City of Redmond Water is a large public water system in EPA region 10 that provides tap water for the 98033, 98053 zip codes. It has 6 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 City of Redmond Water showed levels of 1-butanol that were below unsafe concentration levels. Learn more about 1-butanol.
| Well 3 Treated Tap Well #3
| 10/10/2018 81 months ago
| <2.0 µg/L Below Reporting Level
|
|---|---|---|
| Well 5 Treated Tap Well #5
| 10/10/2018 81 months ago
| <2.0 µg/L Below Reporting Level
|
| Entry Point to Dist. System Well #1 & Well #2 Combined
| 10/10/2018 81 months ago
| <2.0 µg/L Below Reporting Level
|
| Entry Point to Dist. System Seattle Intertie
| 1/23/2019 78 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 City of Redmond Water showed levels of 2-methoxyethanol that were below unsafe concentration levels. Learn more about 2-methoxyethanol.
| Well 3 Treated Tap Well #3
| 10/10/2018 81 months ago
| <0.4 µg/L Below Reporting Level
|
|---|---|---|
| Well 5 Treated Tap Well #5
| 10/10/2018 81 months ago
| <0.4 µg/L Below Reporting Level
|
| Entry Point to Dist. System Well #1 & Well #2 Combined
| 10/10/2018 81 months ago
| <0.4 µg/L Below Reporting Level
|
| Entry Point to Dist. System Seattle Intertie
| 1/23/2019 78 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 City of Redmond Water showed levels of 2-propen-1-ol (Allyl Alcohol) that were below unsafe concentration levels. Learn more about 2-propen-1-ol (Allyl Alcohol).
| Well 3 Treated Tap Well #3
| 10/10/2018 81 months ago
| <0.5 µg/L Below Reporting Level
|
|---|---|---|
| Well 5 Treated Tap Well #5
| 10/10/2018 81 months ago
| <0.5 µg/L Below Reporting Level
|
| Entry Point to Dist. System Well #1 & Well #2 Combined
| 10/10/2018 81 months ago
| <0.5 µg/L Below Reporting Level
|
| Entry Point to Dist. System Seattle Intertie
| 1/23/2019 78 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 City of Redmond Water showed levels of HAA5 (five regulated haloacetic acids) that were below unsafe concentration levels. The maximum reported value was 27 µg/L. Learn more about HAA5 (five regulated haloacetic acids).
| 9633 174th Pl NE-HB Distribution System
| 10/8/2018 81 months ago
| 5.2 µg/L Meets Reporting Threshold
|
|---|---|---|
| Avignon SS Distribution System
| 10/8/2018 81 months ago
| 4.86 µg/L Meets Reporting Threshold
|
| 24th St SS Distribution System
| 1/23/2019 78 months ago
| 17.9 µg/L Meets Reporting Threshold
|
| Trilogy SS Distribution System
| 1/23/2019 78 months ago
| 21.6 µg/L Meets Reporting Threshold
|
| 11675 239th Ave NE-HB Distribution System
| 1/23/2019 78 months ago
| 13 µg/L Meets Reporting Threshold
|
| 10620 221st Lane NE Distribution System
| 1/23/2019 78 months ago
| 27 µg/L Meets Reporting Threshold
|
| 51st St SS Distribution System
| 1/23/2019 78 months ago
| 17.2 µg/L Meets Reporting Threshold
|
| Redmond Ridge SS Distribution System
| 1/23/2019 78 months ago
| 22.7 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).
| 9633 174th Pl NE-HB Distribution System
| 10/8/2018 81 months ago
| 4.62 µg/L |
|---|---|---|
| Avignon SS Distribution System
| 10/8/2018 81 months ago
| 2.08 µg/L |
| 24th St SS Distribution System
| 1/23/2019 78 months ago
| 1.3 µg/L |
| Trilogy SS Distribution System
| 1/23/2019 78 months ago
| 1.4 µg/L |
| 11675 239th Ave NE-HB Distribution System
| 1/23/2019 78 months ago
| 1.39 µg/L |
| 10620 221st Lane NE Distribution System
| 1/23/2019 78 months ago
| 1.77 µg/L |
| 51st St SS Distribution System
| 1/23/2019 78 months ago
| 1.55 µg/L |
| Redmond Ridge SS Distribution System
| 1/23/2019 78 months ago
| 1.8 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).
| 9633 174th Pl NE-HB Distribution System
| 10/8/2018 81 months ago
| 8.82 µg/L |
|---|---|---|
| Avignon SS Distribution System
| 10/8/2018 81 months ago
| 6.94 µg/L |
| 24th St SS Distribution System
| 1/23/2019 78 months ago
| 19.2 µg/L |
| Trilogy SS Distribution System
| 1/23/2019 78 months ago
| 23 µg/L |
| 11675 239th Ave NE-HB Distribution System
| 1/23/2019 78 months ago
| 14.39 µg/L |
| 10620 221st Lane NE Distribution System
| 1/23/2019 78 months ago
| 28.77 µg/L |
| 51st St SS Distribution System
| 1/23/2019 78 months ago
| 18.75 µg/L |
| Redmond Ridge SS Distribution System
| 1/23/2019 78 months ago
| 24.5 µg/L |
alpha-hexachlorocyclohexane is a chemical contaminant that has a reference level of 0.006 µg/L. All the latest water samples for City of Redmond Water showed levels of alpha-hexachlorocyclohexane that were below unsafe concentration levels. Learn more about alpha-hexachlorocyclohexane.
