East Rio Hondo WSC (TX) Water Quality

East Rio Hondo WSC is a large public water system in EPA region 6 that provides tap water for the 78550, 78578, 78586 zip codes. It has 9 facilities where the water supply was tested for 85 chemical contaminants that impact tap water quality and human health.

The maximum reported level of HAA5 (five regulated haloacetic acids) was 96.9 µg/L. Some (2 of 16 or 13%) of the latest water samples showed levels of HAA5 (five regulated haloacetic acids) that were at or above unsafe concentration levels. The maximum reported level of Manganese was 7.6 µg/L. There were 2 contamintants found in the East Rio Hondo WSC water supply at levels that were above the minimum reporting level. 1 of the contaminants were above the reference level, which means they may pose a risk to human health.

Contaminants

1,1-dichloroethane (5)

Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
6/24/2014
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
12/19/2013
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from Harlingen Water Works ℹ️
0%
<0.03 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from North Cameron Regional WSC ℹ️
0%
<0.03 µg/L
Below Reporting Level
9/30/2013
11 years ago
Minimum Reporting Level: 0.03 µg/L
Reference Level: ?
Contaminant Details

1,2,3-trichloropropane (5)

Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
6/24/2014
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
12/19/2013
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from Harlingen Water Works ℹ️
0%
<0.03 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from North Cameron Regional WSC ℹ️
0%
<0.03 µg/L
Below Reporting Level
9/30/2013
11 years ago
Minimum Reporting Level: 0.03 µg/L
Reference Level: ?
Contaminant Details

1,3-butadiene (5)

Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.1 µg/L
Below Reporting Level
6/24/2014
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.1 µg/L
Below Reporting Level
12/19/2013
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.1 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from Harlingen Water Works ℹ️
0%
<0.1 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from North Cameron Regional WSC ℹ️
0%
<0.1 µg/L
Below Reporting Level
9/30/2013
11 years ago
Minimum Reporting Level: 0.1 µg/L
Reference Level: ?
Contaminant Details

1,4-dioxane (5)

Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.07 µg/L
Below Reporting Level
6/24/2014
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.07 µg/L
Below Reporting Level
12/19/2013
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.07 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from Harlingen Water Works ℹ️
0%
<0.07 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from North Cameron Regional WSC ℹ️
0%
<0.07 µg/L
Below Reporting Level
9/30/2013
11 years ago
Minimum Reporting Level: 0.07 µg/L
Reference Level: ?
Contaminant Details

1-butanol (10)

Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<2 µg/L
Below Reporting Level
9/24/2020
4 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<2 µg/L
Below Reporting Level
9/24/2020
4 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<2 µg/L
Below Reporting Level
7/8/2020
5 years ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<2 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<2 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<2 µg/L
Below Reporting Level
3/17/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<2 µg/L
Below Reporting Level
3/17/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<2 µg/L
Below Reporting Level
12/17/2019
5 years ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<2 µg/L
Below Reporting Level
12/17/2019
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<2 µg/L
Below Reporting Level
12/17/2019
5 years ago
Minimum Reporting Level: 2 µg/L
Reference Level: 700 µg/L
Contaminant Details

11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (10)

Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.005 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.005 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.005 µg/L
Below Reporting Level
1/30/2025
7 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.005 µg/L
Below Reporting Level
1/30/2025
7 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.005 µg/L
Below Reporting Level
1/8/2025
8 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.005 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.005 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.005 µg/L
Below Reporting Level
7/30/2024
13 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.005 µg/L
Below Reporting Level
7/17/2024
14 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.005 µg/L
Below Reporting Level
7/17/2024
14 months ago
Minimum Reporting Level: 0.005 µg/L
Reference Level: ?
Contaminant Details

17-alpha-ethynylestradiol (5)

Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.0009 µg/L
Below Reporting Level
6/24/2014
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.0009 µg/L
Below Reporting Level
12/19/2013
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.0009 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from Harlingen Water Works ℹ️
0%
<0.0009 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from North Cameron Regional WSC ℹ️
0%
<0.0009 µg/L
Below Reporting Level
9/30/2013
11 years ago
Minimum Reporting Level: 0.0009 µg/L
Reference Level: ?
Contaminant Details

17-beta-estradiol (5)

Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.0004 µg/L
Below Reporting Level
6/24/2014
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.0004 µg/L
Below Reporting Level
12/19/2013
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.0004 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from Harlingen Water Works ℹ️
0%
<0.0004 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from North Cameron Regional WSC ℹ️
0%
<0.0004 µg/L
Below Reporting Level
9/30/2013
11 years ago
Minimum Reporting Level: 0.0004 µg/L
Reference Level: ?
Contaminant Details

1H,1H,2H,2H-perfluorodecane sulfonic acid (10)

Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.005 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.005 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.005 µg/L
Below Reporting Level
1/30/2025
7 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.005 µg/L
Below Reporting Level
1/30/2025
7 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.005 µg/L
Below Reporting Level
1/8/2025
8 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.005 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.005 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.005 µg/L
Below Reporting Level
7/30/2024
13 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.005 µg/L
Below Reporting Level
7/17/2024
14 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.005 µg/L
Below Reporting Level
7/17/2024
14 months ago
Minimum Reporting Level: 0.005 µg/L
Reference Level: ?
Contaminant Details

1H,1H,2H,2H-perfluorohexane sulfonic acid (10)

Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.003 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.003 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.003 µg/L
Below Reporting Level
1/30/2025
7 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.003 µg/L
Below Reporting Level
1/30/2025
7 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.003 µg/L
Below Reporting Level
1/8/2025
8 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.003 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.003 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.003 µg/L
Below Reporting Level
7/30/2024
13 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.003 µg/L
Below Reporting Level
7/17/2024
14 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.003 µg/L
Below Reporting Level
7/17/2024
14 months ago
Minimum Reporting Level: 0.003 µg/L
Reference Level: ?
Contaminant Details

1H,1H,2H,2H-perfluorooctane sulfonic acid (10)

Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.005 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.005 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.005 µg/L
Below Reporting Level
1/30/2025
7 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.005 µg/L
Below Reporting Level
1/30/2025
7 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.005 µg/L
Below Reporting Level
1/8/2025
8 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.005 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.005 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.005 µg/L
Below Reporting Level
7/30/2024
13 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.005 µg/L
Below Reporting Level
7/17/2024
14 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.005 µg/L
Below Reporting Level
7/17/2024
14 months ago
Minimum Reporting Level: 0.005 µg/L
Reference Level: ?
Contaminant Details

2,4-dinitrotoluene (4)

WTP
WTP ℹ️
0%
<2 µg/L
Below Reporting Level
10/22/2001
23 years ago
WTP
WTP ℹ️
0%
<2 µg/L
Below Reporting Level
7/23/2001
24 years ago
WTP
WTP ℹ️
0%
<2 µg/L
Below Reporting Level
4/23/2001
24 years ago
WTP
WTP ℹ️
0%
<2 µg/L
Below Reporting Level
1/15/2001
24 years ago
Minimum Reporting Level: 2 µg/L
Reference Level: ?
Contaminant Details

2,6-dinitrotoluene (4)

WTP
WTP ℹ️
0%
<2 µg/L
Below Reporting Level
10/22/2001
23 years ago
WTP
WTP ℹ️
0%
<2 µg/L
Below Reporting Level
7/23/2001
24 years ago
WTP
WTP ℹ️
0%
<2 µg/L
Below Reporting Level
4/23/2001
24 years ago
WTP
WTP ℹ️
0%
<2 µg/L
Below Reporting Level
1/15/2001
24 years ago
Minimum Reporting Level: 2 µg/L
Reference Level: ?
Contaminant Details

2-methoxyethanol (10)

Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.4 µg/L
Below Reporting Level
9/24/2020
4 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.4 µg/L
Below Reporting Level
9/24/2020
4 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.4 µg/L
Below Reporting Level
7/8/2020
5 years ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.4 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.4 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.4 µg/L
Below Reporting Level
3/17/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.4 µg/L
Below Reporting Level
3/17/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.4 µg/L
Below Reporting Level
12/17/2019
5 years ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.4 µg/L
Below Reporting Level
12/17/2019
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.4 µg/L
Below Reporting Level
12/17/2019
5 years ago
Minimum Reporting Level: 0.4 µg/L
Reference Level: 21 µg/L
Contaminant Details

2-propen-1-ol (Allyl Alcohol) (10)

Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.5 µg/L
Below Reporting Level
9/24/2020
4 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.5 µg/L
Below Reporting Level
9/24/2020
4 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.5 µg/L
Below Reporting Level
7/8/2020
5 years ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.5 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.5 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.5 µg/L
Below Reporting Level
3/17/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.5 µg/L
Below Reporting Level
3/17/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.5 µg/L
Below Reporting Level
12/17/2019
5 years ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.5 µg/L
Below Reporting Level
12/17/2019
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.5 µg/L
Below Reporting Level
12/17/2019
5 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%
<0.8 µg/L
Below Reporting Level
10/22/2001
23 years ago
WTP
WTP ℹ️
0%
<0.8 µg/L
Below Reporting Level
7/23/2001
24 years ago
WTP
WTP ℹ️
0%
<0.8 µg/L
Below Reporting Level
4/23/2001
24 years ago
WTP
WTP ℹ️
0%
<0.8 µg/L
Below Reporting Level
1/15/2001
24 years ago
Minimum Reporting Level: 0.8 µg/L
Reference Level: ?
Contaminant Details

4,8-dioxa-3H-perfluorononanoic acid (10)

Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.003 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.003 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.003 µg/L
Below Reporting Level
1/30/2025
7 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.003 µg/L
Below Reporting Level
1/30/2025
7 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.003 µg/L
Below Reporting Level
1/8/2025
8 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.003 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.003 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.003 µg/L
Below Reporting Level
7/30/2024
13 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.003 µg/L
Below Reporting Level
7/17/2024
14 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.003 µg/L
Below Reporting Level
7/17/2024
14 months ago
Minimum Reporting Level: 0.003 µg/L
Reference Level: ?
Contaminant Details

4-androstene-3,17-dione (5)

Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.0003 µg/L
Below Reporting Level
6/24/2014
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.0003 µg/L
Below Reporting Level
12/19/2013
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.0003 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from Harlingen Water Works ℹ️
0%
<0.0003 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from North Cameron Regional WSC ℹ️
0%
<0.0003 µg/L
Below Reporting Level
9/30/2013
11 years ago
Minimum Reporting Level: 0.0003 µg/L
Reference Level: ?
Contaminant Details

9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (10)

Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.002 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.002 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.002 µg/L
Below Reporting Level
1/30/2025
7 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.002 µg/L
Below Reporting Level
1/30/2025
7 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.002 µg/L
Below Reporting Level
1/8/2025
8 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.002 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.002 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.002 µg/L
Below Reporting Level
7/30/2024
13 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.002 µg/L
Below Reporting Level
7/17/2024
14 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.002 µg/L
Below Reporting Level
7/17/2024
14 months ago
Minimum Reporting Level: 0.002 µg/L
Reference Level: ?
Contaminant Details

alpha-hexachlorocyclohexane (10)

Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.01 µg/L
Below Reporting Level
12/16/2020
4 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.01 µg/L
Below Reporting Level
9/24/2020
4 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.01 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.01 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.01 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.01 µg/L
Below Reporting Level
3/17/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.01 µg/L
Below Reporting Level
3/17/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.01 µg/L
Below Reporting Level
12/17/2019
5 years ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.01 µg/L
Below Reporting Level
12/17/2019
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.01 µg/L
Below Reporting Level
12/17/2019
5 years ago
Minimum Reporting Level: 0.01 µg/L
Reference Level: 0.006 µg/L
Contaminant Details

anatoxin-a (16)

Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.03 µg/L
Below Reporting Level
8/18/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
8/18/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.03 µg/L
Below Reporting Level
8/6/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
8/6/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.03 µg/L
Below Reporting Level
7/21/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
7/21/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.03 µg/L
Below Reporting Level
7/8/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
7/8/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.03 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
120%
0.036 µg/L
⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.006 µg/L
6/4/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
6/4/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
313.3%
0.094 µg/L
⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.064 µg/L
5/21/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.03 µg/L
Below Reporting Level
5/21/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.03 µg/L
Below Reporting Level
5/6/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
5/6/2020
5 years ago
Minimum Reporting Level: 0.03 µg/L
Reference Level: ?
Contaminant Details

bromochloromethane (Halon 1011) (5)

Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.06 µg/L
Below Reporting Level
6/24/2014
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.06 µg/L
Below Reporting Level
12/19/2013
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.06 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from Harlingen Water Works ℹ️
0%
<0.06 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from North Cameron Regional WSC ℹ️
0%
<0.06 µg/L
Below Reporting Level
9/30/2013
11 years ago
Minimum Reporting Level: 0.06 µg/L
Reference Level: ?
Contaminant Details

bromomethane (5)

Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.2 µg/L
Below Reporting Level
6/24/2014
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.2 µg/L
Below Reporting Level
12/19/2013
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.2 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from Harlingen Water Works ℹ️
0%
<0.2 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from North Cameron Regional WSC ℹ️
0%
<0.2 µg/L
Below Reporting Level
9/30/2013
11 years ago
Minimum Reporting Level: 0.2 µg/L
Reference Level: ?
Contaminant Details

Butylated Hydroxyanisole (10)

Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.03 µg/L
Below Reporting Level
9/24/2020
4 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
9/24/2020
4 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.03 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.03 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.03 µg/L
Below Reporting Level
3/17/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
3/17/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.03 µg/L
Below Reporting Level
12/17/2019
5 years ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.03 µg/L
Below Reporting Level
12/17/2019
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
12/17/2019
5 years ago
Minimum Reporting Level: 0.03 µg/L
Reference Level: ?
Contaminant Details

chlorate (9)

DSMRT for Simpson WTP
Distribution System - SW ℹ️
1735%
347 µg/L
⚠️ Exceeds Reporting Level of 20 µg/L by 327 µg/L
6/24/2014
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
1625%
325 µg/L
⚠️ Exceeds Reporting Level of 20 µg/L by 305 µg/L
6/24/2014
11 years ago
DSMRT for Simpson WTP
Distribution System - SW ℹ️
1590%
318 µg/L
⚠️ Exceeds Reporting Level of 20 µg/L by 298 µg/L
12/19/2013
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
1440%
288 µg/L
⚠️ Exceeds Reporting Level of 20 µg/L by 268 µg/L
12/19/2013
11 years ago
DSMRT for Meter from Harlington
Distribution System - SW ℹ️
1325%
265 µg/L
⚠️ Exceeds Reporting Level of 20 µg/L by 245 µg/L
9/30/2013
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
1290%
258 µg/L
⚠️ Exceeds Reporting Level of 20 µg/L by 238 µg/L
9/30/2013
11 years ago
DSMRT for Simpson WTP
Distribution System - SW ℹ️
1285%
257 µg/L
⚠️ Exceeds Reporting Level of 20 µg/L by 237 µg/L
9/30/2013
11 years ago
Sample Tap
Meter from Harlingen Water Works ℹ️
0%
<20 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from North Cameron Regional WSC ℹ️
0%
<20 µg/L
Below Reporting Level
9/30/2013
11 years ago
Minimum Reporting Level: 20 µg/L
Reference Level: ?
Contaminant Details

chlorodifluoromethane (HCFC-22) (5)

Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.08 µg/L
Below Reporting Level
6/24/2014
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.08 µg/L
Below Reporting Level
12/19/2013
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.08 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from Harlingen Water Works ℹ️
0%
<0.08 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from North Cameron Regional WSC ℹ️
0%
<0.08 µg/L
Below Reporting Level
9/30/2013
11 years ago
Minimum Reporting Level: 0.08 µg/L
Reference Level: ?
Contaminant Details

chloromethane (5)

Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.2 µg/L
Below Reporting Level
6/24/2014
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.2 µg/L
Below Reporting Level
12/19/2013
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.2 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from Harlingen Water Works ℹ️
0%
<0.2 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from North Cameron Regional WSC ℹ️
0%
<0.2 µg/L
Below Reporting Level
9/30/2013
11 years ago
Minimum Reporting Level: 0.2 µg/L
Reference Level: ?
Contaminant Details

chlorpyrifos (10)

Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
12/16/2020
4 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.03 µg/L
Below Reporting Level
9/24/2020
4 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.03 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.03 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.03 µg/L
Below Reporting Level
3/17/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
3/17/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.03 µg/L
Below Reporting Level
12/17/2019
5 years ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.03 µg/L
Below Reporting Level
12/17/2019
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
12/17/2019
5 years ago
Minimum Reporting Level: 0.03 µg/L
Reference Level: 2 µg/L
Contaminant Details

chromium (9)

DSMRT for Simpson WTP
Distribution System - SW ℹ️
0%
<0.2 µg/L
Below Reporting Level
9/9/2014
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.2 µg/L
Below Reporting Level
9/9/2014
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
103.5%
0.207 µg/L
⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.007 µg/L
12/19/2013
11 years ago
DSMRT for Simpson WTP
Distribution System - SW ℹ️
0%
<0.2 µg/L
Below Reporting Level
12/19/2013
11 years ago
DSMRT for Simpson WTP
Distribution System - SW ℹ️
0%
<0.2 µg/L
Below Reporting Level
9/30/2013
11 years ago
DSMRT for Meter from Harlington
Distribution System - SW ℹ️
0%
<0.2 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.2 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from Harlingen Water Works ℹ️
0%
<0.2 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from North Cameron Regional WSC ℹ️
0%
<0.2 µg/L
Below Reporting Level
9/30/2013
11 years ago
Minimum Reporting Level: 0.2 µg/L
Reference Level: ?
Contaminant Details

chromium-6 (13)

