New York City (NY) Water Quality

New York City is a large public water system in EPA region 02 that provides tap water for the 10001 - 10014, 10017 - 10041, 10044, 10045, 10060, 10069, 10080, 10081, 10090, 10101 - 10126, 10129 - 10133, 10150 - 10179, 10199, 10211 - 10213, 10249, 10257 - 10261, 10268 - 10282, 10286, 10301 - 10314, 10452 - 10475, 11101 - 11104, 11109, 11201 - 11226, 11229 - 11239, 11242, 11243, 11247, 11251, 11252, 11351, 11352, 11355 - 11375, 11378 - 11381, 11386, 11411, 11414 - 11436, 11451, 11691 - 11695 zip codes. It has 5 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 New York City showed levels of 1-butanol that were below unsafe concentration levels. Learn more about 1-butanol.

Shaft 7 Tunnel 1
Tunnel 1 1S07
2/5/2019
73 months ago
<2.0 µg/L
Below Reporting Level
Shaft 3A Tunnel 2
Tunnel 2 1S03A
2/5/2019
73 months ago
<2.0 µg/L
Below Reporting Level
Shaft 3B Tunnel 3
Tunnel 3 1S03B
2/5/2019
73 months ago
<2.0 µg/L
Below Reporting Level
Croton Distribution Chamber Low Service Tunnel
Croton 1SCL1
2/5/2019
73 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 New York City showed levels of 2-methoxyethanol that were below unsafe concentration levels. Learn more about 2-methoxyethanol.

Shaft 7 Tunnel 1
Tunnel 1 1S07
2/5/2019
73 months ago
<0.4 µg/L
Below Reporting Level
Shaft 3A Tunnel 2
Tunnel 2 1S03A
2/5/2019
73 months ago
<0.4 µg/L
Below Reporting Level
Shaft 3B Tunnel 3
Tunnel 3 1S03B
2/5/2019
73 months ago
<0.4 µg/L
Below Reporting Level
Croton Distribution Chamber Low Service Tunnel
Croton 1SCL1
2/5/2019
73 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 New York City showed levels of 2-propen-1-ol (Allyl Alcohol) that were below unsafe concentration levels. Learn more about 2-propen-1-ol (Allyl Alcohol).

Shaft 7 Tunnel 1
Tunnel 1 1S07
2/5/2019
73 months ago
<0.5 µg/L
Below Reporting Level
Shaft 3A Tunnel 2
Tunnel 2 1S03A
2/5/2019
73 months ago
<0.5 µg/L
Below Reporting Level
Shaft 3B Tunnel 3
Tunnel 3 1S03B
2/5/2019
73 months ago
<0.5 µg/L
Below Reporting Level
Croton Distribution Chamber Low Service Tunnel
Croton 1SCL1
2/5/2019
73 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 New York City showed levels of HAA5 (five regulated haloacetic acids) that were below unsafe concentration levels. The maximum reported value was 54 µg/L. Learn more about HAA5 (five regulated haloacetic acids).

54µg/L
Site 15150
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
49 µg/L
⚠️ Exceeds 50% of Reference Level
Site 18650
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
40 µg/L
⚠️ Exceeds 50% of Reference Level
Site 23450
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
38 µg/L
⚠️ Exceeds 50% of Reference Level
Site 24350
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
50 µg/L
⚠️ Exceeds 50% of Reference Level
Site 31750
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
44 µg/L
⚠️ Exceeds 50% of Reference Level
Site 31850
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
49 µg/L
⚠️ Exceeds 50% of Reference Level
Site 32350
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
40 µg/L
⚠️ Exceeds 50% of Reference Level
Site 33450
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
36.3 µg/L
⚠️ Exceeds 50% of Reference Level
Site 33950
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
37.3 µg/L
⚠️ Exceeds 50% of Reference Level
Site 37950
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
43 µg/L
⚠️ Exceeds 50% of Reference Level
Site 38250
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
48 µg/L
⚠️ Exceeds 50% of Reference Level
Site 39650
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
51 µg/L
⚠️ Exceeds 50% of Reference Level
Site 44350
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
47 µg/L
⚠️ Exceeds 50% of Reference Level
Site 45250
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
45 µg/L
⚠️ Exceeds 50% of Reference Level
Site 50250
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
45 µg/L
⚠️ Exceeds 50% of Reference Level
Site 50750
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
48 µg/L
⚠️ Exceeds 50% of Reference Level
Site 50850
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
47 µg/L
⚠️ Exceeds 50% of Reference Level
Site 52050
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
50 µg/L
⚠️ Exceeds 50% of Reference Level
Site 58650
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
54 µg/L
⚠️ Exceeds 50% of Reference Level
Site 77650
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
45 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).

