LITTLETON WATER AND LIGHT DEPT (NH) Water Quality

LITTLETON WATER AND LIGHT DEPT is a small public water system in EPA region 1 that provides tap water for the 03561 zip codes. It has 4 facilities where the water supply was tested for 47 chemical contaminants that impact tap water quality and human health.

The maximum reported level of Manganese was 1.754 µg/L. There were 1 contamintants found in the LITTLETON WATER AND LIGHT DEPT water supply at levels that were above the minimum reporting level.

Contaminants

1,1-dichloroethane (6)

N. Branch Gale River

Intake #1 ℹ️

<0.03 µg/L

Below Reporting Level

11/24/2014

10 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.03 µg/L

Below Reporting Level

8/20/2014

11 years ago

Brickyard

Well #1 ℹ️

<0.03 µg/L

Below Reporting Level

8/20/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.03 µg/L

Below Reporting Level

5/22/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.03 µg/L

Below Reporting Level

2/18/2014

11 years ago

Brickyard

Well #1 ℹ️

<0.03 µg/L

Below Reporting Level

2/18/2014

11 years ago

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

Contaminant Details

1,2,3-trichloropropane (6)

N. Branch Gale River

Intake #1 ℹ️

<0.03 µg/L

Below Reporting Level

11/24/2014

10 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.03 µg/L

Below Reporting Level

8/20/2014

11 years ago

Brickyard

Well #1 ℹ️

<0.03 µg/L

Below Reporting Level

8/20/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.03 µg/L

Below Reporting Level

5/22/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.03 µg/L

Below Reporting Level

2/18/2014

11 years ago

Brickyard

Well #1 ℹ️

<0.03 µg/L

Below Reporting Level

2/18/2014

11 years ago

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

Contaminant Details

1,3-butadiene (6)

N. Branch Gale River

Intake #1 ℹ️

<0.1 µg/L

Below Reporting Level

11/24/2014

10 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.1 µg/L

Below Reporting Level

8/20/2014

11 years ago

Brickyard

Well #1 ℹ️

<0.1 µg/L

Below Reporting Level

8/20/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.1 µg/L

Below Reporting Level

5/22/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.1 µg/L

Below Reporting Level

2/18/2014

11 years ago

Brickyard

Well #1 ℹ️

<0.1 µg/L

Below Reporting Level

2/18/2014

11 years ago

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

Contaminant Details

1,4-dioxane (6)

N. Branch Gale River

Intake #1 ℹ️

<0.07 µg/L

Below Reporting Level

11/24/2014

10 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.07 µg/L

Below Reporting Level

8/20/2014

11 years ago

Brickyard

Well #1 ℹ️

<0.07 µg/L

Below Reporting Level

8/20/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.07 µg/L

Below Reporting Level

5/22/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.07 µg/L

Below Reporting Level

2/18/2014

11 years ago

Brickyard

Well #1 ℹ️

<0.07 µg/L

Below Reporting Level

2/18/2014

11 years ago

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

Contaminant Details

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

TRUDEAU ROAD MONITORING BLDG/001

SLOW SAND FILTRATION TREATMENT PLANT ℹ️

<0.005 µg/L

Below Reporting Level

3/10/2025

7 months ago

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

Contaminant Details

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

TRUDEAU ROAD MONITORING BLDG/001

SLOW SAND FILTRATION TREATMENT PLANT ℹ️

<0.005 µg/L

Below Reporting Level

3/10/2025

7 months ago

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

Contaminant Details

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

TRUDEAU ROAD MONITORING BLDG/001

SLOW SAND FILTRATION TREATMENT PLANT ℹ️

<0.003 µg/L

Below Reporting Level

3/10/2025

7 months ago

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

Contaminant Details

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

TRUDEAU ROAD MONITORING BLDG/001

SLOW SAND FILTRATION TREATMENT PLANT ℹ️

<0.005 µg/L

Below Reporting Level

3/10/2025

7 months ago

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

Contaminant Details

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

TRUDEAU ROAD MONITORING BLDG/001

SLOW SAND FILTRATION TREATMENT PLANT ℹ️

<0.003 µg/L

Below Reporting Level

3/10/2025

7 months ago

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

Contaminant Details

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

TRUDEAU ROAD MONITORING BLDG/001

SLOW SAND FILTRATION TREATMENT PLANT ℹ️

<0.002 µg/L

Below Reporting Level

3/10/2025

7 months ago

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

Contaminant Details

bromochloromethane (Halon 1011) (6)

