Swansea Water District (MA) Water Quality

Swansea Water District is a large public water system in EPA region 01 that provides tap water for the 02777 zip codes. It has 9 facilities where the water supply was tested for 23 chemical contaminants that impact tap water quality and human health.

Contaminants

1-butanol

1-butanol is a class of Alcohol that has a minimum reporting level of 2 µg/L and a reference level of 700 µg/L. All the latest water samples for Swansea Water District showed levels of 1-butanol that were below unsafe concentration levels. Learn more about 1-butanol.

Entry Point from Midwood Treatment
Midwood Well 1
10/10/2019
64 months ago
<2.0 µg/L
Below Reporting Level
Entry Point from Maker Treatment
Maker Wells 4 & 5
10/10/2019
64 months ago
<2.0 µg/L
Below Reporting Level
Entry Point from Borge Treatment
Borge Wells 7 & 11
10/10/2019
64 months ago
<2.0 µg/L
Below Reporting Level
Entry Point from Hornbine Treatment
Hornbine Well 8
10/10/2019
64 months ago
<2.0 µg/L
Below Reporting Level
Entry Point from Desalination Facility
Desalination Facility
10/10/2019
64 months ago
<2.0 µg/L
Below Reporting Level

2-methoxyethanol

2-methoxyethanol is a class of Alcohol that has a minimum reporting level of 0.4 µg/L and a reference level of 21 µg/L. All the latest water samples for Swansea Water District showed levels of 2-methoxyethanol that were below unsafe concentration levels. Learn more about 2-methoxyethanol.

Entry Point from Midwood Treatment
Midwood Well 1
10/10/2019
64 months ago
<0.4 µg/L
Below Reporting Level
Entry Point from Maker Treatment
Maker Wells 4 & 5
10/10/2019
64 months ago
<0.4 µg/L
Below Reporting Level
Entry Point from Borge Treatment
Borge Wells 7 & 11
10/10/2019
64 months ago
<0.4 µg/L
Below Reporting Level
Entry Point from Hornbine Treatment
Hornbine Well 8
10/10/2019
64 months ago
<0.4 µg/L
Below Reporting Level
Entry Point from Desalination Facility
Desalination Facility
10/10/2019
64 months ago
<0.4 µg/L
Below Reporting Level

2-propen-1-ol (Allyl Alcohol)

2-propen-1-ol (Allyl Alcohol) is a class of Alcohol that has a minimum reporting level of 0.5 µg/L and a reference level of 35 µg/L. All the latest water samples for Swansea Water District showed levels of 2-propen-1-ol (Allyl Alcohol) that were below unsafe concentration levels. Learn more about 2-propen-1-ol (Allyl Alcohol).

Entry Point from Midwood Treatment
Midwood Well 1
10/10/2019
64 months ago
<0.5 µg/L
Below Reporting Level
Entry Point from Maker Treatment
Maker Wells 4 & 5
10/10/2019
64 months ago
<0.5 µg/L
Below Reporting Level
Entry Point from Borge Treatment
Borge Wells 7 & 11
10/10/2019
64 months ago
<0.5 µg/L
Below Reporting Level
Entry Point from Hornbine Treatment
Hornbine Well 8
10/10/2019
64 months ago
<0.5 µg/L
Below Reporting Level
Entry Point from Desalination Facility
Desalination Facility
10/10/2019
64 months ago
<0.5 µg/L
Below Reporting Level

HAA5 (five regulated haloacetic acids)

HAA5 (five regulated haloacetic acids) are a class of Disinfection Byproducts that includes Dibromoacetic Acid, Dichloroacetic Acid, Monobromoacetic Acid, Monochloroacetic Acid, Trichloroacetic Acid and has a minimum reporting level of 0.5 µg/L and a reference level of 60 µg/L. All the latest water samples for Swansea Water District showed levels of HAA5 (five regulated haloacetic acids) that were below unsafe concentration levels. The maximum reported value was 30.1 µg/L. Learn more about HAA5 (five regulated haloacetic acids).

