Cohasset Water Dept
Drinking water quality, contact, and Consumer Confidence Report
Serving 1 city in MA · PWSID MA4065000
Cohasset Water Dept serves 7,554 people. PFAS detected above health guidelines (Perfluorooctanoic acid, Perfluorooctanesulfonic acid) — full contaminant breakdown below.
- People served
- 7,554
- Last EPA sample
- 2025-09-09
- PFAS
- Detected (2 compounds)
- Active violations
- None
Data sources: EPA SDWIS, Cohasset Water Dept's published Consumer Confidence Report, Massachusetts 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 Cohasset Water Dept Resources
Cohasset Water Dept Service Area
Loading map...
This map shows the approximate service area for Cohasset Water Dept. Actual coverage may vary. Contact the utility directly to confirm service availability at your address.
Cohasset Water Dept Water Quality Grade
Multiple water quality concerns identified.
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 Cohasset Water Dept Water Safe to Drink?
Cohasset Water Dept has reported 4 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 7,554 people across 1 city in MA. 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 Massachusetts →How does Massachusetts 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 Massachusetts
Learn more about the contaminants detected in Cohasset Water Dept:
Cohasset Water Dept Service Area
Get Cohasset Water Dept Alerts
Water quality news, test results, and filter recommendations for your area.
Free forever. Unsubscribe anytime. We never share your email.
Cohasset Water Dept Contact & Information
Phone
Mailing Address
B2B Contact Data
B2B Contact Data Available
Contacts for Cohasset Water Dept
| 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
Cohasset Water Dept 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 Cohasset Water Dept 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.
Cohasset Water Dept Annual Water Quality Reports
Historical reports are being compiled. Check back soon for archived water quality data.
What 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.
Concerned about what's in your water?
You're viewing 4 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 Cohasset Water Dept
Based on water quality data from cities served by Cohasset Water Dept, we recommend NSF-certified filters that can remove contaminants above health guidelines.
Filter guides for the contaminants detected here:
Frequently Asked Questions about Cohasset Water Dept
Is Cohasset Water Dept water safe to drink?
Does Cohasset Water Dept have PFAS in its water?
How do I pay my Cohasset Water Dept water bill?
How many people does Cohasset Water Dept serve?
What cities does Cohasset Water Dept serve?
Does Cohasset Water Dept have any EPA violations?
What is Cohasset Water Dept's phone number?
Where can I find Cohasset Water Dept's Consumer Confidence Report?
Similar water utilities in Massachusetts
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: Cohasset Water Dept's most recent published Consumer Confidence Report (CCR), where available.
- Service area & contact: EPA SDWIS plus the Massachusetts 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 Cohasset Water Dept? 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 Cohasset Water Dept.
- 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.
Stay Informed About Your Water Quality
Get EPA reports, filter recommendations, and safety alerts for your area.
Weekly water-quality guidance for your area. Unsubscribe anytime.