Harris County MUD #183 (TX) Water Quality

Harris County MUD #183 is a small public water system in EPA region 6 that provides tap water for the 77084 zip codes. It has 3 facilities where the water supply was tested for 50 chemical contaminants that impact tap water quality and human health.

The maximum reported level of HAA5 (five regulated haloacetic acids) was 30.12 µg/L. The maximum reported level of Manganese was 7.1 µg/L. There were 2 contamintants found in the Harris County MUD #183 water supply at levels that were above the minimum reporting level.

Contaminants

1-butanol (4)

EP001 17926 Valley Knoll

Sampling Station ℹ️

<2 µg/L

Below Reporting Level

11/6/2019

5 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<2 µg/L

Below Reporting Level

9/9/2019

6 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<2 µg/L

Below Reporting Level

5/8/2019

6 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<2 µg/L

Below Reporting Level

2/12/2019

6 years ago

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

Contaminant Details

11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (4)

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.005 µg/L

Below Reporting Level

12/18/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.005 µg/L

Below Reporting Level

12/13/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.005 µg/L

Below Reporting Level

6/19/2023

2 years ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.005 µg/L

Below Reporting Level

3/22/2023

2 years ago

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

Contaminant Details

1H,1H,2H,2H-perfluorodecane sulfonic acid (4)

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.005 µg/L

Below Reporting Level

12/18/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.005 µg/L

Below Reporting Level

12/13/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.005 µg/L

Below Reporting Level

6/19/2023

2 years ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.005 µg/L

Below Reporting Level

3/22/2023

2 years ago

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

Contaminant Details

1H,1H,2H,2H-perfluorohexane sulfonic acid (4)

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

12/18/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

12/13/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

6/19/2023

2 years ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

3/22/2023

2 years ago

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

Contaminant Details

1H,1H,2H,2H-perfluorooctane sulfonic acid (4)

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.005 µg/L

Below Reporting Level

12/18/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.005 µg/L

Below Reporting Level

12/13/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.005 µg/L

Below Reporting Level

6/19/2023

2 years ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.005 µg/L

Below Reporting Level

3/22/2023

2 years ago

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

Contaminant Details

2-methoxyethanol (4)

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.4 µg/L

Below Reporting Level

11/6/2019

5 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.4 µg/L

Below Reporting Level

9/9/2019

6 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.4 µg/L

Below Reporting Level

5/8/2019

6 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.4 µg/L

Below Reporting Level

2/12/2019

6 years ago

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

Contaminant Details

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

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.5 µg/L

Below Reporting Level

11/6/2019

5 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.5 µg/L

Below Reporting Level

9/9/2019

6 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.5 µg/L

Below Reporting Level

5/8/2019

6 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.5 µg/L

Below Reporting Level

2/12/2019

6 years ago

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

Contaminant Details

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

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

12/18/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

12/13/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

6/19/2023

2 years ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

3/22/2023

2 years ago

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

Contaminant Details

9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (4)

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.002 µg/L

Below Reporting Level

12/18/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.002 µg/L

Below Reporting Level

12/13/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.002 µg/L

Below Reporting Level

6/19/2023

2 years ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.002 µg/L

Below Reporting Level

3/22/2023

2 years ago

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

Contaminant Details

alpha-hexachlorocyclohexane (4)

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.01 µg/L

Below Reporting Level

11/6/2019

5 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.01 µg/L

Below Reporting Level

9/9/2019

6 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.01 µg/L

Below Reporting Level

5/8/2019

6 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.01 µg/L

Below Reporting Level

3/19/2019

6 years ago

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

Contaminant Details

Butylated Hydroxyanisole (4)

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.03 µg/L

Below Reporting Level

11/6/2019

5 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.03 µg/L

Below Reporting Level

9/9/2019

6 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.03 µg/L

Below Reporting Level

5/8/2019

6 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.03 µg/L

Below Reporting Level

3/19/2019

6 years ago

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

Contaminant Details

chlorpyrifos (4)

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.03 µg/L

Below Reporting Level

11/6/2019

5 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.03 µg/L

Below Reporting Level

9/9/2019

6 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.03 µg/L

Below Reporting Level

5/8/2019

6 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.03 µg/L

Below Reporting Level

3/19/2019

6 years ago

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

Contaminant Details

dimethipin (4)