30.1µg/L
Standpipe Sample port
Standpipe
10/10/2019
64 months ago
21.7 µg/L
Meets Reporting Threshold
50 New Gardner Neck Road Sample port
50 New Gardner Neck Road
10/10/2019
64 months ago
22 µg/L
Meets Reporting Threshold
68 Stevens Road Sample port
68 Stevens Road
10/10/2019
64 months ago
18.3 µg/L
Meets Reporting Threshold
70 Ashmont Street Sample port
70 Ashmont Street
10/10/2019
64 months ago
30.1 µg/L
⚠️ Exceeds 50% of Reference Level

HAA6Br (six brominated haloacetic acids)

HAA6Br (six brominated haloacetic acids) are a class of Disinfection Byproducts that includes Bromochloroacetic Acid, Bromodichloroacetic Acid, Dibromoacetic Acid, Dibromochloroacetic Acid, Monobromoacetic Acid, Tribromoacetic Acid and has a minimum reporting level of 0 µg/L and is a potential threat to human health. Learn more about HAA6Br (six brominated haloacetic acids).

Standpipe Sample port
Standpipe
10/10/2019
64 months ago
37.3 µg/L
50 New Gardner Neck Road Sample port
50 New Gardner Neck Road
10/10/2019
64 months ago
42 µg/L
68 Stevens Road Sample port
68 Stevens Road
10/10/2019
64 months ago
35.3 µg/L
70 Ashmont Street Sample port
70 Ashmont Street
10/10/2019
64 months ago
49.9 µg/L

HAA9 (nine haloacetic acids)

HAA9 (nine haloacetic acids) are a class of Disinfection Byproducts that includes Bromochloroacetic Acid, Bromodichloroacetic Acid, Chlorodibromoacetic Acid, Dibromoacetic Acid, Dichloroacetic Acid, Monobromoacetic Acid, Monochloroacetic Acid, Tribromoacetic Acid, Trichloroacetic Acid and has a minimum reporting level of 0 µg/L and is a potential threat to human health. Learn more about HAA9 (nine haloacetic acids).

Standpipe Sample port
Standpipe
10/10/2019
64 months ago
40.3 µg/L
50 New Gardner Neck Road Sample port
50 New Gardner Neck Road
10/10/2019
64 months ago
46.2 µg/L
68 Stevens Road Sample port
68 Stevens Road
10/10/2019
64 months ago
37.8 µg/L
70 Ashmont Street Sample port
70 Ashmont Street
10/10/2019
64 months ago
53.1 µg/L

alpha-hexachlorocyclohexane

alpha-hexachlorocyclohexane is a chemical contaminant that has a reference level of 0.006 µg/L. All the latest water samples for Swansea Water District showed levels of alpha-hexachlorocyclohexane that were below unsafe concentration levels. Learn more about alpha-hexachlorocyclohexane.

Entry Point from Midwood Treatment
Midwood Well 1
10/10/2019
64 months ago
<0.01 µg/L
Below Reporting Level
Entry Point from Maker Treatment
Maker Wells 4 & 5
10/9/2019
65 months ago
<0.01 µg/L
Below Reporting Level
Entry Point from Borge Treatment
Borge Wells 7 & 11
10/9/2019
65 months ago
<0.01 µg/L
Below Reporting Level
Entry Point from Hornbine Treatment
Hornbine Well 8
10/9/2019
65 months ago
<0.01 µg/L
Below Reporting Level
Entry Point from Desalination Facility
Desalination Facility
10/9/2019
65 months ago
<0.01 µg/L
Below Reporting Level

anatoxin-a

anatoxin-a is a chemical contaminant that is a potential threat to human health. Learn more about anatoxin-a.

Entry Point from Hornbine Treatment
Hornbine Well 8
9/19/2018
77 months ago
<0.03 µg/L
Below Reporting Level
Entry Point from Desalination Facility
Desalination Facility
9/19/2018
77 months ago
<0.03 µg/L
Below Reporting Level

Butylated Hydroxyanisole

Butylated Hydroxyanisole is a chemical contaminant that is a potential threat to human health. Learn more about Butylated Hydroxyanisole.

Entry Point from Midwood Treatment
Midwood Well 1
10/10/2019
64 months ago
<0.03 µg/L
Below Reporting Level
Entry Point from Maker Treatment
Maker Wells 4 & 5
10/10/2019
64 months ago
<0.03 µg/L
Below Reporting Level
Entry Point from Borge Treatment
Borge Wells 7 & 11
10/10/2019
64 months ago
<0.03 µg/L
Below Reporting Level
Entry Point from Hornbine Treatment
Hornbine Well 8
10/10/2019
64 months ago
<0.03 µg/L
Below Reporting Level
Entry Point from Desalination Facility
Desalination Facility
10/10/2019
64 months ago
<0.03 µg/L
Below Reporting Level

chlorpyrifos

chlorpyrifos is a chemical contaminant that has a reference level of 2 µg/L. All the latest water samples for Swansea Water District showed levels of chlorpyrifos that were below unsafe concentration levels. Learn more about chlorpyrifos.