N. Branch Gale River

Intake #1 ℹ️

<0.06 µg/L

Below Reporting Level

11/24/2014

10 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.06 µg/L

Below Reporting Level

8/20/2014

11 years ago

Brickyard

Well #1 ℹ️

<0.06 µg/L

Below Reporting Level

8/20/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.06 µg/L

Below Reporting Level

5/22/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.06 µg/L

Below Reporting Level

2/18/2014

11 years ago

Brickyard

Well #1 ℹ️

<0.06 µg/L

Below Reporting Level

2/18/2014

11 years ago

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

Contaminant Details

bromomethane (6)

N. Branch Gale River

Intake #1 ℹ️

<0.2 µg/L

Below Reporting Level

11/24/2014

10 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.2 µg/L

Below Reporting Level

8/20/2014

11 years ago

Brickyard

Well #1 ℹ️

<0.2 µg/L

Below Reporting Level

8/20/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.2 µg/L

Below Reporting Level

5/22/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.2 µg/L

Below Reporting Level

2/18/2014

11 years ago

Brickyard

Well #1 ℹ️

<0.2 µg/L

Below Reporting Level

2/18/2014

11 years ago

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

Contaminant Details

chlorate (10)

1309 Mt. Eustis

Distribution System ℹ️

170 µg/L

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

11/24/2014

10 years ago

N. Branch Gale River

Intake #1 ℹ️

80 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 60 µg/L

11/24/2014

10 years ago

Brickyard

Well #1 ℹ️

2415.59 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 2395.59 µg/L

8/20/2014

11 years ago

1309 Mt. Eustis

Distribution System ℹ️

260.027 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 240.027 µg/L

8/20/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

217.426 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 197.426 µg/L

8/20/2014

11 years ago

1309 Mt. Eustis

Distribution System ℹ️

91 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 71 µg/L

5/22/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

74 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 54 µg/L

5/22/2014

11 years ago

Brickyard

Well #1 ℹ️

440 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 420 µg/L

2/18/2014

11 years ago

1309 Mt. Eustis

Distribution System ℹ️

110 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 90 µg/L

2/18/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

83 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 63 µg/L

2/18/2014

11 years ago

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

Contaminant Details

chlorodifluoromethane (HCFC-22) (6)

N. Branch Gale River

Intake #1 ℹ️

<0.08 µg/L

Below Reporting Level

11/24/2014

10 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.08 µg/L

Below Reporting Level

8/20/2014

11 years ago

Brickyard

Well #1 ℹ️

<0.08 µg/L

Below Reporting Level

8/20/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.08 µg/L

Below Reporting Level

5/22/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.08 µg/L

Below Reporting Level

2/18/2014

11 years ago

Brickyard

Well #1 ℹ️

<0.08 µg/L

Below Reporting Level

2/18/2014

11 years ago

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

Contaminant Details

chloromethane (6)

N. Branch Gale River

Intake #1 ℹ️

<0.2 µg/L

Below Reporting Level

11/24/2014

10 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.2 µg/L

Below Reporting Level

8/20/2014

11 years ago

Brickyard

Well #1 ℹ️

<0.2 µg/L

Below Reporting Level

8/20/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.2 µg/L

Below Reporting Level

5/22/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.2 µg/L

Below Reporting Level

2/18/2014

11 years ago

Brickyard

Well #1 ℹ️

<0.2 µg/L

Below Reporting Level

2/18/2014

11 years ago

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

Contaminant Details

chromium (10)

