Records currently available
Massachusetts record snapshot
These counts describe reviewed records available on Water Quality Lookup. They are not a count of every provider, city, or county in Massachusetts.
Reviewed profiles or limited identity records.
Local entry points, not service-area boundaries.
Guide sources reviewed September 13, 2026.
Cities
Massachusetts city entry points currently available
These Massachusetts city pages are local starting points. City boundaries and water service areas may not match, and more than one provider may serve a city.
Boston
Start with Boston Water and Sewer Commission, then confirm the provider for your address.
Open BostonWorcester
Start with Worcester DPW Water Operations, then confirm the provider for your address.
Open WorcesterSpringfield
Start with Springfield Water And Sewer Commission, then confirm the provider for your address.
Open SpringfieldWater systems
Massachusetts public water systems currently available
These previews link to reviewed system profiles with identifiers, report-year context, sources, and limitations.
Boston Water and Sewer Commission
PWSID 3035000 · Boston · Latest reviewed report 2025
View system profileWorcester DPW Water Operations
PWSID 2348000 · Worcester · Latest reviewed report 2025
View system profileSpringfield Water And Sewer Commission
PWSID 1281000 · Springfield · Latest reviewed report 2025
View system profileReport context
Three Massachusetts reports with different scopes
The existing Boston, Worcester, and Springfield profiles were reviewed July 12, 2026. Their 2025 report overviews preserve local system identity, sample categories, and dated disclosures; this guide’s review does not make those measurements current.
Boston · 3035000
Boston’s local appendix is separate from MWRA
Boston purchases treated surface water from the Massachusetts Water Resources Authority. Its report combines MWRA regional material for PWSID 6000000 with a Boston-local appendix for 3035000.
The Boston appendix discloses a lead action-level exceedance in fall 2025. The existing overview retains that dated disclosure and the local lead/copper results without treating MWRA’s regional tables as Boston-local measurements.
Worcester · 2348000
Keep source and distribution results separate
Worcester’s 2025 report separates source-water, distribution-system, lead/copper, and other analyses. The existing profile’s nitrate and chlorine overview keeps each result’s units and sampling context.
A highest individual sample or range endpoint is not automatically the same measure as a running annual average. Use the measure identified by the report when comparing a result with its listed standard.
Springfield · 1281000
Annual results and a later notice have their own dates
Springfield’s existing profile includes selected 2025 report results and a separately dated July 2, 2026 HAA5 notice. The later notice is not part of the 2025 monitoring period.
Read the provider’s current notices for updated instructions and the scope of any affected area. The historical report and notice do not establish today’s conditions at a tap.
Continue your Massachusetts lookup
Use the system directory, a plain-language guide, or the methodology page for the next step.
System directory
Massachusetts public water systems
Browse the reviewed system profiles currently available for this state.
Browse systemsLookup guide
How to look up your drinking water system
Start with a utility bill, PWSID, state lookup tool, or official report so you can find the public water system behind a city or provider name.
Read the lookup guideReport guide
How to read a water quality report
A plain-English walkthrough of Consumer Confidence Reports, including report years, detected contaminants, legal limits, violations, and source notes.
Read the report guideData and trust
Sources, methodology, and limitations
See how records are sourced, reviewed, dated, and limited before using a summary.
Review methodologyStatewide context
Understand Massachusetts system documents
Public-system oversight
Use MassDEP’s system identity
The Massachusetts Department of Environmental Protection regulates public drinking-water supplies. Its Public Water System Document Search identifies each supply by a PWS ID, name, class, and town.
Use the identifier shown in that record. Boston’s MassDEP record is 3035000; the MWRA wholesale system is a separate entity. A matching city or a supplier relationship does not confirm the provider for a particular property.
Document types
A registration certificate is not a water test
MassDEP’s search separates Annual Statistical Reports, Consumer Confidence Reports, Certificates of Registration, and Compliance Monitoring Schedules. The Boston example also lists approved lead/copper sampling sites and a service-line inventory.
The statistical report describes operations such as inventory and pumping volumes. A monitoring schedule describes required monitoring, while the CCR covers its reporting year. Choose the document that answers your question; a registration or schedule is not a sample result or current advisory.
Regional and local water
Keep the supplier and local-source labels
MWRA’s community PFAS resource includes local-source testing from communities that also use MWRA water. Those local-source records have their own system, sample, and reporting context.
Match the source and date before comparing results. This site’s selected city and system records are not a statewide inventory or a ranking, and a regional supplier’s results do not determine conditions in every building it supplies.
