City of Chesapeake - Western Branch (VA) Water Quality

City of Chesapeake - Western Branch is a large public water system in EPA region 3 that provides tap water for the 23320 - 23325 zip codes. It has 3 facilities where the water supply was tested for 68 chemical contaminants that impact tap water quality and human health.

The maximum reported level of HAA5 (five regulated haloacetic acids) was 53.324 µg/L. The maximum reported level of Manganese was 21.4 µg/L. There were 2 contamintants found in the City of Chesapeake - Western Branch water supply at levels that were above the minimum reporting level.

Table of Contents
Contaminants
Facilities
FAQ

Contaminants

Jump To Contaminant
1,1-dichloroethane (4)
1,2,3-trichloropropane (4)
1,3-butadiene (4)
1,4-dioxane (4)
1-butanol (4)
11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (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)
bromochloromethane (Halon 1011) (4)
bromomethane (4)
Butylated Hydroxyanisole (4)
chlorate (8)
chlorodifluoromethane (HCFC-22) (4)
chloromethane (4)
chlorpyrifos (4)
chromium (8)
chromium-6 (8)
cobalt (8)
cylindrospermopsin (8)
dimethipin (4)
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)
molybdenum (8)
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 (8)
perfluorobutanoic acid (4)
perfluorodecanoic acid (4)
perfluorododecanoic acid (4)
perfluoroheptanesulfonic acid (4)
perfluoroheptanoic acid (8)
perfluorohexanesulfonic acid (8)
perfluorohexanoic acid (4)
perfluorononanoic acid (8)
perfluorooctanesulfonic acid (8)
perfluorooctanoic acid (8)
perfluoropentanesulfonic acid (4)
perfluoropentanoic acid (4)
perfluorotetradecanoic acid (4)
perfluorotridecanoic acid (4)
perfluoroundecanoic acid (4)
profenofos (4)
quinoline (4)
strontium (8)
tebuconazole (4)
total microcystins (8)
Total Permethrin (4)
tribufos (4)
vanadium (8)

1,1-dichloroethane (4)

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.03 µg/L

Below Reporting Level

4/15/2014

11 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.03 µg/L

Below Reporting Level

1/14/2014

12 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.03 µg/L

Below Reporting Level

10/8/2013

12 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.03 µg/L

Below Reporting Level

7/29/2013

12 years ago

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

Contaminant Details

1,2,3-trichloropropane (4)

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.03 µg/L

Below Reporting Level

4/15/2014

11 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.03 µg/L

Below Reporting Level

1/14/2014

12 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.03 µg/L

Below Reporting Level

10/8/2013

12 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.03 µg/L

Below Reporting Level

7/29/2013

12 years ago

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

Contaminant Details

1,3-butadiene (4)

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.1 µg/L

Below Reporting Level

4/15/2014

11 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.1 µg/L

Below Reporting Level

1/14/2014

12 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.1 µg/L

Below Reporting Level

10/8/2013

12 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.1 µg/L

Below Reporting Level

7/29/2013

12 years ago

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

Contaminant Details

1,4-dioxane (4)

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.07 µg/L

Below Reporting Level

4/15/2014

11 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

0.11 µg/L

⚠️ Exceeds Reporting Level of 0.07 µg/L by 0.04 µg/L

1/14/2014

12 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.07 µg/L

Below Reporting Level

10/8/2013

12 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.07 µg/L

Below Reporting Level

7/17/2013

12 years ago

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

Contaminant Details

1-butanol (4)

Entry Point

Western Branch Entry Point ℹ️

<2 µg/L

Below Reporting Level

12/3/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<2 µg/L

Below Reporting Level

9/4/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<2 µg/L

Below Reporting Level

6/4/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<2 µg/L

Below Reporting Level

3/5/2018

7 years ago

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

Contaminant Details

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

Entry Point

Western Branch Entry Point ℹ️

<0.005 µg/L

Below Reporting Level

1/8/2024

25 months ago

Entry Point

Western Branch Entry Point ℹ️

<0.005 µg/L

Below Reporting Level

11/14/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.005 µg/L

Below Reporting Level

8/22/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.005 µg/L

Below Reporting Level

4/10/2023

2 years ago

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

Contaminant Details

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

Entry Point

Western Branch Entry Point ℹ️

<0.005 µg/L

Below Reporting Level

1/8/2024

25 months ago

Entry Point

Western Branch Entry Point ℹ️

<0.005 µg/L

Below Reporting Level

11/14/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.005 µg/L

Below Reporting Level

8/22/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.005 µg/L

Below Reporting Level

4/10/2023

2 years ago

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

Contaminant Details

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

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

1/8/2024

25 months ago

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

11/14/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

8/22/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

4/10/2023

2 years ago

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

Contaminant Details

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

Entry Point

Western Branch Entry Point ℹ️

<0.005 µg/L

Below Reporting Level

1/8/2024

25 months ago

Entry Point

Western Branch Entry Point ℹ️

<0.005 µg/L

Below Reporting Level

11/14/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.005 µg/L

Below Reporting Level

8/22/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.005 µg/L

Below Reporting Level

4/10/2023

2 years ago

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

Contaminant Details

2-methoxyethanol (4)

