Needham Water Dept. is a large public water system in EPA region 01 that provides tap water for the 02492 zip codes. It has 3 facilities where the water supply was tested for 23 chemical contaminants that impact tap water quality and human health.
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 Needham Water Dept. showed levels of 1-butanol that were below unsafe concentration levels. Learn more about 1-butanol.
| EPTDS - ND-01, St. Mary St. Station - Meter 160 MWRA CONNECTION
| 10/13/2020 56 months ago
| <2.0 µg/L Below Reporting Level
|
|---|---|---|
| EPTDS - Charles River WTP, Finished Charles River WTP
| 7/16/2020 59 months ago
| <2.0 µg/L Below Reporting Level
|
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 Needham Water Dept. showed levels of 2-methoxyethanol that were below unsafe concentration levels. Learn more about 2-methoxyethanol.
| EPTDS - ND-01, St. Mary St. Station - Meter 160 MWRA CONNECTION
| 10/13/2020 56 months ago
| <0.4 µg/L Below Reporting Level
|
|---|---|---|
| EPTDS - Charles River WTP, Finished Charles River WTP
| 7/16/2020 59 months ago
| <0.4 µg/L Below Reporting Level
|
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 Needham Water Dept. showed levels of 2-propen-1-ol (Allyl Alcohol) that were below unsafe concentration levels. Learn more about 2-propen-1-ol (Allyl Alcohol).
| EPTDS - ND-01, St. Mary St. Station - Meter 160 MWRA CONNECTION
| 10/13/2020 56 months ago
| <0.5 µg/L Below Reporting Level
|
|---|---|---|
| EPTDS - Charles River WTP, Finished Charles River WTP
| 7/16/2020 59 months ago
| <0.5 µg/L Below Reporting Level
|
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 Needham Water Dept. showed levels of HAA5 (five regulated haloacetic acids) that were below unsafe concentration levels. The maximum reported value was 6.93 µg/L. Learn more about HAA5 (five regulated haloacetic acids).
| DSDBP - High School, 609 Webster Street DISTRIBUTION SYSTEM
| 11/17/2020 55 months ago
| 5.066 µg/L Meets Reporting Threshold
|
|---|---|---|
| DSDBP - SLF Building, Central Avenue DISTRIBUTION SYSTEM
| 11/17/2020 55 months ago
| 3.022 µg/L Meets Reporting Threshold
|
| DSDBP - DPW, 470 Dedham Avenue DISTRIBUTION SYSTEM
| 11/17/2020 55 months ago
| 4.504 µg/L Meets Reporting Threshold
|
| DSDBP - St. Mary's Station DISTRIBUTION SYSTEM
| 11/17/2020 55 months ago
| 6.93 µg/L Meets Reporting Threshold
|
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).
| DSDBP - High School, 609 Webster Street DISTRIBUTION SYSTEM
| 11/17/2020 55 months ago
| 11.98 µg/L |
|---|---|---|
| DSDBP - SLF Building, Central Avenue DISTRIBUTION SYSTEM
| 11/17/2020 55 months ago
| 10.312 µg/L |
| DSDBP - DPW, 470 Dedham Avenue DISTRIBUTION SYSTEM
| 11/17/2020 55 months ago
| 11.45 µg/L |
| DSDBP - St. Mary's Station DISTRIBUTION SYSTEM
| 11/17/2020 55 months ago
| 13.24 µg/L |
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).
| DSDBP - High School, 609 Webster Street DISTRIBUTION SYSTEM
| 11/17/2020 55 months ago
| 15.026 µg/L |
|---|---|---|
| DSDBP - SLF Building, Central Avenue DISTRIBUTION SYSTEM
| 11/17/2020 55 months ago
| 12.642 µg/L |
| DSDBP - DPW, 470 Dedham Avenue DISTRIBUTION SYSTEM
| 11/17/2020 55 months ago
| 13.984 µg/L |
| DSDBP - St. Mary's Station DISTRIBUTION SYSTEM
| 11/17/2020 55 months ago
| 17.73 µg/L |
alpha-hexachlorocyclohexane is a chemical contaminant that has a reference level of 0.006 µg/L. All the latest water samples for Needham Water Dept. showed levels of alpha-hexachlorocyclohexane that were below unsafe concentration levels. Learn more about alpha-hexachlorocyclohexane.
