Frederick

ZipCheckup's reading of EPA records for Frederick (OK1011401): 10 health-based violations recorded since 2021. Over the period covered by EPA data, Frederick recorded 11 violations, each listed as resolved; the utility serves 3,940 residents.

Data: EPA SDWIS

System Overview

Frederick (EPA ID: OK1011401) is a community water system in Oklahoma that serves approximately 3,940 people from surface water sources.

This system serves ZIP code 73542 in Frederick.

Violation History

Status breakdown for accepted records with record years 2021-2026: 2 resolved, 9 archived, 0 addressed, and 0 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.

Recent Violations

Contaminants Detected

The following contaminants have been flagged in EPA records for this water system:

Health Risk Details

Uranium (EPA limit: 0.03 mg/L)

Kidney toxicity, increased cancer risk At-risk groups: people with kidney disease, households on private wells in areas with naturally occurring uranium.

Treatment options (verify a product is certified to reduce this contaminant): reverse osmosis, ion exchange (anion exchange), lime softening. Find the right filter →

Chlorite (EPA limit: 1 mg/L)

Anemia and nervous system effects in infants and children At-risk groups: infants, developing fetuses.

Treatment options (verify a product is certified to reduce this contaminant): ferrous sulfate reduction (treatment plants), activated carbon, reverse osmosis. Find the right filter →

Haloacetic Acids (HAA5) (EPA limit: 0.06 mg/L)

Increased risk of cancer

Treatment options (verify a product is certified to reduce this contaminant): granular activated carbon (GAC), carbon block filter, reverse osmosis. Find the right filter →

Lead & Copper

EPA Lead and Copper Rule evidence attributed directly to this water system:

No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.

Radon Risk in Service Area

1 of 1 ZIP records with known zones is in EPA Radon Zone 3.

The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.

ZIP Codes Served

Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by OK or modeled from parcel and building-footprint data.

• 73542 - Frederick

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Frederick (OK1011401) on EPA.gov.

Frequently Asked Questions

Is Frederick water safe to drink?

The accepted 2026Q2 ECHO snapshot shows no current noncompliance for Frederick; its 11 accepted 2021-2026 records are resolved or archived. Historical compliance status does not establish conditions at a specific tap.

How many people does Frederick serve?

Frederick serves approximately 3,940 people across 1 ZIP code in Oklahoma.

Where does Frederick get its water?

The primary water source is surface water.

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  author = {{ZipCheckup}},
  title  = {{Frederick (OK): 10 Health Violations}},
  year   = {n.d.},
  url    = {https://zipcheckup.com/water-system/ok1011401/}
}