Water Quality in MAYAGUEZ, PR (00680)

EPA violation data for public water systems serving ZIP code 00680.

141

Total Violations

Health-Based

139

Monitoring / Reporting

141

Resolved

What does this mean?

141 of 141 violations have been resolved. 2 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 139 are monitoring or reporting violations (missed testing deadlines or late paperwork — not necessarily a water quality issue). Not all violations mean your water is unsafe. The EPA requires reporting even for minor administrative issues.

Water systems: 5 Population served: 171,184

Violations Detail (141 total)

Contaminant	Category	MCL Limit	Measured	Date	Status	Health Effects
Picloram	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
BHC-GAMMA	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Heptachlor epoxide	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Heptachlor epoxide	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Atrazine	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	Cardiovascular system or reproductive problems
Atrazine	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	Cardiovascular system or reproductive problems
1,2-DIBROMO-3-CHLOROPROPANE	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
1,2-DIBROMO-3-CHLOROPROPANE	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Hexachlorocyclopentadiene	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Hexachlorocyclopentadiene	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Carbofuran	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Glyphosate	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Dinoseb	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Dinoseb	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Benzo(a)pyrene	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Benzo(a)pyrene	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Di(2-ethylhexyl) adipate	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Di(2-ethylhexyl) adipate	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
2,4,5-TP	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
2,4,5-TP	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Picloram	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Endrin	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Methoxychlor	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Methoxychlor	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Toxaphene	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Toxaphene	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Dalapon	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Dalapon	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Diquat	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Diquat	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Endothall	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Endothall	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
OXAMYL	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
OXAMYL	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Simazine	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Simazine	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Di(2-ethylhexyl) phthalate	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Di(2-ethylhexyl) phthalate	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
LASSO	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
LASSO	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Heptachlor	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Heptachlor	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
2,4-D	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
2,4-D	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
HEXACHLOROBENZENE	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
HEXACHLOROBENZENE	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Pentachlorophenol	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Pentachlorophenol	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Total Polychlorinated Biphenyls (PCB)	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Total Polychlorinated Biphenyls (PCB)	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Chlordane	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Chlordane	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
ETHYLENE DIBROMIDE	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
ETHYLENE DIBROMIDE	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Glyphosate	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Carbofuran	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
BHC-GAMMA	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Endrin	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Health-Based	N/A	N/A	Aug 31, 2022	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Health-Based	N/A	N/A	Aug 31, 2022	Resolved	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Thallium, Total	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Chromium	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Allergic dermatitis
Cadmium	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Kidney damage
Cadmium	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Kidney damage
Antimony, Total	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Antimony, Total	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Selenium	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Hair or fingernail loss; numbness in fingers or toes; circulatory problems
Selenium	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Hair or fingernail loss; numbness in fingers or toes; circulatory problems
Cadmium	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Kidney damage
Cadmium	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Kidney damage
Beryllium, Total	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Beryllium, Total	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
CYANIDE	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Nerve damage or thyroid problems
CYANIDE	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Nerve damage or thyroid problems
Mercury	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Kidney damage
Arsenic	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Antimony, Total	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Antimony, Total	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Mercury	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Kidney damage
Mercury	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Kidney damage
Beryllium, Total	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Beryllium, Total	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Beryllium, Total	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Beryllium, Total	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Thallium, Total	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Thallium, Total	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Arsenic	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Barium	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Increase in blood pressure
Barium	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Increase in blood pressure
Chromium	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Allergic dermatitis
Chromium	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Allergic dermatitis
CYANIDE	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Nerve damage or thyroid problems
CYANIDE	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Nerve damage or thyroid problems
Arsenic	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Barium	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Increase in blood pressure
Barium	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Increase in blood pressure
Cadmium	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Kidney damage
Cadmium	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Kidney damage
Chromium	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Allergic dermatitis
Chromium	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Allergic dermatitis
Mercury	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Kidney damage
Mercury	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Kidney damage
Barium	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Increase in blood pressure
Barium	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Increase in blood pressure
Selenium	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Hair or fingernail loss; numbness in fingers or toes; circulatory problems
Chromium	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Allergic dermatitis
CYANIDE	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Nerve damage or thyroid problems
CYANIDE	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Nerve damage or thyroid problems
Selenium	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Hair or fingernail loss; numbness in fingers or toes; circulatory problems
Selenium	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Hair or fingernail loss; numbness in fingers or toes; circulatory problems
Arsenic	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Thallium, Total	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Thallium, Total	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Thallium, Total	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Antimony, Total	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Antimony, Total	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Selenium	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Hair or fingernail loss; numbness in fingers or toes; circulatory problems
Mercury	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Kidney damage
Thallium, Total	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Thallium, Total	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Beryllium, Total	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Beryllium, Total	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Barium	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Increase in blood pressure
Barium	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Increase in blood pressure
Chromium	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Allergic dermatitis
Chromium	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Allergic dermatitis
Selenium	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Hair or fingernail loss; numbness in fingers or toes; circulatory problems
Selenium	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Hair or fingernail loss; numbness in fingers or toes; circulatory problems
CYANIDE	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Nerve damage or thyroid problems
CYANIDE	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Nerve damage or thyroid problems
Mercury	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Kidney damage
Mercury	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Kidney damage
Cadmium	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Kidney damage
Cadmium	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Kidney damage
Arsenic	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Antimony, Total	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Antimony, Total	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A

