WaterVerge

Is Mayking, KY Tap Water Safe to Drink?

Graded B+, with 6 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

3K residents served 1 water system PWSID: KY0670462
Overall Score
82.2 / 100
Violations
6 active
Last Updated
May 2026
Source
Purchased surface water
#136 of 246 in Kentucky Top 45% nationally
Local Government
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
B+GRADE
Water Quality Grade
82.2/100
waterverge.com
B+ 82.2/100

Mayking, KY — Water Quality Report

Mayking's drinking water received a grade of B+ (82.2 out of 100), indicating good water quality. The city's 1 water system serves approximately 2,673 residents using purchased surface water.

Lead levels were measured at 0.0 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program.

The system has 60 violations on record, including 36 health-based violations. 6 remain unresolved.

Data last updated: May 2026 · Source: EPA SDWIS, UCMR 5
Analysis

What to know about Mayking's water

Mayking ranks #136 out of 246 cities in Kentucky for water quality, placing it below average in the state.

The city draws from surface water sources, which are more susceptible to seasonal runoff and agricultural contamination, requiring extensive multi-barrier treatment including coagulation, filtration, and disinfection.

As a small community water system, Mayking may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.

Quality Breakdown

Water quality score

See methodology →
82.2 out of 100 Grade B+
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
33.2/45
C
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 0.0 ppb (90th percentile).
Contaminants
17/20
B
PFAS + legacy contaminant analysis.
Compliance
8/10
B
Monitoring and reporting compliance with EPA regulations.
Source Risk
4/5
B
Water source: Purchased surface water.
Water Safety

Is Mayking, KY water safe to drink?

Concerns Identified

Mayking's drinking water has significant quality concerns based on EPA testing data. With a grade of B+ (82.2/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 2,673 residents using surface water (rivers, lakes, or reservoirs).

6
Active Violations
0.0 ppb
Lead (90th %ile)
10 events
Disaster History

Recent water quality updates for Mayking

A timeline of significant water quality events, violations, and data updates.

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Mayking's water quality assessment. Grade: B+ (82.2/100).

Disaster
SEVERE STORMS, STRAIGHT-LINE WINDS, FLOODING, LANDSLIDES, AND MUDSLIDES

Federal disaster declaration (FEMA DR-4711). Flood event — may have impacted local water infrastructure.

Disaster
SEVERE STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES

Federal disaster declaration (FEMA DR-4663). Flood event — may have impacted local water infrastructure.

Violation
2 drinking water violations recorded

Contaminants: Public Notice.

Violation
1 drinking water violation recorded

1 health-based. Contaminants: TTHM.

Violation
1 drinking water violation recorded

1 health-based. Contaminants: TTHM.

Key contaminant findings

Based on the most recent EPA sampling data for Mayking's water supply.

Lead Within Limits
Detected: 0.0 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Violation history

Mayking's water system has 60 total violations on record, including 36 health-based violations. 6 remain unresolved.

OtherMCLMONMRTT
Most recent violations:
Oct 2017 Public Notice Open
Oct 2017 Public Notice Open
Apr 2017 TTHM Resolved
Jan 2017 TTHM Resolved
Oct 2016 TTHM Resolved

Flood & environmental risk

Letcher County has experienced 10 federally declared disasters since 1982. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies. Local water sources include Elkhorn Lake, North Fork Kentucky River, Elkhorn Creek.

SEVERE STORMS, STRAIGHT-LINE WINDS, FLOODING, LANDSLIDES, AND MUDSLIDES
Flood FEMA DR-4711
SEVERE STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES
Flood FEMA DR-4663
SEVERE, STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES
Flood FEMA DR-4595

Where does Mayking's water come from?

Mayking's drinking water comes from surface water (rivers, lakes, or reservoirs), supplied by 1 water system serving approximately 2,673 people. Surface water sources are more susceptible to contamination from runoff, industrial discharge, and algal blooms, requiring extensive treatment. Nearby water bodies include Elkhorn Lake (lake), North Fork Kentucky River (river), Elkhorn Creek (river).