| Well 3 Treated Tap Well #3
| 10/10/2018 81 months ago
| <0.01 µg/L Below Reporting Level
|
|---|---|---|
| Well 5 Treated Tap Well #5
| 10/10/2018 81 months ago
| <0.01 µg/L Below Reporting Level
|
| Entry Point to Dist. System Well #1 & Well #2 Combined
| 11/1/2018 81 months ago
| <0.01 µg/L Below Reporting Level
|
| Entry Point to Dist. System Seattle Intertie
| 1/23/2019 78 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.
| Entry Point to Dist. System Seattle Intertie
| 7/18/2018 84 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.
| Well 3 Treated Tap Well #3
| 10/10/2018 81 months ago
| <0.03 µg/L Below Reporting Level
|
|---|---|---|
| Well 5 Treated Tap Well #5
| 10/10/2018 81 months ago
| <0.03 µg/L Below Reporting Level
|
| Entry Point to Dist. System Well #1 & Well #2 Combined
| 10/10/2018 81 months ago
| <0.03 µg/L Below Reporting Level
|
| Entry Point to Dist. System Seattle Intertie
| 1/23/2019 78 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 City of Redmond Water showed levels of chlorpyrifos that were below unsafe concentration levels. Learn more about chlorpyrifos.
| Well 3 Treated Tap Well #3
| 10/10/2018 81 months ago
| <0.03 µg/L Below Reporting Level
|
|---|---|---|
| Well 5 Treated Tap Well #5
| 10/10/2018 81 months ago
| <0.03 µg/L Below Reporting Level
|
| Entry Point to Dist. System Well #1 & Well #2 Combined
| 11/1/2018 81 months ago
| <0.03 µg/L Below Reporting Level
|
| Entry Point to Dist. System Seattle Intertie
| 1/23/2019 78 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 City of Redmond Water showed levels of cylindrospermopsin that were below unsafe concentration levels. Learn more about cylindrospermopsin.
| Entry Point to Dist. System Seattle Intertie
| 7/18/2018 84 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 City of Redmond Water showed levels of dimethipin that were below unsafe concentration levels. Learn more about dimethipin.
| Well 3 Treated Tap Well #3
| 10/10/2018 81 months ago
| <0.2 µg/L Below Reporting Level
|
|---|---|---|
| Well 5 Treated Tap Well #5
| 10/10/2018 81 months ago
| <0.2 µg/L Below Reporting Level
|
| Entry Point to Dist. System Well #1 & Well #2 Combined
| 11/1/2018 81 months ago
| <0.2 µg/L Below Reporting Level
|
| Entry Point to Dist. System Seattle Intertie
| 1/23/2019 78 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 City of Redmond Water showed levels of ethoprop that were below unsafe concentration levels. Learn more about ethoprop.
| Well 3 Treated Tap Well #3
| 10/10/2018 81 months ago
| <0.03 µg/L Below Reporting Level
|
|---|---|---|
| Well 5 Treated Tap Well #5
| 10/10/2018 81 months ago
| <0.03 µg/L Below Reporting Level
|
| Entry Point to Dist. System Well #1 & Well #2 Combined
| 11/1/2018 81 months ago
| <0.03 µg/L Below Reporting Level
|
| Entry Point to Dist. System Seattle Intertie
| 1/23/2019 78 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.
| Well 3 Treated Tap Well #3
| 10/10/2018 81 months ago
| <0.3 µg/L Below Reporting Level
|
|---|---|---|
| Well 5 Treated Tap Well #5
| 10/10/2018 81 months ago
| <0.3 µg/L Below Reporting Level
|
| Entry Point to Dist. System Well #1 & Well #2 Combined
| 10/10/2018 81 months ago
| <0.3 µg/L Below Reporting Level
|
| Entry Point to Dist. System Seattle Intertie
| 1/23/2019 78 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 City of Redmond Water showed levels of Manganese that were below unsafe concentration levels. The maximum reported value was 1.9 µg/L. Learn more about Manganese.
| Well 3 Treated Tap Well #3
| 10/10/2018 81 months ago
| <0.4 µg/L Below Reporting Level
|
|---|---|---|
| Well 5 Treated Tap Well #5
| 10/10/2018 81 months ago
| <0.4 µg/L Below Reporting Level
|
| Entry Point to Dist. System Well #1 & Well #2 Combined
| 10/10/2018 81 months ago
| 1.9 µg/L Meets Reporting Threshold
|
| Entry Point to Dist. System Seattle Intertie
| 1/23/2019 78 months ago
| 1.8 µg/L Meets Reporting Threshold
|
o-toluidine is a chemical contaminant that is a potential threat to human health. Learn more about o-toluidine.