1309 Mt. Eustis

Distribution System ℹ️

0.34 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.14 µg/L

11/24/2014

10 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.2 µg/L

Below Reporting Level

11/24/2014

10 years ago

Brickyard

Well #1 ℹ️

<0.2 µg/L

Below Reporting Level

10/6/2014

11 years ago

1309 Mt. Eustis

Distribution System ℹ️

0.374 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.174 µg/L

8/20/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.2 µg/L

Below Reporting Level

8/20/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.2 µg/L

Below Reporting Level

5/22/2014

11 years ago

1309 Mt. Eustis

Distribution System ℹ️

<0.2 µg/L

Below Reporting Level

5/22/2014

11 years ago

Brickyard

Well #1 ℹ️

0.4 µg/L

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

2/18/2014

11 years ago

1309 Mt. Eustis

Distribution System ℹ️

0.2 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0 µg/L

2/18/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.2 µg/L

Below Reporting Level

2/18/2014

11 years ago

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

Contaminant Details

chromium-6 (10)

1309 Mt. Eustis

Distribution System ℹ️

0.24 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.21 µg/L

11/24/2014

10 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.03 µg/L

Below Reporting Level

11/24/2014

10 years ago

Brickyard

Well #1 ℹ️

0.363 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.333 µg/L

8/20/2014

11 years ago

1309 Mt. Eustis

Distribution System ℹ️

0.256 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.226 µg/L

8/20/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.03 µg/L

Below Reporting Level

8/20/2014

11 years ago

1309 Mt. Eustis

Distribution System ℹ️

0.06 µg/L

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

5/22/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.03 µg/L

Below Reporting Level

5/22/2014

11 years ago

Brickyard

Well #1 ℹ️

0.39 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.36 µg/L

2/18/2014

11 years ago

1309 Mt. Eustis

Distribution System ℹ️

0.16 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.13 µg/L

2/18/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.03 µg/L

Below Reporting Level

2/18/2014

11 years ago

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

Contaminant Details

cobalt (10)

N. Branch Gale River

Intake #1 ℹ️

<1 µg/L

Below Reporting Level

11/24/2014

10 years ago

1309 Mt. Eustis

Distribution System ℹ️

<1 µg/L

Below Reporting Level

11/24/2014

10 years ago

Brickyard

Well #1 ℹ️

<1 µg/L

Below Reporting Level

10/6/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<1 µg/L

Below Reporting Level

8/20/2014

11 years ago

1309 Mt. Eustis

Distribution System ℹ️

<1 µg/L

Below Reporting Level

8/20/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<1 µg/L

Below Reporting Level

5/22/2014

11 years ago

1309 Mt. Eustis

Distribution System ℹ️

<1 µg/L

Below Reporting Level

5/22/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<1 µg/L

Below Reporting Level

2/18/2014

11 years ago

Brickyard

Well #1 ℹ️

<1 µg/L

Below Reporting Level

2/18/2014

11 years ago

1309 Mt. Eustis

Distribution System ℹ️

<1 µg/L

Below Reporting Level

2/18/2014

11 years ago

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

Contaminant Details

Germanium (10)

N. Branch Gale River

Intake #1 ℹ️

<1 µg/L

Below Reporting Level

11/24/2014

10 years ago

1309 Mt. Eustis

Distribution System ℹ️

<1 µg/L

Below Reporting Level

11/24/2014

10 years ago

Brickyard

Well #1 ℹ️

<1 µg/L

Below Reporting Level

10/6/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<1 µg/L

Below Reporting Level

8/20/2014

11 years ago

1309 Mt. Eustis

Distribution System ℹ️

<1 µg/L

Below Reporting Level

8/20/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<1 µg/L

Below Reporting Level

5/22/2014

11 years ago

1309 Mt. Eustis

Distribution System ℹ️

<1 µg/L

Below Reporting Level

5/22/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<1 µg/L

Below Reporting Level

2/18/2014

11 years ago

Brickyard

Well #1 ℹ️

<1 µg/L

Below Reporting Level

2/18/2014

11 years ago

1309 Mt. Eustis

Distribution System ℹ️

<1 µg/L

Below Reporting Level

2/18/2014

11 years ago

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

Contaminant Details

hexafluoropropylene oxide dimer acid (GenX) (1)

TRUDEAU ROAD MONITORING BLDG/001

SLOW SAND FILTRATION TREATMENT PLANT ℹ️

<0.005 µg/L

Below Reporting Level

3/10/2025

7 months ago

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

Contaminant Details

lithium (1)