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.2 µg/L

Below Reporting Level

11/6/2019

5 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.2 µg/L

Below Reporting Level

9/9/2019

6 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.2 µg/L

Below Reporting Level

5/8/2019

6 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.2 µg/L

Below Reporting Level

3/19/2019

6 years ago

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

Contaminant Details

ethoprop (4)

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.03 µg/L

Below Reporting Level

11/6/2019

5 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.03 µg/L

Below Reporting Level

9/9/2019

6 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.03 µg/L

Below Reporting Level

5/8/2019

6 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.03 µg/L

Below Reporting Level

3/19/2019

6 years ago

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

Contaminant Details

Germanium (4)

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.3 µg/L

Below Reporting Level

11/6/2019

5 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.3 µg/L

Below Reporting Level

8/6/2019

6 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.3 µg/L

Below Reporting Level

5/8/2019

6 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.3 µg/L

Below Reporting Level

2/12/2019

6 years ago

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

Contaminant Details

HAA5 (five regulated haloacetic acids) (8)

02 5538 Clintridge Dr. Houston

Distribution System ℹ️

6.03 µg/L

Meets Reporting Threshold

12/18/2019

5 years ago

01 5730 Calm Ct. Houston

Distribution System ℹ️

27.84 µg/L

Meets Reporting Threshold

11/6/2019

5 years ago

02 5538 Clintridge Dr. Houston

Distribution System ℹ️

15.1 µg/L

Meets Reporting Threshold

9/9/2019

6 years ago

01 5730 Calm Ct. Houston

Distribution System ℹ️

10.8 µg/L

Meets Reporting Threshold

9/9/2019

6 years ago

01 5730 Calm Ct. Houston

Distribution System ℹ️

19.5 µg/L

Meets Reporting Threshold

5/8/2019

6 years ago

02 5538 Clintridge Dr. Houston

Distribution System ℹ️

18.1 µg/L

Meets Reporting Threshold

5/8/2019

6 years ago

02 5538 Clintridge Dr. Houston

Distribution System ℹ️

30.12 µg/L

⚠️ Exceeds 50% of Reference Level

2/12/2019

6 years ago

01 5730 Calm Ct. Houston

Distribution System ℹ️

27.13 µg/L

Meets Reporting Threshold

2/12/2019

6 years ago

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

Contaminant Details

HAA6Br (six brominated haloacetic acids) (8)

02 5538 Clintridge Dr. Houston

Distribution System ℹ️

4.31 µg/L

12/18/2019

5 years ago

01 5730 Calm Ct. Houston

Distribution System ℹ️

8.44 µg/L

11/6/2019

5 years ago

02 5538 Clintridge Dr. Houston

Distribution System ℹ️

7.7 µg/L

9/9/2019

6 years ago

01 5730 Calm Ct. Houston

Distribution System ℹ️

5.51 µg/L

9/9/2019

6 years ago

01 5730 Calm Ct. Houston

Distribution System ℹ️

10.82 µg/L

5/8/2019

6 years ago

02 5538 Clintridge Dr. Houston

Distribution System ℹ️

10.21 µg/L

5/8/2019

6 years ago

01 5730 Calm Ct. Houston

Distribution System ℹ️

7.33 µg/L

2/12/2019

6 years ago

02 5538 Clintridge Dr. Houston

Distribution System ℹ️

6.02 µg/L

2/12/2019

6 years ago

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

Contaminant Details

HAA9 (nine haloacetic acids) (8)

02 5538 Clintridge Dr. Houston

Distribution System ℹ️

9.41 µg/L

12/18/2019

5 years ago

01 5730 Calm Ct. Houston

Distribution System ℹ️

35.44 µg/L

11/6/2019

5 years ago

02 5538 Clintridge Dr. Houston

Distribution System ℹ️

21.2 µg/L

9/9/2019

6 years ago

01 5730 Calm Ct. Houston

Distribution System ℹ️

15.01 µg/L

9/9/2019

6 years ago

01 5730 Calm Ct. Houston

Distribution System ℹ️

28.42 µg/L

5/8/2019

6 years ago

02 5538 Clintridge Dr. Houston

Distribution System ℹ️

26.51 µg/L

5/8/2019

6 years ago

02 5538 Clintridge Dr. Houston

Distribution System ℹ️

35.52 µg/L

2/12/2019

6 years ago

01 5730 Calm Ct. Houston

Distribution System ℹ️

33.53 µg/L

2/12/2019

6 years ago

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

Contaminant Details

hexafluoropropylene oxide dimer acid (GenX) (4)

