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Onawa Municipal Water Plant
Drinking water quality, contact, and Consumer Confidence Report
Serving 1 city in IA · PWSID IA6739095
Onawa Municipal Water Plant serves 2,906 people. 3 contaminants currently exceed health-based guidelines — full breakdown below.
- People served
- 2,906
- Last EPA sample
- 2025-09-09
- PFAS
- Not detected
- Health-based violations since 2020
- 0
Data sources: EPA SDWIS, Onawa Municipal Water Plant's published Consumer Confidence Report, and compliance monitoring reported to EPA by Iowa DNR.
This page summarizes publicly available EPA and CCR records. For health decisions about your water, consult your utility or a licensed professional.
Official Onawa Municipal Water Plant Resources
Quick Actions
Help Paying Your Onawa Municipal Water Plant Water Bill
- Ask Onawa Municipal Water Plant about payment plans and assistance.
- Call 211 to reach local help with utility bills.Verified from 211.org
- Find your local Community Action Agency.Verified from communityactionpartnership.com
- The federal water-bill program (LIHWAP) ended in March 2024.Verified from acf.govVerified from csd.ca.gov
Water outage or no water?
Boil water advisories are issued by water systems and state agencies, and they change from day to day. Boil water advisories in Iowa
Onawa Municipal Water Plant Service Area
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This map shows the approximate service area for Onawa Municipal Water Plant. Actual coverage may vary. Contact the utility directly to confirm service availability at your address.
Onawa Municipal Water Plant Water Quality Grade
Not graded: Monitor
Onawa Municipal Water Plant reads Monitor. A letter grade is given only beside a Safe verdict.
Is Onawa Municipal Water Plant Water Safe to Drink?
Onawa Municipal Water Plant has reported 3 contaminants above EPA health-based guidelines (MCLGs) in at least one city served. We recommend reviewing individual city reports below for specific water quality details.
This utility serves 2,906 people across 1 city in IA. Water quality can vary by location within the service area. Check individual city pages below for detailed contaminant data specific to your area.
Get your water independently tested in Iowa →How does Iowa water quality rank nationally? →
Boil water advisories are issued by water systems and state agencies, and they change from day to day. Boil water advisories in Iowa
Fluoride in Onawa Municipal Water Plant Water
Onawa Municipal Water Plant
PWSID IA6739095
Onawa Municipal Water Plant reported 0.9 mg/L, at or above the 0.7 mg/L U.S. Public Health Service recommendation and below the 1.5 mg/L WHO guideline value and NTP neurodevelopment review level.
Onawa Municipal Water Plant Service Area
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Onawa Municipal Water Plant Contact & Information
Phone
Mailing Address
B2B Contact Data
B2B Contact Data Available
Contacts for Onawa Municipal Water Plant
| Name | Title | Phone | |
|---|---|---|---|
| J████ S████ | Water Treatment Supervisor | (555) ███-████ | j████@city████.gov |
| M████ J██████ | Utility Director | (555) ███-████ | m████@water████.org |
Water Sources & Treatment
Water Sources
Treatment Methods
Onawa Municipal Water Plant Consumer Confidence Report
A Consumer Confidence Report (CCR) is the EPA-mandated annual water-quality report every community water system must publish by July 1 each year (Safe Drinking Water Act §1414(c)(4)). It summarizes contaminants tested, MCL and MCLG comparisons, and any system violations from the prior calendar year.
A current CCR for Onawa Municipal Water Plant has not been published or validated on TapWaterData yet.
Residents: contact the utility directly using the phone number above, or check the EPA’s national CCR portal. Reports are typically distributed by mail or posted on the utility’s official website.
Onawa Municipal Water Plant Annual Water Quality Reports
We don’t have a link we can confirm belongs to this system, and we’d rather show none than the wrong utility’s. Iowa DNR publishes drinking-water reports for systems in this state.
Visit Iowa DNRWhat is a CCR? The Consumer Confidence Report (CCR) is an annual water quality report that water utilities are required by the EPA to provide to customers. It contains information about your water source, detected contaminants, and compliance status.
EPA Health-Based Violations Since 2020
Onawa Municipal Water Plant has no health-based EPA violation since 2020 (EPA data as of Q2 2026).
EPA SDWA violation data as of Q2 2026 (downloaded 2026-07-09).
Concerned about what's in your water?
You're viewing 3 contaminants above health-based guidelines here. Your own tap water can differ — upload your test (PDF or a photo) and we'll email a full plain-English reading of every number, free.
Your upload also helps us keep local water data accurate — we only ever share anonymized, area-level summaries.
Upload my testRecommended Water Filters for Onawa Municipal Water Plant
Based on water quality data from cities served by Onawa Municipal Water Plant, we recommend NSF-certified filters that can remove contaminants above health guidelines.
Frequently Asked Questions about Onawa Municipal Water Plant
Is Onawa Municipal Water Plant water safe to drink?
Does Onawa Municipal Water Plant have PFAS in its water?
How do I pay my Onawa Municipal Water Plant water bill?
How many people does Onawa Municipal Water Plant serve?
What cities does Onawa Municipal Water Plant serve?
Does Onawa Municipal Water Plant have any EPA violations?
What is Onawa Municipal Water Plant's phone number?
Where can I find Onawa Municipal Water Plant's Consumer Confidence Report?
Similar water utilities in Iowa
How we built this page
Water-quality and contact data on this page comes from public federal and state records. We update each utility's record whenever its underlying source publishes new data — typically within days of an EPA SDWIS refresh.
- Contaminants & violations: EPA Safe Drinking Water Information System (SDWIS) plus the Unregulated Contaminant Monitoring Rule (UCMR-5) for PFAS and emerging contaminants.
- Annual reports: Onawa Municipal Water Plant's most recent published Consumer Confidence Report (CCR), where available.
- Service area & contact: EPA SDWIS. The compliance records it holds for this system are reported to EPA by Iowa DNR, the state's drinking-water primacy agency.
Spotted a data issue? Use the Spotted something off? link at the bottom of the page — corrections feed back into the next data refresh. Learn more about TapWaterData.
Are you Onawa Municipal Water Plant? Publish your 2027 CCR
TapWaterData runs a free CCR publishing service for community water systems. Claim this listing to publish your Consumer Confidence Report here — it inherits this page's search authority and reaches every customer who Googles Onawa Municipal Water Plant.
- EPA-compliant distribution. Satisfies the 2027 Revised CCR Rule direct-URL requirement with an auditable archive.
- Publish once a year. Agent-assisted workflow; no login setup for small systems.
- Inherits this page's reach. Your published CCR appears directly on the page customers already find on Google.
Free for operators. No card required. Typical setup: 5 minutes.
Spotted something off on this page?
Residents keep our data honest.
This form corrects our data; it does not reach Onawa Municipal Water Plant. For a problem with your water now (discolored water, no water, low pressure, a leak), contact Onawa Municipal Water Plant directly.
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