Entry Point

Western Branch Entry Point ℹ️

<0.4 µg/L

Below Reporting Level

12/3/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.4 µg/L

Below Reporting Level

9/4/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.4 µg/L

Below Reporting Level

6/4/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.4 µg/L

Below Reporting Level

3/5/2018

7 years ago

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

Contaminant Details

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

Entry Point

Western Branch Entry Point ℹ️

<0.5 µg/L

Below Reporting Level

12/3/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.5 µg/L

Below Reporting Level

9/4/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.5 µg/L

Below Reporting Level

6/4/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.5 µg/L

Below Reporting Level

3/5/2018

7 years ago

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

Contaminant Details

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

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

1/8/2024

25 months ago

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

11/14/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

8/22/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

4/10/2023

2 years ago

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

Contaminant Details

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

Entry Point

Western Branch Entry Point ℹ️

<0.002 µg/L

Below Reporting Level

1/8/2024

25 months ago

Entry Point

Western Branch Entry Point ℹ️

<0.002 µg/L

Below Reporting Level

11/14/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.002 µg/L

Below Reporting Level

8/22/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.002 µg/L

Below Reporting Level

4/10/2023

2 years ago

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

Contaminant Details

alpha-hexachlorocyclohexane (4)

Entry Point

Western Branch Entry Point ℹ️

<0.01 µg/L

Below Reporting Level

12/3/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.01 µg/L

Below Reporting Level

11/30/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.01 µg/L

Below Reporting Level

7/23/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.01 µg/L

Below Reporting Level

3/5/2018

7 years ago

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

Contaminant Details

anatoxin-a (8)

Entry Point

Western Branch Entry Point ℹ️

<0.03 µg/L

Below Reporting Level

6/18/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.03 µg/L

Below Reporting Level

6/4/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.03 µg/L

Below Reporting Level

5/21/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.03 µg/L

Below Reporting Level

5/7/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.03 µg/L

Below Reporting Level

4/16/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.03 µg/L

Below Reporting Level

4/2/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.03 µg/L

Below Reporting Level

3/19/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.03 µg/L

Below Reporting Level

3/5/2018

7 years ago

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

Contaminant Details

bromochloromethane (Halon 1011) (4)

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.06 µg/L

Below Reporting Level

4/15/2014

11 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.06 µg/L

Below Reporting Level

1/14/2014

12 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.06 µg/L

Below Reporting Level

10/8/2013

12 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.06 µg/L

Below Reporting Level

7/29/2013

12 years ago

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

Contaminant Details

bromomethane (4)

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.2 µg/L

Below Reporting Level

4/15/2014

11 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.2 µg/L

Below Reporting Level

1/14/2014

12 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.2 µg/L

Below Reporting Level

10/8/2013

12 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.2 µg/L

Below Reporting Level

7/29/2013

12 years ago

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

Contaminant Details

Butylated Hydroxyanisole (4)

Entry Point

Western Branch Entry Point ℹ️

<0.03 µg/L

Below Reporting Level

1/28/2019

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.03 µg/L

Below Reporting Level

12/3/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.03 µg/L

Below Reporting Level

6/4/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.03 µg/L

Below Reporting Level

3/5/2018

7 years ago

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

Contaminant Details

chlorate (8)

Western Branch Entry Point - WBGT

Western Branch ℹ️

380 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 360 µg/L

4/15/2014

11 years ago

FS #12 - 4421 Taylor Road

Western Branch Distribution System ℹ️

280 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 260 µg/L

4/15/2014

11 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

170 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 150 µg/L

1/14/2014

12 years ago

FS #12 - 4421 Taylor Road

Western Branch Distribution System ℹ️

170 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 150 µg/L

1/14/2014

12 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

570 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 550 µg/L

10/8/2013

12 years ago

FS #12 - 4421 Taylor Road

Western Branch Distribution System ℹ️

520 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 500 µg/L

10/8/2013

12 years ago

FS #12 - 4421 Taylor Road

Western Branch Distribution System ℹ️

420 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 400 µg/L

7/17/2013

12 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

400 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 380 µg/L

7/17/2013

12 years ago

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

Contaminant Details

chlorodifluoromethane (HCFC-22) (4)

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.08 µg/L

Below Reporting Level

4/15/2014

11 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.08 µg/L

Below Reporting Level

1/14/2014

12 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.08 µg/L

Below Reporting Level

10/8/2013

12 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.08 µg/L

Below Reporting Level

7/29/2013

12 years ago

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

Contaminant Details

chloromethane (4)

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.2 µg/L

Below Reporting Level

4/15/2014

11 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.2 µg/L

Below Reporting Level

1/14/2014

12 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.2 µg/L

Below Reporting Level

10/8/2013

12 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.2 µg/L

Below Reporting Level

7/29/2013

12 years ago

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

Contaminant Details

chlorpyrifos (4)

Entry Point

Western Branch Entry Point ℹ️

<0.03 µg/L

Below Reporting Level

12/3/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.03 µg/L

Below Reporting Level

11/30/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.03 µg/L

Below Reporting Level

7/23/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.03 µg/L

Below Reporting Level

3/5/2018

7 years ago

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

Contaminant Details

chromium (8)