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.005 µg/L

Below Reporting Level

12/18/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.005 µg/L

Below Reporting Level

12/13/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.005 µg/L

Below Reporting Level

6/19/2023

2 years ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.005 µg/L

Below Reporting Level

3/22/2023

2 years ago

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

Contaminant Details

lithium (4)

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<9 µg/L

Below Reporting Level

12/13/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

14.2 µg/L

⚠️ Exceeds Reporting Level of 9 µg/L by 5.2 µg/L

9/20/2023

24 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

13.1 µg/L

⚠️ Exceeds Reporting Level of 9 µg/L by 4.1 µg/L

6/19/2023

2 years ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<9 µg/L

Below Reporting Level

3/22/2023

2 years ago

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

Contaminant Details

Manganese (4)

EP001 17926 Valley Knoll

Sampling Station ℹ️

7.1 µg/L

Meets Reporting Threshold

11/6/2019

5 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

3.6 µg/L

Meets Reporting Threshold

8/6/2019

6 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

3.4 µg/L

Meets Reporting Threshold

5/8/2019

6 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

4.1 µg/L

Meets Reporting Threshold

2/12/2019

6 years ago

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

Contaminant Details

N-ethyl perfluorooctanesulfonamidoacetic acid (4)

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.005 µg/L

Below Reporting Level

3/18/2024

18 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.005 µg/L

Below Reporting Level

9/20/2023

24 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.005 µg/L

Below Reporting Level

8/30/2023

25 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.005 µg/L

Below Reporting Level

3/22/2023

2 years ago

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

Contaminant Details

N-methyl perfluorooctanesulfonamidoacetic acid (4)

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.006 µg/L

Below Reporting Level

3/18/2024

18 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.006 µg/L

Below Reporting Level

9/20/2023

24 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.006 µg/L

Below Reporting Level

8/30/2023

25 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.006 µg/L

Below Reporting Level

3/22/2023

2 years ago

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

Contaminant Details

nonafluoro-3,6-dioxaheptanoic acid (4)

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.02 µg/L

Below Reporting Level

12/18/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.02 µg/L

Below Reporting Level

12/13/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.02 µg/L

Below Reporting Level

6/19/2023

2 years ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.02 µg/L

Below Reporting Level

3/22/2023

2 years ago

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

Contaminant Details

o-toluidine (4)

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.007 µg/L

Below Reporting Level

11/6/2019

5 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.007 µg/L

Below Reporting Level

9/9/2019

6 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.007 µg/L

Below Reporting Level

5/8/2019

6 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.007 µg/L

Below Reporting Level

3/19/2019

6 years ago

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

Contaminant Details

oxyfluorfen (4)

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.05 µg/L

Below Reporting Level

11/6/2019

5 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.05 µg/L

Below Reporting Level

9/9/2019

6 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.05 µg/L

Below Reporting Level

5/8/2019

6 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.05 µg/L

Below Reporting Level

3/19/2019

6 years ago

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

Contaminant Details

perfluoro(2-ethoxyethane)sulfonic acid (4)

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

12/18/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

12/13/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

6/19/2023

2 years ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

3/22/2023

2 years ago

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

Contaminant Details

perfluoro-3-methoxypropanoic acid (4)

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.004 µg/L

Below Reporting Level

12/18/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.004 µg/L

Below Reporting Level

12/13/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.004 µg/L

Below Reporting Level

6/19/2023

2 years ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.004 µg/L

Below Reporting Level

3/22/2023

2 years ago

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

Contaminant Details

perfluoro-4-methoxybutanoic acid (4)

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

12/18/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

12/13/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

6/19/2023

2 years ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

3/22/2023

2 years ago

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

Contaminant Details

perfluorobutanesulfonic acid (4)

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

12/18/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

12/13/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

6/19/2023

2 years ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

3/22/2023

2 years ago

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

Contaminant Details

perfluorobutanoic acid (4)

