City of Baltimore is a large public water system in EPA region 03 that provides tap water for the 21013, 21030, 21031, 21051, 21052, 21071, 21085, 21092, 21117, 21131, 21136, 21156, 21163, 21202 - 21224, 21228 - 21231, 21234 - 21237, 21240, 21241, 21250, 21251, 21264, 21273, 21278, 21279, 21282, 21287, 21290, 21298 zip codes. It has 4 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 Baltimore showed levels of 1-butanol that were below unsafe concentration levels. Learn more about 1-butanol.
| WTP POE Ashburton Filter Plant
| 1/9/2019 79 months ago
| <2.0 µg/L Below Reporting Level
|
|---|---|---|
| WTP POE Montebello Filter Plant #1
| 1/9/2019 79 months ago
| <2.0 µg/L Below Reporting Level
|
| WTP POE Montebello Filter Plant #2
| 1/9/2019 79 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 Baltimore showed levels of 2-methoxyethanol that were below unsafe concentration levels. Learn more about 2-methoxyethanol.
| WTP POE Ashburton Filter Plant
| 1/9/2019 79 months ago
| <0.4 µg/L Below Reporting Level
|
|---|---|---|
| WTP POE Montebello Filter Plant #1
| 1/9/2019 79 months ago
| <0.4 µg/L Below Reporting Level
|
| WTP POE Montebello Filter Plant #2
| 1/9/2019 79 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 Baltimore showed levels of 2-propen-1-ol (Allyl Alcohol) that were below unsafe concentration levels. Learn more about 2-propen-1-ol (Allyl Alcohol).
| WTP POE Ashburton Filter Plant
| 1/9/2019 79 months ago
| <0.5 µg/L Below Reporting Level
|
|---|---|---|
| WTP POE Montebello Filter Plant #1
| 1/9/2019 79 months ago
| <0.5 µg/L Below Reporting Level
|
| WTP POE Montebello Filter Plant #2
| 1/9/2019 79 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 Baltimore showed levels of HAA5 (five regulated haloacetic acids) that were below unsafe concentration levels. The maximum reported value was 51.6 µg/L. Learn more about HAA5 (five regulated haloacetic acids).
| 20 Engine Distribution System
| 1/9/2019 79 months ago
| 30.6 µg/L ⚠️ Exceeds 50% of Reference Level
|
|---|---|---|
| Security Distribution System
| 1/9/2019 79 months ago
| 37.9 µg/L ⚠️ Exceeds 50% of Reference Level
|
| Deer Park Distribution System
| 1/9/2019 79 months ago
| 46.624 µg/L ⚠️ Exceeds 50% of Reference Level
|
| Reisterstown Autowash Distribution System
| 1/9/2019 79 months ago
| 46.631 µg/L ⚠️ Exceeds 50% of Reference Level
|
| 45 Truck Distribution System
| 1/9/2019 79 months ago
| 10.23 µg/L Meets Reporting Threshold
|
| Sparks Distribution System
| 1/9/2019 79 months ago
| 50.4 µg/L ⚠️ Exceeds 50% of Reference Level
|
| Hillendale Distribution System
| 1/9/2019 79 months ago
| 42.6 µg/L ⚠️ Exceeds 50% of Reference Level
|
| Carney Distribution System
| 1/9/2019 79 months ago
| 46.2 µg/L ⚠️ Exceeds 50% of Reference Level
|
| Wise & Bear Distribution System
| 1/9/2019 79 months ago
| 41.4 µg/L ⚠️ Exceeds 50% of Reference Level
|
| Colgate Distribution System
| 1/9/2019 79 months ago
| 50.9 µg/L ⚠️ Exceeds 50% of Reference Level
|
| Harewood Park Distribution System
| 1/9/2019 79 months ago
| 5.77 µg/L Meets Reporting Threshold
|
| 36 Engine Distribution System
| 1/9/2019 79 months ago
| 39.3 µg/L ⚠️ Exceeds 50% of Reference Level
|
| Owings Mills Distribution System
| 1/9/2019 79 months ago
| 45.22 µg/L ⚠️ Exceeds 50% of Reference Level
|
| 5 Truck Distribution System
| 1/9/2019 79 months ago
| 39.2 µg/L ⚠️ Exceeds 50% of Reference Level
|
| Lutherville Distribution System
| 1/9/2019 79 months ago
| 51.6 µg/L ⚠️ Exceeds 50% of Reference Level
|
| 41 Engine Distribution System
| 1/9/2019 79 months ago
| 37.6 µg/L ⚠️ Exceeds 50% of Reference Level
|
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).
