Hardness
Soft
39.3 PPM · 2.3 GPG
Local water dashboard
Official source aggregationA source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Montgomery County.
At a glance
EPA quarter 2026Q2
Hardness
Soft
39.3 PPM · 2.3 GPG
Compliance screen
No active flag
0 active health-based records
Lead 90th percentile
0 mg/L
0% of action level
Utility match
3 systems
Serves 3,591 people system-wide
Hardness meter
Estimated local hardness
USGS hardness classification scale
39.3 PPM
Parts per million
39.3
mg/L as CaCO₃ equivalent
Grains per gallon
2.3
1 GPG ≈ 17.1 PPM
What this means at home
At 39.3 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
27
Nearest site
52 mi
Observation range
Jan 15, 2016–Jun 9, 2026
Estimate confidence
Low
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: HAW RIVER NEAR BYNUM, NC (Stream).USGS source documentation ↗
Regional context
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Troy median
39 PPM
About the same1 indexed ZIP readings · Range 39.3–39.3 PPM
North Carolina median
41 PPM
About the same519 indexed ZIP readings · Range 4.7–267.5 PPM
EPA benchmark screen
Available numerical results from associated SDWIS community water systems, compared with the applicable action level or federal MCL. Federal measured-value coverage is incomplete.
Lead (PB90)
0 mg/L
Reported Dec 31, 2025
Copper (CU90)
Not available
No numerical 90th-percentile result
Numerical coverage
3 comparable results
Missing values remain blank; absence is not treated as a pass.
Measured in mg/L
Local 0
EPA limit 0.015
Measured in MG/L
Local 0.065
EPA limit 0.06
Measured in MG/L
Local 0.084
EPA limit 0.08
100% line = listed limit
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Public Notice | NC0362020 | Resolved | Sep 29, 2025through Sep 29, 2025 |
| Total Haloacetic Acids (HAA5) | NC0362020 | Addressed | Aug 15, 2025 |
| Total Haloacetic Acids (HAA5)Health-basedReported 0.065 MG/L · MCL 0.06 | NC0362020 | Resolved | Jul 1, 2025through Sep 30, 2025 |
| Revised Total Coliform Rule | NC0362020 | Resolved | Mar 12, 2025through Mar 12, 2025 |
| Lead and Copper Rule | NC0362020 | Resolved | Jan 1, 2025through Sep 4, 2025 |
| Total Haloacetic Acids (HAA5)Health-basedReported 0.063 MG/L · MCL 0.06 | NC0362107 | Resolved | Jan 1, 2025through Mar 31, 2025 |
| TTHMHealth-basedReported 0.084 MG/L · MCL 0.08 | NC0362107 | Resolved | Jan 1, 2025through Mar 31, 2025 |
| TTHMHealth-basedReported 0.082 MG/L · MCL 0.08 | NC0362107 | Resolved | Oct 1, 2024through Dec 31, 2024 |
| Total Haloacetic Acids (HAA5)Health-basedReported 0.068 MG/L · MCL 0.06 | NC0362107 | Resolved | Oct 1, 2024through Dec 31, 2024 |
| TTHMHealth-basedReported 0.083 MG/L · MCL 0.08 | NC0362106 | Resolved | Oct 1, 2024through Dec 31, 2024 |
| Total Haloacetic Acids (HAA5)Health-basedReported 0.063 MG/L · MCL 0.06 | NC0362106 | Resolved | Oct 1, 2024through Dec 31, 2024 |
| Total Haloacetic Acids (HAA5)Health-basedReported 0.063 MG/L · MCL 0.06 | NC0362107 | Resolved | Jul 1, 2024through Sep 30, 2024 |
| Lead and Copper Rule | NC0362020 | Resolved | Jan 1, 2022through Apr 5, 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
Matched to Troy ZIP 27371 using 39.3 PPM nearby hardness and 3 reported measurement benchmarks.
Drinking water protection
Total Haloacetic Acids (HAA5), TTHM 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.
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Frequently asked
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.
Nearby USGS observations produce an estimate of 39.3 PPM, or 2.3 grains per gallon, classified as soft. This is not a household tap measurement.
There is no high-hardness trigger in this profile. Confirm with a tap test before buying equipment.