ZipCheckup grade for 57401: C.

A mixed picture - some signals here are worth your attention.

Your top priority: match a filter's certification to the violations (10 health-based violations). Check your ZIP → NSF certified filters

Health Violations Found
C 55

Aberdeen, SD (57401): PFAS Detected in Mapped Water Systems - 55/100

EPA data combined for 6 water systems mapped to this ZIP (largest mapped system: Aberdeen)

Health Violations Found PFAS Detected High County Radon Potential

Health-based violation records by water system:

EPA records for the water systems mapped to 57401 in Aberdeen, SD contain 20 recorded violations for inclusive record years 2021 through 2026, all mapped systems combined; 10 are marked health-based.

Data source: U.S. Environmental Protection Agency (EPA) SDWIS

Based on EPA Drinking Water FEMA Flood Data U.S. Census CDC Energy Information Admin. USGS Water Data & 9 more federal sources
Latest air quality, EPA records and weather alerts Current data temporarily unavailable
Current EPA violation data unavailable
Water records and current conditions
Current EPA violation data unavailable
Safety Score
C 55/100
Water Quality Issues 10 health-based violation records
Lead Risk Below action level 0.003 mg/L, 90th percentile, sample period ending 2025-06-30
NFIP Claim History Claim records 425 claims
Data confidence: High (direct measurement) Medium (sampled / sub-geography) Low (modeled / inferred) Methodology →

At a Glance

  • Water EPA records for water systems mapped to this ZIP show 10 health-based violations and 10 non-health-based (since 2021).
  • Lead The reported 90th-percentile lead result of 0.003 mg/L is below the EPA action level for water systems; EPA's health goal for lead is zero.
  • PFAS PFAS detected in UCMR5 sampling; see the PFAS section for each compound, compared with the federal PFAS MCL where one exists.
  • Radon EPA Zone 1 - highest county-level potential. This is not a home measurement; test before any threshold comparison.
  • Flood 425 cumulative NFIP claim records. This historical count is not a current property-risk verdict.
Contaminant Summary
Health Violations
20 violations 10 health-based PFAS detected
Report data assembled: Jul 27, 2026 EPA water-system identity: source date or period is not present in ZipCheckup's accepted source record EPA violation history: more than two update cycles old Lead, copper and UCMR measurements: source date or period is not present in ZipCheckup's accepted source record Consumer Confidence Report: source date or period is not present in ZipCheckup's accepted source record
C
ZIP-level Home Safety model score: 55 / 100
Bottom 13% of U.S. ZIP codes
6
Water Systems
27,989
People Served
10
Health Violations (since 2021)Median is 0
Surface water
Water Source
0.003 mg/L
Reported Lead Result1.3× the national median for this measure
Zone 1
County Radon Potential · High
$216K
Median Home Value34% above state median ($162K)

Get updates when new water-quality data is available for your area

Free alerts when new EPA data affects ZIP code 57401. No spam - just safety updates.

Unsubscribe anytime. We only send updates when your safety score changes. See our Privacy Policy.

Share Your Area Home Safety Score
Share on X Share on Facebook

Tip: You can also screenshot the card above to share it as an image.

See incorrect data? Let us know

Score Breakdown

Overall Home Safety Score: 55/100

This is the published model score. Component and domain values are shown independently; they are not added together on this page.

Canonical components

EPA water compliance
28/100
Observed
PFAS MCL screen
100/100
Observed
EPA radon zone
0/100
Observed
Annual EPA AirData AQI
100/100
Observed

Required domains

Drinking water
64/100
Indoor environment
0/100
Outdoor environment
100/100

Coverage: 4 of 4 components and 3 of 3 domains observed.

Model 4.0.0; series home-safety-v4-cross-vertical.

Safety & Health (8) CRITICAL

Your Water System

ZIP code 57401 in Aberdeen, South Dakota is mapped to the water system Aberdeen (EPA ID: SD4600020). This system provides water to approximately 27,989 people from surface water sources.

There are 6 community water systems serving this area.

Water Systems Serving This Area

System Name EPA ID Population Source
Aberdeen SD4600020 27,989 Surface water
Web Water Development Association SD4601089 20,750 Surface water
Prairiewood Property Owners SD4602125 300 Surface water
Jobee Acres SD4600019 108 Surface water
Rolling Meadows SD4600620 83 Surface water

Other Water Quality Reports in South Dakota

Nearby Water Quality Reports

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Aberdeen (SD4600020) on EPA.gov.

5 of the top compounds applied across the surrounding county in USGS pesticide-use estimates appear on EPA drinking-water monitoring lists. See the agricultural pesticide-use section.

📊 EPA Safe Drinking Water · View source →

Compliance History

2021 1 2022 1 2023 1 2024 3 2025 2
Health-based (MCL/TT) Other violations

PFAS Contamination Detected

PFAS ("forever chemicals") have been reported in samples from water systems associated with ZIP code 57401.

Detected compounds: PFBA.

Highest measured level: 0.0081 µg/L

Reverse osmosis (RO) and activated carbon block filters can reduce PFAS at the tap. Certifications list the compounds covered: an NSF/ANSI 53 or 58 claim for PFOA/PFOS does not cover every PFAS, so check that the product lists the compounds detected here.

📊 EPA UCMR5 · View source →
Environmental Hazards (11) HIGH
Home & Infrastructure (6) MODERATE

Possible home maintenance concerns - talk to a local expert.

Call (855) 384-4856

This is a free service. You will be connected with an independent service provider. We may receive compensation.

