Wa of Western Nassau
Drinking water quality, contact, and Consumer Confidence Report
Serving 38 cities in NY · PWSID NY2902830
Wa of Western Nassau serves 120,000 people. See EPA records and contact info below.
- People served
- 120,000
- Last EPA sample
- 2025-10-15
- PFAS
- Not detected above guidelines
- Health-based violations since 2020
- 0
Data sources: EPA SDWIS, Wa of Western Nassau's published Consumer Confidence Report, and compliance monitoring reported to EPA by New York State Dept of Health.
This page summarizes publicly available EPA and CCR records. For health decisions about your water, consult your utility or a licensed professional.
Official Wa of Western Nassau Resources
Wa of Western Nassau Service Area
Loading map...
This map shows the approximate service area for Wa of Western Nassau. Actual coverage may vary. Contact the utility directly to confirm service availability at your address.
Wa of Western Nassau Water Quality Grade
Not graded: Monitor
Wa of Western Nassau reads Monitor. A letter grade is given only beside a Safe verdict.
Is Wa of Western Nassau Water Safe to Drink?
Wa of Western Nassau has reported 2 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 120,000 people across 38 cities in NY. 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 New York →How does New York 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 New York
Wa of Western Nassau Service Area
Albertson, NY
Bellerose, NY
Bellerose Terrace, NY
Carle Place, NY
East Williston, NY
Elmont, NY
Floral Park, NY
Flower Hill, NY
Franklin Square, NY
Garden City, NY
Garden City South, NY
Great Neck Gardens, NY
Greenvale, NY
Harbor Hills, NY
Herricks, NY
Lake Success, NY
Malverne, NY
Malverne Park Oaks, NY
Manhasset Hills, NY
Munsey Park, NY
New Hyde Park, NY
North Hills, NY
North New Hyde Park, NY
North Valley Stream, NY
Old Westbury, NY
Plandome, NY
Plandome Heights, NY
Plandome Manor, NY
Roslyn, NY
Roslyn Estates, NY
Roslyn Harbor, NY
Roslyn Heights, NY
Russell Gardens, NY
Searingtown, NY
South Floral Park, NY
Stewart Manor, NY
Uniondale, NY
University Gardens, NY
Get the Weekly Water Brief
One email a week on water testing, treatment, and what water-quality data means for your home.
Free forever. Unsubscribe anytime. We never share your email.
Wa of Western Nassau Contact & Information
Mailing Address
B2B Contact Data
B2B Contact Data Available
Contacts for Wa of Western Nassau
| 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
Wa of Western Nassau 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 Wa of Western Nassau 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.
Wa of Western Nassau 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. New York State Dept of Health publishes drinking-water reports for systems in this state.
Visit New York State Dept of HealthWhat 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
Wa of Western Nassau 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 2 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 Wa of Western Nassau
Based on water quality data from cities served by Wa of Western Nassau, we recommend NSF-certified filters that can remove contaminants above health guidelines.
Frequently Asked Questions about Wa of Western Nassau
Is Wa of Western Nassau water safe to drink?
Does Wa of Western Nassau have PFAS in its water?
How do I pay my Wa of Western Nassau water bill?
How many people does Wa of Western Nassau serve?
What cities does Wa of Western Nassau serve?
Does Wa of Western Nassau have any EPA violations?
What is Wa of Western Nassau's phone number?
Where can I find Wa of Western Nassau's Consumer Confidence Report?
Similar water utilities in New York
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: Wa of Western Nassau'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 New York State Dept of Health, 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 Wa of Western Nassau? 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 Wa of Western Nassau.
- 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 Wa of Western Nassau. For a problem with your water now (discolored water, no water, low pressure, a leak), contact Wa of Western Nassau directly.
Check another location
Get the Weekly Water Brief
One email a week on water testing, treatment, and what water-quality data means for your home.
One email a week. Unsubscribe anytime.