ZIP Code 41143 Water Quality & Testing Report
Grayson, KY · Carter County County · Updated for 2026
Compiled & verified by Sahajul Haque from official EPA SDWIS recordsIs Tap Water Safe to Drink in ZIP 41143 (Grayson, KY)?
Caution / Filtration Recommended: Tap water in ZIP code 41143 (Grayson, KY) has compliance concerns, earning an EPA Safety Grade of C (64/100) due to 3 health violation(s) and 0.9 ppb lead. While treated by Rattlesnake Ridge Water District, residents are advised to use an NSF/ANSI 53 certified water filter for drinking and cooking.
Water Safety Grade
Fair — Some compliance concerns
Health Violations
3
Total Violations
3
Lead Risk
Moderate
Contaminants
2
Active Water Quality Issues Detected
EPA records show 2 unresolved violations. Contact Rattlesnake Ridge Water District for current status.
About Tap Water in ZIP Code 41143
Tap water in ZIP code 41143 (Grayson, KY) is distributed by Rattlesnake Ridge Water District (EPA ID: KY0220555), serving approximately 11,397 residents. Based on EPA Safe Drinking Water Act compliance records, this system receives a water safety grade of C with a composite quality score of 64/100.
Water System
Rattlesnake Ridge Water District
EPA ID: KY0220555
Water Source
Surface Water
Population Served
11,397 residents
County
Carter County County, Kentucky
Lead Levels in ZIP 41143
EPA action level: 15 ppb | Public health goal: 0 ppb
Lead Level: 0.9 ppb — Very Low
Lead exposure risk in 41143 is rated Moderate. EPA models estimate a 37% exposure probability based on housing and infrastructure age.
EPA model estimate based on housing age and infrastructure
Water Hardness & Mineral Content
Grains per gallon (GPG) & Parts per million (PPM / mg/L)
Water in ZIP 41143 is Hard (136 mg/L / 8 GPG). Residents may notice white mineral spots on glassware, reduced soap efficiency, and mineral scale on faucets and showerheads.
Grains per gallon
Parts per million CaCO3
Official EPA SDWIS Database Entry
Utility: Rattlesnake Ridge Water District · PWSID: KY0220555
Violation History
Past 5 years — EPA SDWIS data
Rattlesnake Ridge Water District has recorded 3 health-based violations out of 3 total violations over the past 5 years. 2 violations remain unresolved in EPA tracking records.
Regulatory compliance risk for this utility is rated High based on past reporting and enforcement records.
Contaminants Detected
Contaminants with health-based violations on record
EPA records identify 2 contaminants with health-based violations in the past 5 years: Total Trihalomethanes (TTHM), Chlorite.
⚖ Enforcement Actions
Water Source & Environmental Factors
Surface Water
This system draws water from lakes, rivers, or reservoirs. Surface water is treated to remove sediment, microorganisms, and chemical contaminants before reaching taps.
Moderate potential
Estimated annual flood-related costs per property
% of household income spent on energy — indicator of older infrastructure
EPA Radon Zone 2 — moderate radon potential. The EPA recommends testing your home regardless of zone designation.
Water Quality Testing in ZIP 41143
Tap Water & Well Testing Recommendations
Residents in ZIP code 41143 served by Rattlesnake Ridge Water District can test tap water or private well systems to verify water purity. Testing detects hidden contaminants before they impact family health.
Tap Water Testing Steps
- 1.Conduct a certified lead check if your home was constructed before 1986.
- 2.Use certified lab testing kits rather than uncalibrated test strips for regulated compliance.
- 3.Sample water from both your kitchen faucet and water heater to compare line purity.
Private Well Testing Steps
- •Test for Coliform bacteria and Nitrates annually.
- •Test for heavy metals, radon, and PFAS every 3 years.
- •Send samples to a state-certified drinking water laboratory recognized by Kentucky Department for Environmental Protection.
🛡 What Should You Do? — ZIP 41143 Recommendations
Some compliance concerns — take precautions
- ⚠ Use a certified NSF/ANSI 53 filter for drinking and cooking water if you have young children
- ⚠ Never give unfiltered tap water to infants in formula — use certified bottled or filtered water
- ⚠ Request a copy of the Consumer Confidence Report to see what was detected and when
- ⚠ Call the EPA Safe Drinking Water Hotline: 1-800-426-4791
Recommended Water Treatment Systems:
NSF 53 Lead Pitcher Filter
Specifically certified to reduce lead and copper at the tap.
NSF 58 Under-Sink RO System
Advanced filtration for PFAS, fluoride, nitrates, and organic chemicals.
Frequently Asked Questions — ZIP 41143 Water Quality
Is tap water safe to drink in ZIP code 41143?+
How do I get my water tested in ZIP 41143 (Grayson, KY)?+
How hard is the tap water in 41143?+
Should I test private well water in 41143?+
What is the lead level in 41143 tap water?+
Is there an active boil water notice in 41143?+
Who provides tap water to 41143?+
What water filter should I use in 41143?+
Data Sources & Methodology
Water quality data for ZIP code 41143 is compiled from the EPA Safe Drinking Water Information System (SDWIS), EPA ECHO enforcement database, UCMR5 unregulated contaminant monitoring, and Consumer Confidence Reports filed by Rattlesnake Ridge Water District. Safety scores are composite metrics derived from violation history, lead levels, enforcement actions, and infrastructure risk indicators. Data reflects a 5-year monitoring window. Last dataset update: 2024. View EPA source data →