Water Quality in KWETHLUK, AK (99621)

EPA violation data for public water systems serving ZIP code 99621.

427

Total Violations

75

Health-Based

352

Monitoring / Reporting

427

Resolved

What does this mean?

427 of 427 violations have been resolved. 75 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 352 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: 3 Population served: 1,993

Violations Detail (427 total)

ContaminantCategoryMCL LimitMeasuredDateStatusHealth Effects
CARBON, TOTALMonitoringN/AN/AAug 31, 2025ResolvedN/A
CARBON, TOTALMonitoringN/AN/AAug 31, 2025ResolvedN/A
CARBON, TOTALMonitoringN/AN/AJul 31, 2025ResolvedN/A
CARBON, TOTALMonitoringN/AN/AJul 31, 2025ResolvedN/A
CARBON, TOTALMonitoringN/AN/AJun 30, 2025ResolvedN/A
CARBON, TOTALHealth-BasedN/A0.84Jun 30, 2025ResolvedN/A
CARBON, TOTALMonitoringN/AN/AJun 30, 2025ResolvedN/A
Surface Water Treatment RuleHealth-BasedN/AN/AJun 30, 2025ResolvedN/A
Total Haloacetic Acids (HAA5)MonitoringN/AN/AJun 30, 2025ResolvedN/A
TTHMMonitoringN/AN/AJun 30, 2025ResolvedN/A

Lead & Copper Levels

Violation Timeline

2025(22)

CARBON, TOTAL

27

Aug 31Resolved

CARBON, TOTAL

27

Aug 31Resolved

CARBON, TOTAL

27

Jul 31Resolved

CARBON, TOTAL

27

Jul 31Resolved

CARBON, TOTAL

27

Jun 30Resolved

CARBON, TOTAL

46

Jun 30Resolved

CARBON, TOTAL

27

Jun 30Resolved

Surface Water Treatment Rule

41

Jun 30Resolved

Total Haloacetic Acids (HAA5)

27

Jun 30Resolved

TTHM

27

Jun 30Resolved

CARBON, TOTAL

27

May 31Resolved

Surface Water Treatment Rule

36

May 31Resolved

CARBON, TOTAL

27

May 31Resolved

Chlorine

27

Mar 31Resolved

Total Haloacetic Acids (HAA5)

02

Mar 31Resolved

Total Haloacetic Acids (HAA5)

02

Mar 31Resolved

Surface Water Treatment Rule

36

Mar 31Resolved

Revised Total Coliform Rule

3A

Mar 31Resolved

CARBON, TOTAL

46

Mar 31Resolved

CARBON, TOTAL

27

Mar 31Resolved

CARBON, TOTAL

27

Mar 31Resolved

Surface Water Treatment Rule

36

Jan 31Resolved

2024(86)

TTHM

27

Dec 31Resolved

CARBON, TOTAL

46

Dec 31Resolved

CARBON, TOTAL

46

Dec 31Resolved

Total Haloacetic Acids (HAA5)

02

Dec 31Resolved

Total Haloacetic Acids (HAA5)

02

Dec 31Resolved

CARBON, TOTAL

27

Dec 31Resolved

Total Haloacetic Acids (HAA5)

02

Dec 31Resolved

Total Haloacetic Acids (HAA5)

02

Dec 31Resolved

Total Haloacetic Acids (HAA5)

27

Dec 31Resolved

CARBON, TOTAL

27

Dec 31Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

CARBON, TOTAL

27

Nov 30Resolved

Chlorine

27

Nov 30Resolved

Surface Water Treatment Rule

36

Nov 30Resolved

CARBON, TOTAL

27

Nov 30Resolved

CARBON, TOTAL

27

Oct 31Resolved

Chlorine

27

Oct 31Resolved

Surface Water Treatment Rule

36

Oct 31Resolved

CARBON, TOTAL

27

Oct 31Resolved

Revised Total Coliform Rule

3A

Oct 31Resolved

Interim Enhanced Surface Water Treatment Rule

38

Sep 30Resolved

Surface Water Treatment Rule

36

Sep 30Resolved

TTHM

27

Sep 30Resolved

CARBON, TOTAL

27

Sep 30Resolved

Total Haloacetic Acids (HAA5)