Entry Point from Midwood Treatment
Midwood Well 1
10/10/2019
64 months ago
<0.03 µg/L
Below Reporting Level
Entry Point from Maker Treatment
Maker Wells 4 & 5
10/9/2019
65 months ago
<0.03 µg/L
Below Reporting Level
Entry Point from Borge Treatment
Borge Wells 7 & 11
10/9/2019
65 months ago
<0.03 µg/L
Below Reporting Level
Entry Point from Hornbine Treatment
Hornbine Well 8
10/9/2019
65 months ago
<0.03 µg/L
Below Reporting Level
Entry Point from Desalination Facility
Desalination Facility
10/9/2019
65 months ago
<0.03 µg/L
Below Reporting Level

cylindrospermopsin

cylindrospermopsin is a chemical contaminant that has a reference level of 0.7 µg/L. All the latest water samples for Swansea Water District showed levels of cylindrospermopsin that were below unsafe concentration levels. Learn more about cylindrospermopsin.

Entry Point from Hornbine Treatment
Hornbine Well 8
9/19/2018
77 months ago
<0.09 µg/L
Below Reporting Level
Entry Point from Desalination Facility
Desalination Facility
9/19/2018
77 months ago
<0.09 µg/L
Below Reporting Level

dimethipin

dimethipin is a chemical contaminant that has a reference level of 140 µg/L. All the latest water samples for Swansea Water District showed levels of dimethipin that were below unsafe concentration levels. Learn more about dimethipin.

Entry Point from Midwood Treatment
Midwood Well 1
10/10/2019
64 months ago
<0.2 µg/L
Below Reporting Level
Entry Point from Maker Treatment
Maker Wells 4 & 5
10/9/2019
65 months ago
<0.2 µg/L
Below Reporting Level
Entry Point from Borge Treatment
Borge Wells 7 & 11
10/9/2019
65 months ago
<0.2 µg/L
Below Reporting Level
Entry Point from Hornbine Treatment
Hornbine Well 8
10/9/2019
65 months ago
<0.2 µg/L
Below Reporting Level
Entry Point from Desalination Facility
Desalination Facility
10/9/2019
65 months ago
<0.2 µg/L
Below Reporting Level

ethoprop

ethoprop is a chemical contaminant that has a reference level of 1.14 µg/L. All the latest water samples for Swansea Water District showed levels of ethoprop that were below unsafe concentration levels. Learn more about ethoprop.

Entry Point from Midwood Treatment
Midwood Well 1
10/10/2019
64 months ago
<0.03 µg/L
Below Reporting Level
Entry Point from Maker Treatment
Maker Wells 4 & 5
10/9/2019
65 months ago
<0.03 µg/L
Below Reporting Level
Entry Point from Borge Treatment
Borge Wells 7 & 11
10/9/2019
65 months ago
<0.03 µg/L
Below Reporting Level
Entry Point from Hornbine Treatment
Hornbine Well 8
10/9/2019
65 months ago
<0.03 µg/L
Below Reporting Level
Entry Point from Desalination Facility
Desalination Facility
10/9/2019
65 months ago
<0.03 µg/L
Below Reporting Level

Germanium

Germanium is a chemical contaminant that is a potential threat to human health. Learn more about Germanium.

Entry Point from Midwood Treatment
Midwood Well 1
10/10/2019
64 months ago
<0.3 µg/L
Below Reporting Level
Entry Point from Maker Treatment
Maker Wells 4 & 5
10/10/2019
64 months ago
<0.3 µg/L
Below Reporting Level
Entry Point from Borge Treatment
Borge Wells 7 & 11
1/6/2020
62 months ago
<0.3 µg/L
Below Reporting Level
Entry Point from Hornbine Treatment
Hornbine Well 8
10/10/2019
64 months ago
<0.3 µg/L
Below Reporting Level
Entry Point from Desalination Facility
Desalination Facility
1/6/2020
62 months ago
<0.3 µg/L
Below Reporting Level

Manganese

Manganese is a chemical contaminant that has a reference level of 300 µg/L. Some (1 of 5 or 20%) of the latest water samples for Swansea Water District showed levels of Manganese that were at or above unsafe concentration levels. The maximum reported value was 1490 µg/L. Learn more about Manganese.