TRUDEAU ROAD MONITORING BLDG/001

SLOW SAND FILTRATION TREATMENT PLANT ℹ️

<9 µg/L

Below Reporting Level

3/10/2025

7 months ago

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

Contaminant Details

Manganese (10)

N. Branch Gale River

Intake #1 ℹ️

<1 µg/L

Below Reporting Level

11/24/2014

10 years ago

1309 Mt. Eustis

Distribution System ℹ️

<1 µg/L

Below Reporting Level

11/24/2014

10 years ago

Brickyard

Well #1 ℹ️

1.754 µg/L

Meets Reporting Threshold

10/6/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<1 µg/L

Below Reporting Level

8/20/2014

11 years ago

1309 Mt. Eustis

Distribution System ℹ️

<1 µg/L

Below Reporting Level

8/20/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<1 µg/L

Below Reporting Level

5/22/2014

11 years ago

1309 Mt. Eustis

Distribution System ℹ️

<1 µg/L

Below Reporting Level

5/22/2014

11 years ago

Brickyard

Well #1 ℹ️

1.1 µg/L

Meets Reporting Threshold

2/18/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<1 µg/L

Below Reporting Level

2/18/2014

11 years ago

1309 Mt. Eustis

Distribution System ℹ️

<1 µg/L

Below Reporting Level

2/18/2014

11 years ago

Minimum Reporting Level: 1 µg/L
Reference Level: 300 µg/L

Contaminant Details

molybdenum (10)

N. Branch Gale River

Intake #1 ℹ️

<1 µg/L

Below Reporting Level

11/24/2014

10 years ago

1309 Mt. Eustis

Distribution System ℹ️

<1 µg/L

Below Reporting Level

11/24/2014

10 years ago

Brickyard

Well #1 ℹ️

<1 µg/L

Below Reporting Level

10/6/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<1 µg/L

Below Reporting Level

8/20/2014

11 years ago

1309 Mt. Eustis

Distribution System ℹ️

<1 µg/L

Below Reporting Level

8/20/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<1 µg/L

Below Reporting Level

5/22/2014

11 years ago

1309 Mt. Eustis

Distribution System ℹ️

<1 µg/L

Below Reporting Level

5/22/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<1 µg/L

Below Reporting Level

2/18/2014

11 years ago

Brickyard

Well #1 ℹ️

<1 µg/L

Below Reporting Level

2/18/2014

11 years ago

1309 Mt. Eustis

Distribution System ℹ️

<1 µg/L

Below Reporting Level

2/18/2014

11 years ago

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

Contaminant Details

N-ethyl perfluorooctanesulfonamidoacetic acid (1)

TRUDEAU ROAD MONITORING BLDG/001

SLOW SAND FILTRATION TREATMENT PLANT ℹ️

<0.005 µg/L

Below Reporting Level

3/10/2025

7 months ago

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

Contaminant Details

N-methyl perfluorooctanesulfonamidoacetic acid (1)

TRUDEAU ROAD MONITORING BLDG/001

SLOW SAND FILTRATION TREATMENT PLANT ℹ️

<0.006 µg/L

Below Reporting Level

3/10/2025

7 months ago

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

Contaminant Details

nonafluoro-3,6-dioxaheptanoic acid (1)

TRUDEAU ROAD MONITORING BLDG/001

SLOW SAND FILTRATION TREATMENT PLANT ℹ️

<0.02 µg/L

Below Reporting Level

3/10/2025

7 months ago

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

Contaminant Details

perfluoro(2-ethoxyethane)sulfonic acid (1)

TRUDEAU ROAD MONITORING BLDG/001

SLOW SAND FILTRATION TREATMENT PLANT ℹ️

<0.003 µg/L

Below Reporting Level

3/10/2025

7 months ago

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

Contaminant Details

perfluoro-3-methoxypropanoic acid (1)

TRUDEAU ROAD MONITORING BLDG/001

SLOW SAND FILTRATION TREATMENT PLANT ℹ️

<0.004 µg/L

Below Reporting Level

3/10/2025

7 months ago

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

Contaminant Details

perfluoro-4-methoxybutanoic acid (1)

