Westborough County Water District (CA) Water Quality

Westborough County Water District is a large public water system in EPA region 9 that provides tap water for the 94080 zip codes. It has 2 facilities where the water supply was tested for 53 chemical contaminants that impact tap water quality and human health.

The maximum reported level of HAA5 (five regulated haloacetic acids) was 14.55 µg/L. The maximum reported level of Manganese was 3.8 µg/L. There were 2 contamintants found in the Westborough County Water District water supply at levels that were above the minimum reporting level.

Contaminants

1-butanol (4)

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<2 µg/L

Below Reporting Level

12/12/2018

6 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<2 µg/L

Below Reporting Level

9/19/2018

6 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<2 µg/L

Below Reporting Level

6/13/2018

7 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<2 µg/L

Below Reporting Level

3/12/2018

7 years ago

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

Contaminant Details

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

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.005 µg/L

Below Reporting Level

12/11/2024

8 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.005 µg/L

Below Reporting Level

9/11/2024

11 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.005 µg/L

Below Reporting Level

6/18/2024

14 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.005 µg/L

Below Reporting Level

3/11/2024

17 months ago

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

Contaminant Details

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

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.005 µg/L

Below Reporting Level

12/11/2024

8 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.005 µg/L

Below Reporting Level

9/11/2024

11 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.005 µg/L

Below Reporting Level

6/18/2024

14 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.005 µg/L

Below Reporting Level

3/11/2024

17 months ago

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

Contaminant Details

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

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

12/11/2024

8 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

9/11/2024

11 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

6/18/2024

14 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

17 months ago

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

Contaminant Details

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

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.005 µg/L

Below Reporting Level

12/11/2024

8 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.005 µg/L

Below Reporting Level

9/11/2024

11 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.005 µg/L

Below Reporting Level

6/18/2024

14 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.005 µg/L

Below Reporting Level

3/11/2024

17 months ago

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

Contaminant Details

2-methoxyethanol (4)

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.4 µg/L

Below Reporting Level

12/12/2018

6 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.4 µg/L

Below Reporting Level

9/19/2018

6 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.4 µg/L

Below Reporting Level

6/13/2018

7 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.4 µg/L

Below Reporting Level

3/12/2018

7 years ago

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

Contaminant Details

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

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.5 µg/L

Below Reporting Level

12/12/2018

6 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.5 µg/L

Below Reporting Level

9/19/2018

6 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.5 µg/L

Below Reporting Level

6/13/2018

7 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.5 µg/L

Below Reporting Level

3/12/2018

7 years ago

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

Contaminant Details

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

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

12/11/2024

8 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

9/11/2024

11 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

6/18/2024

14 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

17 months ago

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

Contaminant Details

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

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.002 µg/L

Below Reporting Level

12/11/2024

8 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.002 µg/L

Below Reporting Level

9/11/2024

11 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.002 µg/L

Below Reporting Level

6/18/2024

14 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.002 µg/L

Below Reporting Level

3/11/2024

17 months ago

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

Contaminant Details

alpha-hexachlorocyclohexane (4)

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.01 µg/L

Below Reporting Level

12/12/2018

6 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.01 µg/L

Below Reporting Level

9/19/2018

6 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.01 µg/L

Below Reporting Level

6/13/2018

7 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.01 µg/L

Below Reporting Level

3/12/2018

7 years ago

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

Contaminant Details

anatoxin-a (8)

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.03 µg/L

Below Reporting Level

9/19/2018

6 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.03 µg/L

Below Reporting Level

9/5/2018

6 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.03 µg/L

Below Reporting Level

8/20/2018

7 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.03 µg/L

Below Reporting Level

8/1/2018

7 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.03 µg/L

Below Reporting Level

7/18/2018

7 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.03 µg/L

Below Reporting Level

7/5/2018

7 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.03 µg/L

Below Reporting Level

6/19/2018

7 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.03 µg/L

Below Reporting Level

6/13/2018

7 years ago

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

Contaminant Details

Butylated Hydroxyanisole (4)

