Question 1

Is Mason City Water Department water safe to drink?

Accepted Answer

Mason City Water Department has no open health-based violations currently recorded in EPA's federal database. No active exceedances of legal contaminant limits are on record. Review the Consumer Confidence Report for annual test results and detected levels.

Question 2

Does Mason City Water Department have PFAS contamination?

Accepted Answer

Mason City Water Department (PWSID: IA1750048) has 58 PFAS monitoring records in EPA's UCMR 5 dataset (2023–2025). UCMR 5 data represents monitoring under the unregulated contaminant monitoring rule — detection is not a violation determination but indicates PFAS was measured. View the full PFAS record on the PFAS Watchlist page for this utility.

Question 3

What contaminants has Mason City Water Department violated limits for?

Accepted Answer

Mason City Water Department has 5 violation records on file, primarily monitoring and reporting failures rather than exceedances of contaminant limits. Monitoring failures mean required test submissions were not filed — not necessarily that the water is unsafe.

Question 4

What water filter is recommended for Mason City Water Department?

Accepted Answer

Mason City Water Department has no current open health violations. For general water quality improvement, an NSF/ANSI 42-certified activated carbon filter removes chlorine, taste, and odor. For broader protection, a certified reverse osmosis system reduces the widest range of contaminants.

Question 5

Where can I find the official water quality report (Consumer Confidence Report) for Mason City Water Department?

Accepted Answer

Mason City Water Department (PWSID: IA1750048) is required to publish an annual Consumer Confidence Report (CCR) under the federal Safe Drinking Water Act. View official compliance records on EPA ECHO: https://echo.epa.gov/detailed-facility-report?fid=IA1750048. Contact the utility directly to request a printed copy of the most recent CCR.

Question 6

How can I independently test my water from Mason City Water Department?

Accepted Answer

You can test your tap water independently of Mason City Water Department's compliance monitoring. Use a state-certified laboratory — the EPA maintains a national directory of certified labs searchable by state and contaminant type at epa.gov/dwlabcert. For PFAS, confirm the lab holds EPA Method 533 or 537.1 certification. For lead, use a lab certified by Iowa's drinking water program. Find certified labs in Iowa at waterutilityreport.com/labs.

Mason City Water Department

Utility Overview

Detected Contaminants

Violation History

What should I do next?

Mason City Water Department — Water Quality FAQs

Explore This Water System

Common Questions About This Water System

Related Pages

Data Sources & Provenance