Western Branch Entry Point - WBGT

Western Branch ℹ️

0.5 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.3 µg/L

4/15/2014

11 years ago

FS #12 - 4421 Taylor Road

Western Branch Distribution System ℹ️

0.4 µg/L

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

4/15/2014

11 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

0.3 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.1 µg/L

1/14/2014

12 years ago

FS #12 - 4421 Taylor Road

Western Branch Distribution System ℹ️

0.3 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.1 µg/L

1/14/2014

12 years ago

FS #12 - 4421 Taylor Road

Western Branch Distribution System ℹ️

0.5 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.3 µg/L

10/8/2013

12 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

0.4 µg/L

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

10/8/2013

12 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

0.4 µg/L

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

7/17/2013

12 years ago

FS #12 - 4421 Taylor Road

Western Branch Distribution System ℹ️

0.4 µg/L

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

7/17/2013

12 years ago

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

Contaminant Details

chromium-6 (8)

Western Branch Entry Point - WBGT

Western Branch ℹ️

0.38 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.35 µg/L

4/15/2014

11 years ago

FS #12 - 4421 Taylor Road

Western Branch Distribution System ℹ️

0.38 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.35 µg/L

4/15/2014

11 years ago

FS #12 - 4421 Taylor Road

Western Branch Distribution System ℹ️

0.22 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.19 µg/L

1/14/2014

12 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

0.21 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.18 µg/L

1/14/2014

12 years ago

FS #12 - 4421 Taylor Road

Western Branch Distribution System ℹ️

0.3 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.27 µg/L

10/8/2013

12 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

0.28 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.25 µg/L

10/8/2013

12 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

0.32 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.29 µg/L

7/17/2013

12 years ago

FS #12 - 4421 Taylor Road

Western Branch Distribution System ℹ️

0.28 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.25 µg/L

7/17/2013

12 years ago

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

Contaminant Details

cobalt (8)

Western Branch Entry Point - WBGT

Western Branch ℹ️

<1 µg/L

Below Reporting Level

4/15/2014

11 years ago

FS #12 - 4421 Taylor Road

Western Branch Distribution System ℹ️

<1 µg/L

Below Reporting Level

4/15/2014

11 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<1 µg/L

Below Reporting Level

1/14/2014

12 years ago

FS #12 - 4421 Taylor Road

Western Branch Distribution System ℹ️

<1 µg/L

Below Reporting Level

1/14/2014

12 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<1 µg/L

Below Reporting Level

10/8/2013

12 years ago

FS #12 - 4421 Taylor Road

Western Branch Distribution System ℹ️

<1 µg/L

Below Reporting Level

10/8/2013

12 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<1 µg/L

Below Reporting Level

7/17/2013

12 years ago

FS #12 - 4421 Taylor Road

Western Branch Distribution System ℹ️

<1 µg/L

Below Reporting Level

7/17/2013

12 years ago

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

Contaminant Details

cylindrospermopsin (8)

Entry Point

Western Branch Entry Point ℹ️

<0.09 µg/L

Below Reporting Level

6/18/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.09 µg/L

Below Reporting Level

6/4/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.09 µg/L

Below Reporting Level

5/21/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.09 µg/L

Below Reporting Level

5/7/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.09 µg/L

Below Reporting Level

4/16/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.09 µg/L

Below Reporting Level

4/2/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.09 µg/L

Below Reporting Level

3/19/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.09 µg/L

Below Reporting Level

3/5/2018

7 years ago

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

Contaminant Details

dimethipin (4)

Entry Point

Western Branch Entry Point ℹ️

<0.2 µg/L

Below Reporting Level

12/3/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.2 µg/L

Below Reporting Level

11/30/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.2 µg/L

Below Reporting Level

7/23/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.2 µg/L

Below Reporting Level

3/5/2018

7 years ago

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

Contaminant Details

ethoprop (4)

Entry Point

Western Branch Entry Point ℹ️

<0.03 µg/L

Below Reporting Level

12/3/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.03 µg/L

Below Reporting Level

11/30/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.03 µg/L

Below Reporting Level

7/23/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.03 µg/L

Below Reporting Level

3/5/2018

7 years ago

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

Contaminant Details

Germanium (4)

Entry Point

Western Branch Entry Point ℹ️

<0.3 µg/L

Below Reporting Level

12/3/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.3 µg/L

Below Reporting Level

9/4/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.3 µg/L

Below Reporting Level

6/4/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.3 µg/L

Below Reporting Level

3/5/2018

7 years ago

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

Contaminant Details

HAA5 (five regulated haloacetic acids) (16)

