Water Quality in GILLETTE, WY (82718)

EPA violation data for public water systems serving ZIP code 82718.

386

Total Violations

1

Health-Based

385

Monitoring / Reporting

382

Resolved

What does this mean?

382 of 386 violations have been resolved. 1 is a health-based violation, meaning contaminant levels exceeded federal safety limits. The remaining 385 are monitoring or reporting violations (missed testing deadlines or late paperwork — not necessarily a water quality issue). Not all violations mean your water is unsafe. The EPA requires reporting even for minor administrative issues.

Water systems: 5 Population served: 185

Violations Detail (386 total)

ContaminantCategoryMCL LimitMeasuredDateStatusHealth Effects
E. COLIMonitoring0N/ASep 16, 2025ActiveSevere gastrointestinal illness; may be fatal in vulnerable populations
Revised Total Coliform RuleMonitoringN/AN/AApr 30, 2025ResolvedN/A
Radium-226MonitoringN/AN/ADec 31, 2024ResolvedIncreased risk of cancer
Radium-228MonitoringN/AN/ADec 31, 2024ResolvedIncreased risk of cancer
Gross Alpha, Excl. Radon and UMonitoringN/AN/ADec 31, 2024ResolvedN/A
Combined UraniumMonitoringN/AN/ADec 31, 2024ResolvedN/A
Combined Radium (-226 and -228)MonitoringN/AN/ADec 31, 2024ResolvedN/A
Lead and Copper RuleMonitoringN/AN/ADec 29, 2024ResolvedN/A
LEAD AND COPPER RULE REVISIONSMonitoringN/AN/AOct 16, 2024ActiveN/A
LEAD AND COPPER RULE REVISIONSHealth-BasedN/AN/AOct 16, 2024ActiveN/A

Lead & Copper Levels

Violation Timeline

2025(2)

E. COLI

34

Sep 16Active

Revised Total Coliform Rule

3A

Apr 30Resolved

2024(94)

Radium-226

03

Dec 31Resolved

Radium-228

03

Dec 31Resolved

Gross Alpha, Excl. Radon and U

03

Dec 31Resolved

Combined Uranium

03

Dec 31Resolved

Combined Radium (-226 and -228)

03

Dec 31Resolved

Lead and Copper Rule

66

Dec 29Resolved

LEAD AND COPPER RULE REVISIONS

4G

Oct 16Active

LEAD AND COPPER RULE REVISIONS

2E

Oct 16Active

Revised Total Coliform Rule

5A

Aug 19Active

Revised Total Coliform Rule

3A

Jul 31Resolved

Consumer Confidence Rule

71

Jun 30Resolved

Consumer Confidence Rule

71

Jun 30Resolved

Gross Alpha, Excl. Radon and U

03

Jun 30Resolved

Radium-226

03

Jun 30Resolved

Radium-228

03

Jun 30Resolved

Combined Uranium

03

Jun 30Resolved

Combined Radium (-226 and -228)

03

Jun 30Resolved

Arsenic

03

Mar 31Resolved

Chromium

03

Mar 31Resolved

Benzene

03

Mar 31Resolved

Radium-226

03

Mar 31Resolved

Radium-226

03

Mar 31Resolved

Tetrachloroethylene

03

Mar 31Resolved

1,2-Dichloroethane

03

Mar 31Resolved

Carbon tetrachloride

03

Mar 31Resolved

Atrazine

03

Mar 31Resolved

DICHLOROMETHANE

03

Mar 31Resolved

Thallium, Total

03

Mar 31Resolved

Radium-228

03

Mar 31Resolved

Radium-228

03

Mar 31Resolved

Methoxychlor

03

Mar 31Resolved

CYANIDE

03

Mar 31Resolved

Mercury

03

Mar 31Resolved

Selenium

03

Mar 31Resolved

Toluene

03

Mar 31Resolved

Glyphosate

03

Mar 31Resolved

Barium

03

Mar 31Resolved

Di(2-ethylhexyl) adipate

03

Mar 31Resolved

Benzo(a)pyrene

03

Mar 31Resolved

Heptachlor

03

Mar 31Resolved

Beryllium, Total

03

Mar 31Resolved

o-Dichlorobenzene

03

Mar 31Resolved

Trichloroethylene

03

Mar 31Resolved

Cadmium

03

Mar 31Resolved

Styrene

03

Mar 31Resolved

Fluoride

03

Mar 31Resolved

Combined Uranium

03

Mar 31Resolved

Combined Radium (-226 and -228)

