Skip to main content
WaterSafeCheck
Official EPA SDWIS Verified ReportWater Quality & Testing GuideStatus: Normal Operations

ZIP Code 82003 Water Quality & Testing Report

Cheyenne, WY · Laramie County County · Updated for 2026

Quick EPA Verified Answer

Is Tap Water Safe to Drink in ZIP 82003 (Cheyenne, WY)?

Caution / Filtration Recommended: Tap water in ZIP code 82003 (Cheyenne, WY) has compliance concerns, earning an EPA Safety Grade of D (44/100) due to 1 health violation(s) and 15.0 ppb lead. While treated by Cheyenne Board of Public Utilities, residents are advised to use an NSF/ANSI 53 certified water filter for drinking and cooking.

Safety Score
D

Water Safety Grade

Poor — Multiple violations recorded

Health Violations

1

Total Violations

6

Lead Risk

N/A

Contaminants

1

About Tap Water in ZIP Code 82003

Tap water in ZIP code 82003 (Cheyenne, WY) is distributed by Cheyenne Board of Public Utilities (EPA ID: WY5600011), serving approximately 64,165 residents. Based on EPA Safe Drinking Water Act compliance records, this system receives a water safety grade of D with a composite quality score of 44/100.

Water System

Cheyenne Board of Public Utilities

EPA ID: WY5600011

Water Source

Surface Water

Population Served

64,165 residents

County

Laramie County County, Wyoming

🧪

Lead Levels in ZIP 82003

EPA action level: 15 ppb | Public health goal: 0 ppb

Lead Level: 15.0 ppb — Moderate

The 90th percentile lead level in 82003 is 15.0 ppb. This is below the EPA action level of 15 ppb, but above ideal health goals. Consider a certified lead-reducing filter.
Lead Level (90th percentile)
15.00 ppb (0.015 mg/L)
Lead Exposure Risk Rating
Unknown
Note: Lead levels above are the 90th percentile from EPA monitoring — meaning 90% of samples were at or below this level. Even "undetected" tap water lead doesn't account for lead leaching from home plumbing. If your home was built before 1986, individual tap testing is recommended.
🪨

Water Hardness & Mineral Content

Grains per gallon (GPG) & Parts per million (PPM / mg/L)

Classification: Very Hard11.5 GPG · 196 mg/L

Water in ZIP 82003 is Very Hard (196 mg/L / 11.5 GPG). High concentrations of dissolved limestone minerals cause severe mineral buildup, stiff laundry, dry skin, and premature water heater wear.

Recommendation: A whole-home water softener system is strongly recommended to protect plumbing and home appliances.
Hardness (GPG)

Grains per gallon

11.5 GPG
Hardness (PPM / mg/L)

Parts per million CaCO3

196 mg/L
Appliance Scaling Risk
High / Severe

Official EPA SDWIS Database Entry

Utility: Cheyenne Board of Public Utilities · PWSID: WY5600011

Verify on EPA.gov
📋

Violation History

Past 5 years — EPA SDWIS data

Cheyenne Board of Public Utilities has recorded 1 health-based violation out of 6 total violations over the past 5 years. 1 violation remains unresolved in EPA tracking records.

Total Violations (5 yr)
6
Health-Based Violations
1
Unresolved Violations
1
Boil Water Advisories
0
Compliance Risk
High

Regulatory compliance risk for this utility is rated High based on past reporting and enforcement records.

⚗️

Contaminants Detected

Contaminants with health-based violations on record

EPA records identify 1 contaminant with health-based violations in the past 5 years: Contaminant 0700.

Contaminant 0700

⚖ Enforcement Actions

EPA or state regulators have issued 10 enforcement actions to address compliance lapses.
🌊

Water Source & Environmental Factors

Surface Water

This system draws water from lakes, rivers, or reservoirs. Surface water is treated to remove sediment, microorganisms, and chemical contaminants before reaching taps.

Water Source Type
Surface Water
CCR Source Classification
Surface Water
EPA Radon Zone

Highest potential

Zone 1

EPA Radon Zone 1 — highest potential for radon in indoor air. Homeowners should test their home for radon and consider mitigation if levels exceed 4 pCi/L.