DSMRT for Simpson WTP
Distribution System - SW ℹ️
0%
<0.03 µg/L
Below Reporting Level
6/24/2014
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
6/24/2014
11 years ago
DSMRT for Simpson WTP
Distribution System - SW ℹ️
0%
<0.03 µg/L
Below Reporting Level
3/25/2014
11 years ago
DSMRT for Meter from Harlington
Distribution System - SW ℹ️
0%
<0.03 µg/L
Below Reporting Level
3/25/2014
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
3/25/2014
11 years ago
Sample Tap
Meter from North Cameron Regional WSC ℹ️
0%
<0.03 µg/L
Below Reporting Level
3/25/2014
11 years ago
DSMRT for Simpson WTP
Distribution System - SW ℹ️
0%
<0.03 µg/L
Below Reporting Level
12/19/2013
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
12/19/2013
11 years ago
Sample Tap
Meter from Harlingen Water Works ℹ️
216.7%
0.065 µg/L
⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.035 µg/L
9/30/2013
11 years ago
DSMRT for Simpson WTP
Distribution System - SW ℹ️
0%
<0.03 µg/L
Below Reporting Level
9/30/2013
11 years ago
DSMRT for Meter from Harlington
Distribution System - SW ℹ️
0%
<0.03 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from North Cameron Regional WSC ℹ️
0%
<0.03 µg/L
Below Reporting Level
9/30/2013
11 years ago
Minimum Reporting Level: 0.03 µg/L
Reference Level: ?
Contaminant Details

cobalt (9)

DSMRT for Simpson WTP
Distribution System - SW ℹ️
0%
<1 µg/L
Below Reporting Level
9/9/2014
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<1 µg/L
Below Reporting Level
9/9/2014
11 years ago
DSMRT for Simpson WTP
Distribution System - SW ℹ️
0%
<1 µg/L
Below Reporting Level
12/19/2013
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<1 µg/L
Below Reporting Level
12/19/2013
11 years ago
DSMRT for Simpson WTP
Distribution System - SW ℹ️
0%
<1 µg/L
Below Reporting Level
9/30/2013
11 years ago
DSMRT for Meter from Harlington
Distribution System - SW ℹ️
0%
<1 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<1 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from Harlingen Water Works ℹ️
0%
<1 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from North Cameron Regional WSC ℹ️
0%
<1 µg/L
Below Reporting Level
9/30/2013
11 years ago
Minimum Reporting Level: 1 µg/L
Reference Level: ?
Contaminant Details

cylindrospermopsin (16)

Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.09 µg/L
Below Reporting Level
8/18/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.09 µg/L
Below Reporting Level
8/18/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.09 µg/L
Below Reporting Level
8/6/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.09 µg/L
Below Reporting Level
8/6/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.09 µg/L
Below Reporting Level
7/21/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.09 µg/L
Below Reporting Level
7/21/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.09 µg/L
Below Reporting Level
7/8/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.09 µg/L
Below Reporting Level
7/8/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.09 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.09 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.09 µg/L
Below Reporting Level
6/4/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.09 µg/L
Below Reporting Level
6/4/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.09 µg/L
Below Reporting Level
5/21/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.09 µg/L
Below Reporting Level
5/21/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.09 µg/L
Below Reporting Level
5/6/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.09 µg/L
Below Reporting Level
5/6/2020
5 years ago
Minimum Reporting Level: 0.09 µg/L
Reference Level: 0.7 µg/L
Contaminant Details

dimethipin (10)

Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.2 µg/L
Below Reporting Level
12/16/2020
4 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.2 µg/L
Below Reporting Level
9/24/2020
4 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.2 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.2 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.2 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.2 µg/L
Below Reporting Level
3/17/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.2 µg/L
Below Reporting Level
3/17/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.2 µg/L
Below Reporting Level
12/17/2019
5 years ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.2 µg/L
Below Reporting Level
12/17/2019
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.2 µg/L
Below Reporting Level
12/17/2019
5 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
0%
<1 µg/L
Below Reporting Level
10/22/2001
23 years ago
WTP
WTP ℹ️
0%
<1 µg/L
Below Reporting Level
7/23/2001
24 years ago
WTP
WTP ℹ️
0%
<1 µg/L
Below Reporting Level
4/23/2001
24 years ago
WTP
WTP ℹ️
0%
<1 µg/L
Below Reporting Level
1/15/2001
24 years ago
Minimum Reporting Level: 1 µg/L
Reference Level: ?
Contaminant Details

equilin (5)

Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.004 µg/L
Below Reporting Level
6/24/2014
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.004 µg/L
Below Reporting Level
12/19/2013
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.004 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from Harlingen Water Works ℹ️
0%
<0.004 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from North Cameron Regional WSC ℹ️
0%
<0.004 µg/L
Below Reporting Level
9/30/2013
11 years ago
Minimum Reporting Level: 0.004 µg/L
Reference Level: ?
Contaminant Details

estriol (5)

Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.0008 µg/L
Below Reporting Level
6/24/2014
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.0008 µg/L
Below Reporting Level
12/19/2013
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.0008 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from Harlingen Water Works ℹ️
0%
<0.0008 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from North Cameron Regional WSC ℹ️
0%
<0.0008 µg/L
Below Reporting Level
9/30/2013
11 years ago
Minimum Reporting Level: 0.0008 µg/L
Reference Level: ?
Contaminant Details

estrone (5)

Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.002 µg/L
Below Reporting Level
6/24/2014
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.002 µg/L
Below Reporting Level
12/19/2013
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.002 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from Harlingen Water Works ℹ️
0%
<0.002 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from North Cameron Regional WSC ℹ️
0%
<0.002 µg/L
Below Reporting Level
9/30/2013
11 years ago
Minimum Reporting Level: 0.002 µg/L
Reference Level: ?
Contaminant Details

ethoprop (10)

Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
12/16/2020
4 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.03 µg/L
Below Reporting Level
9/24/2020
4 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.03 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.03 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.03 µg/L
Below Reporting Level
3/17/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
3/17/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.03 µg/L
Below Reporting Level
12/17/2019
5 years ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.03 µg/L
Below Reporting Level
12/17/2019
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
12/17/2019
5 years ago
Minimum Reporting Level: 0.03 µg/L
Reference Level: 1.14 µg/L
Contaminant Details

Germanium (10)

Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.3 µg/L
Below Reporting Level
9/24/2020
4 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.3 µg/L
Below Reporting Level
9/24/2020
4 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
260%
0.78 µg/L
⚠️ Exceeds Reporting Level of 0.3 µg/L by 0.48 µg/L
6/18/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
233.3%
0.7 µg/L
⚠️ Exceeds Reporting Level of 0.3 µg/L by 0.4 µg/L
6/18/2020
5 years ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.3 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.3 µg/L
Below Reporting Level
3/17/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.3 µg/L
Below Reporting Level
3/17/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.3 µg/L
Below Reporting Level
12/17/2019
5 years ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.3 µg/L
Below Reporting Level
12/17/2019
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.3 µg/L
Below Reporting Level
12/17/2019
5 years ago
Minimum Reporting Level: 0.3 µg/L
Reference Level: ?
Contaminant Details

HAA5 (five regulated haloacetic acids) (16)

