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EPA SDWIS City OverviewWater Testing & Safety Guide

Stow, MA Water Quality Testing & Safety Report

EPA compliance records, water testing guidelines, and hardness metrics for all 1 ZIP code in Stow, Massachusetts

Sahajul HaqueData aggregated & verified by Sahajul Haque from federal SDWIS & ECHO filings
Quick EPA Verified Summary

Is Tap Water Safe to Drink in Stow, MA?

Tap water in Stow, MA receives an EPA Safety Grade of C (69/100) due to 0 health-based violation(s) and elevated lead risk. While treated by local utilities, residents are advised to test tap water and use an NSF/ANSI 53 certified filter for drinking and cooking.

Average Score

69/100

Health Violations

0

Water Hardness

Hard

160 mg/L (9.4 GPG)

High Lead Risk

0

of 1 ZIP codes

C

About Tap Water in Stow, MA

Drinking water in Stow, MA receives an average water quality grade of C (score: 69/100) across its 1 ZIP code. Safe Drinking Water Act compliance monitoring is managed by local utilities including Juniper Hill Water Company.

Water Quality Testing in Stow, MA

Tap Water & Well Water Testing Recommendations

Testing your drinking water in Stow confirms whether contaminants like lead, nitrates, bacteria, and PFAS are entering your home. While municipal utilities test water before distribution, private plumbing and private well systems require homeowner testing.

Tap Water Testing Checklist

  • 1.Identify your plumbing age: Homes built before 1986 in Stow may have lead solder or lead service lines.
  • 2.Request your utility's latest Consumer Confidence Report (CCR) for annual municipal baseline data.
  • 3.Use an EPA-certified laboratory or state-certified test kit for precision lead and PFAS detection (standard DIY strips cannot reliably measure trace heavy metals).
  • 4.Collect a "first draw" sample: Test water that has sat motionless in pipes for at least 6 hours to check for plumbing corrosion.

Private Well Water Testing Checklist

  • •Private wells in MA are not monitored by the EPA or Massachusetts Department of Environmental Protection — testing is 100% the homeowner's responsibility.
  • •Annual Test: Screen for Total Coliform Bacteria, E. coli, Nitrates/Nitrites, and pH every spring.
  • •Comprehensive Test (Every 3-5 Years): Test for heavy metals (Lead, Arsenic, Uranium), Volatile Organic Compounds (VOCs), and Hardness.
  • •Post-Disruption Testing: Immediately test well water following heavy floods, local construction, agricultural runoff, or sudden taste/odor changes.

Critical Water Testing Parameters for Stow Residents

ParameterHealth ReasonEPA Limit / Standard
Lead (Pb)Plumbing corrosion; dangerous neurotoxin for children15 ppb (Action Level) / 0 ppb Goal
Total Coliform & E. ColiBacterial contamination from sewage or surface runoff0 mg/L (Zero Tolerance)
Nitrates / NitritesFertilizer and septic tank seepage; causes blue baby syndrome10 mg/L (MCL)
Water Hardness (Ca & Mg)Affects appliance lifespan, scale buildup, and skin hydrationHard (>120 mg/L)
PFAS ("Forever Chemicals")Industrial non-stick chemicals linked to metabolic and immune issues4.0 ppt (EPA 2024 Rule)
State Regulatory Oversight: Environmental standards and certified water lab registries in MA are maintained by the Massachusetts Department of Environmental Protection.

Water Quality by ZIP Code — Stow, MA

Showing 1 of 1 monitored ZIP code in Stow

C
01775

Stow, MA

Score: 69/100✓ Clean Record

All Stow, MA ZIP Code Reports (1 Total)

01775

Nearby Cities Water Quality & Testing in Massachusetts

Compare tap water safety, EPA test scores, and water hardness across neighboring cities in Massachusetts:

Abington, MA1 ZIP code
Grade B
Accord, MA1 ZIP code
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Acton, MA1 ZIP code
Grade C
Acushnet, MA1 ZIP code
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Adams, MA1 ZIP code
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Agawam, MA1 ZIP code
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Allston, MA1 ZIP code
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Amesbury, MA1 ZIP code
Grade C

Frequently Asked Questions — Stow Water Quality & Testing

Is tap water safe to drink in Stow, MA?+
Tap water in Stow has a grade of C, indicating compliance concerns in recent years. Families with young children or pregnant women should consider using a certified NSF/ANSI 53 water filter for drinking and cooking.
How do I test water quality in Stow, MA?+
To test water quality in Stow, you can order an EPA-compliant drinking water test kit or submit samples to a state-certified environmental testing laboratory in MA. Testing is especially recommended for homes built before 1986 (to check for lead in plumbing) and for properties with private well systems.
Should I test private well water in Stow?+
Yes. Unlike municipal tap water, private wells in Stow, MA are not monitored or regulated by the EPA or local utilities. Private well owners are responsible for testing their water annually for coliform bacteria and nitrates, and every 3 to 5 years for heavy metals (lead, arsenic) and volatile organic compounds.
How hard is the tap water in Stow?+
Tap water in Stow is classified as Hard with an estimated average hardness of 160 mg/L (9.4 GPG). Homeowners may want to consider a water softener to prevent scale buildup in appliances.
What is the water quality score for Stow?+
The average water quality score across 1 ZIP code in Stow, MA is 69/100. Scores are derived from EPA violation history, lead levels, enforcement actions, and infrastructure risk indicators. Individual ZIP codes may vary — search your specific ZIP above for a personalized report.
Does Stow have lead in its tap water?+
Lead risk ratings in Stow are relatively low based on EPA monitoring data. However, lead in home plumbing is a separate concern — if your home was built before 1986, individual tap testing is recommended.
Where does Stow's tap water come from?+
Tap water in Stow, MA primarily comes from ground water. Groundwater systems pump water from underground aquifers, which is naturally filtered through soil and rock but can still contain naturally occurring contaminants.

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