| 20 Engine Distribution System
| 1/9/2019 79 months ago
| 4.712 µg/L |
|---|---|---|
| Security Distribution System
| 1/9/2019 79 months ago
| 5.827 µg/L |
| Deer Park Distribution System
| 1/9/2019 79 months ago
| 7.092 µg/L |
| Reisterstown Autowash Distribution System
| 1/9/2019 79 months ago
| 6.86 µg/L |
| 45 Truck Distribution System
| 1/9/2019 79 months ago
| 1.568 µg/L |
| Sparks Distribution System
| 1/9/2019 79 months ago
| 6.137 µg/L |
| Hillendale Distribution System
| 1/9/2019 79 months ago
| 4.93 µg/L |
| Carney Distribution System
| 1/9/2019 79 months ago
| 5.06 µg/L |
| Wise & Bear Distribution System
| 1/9/2019 79 months ago
| 4.35 µg/L |
| Colgate Distribution System
| 1/9/2019 79 months ago
| 5.08 µg/L |
| Harewood Park Distribution System
| 1/9/2019 79 months ago
| .449 µg/L |
| 36 Engine Distribution System
| 1/9/2019 79 months ago
| 4.48 µg/L |
| Owings Mills Distribution System
| 1/9/2019 79 months ago
| 6.35 µg/L |
| 5 Truck Distribution System
| 1/9/2019 79 months ago
| 4.45 µg/L |
| Lutherville Distribution System
| 1/9/2019 79 months ago
| 5.58 µg/L |
| 41 Engine Distribution System
| 1/9/2019 79 months ago
| 3.99 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).
| 20 Engine Distribution System
| 1/9/2019 79 months ago
| 35.312 µg/L |
|---|---|---|
| Security Distribution System
| 1/9/2019 79 months ago
| 43.727 µg/L |
| Deer Park Distribution System
| 1/9/2019 79 months ago
| 53.392 µg/L |
| Reisterstown Autowash Distribution System
| 1/9/2019 79 months ago
| 53.16 µg/L |
| 45 Truck Distribution System
| 1/9/2019 79 months ago
| 11.798 µg/L |
| Sparks Distribution System
| 1/9/2019 79 months ago
| 56.537 µg/L |
| Hillendale Distribution System
| 1/9/2019 79 months ago
| 47.53 µg/L |
| Carney Distribution System
| 1/9/2019 79 months ago
| 51.26 µg/L |
| Wise & Bear Distribution System
| 1/9/2019 79 months ago
| 45.75 µg/L |
| Colgate Distribution System
| 1/9/2019 79 months ago
| 55.98 µg/L |
| Harewood Park Distribution System
| 1/9/2019 79 months ago
| 6.219 µg/L |
| 36 Engine Distribution System
| 1/9/2019 79 months ago
| 43.78 µg/L |
| Owings Mills Distribution System
| 1/9/2019 79 months ago
| 51.25 µg/L |
| 5 Truck Distribution System
| 1/9/2019 79 months ago
| 43.65 µg/L |
| Lutherville Distribution System
| 1/9/2019 79 months ago
| 57.18 µg/L |
| 41 Engine Distribution System
| 1/9/2019 79 months ago
| 41.59 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 Baltimore showed levels of alpha-hexachlorocyclohexane that were below unsafe concentration levels. Learn more about alpha-hexachlorocyclohexane.