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.03 µg/L

Below Reporting Level

12/12/2018

6 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.03 µg/L

Below Reporting Level

9/19/2018

6 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.03 µg/L

Below Reporting Level

8/27/2018

7 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.03 µg/L

Below Reporting Level

3/12/2018

7 years ago

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

Contaminant Details

chlorpyrifos (4)

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.03 µg/L

Below Reporting Level

12/12/2018

6 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.03 µg/L

Below Reporting Level

9/19/2018

6 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.03 µg/L

Below Reporting Level

6/13/2018

7 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.03 µg/L

Below Reporting Level

3/12/2018

7 years ago

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

Contaminant Details

cylindrospermopsin (8)

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.09 µg/L

Below Reporting Level

9/19/2018

6 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.09 µg/L

Below Reporting Level

9/5/2018

6 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.09 µg/L

Below Reporting Level

8/20/2018

7 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.09 µg/L

Below Reporting Level

8/1/2018

7 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.09 µg/L

Below Reporting Level

7/18/2018

7 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.09 µg/L

Below Reporting Level

7/5/2018

7 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.09 µg/L

Below Reporting Level

6/19/2018

7 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.09 µg/L

Below Reporting Level

6/13/2018

7 years ago

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

Contaminant Details

dimethipin (4)

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.2 µg/L

Below Reporting Level

12/12/2018

6 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.2 µg/L

Below Reporting Level

9/19/2018

6 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.2 µg/L

Below Reporting Level

6/13/2018

7 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.2 µg/L

Below Reporting Level

3/12/2018

7 years ago

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

Contaminant Details

ethoprop (4)

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.03 µg/L

Below Reporting Level

12/12/2018

6 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.03 µg/L

Below Reporting Level

9/19/2018

6 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.03 µg/L

Below Reporting Level

6/13/2018

7 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.03 µg/L

Below Reporting Level

3/12/2018

7 years ago

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

Contaminant Details

Germanium (4)

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.3 µg/L

Below Reporting Level

12/12/2018

6 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.3 µg/L

Below Reporting Level

9/19/2018

6 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.3 µg/L

Below Reporting Level

6/13/2018

7 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.3 µg/L

Below Reporting Level

3/12/2018

7 years ago

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

Contaminant Details

HAA5 (five regulated haloacetic acids) (16)