Water Quality Testing in ZIP 82003

Tap Water & Well Testing Recommendations

Residents in ZIP code 82003 served by Cheyenne Board of Public Utilities can test tap water or private well systems to verify water purity. Testing detects hidden contaminants before they impact family health.

Tap Water Testing Steps

  • 1.Conduct a certified lead check if your home was constructed before 1986.
  • 2.Use certified lab testing kits rather than uncalibrated test strips for regulated compliance.
  • 3.Sample water from both your kitchen faucet and water heater to compare line purity.

Private Well Testing Steps

  • •Test for Coliform bacteria and Nitrates annually.
  • •Test for heavy metals, radon, and PFAS every 3 years.
  • •Send samples to a state-certified drinking water laboratory recognized by U.S. EPA Region 8 (Direct Implementation).
Certified Lab Testing: Always use an EPA-certified drinking water laboratory in WY for formal legal or real estate compliance testing.

🛡 What Should You Do? — ZIP 82003 Recommendations

  • 🚨 Install a certified NSF/ANSI 53 or 58 (reverse osmosis) filter immediately for drinking and cooking
  • 🚨 Do not give unfiltered water to children, pregnant women, or immunocompromised individuals
  • 🚨 Contact Cheyenne Board of Public Utilities to request the current violation status and corrective action plan
  • 🚨 Report concerns to your state environmental agency or call the EPA hotline: 1-800-426-4791
  • 🚨 Consider having your home's tap water independently tested by a certified lab

Recommended Water Treatment Systems:

REQUIRED FOR SAFETY
🏺

NSF 53 Lead Pitcher Filter

Certified to remove lead. Recommended for immediate protection.

Lead Filter Guide →
STRONGLY RECOMMENDED
⚗️

NSF 58 Under-Sink RO System

Reverse Osmosis system certified to remove PFAS, heavy metals, and viruses.

RO System Guide →

Frequently Asked Questions — ZIP 82003 Water Quality

Is tap water safe to drink in ZIP code 82003?+
Tap water in 82003 has a below-average safety grade of D due to compliance issues. We recommend using a certified water filter for drinking and cooking.
How do I get my water tested in ZIP 82003 (Cheyenne, WY)?+
To test water quality in ZIP 82003, you can order a certified drinking water test kit or send water samples to an EPA/NELAP certified laboratory in WY. Certified testing checks for lead, coliform bacteria, nitrates, hardness, and PFAS that standard test strips miss. Contact U.S. EPA Region 8 (Direct Implementation) for a list of certified regional labs.
How hard is the tap water in 82003?+
Tap water in 82003 is classified as Very Hard with an estimated mineral hardness of 196 mg/L (11.5 GPG). A whole-home water softener system is strongly recommended to protect plumbing and home appliances.
Should I test private well water in 82003?+
Yes. Unlike municipal systems, private wells in 82003 are not regulated by the EPA or local utilities. Private well owners should test their water annually for coliform bacteria and nitrates, and every 3 to 5 years for heavy metals (lead, arsenic) and volatile organic compounds.
What is the lead level in 82003 tap water?+
The 90th percentile lead level in 82003 is 15.0 ppb. The EPA action level is 15 ppb. This is below the EPA action level.
Is there an active boil water notice in 82003?+
There are currently no active boil water advisories on record for 82003. Water treatment systems are operating within normal parameters.
Who provides tap water to 82003?+
Tap water in ZIP code 82003 is provided by Cheyenne Board of Public Utilities (EPA ID: WY5600011), serving approximately 64,165 residents.
What water filter should I use in 82003?+
Based on water metrics for 82003, we recommend Reverse Osmosis (PFAS & Lead). Look for certifications such as NSF/ANSI 58 (Reverse Osmosis), NSF/ANSI 53 (Lead & VOCs), NSF/ANSI P473 (PFAS/PFOS).

Data Sources & Methodology

Water quality data for ZIP code 82003 is compiled from the EPA Safe Drinking Water Information System (SDWIS), EPA ECHO enforcement database, UCMR5 unregulated contaminant monitoring, and Consumer Confidence Reports filed by Cheyenne Board of Public Utilities. Safety scores are composite metrics derived from violation history, lead levels, enforcement actions, and infrastructure risk indicators. Data reflects a 5-year monitoring window. Last dataset update: 2024. View EPA source data →