| WTP POE Ashburton Filter Plant
| 1/9/2019 79 months ago
| <0.01 µg/L Below Reporting Level
|
|---|---|---|
| WTP POE Montebello Filter Plant #1
| 1/9/2019 79 months ago
| <0.01 µg/L Below Reporting Level
|
| WTP POE Montebello Filter Plant #2
| 1/9/2019 79 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.
| WTP POE Ashburton Filter Plant
| 8/20/2018 83 months ago
| <0.03 µg/L Below Reporting Level
|
|---|---|---|
| WTP POE Montebello Filter Plant #1
| 8/20/2018 83 months ago
| <0.03 µg/L Below Reporting Level
|
| WTP POE Montebello Filter Plant #2
| 8/20/2018 83 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.
| WTP POE Ashburton Filter Plant
| 1/9/2019 79 months ago
| <0.03 µg/L Below Reporting Level
|
|---|---|---|
| WTP POE Montebello Filter Plant #1
| 2/5/2019 78 months ago
| <0.03 µg/L Below Reporting Level
|
| WTP POE Montebello Filter Plant #2
| 1/9/2019 79 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 Baltimore showed levels of chlorpyrifos that were below unsafe concentration levels. Learn more about chlorpyrifos.
| WTP POE Ashburton Filter Plant
| 1/9/2019 79 months ago
| <0.03 µg/L Below Reporting Level
|
|---|---|---|
| WTP POE Montebello Filter Plant #1
| 1/9/2019 79 months ago
| <0.03 µg/L Below Reporting Level
|
| WTP POE Montebello Filter Plant #2
| 1/9/2019 79 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 Baltimore showed levels of cylindrospermopsin that were below unsafe concentration levels. Learn more about cylindrospermopsin.
| WTP POE Ashburton Filter Plant
| 8/20/2018 83 months ago
| <0.09 µg/L Below Reporting Level
|
|---|---|---|
| WTP POE Montebello Filter Plant #1
| 8/20/2018 83 months ago
| <0.09 µg/L Below Reporting Level
|
| WTP POE Montebello Filter Plant #2
| 8/20/2018 83 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 Baltimore showed levels of dimethipin that were below unsafe concentration levels. Learn more about dimethipin.
| WTP POE Ashburton Filter Plant
| 1/9/2019 79 months ago
| <0.2 µg/L Below Reporting Level
|
|---|---|---|
| WTP POE Montebello Filter Plant #1
| 1/9/2019 79 months ago
| <0.2 µg/L Below Reporting Level
|
| WTP POE Montebello Filter Plant #2
| 1/9/2019 79 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 Baltimore showed levels of ethoprop that were below unsafe concentration levels. Learn more about ethoprop.
| WTP POE Ashburton Filter Plant
| 1/9/2019 79 months ago
| <0.03 µg/L Below Reporting Level
|
|---|---|---|
| WTP POE Montebello Filter Plant #1
| 1/9/2019 79 months ago
| <0.03 µg/L Below Reporting Level
|
| WTP POE Montebello Filter Plant #2
| 1/9/2019 79 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.
| WTP POE Ashburton Filter Plant
| 1/9/2019 79 months ago
| <0.3 µg/L Below Reporting Level
|
|---|---|---|
| WTP POE Montebello Filter Plant #1
| 1/9/2019 79 months ago
| <0.3 µg/L Below Reporting Level
|
| WTP POE Montebello Filter Plant #2
| 1/9/2019 79 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 Baltimore showed levels of Manganese that were below unsafe concentration levels. The maximum reported value was 0.601 µg/L. Learn more about Manganese.
| WTP POE Ashburton Filter Plant
| 1/9/2019 79 months ago
| <0.4 µg/L Below Reporting Level
|
|---|---|---|
| WTP POE Montebello Filter Plant #1
| 1/9/2019 79 months ago
| .601 µg/L Meets Reporting Threshold
|
| WTP POE Montebello Filter Plant #2
| 1/9/2019 79 months ago
| .517 µg/L Meets Reporting Threshold
|
o-toluidine is a chemical contaminant that is a potential threat to human health. Learn more about o-toluidine.