3803 Radburn Drive - DBP Location

Distribution System ℹ️

8.97 µg/L

Meets Reporting Threshold

12/12/2018

6 years ago

3774 Carter Drive - DBP Location

Distribution System ℹ️

8.65 µg/L

Meets Reporting Threshold

12/12/2018

6 years ago

502 Avalon Drive - DBP Location

Distribution System ℹ️

5.99 µg/L

Meets Reporting Threshold

12/12/2018

6 years ago

2356 Shannon Drive - DBP Location

Distribution System ℹ️

5.19 µg/L

Meets Reporting Threshold

12/12/2018

6 years ago

2356 Shannon Drive - DBP Location

Distribution System ℹ️

14.55 µg/L

Meets Reporting Threshold

9/19/2018

6 years ago

3803 Radburn Drive - DBP Location

Distribution System ℹ️

13.36 µg/L

Meets Reporting Threshold

9/19/2018

6 years ago

3774 Carter Drive - DBP Location

Distribution System ℹ️

10.8 µg/L

Meets Reporting Threshold

9/19/2018

6 years ago

502 Avalon Drive - DBP Location

Distribution System ℹ️

6.57 µg/L

Meets Reporting Threshold

9/19/2018

6 years ago

3774 Carter Drive - DBP Location

Distribution System ℹ️

11.39 µg/L

Meets Reporting Threshold

6/13/2018

7 years ago

502 Avalon Drive - DBP Location

Distribution System ℹ️

10.71 µg/L

Meets Reporting Threshold

6/13/2018

7 years ago

3803 Radburn Drive - DBP Location

Distribution System ℹ️

10.62 µg/L

Meets Reporting Threshold

6/13/2018

7 years ago

2356 Shannon Drive - DBP Location

Distribution System ℹ️

10.53 µg/L

Meets Reporting Threshold

6/13/2018

7 years ago

3803 Radburn Drive - DBP Location

Distribution System ℹ️

9.74 µg/L

Meets Reporting Threshold

3/12/2018

7 years ago

3774 Carter Drive - DBP Location

Distribution System ℹ️

7.68 µg/L

Meets Reporting Threshold

3/12/2018

7 years ago

502 Avalon Drive - DBP Location

Distribution System ℹ️

7.08 µg/L

Meets Reporting Threshold

3/12/2018

7 years ago

2356 Shannon Drive - DBP Location

Distribution System ℹ️

6.8 µg/L

Meets Reporting Threshold

3/12/2018

7 years ago

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

Contaminant Details

HAA6Br (six brominated haloacetic acids) (16)

3774 Carter Drive - DBP Location

Distribution System ℹ️

4.05 µg/L

12/12/2018

6 years ago

3803 Radburn Drive - DBP Location

Distribution System ℹ️

4.03 µg/L

12/12/2018

6 years ago

502 Avalon Drive - DBP Location

Distribution System ℹ️

4.01 µg/L

12/12/2018

6 years ago

2356 Shannon Drive - DBP Location

Distribution System ℹ️

3.78 µg/L

12/12/2018

6 years ago

3803 Radburn Drive - DBP Location

Distribution System ℹ️

7.21 µg/L

9/19/2018

6 years ago

2356 Shannon Drive - DBP Location

Distribution System ℹ️

7.07 µg/L

9/19/2018

6 years ago

502 Avalon Drive - DBP Location

Distribution System ℹ️

7.03 µg/L

9/19/2018

6 years ago

3774 Carter Drive - DBP Location

Distribution System ℹ️

4.7 µg/L

9/19/2018

6 years ago

3774 Carter Drive - DBP Location

Distribution System ℹ️

6.26 µg/L

6/13/2018

7 years ago

2356 Shannon Drive - DBP Location

Distribution System ℹ️

6.23 µg/L

6/13/2018

7 years ago

3803 Radburn Drive - DBP Location

Distribution System ℹ️

6.22 µg/L

6/13/2018

7 years ago

502 Avalon Drive - DBP Location

Distribution System ℹ️

6.11 µg/L

6/13/2018

7 years ago

3803 Radburn Drive - DBP Location

Distribution System ℹ️

6.04 µg/L

3/12/2018

7 years ago

502 Avalon Drive - DBP Location

Distribution System ℹ️

5.88 µg/L

3/12/2018

7 years ago

3774 Carter Drive - DBP Location

Distribution System ℹ️

5.88 µg/L

3/12/2018

7 years ago

2356 Shannon Drive - DBP Location

Distribution System ℹ️

5.8 µg/L

3/12/2018

7 years ago

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

Contaminant Details

HAA9 (nine haloacetic acids) (16)