| EPTDS - ND-01, St. Mary St. Station - Meter 160 MWRA CONNECTION
| 10/13/2020 56 months ago
| <0.01 µg/L Below Reporting Level
|
|---|---|---|
| EPTDS - Charles River WTP, Finished Charles River WTP
| 7/16/2020 59 months ago
| <0.01 µg/L Below Reporting Level
|
anatoxin-a is a chemical contaminant that is a potential threat to human health. Learn more about anatoxin-a.
| EPTDS - ND-01, St. Mary St. Station - Meter 160 MWRA CONNECTION
| 11/24/2020 55 months ago
| <0.03 µg/L Below Reporting Level
|
|---|
Butylated Hydroxyanisole is a chemical contaminant that is a potential threat to human health. Learn more about Butylated Hydroxyanisole.
| EPTDS - ND-01, St. Mary St. Station - Meter 160 MWRA CONNECTION
| 10/13/2020 56 months ago
| <0.03 µg/L Below Reporting Level
|
|---|---|---|
| EPTDS - Charles River WTP, Finished Charles River WTP
| 7/16/2020 59 months ago
| <0.03 µg/L Below Reporting Level
|
chlorpyrifos is a chemical contaminant that has a reference level of 2 µg/L. All the latest water samples for Needham Water Dept. showed levels of chlorpyrifos that were below unsafe concentration levels. Learn more about chlorpyrifos.
| EPTDS - ND-01, St. Mary St. Station - Meter 160 MWRA CONNECTION
| 10/13/2020 56 months ago
| <0.03 µg/L Below Reporting Level
|
|---|---|---|
| EPTDS - Charles River WTP, Finished Charles River WTP
| 7/16/2020 59 months ago
| <0.03 µg/L Below Reporting Level
|
cylindrospermopsin is a chemical contaminant that has a reference level of 0.7 µg/L. All the latest water samples for Needham Water Dept. showed levels of cylindrospermopsin that were below unsafe concentration levels. Learn more about cylindrospermopsin.
| EPTDS - ND-01, St. Mary St. Station - Meter 160 MWRA CONNECTION
| 11/24/2020 55 months ago
| <0.09 µg/L Below Reporting Level
|
|---|
dimethipin is a chemical contaminant that has a reference level of 140 µg/L. All the latest water samples for Needham Water Dept. showed levels of dimethipin that were below unsafe concentration levels. Learn more about dimethipin.
| EPTDS - ND-01, St. Mary St. Station - Meter 160 MWRA CONNECTION
| 10/13/2020 56 months ago
| <0.2 µg/L Below Reporting Level
|
|---|---|---|
| EPTDS - Charles River WTP, Finished Charles River WTP
| 7/16/2020 59 months ago
| <0.2 µg/L Below Reporting Level
|
ethoprop is a chemical contaminant that has a reference level of 1.14 µg/L. All the latest water samples for Needham Water Dept. showed levels of ethoprop that were below unsafe concentration levels. Learn more about ethoprop.
| EPTDS - ND-01, St. Mary St. Station - Meter 160 MWRA CONNECTION
| 10/13/2020 56 months ago
| <0.03 µg/L Below Reporting Level
|
|---|---|---|
| EPTDS - Charles River WTP, Finished Charles River WTP
| 7/16/2020 59 months ago
| <0.03 µg/L Below Reporting Level
|
Germanium is a chemical contaminant that is a potential threat to human health. Learn more about Germanium.
| EPTDS - ND-01, St. Mary St. Station - Meter 160 MWRA CONNECTION
| 10/13/2020 56 months ago
| <0.3 µg/L Below Reporting Level
|
|---|---|---|
| EPTDS - Charles River WTP, Finished Charles River WTP
| 7/16/2020 59 months ago
| <0.3 µg/L Below Reporting Level
|
Manganese is a chemical contaminant that has a reference level of 300 µg/L. All the latest water samples for Needham Water Dept. showed levels of Manganese that were below unsafe concentration levels. The maximum reported value was 4.46 µg/L. Learn more about Manganese.
| EPTDS - ND-01, St. Mary St. Station - Meter 160 MWRA CONNECTION
| 10/13/2020 56 months ago
| 4.46 µg/L Meets Reporting Threshold
|
|---|---|---|
| EPTDS - Charles River WTP, Finished Charles River WTP
| 7/16/2020 59 months ago
| <0.4 µg/L Below Reporting Level
|
o-toluidine is a chemical contaminant that is a potential threat to human health. Learn more about o-toluidine.
