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YOUR LOCAL WATER GUIDE

Water testing & filtration in Holliston, MA

Holliston has its own groundwater supply and town treatment plants. Start with the town report and a test of your own taps before choosing a filter or softener.

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A QUICK WAY TO START

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Answer a few questions to find providers with services that fit your needs.

For health questions about a test result, speak to a certified lab or your local board of health.

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Local water information

  • The 2025 town report identifies five public groundwater wells. Wells 4, 5, 6 and 7 receive filtration to remove iron and manganese. Source-water treatment does not establish that every home needs another filter. Source.

  • The report lists PFAS6 results from 4.58 to 10.1 parts per trillion, below the Massachusetts 20-parts-per-trillion limit, and marks no PFAS6 violation. PFAS6 means a group of six persistent manufactured chemicals. Source.

  • It also describes a lead-and-copper sampling-plan noncompliance notice. That procedural issue is not the same as a confirmed lead exceedance at your tap. Source.

A public-system result is not a test of a separate private well or every home’s plumbing. This page is background information, not a safety certification. For current restrictions or health advice, follow your water supplier and Board of Health.

LOCAL PROVIDERS

Providers serving Holliston

Ask about service at your address, appointment availability and what is included before booking.

About free water assessments

Get a free water test: ask Aquatek Filtration & Pump about its advertised complimentary in-home water analysis. Call 508-869-0499 and confirm your address, availability and what is included. This is a dealer assessment, not a promise of free certified PFAS, bacteria, arsenic or radon testing.

YOUR NEXT STEP

Get a free
water test.

Start by asking about a basic dealer water assessment. Know what is included before booking.

Free assessments are not the same as certified laboratory testing. PFAS, bacteria, arsenic and radon tests may cost extra. Availability is not guaranteed.

Submitting a request does not book an appointment. To arrange a visit, contact a listed provider directly.

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COMMON QUESTIONS

Water questions in Holliston

Where does Holliston’s drinking-water information come from?

Holliston’s public supply comes from groundwater wells and town treatment plants. Local source. Public-system reports do not describe every property’s taps or a separate private well.

What does Holliston’s report say about iron and manganese?

The 2025 town report identifies five public groundwater wells and describes iron and manganese filtration at Wells 4, 5, 6 and 7. These are public-system facts, not measurements from every home. Local source.

Which listed providers serve Holliston?

Providers listing service in Holliston include Aquatek Filtration & Pump, Kiley Plumbing & Heating, SumZero Energy Systems, Culligan Water Filtration of New England, Endless Energy, Fei Plumbing & Heating, S.A.A.B. Plumbing and Heating, Harbor Home Services, Caswell Plumbing & Heating, Rodenhiser Home Services, Precision Heating & Cooling / Precision Home Services. Ask about availability at your address and what services are included. A listing is not an endorsement.

Where can I arrange water testing for a home in Holliston?

Use the Water testing provider filter to find listed testing services, or search the MassDEP-certified laboratory directory. Ask the lab which analyses its certification covers. A basic dealer assessment is not a certified laboratory panel.

Can this guide interpret a test result from my Holliston home?

No. The guide provides local background and provider information, not a safety certification or a system recommendation. For health questions about a test result, speak to a certified lab or your local board of health.