Water Quality in BOULDER CITY, NV (89005)

EPA violation data for public water systems serving ZIP code 89005.

529

Total Violations

71

Health-Based

458

Monitoring / Reporting

518

Resolved

What does this mean?

518 of 529 violations have been resolved. 71 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 458 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: 14 Population served: 20,292

Violations Detail (529 total)

ContaminantCategoryMCL LimitMeasuredDateStatusHealth Effects
1,1-DichloroethyleneMonitoringN/AN/AJun 30, 2025ResolvedN/A
1,1,1-TrichloroethaneMonitoringN/AN/AJun 30, 2025ResolvedN/A
TrichloroethyleneMonitoringN/AN/AJun 30, 2025ResolvedLiver problems; increased risk of cancer
trans-1,2-DichloroethyleneMonitoringN/AN/AJun 30, 2025ResolvedN/A
o-DichlorobenzeneMonitoringN/AN/AJun 30, 2025ResolvedN/A
TetrachloroethyleneMonitoringN/AN/AJun 30, 2025ResolvedLiver problems; increased risk of cancer
1,2-DichloropropaneMonitoringN/AN/AJun 30, 2025ResolvedN/A
1,1,2-TrichloroethaneMonitoringN/AN/AJun 30, 2025ResolvedN/A
p-DichlorobenzeneMonitoringN/AN/AJun 30, 2025ResolvedN/A
BenzeneMonitoringN/AN/AJun 30, 2025ResolvedAnemia; decrease in blood platelets; increased risk of cancer

Lead & Copper Levels

Violation Timeline

2025(42)

1,1-Dichloroethylene

03

Jun 30Resolved

1,1,1-Trichloroethane

03

Jun 30Resolved

Trichloroethylene

03

Jun 30Resolved

trans-1,2-Dichloroethylene

03

Jun 30Resolved

o-Dichlorobenzene

03

Jun 30Resolved

Tetrachloroethylene

03

Jun 30Resolved

1,2-Dichloropropane

03

Jun 30Resolved

1,1,2-Trichloroethane

03

Jun 30Resolved

p-Dichlorobenzene

03

Jun 30Resolved

Benzene

03

Jun 30Resolved

Carbon tetrachloride

03

Jun 30Resolved

CHLOROBENZENE

03

Jun 30Resolved

Vinyl chloride

03

Jun 30Resolved

cis-1,2-Dichloroethylene

03

Jun 30Resolved

Styrene

03

Jun 30Resolved

1,2,4-Trichlorobenzene

03

Jun 30Resolved

Xylenes, Total

03

Jun 30Resolved

Ethylbenzene

03

Jun 30Resolved

1,2-Dichloroethane

03

Jun 30Resolved

DICHLOROMETHANE

03

Jun 30Resolved

Toluene

03

Jun 30Resolved

Public Notice

75

Apr 30Resolved

Public Notice

75

Apr 30Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Total Haloacetic Acids (HAA5)

35

Mar 31Resolved

Total Haloacetic Acids (HAA5)

35

Mar 31Resolved

Total Haloacetic Acids (HAA5)

35

Mar 31Resolved

Arsenic

03

Mar 31Resolved

Arsenic

03

Mar 31Resolved

Nitrate

03

Mar 31Resolved

Nitrate

03

Mar 31Resolved

Arsenic

03

Mar 31Resolved

Arsenic

03

Mar 31Resolved

Arsenic

03

Mar 31Resolved

Revised Total Coliform Rule

3A

Feb 28Resolved

Revised Total Coliform Rule

3A

Feb 28Resolved

Revised Total Coliform Rule

3A

Feb 28Resolved

Revised Total Coliform Rule

3A

Feb 28Resolved

Public Notice

75

Jan 30Resolved

Public Notice

75

Jan 30Resolved

Public Notice

75

Jan 1Active

2024(81)

Total Haloacetic Acids (HAA5)

02

Dec 31Resolved

Total Haloacetic Acids (HAA5)

02

Dec 31Resolved

Total Haloacetic Acids (HAA5)

02

Dec 31Resolved

Total Haloacetic Acids (HAA5)

02

Dec 31Resolved

Total Haloacetic Acids (HAA5)

02

Dec 31Resolved

TTHM

27

Dec 31Active

Total Haloacetic Acids (HAA5)

