TapScore

METROPOLITANO Water Quality Report

Population

1,077,332

people served

Water Source

🌊 Surface

rivers, lakes, reservoirs

National Rank

—

of 49,184 US systems

5-Year Record

⚠️ 133

violations recorded

F

Unsafe

Safety Grade

133 violations in the past 5 years, including 278 health-based

System Details

PWSID
PR0002591
Population Served
1,077,332
Water Source
Surface Water
Owner
Local Government
State
Puerto Rico
EPA Region
2

Contaminants of Concern

ContaminantStatusViolations
Contaminant 5000⚠ Monitoring/Reporting24
Total Trihalomethanes (TTHMs)✕ Health-Based56
Haloacetic Acids (HAA5)✕ Health-Based42
Contaminant 2920✕ Health-Based18
Contaminant 7000⚠ Monitoring/Reporting5
Contaminant 3100✕ Health-Based8
Contaminant 0300✕ Health-Based160
Contaminant 0100⚠ Monitoring/Reporting70
Contaminant 3015⚠ Monitoring/Reporting70
Total Coliform⚠ Monitoring/Reporting70
Contaminant 0200✕ Health-Based47
Contaminant 2046⚠ Monitoring/Reporting9
Contaminant 2036⚠ Monitoring/Reporting9
Arsenic⚠ Monitoring/Reporting2
Barium⚠ Monitoring/Reporting2
Cadmium⚠ Monitoring/Reporting2
Chromium⚠ Monitoring/Reporting2
Selenium⚠ Monitoring/Reporting2
Beryllium⚠ Monitoring/Reporting2
Contaminant 1075⚠ Monitoring/Reporting2
Contaminant 1085⚠ Monitoring/Reporting2
Thallium⚠ Monitoring/Reporting2
Contaminant 8000✕ Health-Based4
Nitrate⚠ Monitoring/Reporting6

Violation History

2025
10
2024
31
2023
26
2022
55
2021
11
2020
32
2019
36
2018
34
2017
152
2016
96

Total violations on record: 616

Service Area

Cities Served

SAN JUAN

ZIP Codes Served

00901

Recommended Water Filters

Based on contaminants detected in this water system:

Reverse Osmosis System

Removes up to 99% of contaminants including PFAS, lead, arsenic, and nitrates

Removes: Arsenic, Nitrate, Cadmium, Chromium, Selenium, Barium

$150–$400

Activated Carbon Filter

Effective for chlorine, THMs, pesticides, and taste/odor improvement

Removes: Total Trihalomethanes (TTHMs), Haloacetic Acids (HAA5)

$20–$100

Water Distiller

Removes heavy metals, minerals, and most contaminants through evaporation

Removes: Arsenic, Cadmium

$80–$200

UV Water Purifier

Kills bacteria and viruses without chemicals

Removes: Total Coliform

$50–$150

How does this compare?

This systemNational average
Grade F
Avg: B-C
616violations total

2200% of national average

National avg: ~28 per system

🏙️ This is a large system — serving 161× more people than the national average.