Site 15150
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
4 µg/L
Site 18650
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
3.6 µg/L
Site 23450
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
2.8 µg/L
Site 24350
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
3.4 µg/L
Site 31750
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
3.5 µg/L
Site 31850
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
4 µg/L
Site 32350
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
6.15 µg/L
Site 33450
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
7.77 µg/L
Site 33950
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
7.96 µg/L
Site 37950
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
3.6 µg/L
Site 38250
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
3.9 µg/L
Site 39650
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
4 µg/L
Site 44350
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
4.81 µg/L
Site 45250
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
3.4 µg/L
Site 50250
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
3.4 µg/L
Site 50750
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
3.3 µg/L
Site 50850
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
3.3 µg/L
Site 52050
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
3.6 µg/L
Site 58650
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
3.8 µg/L
Site 77650
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
3.4 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).

Site 15150
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
53 µg/L
Site 18650
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
43.6 µg/L
Site 23450
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
40.8 µg/L
Site 24350
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
53.4 µg/L
Site 31750
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
47.5 µg/L
Site 31850
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
53 µg/L
Site 32350
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
46.15 µg/L
Site 33450
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
43.77 µg/L
Site 33950
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
44.96 µg/L
Site 37950
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
46.6 µg/L
Site 38250
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
51.9 µg/L
Site 39650
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
55 µg/L
Site 44350
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
51.81 µg/L
Site 45250
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
48.4 µg/L
Site 50250
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
48.4 µg/L
Site 50750
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
51.3 µg/L
Site 50850
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
50.3 µg/L
Site 52050
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
53.6 µg/L
Site 58650
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
57.8 µg/L
Site 77650
Stage 2 DBP Distribution Sampling Location
2/5/2019
73 months ago
48.4 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 New York City showed levels of alpha-hexachlorocyclohexane that were below unsafe concentration levels. Learn more about alpha-hexachlorocyclohexane.

Shaft 7 Tunnel 1
Tunnel 1 1S07
2/5/2019
73 months ago
<0.01 µg/L
Below Reporting Level
Shaft 3A Tunnel 2
Tunnel 2 1S03A
2/5/2019
73 months ago
<0.01 µg/L
Below Reporting Level
Shaft 3B Tunnel 3
Tunnel 3 1S03B
2/5/2019
73 months ago
<0.01 µg/L
Below Reporting Level
Croton Distribution Chamber Low Service Tunnel
Croton 1SCL1
2/5/2019
73 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.

Shaft 7 Tunnel 1
Tunnel 1 1S07
9/26/2018
77 months ago
<0.03 µg/L
Below Reporting Level
Shaft 3A Tunnel 2
Tunnel 2 1S03A
9/26/2018
77 months ago
<0.03 µg/L
Below Reporting Level
Shaft 3B Tunnel 3
Tunnel 3 1S03B
9/26/2018
77 months ago
<0.03 µg/L
Below Reporting Level
Croton Distribution Chamber Low Service Tunnel
Croton 1SCL1
9/26/2018
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.

Shaft 7 Tunnel 1
Tunnel 1 1S07
4/10/2019
71 months ago
<0.03 µg/L
Below Reporting Level
Shaft 3A Tunnel 2
Tunnel 2 1S03A
3/14/2019
71 months ago
<0.03 µg/L
Below Reporting Level
Shaft 3B Tunnel 3
Tunnel 3 1S03B
3/14/2019
71 months ago
<0.03 µg/L
Below Reporting Level
Croton Distribution Chamber Low Service Tunnel
Croton 1SCL1
3/14/2019
71 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 New York City showed levels of chlorpyrifos that were below unsafe concentration levels. Learn more about chlorpyrifos.

Shaft 7 Tunnel 1
Tunnel 1 1S07
2/5/2019
73 months ago
<0.03 µg/L
Below Reporting Level
Shaft 3A Tunnel 2
Tunnel 2 1S03A
2/5/2019
73 months ago
<0.03 µg/L
Below Reporting Level
Shaft 3B Tunnel 3
Tunnel 3 1S03B
2/5/2019
73 months ago
<0.03 µg/L
Below Reporting Level
Croton Distribution Chamber Low Service Tunnel
Croton 1SCL1
2/5/2019
73 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 New York City showed levels of cylindrospermopsin that were below unsafe concentration levels. Learn more about cylindrospermopsin.