3803 Radburn Drive - DBP Location

Distribution System ℹ️

12.5 µg/L

12/12/2018

6 years ago

3774 Carter Drive - DBP Location

Distribution System ℹ️

12.2 µg/L

12/12/2018

6 years ago

502 Avalon Drive - DBP Location

Distribution System ℹ️

9.52 µg/L

12/12/2018

6 years ago

2356 Shannon Drive - DBP Location

Distribution System ℹ️

8.52 µg/L

12/12/2018

6 years ago

2356 Shannon Drive - DBP Location

Distribution System ℹ️

21.07 µg/L

9/19/2018

6 years ago

3803 Radburn Drive - DBP Location

Distribution System ℹ️

20.01 µg/L

9/19/2018

6 years ago

3774 Carter Drive - DBP Location

Distribution System ℹ️

14.8 µg/L

9/19/2018

6 years ago

502 Avalon Drive - DBP Location

Distribution System ℹ️

13.03 µg/L

9/19/2018

6 years ago

3774 Carter Drive - DBP Location

Distribution System ℹ️

16.66 µg/L

6/13/2018

7 years ago

3803 Radburn Drive - DBP Location

Distribution System ℹ️

15.92 µg/L

6/13/2018

7 years ago

502 Avalon Drive - DBP Location

Distribution System ℹ️

15.91 µg/L

6/13/2018

7 years ago

2356 Shannon Drive - DBP Location

Distribution System ℹ️

15.83 µg/L

6/13/2018

7 years ago

3803 Radburn Drive - DBP Location

Distribution System ℹ️

14.94 µg/L

3/12/2018

7 years ago

3774 Carter Drive - DBP Location

Distribution System ℹ️

12.78 µg/L

3/12/2018

7 years ago

502 Avalon Drive - DBP Location

Distribution System ℹ️

12.18 µg/L

3/12/2018

7 years ago

2356 Shannon Drive - DBP Location

Distribution System ℹ️

11.8 µg/L

3/12/2018

7 years ago

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

Contaminant Details

hexafluoropropylene oxide dimer acid (GenX) (4)

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.005 µg/L

Below Reporting Level

12/11/2024

8 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.005 µg/L

Below Reporting Level

9/11/2024

11 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.005 µg/L

Below Reporting Level

6/18/2024

14 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.005 µg/L

Below Reporting Level

3/11/2024

17 months ago

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

Contaminant Details

lithium (4)

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<9 µg/L

Below Reporting Level

12/11/2024

8 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<9 µg/L

Below Reporting Level

9/11/2024

11 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<9 µg/L

Below Reporting Level

6/18/2024

14 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<9 µg/L

Below Reporting Level

3/11/2024

17 months ago

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

Contaminant Details

Manganese (4)

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.4 µg/L

Below Reporting Level

12/12/2018

6 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.4 µg/L

Below Reporting Level

9/19/2018

6 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

0.43 µg/L

Meets Reporting Threshold

6/13/2018

7 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

3.8 µg/L

Meets Reporting Threshold

3/12/2018

7 years ago

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

Contaminant Details

N-ethyl perfluorooctanesulfonamidoacetic acid (4)

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.005 µg/L

Below Reporting Level

12/11/2024

8 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.005 µg/L

Below Reporting Level

9/11/2024

11 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.005 µg/L

Below Reporting Level

6/18/2024

14 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.005 µg/L

Below Reporting Level

3/11/2024

17 months ago

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

Contaminant Details

N-methyl perfluorooctanesulfonamidoacetic acid (4)

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.006 µg/L

Below Reporting Level

12/11/2024

8 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.006 µg/L

Below Reporting Level

9/11/2024

11 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.006 µg/L

Below Reporting Level

6/18/2024

14 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.006 µg/L

Below Reporting Level

3/11/2024

17 months ago

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

Contaminant Details

nonafluoro-3,6-dioxaheptanoic acid (4)

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.02 µg/L

Below Reporting Level

12/11/2024

8 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.02 µg/L

Below Reporting Level

9/11/2024

11 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.02 µg/L

Below Reporting Level

6/18/2024

14 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.02 µg/L

Below Reporting Level

3/11/2024

17 months ago

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

Contaminant Details

o-toluidine (4)

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.007 µg/L

Below Reporting Level

12/12/2018

6 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.007 µg/L

Below Reporting Level

9/19/2018

6 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.007 µg/L

Below Reporting Level

8/27/2018

7 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.007 µg/L

Below Reporting Level

3/12/2018

7 years ago

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

Contaminant Details

oxyfluorfen (4)

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.05 µg/L

Below Reporting Level

12/12/2018

6 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.05 µg/L

Below Reporting Level

9/19/2018

6 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.05 µg/L

Below Reporting Level

6/13/2018

7 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.05 µg/L

Below Reporting Level

3/12/2018

7 years ago

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

Contaminant Details

perfluoro(2-ethoxyethane)sulfonic acid (4)