31400 Share 28 Road
Distribution System ℹ️
29.8%
17.9 µg/L
Meets Reporting Threshold
12/16/2020
4 years ago
Gen. Brandt Highway
Distribution System ℹ️
28.7%
17.2 µg/L
Meets Reporting Threshold
12/16/2020
4 years ago
Fernando East Hydrant
Distribution System ℹ️
27.8%
16.7 µg/L
Meets Reporting Threshold
12/16/2020
4 years ago
FM Road 1599 Hydrant
Distribution System ℹ️
0.6%
0.33 µg/L
Meets Reporting Threshold
9/24/2020
4 years ago
31400 Share 28 Road
Distribution System ℹ️
161.5%
96.9 µg/L
☠️ Exceeds Reference Level by 36.9 µg/L
8/6/2020
5 years ago
Fernando East Hydrant
Distribution System ℹ️
157.3%
94.4 µg/L
☠️ Exceeds Reference Level by 34.4 µg/L
8/6/2020
5 years ago
Gen. Brandt Highway
Distribution System ℹ️
17.1%
10.23 µg/L
Meets Reporting Threshold
6/18/2020
5 years ago
FM Road 1599 Hydrant
Distribution System ℹ️
0%
0 µg/L
Meets Reporting Threshold
6/18/2020
5 years ago
31400 Share 28 Road
Distribution System ℹ️
21%
12.57 µg/L
Meets Reporting Threshold
3/17/2020
5 years ago
Fernando East Hydrant
Distribution System ℹ️
20%
12 µg/L
Meets Reporting Threshold
3/17/2020
5 years ago
Gen. Brandt Highway
Distribution System ℹ️
16.4%
9.85 µg/L
Meets Reporting Threshold
3/17/2020
5 years ago
FM Road 1599 Hydrant
Distribution System ℹ️
0%
0 µg/L
Meets Reporting Threshold
3/17/2020
5 years ago
Gen. Brandt Highway
Distribution System ℹ️
22.8%
13.67 µg/L
Meets Reporting Threshold
12/17/2019
5 years ago
31400 Share 28 Road
Distribution System ℹ️
18.9%
11.36 µg/L
Meets Reporting Threshold
12/17/2019
5 years ago
Fernando East Hydrant
Distribution System ℹ️
14.5%
8.67 µg/L
Meets Reporting Threshold
12/17/2019
5 years ago
FM Road 1599 Hydrant
Distribution System ℹ️
0%
0 µg/L
Meets Reporting Threshold
12/17/2019
5 years ago
Minimum Reporting Level: 0.5 µg/L
Reference Level: 60 µg/L
Contaminant Details

HAA6Br (six brominated haloacetic acids) (16)

31400 Share 28 Road
Distribution System ℹ️
0%
22.3 µg/L
12/16/2020
4 years ago
Gen. Brandt Highway
Distribution System ℹ️
0%
22 µg/L
12/16/2020
4 years ago
Fernando East Hydrant
Distribution System ℹ️
0%
21.8 µg/L
12/16/2020
4 years ago
FM Road 1599 Hydrant
Distribution System ℹ️
0%
0 µg/L
9/24/2020
4 years ago
Fernando East Hydrant
Distribution System ℹ️
0%
125.2 µg/L
8/6/2020
5 years ago
31400 Share 28 Road
Distribution System ℹ️
0%
123.1 µg/L
8/6/2020
5 years ago
Gen. Brandt Highway
Distribution System ℹ️
0%
13.95 µg/L
6/18/2020
5 years ago
FM Road 1599 Hydrant
Distribution System ℹ️
0%
0 µg/L
6/18/2020
5 years ago
Fernando East Hydrant
Distribution System ℹ️
0%
16.25 µg/L
3/17/2020
5 years ago
31400 Share 28 Road
Distribution System ℹ️
0%
16.11 µg/L
3/17/2020
5 years ago
Gen. Brandt Highway
Distribution System ℹ️
0%
13.48 µg/L
3/17/2020
5 years ago
FM Road 1599 Hydrant
Distribution System ℹ️
0%
0 µg/L
3/17/2020
5 years ago
Gen. Brandt Highway
Distribution System ℹ️
0%
20.2 µg/L
12/17/2019
5 years ago
31400 Share 28 Road
Distribution System ℹ️
0%
16.36 µg/L
12/17/2019
5 years ago
Fernando East Hydrant
Distribution System ℹ️
0%
14.13 µg/L
12/17/2019
5 years ago
FM Road 1599 Hydrant
Distribution System ℹ️
0%
0 µg/L
12/17/2019
5 years ago
Minimum Reporting Level: 0 µg/L
Reference Level: ?
Contaminant Details

HAA9 (nine haloacetic acids) (16)

Fernando East Hydrant
Distribution System ℹ️
0%
28.9 µg/L
12/16/2020
4 years ago
31400 Share 28 Road
Distribution System ℹ️
0%
28.8 µg/L
12/16/2020
4 years ago
Gen. Brandt Highway
Distribution System ℹ️
0%
28.2 µg/L
12/16/2020
4 years ago
FM Road 1599 Hydrant
Distribution System ℹ️
0%
0.33 µg/L
9/24/2020
4 years ago
Fernando East Hydrant
Distribution System ℹ️
0%
189.6 µg/L
8/6/2020
5 years ago
31400 Share 28 Road
Distribution System ℹ️
0%
185.6 µg/L
8/6/2020
5 years ago
Gen. Brandt Highway
Distribution System ℹ️
0%
16.61 µg/L
6/18/2020
5 years ago
FM Road 1599 Hydrant
Distribution System ℹ️
0%
0 µg/L
6/18/2020
5 years ago
31400 Share 28 Road
Distribution System ℹ️
0%
21.88 µg/L
3/17/2020
5 years ago
Fernando East Hydrant
Distribution System ℹ️
0%
20.75 µg/L
3/17/2020
5 years ago
Gen. Brandt Highway
Distribution System ℹ️
0%
17.03 µg/L
3/17/2020
5 years ago
FM Road 1599 Hydrant
Distribution System ℹ️
0%
0 µg/L
3/17/2020
5 years ago
Gen. Brandt Highway
Distribution System ℹ️
0%
25.47 µg/L
12/17/2019
5 years ago
31400 Share 28 Road
Distribution System ℹ️
0%
21.32 µg/L
12/17/2019
5 years ago
Fernando East Hydrant
Distribution System ℹ️
0%
17.49 µg/L
12/17/2019
5 years ago
FM Road 1599 Hydrant
Distribution System ℹ️
0%
0 µg/L
12/17/2019
5 years ago
Minimum Reporting Level: 0 µg/L
Reference Level: ?
Contaminant Details

hexafluoropropylene oxide dimer acid (GenX) (10)

Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.005 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.005 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.005 µg/L
Below Reporting Level
1/30/2025
7 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.005 µg/L
Below Reporting Level
1/30/2025
7 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.005 µg/L
Below Reporting Level
1/8/2025
8 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.005 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.005 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.005 µg/L
Below Reporting Level
7/30/2024
13 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.005 µg/L
Below Reporting Level
7/17/2024
14 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.005 µg/L
Below Reporting Level
7/17/2024
14 months ago
Minimum Reporting Level: 0.005 µg/L
Reference Level: ?
Contaminant Details

lithium (10)

Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
428.9%
38.6 µg/L
⚠️ Exceeds Reporting Level of 9 µg/L by 29.6 µg/L
4/9/2025
5 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
157.8%
14.2 µg/L
⚠️ Exceeds Reporting Level of 9 µg/L by 5.2 µg/L
4/9/2025
5 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
530%
47.7 µg/L
⚠️ Exceeds Reporting Level of 9 µg/L by 38.7 µg/L
1/8/2025
8 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
456.7%
41.1 µg/L
⚠️ Exceeds Reporting Level of 9 µg/L by 32.1 µg/L
1/8/2025
8 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
404.4%
36.4 µg/L
⚠️ Exceeds Reporting Level of 9 µg/L by 27.4 µg/L
1/8/2025
8 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
507.8%
45.7 µg/L
⚠️ Exceeds Reporting Level of 9 µg/L by 36.7 µg/L
10/10/2024
11 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
388.9%
35 µg/L
⚠️ Exceeds Reporting Level of 9 µg/L by 26 µg/L
10/10/2024
11 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
406.7%
36.6 µg/L
⚠️ Exceeds Reporting Level of 9 µg/L by 27.6 µg/L
7/30/2024
13 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
627.8%
56.5 µg/L
⚠️ Exceeds Reporting Level of 9 µg/L by 47.5 µg/L
7/17/2024
14 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
492.2%
44.3 µg/L
⚠️ Exceeds Reporting Level of 9 µg/L by 35.3 µg/L
7/17/2024
14 months ago
Minimum Reporting Level: 9 µg/L
Reference Level: ?
Contaminant Details

Manganese (10)

Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
1.9%
5.6 µg/L
Meets Reporting Threshold
9/24/2020
4 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0.5%
1.5 µg/L
Meets Reporting Threshold
9/24/2020
4 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
2.5%
7.6 µg/L
Meets Reporting Threshold
6/18/2020
5 years ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
1.7%
5.2 µg/L
Meets Reporting Threshold
6/18/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
1.2%
3.5 µg/L
Meets Reporting Threshold
6/18/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
1.2%
3.7 µg/L
Meets Reporting Threshold
3/17/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0.3%
1 µg/L
Meets Reporting Threshold
3/17/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
1.7%
5 µg/L
Meets Reporting Threshold
12/17/2019
5 years ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
1.4%
4.1 µg/L
Meets Reporting Threshold
12/17/2019
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0.2%
0.6 µg/L
Meets Reporting Threshold
12/17/2019
5 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
0%
<5 µg/L
Below Reporting Level
10/22/2001
23 years ago
WTP
WTP ℹ️
0%
<5 µg/L
Below Reporting Level
7/23/2001
24 years ago
WTP
WTP ℹ️
0%
<5 µg/L
Below Reporting Level
4/23/2001
24 years ago
WTP
WTP ℹ️
0%
<5 µg/L
Below Reporting Level
1/15/2001
24 years ago
Minimum Reporting Level: 5 µg/L
Reference Level: ?
Contaminant Details

molinate (4)

