ONTARIO, CITY OF
Drinking water quality, contact, and Consumer Confidence Report
Serving 2 cities in ID, OR · PWSID OR4100587
ONTARIO, CITY OF serves 14,465 people. See EPA records and contact info below.
- People served
- 14,465
Data sources: EPA SDWIS, ONTARIO, CITY OF's published Consumer Confidence Report, Oregon Department of Environmental Protection.
This page summarizes publicly available EPA and CCR records. For health decisions about your water, consult your utility or a licensed professional.
Official ONTARIO, CITY OF Resources
ONTARIO, CITY OF Service Area
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This map shows the approximate service area for ONTARIO, CITY OF. Actual coverage may vary. Contact the utility directly to confirm service availability at your address.
ONTARIO, CITY OF Water Quality Grade
Water meets all health guidelines with no violations.
Grade is calculated based on contaminants exceeding health guidelines (MCLG) and EPA Maximum Contaminant Level violations. A = Excellent (90-100), B = Good (80-89), C = Fair (70-79), D = Poor (60-69), F = Failing (<60).
Is ONTARIO, CITY OF Water Safe to Drink?
ONTARIO, CITY OF has reported 1 contaminant 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 14,465 people across 2 cities in ID, OR. Water quality can vary by location within the service area. Check individual city pages below for detailed contaminant data specific to your area.
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ONTARIO, CITY OF Service Area
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ONTARIO, CITY OF Contact & Information
Phone
Mailing Address
B2B Contact Data
B2B Contact Data Available
Contacts for ONTARIO, CITY OF
| 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
Disinfectant Used
hypochlorite
ONTARIO, CITY OF 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 ONTARIO, CITY OF 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.
Recommended Water Filters for ONTARIO, CITY OF
Based on water quality data from cities served by ONTARIO, CITY OF, we recommend NSF-certified filters that can remove contaminants above health guidelines.
Frequently Asked Questions about ONTARIO, CITY OF
Is ONTARIO, CITY OF water safe to drink?
Does ONTARIO, CITY OF have PFAS in its water?
How do I pay my ONTARIO, CITY OF water bill?
How many people does ONTARIO, CITY OF serve?
What cities does ONTARIO, CITY OF serve?
Does ONTARIO, CITY OF have any EPA violations?
What is ONTARIO, CITY OF's phone number?
Where can I find ONTARIO, CITY OF's Consumer Confidence Report?
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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: ONTARIO, CITY OF's most recent published Consumer Confidence Report (CCR), where available.
- Service area & contact: EPA SDWIS plus the Oregon Department of Environmental Protection / Drinking Water program.
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 ONTARIO, CITY OF? 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 ONTARIO, CITY OF.
- 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.
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