TRUDEAU ROAD MONITORING BLDG/001

SLOW SAND FILTRATION TREATMENT PLANT ℹ️

<0.003 µg/L

Below Reporting Level

3/10/2025

7 months ago

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

Contaminant Details

perfluorobutanesulfonic acid (7)

TRUDEAU ROAD MONITORING BLDG/001

SLOW SAND FILTRATION TREATMENT PLANT ℹ️

<0.003 µg/L

Below Reporting Level

3/10/2025

7 months ago

N. Branch Gale River

Intake #1 ℹ️

<0.09 µg/L

Below Reporting Level

11/24/2014

10 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.09 µg/L

Below Reporting Level

8/20/2014

11 years ago

Brickyard

Well #1 ℹ️

<0.09 µg/L

Below Reporting Level

8/20/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.09 µg/L

Below Reporting Level

5/22/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.09 µg/L

Below Reporting Level

2/18/2014

11 years ago

Brickyard

Well #1 ℹ️

<0.09 µg/L

Below Reporting Level

2/18/2014

11 years ago

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

Contaminant Details

perfluorobutanoic acid (1)

TRUDEAU ROAD MONITORING BLDG/001

SLOW SAND FILTRATION TREATMENT PLANT ℹ️

<0.005 µg/L

Below Reporting Level

3/10/2025

7 months ago

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

Contaminant Details

perfluorodecanoic acid (1)

TRUDEAU ROAD MONITORING BLDG/001

SLOW SAND FILTRATION TREATMENT PLANT ℹ️

<0.003 µg/L

Below Reporting Level

3/10/2025

7 months ago

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

Contaminant Details

perfluorododecanoic acid (1)

TRUDEAU ROAD MONITORING BLDG/001

SLOW SAND FILTRATION TREATMENT PLANT ℹ️

<0.003 µg/L

Below Reporting Level

3/10/2025

7 months ago

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

Contaminant Details

perfluoroheptanesulfonic acid (1)

TRUDEAU ROAD MONITORING BLDG/001

SLOW SAND FILTRATION TREATMENT PLANT ℹ️

<0.003 µg/L

Below Reporting Level

3/10/2025

7 months ago

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

Contaminant Details

perfluoroheptanoic acid (7)

TRUDEAU ROAD MONITORING BLDG/001

SLOW SAND FILTRATION TREATMENT PLANT ℹ️

<0.003 µg/L

Below Reporting Level

3/10/2025

7 months ago

N. Branch Gale River

Intake #1 ℹ️

<0.01 µg/L

Below Reporting Level

11/24/2014

10 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.01 µg/L

Below Reporting Level

8/20/2014

11 years ago

Brickyard

Well #1 ℹ️

<0.01 µg/L

Below Reporting Level

8/20/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.01 µg/L

Below Reporting Level

5/22/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.01 µg/L

Below Reporting Level

2/18/2014

11 years ago

Brickyard

Well #1 ℹ️

<0.01 µg/L

Below Reporting Level

2/18/2014

11 years ago

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

Contaminant Details

perfluorohexanesulfonic acid (7)

TRUDEAU ROAD MONITORING BLDG/001

SLOW SAND FILTRATION TREATMENT PLANT ℹ️

<0.003 µg/L

Below Reporting Level

3/10/2025

7 months ago

N. Branch Gale River

Intake #1 ℹ️

<0.03 µg/L

Below Reporting Level

11/24/2014

10 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.03 µg/L

Below Reporting Level

8/20/2014

11 years ago

Brickyard

Well #1 ℹ️

<0.03 µg/L

Below Reporting Level

8/20/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.03 µg/L

Below Reporting Level

5/22/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.03 µg/L

Below Reporting Level

2/18/2014

11 years ago

Brickyard

Well #1 ℹ️

<0.03 µg/L

Below Reporting Level

2/18/2014

11 years ago

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

Contaminant Details

perfluorohexanoic acid (1)

TRUDEAU ROAD MONITORING BLDG/001

SLOW SAND FILTRATION TREATMENT PLANT ℹ️

<0.003 µg/L

Below Reporting Level

3/10/2025

7 months ago

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

Contaminant Details

perfluorononanoic acid (7)

