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WaterSafeCheck
Official EPA SDWIS Verified ReportWater Quality & Testing GuideStatus: Normal Operations

ZIP Code 47666 Water Quality & Testing Report

Patoka, IN · Gibson County County · Updated for 2026

Quick EPA Verified Answer

Is Tap Water Safe to Drink in ZIP 47666 (Patoka, IN)?

Caution / Filtration Recommended: Tap water in ZIP code 47666 (Patoka, IN) has compliance concerns, earning an EPA Safety Grade of C (69/100) due to 1 health violation(s) and 0 ppb lead. While treated by Patoka Water & Electric, residents are advised to use an NSF/ANSI 53 certified water filter for drinking and cooking.

Safety Score
C

Water Safety Grade

Fair — Some compliance concerns

Health Violations

1

Total Violations

5

Lead Risk

High

Contaminants

1

About Tap Water in ZIP Code 47666

Tap water in ZIP code 47666 (Patoka, IN) is distributed by Patoka Water & Electric (EPA ID: IN5226007), serving approximately 750 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 69/100.

Water System

Patoka Water & Electric

EPA ID: IN5226007

Water Source

Ground Water

Population Served

750 residents

County

Gibson County County, Indiana

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Lead Levels in ZIP 47666

EPA action level: 15 ppb | Public health goal: 0 ppb

Lead Data Not Available

Lead testing data was not found in EPA records for ZIP code 47666. Contact Patoka Water & Electric to request lead testing results.

Lead exposure risk in 47666 is rated High. EPA models estimate a 54% exposure probability based on housing and infrastructure age.

Lead Exposure Risk Rating
High
Lead Exposure Probability

EPA model estimate based on housing age and infrastructure

54%
Note: Lead levels above are the 90th percentile from EPA monitoring — meaning 90% of samples were at or below this level. Even "undetected" tap water lead doesn't account for lead leaching from home plumbing. If your home was built before 1986, individual tap testing is recommended.
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Water Hardness & Mineral Content

Grains per gallon (GPG) & Parts per million (PPM / mg/L)

Classification: Very Hard14.3 GPG · 244 mg/L

Water in ZIP 47666 is Very Hard (244 mg/L / 14.3 GPG). High concentrations of dissolved limestone minerals cause severe mineral buildup, stiff laundry, dry skin, and premature water heater wear.

Recommendation: A whole-home water softener system is strongly recommended to protect plumbing and home appliances.
Hardness (GPG)

Grains per gallon

14.3 GPG
Hardness (PPM / mg/L)

Parts per million CaCO3

244 mg/L
Appliance Scaling Risk
High / Severe

Official EPA SDWIS Database Entry

Utility: Patoka Water & Electric · PWSID: IN5226007

Verify on EPA.gov
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Violation History

Past 5 years — EPA SDWIS data

Patoka Water & Electric has recorded 1 health-based violation out of 5 total violations over the past 5 years. 1 violation remains unresolved in EPA tracking records.

Total Violations (5 yr)
5
Health-Based Violations
1
Unresolved Violations
1
Boil Water Advisories
0
Compliance Risk
High

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 1 contaminant with health-based violations in the past 5 years: Stage 2 DBP Rule.

Stage 2 DBP Rule

⚖ Enforcement Actions

EPA or state regulators have issued 9 enforcement actions to address compliance lapses.
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Water Source & Environmental Factors

Ground Water

This system draws water from underground aquifers. Groundwater is naturally filtered through soil and rock, but can still contain naturally occurring minerals like arsenic, radium, or nitrates.

Water Source Type
Ground Water
EPA Radon Zone

Moderate potential

Zone 2
Annual Flood Risk Cost

Estimated annual flood-related costs per property

$13
Energy Burden

% of household income spent on energy — indicator of older infrastructure

2.63%

EPA Radon Zone 2 — moderate radon potential. The EPA recommends testing your home regardless of zone designation.

Water Quality Testing in ZIP 47666

Tap Water & Well Testing Recommendations

Residents in ZIP code 47666 served by Patoka Water & Electric 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 Indiana Department of Environmental Management.
Certified Lab Testing: Always use an EPA-certified drinking water laboratory in IN for formal legal or real estate compliance testing.

🛡 What Should You Do? — ZIP 47666 Recommendations

  • ⚠ 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.

Lead Filter Guide →
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NSF 58 Under-Sink RO System

Advanced filtration for PFAS, fluoride, nitrates, and organic chemicals.

RO System Guide →

Frequently Asked Questions — ZIP 47666 Water Quality

Is tap water safe to drink in ZIP code 47666?+
Tap water in 47666 (Patoka, IN) meets major standards but has a grade of C due to minor past violations. Vulnerable populations may want to use a certified filter as a precaution.
How do I get my water tested in ZIP 47666 (Patoka, IN)?+
To test water quality in ZIP 47666, you can order a certified drinking water test kit or send water samples to an EPA/NELAP certified laboratory in IN. Certified testing checks for lead, coliform bacteria, nitrates, hardness, and PFAS that standard test strips miss. Contact Indiana Department of Environmental Management for a list of certified regional labs.
How hard is the tap water in 47666?+
Tap water in 47666 is classified as Very Hard with an estimated mineral hardness of 244 mg/L (14.3 GPG). A whole-home water softener system is strongly recommended to protect plumbing and home appliances.
Should I test private well water in 47666?+
Yes. Unlike municipal systems, private wells in 47666 are not regulated by the EPA or local utilities. Private well owners should test their water annually for coliform bacteria and nitrates, and every 3 to 5 years for heavy metals (lead, arsenic) and volatile organic compounds.
What is the lead level in 47666 tap water?+
Lead level data is not available in EPA records for 47666. Contact your utility for details.
Is there an active boil water notice in 47666?+
There are currently no active boil water advisories on record for 47666. Water treatment systems are operating within normal parameters.
Who provides tap water to 47666?+
Tap water in ZIP code 47666 is provided by Patoka Water & Electric (EPA ID: IN5226007), serving approximately 750 residents.
What water filter should I use in 47666?+
Based on water metrics for 47666, we recommend Reverse Osmosis (PFAS & Lead). Look for certifications such as NSF/ANSI 58 (Reverse Osmosis), NSF/ANSI 53 (Lead & VOCs), NSF/ANSI P473 (PFAS/PFOS).

Data Sources & Methodology

Water quality data for ZIP code 47666 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 Patoka Water & Electric. 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 →