GILLETTE, Wyoming Tap Water Quality

45,958 people served · 47 water systems

Poor

GILLETTE, Wyoming is a small city with 45,958 residents served by 47 distinct public water systems. Water service covers ZIP codes 62718, 82716, 82717, 82718.

GILLETTE has a notable pattern of EPA health-based violations across multiple compliance periods. Filtered water is a reasonable precaution while the utility implements long-term corrective action.

EPA reporting identifies Lead and Coliform Bacteria among the regulated contaminants associated with GILLETTE's recent health-based violations. Each contaminant has different sources, health implications, and recommended mitigation steps — links to the full EPA reference for each are listed alongside the violation history below.

Last updated: 2026-05-18 · Source: EPA SDWIS

Location

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Centered on ZIP-code centroids of water systems serving this city.

ZIP Codes Served

62718 82716 82717 82718

Health-Based Violations (Last 5 Years)

EPA Maximum Contaminant Level exceedances reported by water systems serving GILLETTE. Each entry explains the contaminant, the health risk, and recommended precautions, and links to a full guide.

Leadchemical

EPA Code 5200 · Treatment Technique Violation

violation

EPA Limit

0.015 mg/L

Last Reading

—

First Reported

Oct 2024

Most Recent

Oct 2024

What this violation means

Lead is a potent neurotoxin with no safe exposure level. In drinking water it primarily enters via corroded lead service lines, lead-soldered copper pipes, and brass fixtures. Children under 6 and pregnant women face the highest risk because lead disrupts developing nervous and skeletal systems.

Recommended precautions

→Run cold tap water 30–120 seconds before drinking or cooking, especially after the tap has been unused for hours.
→Never cook with hot tap water — heat increases lead leaching from pipes.
→Use an NSF/ANSI 53 certified filter for lead removal (carbon block or reverse osmosis).
→If you have children, get blood lead levels tested by your pediatrician.

Read the complete guide to Lead

Coliform Bacteriamicrobial

EPA Code 0700 · Treatment Technique Violation

violations

EPA Limit

0 per 100 mL presence/absence

Last Reading

—

First Reported

Dec 2021

Most Recent

Nov 2023

What this violation means

Total coliform bacteria are themselves usually harmless, but their presence signals that the water distribution system has a vulnerability — typically a cracked pipe, loss of pressure, or back-siphonage — that could allow disease-causing pathogens to enter. Repeated coliform-positive samples trigger mandatory utility investigation.

Recommended precautions

→If your utility issues a boil-water advisory, boil all drinking and cooking water for at least one minute.
→Use bottled water until the advisory is lifted.
→Ice from icemakers and beverages made before the advisory should be discarded.
→UV light and chlorination both kill coliform bacteria — most home filters do not.

Read the complete guide to Coliform Bacteria

Source: EPA Safe Drinking Water Information System (SDWIS). Health-based violations only. Older violations may have been resolved; check your utility's most recent Consumer Confidence Report for current status.

Water Systems Serving GILLETTE

WESTVIEW MHC

PWSID: WY5601593

416 served

BENNOR ESTATES & IMPROVEMENT DISTRICT

PWSID: WY5601596

144 served

RAFTER D IMPROVEMENT & SERVICE DISTRICT

PWSID: WY5601609

40 served

FOX RIDGE WATER SYSTEM

PWSID: WY5601615

38 served

ROZET RANCHETTES I&S DISTRICT

PWSID: WY5601620

85 served

RODEO FLATS

PWSID: WY5601626

72 served

RED HILLS SUBDIVISON

PWSID: WY5601657

62 served

LAKEVIEW MOBILE HOME PARK

PWSID: WY5601449

36 served

1 violation

VISTA WEST IMPROVEMENT & SERV DISTRICT

PWSID: WY5600246

120 served

ANTELOPE VALLEY I&S DISTRICT (AVISD)