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.005 µg/L

Below Reporting Level

12/18/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

0.0066 µg/L

⚠️ Exceeds Reporting Level of 0.005 µg/L by 0.0016 µg/L

12/13/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.005 µg/L

Below Reporting Level

6/19/2023

2 years ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.005 µg/L

Below Reporting Level

3/22/2023

2 years ago

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

Contaminant Details

perfluorodecanoic acid (4)

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

12/18/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

12/13/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

6/19/2023

2 years ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

3/22/2023

2 years ago

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

Contaminant Details

perfluorododecanoic acid (4)

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

12/18/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

12/13/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

6/19/2023

2 years ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

3/22/2023

2 years ago

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

Contaminant Details

perfluoroheptanesulfonic acid (4)

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

12/18/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

12/13/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

6/19/2023

2 years ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

3/22/2023

2 years ago

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

Contaminant Details

perfluoroheptanoic acid (4)

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

12/18/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

12/13/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

6/19/2023

2 years ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

3/22/2023

2 years ago

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

Contaminant Details

perfluorohexanesulfonic acid (4)

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

12/18/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

0.0031 µg/L

⚠️ Exceeds Reporting Level of 0.003 µg/L by 0.0001 µg/L

12/13/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

6/19/2023

2 years ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

3/22/2023

2 years ago

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

Contaminant Details

perfluorohexanoic acid (4)

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

12/18/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

0.0049 µg/L

⚠️ Exceeds Reporting Level of 0.003 µg/L by 0.0019 µg/L

12/13/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

6/19/2023

2 years ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

3/22/2023

2 years ago

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

Contaminant Details

perfluorononanoic acid (4)

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.004 µg/L

Below Reporting Level

12/18/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.004 µg/L

Below Reporting Level

12/13/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.004 µg/L

Below Reporting Level

6/19/2023

2 years ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.004 µg/L

Below Reporting Level

3/22/2023

2 years ago

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

Contaminant Details

perfluorooctanesulfonic acid (4)

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.004 µg/L

Below Reporting Level

12/18/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.004 µg/L

Below Reporting Level

12/13/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.004 µg/L

Below Reporting Level

6/19/2023

2 years ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.004 µg/L

Below Reporting Level

3/22/2023

2 years ago

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

Contaminant Details

perfluorooctanoic acid (4)

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.004 µg/L

Below Reporting Level

12/18/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.004 µg/L

Below Reporting Level

12/13/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.004 µg/L

Below Reporting Level

6/19/2023

2 years ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.004 µg/L

Below Reporting Level

3/22/2023

2 years ago

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

Contaminant Details

perfluoropentanesulfonic acid (4)

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.004 µg/L

Below Reporting Level

12/18/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.004 µg/L

Below Reporting Level

12/13/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.004 µg/L

Below Reporting Level

6/19/2023

2 years ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.004 µg/L

Below Reporting Level

3/22/2023

2 years ago

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

Contaminant Details

perfluoropentanoic acid (4)

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

12/18/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

0.0065 µg/L

⚠️ Exceeds Reporting Level of 0.003 µg/L by 0.0035 µg/L

12/13/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

6/19/2023

2 years ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.003 µg/L

Below Reporting Level

3/22/2023

2 years ago

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

Contaminant Details

perfluorotetradecanoic acid (4)

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.008 µg/L

Below Reporting Level

3/18/2024

18 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.008 µg/L

Below Reporting Level

9/20/2023

24 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.008 µg/L

Below Reporting Level

8/30/2023

25 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.008 µg/L

Below Reporting Level

3/22/2023

2 years ago

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

Contaminant Details

perfluorotridecanoic acid (4)

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.007 µg/L

Below Reporting Level

3/18/2024

18 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.007 µg/L

Below Reporting Level

9/20/2023

24 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.007 µg/L

Below Reporting Level

8/30/2023

25 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.007 µg/L

Below Reporting Level

3/22/2023

2 years ago

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

Contaminant Details

perfluoroundecanoic acid (4)

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.002 µg/L

Below Reporting Level

12/18/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.002 µg/L

Below Reporting Level

12/13/2023

21 months ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.002 µg/L

Below Reporting Level

6/19/2023

2 years ago

0.42 MG GST

HARRIS COUNTY MUD 183, WP1 ℹ️

<0.002 µg/L

Below Reporting Level

3/22/2023

2 years ago

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

Contaminant Details

profenofos (4)