| EPTDS - ND-01, St. Mary St. Station - Meter 160 MWRA CONNECTION
| 10/13/2020 56 months ago
| <0.007 µg/L Below Reporting Level
|
|---|---|---|
| EPTDS - Charles River WTP, Finished Charles River WTP
| 7/16/2020 59 months ago
| <0.007 µg/L Below Reporting Level
|
oxyfluorfen is a chemical contaminant that has a reference level of 200 µg/L. All the latest water samples for Needham Water Dept. showed levels of oxyfluorfen that were below unsafe concentration levels. Learn more about oxyfluorfen.
| EPTDS - ND-01, St. Mary St. Station - Meter 160 MWRA CONNECTION
| 10/13/2020 56 months ago
| <0.05 µg/L Below Reporting Level
|
|---|---|---|
| EPTDS - Charles River WTP, Finished Charles River WTP
| 7/16/2020 59 months ago
| <0.05 µg/L Below Reporting Level
|
profenofos is a chemical contaminant that has a reference level of 0.3 µg/L. All the latest water samples for Needham Water Dept. showed levels of profenofos that were below unsafe concentration levels. Learn more about profenofos.
| EPTDS - ND-01, St. Mary St. Station - Meter 160 MWRA CONNECTION
| 10/13/2020 56 months ago
| <0.3 µg/L Below Reporting Level
|
|---|---|---|
| EPTDS - Charles River WTP, Finished Charles River WTP
| 7/16/2020 59 months ago
| <0.3 µg/L Below Reporting Level
|
quinoline is a chemical contaminant that has a reference level of 0.01 µg/L. All the latest water samples for Needham Water Dept. showed levels of quinoline that were below unsafe concentration levels. Learn more about quinoline.
| EPTDS - ND-01, St. Mary St. Station - Meter 160 MWRA CONNECTION
| 10/13/2020 56 months ago
| <0.02 µg/L Below Reporting Level
|
|---|---|---|
| EPTDS - Charles River WTP, Finished Charles River WTP
| 7/16/2020 59 months ago
| <0.02 µg/L Below Reporting Level
|
tebuconazole is a chemical contaminant that has a reference level of 190 µg/L. All the latest water samples for Needham Water Dept. showed levels of tebuconazole that were below unsafe concentration levels. Learn more about tebuconazole.
| EPTDS - ND-01, St. Mary St. Station - Meter 160 MWRA CONNECTION
| 10/13/2020 56 months ago
| <0.2 µg/L Below Reporting Level
|
|---|---|---|
| EPTDS - Charles River WTP, Finished Charles River WTP
| 7/16/2020 59 months ago
| <0.2 µg/L Below Reporting Level
|
Total Microcystin is a chemical contaminant that has a reference level of 0.3 µg/L. All the latest water samples for Needham Water Dept. showed levels of Total Microcystin that were below unsafe concentration levels. Learn more about Total Microcystin.
| EPTDS - ND-01, St. Mary St. Station - Meter 160 MWRA CONNECTION
| 11/24/2020 55 months ago
| <0.3 µg/L Below Reporting Level
|
|---|
Total Permethrin is a chemical contaminant that has a reference level of 3.344 µg/L. All the latest water samples for Needham Water Dept. showed levels of Total Permethrin that were below unsafe concentration levels. Learn more about Total Permethrin.
| EPTDS - ND-01, St. Mary St. Station - Meter 160 MWRA CONNECTION
| 10/13/2020 56 months ago
| <0.04 µg/L Below Reporting Level
|
|---|---|---|
| EPTDS - Charles River WTP, Finished Charles River WTP
| 7/16/2020 59 months ago
| <0.04 µg/L Below Reporting Level
|
tribufos is a chemical contaminant that has a reference level of 0.6 µg/L. All the latest water samples for Needham Water Dept. showed levels of tribufos that were below unsafe concentration levels. Learn more about tribufos.
| EPTDS - ND-01, St. Mary St. Station - Meter 160 MWRA CONNECTION
| 10/13/2020 56 months ago
| <0.07 µg/L Below Reporting Level
|
|---|---|---|
| EPTDS - Charles River WTP, Finished Charles River WTP
| 7/16/2020 59 months ago
| <0.07 µg/L Below Reporting Level
|
| Facility Name | Water Type/Source |
|---|---|
| MWRA CONNECTION | Surface Water (SW) |
| DISTRIBUTION SYSTEM | Multiple sources (MX) |
| Charles River WTP | Ground Water (GW) |
The latest water samples were taken between July 16th, 2020 and November 24th, 2020.