TRUDEAU ROAD MONITORING BLDG/001

SLOW SAND FILTRATION TREATMENT PLANT ℹ️

<0.004 µg/L

Below Reporting Level

3/10/2025

7 months ago

N. Branch Gale River

Intake #1 ℹ️

<0.02 µg/L

Below Reporting Level

11/24/2014

10 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.02 µg/L

Below Reporting Level

8/20/2014

11 years ago

Brickyard

Well #1 ℹ️

<0.02 µg/L

Below Reporting Level

8/20/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.02 µg/L

Below Reporting Level

5/22/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.02 µg/L

Below Reporting Level

2/18/2014

11 years ago

Brickyard

Well #1 ℹ️

<0.02 µg/L

Below Reporting Level

2/18/2014

11 years ago

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

Contaminant Details

perfluorooctanesulfonic acid (7)

TRUDEAU ROAD MONITORING BLDG/001

SLOW SAND FILTRATION TREATMENT PLANT ℹ️

<0.004 µg/L

Below Reporting Level

3/10/2025

7 months ago

N. Branch Gale River

Intake #1 ℹ️

<0.04 µg/L

Below Reporting Level

11/24/2014

10 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.04 µg/L

Below Reporting Level

8/20/2014

11 years ago

Brickyard

Well #1 ℹ️

<0.04 µg/L

Below Reporting Level

8/20/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.04 µg/L

Below Reporting Level

5/22/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.04 µg/L

Below Reporting Level

2/18/2014

11 years ago

Brickyard

Well #1 ℹ️

<0.04 µg/L

Below Reporting Level

2/18/2014

11 years ago

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

Contaminant Details

perfluorooctanoic acid (7)

TRUDEAU ROAD MONITORING BLDG/001

SLOW SAND FILTRATION TREATMENT PLANT ℹ️

<0.004 µg/L

Below Reporting Level

3/10/2025

7 months ago

N. Branch Gale River

Intake #1 ℹ️

<0.02 µg/L

Below Reporting Level

11/24/2014

10 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.02 µg/L

Below Reporting Level

8/20/2014

11 years ago

Brickyard

Well #1 ℹ️

<0.02 µg/L

Below Reporting Level

8/20/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.02 µg/L

Below Reporting Level

5/22/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.02 µg/L

Below Reporting Level

2/18/2014

11 years ago

Brickyard

Well #1 ℹ️

<0.02 µg/L

Below Reporting Level

2/18/2014

11 years ago

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

Contaminant Details

perfluoropentanesulfonic acid (1)

TRUDEAU ROAD MONITORING BLDG/001

SLOW SAND FILTRATION TREATMENT PLANT ℹ️

<0.004 µg/L

Below Reporting Level

3/10/2025

7 months ago

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

Contaminant Details

perfluoropentanoic acid (1)

TRUDEAU ROAD MONITORING BLDG/001

SLOW SAND FILTRATION TREATMENT PLANT ℹ️

<0.003 µg/L

Below Reporting Level

3/10/2025

7 months ago

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

Contaminant Details

perfluorotetradecanoic acid (1)

TRUDEAU ROAD MONITORING BLDG/001

SLOW SAND FILTRATION TREATMENT PLANT ℹ️

<0.008 µg/L

Below Reporting Level

3/10/2025

7 months ago

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

Contaminant Details

perfluorotridecanoic acid (1)

TRUDEAU ROAD MONITORING BLDG/001

SLOW SAND FILTRATION TREATMENT PLANT ℹ️

<0.007 µg/L

Below Reporting Level

3/10/2025

7 months ago

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

Contaminant Details

perfluoroundecanoic acid (1)

TRUDEAU ROAD MONITORING BLDG/001

SLOW SAND FILTRATION TREATMENT PLANT ℹ️

<0.002 µg/L

Below Reporting Level

3/10/2025

7 months ago

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

Contaminant Details

strontium (10)

