City of Weslaco (TX) Water Quality

City of Weslaco is a large public water system in EPA region 6 that provides tap water for the 78596 zip codes. It has 7 facilities where the water supply was tested for 78 chemical contaminants that impact tap water quality and human health.

The maximum reported level of HAA5 (five regulated haloacetic acids) was 15.75 µg/L. The maximum reported level of Manganese was 3.4 µg/L. There were 2 contamintants found in the City of Weslaco water supply at levels that were above the minimum reporting level.

Table of Contents
Contaminants
Facilities
FAQ

Contaminants

Jump To Contaminant
1,1-dichloroethane (4)
1,2,3-trichloropropane (4)
1,3-butadiene (4)
1,4-dioxane (4)
1-butanol (4)
11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (1)
1H,1H,2H,2H-perfluorodecane sulfonic acid (1)
1H,1H,2H,2H-perfluorohexane sulfonic acid (1)
1H,1H,2H,2H-perfluorooctane sulfonic acid (1)
2,4-dinitrotoluene (4)
2,6-dinitrotoluene (4)
2-methoxyethanol (4)
2-propen-1-ol (Allyl Alcohol) (4)
4,4'-dichloro dichlorophenyl ethylene (DDE) (4)
4,8-dioxa-3H-perfluorononanoic acid (1)
9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (1)
alpha-hexachlorocyclohexane (4)
anatoxin-a (8)
bromochloromethane (Halon 1011) (4)
bromomethane (4)
Butylated Hydroxyanisole (4)
chlorate (8)
chlorodifluoromethane (HCFC-22) (4)
chloromethane (4)
chlorpyrifos (4)
chromium (8)
chromium-6 (8)
cobalt (8)
cylindrospermopsin (8)
dimethipin (4)
dimethyl tetrachloroterephthalate (DCPA) mono/di-acid degradate (4)
ethoprop (4)
Germanium (4)
HAA5 (five regulated haloacetic acids) (16)
HAA6Br (six brominated haloacetic acids) (16)
HAA9 (nine haloacetic acids) (16)
hexafluoropropylene oxide dimer acid (GenX) (1)
lithium (2)
Manganese (4)
methyl-tertiary-butyl-ether (MTBE) (4)
molinate (4)
molybdenum (8)
N-ethyl perfluorooctanesulfonamidoacetic acid (2)
N-methyl perfluorooctanesulfonamidoacetic acid (2)
nitrobenzene (4)
nonafluoro-3,6-dioxaheptanoic acid (1)
o-toluidine (4)
oxyfluorfen (4)
perchlorate (4)
perfluoro(2-ethoxyethane)sulfonic acid (1)
perfluoro-3-methoxypropanoic acid (1)
perfluoro-4-methoxybutanoic acid (1)
perfluorobutanesulfonic acid (5)
perfluorobutanoic acid (1)
perfluorodecanoic acid (1)
perfluorododecanoic acid (1)
perfluoroheptanesulfonic acid (1)
perfluoroheptanoic acid (5)
perfluorohexanesulfonic acid (5)
perfluorohexanoic acid (1)
perfluorononanoic acid (5)
perfluorooctanesulfonic acid (5)
perfluorooctanoic acid (5)
perfluoropentanesulfonic acid (1)
perfluoropentanoic acid (1)
perfluorotetradecanoic acid (2)
perfluorotridecanoic acid (2)
perfluoroundecanoic acid (1)
profenofos (4)
quinoline (4)
s-ethyl-dipropylthiocarbamate (EPTC) (4)
strontium (8)
tebuconazole (4)
terbacil (4)
total microcystins (8)
Total Permethrin (4)
tribufos (4)
vanadium (8)

1,1-dichloroethane (4)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.03 µg/L

Below Reporting Level

5/28/2015

10 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.03 µg/L

Below Reporting Level

2/11/2015

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.03 µg/L

Below Reporting Level

11/20/2014

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.03 µg/L

Below Reporting Level

8/7/2014

11 years ago

Minimum Reporting Level: 0.03 µg/L
Reference Level: ?

Contaminant Details

1,2,3-trichloropropane (4)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.03 µg/L

Below Reporting Level

5/28/2015

10 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.03 µg/L

Below Reporting Level

2/11/2015

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.03 µg/L

Below Reporting Level

11/20/2014

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.03 µg/L

Below Reporting Level

8/7/2014

11 years ago

Minimum Reporting Level: 0.03 µg/L
Reference Level: ?

Contaminant Details

1,3-butadiene (4)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.1 µg/L

Below Reporting Level

5/28/2015

10 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.1 µg/L

Below Reporting Level

2/11/2015

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.1 µg/L

Below Reporting Level

11/20/2014

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.1 µg/L

Below Reporting Level

8/7/2014

11 years ago

Minimum Reporting Level: 0.1 µg/L
Reference Level: ?

Contaminant Details

1,4-dioxane (4)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

0.22 µg/L

⚠️ Exceeds Reporting Level of 0.07 µg/L by 0.15 µg/L

5/28/2015

10 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

0.072 µg/L

⚠️ Exceeds Reporting Level of 0.07 µg/L by 0.002 µg/L

2/11/2015

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.07 µg/L

Below Reporting Level

11/20/2014

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.07 µg/L

Below Reporting Level

8/7/2014

11 years ago

Minimum Reporting Level: 0.07 µg/L
Reference Level: ?

