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County · Massachusetts

Norfolk County, Massachusetts: drinking water records

Explore EPA records for 39 community water systems across 40 ZIP codes in Norfolk County, then find water-testing resources and available recent monitoring-station readings.

In focus39Community water systems
Public records. Clearer context.

Data as of EPA UCMR 5 final release, August 2026 (file dated Aug 28, 2026) · EPA SDWIS 2026Q2 (file dated Jul 9, 2026). How we build these pages

Drinking-water records

EPA survey and compliance records are historical reports. UCMR 5 results are available for 27 of the 39 listed systems in this snapshot. A system with no reported PFAS detection is not a test of every tap or every contaminant.

27
systems in EPA's PFAS survey
22
systems where PFAS was found
19
systems at or above the PFOA or PFOS limit, on the yearly-average basis EPA uses
22
systems that have reached the lead action level
8
systems with a health-based violation since 2016

System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.

Water systems in this county

All 39 active community systems in the available county records, sorted by record completeness. Scroll the table to explore more systems.

Water systemPeople servedPFAS survey resultsPFAS foundHealth-based violationsLead, 9 in 10 homes at or below
Dedham Westwood Water Dist. MA307300041,630240412 ppb
Bellingham DPW Water Sewer Division MA202500016,556120363.6 ppb
Medfield Water Dept. MA217500012,713180517 ppb
Plainville Water Department MA42380008,805240482 ppb
Quincy Water Dept. (MWRA) MA3243000106,000120008.7 ppb
Brookline Water and Sewer Division MA304600063,191120001.3 ppb
Weymouth Water Department MA433600057,871180101 ppb
Braintree Water and Sewer Dept. MA404000039,143120504.8 ppb
Randolph Water Department MA424400035,114120603 ppb
Franklin Water Department MA210100033,706420502 ppb
Needham Water Dept MA319900031,664180205 ppb
Norwood Water Dept. (MWRA) MA422000029,909120005 ppb
Wellesley Water Division MA331700029,550300603.5 ppb
Stoughton Water Department MA428500029,281391503 ppb
Milton Water Dept. (MWRA) MA318900028,630120007.7 ppb
Walpole Water Dept MA430700024,070120601.8 ppb
Canton Water Dept MA405000022,766240401.4 ppb
Foxboro Water Department MA409900018,721180500 ppb
Sharon Water Dept MA426600016,846360603 ppb
Medway Water Department MA217700014,176120400 ppb
Wrentham Water Division MA435000012,190180501 ppb
Holbrook Public Works Dept MA413300011,405120701 ppb
Millis Water Dept MA21870009,055240501.5 ppb
Norfolk Water Division MA22080007,602240500 ppb
Cohasset Water Dept MA40650007,555120502 ppb
Town of Avon MA40180004,777120201.4 ppb
Mci Norfolk/Cedar Junction/Walpole MA22080012,20060001 ppb
Aquarion Water Company (Dover) MA30780061,9290015 ppb
Wrentham Developmental Center MA43500019370030 ppb
Mount St Marys Abbey MA43500036000226 ppb
Old Farm Road Water Trust MA3078001400016.7 ppb
Wellesley College MA33170013,0000004.3 ppb
Southfield Redevelopement Authority MA43360072,3000000 ppb
Glen Ridge Residents Trust MA30780021310002.5 ppb
Aquarion Water Co. (Springdale Farms) MA30780081260001.6 ppb
Meadowbrook Water Trust MA3078005570000 ppb
Bishops Landing Condominiums MA4285007500004.8 ppb
Randolph/Holbrook Joint Water Board MA424400146,519000not reported
Tri Town Water Board MA404000225000not reported

USGS · Monitoring stations

The water, more recently.

Available station readings in Norfolk County, Massachusetts. Each measurement keeps its time, unit and original source.

These readings describe water at a monitoring station. They do not test your tap, measure PFAS or lead, or determine whether water is safe to drink or swim in.

Recent observations load when this section comes into view.

Station coverage and available measurements vary by county.

Explore USGS Water Data
How these readings update

We check for updates every 10 minutes while this section is visible and show supported observations from the last 48 hours. The time beside a reading is when USGS measured it; the checked time is when our service retrieved the response. We mark a reading more than 6 hours old as older. Provisional observations can change after USGS review. A missing reading does not mean zero or clean water.