Shaft 7 Tunnel 1
Tunnel 1 1S07
9/26/2018
77 months ago
<0.09 µg/L
Below Reporting Level
Shaft 3A Tunnel 2
Tunnel 2 1S03A
9/26/2018
77 months ago
<0.09 µg/L
Below Reporting Level
Shaft 3B Tunnel 3
Tunnel 3 1S03B
9/26/2018
77 months ago
<0.09 µg/L
Below Reporting Level
Croton Distribution Chamber Low Service Tunnel
Croton 1SCL1
9/26/2018
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 New York City showed levels of dimethipin that were below unsafe concentration levels. Learn more about dimethipin.

Shaft 7 Tunnel 1
Tunnel 1 1S07
2/5/2019
73 months ago
<0.2 µg/L
Below Reporting Level
Shaft 3A Tunnel 2
Tunnel 2 1S03A
2/5/2019
73 months ago
<0.2 µg/L
Below Reporting Level
Shaft 3B Tunnel 3
Tunnel 3 1S03B
2/5/2019
73 months ago
<0.2 µg/L
Below Reporting Level
Croton Distribution Chamber Low Service Tunnel
Croton 1SCL1
2/5/2019
73 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 New York City showed levels of ethoprop that were below unsafe concentration levels. Learn more about ethoprop.

Shaft 7 Tunnel 1
Tunnel 1 1S07
2/5/2019
73 months ago
<0.03 µg/L
Below Reporting Level
Shaft 3A Tunnel 2
Tunnel 2 1S03A
2/5/2019
73 months ago
<0.03 µg/L
Below Reporting Level
Shaft 3B Tunnel 3
Tunnel 3 1S03B
2/5/2019
73 months ago
<0.03 µg/L
Below Reporting Level
Croton Distribution Chamber Low Service Tunnel
Croton 1SCL1
2/5/2019
73 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.

Shaft 7 Tunnel 1
Tunnel 1 1S07
2/5/2019
73 months ago
<0.3 µg/L
Below Reporting Level
Shaft 3A Tunnel 2
Tunnel 2 1S03A
2/5/2019
73 months ago
<0.3 µg/L
Below Reporting Level
Shaft 3B Tunnel 3
Tunnel 3 1S03B
2/5/2019
73 months ago
<0.3 µg/L
Below Reporting Level
Croton Distribution Chamber Low Service Tunnel
Croton 1SCL1
2/5/2019
73 months ago
<0.3 µg/L
Below Reporting Level

Manganese

Manganese is a chemical contaminant that has a reference level of 300 µg/L. All the latest water samples for New York City showed levels of Manganese that were below unsafe concentration levels. The maximum reported value was 13 µg/L. Learn more about Manganese.

Shaft 7 Tunnel 1
Tunnel 1 1S07
2/5/2019
73 months ago
11 µg/L
Meets Reporting Threshold
Shaft 3A Tunnel 2
Tunnel 2 1S03A
2/5/2019
73 months ago
12 µg/L
Meets Reporting Threshold
Shaft 3B Tunnel 3
Tunnel 3 1S03B
2/5/2019
73 months ago
13 µg/L
Meets Reporting Threshold
Croton Distribution Chamber Low Service Tunnel
Croton 1SCL1
2/5/2019
73 months ago
4.3 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.

Shaft 7 Tunnel 1
Tunnel 1 1S07
4/10/2019
71 months ago
<0.007 µg/L
Below Reporting Level
Shaft 3A Tunnel 2
Tunnel 2 1S03A
3/14/2019
71 months ago
<0.007 µg/L
Below Reporting Level
Shaft 3B Tunnel 3
Tunnel 3 1S03B
3/14/2019
71 months ago
<0.007 µg/L
Below Reporting Level
Croton Distribution Chamber Low Service Tunnel
Croton 1SCL1
3/14/2019
71 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 New York City showed levels of oxyfluorfen that were below unsafe concentration levels. Learn more about oxyfluorfen.

Shaft 7 Tunnel 1
Tunnel 1 1S07
2/5/2019
73 months ago
<0.05 µg/L
Below Reporting Level
Shaft 3A Tunnel 2
Tunnel 2 1S03A
2/5/2019
73 months ago
<0.05 µg/L
Below Reporting Level
Shaft 3B Tunnel 3
Tunnel 3 1S03B
2/5/2019
73 months ago
<0.05 µg/L
Below Reporting Level
Croton Distribution Chamber Low Service Tunnel
Croton 1SCL1
2/5/2019
73 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 New York City showed levels of profenofos that were below unsafe concentration levels. Learn more about profenofos.