Lead & Copper Levels

Violation Timeline

2022(61)

Picloram

Sep 30Resolved

BHC-GAMMA

Sep 30Resolved

Heptachlor epoxide

Sep 30Resolved

Heptachlor epoxide

Sep 30Resolved

Atrazine

Sep 30Resolved

Atrazine

Sep 30Resolved

1,2-DIBROMO-3-CHLOROPROPANE

Sep 30Resolved

1,2-DIBROMO-3-CHLOROPROPANE

Sep 30Resolved

Hexachlorocyclopentadiene

Sep 30Resolved

Hexachlorocyclopentadiene

Sep 30Resolved

Carbofuran

Sep 30Resolved

Glyphosate

Sep 30Resolved

Dinoseb

Sep 30Resolved

Dinoseb

Sep 30Resolved

Benzo(a)pyrene

Sep 30Resolved

Benzo(a)pyrene

Sep 30Resolved

Di(2-ethylhexyl) adipate

Sep 30Resolved

Di(2-ethylhexyl) adipate

Sep 30Resolved

2,4,5-TP

Sep 30Resolved

2,4,5-TP

Sep 30Resolved

Picloram

Sep 30Resolved

Endrin

Sep 30Resolved

Methoxychlor

Sep 30Resolved

Methoxychlor

Sep 30Resolved

Toxaphene

Sep 30Resolved

Toxaphene

Sep 30Resolved

Dalapon

Sep 30Resolved

Dalapon

Sep 30Resolved

Diquat

Sep 30Resolved

Diquat

Sep 30Resolved

Endothall

Sep 30Resolved

Endothall

Sep 30Resolved

OXAMYL

Sep 30Resolved

OXAMYL

Sep 30Resolved

Simazine

Sep 30Resolved

Simazine

Sep 30Resolved

Di(2-ethylhexyl) phthalate

Sep 30Resolved

Di(2-ethylhexyl) phthalate

Sep 30Resolved

LASSO

Sep 30Resolved

LASSO

Sep 30Resolved

Heptachlor

Sep 30Resolved

Heptachlor

Sep 30Resolved

2,4-D

Sep 30Resolved

2,4-D

Sep 30Resolved

HEXACHLOROBENZENE

Sep 30Resolved

HEXACHLOROBENZENE

Sep 30Resolved

Pentachlorophenol

Sep 30Resolved

Pentachlorophenol

Sep 30Resolved

Total Polychlorinated Biphenyls (PCB)

Sep 30Resolved

Total Polychlorinated Biphenyls (PCB)

Sep 30Resolved

Chlordane

Sep 30Resolved

Chlordane

Sep 30Resolved

ETHYLENE DIBROMIDE

Sep 30Resolved

ETHYLENE DIBROMIDE

Sep 30Resolved

Glyphosate

Sep 30Resolved

Carbofuran

Sep 30Resolved

BHC-GAMMA

Sep 30Resolved

Endrin

Sep 30Resolved

Interim Enhanced Surface Water Treatment Rule

Aug 31Resolved

Interim Enhanced Surface Water Treatment Rule

Aug 31Resolved

Consumer Confidence Rule

Jun 30Resolved

2021(80)

