limits, 3 violations of any kind, 0 effluent exceedances.
- Nickel, total [as Ni]: 2 limits, 2 violations of any kind, 0 effluent exceedances.
- Level of pathogen requirements achieved: 2 limits, 2 violations of any kind, 0 effluent exceedances.
- Vector attraction reduction alternative used: 2 limits, 2 violations of any kind, 0 effluent exceedances.
- Pollutant table from 503.13: 1 limit, 2 violations of any kind, 0 effluent exceedances.
- Oxygen, dissolved [DO]: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Fecal coliform: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Polychlorinated biphenyls [PCBs]: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Toxicity characteristic leaching procedure: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Ann. amt sludge disposed by other method: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Annual amt of sludge incinerated: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Annual sludge production, total: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Annual amount of sludge land applied: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Annual amt. sludge disposed surface unit: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Annual amt sludge disposed in landfill: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Annual amt sludge transported interstate: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Unit w/liner/leachate collection system: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Boundary areas: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Salmonella: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- LC50 Pass/Fail Static 24Hr Acute D. Pulex: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- LC50 Pass/Fail Static 24Hr Acute Pimephales promelas: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Whole effluent toxicity - retest #1: 3 limits, 0 violations of any kind, 0 effluent exceedances.
- Whole effluent toxicity - retest #2: 3 limits, 0 violations of any kind, 0 effluent exceedances.
- Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelas: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Annual whole sludge application rate: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- Compliance w/part 258 sludge requirement: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- October 7, 2025: Permit Violations - Violation Specified in Comment (ST6).
- February 13, 2024: Permit Violations - Violation Specified in Comment (ST6).
Texas holds 1,720 Publicly owned treatment works coverages of this permit type in EPA’s file; 1,019 were issued before TX0070017.
Coverages issued nearest TX0070017
- March 6, 2019: PLUM CREEK WWTP, Shackelford County, TX0002011, held by ALBANY, CITY OF
- March 6, 2019: TOWN PLANT WWTP, Iredell, TX0024848, held by IREDELL, CITY OF
- March 6, 2019: CITY OF TOLAR WWTP, Tolar, TX0027685, held by CITY OF TOLAR
- March 6, 2019: TEXAS A&M MP AGRILIFE RESEARCH CTR BEAUMONT WWTF, Beaumont, TX0030953, held by TEXAS A & M UNIVERSITY
- March 6, 2019: CITY OF THORNDALE WWTP, Thorndale, TX0032379, held by THORNDALE, CITY OF
- March 6, 2019: CITY OF BURTON WWTP, Burton, TX0083089, held by BURTON, CITY OF
- March 6, 2019: FORT BEND COUNTY MUD 118 WWTP, Fort Bend County, TX0116386, held by FORT BEND COUNTY MUD NO.118
- March 6, 2019: SPLENDORA HIGH SCHOOL, Splendora, TX0117463, held by SPLENDORA HIGH SCHOOL ISD
- March 6, 2019: CITY OF CRANFILLS GAP WWTP, Cranfills Gap, TX0122360, held by CRANFILLS GAP, CITY OF
- March 11, 2019: CITY OF ROSEBUD WWTP, Rosebud, TX0023981, held by ROSEBUD, CITY OF
SOUTH MISSION 1 WWTP among its neighbors
EPA’s permit file holds 185 discharge permits in the Llano Grande Lake-Arroyo Colorado subwatershed (HUC 121102080100), TX0070017 among them. Its county holds 439, 16 of them major permits; TX0070017 is a major permit.