4421 Taylor Rd. (Fire Station #12)

Western Branch Distribution System ℹ️

30.776 µg/L

⚠️ Exceeds 50% of Reference Level

12/3/2018

7 years ago

4005 Portsmouth Blvd. (Lukoil Gas Station)

Western Branch Distribution System ℹ️

30.663 µg/L

⚠️ Exceeds 50% of Reference Level

12/3/2018

7 years ago

4713 Elizabeth Harbor Dr. (WB Ground Tank)

Western Branch Distribution System ℹ️

29.725 µg/L

Meets Reporting Threshold

12/3/2018

7 years ago

4201 Hawksley Dr. (W. Branch Junior High School)

Western Branch Distribution System ℹ️

13.42 µg/L

Meets Reporting Threshold

12/3/2018

7 years ago

4713 Elizabeth Harbor Dr. (WB Ground Tank)

Western Branch Distribution System ℹ️

53.324 µg/L

❗ Exceeds 80% of Reference Level

9/4/2018

7 years ago

4421 Taylor Rd. (Fire Station #12)

Western Branch Distribution System ℹ️

52.567 µg/L

❗ Exceeds 80% of Reference Level

9/4/2018

7 years ago

4005 Portsmouth Blvd. (Lukoil Gas Station)

Western Branch Distribution System ℹ️

51.549 µg/L

❗ Exceeds 80% of Reference Level

9/4/2018

7 years ago

4201 Hawksley Dr. (W. Branch Junior High School)

Western Branch Distribution System ℹ️

14.46 µg/L

Meets Reporting Threshold

9/4/2018

7 years ago

4713 Elizabeth Harbor Dr. (WB Ground Tank)

Western Branch Distribution System ℹ️

40.526 µg/L

⚠️ Exceeds 50% of Reference Level

6/4/2018

7 years ago

4421 Taylor Rd. (Fire Station #12)

Western Branch Distribution System ℹ️

40.264 µg/L

⚠️ Exceeds 50% of Reference Level

6/4/2018

7 years ago

4005 Portsmouth Blvd. (Lukoil Gas Station)

Western Branch Distribution System ℹ️

39.708 µg/L

⚠️ Exceeds 50% of Reference Level

6/4/2018

7 years ago

4201 Hawksley Dr. (W. Branch Junior High School)

Western Branch Distribution System ℹ️

29.086 µg/L

Meets Reporting Threshold

6/4/2018

7 years ago

4421 Taylor Rd. (Fire Station #12)

Western Branch Distribution System ℹ️

22.053 µg/L

Meets Reporting Threshold

3/5/2018

7 years ago

4005 Portsmouth Blvd. (Lukoil Gas Station)

Western Branch Distribution System ℹ️

21.464 µg/L

Meets Reporting Threshold

3/5/2018

7 years ago

4713 Elizabeth Harbor Dr. (WB Ground Tank)

Western Branch Distribution System ℹ️

21.151 µg/L

Meets Reporting Threshold

3/5/2018

7 years ago

4201 Hawksley Dr. (W. Branch Junior High School)

Western Branch Distribution System ℹ️

16.87 µg/L

Meets Reporting Threshold

3/5/2018

7 years ago

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

Contaminant Details

HAA6Br (six brominated haloacetic acids) (16)

4713 Elizabeth Harbor Dr. (WB Ground Tank)

Western Branch Distribution System ℹ️

9.119 µg/L

12/3/2018

7 years ago

4421 Taylor Rd. (Fire Station #12)

Western Branch Distribution System ℹ️

8.733 µg/L

12/3/2018

7 years ago

4005 Portsmouth Blvd. (Lukoil Gas Station)

Western Branch Distribution System ℹ️

8.613 µg/L

12/3/2018

7 years ago

4201 Hawksley Dr. (W. Branch Junior High School)

Western Branch Distribution System ℹ️

4.318 µg/L

12/3/2018

7 years ago

4005 Portsmouth Blvd. (Lukoil Gas Station)

Western Branch Distribution System ℹ️

11.512 µg/L

9/4/2018

7 years ago

4713 Elizabeth Harbor Dr. (WB Ground Tank)

Western Branch Distribution System ℹ️

11.381 µg/L

9/4/2018

7 years ago

4421 Taylor Rd. (Fire Station #12)

Western Branch Distribution System ℹ️

11.328 µg/L

9/4/2018

7 years ago

4201 Hawksley Dr. (W. Branch Junior High School)

Western Branch Distribution System ℹ️

2.57 µg/L

9/4/2018

7 years ago

4713 Elizabeth Harbor Dr. (WB Ground Tank)

Western Branch Distribution System ℹ️

11.918 µg/L

6/4/2018

7 years ago

4421 Taylor Rd. (Fire Station #12)

Western Branch Distribution System ℹ️

11.521 µg/L

6/4/2018

7 years ago

4005 Portsmouth Blvd. (Lukoil Gas Station)

Western Branch Distribution System ℹ️

10.809 µg/L

6/4/2018

7 years ago

4201 Hawksley Dr. (W. Branch Junior High School)

Western Branch Distribution System ℹ️

7.884 µg/L

6/4/2018

7 years ago

4005 Portsmouth Blvd. (Lukoil Gas Station)

Western Branch Distribution System ℹ️

7.515 µg/L

3/5/2018

7 years ago

4421 Taylor Rd. (Fire Station #12)

Western Branch Distribution System ℹ️

7.471 µg/L

3/5/2018

7 years ago

4713 Elizabeth Harbor Dr. (WB Ground Tank)

Western Branch Distribution System ℹ️

6.914 µg/L

3/5/2018

7 years ago

4201 Hawksley Dr. (W. Branch Junior High School)

Western Branch Distribution System ℹ️

6.271 µg/L

3/5/2018

7 years ago

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

Contaminant Details

HAA9 (nine haloacetic acids) (16)