1309 Mt. Eustis

Distribution System ℹ️

22 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 21.7 µg/L

11/24/2014

10 years ago

N. Branch Gale River

Intake #1 ℹ️

10 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 9.7 µg/L

11/24/2014

10 years ago

Brickyard

Well #1 ℹ️

20.891 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 20.591 µg/L

10/6/2014

11 years ago

1309 Mt. Eustis

Distribution System ℹ️

24.543 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 24.243 µg/L

8/20/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

10.422 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 10.122 µg/L

8/20/2014

11 years ago

1309 Mt. Eustis

Distribution System ℹ️

13 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 12.7 µg/L

5/22/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

9.1 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 8.8 µg/L

5/22/2014

11 years ago

Brickyard

Well #1 ℹ️

140 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 139.7 µg/L

2/18/2014

11 years ago

1309 Mt. Eustis

Distribution System ℹ️

18 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 17.7 µg/L

2/18/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

12 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 11.7 µg/L

2/18/2014

11 years ago

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

Contaminant Details

vanadium (10)

N. Branch Gale River

Intake #1 ℹ️

<0.2 µg/L

Below Reporting Level

11/24/2014

10 years ago

1309 Mt. Eustis

Distribution System ℹ️

<0.2 µg/L

Below Reporting Level

11/24/2014

10 years ago

Brickyard

Well #1 ℹ️

0.248 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.048 µg/L

10/6/2014

11 years ago

1309 Mt. Eustis

Distribution System ℹ️

0.202 µg/L

⚠️ Exceeds Reporting Level of 0.2 µg/L by 0.002 µg/L

8/20/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.2 µg/L

Below Reporting Level

8/20/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.2 µg/L

Below Reporting Level

5/22/2014

11 years ago

1309 Mt. Eustis

Distribution System ℹ️

<0.2 µg/L

Below Reporting Level

5/22/2014

11 years ago

Brickyard

Well #1 ℹ️

0.3 µg/L

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

2/18/2014

11 years ago

N. Branch Gale River

Intake #1 ℹ️

<0.2 µg/L

Below Reporting Level

2/18/2014

11 years ago

1309 Mt. Eustis

Distribution System ℹ️

<0.2 µg/L

Below Reporting Level

2/18/2014

11 years ago

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

Contaminant Details

Contaminants

1,1-dichloroethane (6)

1,2,3-trichloropropane (6)

1,3-butadiene (6)

1,4-dioxane (6)

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

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

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

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

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

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

bromochloromethane (Halon 1011) (6)

bromomethane (6)

chlorate (10)

chlorodifluoromethane (HCFC-22) (6)

chloromethane (6)

chromium (10)

chromium-6 (10)

cobalt (10)

Germanium (10)

hexafluoropropylene oxide dimer acid (GenX) (1)

lithium (1)

Manganese (10)

molybdenum (10)

N-ethyl perfluorooctanesulfonamidoacetic acid (1)

N-methyl perfluorooctanesulfonamidoacetic acid (1)

nonafluoro-3,6-dioxaheptanoic acid (1)

perfluoro(2-ethoxyethane)sulfonic acid (1)

perfluoro-3-methoxypropanoic acid (1)

perfluoro-4-methoxybutanoic acid (1)

perfluorobutanesulfonic acid (7)

perfluorobutanoic acid (1)

perfluorodecanoic acid (1)

perfluorododecanoic acid (1)

perfluoroheptanesulfonic acid (1)

perfluoroheptanoic acid (7)

perfluorohexanesulfonic acid (7)

perfluorohexanoic acid (1)

perfluorononanoic acid (7)

perfluorooctanesulfonic acid (7)

perfluorooctanoic acid (7)

perfluoropentanesulfonic acid (1)

perfluoropentanoic acid (1)

perfluorotetradecanoic acid (1)

perfluorotridecanoic acid (1)

perfluoroundecanoic acid (1)

strontium (10)

vanadium (10)

Sampling Facilities

SLOW SAND FILTRATION TREATMENT PLANT Surface Water (SW)

Intake #1 Surface Water (SW)

Well #1 Ground Water (GW)

Distribution System Multiple Sources (MX)

FAQ

Is LITTLETON WATER AND LIGHT DEPT tap water safe to drink?

When was LITTLETON WATER AND LIGHT DEPT last tested for water contamination?

SLOW SAND FILTRATION TREATMENT PLANT
Surface Water (SW)

Intake #1
Surface Water (SW)

Well #1
Ground Water (GW)

Distribution System
Multiple Sources (MX)