Contaminant Details

1-butanol (4)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<2 µg/L

Below Reporting Level

12/26/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<2 µg/L

Below Reporting Level

10/10/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<2 µg/L

Below Reporting Level

7/2/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<2 µg/L

Below Reporting Level

4/3/2019

7 years ago

Minimum Reporting Level: 2 µg/L
Reference Level: 700 µg/L

Contaminant Details

11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (1)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.005 µg/L

Below Reporting Level

2/19/2025

13 months ago

Minimum Reporting Level: 0.005 µg/L
Reference Level: ?

Contaminant Details

1H,1H,2H,2H-perfluorodecane sulfonic acid (1)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.005 µg/L

Below Reporting Level

2/19/2025

13 months ago

Minimum Reporting Level: 0.005 µg/L
Reference Level: ?

Contaminant Details

1H,1H,2H,2H-perfluorohexane sulfonic acid (1)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.003 µg/L

Below Reporting Level

2/19/2025

13 months ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

1H,1H,2H,2H-perfluorooctane sulfonic acid (1)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.005 µg/L

Below Reporting Level

2/19/2025

13 months ago

Minimum Reporting Level: 0.005 µg/L
Reference Level: ?

Contaminant Details

2,4-dinitrotoluene (4)

WTP

WTP ℹ️

<2 µg/L

Below Reporting Level

11/10/2003

22 years ago

WTP

WTP ℹ️

<2 µg/L

Below Reporting Level

8/12/2003

22 years ago

WTP

WTP ℹ️

<2 µg/L

Below Reporting Level

5/13/2003

22 years ago

WTP

WTP ℹ️

<2 µg/L

Below Reporting Level

2/11/2003

23 years ago

Minimum Reporting Level: 2 µg/L
Reference Level: ?

Contaminant Details

2,6-dinitrotoluene (4)

WTP

WTP ℹ️

<2 µg/L

Below Reporting Level

11/10/2003

22 years ago

WTP

WTP ℹ️

<2 µg/L

Below Reporting Level

8/12/2003

22 years ago

WTP

WTP ℹ️

<2 µg/L

Below Reporting Level

5/13/2003

22 years ago

WTP

WTP ℹ️

<2 µg/L

Below Reporting Level

2/11/2003

23 years ago

Minimum Reporting Level: 2 µg/L
Reference Level: ?

Contaminant Details

2-methoxyethanol (4)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.4 µg/L

Below Reporting Level

12/26/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.4 µg/L

Below Reporting Level

10/10/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.4 µg/L

Below Reporting Level

7/2/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.4 µg/L

Below Reporting Level

4/3/2019

7 years ago

Minimum Reporting Level: 0.4 µg/L
Reference Level: 21 µg/L

Contaminant Details

2-propen-1-ol (Allyl Alcohol) (4)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.5 µg/L

Below Reporting Level

12/26/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.5 µg/L

Below Reporting Level

10/10/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.5 µg/L

Below Reporting Level

7/2/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.5 µg/L

Below Reporting Level

4/3/2019

7 years ago

Minimum Reporting Level: 0.5 µg/L
Reference Level: 35 µg/L

Contaminant Details

4,4'-dichloro dichlorophenyl ethylene (DDE) (4)

WTP

WTP ℹ️

<0.8 µg/L

Below Reporting Level

11/10/2003

22 years ago

WTP

WTP ℹ️

<0.8 µg/L

Below Reporting Level

8/12/2003

22 years ago

WTP

WTP ℹ️

<0.8 µg/L

Below Reporting Level

5/13/2003

22 years ago

WTP

WTP ℹ️

<0.8 µg/L

Below Reporting Level

2/11/2003

23 years ago

Minimum Reporting Level: 0.8 µg/L
Reference Level: ?

Contaminant Details

4,8-dioxa-3H-perfluorononanoic acid (1)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.003 µg/L

Below Reporting Level

2/19/2025

13 months ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (1)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.002 µg/L

Below Reporting Level

2/19/2025

13 months ago

Minimum Reporting Level: 0.002 µg/L
Reference Level: ?

Contaminant Details

alpha-hexachlorocyclohexane (4)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.01 µg/L

Below Reporting Level

12/26/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.01 µg/L

Below Reporting Level

10/10/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.01 µg/L

Below Reporting Level

7/2/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.01 µg/L

Below Reporting Level

4/3/2019

7 years ago

Minimum Reporting Level: 0.01 µg/L
Reference Level: 0.006 µg/L

Contaminant Details

anatoxin-a (8)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.03 µg/L

Below Reporting Level

7/17/2018

7 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.03 µg/L

Below Reporting Level

7/2/2018

7 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.03 µg/L

Below Reporting Level

6/25/2018

7 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.03 µg/L

Below Reporting Level

6/4/2018

7 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.03 µg/L

Below Reporting Level

5/21/2018

7 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.03 µg/L

Below Reporting Level

5/7/2018

7 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.03 µg/L

Below Reporting Level

4/16/2018

7 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.03 µg/L

Below Reporting Level

4/5/2018

8 years ago

Minimum Reporting Level: 0.03 µg/L
Reference Level: ?

Contaminant Details

bromochloromethane (Halon 1011) (4)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.06 µg/L

Below Reporting Level

5/28/2015

10 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.06 µg/L

Below Reporting Level

2/11/2015

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.06 µg/L

Below Reporting Level

11/20/2014

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.06 µg/L

Below Reporting Level

8/7/2014

11 years ago

Minimum Reporting Level: 0.06 µg/L
Reference Level: ?