Other permits in the Llano Grande Lake-Arroyo Colorado subwatershed (HUC 121102080100)
- 365 TOLL PROJECT SEGMENT 1 & 2, Mcallen: TXR1594WP, minor permit, discharging to HIDALGO COUNTY DRAINAGE DISTRICT NO. 1, permit term to March 4, 2028
- AEP - DEL SOL TO FRONTERA ELECTRICAL T-LINE CONSTR, Palmview: TXR1571UC, minor permit, discharging to LOWER LAGUNA MADRE, permit term to March 4, 2028
- ALAMO CONCRETE PRODUCTS PLANT 89, Mission: TXG110940, minor permit, discharging to ARROYO COLORADO, permit term to November 7, 2021
- ALAMO METAL RECYCLING, Alamo: TXR05EZ37, minor permit, permit term to August 13, 2026
- ALAMO TRUCK SALES & USED PARTS, Alamo: TXR05FL19, minor permit, permit term to August 13, 2026
- ALTO BONITO SUBDIVISION, Weslaco: TXR1581TP, minor permit, discharging to ARROYO COLORADO ABOVE TIDAL, permit term to March 4, 2028
- AMERICAN USED AUTO PARTS, Alamo: TXR05GF71, minor permit, permit term to August 13, 2026
- AMERICAN USED AUTO PARTS, Alamo: TXR05HD02, minor permit, permit term to August 13, 2031
- AMIGASO JUNKYARD & AUTO SALVAGE, Alamo: TXR05FS43, minor permit, permit term to August 13, 2026
- ANACUA SENIOR VILLAGE, Mission: TXR1535VD, minor permit, discharging to DRAINAGE DITCHES FLOWING INTO ARROYO COLORADO ABOV, permit term to March 4, 2028
Identity
| Facility as filed | SOUTH MISSION 1 WWTP |
|---|---|
| Permittee as filed | CITY OF MISSION |
| NPDES ID | TX0070017 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | March 6, 2019 |
| Expiration date | March 6, 2022 |
| Address | Edinburg, TX 78572 |
| Receiving water | DITCH;MAIN FLODOWATER PILOT CHANNEL;LLANO GRANDE L |
| Subwatershed | Llano Grande Lake-Arroyo Colorado (HUC 121102080100) |
| Program components on file | POTW, Pretreatment |
| SIC | 4952 – Sewerage Systems |
Effluent limits and exceedances
- 55Pollutants on file
- 55Under a numeric limit
- 39With 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 | 21 | 18 | August 31, 2007 | 528% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 19 | 15 | April 30, 2007 | 37% over the limit |
| Solids, total suspended | 3 | 17 | 14 | April 30, 2006 | 275% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 3 | 16 | 13 | October 31, 2017 | 320% over the limit |
| Whole effluent toxicity | 2 | 8 | 6 | December 31, 2022 | 100% over the limit |
| E. coli | 2 | 7 | 5 | February 28, 2021 | 38% over the limit |
| Whole Effluent Toxicity [WET] - C. dubia | 2 | 1 | 1 | December 31, 2022 | 25% over the limit |
| Arsenic, dry weight | 5 | 5 | 0 | ||
| Chromium, sludge, total, dry weight [as Cr] | 5 | 5 | 0 | ||
| pH | 3 | 3 | 0 | ||
| Selenium, dry weight | 3 | 3 | 0 | ||
| Copper, dry weight | 3 | 3 | 0 | ||
| Cadmium, dry weight | 3 | 3 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 3 | 3 | 0 | ||
| Zinc, sludge, total, dry weight [as Zn] | 3 | 3 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 3 | 3 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 3 | 3 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 3 | 3 | 0 | ||
| Description of pathogen option used | 2 | 3 | 0 | ||
| Nickel, total [as Ni] | 2 | 2 | 0 | ||
| Level of pathogen requirements achieved | 2 | 2 | 0 | ||
| Vector attraction reduction alternative used | 2 | 2 | 0 | ||
| Pollutant table from 503.13 | 1 | 2 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 1 | 0 | ||
| Fecal coliform | 1 | 1 | 0 | ||
| Polychlorinated biphenyls [PCBs] | 1 | 1 | 0 | ||
| Toxicity characteristic leaching procedure | 1 | 1 | 0 | ||
| Ann. amt sludge disposed by other method | 1 | 1 | 0 | ||
| Annual amt of sludge incinerated | 1 | 1 | 0 | ||
| Annual sludge production, total | 1 | 1 | 0 | ||
| Annual amount of sludge land applied | 1 | 1 | 0 | ||
| Annual amt. sludge disposed surface unit | 1 | 1 | 0 | ||
| Annual amt sludge disposed in landfill | 1 | 1 | 0 | ||
| Annual amt sludge transported interstate | 1 | 1 | 0 | ||
| Unit w/liner/leachate collection system | 1 | 1 | 0 | ||
| Boundary areas | 1 | 1 | 0 | ||
| Salmonella | 1 | 1 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute D. Pulex | 1 | 1 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute Pimephales promelas | 1 | 1 | 0 | ||
| Whole effluent toxicity - retest #1 | 3 | 0 | 0 | ||
| Whole effluent toxicity - retest #2 | 3 | 0 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 0 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | 2 | 0 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 0 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 2 | 0 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 0 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 2 | 0 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 0 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelas | 2 | 0 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 0 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas | 2 | 0 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 0 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas | 2 | 0 | 0 | ||
| Annual whole sludge application rate | 1 | 0 | 0 | ||
| Compliance w/part 258 sludge requirement | 1 | 0 | 0 |
Inspections, violations and enforcement
- 2Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| October 7, 2025 | Permit Violations - Violation Specified in Comment | ST6 |
| February 13, 2024 | Permit Violations - Violation Specified in Comment | ST6 |
Inspections
EPA’s inspection file holds no inspection for NPDES TX0070017.
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 TX0070017.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.