Hardness
Soft
53.7 PPM · 3.1 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 Tulare County.
At a glance
EPA quarter 2026Q2
Hardness
Soft
53.7 PPM · 3.1 GPG
Compliance screen
No active flag
0 active health-based records
Lead 90th percentile
0 mg/L
0% of action level
Utility match
1 system
Serves 12,659 people system-wide
Hardness meter
Estimated local hardness
USGS hardness classification scale
53.7 PPM
Parts per million
53.7
mg/L as CaCO₃ equivalent
Grains per gallon
3.1
1 GPG ≈ 17.1 PPM
What this means at home
At 53.7 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
5
Nearest site
35.4 mi
Observation range
Jan 20, 2016–Mar 11, 2026
Estimate confidence
Low
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: MARBLE FORK KAWEAH R AB HORSE C NR LODGEPOLE CA (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.
Lindsay median
54 PPM
About the same1 indexed ZIP readings · Range 53.7–53.7 PPM
California median
189 PPM
135 PPM lower678 indexed ZIP readings · Range 3.3–728.5 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, 2024
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 0.0618
EPA limit 0.06
Measured in MG/L
Local 0.0902
EPA limit 0.08
100% line = listed limit
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Total Haloacetic Acids (HAA5)Health-basedReported 0.0618 MG/L · MCL 0.06 | CA5410006 | Archived | Jan 1, 2026through Mar 31, 2026 |
| TTHMHealth-basedReported 0.0902 MG/L · MCL 0.08 | CA5410006 | Archived | Jan 1, 2026through Mar 31, 2026 |
| TTHMHealth-basedReported 0.0865 MG/L · MCL 0.08 | CA5410006 | Archived | Jan 1, 2026through Mar 31, 2026 |
| TTHMHealth-basedReported 0.084 MG/L · MCL 0.08 | CA5410006 | Archived | Jan 1, 2026through Mar 31, 2026 |
| TTHMHealth-basedReported 0.082 MG/L · MCL 0.08 | CA5410006 | Archived | Oct 1, 2025through Dec 31, 2025 |
| TTHMHealth-basedReported 0.0802 MG/L · MCL 0.08 | CA5410006 | Archived | Oct 1, 2025through Dec 31, 2025 |
| TTHMHealth-basedReported 0.0988 MG/L · MCL 0.08 | CA5410006 | Archived | Jul 1, 2025through Sep 30, 2025 |
| Total Haloacetic Acids (HAA5)Health-basedReported 0.0655 MG/L · MCL 0.06 | CA5410006 | Archived | Jul 1, 2025through Sep 30, 2025 |
| TTHMHealth-basedReported 0.0838 MG/L · MCL 0.08 | CA5410006 | Archived | Jul 1, 2025through Sep 30, 2025 |
| Total Haloacetic Acids (HAA5)Health-basedReported 0.0692 MG/L · MCL 0.06 | CA5410006 | Archived | Apr 1, 2025through Jun 30, 2025 |
| Total Haloacetic Acids (HAA5)Health-basedReported 0.0665 MG/L · MCL 0.06 | CA5410006 | Archived | Apr 1, 2025through Jun 30, 2025 |
| TTHMHealth-basedReported 0.0945 MG/L · MCL 0.08 | CA5410006 | Archived | Apr 1, 2025through Jun 30, 2025 |
| Total Haloacetic Acids (HAA5)Health-basedReported 0.0638 MG/L · MCL 0.06 | CA5410006 | Archived | Jan 1, 2025through Mar 31, 2025 |
| TTHMHealth-basedReported 0.0895 MG/L · MCL 0.08 | CA5410006 | Archived | Jan 1, 2025through Mar 31, 2025 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | CA5410006 | Resolved | Jun 1, 2023through Jun 30, 2023 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | CA5410006 | Resolved | May 1, 2023through May 31, 2023 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | CA5410006 | Resolved | Apr 1, 2023through Apr 30, 2023 |
| TTHMHealth-basedReported 0.097 MG/L · MCL 0.08 | CA5410006 | Archived | Oct 1, 2022through Dec 31, 2022 |
| Total Haloacetic Acids (HAA5)Health-basedReported 0.0628 MG/L · MCL 0.06 | CA5410006 | Archived | Oct 1, 2022through Dec 31, 2022 |
| TTHMHealth-basedReported 0.082 MG/L · MCL 0.08 | CA5410006 | Archived | Oct 1, 2022through Dec 31, 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 Lindsay ZIP 93247 using 53.7 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.
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
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 53.7 PPM, or 3.1 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.