300µg/L
1490µg/L
Entry Point from Midwood Treatment
Midwood Well 1
10/10/2019
64 months ago
1490 µg/L
☠️ Exceeds Reference Level by 1190 µg/L
Entry Point from Maker Treatment
Maker Wells 4 & 5
10/10/2019
64 months ago
58.4 µg/L
Meets Reporting Threshold
Entry Point from Borge Treatment
Borge Wells 7 & 11
1/6/2020
62 months ago
113 µg/L
Meets Reporting Threshold
Entry Point from Hornbine Treatment
Hornbine Well 8
10/10/2019
64 months ago
2.4 µg/L
Meets Reporting Threshold
Entry Point from Desalination Facility
Desalination Facility
1/6/2020
62 months ago
13.7 µg/L
Meets Reporting Threshold

o-toluidine

o-toluidine is a chemical contaminant that is a potential threat to human health. Learn more about o-toluidine.

Entry Point from Midwood Treatment
Midwood Well 1
10/10/2019
64 months ago
<0.007 µg/L
Below Reporting Level
Entry Point from Maker Treatment
Maker Wells 4 & 5
10/10/2019
64 months ago
<0.007 µg/L
Below Reporting Level
Entry Point from Borge Treatment
Borge Wells 7 & 11
10/10/2019
64 months ago
<0.007 µg/L
Below Reporting Level
Entry Point from Hornbine Treatment
Hornbine Well 8
10/10/2019
64 months ago
<0.007 µg/L
Below Reporting Level
Entry Point from Desalination Facility
Desalination Facility
10/10/2019
64 months ago
<0.007 µg/L
Below Reporting Level

oxyfluorfen

oxyfluorfen is a chemical contaminant that has a reference level of 200 µg/L. All the latest water samples for Swansea Water District showed levels of oxyfluorfen that were below unsafe concentration levels. Learn more about oxyfluorfen.

Entry Point from Midwood Treatment
Midwood Well 1
10/10/2019
64 months ago
<0.05 µg/L
Below Reporting Level
Entry Point from Maker Treatment
Maker Wells 4 & 5
10/9/2019
65 months ago
<0.05 µg/L
Below Reporting Level
Entry Point from Borge Treatment
Borge Wells 7 & 11
10/9/2019
65 months ago
<0.05 µg/L
Below Reporting Level
Entry Point from Hornbine Treatment
Hornbine Well 8
10/9/2019
65 months ago
<0.05 µg/L
Below Reporting Level
Entry Point from Desalination Facility
Desalination Facility
10/9/2019
65 months ago
<0.05 µg/L
Below Reporting Level

profenofos

profenofos is a chemical contaminant that has a reference level of 0.3 µg/L. All the latest water samples for Swansea Water District showed levels of profenofos that were below unsafe concentration levels. Learn more about profenofos.

Entry Point from Midwood Treatment
Midwood Well 1
10/10/2019
64 months ago
<0.3 µg/L
Below Reporting Level
Entry Point from Maker Treatment
Maker Wells 4 & 5
10/9/2019
65 months ago
<0.3 µg/L
Below Reporting Level
Entry Point from Borge Treatment
Borge Wells 7 & 11
10/9/2019
65 months ago
<0.3 µg/L
Below Reporting Level
Entry Point from Hornbine Treatment
Hornbine Well 8
10/9/2019
65 months ago
<0.3 µg/L
Below Reporting Level
Entry Point from Desalination Facility
Desalination Facility
10/9/2019
65 months ago
<0.3 µg/L
Below Reporting Level

quinoline

quinoline is a chemical contaminant that has a reference level of 0.01 µg/L. All the latest water samples for Swansea Water District showed levels of quinoline that were below unsafe concentration levels. Learn more about quinoline.