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.3 µg/L

Below Reporting Level

11/6/2019

5 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.3 µg/L

Below Reporting Level

9/9/2019

6 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.3 µg/L

Below Reporting Level

5/8/2019

6 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.3 µg/L

Below Reporting Level

3/19/2019

6 years ago

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

Contaminant Details

quinoline (4)

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.02 µg/L

Below Reporting Level

11/6/2019

5 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.02 µg/L

Below Reporting Level

9/9/2019

6 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.02 µg/L

Below Reporting Level

5/8/2019

6 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.02 µg/L

Below Reporting Level

3/19/2019

6 years ago

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

Contaminant Details

tebuconazole (4)

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.2 µg/L

Below Reporting Level

11/6/2019

5 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.2 µg/L

Below Reporting Level

9/9/2019

6 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.2 µg/L

Below Reporting Level

5/8/2019

6 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.2 µg/L

Below Reporting Level

3/19/2019

6 years ago

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

Contaminant Details

Total Permethrin (4)

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.04 µg/L

Below Reporting Level

11/6/2019

5 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.04 µg/L

Below Reporting Level

9/9/2019

6 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.04 µg/L

Below Reporting Level

5/8/2019

6 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.04 µg/L

Below Reporting Level

3/19/2019

6 years ago

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

Contaminant Details

tribufos (4)

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.07 µg/L

Below Reporting Level

11/6/2019

5 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.07 µg/L

Below Reporting Level

9/9/2019

6 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.07 µg/L

Below Reporting Level

5/8/2019

6 years ago

EP001 17926 Valley Knoll

Sampling Station ℹ️

<0.07 µg/L

Below Reporting Level

3/19/2019

6 years ago

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

Contaminant Details

Contaminants

1-butanol (4)

11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (4)

1H,1H,2H,2H-perfluorodecane sulfonic acid (4)

1H,1H,2H,2H-perfluorohexane sulfonic acid (4)

1H,1H,2H,2H-perfluorooctane sulfonic acid (4)

2-methoxyethanol (4)

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

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

9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (4)

alpha-hexachlorocyclohexane (4)

Butylated Hydroxyanisole (4)

chlorpyrifos (4)

dimethipin (4)

ethoprop (4)

Germanium (4)

HAA5 (five regulated haloacetic acids) (8)

HAA6Br (six brominated haloacetic acids) (8)

HAA9 (nine haloacetic acids) (8)

hexafluoropropylene oxide dimer acid (GenX) (4)

lithium (4)

Manganese (4)

N-ethyl perfluorooctanesulfonamidoacetic acid (4)

N-methyl perfluorooctanesulfonamidoacetic acid (4)

nonafluoro-3,6-dioxaheptanoic acid (4)

o-toluidine (4)

oxyfluorfen (4)

perfluoro(2-ethoxyethane)sulfonic acid (4)

perfluoro-3-methoxypropanoic acid (4)

perfluoro-4-methoxybutanoic acid (4)

perfluorobutanesulfonic acid (4)

perfluorobutanoic acid (4)

perfluorodecanoic acid (4)

perfluorododecanoic acid (4)

perfluoroheptanesulfonic acid (4)

perfluoroheptanoic acid (4)

perfluorohexanesulfonic acid (4)

perfluorohexanoic acid (4)

perfluorononanoic acid (4)

perfluorooctanesulfonic acid (4)

perfluorooctanoic acid (4)

perfluoropentanesulfonic acid (4)

perfluoropentanoic acid (4)

perfluorotetradecanoic acid (4)

perfluorotridecanoic acid (4)

perfluoroundecanoic acid (4)

profenofos (4)

quinoline (4)

tebuconazole (4)

Total Permethrin (4)

tribufos (4)

Sampling Facilities

HARRIS COUNTY MUD 183, WP1 Surface Water (SW)

Sampling Station Multiple Sources (MX)

Distribution System Multiple Sources (MX)

FAQ

Is Harris County MUD #183 tap water safe to drink?

When was Harris County MUD #183 last tested for water contamination?

HARRIS COUNTY MUD 183, WP1
Surface Water (SW)

Sampling Station
Multiple Sources (MX)

Distribution System
Multiple Sources (MX)