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City water profile

Denver water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Denver, North Carolina.

Median indexed hardness

38PPM

One indexed ZIP

Range 37.7–37.7 PPM

State comparison
3 PPM below
State hardness rank
#279 of 381
Matched utilities
4
Active health records
0

City summary

What the indexed records say

Denver has 1 published ZIP profile across Lincoln County. The indexed median is 38 PPM, compared with 41 PPM across North Carolina.

Among the 381 North Carolinacities with an indexed median, Denver ranks #279from highest to lowest. Across all 519 state ZIP profiles, available estimates run from 4.7to 267.5 PPM.

Because only one ZIP is represented, the city median and range are the same local estimate. It should not be read as multiple independent samples across the community. At least one estimate is marked low confidence, so observation distance and date deserve extra attention.

Hardness distribution

How local ZIP estimates compare

Soft1 ZIP
Moderately hard0 ZIPs
Hard0 ZIPs
Very hard0 ZIPs

1 of 1 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance
37.1 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 0Low: 1

Observation window: Jul 27, 2016 to Apr 3, 2018.

ZIP directory

Water reports in Denver

Open a ZIP for site-level provenance and measurements.

ZIP code

28037

Soft

37.7 PPM

Nearest site
37.1 mi
Confidence
Low

View full ZIP evidence →

Public water systems

Utilities associated with this city

Lincoln County Wtp

PWSID NC0155035

Surface water
System population served
49,693
Last reported
Jun 26, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Cross Country Campground Inc

PWSID NC0118612

Groundwater
System population served
627
Last reported
Jun 26, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Pebble Bay

PWSID NC2018008

Groundwater
System population served
587
Last reported
Jun 26, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Denver Shores Mhp Water System

PWSID NC0155119

Groundwater
System population served
229
Last reported
Jun 26, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Compliance history

What EPA records show

No active health-based violation appears among the associated systems in the represented EPA reporting quarter. This does not mean every contaminant was tested at every tap.

RecordSystemPeriodStatus
Lead and Copper RuleNC0155119Jan 1, 2026Addressed
Consumer Confidence RuleNC0155119Jul 1, 2025Resolved
LEAD AND COPPER RULE REVISIONSNC0155035Oct 17, 2024Resolved
LEAD AND COPPER RULE REVISIONSNC0155035Oct 17, 2024Resolved · health-based
LEAD AND COPPER RULE REVISIONSNC0118612Oct 17, 2024Resolved
LEAD AND COPPER RULE REVISIONSNC0118612Oct 17, 2024Resolved · health-based
Consumer Confidence RuleNC2018008Jul 1, 2024Resolved
Lead and Copper RuleNC0155119Jan 1, 2023Resolved
Consumer Confidence RuleNC0155119Jul 1, 2021Resolved

Practical next steps

Move from index to evidence

  1. 1. Open your ZIP. Check distance, dates, confidence, and the associated utility.
  2. 2. Read the current CCR. Confirm source water, detections, limits, ranges, and notices.
  3. 3. Test the tap when needed. Confirm health concerns or treatment sizing with the right method.

Questions people ask

About water in Denver

Is the water hard?

The indexed city median is 38 PPM. Open the ZIP report to verify the distance and confidence behind that estimate.

Is the tap water safe?

Compliance history is utility-wide and cannot guarantee conditions at every tap. Check current notices and test when address-specific evidence is needed.

Do I need treatment?

Choose treatment only after confirming the problem at the property. A softener targets hardness; contaminant treatment requires a matching, verified performance claim.