PWSID: WY5600251

1,280 served

BALD MOUNTAIN TRAILER COURT

PWSID: WY5600258

150 served

HOY MOBILE HOME PARK

PWSID: WY5600141

100 served

2 violations

EAGLE RIDGE MHP, LLC

PWSID: WY5600119

140 served

PINE HAVEN, TOWN OF

PWSID: WY5600191

498 served

NICKELSON FARMS WATER COMPANY

PWSID: WY5600619

400 served

FOX PARK SUBDIVISION

PWSID: WY5600745

843 served

CEDAR HILLS WATER ASSOCIATION

PWSID: WY5600780

258 served

MEANS IMPROVEMENT & SERVICE DISTRICT

PWSID: WY5600760

410 served

SLEEPY HOLLOW SUBDIVISION

PWSID: WY5600764

2,400 served

FREEDOM HILLS SUBDIVISION

PWSID: WY5600789

400 served

SOUTHFORK ESTATES

PWSID: WY5600832

144 served

WARD CREEK LANDOWNERS ASSOCIATION

PWSID: WY5600850

77 served

CRESTVIEW ESTATES SUBDIVISION

PWSID: WY5600853

500 served

HERITAGE VILLAGE SUBDIVISION

PWSID: WY5600249

750 served

HIGHVIEW MFG MOBILE HOME COMMUNITY (MHC)

PWSID: WY5600120

304 served

SOUTHSIDE WELL I&S DISTRICT

PWSID: WY5600122

30 served

PLAY PARK LLC

PWSID: WY5600127

96 served

AMERICAN ROAD W&S DISTRICT

PWSID: WY5600968

220 served

EIGHT MILE SUBDIVISION

PWSID: WY5600829

120 served

BUCKMILLER ENTERPRISES, LLC

PWSID: WY5601695

33 served

FOOTHILLS MOBILE HOME PARK

PWSID: WY5601239

735 served

STONE GATE ESTATES

PWSID: WY5601329

198 served

EASTVIEW MANUFACTURED HOME COMMUNITY

PWSID: WY5601353

688 served

COOK ROAD WATER DISTRICT

PWSID: WY5601399

291 served

PINEVIEW I&S DISTRICT

PWSID: WY5601490

75 served

MEADOW SPRINGS IMP & SERV

PWSID: WY5601507

45 served

SECTION 4 WATER SYSTEM INCORPORATED

PWSID: WY5601519

120 served

OVERBROOK SUBDIVISION

PWSID: WY5601572

66 served

WRANGLER ESTATES

PWSID: WY5601474

250 served

2 violations

STROUP TRAILER COURT

PWSID: WY5600145

74 served

COUNTRYSIDE WATER USERS, INC.

PWSID: WY5600192

360 served

1 violation

HAGENS ESTATES

PWSID: WY5601739

29 served

GILLETTE, CITY OF

PWSID: WY5600019

32,222 served

NORTH GURLEY MOBILE HOME PARK

PWSID: WY5601721

128 served

PEOPLE`S IMPROVEMENT & SERVICE DISTRICT

PWSID: WY5600898

176 served

GREEN VALLEY ESTATES I&S DISTRICT

PWSID: WY5601245

140 served

FORCE ROAD JOINT POWERS BOARD

PWSID: WY5600148

195 served

What Can You Do?

✅ Request your utility's annual Consumer Confidence Report (CCR) — required by law.
✅ Use an NSF-certified water filter if violations involve lead, arsenic, or PFAS.
✅ Run cold water for 30 seconds before drinking if you have older plumbing (reduces lead).
✅ Check back monthly — we update data from the EPA every 30 days.

About this data

This overview reflects EPA SDWIS data published as of 2026-05-18. It covers active Community Water Systems (CWS) that exceeded federal Maximum Contaminant Levels during the past five-year EPA reporting window. For up-to-the-minute information, request a current Consumer Confidence Report from your utility, or review the EPA's public dashboard.

Frequently Asked Questions

Is GILLETTE, Wyoming tap water safe to drink?▼

This city's water had significant EPA violations in the last 5 years.

How many EPA violations does GILLETTE have?▼

GILLETTE has 6 EPA health-based water violations in the last 5 years across 47 water systems serving 45,958 people.

What contaminants have been found in GILLETTE water?▼

The following EPA-regulated contaminants have been detected: 5200, 0700. View details about each contaminant, health effects, and recommended precautions above in the violations table.

Should I use a water filter in GILLETTE?▼

Using an NSF-certified water filter is recommended if your area has violations involving lead, arsenic, or PFAS. For other contaminants, consult your local water utility. Check the annual Consumer Confidence Report (CCR) for detailed guidance.

What should I do if there are violations in GILLETTE?▼

Request your water utility's annual Consumer Confidence Report (CCR), which is required by the EPA. Follow the utility's guidance on boil water advisories. Run cold water for 30 seconds before drinking if you have older plumbing. Use an NSF-certified filter if needed based on your water system's violations.