WTP
WTP ℹ️
0%
<0.9 µg/L
Below Reporting Level
10/22/2001
23 years ago
WTP
WTP ℹ️
0%
<0.9 µg/L
Below Reporting Level
7/23/2001
24 years ago
WTP
WTP ℹ️
0%
<0.9 µg/L
Below Reporting Level
4/23/2001
24 years ago
WTP
WTP ℹ️
0%
<0.9 µg/L
Below Reporting Level
1/15/2001
24 years ago
Minimum Reporting Level: 0.9 µg/L
Reference Level: ?
Contaminant Details

molybdenum (9)

Sample Tap
Martha Ann Simpson WTP ℹ️
690%
6.9 µg/L
⚠️ Exceeds Reporting Level of 1 µg/L by 5.9 µg/L
9/9/2014
11 years ago
DSMRT for Simpson WTP
Distribution System - SW ℹ️
665%
6.65 µg/L
⚠️ Exceeds Reporting Level of 1 µg/L by 5.65 µg/L
9/9/2014
11 years ago
DSMRT for Simpson WTP
Distribution System - SW ℹ️
641%
6.41 µg/L
⚠️ Exceeds Reporting Level of 1 µg/L by 5.41 µg/L
12/19/2013
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
616%
6.16 µg/L
⚠️ Exceeds Reporting Level of 1 µg/L by 5.16 µg/L
12/19/2013
11 years ago
DSMRT for Meter from Harlington
Distribution System - SW ℹ️
646%
6.46 µg/L
⚠️ Exceeds Reporting Level of 1 µg/L by 5.46 µg/L
9/30/2013
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
645%
6.45 µg/L
⚠️ Exceeds Reporting Level of 1 µg/L by 5.45 µg/L
9/30/2013
11 years ago
DSMRT for Simpson WTP
Distribution System - SW ℹ️
632%
6.32 µg/L
⚠️ Exceeds Reporting Level of 1 µg/L by 5.32 µg/L
9/30/2013
11 years ago
Sample Tap
Meter from North Cameron Regional WSC ℹ️
612%
6.12 µg/L
⚠️ Exceeds Reporting Level of 1 µg/L by 5.12 µg/L
9/30/2013
11 years ago
Sample Tap
Meter from Harlingen Water Works ℹ️
595%
5.95 µg/L
⚠️ Exceeds Reporting Level of 1 µg/L by 4.95 µg/L
9/30/2013
11 years ago
Minimum Reporting Level: 1 µg/L
Reference Level: ?
Contaminant Details

N-ethyl perfluorooctanesulfonamidoacetic acid (10)

Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.005 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.005 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.005 µg/L
Below Reporting Level
1/8/2025
8 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.005 µg/L
Below Reporting Level
1/8/2025
8 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.005 µg/L
Below Reporting Level
1/8/2025
8 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.005 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.005 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.005 µg/L
Below Reporting Level
7/30/2024
13 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.005 µg/L
Below Reporting Level
7/17/2024
14 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.005 µg/L
Below Reporting Level
7/17/2024
14 months ago
Minimum Reporting Level: 0.005 µg/L
Reference Level: ?
Contaminant Details

N-methyl perfluorooctanesulfonamidoacetic acid (10)

Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.006 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.006 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.006 µg/L
Below Reporting Level
1/8/2025
8 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.006 µg/L
Below Reporting Level
1/8/2025
8 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.006 µg/L
Below Reporting Level
1/8/2025
8 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.006 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.006 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.006 µg/L
Below Reporting Level
7/30/2024
13 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.006 µg/L
Below Reporting Level
7/17/2024
14 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.006 µg/L
Below Reporting Level
7/17/2024
14 months ago
Minimum Reporting Level: 0.006 µg/L
Reference Level: ?
Contaminant Details

nitrobenzene (4)

WTP
WTP ℹ️
0%
<10 µg/L
Below Reporting Level
10/22/2001
23 years ago
WTP
WTP ℹ️
0%
<10 µg/L
Below Reporting Level
7/23/2001
24 years ago
WTP
WTP ℹ️
0%
<10 µg/L
Below Reporting Level
4/23/2001
24 years ago
WTP
WTP ℹ️
0%
<10 µg/L
Below Reporting Level
1/15/2001
24 years ago
Minimum Reporting Level: 10 µg/L
Reference Level: ?
Contaminant Details

nonafluoro-3,6-dioxaheptanoic acid (10)

Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.02 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.02 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.02 µg/L
Below Reporting Level
1/30/2025
7 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.02 µg/L
Below Reporting Level
1/30/2025
7 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.02 µg/L
Below Reporting Level
1/8/2025
8 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.02 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.02 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.02 µg/L
Below Reporting Level
7/30/2024
13 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.02 µg/L
Below Reporting Level
7/17/2024
14 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.02 µg/L
Below Reporting Level
7/17/2024
14 months ago
Minimum Reporting Level: 0.02 µg/L
Reference Level: ?
Contaminant Details

o-toluidine (10)

Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.007 µg/L
Below Reporting Level
9/24/2020
4 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.007 µg/L
Below Reporting Level
9/24/2020
4 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.007 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.007 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.007 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.007 µg/L
Below Reporting Level
3/17/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.007 µg/L
Below Reporting Level
3/17/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.007 µg/L
Below Reporting Level
12/17/2019
5 years ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.007 µg/L
Below Reporting Level
12/17/2019
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.007 µg/L
Below Reporting Level
12/17/2019
5 years ago
Minimum Reporting Level: 0.007 µg/L
Reference Level: ?
Contaminant Details

oxyfluorfen (10)

Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.05 µg/L
Below Reporting Level
12/16/2020
4 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.05 µg/L
Below Reporting Level
9/24/2020
4 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.05 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.05 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.05 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.05 µg/L
Below Reporting Level
3/17/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.05 µg/L
Below Reporting Level
3/17/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.05 µg/L
Below Reporting Level
12/17/2019
5 years ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.05 µg/L
Below Reporting Level
12/17/2019
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.05 µg/L
Below Reporting Level
12/17/2019
5 years ago
Minimum Reporting Level: 0.05 µg/L
Reference Level: 200 µg/L
Contaminant Details

perchlorate (4)

WTP
WTP ℹ️
0%
<4 µg/L
Below Reporting Level
10/22/2001
23 years ago
WTP
WTP ℹ️
0%
<4 µg/L
Below Reporting Level
7/23/2001
24 years ago
WTP
WTP ℹ️
0%
<4 µg/L
Below Reporting Level
4/23/2001
24 years ago
WTP
WTP ℹ️
0%
<4 µg/L
Below Reporting Level
1/15/2001
24 years ago
Minimum Reporting Level: 4 µg/L
Reference Level: ?
Contaminant Details

perfluoro(2-ethoxyethane)sulfonic acid (10)

Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.003 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.003 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.003 µg/L
Below Reporting Level
1/30/2025
7 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.003 µg/L
Below Reporting Level
1/30/2025
7 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.003 µg/L
Below Reporting Level
1/8/2025
8 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.003 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.003 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.003 µg/L
Below Reporting Level
7/30/2024
13 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.003 µg/L
Below Reporting Level
7/17/2024
14 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.003 µg/L
Below Reporting Level
7/17/2024
14 months ago
Minimum Reporting Level: 0.003 µg/L
Reference Level: ?
Contaminant Details

perfluoro-3-methoxypropanoic acid (10)

Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.004 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.004 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.004 µg/L
Below Reporting Level
1/30/2025
7 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.004 µg/L
Below Reporting Level
1/30/2025
7 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.004 µg/L
Below Reporting Level
1/8/2025
8 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.004 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.004 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.004 µg/L
Below Reporting Level
7/30/2024
13 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.004 µg/L
Below Reporting Level
7/17/2024
14 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.004 µg/L
Below Reporting Level
7/17/2024
14 months ago
Minimum Reporting Level: 0.004 µg/L
Reference Level: ?
Contaminant Details

perfluoro-4-methoxybutanoic acid (10)

Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.003 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.003 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.003 µg/L
Below Reporting Level
1/30/2025
7 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.003 µg/L
Below Reporting Level
1/30/2025
7 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.003 µg/L
Below Reporting Level
1/8/2025
8 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.003 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.003 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.003 µg/L
Below Reporting Level
7/30/2024
13 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.003 µg/L
Below Reporting Level
7/17/2024
14 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.003 µg/L
Below Reporting Level
7/17/2024
14 months ago
Minimum Reporting Level: 0.003 µg/L
Reference Level: ?
Contaminant Details

perfluorobutanesulfonic acid (15)

Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.003 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.003 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
116.7%
0.0035 µg/L
⚠️ Exceeds Reporting Level of 0.003 µg/L by 0.0005 µg/L
1/30/2025
7 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.003 µg/L
Below Reporting Level
1/30/2025
7 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.003 µg/L
Below Reporting Level
1/8/2025
8 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.003 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.003 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.003 µg/L
Below Reporting Level
7/30/2024
13 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
100%
0.003 µg/L
⚠️ Exceeds Reporting Level of 0.003 µg/L by 0 µg/L
7/17/2024
14 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.003 µg/L
Below Reporting Level
7/17/2024
14 months ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.09 µg/L
Below Reporting Level
6/24/2014
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.09 µg/L
Below Reporting Level
12/19/2013
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.09 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from Harlingen Water Works ℹ️
0%
<0.09 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from North Cameron Regional WSC ℹ️
0%
<0.09 µg/L
Below Reporting Level
9/30/2013
11 years ago
Minimum Reporting Level: 0.003 µg/L
Reference Level: ?
Contaminant Details

perfluorobutanoic acid (10)

Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
114%
0.0057 µg/L
⚠️ Exceeds Reporting Level of 0.005 µg/L by 0.0007 µg/L
4/9/2025
5 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
112%
0.0056 µg/L
⚠️ Exceeds Reporting Level of 0.005 µg/L by 0.0006 µg/L
4/9/2025
5 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
230%
0.0115 µg/L
⚠️ Exceeds Reporting Level of 0.005 µg/L by 0.0065 µg/L
1/30/2025
7 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
182%
0.0091 µg/L
⚠️ Exceeds Reporting Level of 0.005 µg/L by 0.0041 µg/L
1/30/2025
7 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.005 µg/L
Below Reporting Level
1/8/2025
8 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
226%
0.0113 µg/L
⚠️ Exceeds Reporting Level of 0.005 µg/L by 0.0063 µg/L
10/10/2024
11 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
218%
0.0109 µg/L
⚠️ Exceeds Reporting Level of 0.005 µg/L by 0.0059 µg/L
10/10/2024
11 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.005 µg/L
Below Reporting Level
7/30/2024
13 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
296%
0.0148 µg/L
⚠️ Exceeds Reporting Level of 0.005 µg/L by 0.0098 µg/L
7/17/2024
14 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.005 µg/L
Below Reporting Level
7/17/2024
14 months ago
Minimum Reporting Level: 0.005 µg/L
Reference Level: ?
Contaminant Details

perfluorodecanoic acid (10)

Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.003 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.003 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.003 µg/L
Below Reporting Level
1/30/2025
7 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.003 µg/L
Below Reporting Level
1/30/2025
7 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.003 µg/L
Below Reporting Level
1/8/2025
8 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.003 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.003 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.003 µg/L
Below Reporting Level
7/30/2024
13 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.003 µg/L
Below Reporting Level
7/17/2024
14 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.003 µg/L
Below Reporting Level
7/17/2024
14 months ago
Minimum Reporting Level: 0.003 µg/L
Reference Level: ?
Contaminant Details

perfluorododecanoic acid (10)

Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.003 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.003 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.003 µg/L
Below Reporting Level
1/30/2025
7 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.003 µg/L
Below Reporting Level
1/30/2025
7 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.003 µg/L
Below Reporting Level
1/8/2025
8 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.003 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.003 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.003 µg/L
Below Reporting Level
7/30/2024
13 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.003 µg/L
Below Reporting Level
7/17/2024
14 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.003 µg/L
Below Reporting Level
7/17/2024
14 months ago
Minimum Reporting Level: 0.003 µg/L
Reference Level: ?
Contaminant Details

perfluoroheptanesulfonic acid (10)

Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.003 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.003 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.003 µg/L
Below Reporting Level
1/30/2025
7 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.003 µg/L
Below Reporting Level
1/30/2025
7 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.003 µg/L
Below Reporting Level
1/8/2025
8 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.003 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.003 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.003 µg/L
Below Reporting Level
7/30/2024
13 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.003 µg/L
Below Reporting Level
7/17/2024
14 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.003 µg/L
Below Reporting Level
7/17/2024
14 months ago
Minimum Reporting Level: 0.003 µg/L
Reference Level: ?
Contaminant Details

perfluoroheptanoic acid (15)

Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.003 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.003 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
133.3%
0.004 µg/L
⚠️ Exceeds Reporting Level of 0.003 µg/L by 0.001 µg/L
1/30/2025
7 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.003 µg/L
Below Reporting Level
1/30/2025
7 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.003 µg/L
Below Reporting Level
1/8/2025
8 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.003 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.003 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.003 µg/L
Below Reporting Level
7/30/2024
13 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.003 µg/L
Below Reporting Level
7/17/2024
14 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.003 µg/L
Below Reporting Level
7/17/2024
14 months ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.01 µg/L
Below Reporting Level
6/24/2014
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.01 µg/L
Below Reporting Level
12/19/2013
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.01 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from Harlingen Water Works ℹ️
0%
<0.01 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from North Cameron Regional WSC ℹ️
0%
<0.01 µg/L
Below Reporting Level
9/30/2013
11 years ago
Minimum Reporting Level: 0.003 µg/L
Reference Level: ?
Contaminant Details

perfluorohexanesulfonic acid (15)

Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.003 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.003 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
150%
0.0045 µg/L
⚠️ Exceeds Reporting Level of 0.003 µg/L by 0.0015 µg/L
1/30/2025
7 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.003 µg/L
Below Reporting Level
1/30/2025
7 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.003 µg/L
Below Reporting Level
1/8/2025
8 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.003 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.003 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.003 µg/L
Below Reporting Level
7/30/2024
13 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
103.3%
0.0031 µg/L
⚠️ Exceeds Reporting Level of 0.003 µg/L by 0.0001 µg/L
7/17/2024
14 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.003 µg/L
Below Reporting Level
7/17/2024
14 months ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
6/24/2014
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
12/19/2013
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.03 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from Harlingen Water Works ℹ️
0%
<0.03 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from North Cameron Regional WSC ℹ️
0%
<0.03 µg/L
Below Reporting Level
9/30/2013
11 years ago
Minimum Reporting Level: 0.003 µg/L
Reference Level: ?
Contaminant Details

perfluorohexanoic acid (10)

Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
200%
0.006 µg/L
⚠️ Exceeds Reporting Level of 0.003 µg/L by 0.003 µg/L
4/9/2025
5 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
123.3%
0.0037 µg/L
⚠️ Exceeds Reporting Level of 0.003 µg/L by 0.0007 µg/L
4/9/2025
5 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
373.3%
0.0112 µg/L
⚠️ Exceeds Reporting Level of 0.003 µg/L by 0.0082 µg/L
1/30/2025
7 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
210%
0.0063 µg/L
⚠️ Exceeds Reporting Level of 0.003 µg/L by 0.0033 µg/L
1/30/2025
7 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.003 µg/L
Below Reporting Level
1/8/2025
8 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
176.7%
0.0053 µg/L
⚠️ Exceeds Reporting Level of 0.003 µg/L by 0.0023 µg/L
10/10/2024
11 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.003 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.003 µg/L
Below Reporting Level
7/30/2024
13 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
163.3%
0.0049 µg/L
⚠️ Exceeds Reporting Level of 0.003 µg/L by 0.0019 µg/L
7/17/2024
14 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
123.3%
0.0037 µg/L
⚠️ Exceeds Reporting Level of 0.003 µg/L by 0.0007 µg/L
7/17/2024
14 months ago
Minimum Reporting Level: 0.003 µg/L
Reference Level: ?
Contaminant Details

perfluorononanoic acid (15)

Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.004 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.004 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.004 µg/L
Below Reporting Level
1/30/2025
7 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.004 µg/L
Below Reporting Level
1/30/2025
7 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.004 µg/L
Below Reporting Level
1/8/2025
8 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.004 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.004 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.004 µg/L
Below Reporting Level
7/30/2024
13 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.004 µg/L
Below Reporting Level
7/17/2024
14 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.004 µg/L
Below Reporting Level
7/17/2024
14 months ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.02 µg/L
Below Reporting Level
6/24/2014
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.02 µg/L
Below Reporting Level
12/19/2013
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.02 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from Harlingen Water Works ℹ️
0%
<0.02 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from North Cameron Regional WSC ℹ️
0%
<0.02 µg/L
Below Reporting Level
9/30/2013
11 years ago
Minimum Reporting Level: 0.004 µg/L
Reference Level: ?
Contaminant Details

perfluorooctanesulfonic acid (15)

Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
107.5%
0.0043 µg/L
⚠️ Exceeds Reporting Level of 0.004 µg/L by 0.0003 µg/L
4/9/2025
5 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.004 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
132.5%
0.0053 µg/L
⚠️ Exceeds Reporting Level of 0.004 µg/L by 0.0013 µg/L
1/30/2025
7 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.004 µg/L
Below Reporting Level
1/30/2025
7 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.004 µg/L
Below Reporting Level
1/8/2025
8 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.004 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.004 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.004 µg/L
Below Reporting Level
7/30/2024
13 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
140%
0.0056 µg/L
⚠️ Exceeds Reporting Level of 0.004 µg/L by 0.0016 µg/L
7/17/2024
14 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.004 µg/L
Below Reporting Level
7/17/2024
14 months ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.04 µg/L
Below Reporting Level
6/24/2014
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.04 µg/L
Below Reporting Level
12/19/2013
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.04 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from Harlingen Water Works ℹ️
0%
<0.04 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from North Cameron Regional WSC ℹ️
0%
<0.04 µg/L
Below Reporting Level
9/30/2013
11 years ago
Minimum Reporting Level: 0.004 µg/L
Reference Level: ?
Contaminant Details

perfluorooctanoic acid (15)

Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.004 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.004 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
135%
0.0054 µg/L
⚠️ Exceeds Reporting Level of 0.004 µg/L by 0.0014 µg/L
1/30/2025
7 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.004 µg/L
Below Reporting Level
1/30/2025
7 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.004 µg/L
Below Reporting Level
1/8/2025
8 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.004 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.004 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.004 µg/L
Below Reporting Level
7/30/2024
13 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.004 µg/L
Below Reporting Level
7/17/2024
14 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.004 µg/L
Below Reporting Level
7/17/2024
14 months ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.02 µg/L
Below Reporting Level
6/24/2014
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.02 µg/L
Below Reporting Level
12/19/2013
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.02 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from Harlingen Water Works ℹ️
0%
<0.02 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from North Cameron Regional WSC ℹ️
0%
<0.02 µg/L
Below Reporting Level
9/30/2013
11 years ago
Minimum Reporting Level: 0.004 µg/L
Reference Level: ?
Contaminant Details

perfluoropentanesulfonic acid (10)

Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.004 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.004 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.004 µg/L
Below Reporting Level
1/30/2025
7 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.004 µg/L
Below Reporting Level
1/30/2025
7 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.004 µg/L
Below Reporting Level
1/8/2025
8 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.004 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.004 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.004 µg/L
Below Reporting Level
7/30/2024
13 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.004 µg/L
Below Reporting Level
7/17/2024
14 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.004 µg/L
Below Reporting Level
7/17/2024
14 months ago
Minimum Reporting Level: 0.004 µg/L
Reference Level: ?
Contaminant Details

perfluoropentanoic acid (10)

Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
196.7%
0.0059 µg/L
⚠️ Exceeds Reporting Level of 0.003 µg/L by 0.0029 µg/L
4/9/2025
5 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
130%
0.0039 µg/L
⚠️ Exceeds Reporting Level of 0.003 µg/L by 0.0009 µg/L
4/9/2025
5 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
390%
0.0117 µg/L
⚠️ Exceeds Reporting Level of 0.003 µg/L by 0.0087 µg/L
1/30/2025
7 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
216.7%
0.0065 µg/L
⚠️ Exceeds Reporting Level of 0.003 µg/L by 0.0035 µg/L
1/30/2025
7 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.003 µg/L
Below Reporting Level
1/8/2025
8 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
186.7%
0.0056 µg/L
⚠️ Exceeds Reporting Level of 0.003 µg/L by 0.0026 µg/L
10/10/2024
11 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.003 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.003 µg/L
Below Reporting Level
7/30/2024
13 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
166.7%
0.005 µg/L
⚠️ Exceeds Reporting Level of 0.003 µg/L by 0.002 µg/L
7/17/2024
14 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
130%
0.0039 µg/L
⚠️ Exceeds Reporting Level of 0.003 µg/L by 0.0009 µg/L
7/17/2024
14 months ago
Minimum Reporting Level: 0.003 µg/L
Reference Level: ?
Contaminant Details

perfluorotetradecanoic acid (10)

Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.008 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.008 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.008 µg/L
Below Reporting Level
1/8/2025
8 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.008 µg/L
Below Reporting Level
1/8/2025
8 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.008 µg/L
Below Reporting Level
1/8/2025
8 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.008 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.008 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.008 µg/L
Below Reporting Level
7/30/2024
13 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.008 µg/L
Below Reporting Level
7/17/2024
14 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.008 µg/L
Below Reporting Level
7/17/2024
14 months ago
Minimum Reporting Level: 0.008 µg/L
Reference Level: ?
Contaminant Details

perfluorotridecanoic acid (10)

Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.007 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.007 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.007 µg/L
Below Reporting Level
1/8/2025
8 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.007 µg/L
Below Reporting Level
1/8/2025
8 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.007 µg/L
Below Reporting Level
1/8/2025
8 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.007 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.007 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.007 µg/L
Below Reporting Level
7/30/2024
13 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.007 µg/L
Below Reporting Level
7/17/2024
14 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.007 µg/L
Below Reporting Level
7/17/2024
14 months ago
Minimum Reporting Level: 0.007 µg/L
Reference Level: ?
Contaminant Details

perfluoroundecanoic acid (10)

Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.002 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.002 µg/L
Below Reporting Level
4/9/2025
5 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.002 µg/L
Below Reporting Level
1/30/2025
7 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.002 µg/L
Below Reporting Level
1/30/2025
7 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.002 µg/L
Below Reporting Level
1/8/2025
8 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.002 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.002 µg/L
Below Reporting Level
10/10/2024
11 months ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.002 µg/L
Below Reporting Level
7/30/2024
13 months ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.002 µg/L
Below Reporting Level
7/17/2024
14 months ago
Entry Point to Dist. System
Martha A. Simpson WTP ℹ️
0%
<0.002 µg/L
Below Reporting Level
7/17/2024
14 months ago
Minimum Reporting Level: 0.002 µg/L
Reference Level: ?
Contaminant Details

profenofos (10)

Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.3 µg/L
Below Reporting Level
12/16/2020
4 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.3 µg/L
Below Reporting Level
9/24/2020
4 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.3 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.3 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.3 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.3 µg/L
Below Reporting Level
3/17/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.3 µg/L
Below Reporting Level
3/17/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.3 µg/L
Below Reporting Level
12/17/2019
5 years ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.3 µg/L
Below Reporting Level
12/17/2019
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.3 µg/L
Below Reporting Level
12/17/2019
5 years ago
Minimum Reporting Level: 0.3 µg/L
Reference Level: 0.3 µg/L
Contaminant Details

quinoline (10)

Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.02 µg/L
Below Reporting Level
9/24/2020
4 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.02 µg/L
Below Reporting Level
9/24/2020
4 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.02 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.02 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.02 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.02 µg/L
Below Reporting Level
3/17/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.02 µg/L
Below Reporting Level
3/17/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.02 µg/L
Below Reporting Level
12/17/2019
5 years ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.02 µg/L
Below Reporting Level
12/17/2019
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.02 µg/L
Below Reporting Level
12/17/2019
5 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
0%
<1 µg/L
Below Reporting Level
10/22/2001
23 years ago
WTP
WTP ℹ️
0%
<1 µg/L
Below Reporting Level
7/23/2001
24 years ago
WTP
WTP ℹ️
0%
<1 µg/L
Below Reporting Level
4/23/2001
24 years ago
WTP
WTP ℹ️
0%
<1 µg/L
Below Reporting Level
1/15/2001
24 years ago
Minimum Reporting Level: 1 µg/L
Reference Level: ?
Contaminant Details

strontium (9)

