Lago Guajataca (PR) Water Quality

Lago Guajataca is a large public water system in EPA region 02 that provides tap water for the 00662 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 Lago Guajataca showed levels of 1-butanol that were below unsafe concentration levels. Learn more about 1-butanol.

PF GUAJATACA
PF GUAJATACA
6/4/2020
57 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 Lago Guajataca showed levels of 2-methoxyethanol that were below unsafe concentration levels. Learn more about 2-methoxyethanol.

PF GUAJATACA
PF GUAJATACA
6/4/2020
57 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 Lago Guajataca showed levels of 2-propen-1-ol (Allyl Alcohol) that were below unsafe concentration levels. Learn more about 2-propen-1-ol (Allyl Alcohol).

PF GUAJATACA
PF GUAJATACA
6/4/2020
57 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 Lago Guajataca showed levels of HAA5 (five regulated haloacetic acids) that were below unsafe concentration levels. The maximum reported value was 32.01 µg/L. Learn more about HAA5 (five regulated haloacetic acids).

32.01µg/L
HEAD START
HEAD START
6/4/2020
57 months ago
20.87 µg/L
Meets Reporting Threshold
LA CIMA BAKERY
LA CIMA BAKERY
6/4/2020
57 months ago
24.11 µg/L
Meets Reporting Threshold
RES. JOSE A. MUIZ
RES. JOSE A. MU�IZ
6/4/2020
57 months ago
32.01 µg/L
⚠️ Exceeds 50% of Reference Level
RES. JUAN M. QUILES
RES. JUAN M. QUILES
6/4/2020
57 months ago
23.36 µg/L
Meets Reporting Threshold

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).

HEAD START
HEAD START
6/4/2020
57 months ago
22.35 µg/L
LA CIMA BAKERY
LA CIMA BAKERY
6/4/2020
57 months ago
25.21 µg/L
RES. JOSE A. MUIZ
RES. JOSE A. MU�IZ
6/4/2020
57 months ago
23.14 µg/L
RES. JUAN M. QUILES
RES. JUAN M. QUILES
6/4/2020
57 months ago
23.61 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).

HEAD START
HEAD START
6/4/2020
57 months ago
41.62 µg/L
LA CIMA BAKERY
LA CIMA BAKERY
6/4/2020
57 months ago
47.62 µg/L
RES. JOSE A. MUIZ
RES. JOSE A. MU�IZ
6/4/2020
57 months ago
53.51 µg/L
RES. JUAN M. QUILES
RES. JUAN M. QUILES
6/4/2020
57 months ago
45.51 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 Lago Guajataca showed levels of alpha-hexachlorocyclohexane that were below unsafe concentration levels. Learn more about alpha-hexachlorocyclohexane.

PF GUAJATACA
PF GUAJATACA
6/4/2020
57 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.

PF GUAJATACA
PF GUAJATACA
11/13/2019
63 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.

PF GUAJATACA
PF GUAJATACA
6/4/2020
57 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 Lago Guajataca showed levels of chlorpyrifos that were below unsafe concentration levels. Learn more about chlorpyrifos.

PF GUAJATACA
PF GUAJATACA
6/4/2020
57 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 Lago Guajataca showed levels of cylindrospermopsin that were below unsafe concentration levels. Learn more about cylindrospermopsin.

PF GUAJATACA
PF GUAJATACA
11/13/2019
63 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 Lago Guajataca showed levels of dimethipin that were below unsafe concentration levels. Learn more about dimethipin.

PF GUAJATACA
PF GUAJATACA
6/4/2020
57 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 Lago Guajataca showed levels of ethoprop that were below unsafe concentration levels. Learn more about ethoprop.

PF GUAJATACA
PF GUAJATACA
6/4/2020
57 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.

PF GUAJATACA
PF GUAJATACA
6/4/2020
57 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 Lago Guajataca showed levels of Manganese that were below unsafe concentration levels. The maximum reported value was 5.266 µg/L. Learn more about Manganese.

PF GUAJATACA
PF GUAJATACA
6/4/2020
57 months ago
5.266 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.

PF GUAJATACA
PF GUAJATACA
6/4/2020
57 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 Lago Guajataca showed levels of oxyfluorfen that were below unsafe concentration levels. Learn more about oxyfluorfen.

PF GUAJATACA
PF GUAJATACA
6/4/2020
57 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 Lago Guajataca showed levels of profenofos that were below unsafe concentration levels. Learn more about profenofos.

PF GUAJATACA
PF GUAJATACA
6/4/2020
57 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 Lago Guajataca showed levels of quinoline that were below unsafe concentration levels. Learn more about quinoline.

PF GUAJATACA
PF GUAJATACA
6/4/2020
57 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 Lago Guajataca showed levels of tebuconazole that were below unsafe concentration levels. Learn more about tebuconazole.

PF GUAJATACA
PF GUAJATACA
6/4/2020
57 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 Lago Guajataca showed levels of Total Microcystin that were below unsafe concentration levels. Learn more about Total Microcystin.

PF GUAJATACA
PF GUAJATACA
11/26/2019
63 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 Lago Guajataca showed levels of Total Permethrin that were below unsafe concentration levels. Learn more about Total Permethrin.

PF GUAJATACA
PF GUAJATACA
6/4/2020
57 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 Lago Guajataca showed levels of tribufos that were below unsafe concentration levels. Learn more about tribufos.

PF GUAJATACA
PF GUAJATACA
6/4/2020
57 months ago
<0.07 µg/L
Below Reporting Level

Sampling Facilities

Facility NameWater Type/Source
PF GUAJATACASurface Water (SW)
HEAD STARTSurface Water (SW)
LA CIMA BAKERYSurface Water (SW)
RES. JOSE A. MU�IZSurface Water (SW)
RES. JUAN M. QUILESSurface Water (SW)

FAQ

Is Lago Guajataca tap water safe to drink?

When was Lago Guajataca last tested for water contamination?

The latest water samples were taken between November 13th, 2019 and June 4th, 2020.