Shaft 7 Tunnel 1
Tunnel 1 1S07
2/5/2019
73 months ago
<0.3 µg/L
Below Reporting Level
Shaft 3A Tunnel 2
Tunnel 2 1S03A
2/5/2019
73 months ago
<0.3 µg/L
Below Reporting Level
Shaft 3B Tunnel 3
Tunnel 3 1S03B
2/5/2019
73 months ago
<0.3 µg/L
Below Reporting Level
Croton Distribution Chamber Low Service Tunnel
Croton 1SCL1
2/5/2019
73 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 New York City showed levels of quinoline that were below unsafe concentration levels. Learn more about quinoline.

Shaft 7 Tunnel 1
Tunnel 1 1S07
4/10/2019
71 months ago
<0.02 µg/L
Below Reporting Level
Shaft 3A Tunnel 2
Tunnel 2 1S03A
3/14/2019
71 months ago
<0.02 µg/L
Below Reporting Level
Shaft 3B Tunnel 3
Tunnel 3 1S03B
3/14/2019
71 months ago
<0.02 µg/L
Below Reporting Level
Croton Distribution Chamber Low Service Tunnel
Croton 1SCL1
3/14/2019
71 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 New York City showed levels of tebuconazole that were below unsafe concentration levels. Learn more about tebuconazole.

Shaft 7 Tunnel 1
Tunnel 1 1S07
2/5/2019
73 months ago
<0.2 µg/L
Below Reporting Level
Shaft 3A Tunnel 2
Tunnel 2 1S03A
2/5/2019
73 months ago
<0.2 µg/L
Below Reporting Level
Shaft 3B Tunnel 3
Tunnel 3 1S03B
2/5/2019
73 months ago
<0.2 µg/L
Below Reporting Level
Croton Distribution Chamber Low Service Tunnel
Croton 1SCL1
2/5/2019
73 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 New York City showed levels of Total Microcystin that were below unsafe concentration levels. Learn more about Total Microcystin.

Shaft 7 Tunnel 1
Tunnel 1 1S07
9/26/2018
77 months ago
<0.3 µg/L
Below Reporting Level
Shaft 3A Tunnel 2
Tunnel 2 1S03A
9/26/2018
77 months ago
<0.3 µg/L
Below Reporting Level
Shaft 3B Tunnel 3
Tunnel 3 1S03B
9/26/2018
77 months ago
<0.3 µg/L
Below Reporting Level
Croton Distribution Chamber Low Service Tunnel
Croton 1SCL1
9/26/2018
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 New York City showed levels of Total Permethrin that were below unsafe concentration levels. Learn more about Total Permethrin.

Shaft 7 Tunnel 1
Tunnel 1 1S07
2/5/2019
73 months ago
<0.04 µg/L
Below Reporting Level
Shaft 3A Tunnel 2
Tunnel 2 1S03A
2/5/2019
73 months ago
<0.04 µg/L
Below Reporting Level
Shaft 3B Tunnel 3
Tunnel 3 1S03B
2/5/2019
73 months ago
<0.04 µg/L
Below Reporting Level
Croton Distribution Chamber Low Service Tunnel
Croton 1SCL1
2/5/2019
73 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 New York City showed levels of tribufos that were below unsafe concentration levels. Learn more about tribufos.

Shaft 7 Tunnel 1
Tunnel 1 1S07
2/5/2019
73 months ago
<0.07 µg/L
Below Reporting Level
Shaft 3A Tunnel 2
Tunnel 2 1S03A
2/5/2019
73 months ago
<0.07 µg/L
Below Reporting Level
Shaft 3B Tunnel 3
Tunnel 3 1S03B
2/5/2019
73 months ago
<0.07 µg/L
Below Reporting Level
Croton Distribution Chamber Low Service Tunnel
Croton 1SCL1
2/5/2019
73 months ago
<0.07 µg/L
Below Reporting Level

Sampling Facilities

Facility NameWater Type/Source
Tunnel 1 1S07Surface Water (SW)
Tunnel 2 1S03ASurface Water (SW)
Tunnel 3 1S03BSurface Water (SW)
Croton 1SCL1Surface Water (SW)
Stage 2 DBP Distribution Sampling LocationSurface Water (SW)

FAQ

Is New York City tap water safe to drink?

When was New York City last tested for water contamination?

The latest water samples were taken between September 26th, 2018 and April 10th, 2019.