Contaminant Details

bromomethane (4)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.2 µg/L

Below Reporting Level

5/28/2015

10 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.2 µg/L

Below Reporting Level

2/11/2015

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.2 µg/L

Below Reporting Level

11/20/2014

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.2 µg/L

Below Reporting Level

8/7/2014

11 years ago

Minimum Reporting Level: 0.2 µg/L
Reference Level: ?

Contaminant Details

Butylated Hydroxyanisole (4)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.03 µg/L

Below Reporting Level

12/26/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.03 µg/L

Below Reporting Level

10/10/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.03 µg/L

Below Reporting Level

7/2/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.03 µg/L

Below Reporting Level

4/3/2019

7 years ago

Minimum Reporting Level: 0.03 µg/L
Reference Level: ?

Contaminant Details

chlorate (8)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

895 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 875 µg/L

5/28/2015

10 years ago

Max. Res. Time in Dist. System

Distribution System ℹ️

814 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 794 µg/L

5/28/2015

10 years ago

Max. Res. Time in Dist. System

Distribution System ℹ️

476 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 456 µg/L

2/11/2015

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

329 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 309 µg/L

2/11/2015

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

96.1 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 76.1 µg/L

11/20/2014

11 years ago

Max. Res. Time in Dist. System

Distribution System ℹ️

70 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 50 µg/L

11/20/2014

11 years ago

Max. Res. Time in Dist. System

Distribution System ℹ️

769 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 749 µg/L

8/7/2014

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

692 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 672 µg/L

8/7/2014

11 years ago

Minimum Reporting Level: 20 µg/L
Reference Level: ?

Contaminant Details

chlorodifluoromethane (HCFC-22) (4)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.08 µg/L

Below Reporting Level

5/28/2015

10 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.08 µg/L

Below Reporting Level

2/11/2015

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.08 µg/L

Below Reporting Level

11/20/2014

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.08 µg/L

Below Reporting Level

8/7/2014

11 years ago

Minimum Reporting Level: 0.08 µg/L
Reference Level: ?

Contaminant Details

chloromethane (4)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.2 µg/L

Below Reporting Level

5/28/2015

10 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.2 µg/L

Below Reporting Level

2/11/2015

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.2 µg/L

Below Reporting Level

11/20/2014

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.2 µg/L

Below Reporting Level

8/7/2014

11 years ago

Minimum Reporting Level: 0.2 µg/L
Reference Level: ?

Contaminant Details

chlorpyrifos (4)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.03 µg/L

Below Reporting Level

12/26/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.03 µg/L

Below Reporting Level

10/10/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.03 µg/L

Below Reporting Level

7/2/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.03 µg/L

Below Reporting Level

4/3/2019

7 years ago

Minimum Reporting Level: 0.03 µg/L
Reference Level: 2 µg/L

Contaminant Details

chromium (8)

Max. Res. Time in Dist. System

Distribution System ℹ️

0.21 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.01 µg/L

5/28/2015

10 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.2 µg/L

Below Reporting Level

5/28/2015

10 years ago

Max. Res. Time in Dist. System

Distribution System ℹ️

0.27 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.07 µg/L

2/11/2015

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.2 µg/L

Below Reporting Level

2/11/2015

11 years ago

Max. Res. Time in Dist. System

Distribution System ℹ️

<0.2 µg/L

Below Reporting Level

11/20/2014

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.2 µg/L

Below Reporting Level

11/20/2014

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

0.27 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.07 µg/L

8/7/2014

11 years ago

Max. Res. Time in Dist. System

Distribution System ℹ️

0.26 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.06 µg/L

8/7/2014

11 years ago

Minimum Reporting Level: 0.2 µg/L
Reference Level: ?

Contaminant Details

chromium-6 (8)

Max. Res. Time in Dist. System

Distribution System ℹ️

<0.03 µg/L

Below Reporting Level

5/28/2015

10 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.03 µg/L

Below Reporting Level

5/28/2015

10 years ago

Max. Res. Time in Dist. System

Distribution System ℹ️

<0.03 µg/L

Below Reporting Level

2/11/2015

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.03 µg/L

Below Reporting Level

2/11/2015

11 years ago

Max. Res. Time in Dist. System

Distribution System ℹ️

<0.03 µg/L

Below Reporting Level

11/20/2014

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.03 µg/L

Below Reporting Level

11/20/2014

11 years ago

Max. Res. Time in Dist. System

Distribution System ℹ️

<0.03 µg/L

Below Reporting Level

8/7/2014

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.03 µg/L

Below Reporting Level

8/7/2014

11 years ago

Minimum Reporting Level: 0.03 µg/L
Reference Level: ?

Contaminant Details

cobalt (8)

Max. Res. Time in Dist. System

Distribution System ℹ️

<1 µg/L

Below Reporting Level

5/28/2015

10 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<1 µg/L

Below Reporting Level

5/28/2015

10 years ago

Max. Res. Time in Dist. System

Distribution System ℹ️

<1 µg/L

Below Reporting Level

2/11/2015

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<1 µg/L

Below Reporting Level

2/11/2015

11 years ago

Max. Res. Time in Dist. System

Distribution System ℹ️

<1 µg/L

Below Reporting Level

11/20/2014

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<1 µg/L

Below Reporting Level

11/20/2014

11 years ago

Max. Res. Time in Dist. System

Distribution System ℹ️

<1 µg/L

Below Reporting Level

8/7/2014

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<1 µg/L

Below Reporting Level

8/7/2014

11 years ago

Minimum Reporting Level: 1 µg/L
Reference Level: ?

