Hardness
Soft
41.6 PPM · 2.4 GPG
Local water dashboard
Official source aggregationWater quality in Bartlett, NH 03812
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Carroll County.
1 active health-based violation
- Primary matched system
- Lower Bartlett Water Pct
- Source water
- Groundwater + Surface water
- County
- Carroll County
- Profile updated
At a glance
What the current records say
EPA quarter 2026Q2
Compliance screen
Review needed
1 active health-based record
Lead 90th percentile
0.001 mg/L
7% of action level
Utility match
10 systems
Serves 3,850 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
41.6 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
41.6
mg/L as CaCO₃ equivalent
Grains per gallon
2.4
1 GPG ≈ 17.1 PPM
What this means at home
At 41.6 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
37
Nearest site
8 mi
Observation range
May 23, 2016–Jul 12, 2023
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: NH-CWW 9 (Well).USGS source documentation ↗
Regional context
Is 03812 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Bartlett median
42 PPM
About the same1 indexed ZIP readings · Range 41.6–41.6 PPM
New Hampshire median
58 PPM
16 PPM lower90 indexed ZIP readings · Range 16–102 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 pass5 fail
Lead (PB90)
0.001 mg/L
Reported Dec 31, 2024
Copper (CU90)
1.47 mg/L
Reported Dec 31, 2010
Numerical coverage
6 comparable results
Missing values remain blank; absence is not treated as a pass.
Lead (90th percentile)
Measured in mg/L
Local 0.001
EPA limit 0.015
Copper (90th percentile)
Measured in mg/L
Local 1.47
EPA limit 1.3
Fluoride
Measured in MG/L
Local 5
EPA limit 4
Beryllium, Total
Measured in MG/L
Local 0.005
EPA limit 0.004
Total Haloacetic Acids (HAA5)
Measured in MG/L
Local 0.061
EPA limit 0.06
Gross Alpha, Excl. Radon and U
Measured in PCI/L
Local 16
EPA limit 15
Share of EPA benchmark
100% line = listed limit
2026Q2
- All records
- 46
- Health-based
- 31
- Active health-based
- 1
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| FluorideHealth-basedReported 5 MG/L · MCL 4 | NH0162100 | Resolved | Jul 1, 2025through Sep 5, 2025 |
| Beryllium, TotalHealth-basedReported 0.005 MG/L · MCL 0.004 | NH0162350 | Archived | Apr 1, 2025through Jun 30, 2025 |
| Beryllium, TotalHealth-basedReported 0.005 MG/L · MCL 0.004 | NH0162350 | Archived | Jan 1, 2025through Mar 31, 2025 |
| Beryllium, TotalHealth-basedReported 0.011 MG/L · MCL 0.004 | NH0162130 | Resolved | Jan 1, 2025through Mar 31, 2025 |
| Lead and Copper Rule | NH0162270 | Resolved | Oct 1, 2024through Oct 10, 2024 |
| Beryllium, TotalHealth-basedReported 0.012 MG/L · MCL 0.004 | NH0162130 | Resolved | Oct 1, 2024through Dec 31, 2024 |
| Public Notice | NH0162130 | Resolved | Jul 5, 2024through Aug 16, 2024 |
| Beryllium, TotalHealth-basedReported 0.012 MG/L · MCL 0.004 | NH0162130 | Resolved | Jul 1, 2024through Sep 30, 2024 |
| FluorideHealth-basedReported 4.53 MG/L · MCL 4 | NH0162100 | Resolved | Jul 1, 2024through Jan 30, 2025 |
| Public Notice | NH0161010 | Unaddressed | Jun 2, 2024 |
| Public Notice | NH0162130 | Resolved | Apr 5, 2024through Aug 16, 2024 |
| Total Haloacetic Acids (HAA5)Health-basedReported 0.061 MG/L · MCL 0.06 | NH0161010 | Resolved | Apr 1, 2024through Jun 30, 2024 |
| Beryllium, TotalHealth-basedReported 0.012 MG/L · MCL 0.004 | NH0162130 | Resolved | Apr 1, 2024through Jun 30, 2024 |
| Gross Alpha, Excl. Radon and UHealth-basedReported 16 PCI/L · MCL 15 | NH0162310 | Resolved | Apr 1, 2024through Jun 30, 2024 |
| Public Notice | NH0161010 | Unaddressed | Feb 28, 2024 |
| Public Notice | NH0162210 | Resolved | Feb 27, 2024through May 21, 2024 |
| Public Notice | NH0162310 | Resolved | Feb 6, 2024through Feb 13, 2024 |
| Total Haloacetic Acids (HAA5)Health-basedReported 0.063 MG/L · MCL 0.06 | NH0161010 | Resolved | Jan 1, 2024through Mar 31, 2024 |
| Groundwater RuleHealth-based | NH0161010 | Resolved | Jan 1, 2024through Jan 22, 2024 |
| Beryllium, TotalHealth-basedReported 0.013 MG/L · MCL 0.004 | NH0162130 | Resolved | Jan 1, 2024through Mar 31, 2024 |
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 Bartlett ZIP 03812 using 41.6 PPM nearby hardness and 6 reported measurement benchmarks.
Drinking water protection
Under-Sink Reverse Osmosis System
Copper (90th percentile), Fluoride, Beryllium, Total, Total Haloacetic Acids (HAA5), Gross Alpha, Excl. Radon and U have 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 filtrationAffiliate 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 Bartlett
Is tap water safe in Bartlett?+
EPA ECHO reports 1 active health-based violation among the associated community water systems. Review the affected utility's current notice and Consumer Confidence Report.
How hard is the water?+
Nearby USGS observations produce an estimate of 41.6 PPM, or 2.4 grains per gallon, classified as soft. 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.