Official system lookup
Find a Massachusetts system and its documents
MassDEP’s public search application provides system details and documents organized by type and year. Its direct application is also useful when the Mass.gov introduction cannot be opened.
Search steps
Select the PWS and retrieve its documents
- Open the Public Water System Document Search application.
- Use Select a PWS by ID # or Select a PWS by Name. Match the number and provider name before continuing.
- Choose Retrieve Documents and allow the system details to load. Confirm the displayed PWS ID # and Name.
- Choose the relevant document type and year under Documents Available for Download. If the record or document is unclear, ask the provider for help and confirm service to your property.
Verified example
Boston Water and Sewer Commission · 3035000
Selecting 3035000 and choosing Retrieve Documents returned Boston Water And Sewer Commission (Mwra) during this review. The record included a 2025 Consumer Confidence Report and separately labeled registration, monitoring, and service-line documents.
The parenthetical MWRA relationship does not change Boston’s local PWSID to 6000000. Match the system described by the document before using its results.
Other official tools
Reports, notices, and household questions
Annual reports
Use the report year and request a usable copy
MassDEP’s search groups CCRs by year; Worcester’s Water and Sewer page also links current and archived reports. The three existing overviews above retain their original profile-review dates.
If a report is missing, a link fails, or you need another format or language, ask your utility for the specific year and what it can provide. A file being listed does not mean every document has been reviewed on this site.
Find a report through MassDEP →
Browse Worcester’s water reports →
Current notices and alerts
Match the notice to the provider and affected area
Springfield maintains Public Notices / Avisos públicos and separate disinfection-byproduct information. Boston publishes news and provider contacts. Check issue dates, affected areas, and later updates before applying a notice to your service.
AlertWorcester describes notifications by phone or email, including boil-water orders and other community alerts. Ask your own provider which notification options apply; enrollment or an empty archive does not prove that no current notice applies.
Check Springfield’s public notices →
Read Springfield’s disinfection-byproduct information →
Lead service lines and testing
Confirm pipe material separately from a water test
Boston’s lead guidance explains that its water-service map uses observations made at water meters and tells owners to contact the Commission to confirm pipe composition. A map classification is not a measurement of lead in household water.
MWRA’s testing page directs readers to their local water department and to MassDEP’s laboratory list for residential customers and private-well owners. Confirm the test, laboratory acceptance, and collection instructions before taking a sample.
PFAS records
Distinguish community sources from MWRA supply
MWRA’s community PFAS page describes testing of local sources in participating communities and links additional water-department information. It is not a statewide assessment or a household test.
The page includes records from different years. Check the named source, compounds, sample dates, and reporting limits with the provider; this guide does not turn historic tables or old regulatory text into a current compliance conclusion.
Private wells
Use a separate testing pathway
A report for Boston, Worcester, Springfield, or MWRA describes a public supply, not a private well. EPA’s private-well resources explain the owner’s testing and maintenance role.
For testing services, MWRA’s laboratory guidance links the MassDEP list for private-well owners and residential customers. Confirm available analyses and sample acceptance directly with the laboratory.
Lookup questions
Using Massachusetts water records
Should I use Boston’s PWSID or MWRA’s?
Use 3035000 for the Boston Water and Sewer Commission local record and appendix. MWRA regional material in the same report belongs to wholesale PWSID 6000000. Keep each table with the system it describes.
Does a Certificate of Registration show contaminant results?
MassDEP describes that certificate as registration with the state. Use the relevant CCR or sample record for testing information, and the provider’s current notice for present instructions. A Compliance Monitoring Schedule describes required monitoring, not the results of that monitoring.
Is Springfield’s July 2026 notice part of its 2025 report?
No. The existing profile preserves a July 2, 2026 provider notice separately from the 2025 annual-report results. Read each period and use the official notice index to check later updates.
Does Boston’s service-line map confirm my tap-water result?
No. BWSC asks owners to confirm pipe composition with the Commission. Pipe material, a household water sample, and a system-wide report provide different information.
Official sources
Official sources for Massachusetts
Use Massachusetts Department of Environmental Protection and the official sources below to verify system identity, record dates, and current notices before relying on a summary.
Statewide sources
Massachusetts records and guidance
PWSID 3035000 · Sources for this system
Boston Water and Sewer Commission
PWSID 2348000 · Sources for this system
Worcester DPW Water Operations
PWSID 1281000 · Sources for this system