4421 Taylor Rd. (Fire Station #12)

Western Branch Distribution System ℹ️

39.133 µg/L

12/3/2018

7 years ago

4005 Portsmouth Blvd. (Lukoil Gas Station)

Western Branch Distribution System ℹ️

38.913 µg/L

12/3/2018

7 years ago

4713 Elizabeth Harbor Dr. (WB Ground Tank)

Western Branch Distribution System ℹ️

38.419 µg/L

12/3/2018

7 years ago

4201 Hawksley Dr. (W. Branch Junior High School)

Western Branch Distribution System ℹ️

17.738 µg/L

12/3/2018

7 years ago

4713 Elizabeth Harbor Dr. (WB Ground Tank)

Western Branch Distribution System ℹ️

64.281 µg/L

9/4/2018

7 years ago

4421 Taylor Rd. (Fire Station #12)

Western Branch Distribution System ℹ️

63.428 µg/L

9/4/2018

7 years ago

4005 Portsmouth Blvd. (Lukoil Gas Station)

Western Branch Distribution System ℹ️

62.612 µg/L

9/4/2018

7 years ago

4201 Hawksley Dr. (W. Branch Junior High School)

Western Branch Distribution System ℹ️

17.03 µg/L

9/4/2018

7 years ago

4713 Elizabeth Harbor Dr. (WB Ground Tank)

Western Branch Distribution System ℹ️

51.918 µg/L

6/4/2018

7 years ago

4421 Taylor Rd. (Fire Station #12)

Western Branch Distribution System ℹ️

51.321 µg/L

6/4/2018

7 years ago

4005 Portsmouth Blvd. (Lukoil Gas Station)

Western Branch Distribution System ℹ️

50.009 µg/L

6/4/2018

7 years ago

4201 Hawksley Dr. (W. Branch Junior High School)

Western Branch Distribution System ℹ️

36.584 µg/L

6/4/2018

7 years ago

4421 Taylor Rd. (Fire Station #12)

Western Branch Distribution System ℹ️

29.141 µg/L

3/5/2018

7 years ago

4005 Portsmouth Blvd. (Lukoil Gas Station)

Western Branch Distribution System ℹ️

28.585 µg/L

3/5/2018

7 years ago

4713 Elizabeth Harbor Dr. (WB Ground Tank)

Western Branch Distribution System ℹ️

27.704 µg/L

3/5/2018

7 years ago

4201 Hawksley Dr. (W. Branch Junior High School)

Western Branch Distribution System ℹ️

22.771 µg/L

3/5/2018

7 years ago

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

Contaminant Details

hexafluoropropylene oxide dimer acid (GenX) (4)

Entry Point

Western Branch Entry Point ℹ️

<0.005 µg/L

Below Reporting Level

1/8/2024

25 months ago

Entry Point

Western Branch Entry Point ℹ️

<0.005 µg/L

Below Reporting Level

11/14/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.005 µg/L

Below Reporting Level

8/22/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.005 µg/L

Below Reporting Level

4/10/2023

2 years ago

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

Contaminant Details

lithium (4)

Entry Point

Western Branch Entry Point ℹ️

<9 µg/L

Below Reporting Level

1/8/2024

25 months ago

Entry Point

Western Branch Entry Point ℹ️

<9 µg/L

Below Reporting Level

10/10/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<9 µg/L

Below Reporting Level

7/13/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<9 µg/L

Below Reporting Level

4/10/2023

2 years ago

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

Contaminant Details

Manganese (4)

Entry Point

Western Branch Entry Point ℹ️

2.85 µg/L

Meets Reporting Threshold

12/3/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

3.44 µg/L

Meets Reporting Threshold

9/4/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

4.03 µg/L

Meets Reporting Threshold

6/4/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

21.4 µg/L

Meets Reporting Threshold

3/5/2018

7 years ago

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

Contaminant Details

molybdenum (8)

FS #12 - 4421 Taylor Road

Western Branch Distribution System ℹ️

1.4 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 0.4 µg/L

4/15/2014

11 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

1.3 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 0.3 µg/L

4/15/2014

11 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

1.5 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 0.5 µg/L

1/14/2014

12 years ago

FS #12 - 4421 Taylor Road

Western Branch Distribution System ℹ️

1.4 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 0.4 µg/L

1/14/2014

12 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

1.7 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 0.7 µg/L

10/8/2013

12 years ago

FS #12 - 4421 Taylor Road

Western Branch Distribution System ℹ️

1.7 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 0.7 µg/L

10/8/2013

12 years ago

FS #12 - 4421 Taylor Road

Western Branch Distribution System ℹ️

1.7 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 0.7 µg/L

7/17/2013

12 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

1.6 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 0.6 µg/L

7/17/2013

12 years ago

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

Contaminant Details

N-ethyl perfluorooctanesulfonamidoacetic acid (4)

Entry Point

Western Branch Entry Point ℹ️

<0.005 µg/L

Below Reporting Level

1/8/2024

25 months ago

Entry Point

Western Branch Entry Point ℹ️

<0.005 µg/L

Below Reporting Level

10/10/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.005 µg/L

Below Reporting Level

8/22/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.005 µg/L

Below Reporting Level

4/10/2023

2 years ago

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

Contaminant Details

N-methyl perfluorooctanesulfonamidoacetic acid (4)

Entry Point

Western Branch Entry Point ℹ️

<0.006 µg/L

Below Reporting Level

1/8/2024

25 months ago

Entry Point

Western Branch Entry Point ℹ️

<0.006 µg/L

Below Reporting Level

10/10/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.006 µg/L

Below Reporting Level

8/22/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.006 µg/L

Below Reporting Level

4/10/2023

2 years ago

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

Contaminant Details

nonafluoro-3,6-dioxaheptanoic acid (4)