27

Dec 31Active

Public Notice

75

Dec 1Active

Total Haloacetic Acids (HAA5)

02

Sep 30Resolved

Total Haloacetic Acids (HAA5)

02

Sep 30Resolved

Total Haloacetic Acids (HAA5)

02

Sep 30Resolved

Total Haloacetic Acids (HAA5)

02

Sep 30Resolved

Total Haloacetic Acids (HAA5)

02

Sep 30Resolved

Consumer Confidence Rule

72

Sep 30Active

Lead and Copper Rule

52

Sep 30Resolved

Lead and Copper Rule

52

Sep 30Resolved

Lead and Copper Rule

52

Sep 30Resolved

Lead and Copper Rule

52

Sep 30Resolved

Lead and Copper Rule

52

Sep 30Resolved

Consumer Confidence Rule

72

Sep 30Active

Consumer Confidence Rule

72

Sep 30Active

Consumer Confidence Rule

72

Sep 30Active

Lead and Copper Rule

52

Sep 30Active

Lead and Copper Rule

52

Sep 30Active

Total Haloacetic Acids (HAA5)

02

Jun 30Resolved

Total Haloacetic Acids (HAA5)

02

Jun 30Resolved

Total Haloacetic Acids (HAA5)

02

Jun 30Resolved

Total Haloacetic Acids (HAA5)

02

Jun 30Resolved

Total Haloacetic Acids (HAA5)

02

Jun 30Resolved

Arsenic

03

Jun 30Resolved

Arsenic

03

Jun 30Resolved

Nitrate

03

Jun 30Resolved

Nitrate

03

Jun 30Resolved

Arsenic

03

Jun 30Resolved

Arsenic

03

Jun 30Resolved

Total Haloacetic Acids (HAA5)

35

Jun 29Resolved

Total Haloacetic Acids (HAA5)

35

Jun 29Resolved

Total Haloacetic Acids (HAA5)

35

Jun 29Resolved

Total Haloacetic Acids (HAA5)

35

Jun 29Resolved

Total Haloacetic Acids (HAA5)

35

Jun 29Resolved

Revised Total Coliform Rule

3A

May 31Resolved

Revised Total Coliform Rule

3A

May 31Resolved

Revised Total Coliform Rule

3A

May 31Resolved

Revised Total Coliform Rule

3A

May 31Resolved

Revised Total Coliform Rule

3A

May 31Resolved

Chlorine

27

May 31Resolved

Chlorine

27

May 31Resolved

Revised Total Coliform Rule

4B

May 31Resolved

Revised Total Coliform Rule

4B

May 31Resolved

Revised Total Coliform Rule

4B

Apr 30Resolved

Revised Total Coliform Rule

4B

Apr 30Resolved

Chlorine

27

Apr 30Resolved

Chlorine

27

Apr 30Resolved

Chlorine

27

Mar 31Resolved

Chlorine

27

Mar 31Resolved

Total Haloacetic Acids (HAA5)

02

Mar 31Resolved

Total Haloacetic Acids (HAA5)

02

Mar 31Resolved

Total Haloacetic Acids (HAA5)

02

Mar 31Resolved

Total Haloacetic Acids (HAA5)

02

Mar 31Resolved

Total Haloacetic Acids (HAA5)

02

Mar 31Resolved

Nitrate

03

Mar 31Resolved

Chlorine

27

Mar 31Resolved

Nitrate

03

Mar 31Resolved

Arsenic

03

Mar 31Resolved

Arsenic

03

Mar 31Resolved

Chlorine

27

Mar 31Resolved

Arsenic

03

Mar 31Resolved

Arsenic

03

Mar 31Resolved

Chlorine

27

Mar 31Resolved

Chlorine

27

Mar 31Resolved

Chlorine

27

Feb 29Resolved

Chlorine

27

Feb 29Resolved

Chlorine

27

Feb 29Resolved

Chlorine

27

Feb 29Resolved

Chlorine

27

Feb 29Resolved

Chlorine

27

Jan 31Resolved

Chlorine

27

Jan 31Resolved

Chlorine

27

Jan 31Resolved

Chlorine

27

Jan 31Resolved

Chlorine

27

Jan 31Resolved

Public Notice

75

Jan 1Active

How Does This Compare?

BOULDER CITY (89005) has 529 recorded violations, including 71 health-based. 11 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

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

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

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

Nearby ZIP Codes

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