Contaminant Details

cylindrospermopsin (8)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.09 µg/L

Below Reporting Level

7/17/2018

7 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.09 µg/L

Below Reporting Level

7/2/2018

7 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.09 µg/L

Below Reporting Level

6/25/2018

7 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.09 µg/L

Below Reporting Level

6/4/2018

7 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.09 µg/L

Below Reporting Level

5/21/2018

7 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.09 µg/L

Below Reporting Level

5/7/2018

7 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.09 µg/L

Below Reporting Level

4/16/2018

7 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.09 µg/L

Below Reporting Level

4/5/2018

8 years ago

Minimum Reporting Level: 0.09 µg/L
Reference Level: 0.7 µg/L

Contaminant Details

dimethipin (4)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.2 µg/L

Below Reporting Level

12/26/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.2 µg/L

Below Reporting Level

10/10/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.2 µg/L

Below Reporting Level

7/2/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.2 µg/L

Below Reporting Level

4/3/2019

7 years ago

Minimum Reporting Level: 0.2 µg/L
Reference Level: 140 µg/L

Contaminant Details

dimethyl tetrachloroterephthalate (DCPA) mono/di-acid degradate (4)

WTP

WTP ℹ️

<1 µg/L

Below Reporting Level

11/10/2003

22 years ago

WTP

WTP ℹ️

<1 µg/L

Below Reporting Level

8/12/2003

22 years ago

WTP

WTP ℹ️

<1 µg/L

Below Reporting Level

5/13/2003

22 years ago

WTP

WTP ℹ️

<1 µg/L

Below Reporting Level

2/11/2003

23 years ago

Minimum Reporting Level: 1 µg/L
Reference Level: ?

Contaminant Details

ethoprop (4)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.03 µg/L

Below Reporting Level

12/26/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.03 µg/L

Below Reporting Level

10/10/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.03 µg/L

Below Reporting Level

7/2/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.03 µg/L

Below Reporting Level

4/3/2019

7 years ago

Minimum Reporting Level: 0.03 µg/L
Reference Level: 1.14 µg/L

Contaminant Details

Germanium (4)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.3 µg/L

Below Reporting Level

12/26/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.3 µg/L

Below Reporting Level

10/10/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

1 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 0.7 µg/L

7/2/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

0.6 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 0.3 µg/L

4/3/2019

7 years ago

Minimum Reporting Level: 0.3 µg/L
Reference Level: ?

Contaminant Details

HAA5 (five regulated haloacetic acids) (16)

1701 East Mile 5 North

Weslaco Water Plant ℹ️

11.303 µg/L

Meets Reporting Threshold

12/26/2019

6 years ago

106 Live Oak Dr

Weslaco Water Plant ℹ️

11.29 µg/L

Meets Reporting Threshold

12/26/2019

6 years ago

5210 South Midway Rd

Weslaco Water Plant ℹ️

11.033 µg/L

Meets Reporting Threshold

12/26/2019

6 years ago

2500 North Texas Blvd

Weslaco Water Plant ℹ️

9.785 µg/L

Meets Reporting Threshold

12/26/2019

6 years ago

1701 East Mile 5 North

Weslaco Water Plant ℹ️

15.75 µg/L

Meets Reporting Threshold

10/10/2019

6 years ago

5210 South Midway Rd

Weslaco Water Plant ℹ️

15.599 µg/L

Meets Reporting Threshold

10/10/2019

6 years ago

106 Live Oak Dr

Weslaco Water Plant ℹ️

14.965 µg/L

Meets Reporting Threshold

10/10/2019

6 years ago

2500 North Texas Blvd

Weslaco Water Plant ℹ️

13.963 µg/L

Meets Reporting Threshold

10/10/2019

6 years ago

5210 South Midway Rd

Weslaco Water Plant ℹ️

13.883 µg/L

Meets Reporting Threshold

7/2/2019

6 years ago

1701 East Mile 5 North

Weslaco Water Plant ℹ️

13.283 µg/L

Meets Reporting Threshold

7/2/2019

6 years ago

106 Live Oak Dr

Weslaco Water Plant ℹ️

12.808 µg/L

Meets Reporting Threshold

7/2/2019

6 years ago

2500 North Texas Blvd

Weslaco Water Plant ℹ️

12.215 µg/L

Meets Reporting Threshold

7/2/2019

6 years ago

106 Live Oak Dr

Weslaco Water Plant ℹ️

10.858 µg/L

Meets Reporting Threshold

4/16/2019

6 years ago

5210 South Midway Rd

Weslaco Water Plant ℹ️

10.963 µg/L

Meets Reporting Threshold

4/3/2019

7 years ago

1701 East Mile 5 North

Weslaco Water Plant ℹ️

10.497 µg/L

Meets Reporting Threshold

4/3/2019

7 years ago

2500 North Texas Blvd

Weslaco Water Plant ℹ️

8.89 µg/L

Meets Reporting Threshold

4/3/2019

7 years ago

Minimum Reporting Level: 0.5 µg/L
Reference Level: 60 µg/L

Contaminant Details

HAA6Br (six brominated haloacetic acids) (16)

