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

ZIP Code 58418 Water Quality & Testing Report

Bowdon, ND · Wells 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 58418 (Bowdon, ND)?

Caution / Filtration Recommended: Tap water in ZIP code 58418 (Bowdon, ND) has compliance concerns, earning an EPA Safety Grade of D (53/100) due to 0 health violation(s) and 8.7 ppb lead. While treated by Central Plains Water District, residents are advised to use an NSF/ANSI 53 certified water filter for drinking and cooking.

Safety Score
D

Water Safety Grade

Poor — Multiple violations recorded

Health Violations

0

Total Violations

2

Lead Risk

Very High

Contaminants

0

About Tap Water in ZIP Code 58418

Tap water in ZIP code 58418 (Bowdon, ND) is distributed by Central Plains Water District (EPA ID: ND5201309), serving approximately 3,504 residents. Based on EPA Safe Drinking Water Act compliance records, this system receives a water safety grade of D with a composite quality score of 53/100.

Water System

Central Plains Water District

EPA ID: ND5201309

Water Source

Ground Water

Population Served

3,504 residents

County

Wells County County, North Dakota

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Lead Levels in ZIP 58418

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

Lead Level: 8.7 ppb — Moderate

The 90th percentile lead level in 58418 is 8.7 ppb. This is below the EPA action level of 15 ppb, but above ideal health goals. Consider a certified lead-reducing filter.

Lead exposure risk in 58418 is rated Very High. EPA models estimate a 72% exposure probability based on housing and infrastructure age.

Lead Level (90th percentile)
8.70 ppb (0.0087 mg/L)
Lead Exposure Risk Rating
Very High
Lead Exposure Probability

EPA model estimate based on housing age and infrastructure

72%
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 Hard14.1 GPG · 241 mg/L

Water in ZIP 58418 is Very Hard (241 mg/L / 14.1 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

14.1 GPG
Hardness (PPM / mg/L)

Parts per million CaCO3

241 mg/L
Appliance Scaling Risk
High / Severe

Official EPA SDWIS Database Entry

Utility: Central Plains Water District · PWSID: ND5201309

Verify on EPA.gov
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Violation History

Past 5 years — EPA SDWIS data

Central Plains Water District has recorded 2 violations, but none are health-based (e.g., administrative or monitoring infractions).

Total Violations (5 yr)
2
Health-Based Violations
0
Unresolved Violations
0
Boil Water Advisories
0
Compliance Risk
Moderate

Regulatory compliance risk for this utility is rated Moderate based on past reporting and enforcement records.

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Contaminants Detected

Contaminants with health-based violations on record

No health-based contaminant violations are on record for ZIP code 58418 under the Safe Drinking Water Act.

⚖ Enforcement Actions

EPA or state regulators have issued 2 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

Highest potential

Zone 1
Energy Burden

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

2.69%

EPA Radon Zone 1 — highest potential for radon in indoor air. Homeowners should test their home for radon and consider mitigation if levels exceed 4 pCi/L.

Water Quality Testing in ZIP 58418

Tap Water & Well Testing Recommendations

Residents in ZIP code 58418 served by Central Plains 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 North Dakota Department of Environmental Quality.
Certified Lab Testing: Always use an EPA-certified drinking water laboratory in ND for formal legal or real estate compliance testing.

🛡 What Should You Do? — ZIP 58418 Recommendations

  • 🚨 Install a certified NSF/ANSI 53 or 58 (reverse osmosis) filter immediately for drinking and cooking
  • 🚨 Do not give unfiltered water to children, pregnant women, or immunocompromised individuals
  • 🚨 Contact Central Plains Water District to request the current violation status and corrective action plan
  • 🚨 Report concerns to your state environmental agency or call the EPA hotline: 1-800-426-4791
  • 🚨 Consider having your home's tap water independently tested by a certified lab

Recommended Water Treatment Systems:

REQUIRED FOR SAFETY
🏺

NSF 53 Lead Pitcher Filter

Certified to remove lead. Recommended for immediate protection.

Lead Filter Guide →
STRONGLY RECOMMENDED
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NSF 58 Under-Sink RO System

Reverse Osmosis system certified to remove PFAS, heavy metals, and viruses.

RO System Guide →

Frequently Asked Questions — ZIP 58418 Water Quality

Is tap water safe to drink in ZIP code 58418?+
Tap water in 58418 has a below-average safety grade of D due to compliance issues. We recommend using a certified water filter for drinking and cooking.
How do I get my water tested in ZIP 58418 (Bowdon, ND)?+
To test water quality in ZIP 58418, you can order a certified drinking water test kit or send water samples to an EPA/NELAP certified laboratory in ND. Certified testing checks for lead, coliform bacteria, nitrates, hardness, and PFAS that standard test strips miss. Contact North Dakota Department of Environmental Quality for a list of certified regional labs.
How hard is the tap water in 58418?+
Tap water in 58418 is classified as Very Hard with an estimated mineral hardness of 241 mg/L (14.1 GPG). A whole-home water softener system is strongly recommended to protect plumbing and home appliances.
Should I test private well water in 58418?+
Yes. Unlike municipal systems, private wells in 58418 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 58418 tap water?+
The 90th percentile lead level in 58418 is 8.7 ppb. The EPA action level is 15 ppb. This is below the EPA action level.
Is there an active boil water notice in 58418?+
There are currently no active boil water advisories on record for 58418. Water treatment systems are operating within normal parameters.
Who provides tap water to 58418?+
Tap water in ZIP code 58418 is provided by Central Plains Water District (EPA ID: ND5201309), serving approximately 3,504 residents.
What water filter should I use in 58418?+
Based on water metrics for 58418, we recommend Lead & Microplastic Filter. Look for certifications such as NSF/ANSI 53 (Lead Reduction), NSF/ANSI 42 (Particulate/Taste).

Data Sources & Methodology

Water quality data for ZIP code 58418 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 Central Plains 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 →