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Official EPA SDWIS Verified ReportWater Quality & Testing GuideHistorical Record: No Recorded SDWIS Violations

ZIP Code 49864 Water Quality & Testing Report

Nahma, MI · Delta County County · Updated for 2026

Sahajul HaqueCompiled & verified by Sahajul Haque from official EPA SDWIS records
Public Health & Medical Notice: Drinking water quality data on this page reflects historical compliance records submitted under the Safe Drinking Water Act. This information does not constitute medical advice or a real-time safety guarantee. If you are pregnant, nursing, preparing infant formula, or immunocompromised, consult a healthcare provider. Boiling water kills biological pathogens, but does NOT remove chemical contaminants like lead, arsenic, or PFAS.
Quick EPA Verified Answer

Is Tap Water Safe to Drink in ZIP 49864 (Nahma, MI)?

Yes, tap water in ZIP code 49864 (Nahma, MI) is safe to drink under EPA Safe Drinking Water Act standards. Supplied by Nahma Township, the area earns an EPA Safety Grade of B (80/100) with 7 health violations, 0 ppb lead, and hard (162 mg/L / 9.5 GPG) water.

Safety Score
B

Water Safety Grade

Good — Minor issues on record

Health Violations

7

Total Violations

12

Lead Risk

High

Contaminants

2

About Tap Water in ZIP Code 49864

Tap water in ZIP code 49864 (Nahma, MI) is distributed by Nahma Township (EPA ID: MI0004600), serving approximately 95 residents. Based on EPA Safe Drinking Water Act compliance records, this system receives a water safety grade of B with a composite quality score of 80/100.

Water System

Nahma Township

EPA ID: MI0004600

Water Source

Ground Water

Population Served

95 residents

County

Delta County County, Michigan

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Lead Levels in ZIP 49864

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 49864. Contact Nahma Township to request lead testing results.

Lead exposure risk in 49864 is rated High. EPA models estimate a 69% 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

69%
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: Hard9.5 GPG · 162 mg/L

Water in ZIP 49864 is Hard (162 mg/L / 9.5 GPG). Residents may notice white mineral spots on glassware, reduced soap efficiency, and mineral scale on faucets and showerheads.

Recommendation: An ion-exchange water softener or descaler is recommended to prolong the life of water heaters, dishwashers, and plumbing.
Hardness (GPG)

Grains per gallon

9.5 GPG
Hardness (PPM / mg/L)

Parts per million CaCO3

162 mg/L
Appliance Scaling Risk
High / Severe

Official EPA SDWIS Database Entry

Utility: Nahma Township · PWSID: MI0004600

Verify on EPA.gov
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Violation History

Past 5 years — EPA SDWIS data

Nahma Township has recorded 7 health-based violations out of 12 total violations over the past 5 years.

Total Violations (5 yr)
12
Health-Based Violations
7
Unresolved Violations
0
Boil Water Advisories
0
Compliance Risk
Critical

Regulatory compliance risk for this utility is rated Critical 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), Haloacetic Acids (HAA5).

Total Trihalomethanes (TTHM)Haloacetic Acids (HAA5)

⚖ Enforcement Actions

EPA or state regulators have issued 10 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

Lower potential

Zone 3
Annual Flood Risk Cost

Estimated annual flood-related costs per property

$2

EPA Radon Zone 3 — lower radon potential, though the EPA still recommends testing all homes.

Water Quality Testing in ZIP 49864

Tap Water & Well Testing Recommendations

Residents in ZIP code 49864 served by Nahma Township 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 Michigan Department of Environment, Great Lakes, and Energy.
Certified Lab Testing: Always use an EPA-certified drinking water laboratory in MI for formal legal or real estate compliance testing.

🛡 What Should You Do? — ZIP 49864 Recommendations

  • ✓ Run cold water for 30 seconds each morning before use — especially if pipes are old
  • ✓ Request your annual Consumer Confidence Report from Nahma Township
  • ✓ If your home was built before 1986, consider testing your own tap for lead
  • ✓ Use a pitcher filter (NSF/ANSI 42 certified) for improved taste

Recommended Taste & Safety Filter:

🚰

NSF/ANSI 53 Certified Pitcher Filter

Best for removing aesthetic chlorine, odors, and low-level heavy metals.

Filter Selection Guide →

Frequently Asked Questions — ZIP 49864 Water Quality

Is tap water safe to drink in ZIP code 49864?+
Yes — tap water in 49864 (Nahma, MI) meets EPA standards with a water safety grade of B. No health-based violations are on record in the past 5 years.
How do I get my water tested in ZIP 49864 (Nahma, MI)?+
To test water quality in ZIP 49864, you can order a certified drinking water test kit or send water samples to an EPA/NELAP certified laboratory in MI. Certified testing checks for lead, coliform bacteria, nitrates, hardness, and PFAS that standard test strips miss. Contact Michigan Department of Environment, Great Lakes, and Energy for a list of certified regional labs.
How hard is the tap water in 49864?+
Tap water in 49864 is classified as Hard with an estimated mineral hardness of 162 mg/L (9.5 GPG). An ion-exchange water softener or descaler is recommended to prolong the life of water heaters, dishwashers, and plumbing.
Should I test private well water in 49864?+
Yes. Unlike municipal systems, private wells in 49864 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 49864 tap water?+
Lead level data is not available in EPA records for 49864. Contact your utility for details.
Is there an active boil water notice in 49864?+
There are currently no active boil water advisories on record for 49864. Water treatment systems are operating within normal parameters.
Who provides tap water to 49864?+
Tap water in ZIP code 49864 is provided by Nahma Township (EPA ID: MI0004600), serving approximately 95 residents.
What water filter should I use in 49864?+
Based on water metrics for 49864, 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 49864 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 Nahma Township. 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 →