TapScore

CALIF STATE POLYTECHNICAL UNIV - POMONA Water Quality Report

Population

29,854

people served

Water Source

🌊 Surface

rivers, lakes, reservoirs

National Rank

Top 94%

of 49,184 US systems

5-Year Record

⚠️ 60

violations recorded

D

Poor

Safety Grade

60 violations in the past 5 years, including 8 health-based

System Details

PWSID
CA1910022
Population Served
29,854
Water Source
Surface Water
Owner
State
State
California
EPA Region
9

Contaminants of Concern

ContaminantStatusViolations
Total Trihalomethanes (TTHMs)✕ Health-Based7
Contaminant 2218⚠ Monitoring/Reporting2
Contaminant 2251⚠ Monitoring/Reporting2
Contaminant 2378⚠ Monitoring/Reporting2
Vinyl Chloride⚠ Monitoring/Reporting2
Contaminant 2413⚠ Monitoring/Reporting2
Contaminant 2904⚠ Monitoring/Reporting2
Contaminant 2955⚠ Monitoring/Reporting2
Trichloroethylene (TCE)⚠ Monitoring/Reporting2
Contaminant 2968⚠ Monitoring/Reporting2
Tetrachloroethylene (PCE)⚠ Monitoring/Reporting2
Contaminant 2976⚠ Monitoring/Reporting2
Contaminant 2977⚠ Monitoring/Reporting2
Contaminant 2978⚠ Monitoring/Reporting2
Contaminant 2979⚠ Monitoring/Reporting2
Contaminant 2980⚠ Monitoring/Reporting2
Contaminant 2981⚠ Monitoring/Reporting2
Contaminant 2982⚠ Monitoring/Reporting2
Contaminant 2983⚠ Monitoring/Reporting2
Chloramine⚠ Monitoring/Reporting2
Contaminant 2985⚠ Monitoring/Reporting2
Contaminant 2987⚠ Monitoring/Reporting2
Contaminant 2988⚠ Monitoring/Reporting2
Contaminant 2989⚠ Monitoring/Reporting2
Contaminant 2990⚠ Monitoring/Reporting2
Contaminant 2991⚠ Monitoring/Reporting2
Contaminant 2992⚠ Monitoring/Reporting2
Contaminant 2996⚠ Monitoring/Reporting2
Contaminant 2414⚠ Monitoring/Reporting2
Contaminant 5200✕ Health-Based2

Violation History

2024
6
2021
54
2020
2
2017
3

Total violations on record: 65

Service Area

Cities Served

POMONA

ZIP Codes Served

91768

Recommended Water Filters

Based on contaminants detected in this water system:

Activated Carbon Filter

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

Removes: Total Trihalomethanes (TTHMs), Trichloroethylene (TCE), Tetrachloroethylene (PCE), Vinyl Chloride

$20–$100

How does this compare?

This systemNational average
Grade D
Avg: B-C
65violations total

232% of national average

National avg: ~28 per system

📍 Mid-to-large system — serves 4× the national average.