Entry Point from Midwood Treatment
Midwood Well 1
10/10/2019
64 months ago
<0.02 µg/L
Below Reporting Level
Entry Point from Maker Treatment
Maker Wells 4 & 5
10/10/2019
64 months ago
<0.02 µg/L
Below Reporting Level
Entry Point from Borge Treatment
Borge Wells 7 & 11
10/10/2019
64 months ago
<0.02 µg/L
Below Reporting Level
Entry Point from Hornbine Treatment
Hornbine Well 8
10/10/2019
64 months ago
<0.02 µg/L
Below Reporting Level
Entry Point from Desalination Facility
Desalination Facility
10/10/2019
64 months ago
<0.02 µg/L
Below Reporting Level

tebuconazole

tebuconazole is a chemical contaminant that has a reference level of 190 µg/L. All the latest water samples for Swansea Water District showed levels of tebuconazole that were below unsafe concentration levels. Learn more about tebuconazole.

Entry Point from Midwood Treatment
Midwood Well 1
10/10/2019
64 months ago
<0.2 µg/L
Below Reporting Level
Entry Point from Maker Treatment
Maker Wells 4 & 5
10/9/2019
65 months ago
<0.2 µg/L
Below Reporting Level
Entry Point from Borge Treatment
Borge Wells 7 & 11
10/9/2019
65 months ago
<0.2 µg/L
Below Reporting Level
Entry Point from Hornbine Treatment
Hornbine Well 8
10/9/2019
65 months ago
<0.2 µg/L
Below Reporting Level
Entry Point from Desalination Facility
Desalination Facility
10/9/2019
65 months ago
<0.2 µg/L
Below Reporting Level

Total Microcystin

Total Microcystin is a chemical contaminant that has a reference level of 0.3 µg/L. All the latest water samples for Swansea Water District showed levels of Total Microcystin that were below unsafe concentration levels. Learn more about Total Microcystin.

Entry Point from Hornbine Treatment
Hornbine Well 8
9/19/2018
77 months ago
<0.3 µg/L
Below Reporting Level
Entry Point from Desalination Facility
Desalination Facility
9/19/2018
77 months ago
<0.3 µg/L
Below Reporting Level

Total Permethrin

Total Permethrin is a chemical contaminant that has a reference level of 3.344 µg/L. All the latest water samples for Swansea Water District showed levels of Total Permethrin that were below unsafe concentration levels. Learn more about Total Permethrin.

Entry Point from Midwood Treatment
Midwood Well 1
10/10/2019
64 months ago
<0.04 µg/L
Below Reporting Level
Entry Point from Maker Treatment
Maker Wells 4 & 5
10/9/2019
65 months ago
<0.04 µg/L
Below Reporting Level
Entry Point from Borge Treatment
Borge Wells 7 & 11
10/9/2019
65 months ago
<0.04 µg/L
Below Reporting Level
Entry Point from Hornbine Treatment
Hornbine Well 8
10/9/2019
65 months ago
<0.04 µg/L
Below Reporting Level
Entry Point from Desalination Facility
Desalination Facility
10/9/2019
65 months ago
<0.04 µg/L
Below Reporting Level

tribufos

tribufos is a chemical contaminant that has a reference level of 0.6 µg/L. All the latest water samples for Swansea Water District showed levels of tribufos that were below unsafe concentration levels. Learn more about tribufos.

Entry Point from Midwood Treatment
Midwood Well 1
10/10/2019
64 months ago
<0.07 µg/L
Below Reporting Level
Entry Point from Maker Treatment
Maker Wells 4 & 5
10/9/2019
65 months ago
<0.07 µg/L
Below Reporting Level
Entry Point from Borge Treatment
Borge Wells 7 & 11
10/9/2019
65 months ago
<0.07 µg/L
Below Reporting Level
Entry Point from Hornbine Treatment
Hornbine Well 8
10/9/2019
65 months ago
<0.07 µg/L
Below Reporting Level
Entry Point from Desalination Facility
Desalination Facility
10/9/2019
65 months ago
<0.07 µg/L
Below Reporting Level

Sampling Facilities

Facility NameWater Type/Source
Midwood Well 1Ground Water (GW)
Maker Wells 4 & 5Ground Water (GW)
Borge Wells 7 & 11Ground Water (GW)
Hornbine Well 8Ground Water (under direct influence of surface water) (GU)
StandpipeMultiple sources (MX)
50 New Gardner Neck RoadMultiple sources (MX)
68 Stevens RoadMultiple sources (MX)
70 Ashmont StreetMultiple sources (MX)
Desalination FacilityMultiple sources (MX)

FAQ

Is Swansea Water District tap water safe to drink?

When was Swansea Water District last tested for water contamination?

The latest water samples were taken between September 19th, 2018 and January 6th, 2020.