1701 East Mile 5 North

Weslaco Water Plant ℹ️

16.23 µg/L

12/26/2019

6 years ago

106 Live Oak Dr

Weslaco Water Plant ℹ️

15.93 µg/L

12/26/2019

6 years ago

5210 South Midway Rd

Weslaco Water Plant ℹ️

15.65 µg/L

12/26/2019

6 years ago

2500 North Texas Blvd

Weslaco Water Plant ℹ️

13.591 µg/L

12/26/2019

6 years ago

1701 East Mile 5 North

Weslaco Water Plant ℹ️

21.037 µg/L

10/10/2019

6 years ago

5210 South Midway Rd

Weslaco Water Plant ℹ️

19.574 µg/L

10/10/2019

6 years ago

106 Live Oak Dr

Weslaco Water Plant ℹ️

19.507 µg/L

10/10/2019

6 years ago

2500 North Texas Blvd

Weslaco Water Plant ℹ️

18.073 µg/L

10/10/2019

6 years ago

1701 East Mile 5 North

Weslaco Water Plant ℹ️

15.428 µg/L

7/2/2019

6 years ago

106 Live Oak Dr

Weslaco Water Plant ℹ️

14.875 µg/L

7/2/2019

6 years ago

5210 South Midway Rd

Weslaco Water Plant ℹ️

14.292 µg/L

7/2/2019

6 years ago

2500 North Texas Blvd

Weslaco Water Plant ℹ️

13.619 µg/L

7/2/2019

6 years ago

106 Live Oak Dr

Weslaco Water Plant ℹ️

13.298 µg/L

4/16/2019

6 years ago

5210 South Midway Rd

Weslaco Water Plant ℹ️

12.798 µg/L

4/3/2019

7 years ago

1701 East Mile 5 North

Weslaco Water Plant ℹ️

12.151 µg/L

4/3/2019

7 years ago

2500 North Texas Blvd

Weslaco Water Plant ℹ️

10.27 µg/L

4/3/2019

7 years ago

Minimum Reporting Level: 0 µg/L
Reference Level: ?

Contaminant Details

HAA9 (nine haloacetic acids) (16)

106 Live Oak Dr

Weslaco Water Plant ℹ️

19.29 µg/L

12/26/2019

6 years ago

1701 East Mile 5 North

Weslaco Water Plant ℹ️

19.183 µg/L

12/26/2019

6 years ago

5210 South Midway Rd

Weslaco Water Plant ℹ️

18.943 µg/L

12/26/2019

6 years ago

2500 North Texas Blvd

Weslaco Water Plant ℹ️

16.675 µg/L

12/26/2019

6 years ago

1701 East Mile 5 North

Weslaco Water Plant ℹ️

26.977 µg/L

10/10/2019

6 years ago

106 Live Oak Dr

Weslaco Water Plant ℹ️

25.417 µg/L

10/10/2019

6 years ago

5210 South Midway Rd

Weslaco Water Plant ℹ️

23.914 µg/L

10/10/2019

6 years ago

2500 North Texas Blvd

Weslaco Water Plant ℹ️

23.773 µg/L

10/10/2019

6 years ago

1701 East Mile 5 North

Weslaco Water Plant ℹ️

20.778 µg/L

7/2/2019

6 years ago

106 Live Oak Dr

Weslaco Water Plant ℹ️

20.185 µg/L

7/2/2019

6 years ago

2500 North Texas Blvd

Weslaco Water Plant ℹ️

19.009 µg/L

7/2/2019

6 years ago

5210 South Midway Rd

Weslaco Water Plant ℹ️

17.475 µg/L

7/2/2019

6 years ago

106 Live Oak Dr

Weslaco Water Plant ℹ️

19.198 µg/L

4/16/2019

6 years ago

5210 South Midway Rd

Weslaco Water Plant ℹ️

18.468 µg/L

4/3/2019

7 years ago

1701 East Mile 5 North

Weslaco Water Plant ℹ️

17.771 µg/L

4/3/2019

7 years ago

2500 North Texas Blvd

Weslaco Water Plant ℹ️

15.14 µg/L

4/3/2019

7 years ago

Minimum Reporting Level: 0 µg/L
Reference Level: ?

Contaminant Details

hexafluoropropylene oxide dimer acid (GenX) (1)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.005 µg/L

Below Reporting Level

2/19/2025

13 months ago

Minimum Reporting Level: 0.005 µg/L
Reference Level: ?

Contaminant Details

lithium (2)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

29.8 µg/L

⚠️ Exceeds Reporting Level of 9 µg/L by 20.8 µg/L

5/6/2025

11 months ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

35.9 µg/L

⚠️ Exceeds Reporting Level of 9 µg/L by 26.9 µg/L

2/19/2025

13 months ago

Minimum Reporting Level: 9 µg/L
Reference Level: ?

Contaminant Details

Manganese (4)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

1.8 µg/L

Meets Reporting Threshold

12/26/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

1.8 µg/L

Meets Reporting Threshold

10/10/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

3.4 µg/L

Meets Reporting Threshold

7/2/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

3.1 µg/L

Meets Reporting Threshold

4/3/2019

7 years ago

Minimum Reporting Level: 0.4 µg/L
Reference Level: 300 µg/L

Contaminant Details

methyl-tertiary-butyl-ether (MTBE) (4)

WTP

WTP ℹ️

<5 µg/L

Below Reporting Level

11/10/2003

22 years ago

WTP

WTP ℹ️

<5 µg/L

Below Reporting Level

8/12/2003

22 years ago

WTP

WTP ℹ️

<5 µg/L

Below Reporting Level

5/13/2003

22 years ago

WTP

WTP ℹ️

<5 µg/L

Below Reporting Level

2/11/2003

23 years ago

Minimum Reporting Level: 5 µg/L
Reference Level: ?