03

Mar 31Resolved

Endrin

03

Mar 31Resolved

BHC-GAMMA

03

Mar 31Resolved

Toxaphene

03

Mar 31Resolved

Dalapon

03

Mar 31Resolved

Diquat

03

Mar 31Resolved

OXAMYL

03

Mar 31Resolved

Combined Radium (-226 and -228)

03

Mar 31Resolved

Di(2-ethylhexyl) phthalate

03

Mar 31Resolved

Hexachlorocyclopentadiene

03

Mar 31Resolved

Carbofuran

03

Mar 31Resolved

Heptachlor epoxide

03

Mar 31Resolved

2,4-D

03

Mar 31Resolved

2,4,5-TP

03

Mar 31Resolved

HEXACHLOROBENZENE

03

Mar 31Resolved

Total Polychlorinated Biphenyls (PCB)

03

Mar 31Resolved

1,2-DIBROMO-3-CHLOROPROPANE

03

Mar 31Resolved

cis-1,2-Dichloroethylene

03

Mar 31Resolved

Xylenes, Total

03

Mar 31Resolved

1,1-Dichloroethylene

03

Mar 31Resolved

1,1,1-Trichloroethane

03

Mar 31Resolved

Asbestos

03

Mar 31Resolved

Combined Uranium

03

Mar 31Resolved

Antimony, Total

03

Mar 31Resolved

Simazine

03

Mar 31Resolved

Chlordane

03

Mar 31Resolved

ETHYLENE DIBROMIDE

03

Mar 31Resolved

LASSO

03

Mar 31Resolved

p-Dichlorobenzene

03

Mar 31Resolved

1,1,2-Trichloroethane

03

Mar 31Resolved

Dinoseb

03

Mar 31Resolved

Endothall

03

Mar 31Resolved

1,2-Dichloropropane

03

Mar 31Resolved

1,2,4-Trichlorobenzene

03

Mar 31Resolved

Nickel

03

Mar 31Resolved

Picloram

03

Mar 31Resolved

Vinyl chloride

03

Mar 31Resolved

trans-1,2-Dichloroethylene

03

Mar 31Resolved

Gross Alpha, Excl. Radon and U

03

Mar 31Resolved

Gross Alpha, Excl. Radon and U

03

Mar 31Resolved

CHLOROBENZENE

03

Mar 31Resolved

Pentachlorophenol

03

Mar 31Resolved

Ethylbenzene

03

Mar 31Resolved

Revised Total Coliform Rule

3A

Feb 29Resolved

Revised Total Coliform Rule

3A

Feb 29Resolved

Revised Total Coliform Rule

3A

Jan 31Resolved

Revised Total Coliform Rule

3A

Jan 31Resolved

How Does This Compare?

GILLETTE (82718) has 386 recorded violations, including 1 health-based. 4 remain unresolved. Consider testing your tap water independently for added peace of mind.

Recommended Water Filters

Based on the contaminants detected in your area, these filter types may help improve your water quality.

Reverse Osmosis System

Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.

Targets:Lead, Copper, Arsenic, Mercury, Cadmium

Look for:NSF/ANSI 58 certified

NSF Certified Products → EPA Safe Drinking Water Guide →

Activated Carbon Filter

Excellent for removing chlorine, chloramine, and disinfection byproducts like THMs and HAAs. Available as pitcher filters, countertop, or under-sink units.

Targets:THMs, HAAs, Chlorine, Chloramine, Taste & Odor

Look for:NSF/ANSI 42 & 53 certified

NSF Certified Products → EPA Safe Drinking Water Guide →

UV Water Purifier

Uses ultraviolet light to neutralize bacteria, viruses, and parasites without chemicals. Ideal for homes with microbial contamination concerns.

Targets:E. coli, Coliform, Giardia, Cryptosporidium

Look for:NSF/ANSI 55 (Class A) certified

NSF Certified Products → EPA Safe Drinking Water Guide →

Always look for filters certified by NSF International for the specific contaminants you want to remove.

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