Sample Tap
Martha Ann Simpson WTP ℹ️
426666.7%
1280 µg/L
⚠️ Exceeds Reporting Level of 0.3 µg/L by 1279.7 µg/L
9/9/2014
11 years ago
DSMRT for Simpson WTP
Distribution System - SW ℹ️
406666.7%
1220 µg/L
⚠️ Exceeds Reporting Level of 0.3 µg/L by 1219.7 µg/L
9/9/2014
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
413333.3%
1240 µg/L
⚠️ Exceeds Reporting Level of 0.3 µg/L by 1239.7 µg/L
12/19/2013
11 years ago
DSMRT for Simpson WTP
Distribution System - SW ℹ️
386666.7%
1160 µg/L
⚠️ Exceeds Reporting Level of 0.3 µg/L by 1159.7 µg/L
12/19/2013
11 years ago
DSMRT for Simpson WTP
Distribution System - SW ℹ️
430000%
1290 µg/L
⚠️ Exceeds Reporting Level of 0.3 µg/L by 1289.7 µg/L
9/30/2013
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
420000%
1260 µg/L
⚠️ Exceeds Reporting Level of 0.3 µg/L by 1259.7 µg/L
9/30/2013
11 years ago
Sample Tap
Meter from North Cameron Regional WSC ℹ️
360000%
1080 µg/L
⚠️ Exceeds Reporting Level of 0.3 µg/L by 1079.7 µg/L
9/30/2013
11 years ago
Sample Tap
Meter from Harlingen Water Works ℹ️
346666.7%
1040 µg/L
⚠️ Exceeds Reporting Level of 0.3 µg/L by 1039.7 µg/L
9/30/2013
11 years ago
DSMRT for Meter from Harlington
Distribution System - SW ℹ️
217000%
651 µg/L
⚠️ Exceeds Reporting Level of 0.3 µg/L by 650.7 µg/L
9/30/2013
11 years ago
Minimum Reporting Level: 0.3 µg/L
Reference Level: ?
Contaminant Details

tebuconazole (10)

Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.2 µg/L
Below Reporting Level
12/16/2020
4 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.2 µg/L
Below Reporting Level
9/24/2020
4 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.2 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.2 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.2 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.2 µg/L
Below Reporting Level
3/17/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.2 µg/L
Below Reporting Level
3/17/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.2 µg/L
Below Reporting Level
12/17/2019
5 years ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.2 µg/L
Below Reporting Level
12/17/2019
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.2 µg/L
Below Reporting Level
12/17/2019
5 years ago
Minimum Reporting Level: 0.2 µg/L
Reference Level: 190 µg/L
Contaminant Details

terbacil (4)

WTP
WTP ℹ️
0%
<2 µg/L
Below Reporting Level
10/22/2001
23 years ago
WTP
WTP ℹ️
0%
<2 µg/L
Below Reporting Level
7/23/2001
24 years ago
WTP
WTP ℹ️
0%
<2 µg/L
Below Reporting Level
4/23/2001
24 years ago
WTP
WTP ℹ️
0%
<2 µg/L
Below Reporting Level
1/15/2001
24 years ago
Minimum Reporting Level: 2 µg/L
Reference Level: ?
Contaminant Details

testosterone (5)

Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.0001 µg/L
Below Reporting Level
6/24/2014
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.0001 µg/L
Below Reporting Level
12/19/2013
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
0%
<0.0001 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from Harlingen Water Works ℹ️
0%
<0.0001 µg/L
Below Reporting Level
9/30/2013
11 years ago
Sample Tap
Meter from North Cameron Regional WSC ℹ️
0%
<0.0001 µg/L
Below Reporting Level
9/30/2013
11 years ago
Minimum Reporting Level: 0.0001 µg/L
Reference Level: ?
Contaminant Details

total microcystins (15)

Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.3 µg/L
Below Reporting Level
8/18/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.3 µg/L
Below Reporting Level
8/18/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.3 µg/L
Below Reporting Level
8/6/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.3 µg/L
Below Reporting Level
8/6/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.3 µg/L
Below Reporting Level
7/21/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.3 µg/L
Below Reporting Level
7/21/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.3 µg/L
Below Reporting Level
7/8/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.3 µg/L
Below Reporting Level
7/8/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.3 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.3 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.3 µg/L
Below Reporting Level
6/4/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.3 µg/L
Below Reporting Level
6/4/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.3 µg/L
Below Reporting Level
5/21/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.3 µg/L
Below Reporting Level
5/21/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.3 µg/L
Below Reporting Level
5/6/2020
5 years ago
Minimum Reporting Level: 0.3 µg/L
Reference Level: ?
Contaminant Details

Total Permethrin (10)

Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.04 µg/L
Below Reporting Level
12/16/2020
4 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.04 µg/L
Below Reporting Level
9/24/2020
4 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.04 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.04 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.04 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.04 µg/L
Below Reporting Level
3/17/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.04 µg/L
Below Reporting Level
3/17/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.04 µg/L
Below Reporting Level
12/17/2019
5 years ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.04 µg/L
Below Reporting Level
12/17/2019
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.04 µg/L
Below Reporting Level
12/17/2019
5 years ago
Minimum Reporting Level: 0.04 µg/L
Reference Level: 3.344 µg/L
Contaminant Details

tribufos (10)

Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.07 µg/L
Below Reporting Level
12/16/2020
4 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.07 µg/L
Below Reporting Level
9/24/2020
4 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.07 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.07 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.07 µg/L
Below Reporting Level
6/18/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.07 µg/L
Below Reporting Level
3/17/2020
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.07 µg/L
Below Reporting Level
3/17/2020
5 years ago
Entry Point to Dist. System
Meter from Harlingen Water Works ℹ️
0%
<0.07 µg/L
Below Reporting Level
12/17/2019
5 years ago
Entry Point to Dist. System
Meter from North Cameron Regional WSC ℹ️
0%
<0.07 µg/L
Below Reporting Level
12/17/2019
5 years ago
Entry Point to Dist. System
Nelson Rd. WTP ℹ️
0%
<0.07 µg/L
Below Reporting Level
12/17/2019
5 years ago
Minimum Reporting Level: 0.07 µg/L
Reference Level: 0.6 µg/L
Contaminant Details

vanadium (9)

DSMRT for Simpson WTP
Distribution System - SW ℹ️
2005%
4.01 µg/L
⚠️ Exceeds Reporting Level of 0.2 µg/L by 3.81 µg/L
9/9/2014
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
1965%
3.93 µg/L
⚠️ Exceeds Reporting Level of 0.2 µg/L by 3.73 µg/L
9/9/2014
11 years ago
DSMRT for Simpson WTP
Distribution System - SW ℹ️
1485%
2.97 µg/L
⚠️ Exceeds Reporting Level of 0.2 µg/L by 2.77 µg/L
12/19/2013
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
1265%
2.53 µg/L
⚠️ Exceeds Reporting Level of 0.2 µg/L by 2.33 µg/L
12/19/2013
11 years ago
Sample Tap
Martha Ann Simpson WTP ℹ️
2525%
5.05 µg/L
⚠️ Exceeds Reporting Level of 0.2 µg/L by 4.85 µg/L
9/30/2013
11 years ago
DSMRT for Simpson WTP
Distribution System - SW ℹ️
2340%
4.68 µg/L
⚠️ Exceeds Reporting Level of 0.2 µg/L by 4.48 µg/L
9/30/2013
11 years ago
DSMRT for Meter from Harlington
Distribution System - SW ℹ️
1345%
2.69 µg/L
⚠️ Exceeds Reporting Level of 0.2 µg/L by 2.49 µg/L
9/30/2013
11 years ago
Sample Tap
Meter from Harlingen Water Works ℹ️
338%
0.676 µg/L
⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.476 µg/L
9/30/2013
11 years ago
Sample Tap
Meter from North Cameron Regional WSC ℹ️
0%
<0.2 µg/L
Below Reporting Level
9/30/2013
11 years ago
Minimum Reporting Level: 0.2 µg/L
Reference Level: ?
Contaminant Details

Sampling Facilities

Meter from Harlingen Water Works
Surface Water (SW)

Entry Point to Dist. SystemEntry Point to the Distribution System (EP)
Sample TapEntry Point to the Distribution System (EP)

Meter from North Cameron Regional WSC
Ground Water (GW)

Entry Point to Dist. SystemEntry Point to the Distribution System (EP)
Sample TapEntry Point to the Distribution System (EP)

Martha A. Simpson WTP
Surface Water (SW)

Entry Point to Dist. SystemEntry Point to the Distribution System (EP)

Nelson Rd. WTP
Surface Water (SW)

Entry Point to Dist. SystemEntry Point to the Distribution System (EP)

Distribution System
Multiple Sources (MX)

Fernando East HydrantDistribution System (DS)
31400 Share 28 RoadDistribution System (DS)
FM Road 1599 HydrantDistribution System (DS)
Gen. Brandt HighwayDistribution System (DS)

Distribution System - SW
Surface Water (SW)

DSMRT for Simpson WTPMaximum Residence Time (MR)
DSMRT for Meter from HarlingtonMaximum Residence Time (MR)

Martha Ann Simpson WTP
Surface Water (SW)

Sample TapEntry Point to the Distribution System (EP)

EP001
Surface Water (SW)

WTP @ PLANT 1Entry Point to the Distribution System (EP)

WTP
Surface Water (SW)

WTPEntry Point to the Distribution System (EP)

FAQ

Is East Rio Hondo WSC tap water safe to drink?

When was East Rio Hondo WSC last tested for water contamination?

The latest water samples were taken on April 9th, 2025.