02

Sep 30Resolved

CARBON, TOTAL

46

Sep 30Resolved

CARBON, TOTAL

46

Sep 30Resolved

Total Haloacetic Acids (HAA5)

02

Sep 30Resolved

Total Haloacetic Acids (HAA5)

02

Sep 30Resolved

Total Haloacetic Acids (HAA5)

27

Sep 30Resolved

CARBON, TOTAL

27

Sep 30Resolved

Total Haloacetic Acids (HAA5)

02

Sep 30Resolved

Total Haloacetic Acids (HAA5)

02

Sep 30Resolved

Total Haloacetic Acids (HAA5)

02

Sep 30Resolved

Surface Water Treatment Rule

41

Aug 31Resolved

Surface Water Treatment Rule

41

Aug 31Resolved

Surface Water Treatment Rule

41

Aug 31Resolved

Surface Water Treatment Rule

36

Aug 31Resolved

Surface Water Treatment Rule

41

Jul 31Resolved

CARBON, TOTAL

27

Jul 31Resolved

CARBON, TOTAL

27

Jul 31Resolved

Surface Water Treatment Rule

41

Jul 31Resolved

Surface Water Treatment Rule

41

Jul 31Resolved

Surface Water Treatment Rule

36

Jul 31Resolved

Chlorine

27

Jun 30Resolved

Total Haloacetic Acids (HAA5)

02

Jun 30Resolved

Revised Total Coliform Rule

3A

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

Total Haloacetic Acids (HAA5)

02

Jun 30Resolved

CARBON, TOTAL

46

Jun 30Resolved

Surface Water Treatment Rule

41

Jun 30Resolved

Surface Water Treatment Rule

41

Jun 30Resolved

Surface Water Treatment Rule

41

Jun 30Resolved

CARBON, TOTAL

46

Jun 30Resolved

Surface Water Treatment Rule

36

Jun 30Resolved

Chlorine

27

May 31Resolved

Revised Total Coliform Rule

3A

May 31Resolved

CARBON, TOTAL

27

May 31Resolved

Surface Water Treatment Rule

41

May 31Resolved

Surface Water Treatment Rule

41

May 31Resolved

Surface Water Treatment Rule

36

May 31Resolved

Surface Water Treatment Rule

41

May 31Resolved

CARBON, TOTAL

27

May 31Resolved

Surface Water Treatment Rule

36

Apr 30Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

CARBON, TOTAL

46

Mar 31Resolved

CARBON, TOTAL

46

Mar 31Resolved

TTHM

27

Mar 31Resolved

Interim Enhanced Surface Water Treatment Rule

38

Mar 31Resolved

Surface Water Treatment Rule

36

Mar 31Resolved

CARBON, TOTAL

27

Mar 31Resolved

Total Haloacetic Acids (HAA5)

27

Mar 31Resolved

CARBON, TOTAL

27

Mar 31Resolved

Surface Water Treatment Rule

36

Feb 29Resolved

Surface Water Treatment Rule

41

Feb 29Resolved

Surface Water Treatment Rule

41

Feb 29Resolved

Surface Water Treatment Rule

41

Feb 29Resolved

Revised Total Coliform Rule

3A

Feb 29Resolved

Surface Water Treatment Rule

41

Jan 31Resolved

Surface Water Treatment Rule

41

Jan 31Resolved

Surface Water Treatment Rule

41

Jan 31Resolved

Surface Water Treatment Rule

36

Jan 31Resolved

Revised Total Coliform Rule

3A

Jan 31Resolved

How Does This Compare?

KWETHLUK (99621) has 427 recorded violations, including 75 health-based. All violations have been resolved, which is a positive sign for current water quality. 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.

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