What Mayking residents can do

Install a water filter

Recommended: NSF-certified water filter. This addresses the specific contaminants found in Mayking's water.

Request your utility's CCR

Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.

Monitor alerts during storms

Mayking's area has a history of flooding. After severe weather, watch for boil water advisories from your local utility.

Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.

Contaminant Alerts

Top contaminants to know

View all ↓
Lead (90th percentile)
Inorganic / Heavy Metal
Safe
0.0 ppb
EPA Action Level: 15 ppb · 0% of limit
Safe Level
Compliance Record

Violation summary

60
Total violations
36
Health-based
6
Active / unresolved
Oct 2017
Most recent violation
Compliance Record

Violations & advisories

60 Total
6 Active
36 Health-based
54 Resolved
8 SNC
Violations by category
Stage 1 Disinfectants and Disinfection Byproducts Rule
29
Stage 2 Disinfectants and Disinfection Byproducts Rule
8
Surface Water Treatment Rule
7
Public Notice Rule and Revised PN Rule
4
Interim and Long Term 1 Enhanced Surface Water Treatment Rule
4
Oct 2017 Active
Public Notice
Other Violation 0
Oct 2017 Active
Public Notice
Other Violation 0
Oct 2015 Active
Public Notice
Other Violation 0
Oct 2013 Active
Public Notice
Other Violation 0
Oct 2003 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Active
Compliance Violation
Monitoring 0
Apr 2017 Resolved
TTHM
Max Contaminant Level
SNC Health Resolved Jun 2017
Jan 2017 Resolved
TTHM
Max Contaminant Level
SNC Health Resolved Mar 2017
Oct 2016 Resolved
TTHM
Max Contaminant Level
SNC Health Resolved Dec 2016
Jul 2016 Resolved
TTHM
Max Contaminant Level
SNC Health Resolved Sep 2016
Mar 2016 Resolved
Revised Total Coliform Rule
Monitoring
Monitoring Resolved Mar 2016
Feb 2016 Resolved
Revised Total Coliform Rule
Monitoring
Monitoring Resolved Feb 2016
Jan 2016 Resolved
Revised Total Coliform Rule
Monitoring
Monitoring Resolved Jan 2016
Jan 2016 Resolved
Total Haloacetic Acids (HAA5)
Max Contaminant Level
SNC Health Resolved Mar 2016
Oct 2015 Resolved
Total Haloacetic Acids (HAA5)
Max Contaminant Level
SNC Health Resolved Dec 2015
Jan 2014 Resolved
TTHM
Monitoring & Reporting
SNC Monitoring & Reporting Resolved Mar 2014
Jan 2014 Resolved
Total Haloacetic Acids (HAA5)
Monitoring & Reporting
SNC Monitoring & Reporting Resolved Mar 2014
Oct 2013 Resolved
Surface Water Treatment Rule
Monitoring & Reporting
Monitoring & Reporting Resolved Oct 2013
Jan 2009 Resolved
TTHM
Max Contaminant Level
Health-Based Health Resolved Mar 2009
Oct 2008 Resolved
TTHM
Max Contaminant Level
Health-Based Health Resolved Dec 2008
Showing 20 of 60 violations
Environmental Risk

Drought conditions

D2 — severe drought

Letcher County is currently in D2 (severe drought) per the U.S. Drought Monitor (week of May 5, 2026). Drought can elevate disinfection-byproduct (TTHM/HAA5) levels and taste/odor issues as utilities draw from lower reservoirs.

3
Weeks at D2+ (current streak)
15.1%
Months in D2+ (last 30y)
3
Weeks at D2+ (last 5y)

Source: U.S. Drought Monitor, updated weekly by NDMC, USDA, and NOAA.

