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Local water dashboard

Official source aggregation

Water quality in Marshfield, MA 02050

A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Plymouth County.

1 reported benchmark flag
Primary matched system
Marshfield Water Department
Source water
Groundwater
County
Plymouth County
Profile updated

At a glance

What the current records say

Hardness

Moderately Hard

64.1 PPM · 3.7 GPG

Compliance screen

No active flag

0 active health-based records

Lead 90th percentile

0.004 mg/L

27% of action level

Utility match

1 system

Serves 34,000 people system-wide

Hardness meter

How hard is the water?

Moderately Hard

Estimated local hardness

USGS hardness classification scale

64.1 PPM

Soft
0–59Moderate
60–120Hard
121–180Very hard
181+

Parts per million

64.1

mg/L as CaCO₃ equivalent

Grains per gallon

3.7

1 GPG ≈ 17.1 PPM

What this means at home

At 64.1 PPM, mineral scale can build up on fixtures and heating elements, reduce soap lather, and leave visible spotting. Hardness is primarily an aesthetic and appliance concern—not itself a tap-water safety rating.

USGS sites used

149

Nearest site

1.8 mi

Observation range

Jan 13, 2016–Sep 25, 2023

Estimate confidence

Moderate

Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: MA-MHW 296 MARSHFIELD, MA (Well).USGS source documentation ↗

Regional context

Is 02050 typical?

These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.

Marshfield median

64 PPM

About the same

1 indexed ZIP readings · Range 64.1–64.1 PPM

Massachusetts median

49 PPM

15 PPM higher

328 indexed ZIP readings · Range 24.3–128 PPM

EPA benchmark screen

Contaminant snapshot

Available numerical results from associated SDWIS community water systems, compared with the applicable action level or federal MCL. Federal measured-value coverage is incomplete.

1 pass1 fail

Lead (PB90)

0.004 mg/L

Reported Dec 31, 2024

Copper (CU90)

1.35 mg/L

Reported Dec 31, 2008

Numerical coverage

2 comparable results

Missing values remain blank; absence is not treated as a pass.

Lead (90th percentile)

Measured in mg/L

Pass

Local 0.004

EPA limit 0.015

Local level is 27% of the listed EPA limit.

Copper (90th percentile)

Measured in mg/L

Fail

Local 1.35

EPA limit 1.3

Local level is 104% of the listed EPA limit.

Share of EPA benchmark

100% line = listed limit

EPA SDWIS compliance

Reported violation history

Open EPA source documentation ↗
2026Q2
All records
6
Health-based
0
Active health-based
0
Contaminant or ruleSystemStatusPeriod
Consumer Confidence RuleMA4171000UnaddressedJul 2, 2025
Consumer Confidence RuleMA4171000ResolvedJul 1, 2022through Aug 15, 2022
Revised Total Coliform RuleMA4171000ResolvedApr 11, 2022through Jan 23, 2025
Revised Total Coliform RuleMA4171000ResolvedMar 11, 2022through Jan 23, 2025
Revised Total Coliform RuleMA4171000ArchivedMar 1, 2022through Mar 31, 2022
Revised Total Coliform RuleMA4171000ArchivedFeb 1, 2022through Feb 28, 2022

No reported violation does not prove that every contaminant was tested or absent; SDWIS measured values are incomplete and lag state records.

Solutions matcher

Your personalized water action plan

Matched to Marshfield ZIP 02050 using 64.1 PPM nearby hardness and 2 reported measurement benchmarks.

1 match

Drinking water protection

Under-Sink Reverse Osmosis System

Copper (90th percentile) has a measured benchmark flag or active health-based SDWIS record in this profile.

A certified multi-stage RO system targets a broader range of dissolved contaminants at the kitchen tap.

Explore under-sink filtration

Affiliate disclosure: we may earn a commission from qualifying purchases, at no added cost to you. Product matching is educational and does not replace certified water testing.

Frequently asked

Water questions for Marshfield

Is tap water safe in Marshfield?+

EPA ECHO shows no active health-based violation for the associated systems in this reporting snapshot. This does not prove every contaminant is absent; federal records can lag and household plumbing can change tap conditions.

How hard is the water?+

Nearby USGS observations produce an estimate of 64.1 PPM, or 3.7 grains per gallon, classified as moderately hard. This is not a household tap measurement.

Do I need a water softener?+

There is no high-hardness trigger in this profile. Confirm with a tap test before buying equipment.