| Well 3 Treated Tap Well #3
| 10/10/2018 81 months ago
| <0.007 µg/L Below Reporting Level
|
|---|---|---|
| Well 5 Treated Tap Well #5
| 10/10/2018 81 months ago
| <0.007 µg/L Below Reporting Level
|
| Entry Point to Dist. System Well #1 & Well #2 Combined
| 10/10/2018 81 months ago
| <0.007 µg/L Below Reporting Level
|
| Entry Point to Dist. System Seattle Intertie
| 1/23/2019 78 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 City of Redmond Water showed levels of oxyfluorfen that were below unsafe concentration levels. Learn more about oxyfluorfen.
| Well 3 Treated Tap Well #3
| 10/10/2018 81 months ago
| <0.05 µg/L Below Reporting Level
|
|---|---|---|
| Well 5 Treated Tap Well #5
| 10/10/2018 81 months ago
| <0.05 µg/L Below Reporting Level
|
| Entry Point to Dist. System Well #1 & Well #2 Combined
| 11/1/2018 81 months ago
| <0.05 µg/L Below Reporting Level
|
| Entry Point to Dist. System Seattle Intertie
| 1/23/2019 78 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 City of Redmond Water showed levels of profenofos that were below unsafe concentration levels. Learn more about profenofos.
| Well 3 Treated Tap Well #3
| 10/10/2018 81 months ago
| <0.3 µg/L Below Reporting Level
|
|---|---|---|
| Well 5 Treated Tap Well #5
| 10/10/2018 81 months ago
| <0.3 µg/L Below Reporting Level
|
| Entry Point to Dist. System Well #1 & Well #2 Combined
| 11/1/2018 81 months ago
| <0.3 µg/L Below Reporting Level
|
| Entry Point to Dist. System Seattle Intertie
| 1/23/2019 78 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 City of Redmond Water showed levels of quinoline that were below unsafe concentration levels. Learn more about quinoline.
| Well 3 Treated Tap Well #3
| 10/10/2018 81 months ago
| <0.02 µg/L Below Reporting Level
|
|---|---|---|
| Well 5 Treated Tap Well #5
| 10/10/2018 81 months ago
| <0.02 µg/L Below Reporting Level
|
| Entry Point to Dist. System Well #1 & Well #2 Combined
| 10/10/2018 81 months ago
| <0.02 µg/L Below Reporting Level
|
| Entry Point to Dist. System Seattle Intertie
| 1/23/2019 78 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 City of Redmond Water showed levels of tebuconazole that were below unsafe concentration levels. Learn more about tebuconazole.
| Well 3 Treated Tap Well #3
| 10/10/2018 81 months ago
| <0.2 µg/L Below Reporting Level
|
|---|---|---|
| Well 5 Treated Tap Well #5
| 10/10/2018 81 months ago
| <0.2 µg/L Below Reporting Level
|
| Entry Point to Dist. System Well #1 & Well #2 Combined
| 11/1/2018 81 months ago
| <0.2 µg/L Below Reporting Level
|
| Entry Point to Dist. System Seattle Intertie
| 1/23/2019 78 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 City of Redmond Water showed levels of Total Microcystin that were below unsafe concentration levels. Learn more about Total Microcystin.
| Entry Point to Dist. System Seattle Intertie
| 7/26/2018 84 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 City of Redmond Water showed levels of Total Permethrin that were below unsafe concentration levels. Learn more about Total Permethrin.
| Well 3 Treated Tap Well #3
| 10/10/2018 81 months ago
| <0.04 µg/L Below Reporting Level
|
|---|---|---|
| Well 5 Treated Tap Well #5
| 10/10/2018 81 months ago
| <0.04 µg/L Below Reporting Level
|
| Entry Point to Dist. System Well #1 & Well #2 Combined
| 11/1/2018 81 months ago
| <0.04 µg/L Below Reporting Level
|
| Entry Point to Dist. System Seattle Intertie
| 1/23/2019 78 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 City of Redmond Water showed levels of tribufos that were below unsafe concentration levels. Learn more about tribufos.
| Well 3 Treated Tap Well #3
| 10/10/2018 81 months ago
| <0.07 µg/L Below Reporting Level
|
|---|---|---|
| Well 5 Treated Tap Well #5
| 10/10/2018 81 months ago
| <0.07 µg/L Below Reporting Level
|
| Entry Point to Dist. System Well #1 & Well #2 Combined
| 11/1/2018 81 months ago
| <0.07 µg/L Below Reporting Level
|
| Entry Point to Dist. System Seattle Intertie
| 1/23/2019 78 months ago
| <0.07 µg/L Below Reporting Level
|
| Facility Name | Water Type/Source |
|---|---|
| Well #3 | Ground Water (GW) |
| Well #5 | Ground Water (GW) |
| Well #1 & Well #2 Combined | Ground Water (GW) |
| Distribution System | Ground Water (GW) |
| Distribution System | Surface Water (SW) |
| Seattle Intertie | Surface Water (SW) |
The latest water samples were taken between July 18th, 2018 and January 23rd, 2019.