TapScore

NORCO, CITY OF Water Quality Report

Population

25,068

people served

Water Source

🌊 Surface

rivers, lakes, reservoirs

National Rank

Top 90%

of 49,184 US systems

5-Year Record

⚠️ 94

violations recorded

C

Fair

Safety Grade

94 violations in the past 5 years

System Details

PWSID
CA3310025
Population Served
25,068
Water Source
Surface Water
Owner
Local Government
State
California
EPA Region
9

Contaminants of Concern

ContaminantStatusViolations
Contaminant 7000⚠ Monitoring/Reporting1
Contaminant 0700⚠ Monitoring/Reporting1
Contaminant 1002⚠ Monitoring/Reporting2
Arsenic⚠ Monitoring/Reporting2
Barium⚠ Monitoring/Reporting2
Cadmium⚠ Monitoring/Reporting2
Chromium⚠ Monitoring/Reporting2
Fluoride⚠ Monitoring/Reporting2
Selenium⚠ Monitoring/Reporting2
Contaminant 1036⚠ Monitoring/Reporting2
Nitrite⚠ Monitoring/Reporting2
Beryllium⚠ Monitoring/Reporting2
Contaminant 1075⚠ Monitoring/Reporting2
Contaminant 1085⚠ Monitoring/Reporting2
Thallium⚠ Monitoring/Reporting2
Contaminant 1039⚠ Monitoring/Reporting2
Contaminant 2005⚠ Monitoring/Reporting2
Contaminant 2010⚠ Monitoring/Reporting2
Contaminant 2015⚠ Monitoring/Reporting2
Contaminant 2020⚠ Monitoring/Reporting2
Contaminant 2031⚠ Monitoring/Reporting2
Contaminant 2032⚠ Monitoring/Reporting2
Contaminant 2033⚠ Monitoring/Reporting2
Contaminant 2034⚠ Monitoring/Reporting2
Contaminant 2035⚠ Monitoring/Reporting2
Contaminant 2036⚠ Monitoring/Reporting2
Contaminant 2037⚠ Monitoring/Reporting2
Contaminant 2039⚠ Monitoring/Reporting2
Contaminant 2040⚠ Monitoring/Reporting2
Contaminant 2041⚠ Monitoring/Reporting2
Contaminant 2042⚠ Monitoring/Reporting2
Contaminant 2046⚠ Monitoring/Reporting2
Atrazine⚠ Monitoring/Reporting2
Benzene⚠ Monitoring/Reporting2
Contaminant 2063⚠ Monitoring/Reporting2
Contaminant 2065⚠ Monitoring/Reporting2
Contaminant 2067⚠ Monitoring/Reporting2
Contaminant 2105⚠ Monitoring/Reporting2
Contaminant 2110⚠ Monitoring/Reporting2
Contaminant 2274⚠ Monitoring/Reporting2
Contaminant 2306⚠ Monitoring/Reporting2
Contaminant 2326⚠ Monitoring/Reporting2
Contaminant 2383⚠ Monitoring/Reporting2
Contaminant 2931⚠ Monitoring/Reporting2
Contaminant 2946⚠ Monitoring/Reporting2
Contaminant 2959⚠ Monitoring/Reporting2
Contaminant 2625⚠ Monitoring/Reporting2
Contaminant 2626⚠ Monitoring/Reporting2
Contaminant 2727⚠ Monitoring/Reporting2

Violation History

2024
94
2013
1
2001
1

Total violations on record: 96

Service Area

Cities Served

NORCO

ZIP Codes Served

92860

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, Nitrite, Fluoride, Cadmium, Chromium, Selenium, Barium

$150–$400

Activated Carbon Filter

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

Removes: Atrazine, Benzene

$20–$100

Water Distiller

Removes heavy metals, minerals, and most contaminants through evaporation

Removes: Arsenic, Cadmium, Fluoride

$80–$200

How does this compare?

This systemNational average
Grade C
Avg: B-C
96violations total

343% of national average

National avg: ~28 per system

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