Entry Point

Western Branch Entry Point ℹ️

<0.02 µg/L

Below Reporting Level

1/8/2024

25 months ago

Entry Point

Western Branch Entry Point ℹ️

<0.02 µg/L

Below Reporting Level

11/14/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.02 µg/L

Below Reporting Level

8/22/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.02 µg/L

Below Reporting Level

4/10/2023

2 years ago

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

Contaminant Details

o-toluidine (4)

Entry Point

Western Branch Entry Point ℹ️

<0.007 µg/L

Below Reporting Level

1/28/2019

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.007 µg/L

Below Reporting Level

12/3/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.007 µg/L

Below Reporting Level

6/4/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.007 µg/L

Below Reporting Level

3/5/2018

7 years ago

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

Contaminant Details

oxyfluorfen (4)

Entry Point

Western Branch Entry Point ℹ️

<0.05 µg/L

Below Reporting Level

12/3/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.05 µg/L

Below Reporting Level

11/30/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.05 µg/L

Below Reporting Level

7/23/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.05 µg/L

Below Reporting Level

3/5/2018

7 years ago

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

Contaminant Details

perfluoro(2-ethoxyethane)sulfonic acid (4)

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

1/8/2024

25 months ago

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

11/14/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

8/22/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

4/10/2023

2 years ago

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

Contaminant Details

perfluoro-3-methoxypropanoic acid (4)

Entry Point

Western Branch Entry Point ℹ️

<0.004 µg/L

Below Reporting Level

1/8/2024

25 months ago

Entry Point

Western Branch Entry Point ℹ️

<0.004 µg/L

Below Reporting Level

11/14/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.004 µg/L

Below Reporting Level

8/22/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.004 µg/L

Below Reporting Level

4/10/2023

2 years ago

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

Contaminant Details

perfluoro-4-methoxybutanoic acid (4)

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

1/8/2024

25 months ago

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

11/14/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

8/22/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

4/10/2023

2 years ago

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

Contaminant Details

perfluorobutanesulfonic acid (8)

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

1/8/2024

25 months ago

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

11/14/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

8/22/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

4/10/2023

2 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.09 µg/L

Below Reporting Level

4/15/2014

11 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.09 µg/L

Below Reporting Level

1/14/2014

12 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.09 µg/L

Below Reporting Level

10/8/2013

12 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.09 µg/L

Below Reporting Level

7/17/2013

12 years ago

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

Contaminant Details

perfluorobutanoic acid (4)

Entry Point

Western Branch Entry Point ℹ️

<0.005 µg/L

Below Reporting Level

1/8/2024

25 months ago

Entry Point

Western Branch Entry Point ℹ️

<0.005 µg/L

Below Reporting Level

11/14/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.005 µg/L

Below Reporting Level

8/22/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.005 µg/L

Below Reporting Level

4/10/2023

2 years ago

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

Contaminant Details

perfluorodecanoic acid (4)

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

1/8/2024

25 months ago

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

11/14/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

8/22/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

4/10/2023

2 years ago

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

Contaminant Details

perfluorododecanoic acid (4)

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

1/8/2024

25 months ago

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

11/14/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

8/22/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

4/10/2023

2 years ago

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

Contaminant Details

perfluoroheptanesulfonic acid (4)

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

1/8/2024

25 months ago

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

11/14/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

8/22/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

4/10/2023

2 years ago

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

Contaminant Details

perfluoroheptanoic acid (8)

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

1/8/2024

25 months ago

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

11/14/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

8/22/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

4/10/2023

2 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.01 µg/L

Below Reporting Level

4/15/2014

11 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.01 µg/L

Below Reporting Level

1/14/2014

12 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.01 µg/L

Below Reporting Level

10/8/2013

12 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.01 µg/L

Below Reporting Level

7/17/2013

12 years ago

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

Contaminant Details

perfluorohexanesulfonic acid (8)

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

1/8/2024

25 months ago

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

11/14/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

8/22/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

4/10/2023

2 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.03 µg/L

Below Reporting Level

4/15/2014

11 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.03 µg/L

Below Reporting Level

1/14/2014

12 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.03 µg/L

Below Reporting Level

10/8/2013

12 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.03 µg/L

Below Reporting Level

7/17/2013

12 years ago

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

Contaminant Details

perfluorohexanoic acid (4)

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

1/8/2024

25 months ago

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

11/14/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

8/22/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

4/10/2023

2 years ago

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

Contaminant Details

perfluorononanoic acid (8)

Entry Point

Western Branch Entry Point ℹ️

<0.004 µg/L

Below Reporting Level

1/8/2024

25 months ago

Entry Point

Western Branch Entry Point ℹ️

<0.004 µg/L

Below Reporting Level

11/14/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.004 µg/L

Below Reporting Level

8/22/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.004 µg/L

Below Reporting Level

4/10/2023

2 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.02 µg/L

Below Reporting Level

4/15/2014

11 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.02 µg/L

Below Reporting Level

1/14/2014

12 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.02 µg/L

Below Reporting Level

10/8/2013

12 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.02 µg/L

Below Reporting Level

7/17/2013

12 years ago

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

Contaminant Details

perfluorooctanesulfonic acid (8)

