TapScore

JOHNSTOWN TOWN OF Water Quality Report

Population

24,725

people served

Water Source

🌊 Surface

rivers, lakes, reservoirs

National Rank

Top 94%

of 49,184 US systems

5-Year Record

⚠️ 16

violations recorded

D

Poor

Safety Grade

16 violations in the past 5 years, including 4 health-based

System Details

PWSID
CO0162418
Population Served
24,725
Water Source
Surface Water
Owner
Local Government
State
Colorado
EPA Region
8

Contaminants of Concern

ContaminantStatusViolations
Contaminant 5000⚠ Monitoring/Reporting5
Contaminant 0300⚠ Monitoring/Reporting26
Contaminant 0200✕ Health-Based11
Contaminant 2920✕ Health-Based4
Arsenic⚠ Monitoring/Reporting2
Barium⚠ Monitoring/Reporting2
Cadmium⚠ Monitoring/Reporting2
Chromium⚠ Monitoring/Reporting2
Selenium⚠ Monitoring/Reporting2
Contaminant 1036⚠ Monitoring/Reporting2
Contaminant 1052⚠ Monitoring/Reporting2
Beryllium⚠ Monitoring/Reporting2
Contaminant 1075⚠ Monitoring/Reporting2
Contaminant 1085⚠ Monitoring/Reporting2
Thallium⚠ Monitoring/Reporting2
Fluoride⚠ Monitoring/Reporting2
Nitrate⚠ Monitoring/Reporting2
Contaminant 8000⚠ Monitoring/Reporting2
Contaminant 7500⚠ Monitoring/Reporting2
Contaminant 0800⚠ Monitoring/Reporting2
Total Trihalomethanes (TTHMs)⚠ Monitoring/Reporting2
Haloacetic Acids (HAA5)⚠ Monitoring/Reporting2
Contaminant 7000⚠ Monitoring/Reporting3

Violation History

2023
3
2022
3
2021
10
2020
8
2019
4
2018
26
2017
28
2015
4
2007
1

Total violations on record: 87

Service Area

Cities Served

JOHNSTOWN

ZIP Codes Served

80534

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, Fluoride, 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, Fluoride

$80–$200

How does this compare?

This systemNational average
Grade D
Avg: B-C
87violations total

311% of national average

National avg: ~28 per system

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