Contaminant Details

molinate (4)

WTP

WTP ℹ️

<0.9 µg/L

Below Reporting Level

11/10/2003

22 years ago

WTP

WTP ℹ️

<0.9 µg/L

Below Reporting Level

8/12/2003

22 years ago

WTP

WTP ℹ️

<0.9 µg/L

Below Reporting Level

5/13/2003

22 years ago

WTP

WTP ℹ️

<0.9 µg/L

Below Reporting Level

2/11/2003

23 years ago

Minimum Reporting Level: 0.9 µg/L
Reference Level: ?

Contaminant Details

molybdenum (8)

Max. Res. Time in Dist. System

Distribution System ℹ️

6.6 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 5.6 µg/L

5/28/2015

10 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

6.2 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 5.2 µg/L

5/28/2015

10 years ago

Max. Res. Time in Dist. System

Distribution System ℹ️

7.8 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 6.8 µg/L

2/11/2015

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

7.8 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 6.8 µg/L

2/11/2015

11 years ago

Max. Res. Time in Dist. System

Distribution System ℹ️

6.6 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 5.6 µg/L

11/20/2014

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

6.4 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 5.4 µg/L

11/20/2014

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

7.1 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 6.1 µg/L

8/7/2014

11 years ago

Max. Res. Time in Dist. System

Distribution System ℹ️

7 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 6 µg/L

8/7/2014

11 years ago

Minimum Reporting Level: 1 µg/L
Reference Level: ?

Contaminant Details

N-ethyl perfluorooctanesulfonamidoacetic acid (2)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.005 µg/L

Below Reporting Level

5/6/2025

11 months ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.005 µg/L

Below Reporting Level

4/28/2025

11 months ago

Minimum Reporting Level: 0.005 µg/L
Reference Level: ?

Contaminant Details

N-methyl perfluorooctanesulfonamidoacetic acid (2)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.006 µg/L

Below Reporting Level

5/6/2025

11 months ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.006 µg/L

Below Reporting Level

4/28/2025

11 months ago

Minimum Reporting Level: 0.006 µg/L
Reference Level: ?

Contaminant Details

nitrobenzene (4)

WTP

WTP ℹ️

<10 µg/L

Below Reporting Level

11/10/2003

22 years ago

WTP

WTP ℹ️

<10 µg/L

Below Reporting Level

8/12/2003

22 years ago

WTP

WTP ℹ️

<10 µg/L

Below Reporting Level

5/13/2003

22 years ago

WTP

WTP ℹ️

<10 µg/L

Below Reporting Level

2/11/2003

23 years ago

Minimum Reporting Level: 10 µg/L
Reference Level: ?

Contaminant Details

nonafluoro-3,6-dioxaheptanoic acid (1)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.02 µg/L

Below Reporting Level

2/19/2025

13 months ago

Minimum Reporting Level: 0.02 µg/L
Reference Level: ?

Contaminant Details

o-toluidine (4)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.007 µg/L

Below Reporting Level

12/26/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.007 µg/L

Below Reporting Level

10/10/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.007 µg/L

Below Reporting Level

7/2/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.007 µg/L

Below Reporting Level

4/3/2019

7 years ago

Minimum Reporting Level: 0.007 µg/L
Reference Level: ?

Contaminant Details

oxyfluorfen (4)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.05 µg/L

Below Reporting Level

12/26/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.05 µg/L

Below Reporting Level

10/10/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.05 µg/L

Below Reporting Level

7/2/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.05 µg/L

Below Reporting Level

4/3/2019

7 years ago

Minimum Reporting Level: 0.05 µg/L
Reference Level: 200 µg/L

Contaminant Details

perchlorate (4)

WTP

WTP ℹ️

<4 µg/L

Below Reporting Level

11/10/2003

22 years ago

WTP

WTP ℹ️

<4 µg/L

Below Reporting Level

8/12/2003

22 years ago

WTP

WTP ℹ️

<4 µg/L

Below Reporting Level

5/13/2003

22 years ago

WTP

WTP ℹ️

<4 µg/L

Below Reporting Level

2/11/2003

23 years ago

Minimum Reporting Level: 4 µg/L
Reference Level: ?

Contaminant Details

perfluoro(2-ethoxyethane)sulfonic acid (1)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.003 µg/L

Below Reporting Level

2/19/2025

13 months ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

perfluoro-3-methoxypropanoic acid (1)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.004 µg/L

Below Reporting Level

2/19/2025

13 months ago

Minimum Reporting Level: 0.004 µg/L
Reference Level: ?

Contaminant Details

perfluoro-4-methoxybutanoic acid (1)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.003 µg/L

Below Reporting Level

2/19/2025

13 months ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

perfluorobutanesulfonic acid (5)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.003 µg/L

Below Reporting Level

2/19/2025

13 months ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.09 µg/L

Below Reporting Level

5/28/2015

10 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.09 µg/L

Below Reporting Level

2/11/2015

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.09 µg/L

Below Reporting Level

11/20/2014

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.09 µg/L

Below Reporting Level

8/7/2014

11 years ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

perfluorobutanoic acid (1)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.005 µg/L

Below Reporting Level

2/19/2025

13 months ago

Minimum Reporting Level: 0.005 µg/L
Reference Level: ?