Entry Point

Western Branch Entry Point ℹ️

<0.004 µg/L

Below Reporting Level

1/8/2024

25 months ago

Entry Point

Western Branch Entry Point ℹ️

<0.004 µg/L

Below Reporting Level

11/14/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.004 µg/L

Below Reporting Level

8/22/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.004 µg/L

Below Reporting Level

4/10/2023

2 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.04 µg/L

Below Reporting Level

4/15/2014

11 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.04 µg/L

Below Reporting Level

1/14/2014

12 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.04 µg/L

Below Reporting Level

10/8/2013

12 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.04 µg/L

Below Reporting Level

7/17/2013

12 years ago

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

Contaminant Details

perfluorooctanoic acid (8)

Entry Point

Western Branch Entry Point ℹ️

<0.004 µg/L

Below Reporting Level

1/8/2024

25 months ago

Entry Point

Western Branch Entry Point ℹ️

<0.004 µg/L

Below Reporting Level

11/14/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.004 µg/L

Below Reporting Level

8/22/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.004 µg/L

Below Reporting Level

4/10/2023

2 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.02 µg/L

Below Reporting Level

4/15/2014

11 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.02 µg/L

Below Reporting Level

1/14/2014

12 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.02 µg/L

Below Reporting Level

10/8/2013

12 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.02 µg/L

Below Reporting Level

7/17/2013

12 years ago

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

Contaminant Details

perfluoropentanesulfonic acid (4)

Entry Point

Western Branch Entry Point ℹ️

<0.004 µg/L

Below Reporting Level

1/8/2024

25 months ago

Entry Point

Western Branch Entry Point ℹ️

<0.004 µg/L

Below Reporting Level

11/14/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.004 µg/L

Below Reporting Level

8/22/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.004 µg/L

Below Reporting Level

4/10/2023

2 years ago

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

Contaminant Details

perfluoropentanoic acid (4)

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

1/8/2024

25 months ago

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

11/14/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

8/22/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.003 µg/L

Below Reporting Level

4/10/2023

2 years ago

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

Contaminant Details

perfluorotetradecanoic acid (4)

Entry Point

Western Branch Entry Point ℹ️

<0.008 µg/L

Below Reporting Level

1/8/2024

25 months ago

Entry Point

Western Branch Entry Point ℹ️

<0.008 µg/L

Below Reporting Level

10/10/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.008 µg/L

Below Reporting Level

8/22/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.008 µg/L

Below Reporting Level

4/10/2023

2 years ago

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

Contaminant Details

perfluorotridecanoic acid (4)

Entry Point

Western Branch Entry Point ℹ️

<0.007 µg/L

Below Reporting Level

1/8/2024

25 months ago

Entry Point

Western Branch Entry Point ℹ️

<0.007 µg/L

Below Reporting Level

10/10/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.007 µg/L

Below Reporting Level

8/22/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.007 µg/L

Below Reporting Level

4/10/2023

2 years ago

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

Contaminant Details

perfluoroundecanoic acid (4)

Entry Point

Western Branch Entry Point ℹ️

<0.002 µg/L

Below Reporting Level

1/8/2024

25 months ago

Entry Point

Western Branch Entry Point ℹ️

<0.002 µg/L

Below Reporting Level

11/14/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.002 µg/L

Below Reporting Level

8/22/2023

2 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.002 µg/L

Below Reporting Level

4/10/2023

2 years ago

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

Contaminant Details

profenofos (4)

Entry Point

Western Branch Entry Point ℹ️

<0.3 µg/L

Below Reporting Level

12/3/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.3 µg/L

Below Reporting Level

11/30/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.3 µg/L

Below Reporting Level

7/23/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.3 µg/L

Below Reporting Level

3/5/2018

7 years ago

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

Contaminant Details

quinoline (4)

Entry Point

Western Branch Entry Point ℹ️

<0.02 µg/L

Below Reporting Level

1/28/2019

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.02 µg/L

Below Reporting Level

12/3/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.02 µg/L

Below Reporting Level

6/4/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.02 µg/L

Below Reporting Level

3/5/2018

7 years ago

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

Contaminant Details

strontium (8)

Western Branch Entry Point - WBGT

Western Branch ℹ️

37.5 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 37.2 µg/L

4/15/2014

11 years ago

FS #12 - 4421 Taylor Road

Western Branch Distribution System ℹ️

33.9 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 33.6 µg/L

4/15/2014

11 years ago

FS #12 - 4421 Taylor Road

Western Branch Distribution System ℹ️

34.2 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 33.9 µg/L

1/14/2014

12 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

33.7 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 33.4 µg/L

1/14/2014

12 years ago

FS #12 - 4421 Taylor Road

Western Branch Distribution System ℹ️

66.6 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 66.3 µg/L

10/8/2013

12 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

64.1 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 63.8 µg/L

10/8/2013

12 years ago

FS #12 - 4421 Taylor Road

Western Branch Distribution System ℹ️

43.7 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 43.4 µg/L

7/17/2013

12 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

40.3 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 40 µg/L

7/17/2013

12 years ago

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

Contaminant Details

tebuconazole (4)

