Hardness
Moderately Hard
117 PPM · 6.8 GPG
Local water dashboard
Official source aggregationWater quality in Great Barrington, MA 01230
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Berkshire County.
1 reported benchmark flag
- Primary matched system
- Great Barrington Fire Dist
- Source water
- Groundwater + Surface water
- County
- Berkshire County
- Profile updated
At a glance
What the current records say
EPA quarter 2026Q2
Compliance screen
No active flag
0 active health-based records
Lead 90th percentile
0.0026 mg/L
17% of action level
Utility match
3 systems
Serves 4,380 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
117 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
117
mg/L as CaCO₃ equivalent
Grains per gallon
6.8
1 GPG ≈ 17.1 PPM
What this means at home
At 117 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
172
Nearest site
3.6 mi
Observation range
May 17, 2016–Aug 2, 2023
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: MA-SJW 81 (Well).USGS source documentation ↗
Regional context
Is 01230 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Great Barrington median
117 PPM
About the same1 indexed ZIP readings · Range 117–117 PPM
Massachusetts median
49 PPM
68 PPM higher328 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)
0.0026 mg/L
Reported Dec 31, 2025
Copper (CU90)
1.55 mg/L
Reported Jun 30, 2018
Numerical coverage
2 comparable results
Missing values remain blank; absence is not treated as a pass.
Lead (90th percentile)
Measured in mg/L
Local 0.0026
EPA limit 0.015
Copper (90th percentile)
Measured in mg/L
Local 1.55
EPA limit 1.3
Share of EPA benchmark
100% line = listed limit
2026Q2
- All records
- 12
- Health-based
- 2
- Active health-based
- 0
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Public Notice | MA1113003 | Resolved | Oct 1, 2021through Jan 21, 2022 |
| Total Haloacetic Acids (HAA5)Health-based | MA1113003 | Archived | Oct 1, 2021through Dec 31, 2021 |
| Total Haloacetic Acids (HAA5)Health-based | MA1113003 | Archived | Jul 1, 2021through Sep 30, 2021 |
| Total Haloacetic Acids (HAA5) | MA1113003 | Resolved | Jul 1, 2021through Sep 30, 2021 |
| Lead and Copper Rule | MA1113003 | Addressed | Aug 7, 2017 |
| Lead and Copper Rule | MA1113003 | Addressed | Jul 10, 2017 |
| Long Term 2 Enhanced Surface Water Treatment Rule | MA1113003 | Addressed | Apr 1, 2015 |
| Groundwater Rule | MA1113017 | Addressed | Feb 1, 2015 |
| Groundwater Rule | MA1113017 | Addressed | Sep 10, 2014 |
| Lead and Copper Rule | MA1113003 | Addressed | Jan 1, 2013 |
| Lead and Copper Rule | MA1113003 | Addressed | Jan 1, 2013 |
| Lead and Copper Rule | MA1113003 | Addressed | Jan 1, 2013 |
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 Great Barrington ZIP 01230 using 117 PPM nearby hardness and 2 reported measurement benchmarks.
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.
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Frequently asked
Water questions for Great Barrington
Is tap water safe in Great Barrington?+
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 117 PPM, or 6.8 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.