Contaminant Details

perfluorodecanoic acid (1)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.003 µg/L

Below Reporting Level

2/19/2025

13 months ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

perfluorododecanoic acid (1)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.003 µg/L

Below Reporting Level

2/19/2025

13 months ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

perfluoroheptanesulfonic acid (1)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.003 µg/L

Below Reporting Level

2/19/2025

13 months ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

perfluoroheptanoic acid (5)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

0.0036 µg/L

⚠️ Exceeds Reporting Level of 0.003 µg/L by 0.0006 µg/L

2/19/2025

13 months ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.01 µg/L

Below Reporting Level

5/28/2015

10 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.01 µg/L

Below Reporting Level

2/11/2015

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.01 µg/L

Below Reporting Level

11/20/2014

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.01 µg/L

Below Reporting Level

8/7/2014

11 years ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

perfluorohexanesulfonic acid (5)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

0.0058 µg/L

⚠️ Exceeds Reporting Level of 0.003 µg/L by 0.0028 µg/L

2/19/2025

13 months ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.03 µg/L

Below Reporting Level

5/28/2015

10 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.03 µg/L

Below Reporting Level

2/11/2015

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.03 µg/L

Below Reporting Level

11/20/2014

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.03 µg/L

Below Reporting Level

8/7/2014

11 years ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

perfluorohexanoic acid (1)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

0.0086 µg/L

⚠️ Exceeds Reporting Level of 0.003 µg/L by 0.0056 µg/L

2/19/2025

13 months ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

perfluorononanoic acid (5)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.004 µg/L

Below Reporting Level

2/19/2025

13 months ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.02 µg/L

Below Reporting Level

5/28/2015

10 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.02 µg/L

Below Reporting Level

2/11/2015

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.02 µg/L

Below Reporting Level

11/20/2014

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.02 µg/L

Below Reporting Level

8/7/2014

11 years ago

Minimum Reporting Level: 0.004 µg/L
Reference Level: ?

Contaminant Details

perfluorooctanesulfonic acid (5)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

0.0059 µg/L

⚠️ Exceeds Reporting Level of 0.004 µg/L by 0.0019 µg/L

2/19/2025

13 months ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.04 µg/L

Below Reporting Level

5/28/2015

10 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.04 µg/L

Below Reporting Level

2/11/2015

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.04 µg/L

Below Reporting Level

11/20/2014

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.04 µg/L

Below Reporting Level

8/7/2014

11 years ago

Minimum Reporting Level: 0.004 µg/L
Reference Level: ?

Contaminant Details

perfluorooctanoic acid (5)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.004 µg/L

Below Reporting Level

2/19/2025

13 months ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.02 µg/L

Below Reporting Level

5/28/2015

10 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.02 µg/L

Below Reporting Level

2/11/2015

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.02 µg/L

Below Reporting Level

11/20/2014

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.02 µg/L

Below Reporting Level

8/7/2014

11 years ago

Minimum Reporting Level: 0.004 µg/L
Reference Level: ?

Contaminant Details

perfluoropentanesulfonic acid (1)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.004 µg/L

Below Reporting Level

2/19/2025

13 months ago

Minimum Reporting Level: 0.004 µg/L
Reference Level: ?

Contaminant Details

perfluoropentanoic acid (1)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

0.0084 µg/L

⚠️ Exceeds Reporting Level of 0.003 µg/L by 0.0054 µg/L

2/19/2025

13 months ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

perfluorotetradecanoic acid (2)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.008 µg/L

Below Reporting Level

5/6/2025

11 months ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.008 µg/L

Below Reporting Level

4/28/2025

11 months ago

Minimum Reporting Level: 0.008 µg/L
Reference Level: ?

Contaminant Details

perfluorotridecanoic acid (2)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.007 µg/L

Below Reporting Level

5/6/2025

11 months ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.007 µg/L

Below Reporting Level

4/28/2025

11 months ago

Minimum Reporting Level: 0.007 µg/L
Reference Level: ?

Contaminant Details

perfluoroundecanoic acid (1)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.002 µg/L

Below Reporting Level

2/19/2025

13 months ago

Minimum Reporting Level: 0.002 µg/L
Reference Level: ?

Contaminant Details

profenofos (4)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.3 µg/L

Below Reporting Level

12/26/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.3 µg/L

Below Reporting Level

10/10/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.3 µg/L

Below Reporting Level

7/2/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.3 µg/L

Below Reporting Level

4/3/2019

7 years ago

Minimum Reporting Level: 0.3 µg/L
Reference Level: 0.3 µg/L

Contaminant Details

quinoline (4)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.02 µg/L

Below Reporting Level

12/26/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.02 µg/L

Below Reporting Level

10/10/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.02 µg/L

Below Reporting Level

7/2/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.02 µg/L

Below Reporting Level

4/3/2019

7 years ago

Minimum Reporting Level: 0.02 µg/L
Reference Level: 0.01 µg/L

Contaminant Details

s-ethyl-dipropylthiocarbamate (EPTC) (4)

WTP

WTP ℹ️

<1 µg/L

Below Reporting Level

11/10/2003

22 years ago

WTP

WTP ℹ️

<1 µg/L

Below Reporting Level

8/12/2003

22 years ago

WTP

WTP ℹ️

<1 µg/L

Below Reporting Level

5/13/2003

22 years ago

WTP

WTP ℹ️

<1 µg/L

Below Reporting Level

2/11/2003

23 years ago

Minimum Reporting Level: 1 µg/L
Reference Level: ?