Environmental Risk

Flood & disaster history

10
Declared disasters
May 2023
Most recent
Flood
Most common type

Letcher County has experienced 10 federally declared disasters since 1982. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

May 2023
SEVERE STORMS, STRAIGHT-LINE WINDS, FLOODING, LANDSLIDES, AND MUDSLIDES
Flood FEMA #4711
Jul 2022
SEVERE STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES
Flood FEMA #4663
Apr 2021
SEVERE, STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES
Flood FEMA #4595
Apr 2018
SEVERE STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES
Flood FEMA #4358
May 2015
SEVERE WINTER STORM, SNOWSTORM, FLOODING, LANDSLIDES, AND MUDSLIDES
Flood FEMA #4218
Sep 2005
HURRICANE KATRINA
Hurricane FEMA #3231

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 0.0 15 ppb Inorganic Safe
Data source: EPA SDWIS, UCMR 5, local utility CCR.

Lead level trend (90th percentile)

EPA action level: 15 ppb
Lead has decreased by 0.6 ppb from 1999 (0.6 ppb) to 2023 (0.0 ppb).
Infrastructure

Water source & infrastructure

Primary Source
Purchased Surface Water
Operator
Local Government
Population Served
2,673
Water Systems
1
Water Source

Where Mayking's water comes from

Purchased Surface Water

Mayking's drinking water comes primarily from surface water sources such as rivers, lakes, or reservoirs.

Surface water systems require multi-stage treatment including coagulation, sedimentation, filtration, and disinfection to meet EPA Safe Drinking Water Act standards.

These sources can be impacted by seasonal changes, stormwater runoff, upstream agriculture, and industrial discharge.

The system is operated by local government ownership and serves approximately 2,673 people through 1 water system.

Local Hydrology

Water bodies near Mayking

Mayking is located near 3 notable water bodies. As a surface water system, these water bodies may directly influence the city's drinking water supply.

Elkhorn Lake
lake
North Fork Kentucky River
river
Elkhorn Creek
river
Infrastructure

Water systems serving Mayking

System Name PWSID Population Source
LETCHER COUNTY WATER DISTRICT KY0670462 2,673 SWP
Regional Comparison

How Mayking compares

Full Kentucky rankings →

Mayking's score of 82.2/100 is on par with the average of 80/100 among major Kentucky cities. It outscores 6 of 10 nearby cities.

Mayking (this city)
82.2
Louisville
82.2
Ft. Thomas
86.8
Owensboro
85.1
Kentucky avg
80
City Profile

About Mayking, KY

Wikipedia →

Mayking is an unincorporated community and census-designated place in Letcher County, Kentucky, United States. Its population was 475 as of the 2020 census. Mayking has a post office with ZIP code 41837, which opened on January 25, 1894. U.S. Route 119 passes through the community.

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Frequently asked questions

Is Mayking, KY tap water safe to drink?

Mayking's water quality earned a grade of B+ (82.2/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #136 out of 246 cities tested in Kentucky.

What contaminants are in Mayking's water?

Lead was measured at 0.0 ppb (90th percentile). 60 violations are on record.

How is Mayking's water quality grade calculated?

The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.

Do I need a water filter in Mayking?

Based on current data, basic filtration should suffice for additional peace of mind.

Where does Mayking's water come from?

Mayking's water is sourced from Purchased surface water. The city has 1 water system serving approximately 2,673 residents.

What health violations has Mayking's water system had?

Mayking has 36 health-based violations on record. The most recent violation was recorded in October 2017. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 6 violations remain unresolved.

How does Mayking's water compare to other cities?

Mayking ranks #136 out of 246 cities in Kentucky (better than 45% of state cities) and #7121 out of 15744 cities nationally (55th percentile). The grade of B+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Mayking's small water system affect quality?

Mayking's system serves approximately 2,673 residents. Small community water systems (under 3,300 people) may have fewer financial resources for infrastructure upgrades and advanced treatment technologies. However, they are held to the same EPA drinking water standards as larger systems. This system has 60 violations on record.