Entry Point

Western Branch Entry Point ℹ️

<0.2 µg/L

Below Reporting Level

12/3/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.2 µg/L

Below Reporting Level

11/30/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.2 µg/L

Below Reporting Level

7/23/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.2 µg/L

Below Reporting Level

3/5/2018

7 years ago

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

Contaminant Details

total microcystins (8)

Entry Point

Western Branch Entry Point ℹ️

<0.3 µg/L

Below Reporting Level

6/18/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.3 µg/L

Below Reporting Level

6/4/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.3 µg/L

Below Reporting Level

5/21/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.3 µg/L

Below Reporting Level

5/7/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.3 µg/L

Below Reporting Level

4/16/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.3 µg/L

Below Reporting Level

4/2/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.3 µg/L

Below Reporting Level

3/19/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.3 µg/L

Below Reporting Level

3/5/2018

7 years ago

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

Contaminant Details

Total Permethrin (4)

Entry Point

Western Branch Entry Point ℹ️

<0.04 µg/L

Below Reporting Level

12/3/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.04 µg/L

Below Reporting Level

11/30/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.04 µg/L

Below Reporting Level

7/23/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.04 µg/L

Below Reporting Level

3/5/2018

7 years ago

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

Contaminant Details

tribufos (4)

Entry Point

Western Branch Entry Point ℹ️

<0.07 µg/L

Below Reporting Level

12/3/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.07 µg/L

Below Reporting Level

11/30/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.07 µg/L

Below Reporting Level

7/23/2018

7 years ago

Entry Point

Western Branch Entry Point ℹ️

<0.07 µg/L

Below Reporting Level

3/5/2018

7 years ago

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

Contaminant Details

vanadium (8)

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.2 µg/L

Below Reporting Level

4/15/2014

11 years ago

FS #12 - 4421 Taylor Road

Western Branch Distribution System ℹ️

<0.2 µg/L

Below Reporting Level

4/15/2014

11 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

<0.2 µg/L

Below Reporting Level

1/14/2014

12 years ago

FS #12 - 4421 Taylor Road

Western Branch Distribution System ℹ️

<0.2 µg/L

Below Reporting Level

1/14/2014

12 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

0.3 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.1 µg/L

10/8/2013

12 years ago

FS #12 - 4421 Taylor Road

Western Branch Distribution System ℹ️

0.3 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.1 µg/L

10/8/2013

12 years ago

Western Branch Entry Point - WBGT

Western Branch ℹ️

0.5 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.3 µg/L

7/17/2013

12 years ago

FS #12 - 4421 Taylor Road

Western Branch Distribution System ℹ️

0.5 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.3 µg/L

7/17/2013

12 years ago

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

Contaminant Details

Sampling Facilities

Western Branch Entry Point
Surface Water (SW)

Entry PointEntry Point to the Distribution System (EP)

Western Branch Distribution System
Surface Water (SW)

4005 Portsmouth Blvd. (Lukoil Gas Station)Distribution System (DS)

4713 Elizabeth Harbor Dr. (WB Ground Tank)Distribution System (DS)

4201 Hawksley Dr. (W. Branch Junior High School)Distribution System (DS)

4421 Taylor Rd. (Fire Station #12)Distribution System (DS)

FS #12 - 4421 Taylor RoadMaximum Residence Time (MR)

Western Branch
Surface Water (SW)

Western Branch Entry Point - WBGTEntry Point to the Distribution System (EP)

FAQ

Is City of Chesapeake - Western Branch tap water safe to drink?

When was City of Chesapeake - Western Branch last tested for water contamination?

The latest water samples were taken on January 8th, 2024.

Contaminants

1,1-dichloroethane (4)

1,2,3-trichloropropane (4)

1,3-butadiene (4)

1,4-dioxane (4)

1-butanol (4)

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

bromochloromethane (Halon 1011) (4)

bromomethane (4)

Butylated Hydroxyanisole (4)

chlorate (8)

chlorodifluoromethane (HCFC-22) (4)

chloromethane (4)

chlorpyrifos (4)

chromium (8)

chromium-6 (8)

cobalt (8)

cylindrospermopsin (8)

dimethipin (4)

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)

molybdenum (8)

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 (8)

perfluorobutanoic acid (4)

perfluorodecanoic acid (4)

perfluorododecanoic acid (4)

perfluoroheptanesulfonic acid (4)

perfluoroheptanoic acid (8)

perfluorohexanesulfonic acid (8)

perfluorohexanoic acid (4)

perfluorononanoic acid (8)

perfluorooctanesulfonic acid (8)

perfluorooctanoic acid (8)

perfluoropentanesulfonic acid (4)

perfluoropentanoic acid (4)

perfluorotetradecanoic acid (4)

perfluorotridecanoic acid (4)

perfluoroundecanoic acid (4)

profenofos (4)

quinoline (4)

strontium (8)

tebuconazole (4)

total microcystins (8)

Total Permethrin (4)

tribufos (4)

vanadium (8)

Sampling Facilities

Western Branch Entry Point Surface Water (SW)

Western Branch Distribution System Surface Water (SW)

Western Branch Surface Water (SW)

FAQ

Is City of Chesapeake - Western Branch tap water safe to drink?

When was City of Chesapeake - Western Branch last tested for water contamination?

Western Branch Entry Point
Surface Water (SW)

Western Branch Distribution System
Surface Water (SW)

Western Branch
Surface Water (SW)