| WTP POE Ashburton Filter Plant
| 1/9/2019 79 months ago
| <0.007 µg/L Below Reporting Level
|
|---|---|---|
| WTP POE Montebello Filter Plant #1
| 2/5/2019 78 months ago
| <0.007 µg/L Below Reporting Level
|
| WTP POE Montebello Filter Plant #2
| 1/9/2019 79 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 Baltimore showed levels of oxyfluorfen that were below unsafe concentration levels. Learn more about oxyfluorfen.
| WTP POE Ashburton Filter Plant
| 1/9/2019 79 months ago
| <0.05 µg/L Below Reporting Level
|
|---|---|---|
| WTP POE Montebello Filter Plant #1
| 1/9/2019 79 months ago
| <0.05 µg/L Below Reporting Level
|
| WTP POE Montebello Filter Plant #2
| 1/9/2019 79 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 Baltimore showed levels of profenofos that were below unsafe concentration levels. Learn more about profenofos.
| WTP POE Ashburton Filter Plant
| 1/9/2019 79 months ago
| <0.3 µg/L Below Reporting Level
|
|---|---|---|
| WTP POE Montebello Filter Plant #1
| 1/9/2019 79 months ago
| <0.3 µg/L Below Reporting Level
|
| WTP POE Montebello Filter Plant #2
| 1/9/2019 79 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 Baltimore showed levels of quinoline that were below unsafe concentration levels. Learn more about quinoline.
| WTP POE Ashburton Filter Plant
| 1/9/2019 79 months ago
| <0.02 µg/L Below Reporting Level
|
|---|---|---|
| WTP POE Montebello Filter Plant #1
| 2/5/2019 78 months ago
| <0.02 µg/L Below Reporting Level
|
| WTP POE Montebello Filter Plant #2
| 1/9/2019 79 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 Baltimore showed levels of tebuconazole that were below unsafe concentration levels. Learn more about tebuconazole.
| WTP POE Ashburton Filter Plant
| 1/9/2019 79 months ago
| <0.2 µg/L Below Reporting Level
|
|---|---|---|
| WTP POE Montebello Filter Plant #1
| 1/9/2019 79 months ago
| <0.2 µg/L Below Reporting Level
|
| WTP POE Montebello Filter Plant #2
| 1/9/2019 79 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 Baltimore showed levels of Total Microcystin that were below unsafe concentration levels. Learn more about Total Microcystin.
| WTP POE Ashburton Filter Plant
| 8/20/2018 83 months ago
| <0.3 µg/L Below Reporting Level
|
|---|---|---|
| WTP POE Montebello Filter Plant #1
| 8/20/2018 83 months ago
| <0.3 µg/L Below Reporting Level
|
| WTP POE Montebello Filter Plant #2
| 8/20/2018 83 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 Baltimore showed levels of Total Permethrin that were below unsafe concentration levels. Learn more about Total Permethrin.
| WTP POE Ashburton Filter Plant
| 1/9/2019 79 months ago
| <0.04 µg/L Below Reporting Level
|
|---|---|---|
| WTP POE Montebello Filter Plant #1
| 1/9/2019 79 months ago
| <0.04 µg/L Below Reporting Level
|
| WTP POE Montebello Filter Plant #2
| 1/9/2019 79 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 Baltimore showed levels of tribufos that were below unsafe concentration levels. Learn more about tribufos.
| WTP POE Ashburton Filter Plant
| 1/9/2019 79 months ago
| <0.07 µg/L Below Reporting Level
|
|---|---|---|
| WTP POE Montebello Filter Plant #1
| 1/9/2019 79 months ago
| <0.07 µg/L Below Reporting Level
|
| WTP POE Montebello Filter Plant #2
| 1/9/2019 79 months ago
| <0.07 µg/L Below Reporting Level
|
| Facility Name | Water Type/Source |
|---|---|
| Ashburton Filter Plant | Surface Water (SW) |
| Montebello Filter Plant #1 | Surface Water (SW) |
| Montebello Filter Plant #2 | Surface Water (SW) |
| Distribution System | Surface Water (SW) |
The latest water samples were taken between August 20th, 2018 and February 5th, 2019.