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Local water dashboard

Official source aggregation

Water quality in Evans, CO 80645

A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Weld County.

1 reported benchmark flag
Primary matched system
Evans City Of
Source water
Surface water
County
Weld County
Profile updated

At a glance

What the current records say

Hardness

Soft

13.7 PPM · 0.8 GPG

Compliance screen

No active flag

0 active health-based records

Lead 90th percentile

0.002 mg/L

13% of action level

Utility match

2 systems

Serves 19,369 people system-wide

Hardness meter

How hard is the water?

Soft

Estimated local hardness

USGS hardness classification scale

13.7 PPM

Soft
0–59Moderate
60–120Hard
121–180Very hard
181+

Parts per million

13.7

mg/L as CaCO₃ equivalent

Grains per gallon

0.8

1 GPG ≈ 17.1 PPM

What this means at home

At 13.7 PPM, mineral scale can build up on fixtures and heating elements, reduce soap lather, and leave visible spotting. Hardness is primarily an aesthetic and appliance concern—not itself a tap-water safety rating.

USGS sites used

90

Nearest site

8.1 mi

Observation range

Jan 5, 2016–Jun 2, 2026

Estimate confidence

Moderate

Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: BIG THOMPSON RIV AT CR396 ABV MOUTH NR LA SALLE,CO (Stream).USGS source documentation ↗

Regional context

Is 80645 typical?

These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.

Evans median

14 PPM

About the same

2 indexed ZIP readings · Range 13.7–13.7 PPM

Colorado median

59 PPM

45 PPM lower

161 indexed ZIP readings · Range 13.7–829 PPM

EPA benchmark screen

Contaminant snapshot

Available numerical results from associated SDWIS community water systems, compared with the applicable action level or federal MCL. Federal measured-value coverage is incomplete.

1 pass1 fail

Lead (PB90)

0.002 mg/L

Reported Dec 31, 2025

Copper (CU90)

1.49 mg/L

Reported Dec 31, 2008

Numerical coverage

2 comparable results

Missing values remain blank; absence is not treated as a pass.

Lead (90th percentile)

Measured in mg/L

Pass

Local 0.002

EPA limit 0.015

Local level is 13% of the listed EPA limit.

Copper (90th percentile)

Measured in mg/L

Fail

Local 1.49

EPA limit 1.3

Local level is 115% of the listed EPA limit.

Share of EPA benchmark

100% line = listed limit

EPA SDWIS compliance

Reported violation history

Open EPA source documentation ↗
2026Q2
All records
2
Health-based
0
Active health-based
0
Contaminant or ruleSystemStatusPeriod
Lead and Copper RuleCO0162260ResolvedOct 1, 2024through Oct 25, 2024
Public NoticeCO0162260ResolvedApr 29, 2023through Sep 5, 2023

No reported violation does not prove that every contaminant was tested or absent; SDWIS measured values are incomplete and lag state records.

Solutions matcher

Your personalized water action plan

Matched to Evans ZIP 80645 using 13.7 PPM nearby hardness and 2 reported measurement benchmarks.

1 match

Drinking water protection

Under-Sink Reverse Osmosis System

Copper (90th percentile) has a measured benchmark flag or active health-based SDWIS record in this profile.

A certified multi-stage RO system targets a broader range of dissolved contaminants at the kitchen tap.

Explore under-sink filtration

Affiliate disclosure: we may earn a commission from qualifying purchases, at no added cost to you. Product matching is educational and does not replace certified water testing.

Nearby indexed reports

Compare ZIPs in Evans

Estimates can differ across a city because monitoring locations and associated systems differ.

View all Evans reports →

ZIP 80620

Soft

13.7PPM

Frequently asked

Water questions for Evans

Is tap water safe in Evans?+

EPA ECHO shows no active health-based violation for the associated systems in this reporting snapshot. This does not prove every contaminant is absent; federal records can lag and household plumbing can change tap conditions.

How hard is the water?+

Nearby USGS observations produce an estimate of 13.7 PPM, or 0.8 grains per gallon, classified as soft. This is not a household tap measurement.

Do I need a water softener?+

There is no high-hardness trigger in this profile. Confirm with a tap test before buying equipment.