Temperature, pH, dissolved oxygen, turbidity, conductivity, streamflow and water level are shown only where a station reports them. Different measurements have different units and sampling intervals. USGS data and documentation.

Your next step

Water testing, reports & local help.

Use these official directories to find your drinking-water agency, a certified laboratory and public water records. We have not yet added an individually reviewed local resource list for this county.

Official national directories

Water testing

Find your state’s private-well program

EPA’s state directory points well owners to local program information. Services and eligibility vary by state and county.

U.S. Environmental Protection Agency
Source reviewed · Source updated

Water testing

Find a certified drinking-water laboratory

Use EPA’s directory to reach your state’s laboratory certification program. EPA does not provide on-request testing of residential drinking water.

U.S. Environmental Protection Agency
Source reviewed · Source updated

Public records

Find your utility’s Consumer Confidence Report

EPA links to community water-system reports and explains how to read them. Look for your actual supplier rather than assuming every address in a county shares one system.

U.S. Environmental Protection Agency
Source reviewed · Source updated

Public records

Explore USGS water observations

Find current and historical observations from USGS monitoring locations, including available stream, lake, and groundwater data. Measurements vary by station and do not replace a test of your household water.

U.S. Geological Survey
Source reviewed

A county overview cannot identify every property’s water provider. If you use a public water system, confirm its name on your bill and request its annual Consumer Confidence Report. Private wells need their own testing; public-system records do not describe a private well.

Understand water testing and laboratory reports

Resource descriptions are compiled by Tap Water Lookup. Review dates describe our source check, not a new water sample. How we review sources · Suggest a correction

Explore your area

Local coverage in Norfolk County

40ZIP areas in this overview

Explore the water-system records, recent station readings and testing resources on this county page. They describe the systems and stations identified in each section; they are not a separate water test for every community.

Towns and communities

  • Bellingham
  • Braintree Town
  • Brookline
  • Dedham
  • Dover
  • Foxborough
  • Franklin Town
  • Holbrook
  • Medfield
  • Millis-Clicquot
  • Milton
  • Needham
  • Norwood
  • Quincy
  • Randolph Town
  • Sharon
  • Walpole
  • Wellesley
  • Weymouth Town
Explore water-system recordsFind water-testing resources
View ZIP areas and understand coverage
  • 02019Bellingham
  • 02021
  • 02025
  • 02026Dedham
  • 02030Dover
  • 02032
  • 02035Foxborough
  • 02038Franklin Town
  • 02052Medfield
  • 02053
  • 02054Millis-Clicquot
  • 02056
  • 02062Norwood
  • 02067Sharon
  • 02071
  • 02072
  • 02081Walpole
  • 02090Norwood
  • 02093
  • 02169Quincy
  • 02170Quincy
  • 02171Quincy
  • 02184Braintree Town
  • 02186Milton
  • 02188Weymouth Town
  • 02189Weymouth Town
  • 02190Weymouth Town
  • 02191Weymouth Town
  • 02322
  • 02343Holbrook
  • 02368Randolph Town
  • 02445Brookline
  • 02446Brookline
  • 02457Wellesley
  • 02467Brookline
  • 02481Wellesley
  • 02482Wellesley
  • 02492Needham
  • 02494Needham
  • 02762

These Census ZIP Code Tabulation Areas are grouped here by their largest county overlap. A ZIP area can cross county lines and contain several water suppliers or private wells. Place labels reflect Census geography, not verified postal city names or utility service boundaries.

Records for these areas are currently presented in this county overview rather than individual ZIP reports. An unpublished report does not mean there are no water records. Confirm your supplier on your water bill; if you use a private well, testing your own well is the relevant next step.

Beyond this county page

Keep reading. Compare nearby.

PFASChoosing a PFAS filterPFAS was found in 22 of the 27 systems EPA surveyed here. See how to check a filter’s certified PFAS reduction.LeadChoosing a lead filter22 systems here have reached the lead action level. See how to check a filter’s lead-reduction certification.Your utilityFind your annual water reportConfirm the supplier on your bill, then read its Consumer Confidence Report for local results.

Counties near Norfolk County

All Massachusetts counties

Sources and scope

EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Database prepared 2026-09-03.

Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.

Compiled by Tap Water Lookup from the sources identified on this page. Read the methodology and review process.

Keep exploring

Every record tells
part of the story.

Find a place. Read the measurements.
Understand the context.

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