Thallium, Total

Dec 31Resolved

Chromium

Dec 31Resolved

Cadmium

Dec 31Resolved

Cadmium

Dec 31Resolved

Antimony, Total

Dec 31Resolved

Antimony, Total

Dec 31Resolved

Selenium

Dec 31Resolved

Selenium

Dec 31Resolved

Cadmium

Dec 31Resolved

Cadmium

Dec 31Resolved

Beryllium, Total

Dec 31Resolved

Beryllium, Total

Dec 31Resolved

CYANIDE

Dec 31Resolved

CYANIDE

Dec 31Resolved

Mercury

Dec 31Resolved

Arsenic

Dec 31Resolved

Antimony, Total

Dec 31Resolved

Antimony, Total

Dec 31Resolved

Mercury

Dec 31Resolved

Mercury

Dec 31Resolved

Beryllium, Total

Dec 31Resolved

Beryllium, Total

Dec 31Resolved

Beryllium, Total

Dec 31Resolved

Beryllium, Total

Dec 31Resolved

Thallium, Total

Dec 31Resolved

Thallium, Total

Dec 31Resolved

Arsenic

Dec 31Resolved

Arsenic

Dec 31Resolved

Barium

Dec 31Resolved

Barium

Dec 31Resolved

Chromium

Dec 31Resolved

Chromium

Dec 31Resolved

CYANIDE

Dec 31Resolved

CYANIDE

Dec 31Resolved

Arsenic

Dec 31Resolved

Arsenic

Dec 31Resolved

Barium

Dec 31Resolved

Barium

Dec 31Resolved

Cadmium

Dec 31Resolved

Cadmium

Dec 31Resolved

Chromium

Dec 31Resolved

Chromium

Dec 31Resolved

Mercury

Dec 31Resolved

Mercury

Dec 31Resolved

Barium

Dec 31Resolved

Barium

Dec 31Resolved

Selenium

Dec 31Resolved

Chromium

Dec 31Resolved

CYANIDE

Dec 31Resolved

CYANIDE

Dec 31Resolved

Selenium

Dec 31Resolved

Selenium

Dec 31Resolved

Arsenic

Dec 31Resolved

Thallium, Total

Dec 31Resolved

Thallium, Total

Dec 31Resolved

Thallium, Total

Dec 31Resolved

Antimony, Total

Dec 31Resolved

Antimony, Total

Dec 31Resolved

Selenium

Dec 31Resolved

Mercury

Dec 31Resolved

Thallium, Total

Dec 31Resolved

Thallium, Total

Dec 31Resolved

Beryllium, Total

Dec 31Resolved

Beryllium, Total

Dec 31Resolved

Barium

Dec 31Resolved

Barium

Dec 31Resolved

Chromium

Dec 31Resolved

Chromium

Dec 31Resolved

Selenium

Dec 31Resolved

Selenium

Dec 31Resolved

CYANIDE

Dec 31Resolved

CYANIDE

Dec 31Resolved

Mercury

Dec 31Resolved

Mercury

Dec 31Resolved

Cadmium

Dec 31Resolved

Cadmium

Dec 31Resolved

Arsenic

Dec 31Resolved

Arsenic

Dec 31Resolved

Antimony, Total

Dec 31Resolved

Antimony, Total

Dec 31Resolved

How Does This Compare?

MAYAGUEZ (00680) has 141 recorded violations, including 2 health-based. All violations have been resolved, which is a positive sign for current water quality. Consider testing your tap water independently for added peace of mind.

Recommended Water Filters

Based on the contaminants detected in your area, these filter types may help improve your water quality.

Reverse Osmosis System

Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.

Targets:Lead, Copper, Arsenic, Mercury, Cadmium

Look for:NSF/ANSI 58 certified

NSF Certified Products → EPA Safe Drinking Water Guide →

Always look for filters certified by NSF International for the specific contaminants you want to remove.

Water Quality in MAYAGUEZ, PR (00680)

What does this mean?

Violations Detail (141 total)

Lead & Copper Levels

Violation Timeline

2022(61)

2021(80)

How Does This Compare?

Recommended Water Filters

Reverse Osmosis System

Nearby ZIP Codes

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