Contaminant Details

strontium (8)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

1850 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 1849.7 µg/L

5/28/2015

10 years ago

Max. Res. Time in Dist. System

Distribution System ℹ️

1840 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 1839.7 µg/L

5/28/2015

10 years ago

Max. Res. Time in Dist. System

Distribution System ℹ️

1840 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 1839.7 µg/L

2/11/2015

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

1760 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 1759.7 µg/L

2/11/2015

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

1560 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 1559.7 µg/L

11/20/2014

11 years ago

Max. Res. Time in Dist. System

Distribution System ℹ️

1530 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 1529.7 µg/L

11/20/2014

11 years ago

Max. Res. Time in Dist. System

Distribution System ℹ️

1450 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 1449.7 µg/L

8/7/2014

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

1440 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 1439.7 µg/L

8/7/2014

11 years ago

Minimum Reporting Level: 0.3 µg/L
Reference Level: ?

Contaminant Details

tebuconazole (4)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.2 µg/L

Below Reporting Level

12/26/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.2 µg/L

Below Reporting Level

10/10/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.2 µg/L

Below Reporting Level

7/2/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.2 µg/L

Below Reporting Level

4/3/2019

7 years ago

Minimum Reporting Level: 0.2 µg/L
Reference Level: 190 µg/L

Contaminant Details

terbacil (4)

WTP

WTP ℹ️

<2 µg/L

Below Reporting Level

11/10/2003

22 years ago

WTP

WTP ℹ️

<2 µg/L

Below Reporting Level

8/12/2003

22 years ago

WTP

WTP ℹ️

<2 µg/L

Below Reporting Level

5/13/2003

22 years ago

WTP

WTP ℹ️

<2 µg/L

Below Reporting Level

2/11/2003

23 years ago

Minimum Reporting Level: 2 µg/L
Reference Level: ?

Contaminant Details

total microcystins (8)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.3 µg/L

Below Reporting Level

7/17/2018

7 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.3 µg/L

Below Reporting Level

7/2/2018

7 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.3 µg/L

Below Reporting Level

6/25/2018

7 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.3 µg/L

Below Reporting Level

6/4/2018

7 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.3 µg/L

Below Reporting Level

5/21/2018

7 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.3 µg/L

Below Reporting Level

5/7/2018

7 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.3 µg/L

Below Reporting Level

4/16/2018

7 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.3 µg/L

Below Reporting Level

4/5/2018

8 years ago

Minimum Reporting Level: 0.3 µg/L
Reference Level: ?

Contaminant Details

Total Permethrin (4)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.04 µg/L

Below Reporting Level

12/26/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.04 µg/L

Below Reporting Level

10/10/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.04 µg/L

Below Reporting Level

7/2/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.04 µg/L

Below Reporting Level

4/3/2019

7 years ago

Minimum Reporting Level: 0.04 µg/L
Reference Level: 3.344 µg/L

Contaminant Details

tribufos (4)

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.07 µg/L

Below Reporting Level

12/26/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.07 µg/L

Below Reporting Level

10/10/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.07 µg/L

Below Reporting Level

7/2/2019

6 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

<0.07 µg/L

Below Reporting Level

4/3/2019

7 years ago

Minimum Reporting Level: 0.07 µg/L
Reference Level: 0.6 µg/L

Contaminant Details

vanadium (8)

Max. Res. Time in Dist. System

Distribution System ℹ️

3.8 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 3.6 µg/L

5/28/2015

10 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

3.6 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 3.4 µg/L

5/28/2015

10 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

2.6 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 2.4 µg/L

2/11/2015

11 years ago

Max. Res. Time in Dist. System

Distribution System ℹ️

2.5 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 2.3 µg/L

2/11/2015

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

3.9 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 3.7 µg/L

11/20/2014

11 years ago

Max. Res. Time in Dist. System

Distribution System ℹ️

3.8 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 3.6 µg/L

11/20/2014

11 years ago

WTP LAB FAUCET

Weslaco Water Plant ℹ️

5 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 4.8 µg/L

8/7/2014

11 years ago

Max. Res. Time in Dist. System

Distribution System ℹ️

4.8 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 4.6 µg/L

8/7/2014

11 years ago

Minimum Reporting Level: 0.2 µg/L
Reference Level: ?

Contaminant Details

Sampling Facilities

Weslaco Water Plant
Surface Water (SW)

WTP LAB FAUCETEntry Point to the Distribution System (EP)

Weslaco Water Plant
Surface Water (SW)

2500 North Texas BlvdDistribution System (DS)

Weslaco Water Plant
Surface Water (SW)

5210 South Midway RdDistribution System (DS)

Weslaco Water Plant
Surface Water (SW)

1701 East Mile 5 NorthDistribution System (DS)

Weslaco Water Plant
Surface Water (SW)

106 Live Oak DrDistribution System (DS)

Distribution System
Surface Water (SW)

Max. Res. Time in Dist. SystemMaximum Residence Time (MR)

WTP
Surface Water (SW)

WTPEntry Point to the Distribution System (EP)

FAQ

Is City of Weslaco tap water safe to drink?

When was City of Weslaco last tested for water contamination?

The latest water samples were taken on May 6th, 2025.