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

12/11/2024

8 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

9/11/2024

11 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

6/18/2024

14 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

17 months ago

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

Contaminant Details

perfluoro-3-methoxypropanoic acid (4)

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.004 µg/L

Below Reporting Level

12/11/2024

8 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.004 µg/L

Below Reporting Level

9/11/2024

11 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.004 µg/L

Below Reporting Level

6/18/2024

14 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.004 µg/L

Below Reporting Level

3/11/2024

17 months ago

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

Contaminant Details

perfluoro-4-methoxybutanoic acid (4)

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

12/11/2024

8 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

9/11/2024

11 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

6/18/2024

14 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

17 months ago

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

Contaminant Details

perfluorobutanesulfonic acid (4)

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

12/11/2024

8 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

9/11/2024

11 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

6/18/2024

14 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

17 months ago

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

Contaminant Details

perfluorobutanoic acid (4)

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.005 µg/L

Below Reporting Level

12/11/2024

8 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.005 µg/L

Below Reporting Level

9/11/2024

11 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.005 µg/L

Below Reporting Level

6/18/2024

14 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.005 µg/L

Below Reporting Level

3/11/2024

17 months ago

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

Contaminant Details

perfluorodecanoic acid (4)

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

12/11/2024

8 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

9/11/2024

11 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

6/18/2024

14 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

17 months ago

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

Contaminant Details

perfluorododecanoic acid (4)

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

12/11/2024

8 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

9/11/2024

11 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

6/18/2024

14 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

17 months ago

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

Contaminant Details

perfluoroheptanesulfonic acid (4)

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

12/11/2024

8 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

9/11/2024

11 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

6/18/2024

14 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

17 months ago

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

Contaminant Details

perfluoroheptanoic acid (4)

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

12/11/2024

8 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

9/11/2024

11 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

6/18/2024

14 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

17 months ago

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

Contaminant Details

perfluorohexanesulfonic acid (4)

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

12/11/2024

8 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

9/11/2024

11 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

6/18/2024

14 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

17 months ago

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

Contaminant Details

perfluorohexanoic acid (4)

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

12/11/2024

8 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

9/11/2024

11 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

6/18/2024

14 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

17 months ago

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

Contaminant Details

perfluorononanoic acid (4)

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.004 µg/L

Below Reporting Level

12/11/2024

8 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.004 µg/L

Below Reporting Level

9/11/2024

11 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.004 µg/L

Below Reporting Level

6/18/2024

14 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.004 µg/L

Below Reporting Level

3/11/2024

17 months ago

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

Contaminant Details

perfluorooctanesulfonic acid (4)

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.004 µg/L

Below Reporting Level

12/11/2024

8 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.004 µg/L

Below Reporting Level

9/11/2024

11 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.004 µg/L

Below Reporting Level

6/18/2024

14 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.004 µg/L

Below Reporting Level

3/11/2024

17 months ago

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

Contaminant Details

perfluorooctanoic acid (4)

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.004 µg/L

Below Reporting Level

12/11/2024

8 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.004 µg/L

Below Reporting Level

9/11/2024

11 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.004 µg/L

Below Reporting Level

6/18/2024

14 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.004 µg/L

Below Reporting Level

3/11/2024

17 months ago

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

Contaminant Details

perfluoropentanesulfonic acid (4)

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.004 µg/L

Below Reporting Level

12/11/2024

8 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.004 µg/L

Below Reporting Level

9/11/2024

11 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.004 µg/L

Below Reporting Level

6/18/2024

14 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.004 µg/L

Below Reporting Level

3/11/2024

17 months ago

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

Contaminant Details

perfluoropentanoic acid (4)

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

12/11/2024

8 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

9/11/2024

11 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

6/18/2024

14 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.003 µg/L

Below Reporting Level

3/11/2024

17 months ago

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

Contaminant Details

perfluorotetradecanoic acid (4)