Cost & Community (9) HIGH

CPSC product recall notices

These national notices are not matched to this ZIP code or water system.

View all recalls →

📊 CPSC · View source →

Protect Your Home in Aberdeen

Based on local data for ZIP 57401, these services may benefit homeowners in your area.

Based on local data for your area. Use the tools below to explore your options.

Home & Flood Insurance

The ZIP code for this report in Aberdeen has 425 FEMA flood claims on record. Standard homeowner policies don't cover flood damage - make sure you're protected.

Typical cost: Flood insurance: premiums vary by property and flood zone; request a quote

Check Your Flood Zone (Free)

FEMA flood map lookup - see if your property is in a flood zone

Free tip: Check your FEMA flood zone at msc.fema.gov (free lookup)

Gutter Installation & Repair

The median home in 57401 was built around 1976. Aging gutters can cause foundation damage, basement flooding, and mold - a professional assessment can prevent costly repairs.

Typical cost: Gutter installation: typically $1,000–$2,500 for a standard home

Estimate Your Home Maintenance Costs

Window Replacement

The median build year of homes in Aberdeen is 1976; check the age and condition of your own windows. ENERGY STAR windows can save $101–$583/year on energy bills.

Typical cost: Window replacement: typically $300–$800 per window installed

Estimate Your Home Maintenance Costs

Roofing Inspection & Repair

Homes built around 1976 may be on their second or third roof. A professional inspection can catch damage before leaks start.

Typical cost: Roof inspection: typically $75–$300; repairs $300–$1,500

Estimate Your Home Insurance Needs

Service recommendations are based on public data for this ZIP code (FEMA, Census ACS, NWS). Actual needs vary by property. By calling, your information will be shared with an independent service provider. ZipCheckup may receive compensation. Cost estimates are approximate and vary by property, condition, and contractor.

Frequently Asked Questions

Is the tap water in 57401 safe to drink?

EPA SDWIS records 20 violations since 2021 across the water systems mapped to ZIP 57401 (primary system: Aberdeen), including 10 health-based. The violation table above shows which system each record belongs to. ZipCheckup last updated this page in July 2026. The federal source release date is unavailable, so that month is not presented as source currency.

Where does 57401's water come from?

The recorded water source for Aberdeen, a system mapped to ZIP code 57401, is Surface water. This system serves approximately 27,989 people.

How does Aberdeen water compare to the national average?

Aberdeen's Home Safety Score ranks lower than 87% of U.S. ZIP codes, and lower than 100% of ZIP codes within South Dakota.

How can I get my water tested in Aberdeen?

If Aberdeen supplies your home, contact it for its Consumer Confidence Report; otherwise contact the water utility that serves your address, or hire a certified lab for independent home water testing. The EPA recommends annual testing if you use a private well.

Is lead a concern in 57401 tap water?

The Lead and Copper Rule record selected for 57401 reports a 90th-percentile lead result of 0.003 mg/L for a water system mapped to this ZIP (record date 2025-06-30). The EPA action level is 0.015 mg/L. This result is below the EPA action level; it does not show the lead level in each home.

What is the radon risk for 57401?

57401 is mapped to a county in EPA Radon Zone 1 (high county-level radon potential; EPA recommends testing every home), located in Brown County. EPA radon zones range from Zone 1 (highest county-level potential) to Zone 3 (lowest). Testing your home is recommended regardless of zone.

Are there PFAS (forever chemicals) in 57401's water?

Yes, PFAS have been detected in samples from water systems mapped to 57401. Reverse osmosis and activated carbon filters certified to NSF/ANSI 53 or 58 specifically for PFOA/PFOS reduction can reduce PFAS.

What does the NFIP claim history show for ZIP 57401?

FEMA records contain 425 flood insurance claims filed in ZIP code 57401; the recorded rated-zone value (the most frequent one if there are several claims) is AE, which is claims evidence and may differ from the current FEMA map zone for a property. This is a substantial claim history, but claim count is not a count of distinct events or properties. Review FEMA's map for the specific property.

How to cite this page

APA ZipCheckup. (2026). Aberdeen, SD (57401): PFAS Detected in Mapped Water Systems - 55/100. https://zipcheckup.com/report/57401/
BibTeX 
@misc{zipcheckup-report-57401,
  author = {{ZipCheckup}},
  title  = {{Aberdeen, SD (57401): PFAS Detected in Mapped Water Systems - 55/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/report/57401/}
}

Page version: October 2026.

Nearby ZIP Code Reports

Water quality comparison for ZIP codes near 57401

ZIP Code City, State Distance Grade Violations
57427 Bath, SD 6.4 mi C 0
57479 Warner, SD 8.1 mi C 0
57402 Aberdeen, SD 10.7 mi N/A 0
57481 Westport, SD 14.8 mi C 0
57433 Columbia, SD 15.2 mi C 0
57460 Mansfield, SD 15.9 mi C 0
57474 Stratford, SD 15.9 mi C 0
57426 Barnard, SD 18.4 mi N/A 0
57445 Groton, SD 18.4 mi C 0
57461 Mellette, SD 20.9 mi N/A 0

Contaminants Detected in 57401

Learn more about the contaminants found in your water supply:

Overall safety breakdown

Home Safety Score →

Find the right water filter

Water Filter Matcher →

Compare filters, tests & services

Compare My Options →

Compare with another ZIP

Compare Tool →
Coverage: 15/17 risk factors Data sources →
Get alerts for 57401