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.008 µg/L

Below Reporting Level

12/11/2024

8 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.008 µg/L

Below Reporting Level

9/11/2024

11 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.008 µg/L

Below Reporting Level

6/18/2024

14 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.008 µg/L

Below Reporting Level

3/11/2024

17 months ago

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

Contaminant Details

perfluorotridecanoic acid (4)

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.007 µg/L

Below Reporting Level

12/11/2024

8 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.007 µg/L

Below Reporting Level

9/11/2024

11 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.007 µg/L

Below Reporting Level

6/18/2024

14 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.007 µg/L

Below Reporting Level

3/11/2024

17 months ago

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

Contaminant Details

perfluoroundecanoic acid (4)

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.002 µg/L

Below Reporting Level

12/11/2024

8 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.002 µg/L

Below Reporting Level

9/11/2024

11 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.002 µg/L

Below Reporting Level

6/18/2024

14 months ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.002 µg/L

Below Reporting Level

3/11/2024

17 months ago

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

Contaminant Details

profenofos (4)

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.3 µg/L

Below Reporting Level

12/12/2018

6 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.3 µg/L

Below Reporting Level

9/19/2018

6 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.3 µg/L

Below Reporting Level

6/13/2018

7 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.3 µg/L

Below Reporting Level

3/12/2018

7 years ago

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

Contaminant Details

quinoline (4)

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.02 µg/L

Below Reporting Level

12/12/2018

6 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.02 µg/L

Below Reporting Level

9/19/2018

6 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.02 µg/L

Below Reporting Level

8/27/2018

7 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.02 µg/L

Below Reporting Level

3/12/2018

7 years ago

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

Contaminant Details

tebuconazole (4)

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.2 µg/L

Below Reporting Level

12/12/2018

6 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.2 µg/L

Below Reporting Level

9/19/2018

6 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.2 µg/L

Below Reporting Level

6/13/2018

7 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.2 µg/L

Below Reporting Level

3/12/2018

7 years ago

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

Contaminant Details

total microcystins (8)

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.3 µg/L

Below Reporting Level

9/19/2018

6 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.3 µg/L

Below Reporting Level

9/5/2018

6 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.3 µg/L

Below Reporting Level

8/20/2018

7 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.3 µg/L

Below Reporting Level

8/1/2018

7 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.3 µg/L

Below Reporting Level

7/18/2018

7 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.3 µg/L

Below Reporting Level

7/5/2018

7 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.3 µg/L

Below Reporting Level

6/19/2018

7 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.3 µg/L

Below Reporting Level

6/13/2018

7 years ago

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

Contaminant Details

Total Permethrin (4)

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.04 µg/L

Below Reporting Level

12/12/2018

6 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.04 µg/L

Below Reporting Level

9/19/2018

6 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.04 µg/L

Below Reporting Level

6/13/2018

7 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.04 µg/L

Below Reporting Level

3/12/2018

7 years ago

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

Contaminant Details

tribufos (4)

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.07 µg/L

Below Reporting Level

12/12/2018

6 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.07 µg/L

Below Reporting Level

9/19/2018

6 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.07 µg/L

Below Reporting Level

6/13/2018

7 years ago

Turn Out Entry Point Location

Entry Points to Distribution System ℹ️

<0.07 µg/L

Below Reporting Level

3/12/2018

7 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)

anatoxin-a (8)

Butylated Hydroxyanisole (4)

chlorpyrifos (4)

cylindrospermopsin (8)

dimethipin (4)

ethoprop (4)

Germanium (4)

HAA5 (five regulated haloacetic acids) (16)

HAA6Br (six brominated haloacetic acids) (16)

HAA9 (nine haloacetic acids) (16)

hexafluoropropylene oxide dimer acid (GenX) (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 microcystins (8)

Total Permethrin (4)

tribufos (4)

Sampling Facilities

Entry Points to Distribution System Surface Water (SW)

Distribution System Surface Water (SW)

FAQ

Is Westborough County Water District tap water safe to drink?

When was Westborough County Water District last tested for water contamination?

Entry Points to Distribution System
Surface Water (SW)

Distribution System
Surface Water (SW)