Hardness
Very Hard
277 PPM · 16.2 GPG
Local water dashboard
Official source aggregationWater quality in Laredo, TX 78043
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Webb County.
No active health-based violation reported
- Primary matched system
- City Of Laredo
- Source water
- Surface water
- County
- Webb 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
0.0014 mg/L
9% of action level
Utility match
1 system
Serves 260,046 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
277 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
277
mg/L as CaCO₃ equivalent
Grains per gallon
16.2
1 GPG ≈ 17.1 PPM
What this means at home
At 277 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
10
Nearest site
48.2 mi
Observation range
Jan 11, 2016–Feb 16, 2016
Estimate confidence
Low
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: HZ-77-45-9xx (Well).USGS source documentation ↗
Regional context
Is 78043 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Laredo median
277 PPM
About the same5 indexed ZIP readings · Range 171–421 PPM
Texas median
111 PPM
166 PPM higher1019 indexed ZIP readings · Range 5.4–500.5 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 pass
Lead (PB90)
0.0014 mg/L
Reported Dec 31, 2024
Copper (CU90)
Not available
No numerical 90th-percentile result
Numerical coverage
1 comparable result
Missing values remain blank; absence is not treated as a pass.
Lead (90th percentile)
Measured in mg/L
Local 0.0014
EPA limit 0.015
Share of EPA benchmark
100% line = listed limit
2026Q2
- All records
- 10
- Health-based
- 3
- Active health-based
- 0
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Revised Total Coliform RuleHealth-based | TX2400001 | Archived | May 1, 2026through May 31, 2026 |
| Public Notice | TX2400001 | Resolved | May 15, 2025through Jul 22, 2025 |
| LEAD AND COPPER RULE REVISIONS | TX2400001 | Resolved | Oct 17, 2024through Apr 22, 2025 |
| LEAD AND COPPER RULE REVISIONSHealth-based | TX2400001 | Resolved | Oct 17, 2024through Apr 22, 2025 |
| Revised Total Coliform RuleHealth-based | TX2400001 | Resolved | Oct 1, 2024through Oct 31, 2024 |
| Interim Enhanced Surface Water Treatment Rule | TX2400001 | Resolved | Sep 1, 2024through Sep 30, 2024 |
| Interim Enhanced Surface Water Treatment Rule | TX2400001 | Resolved | Sep 1, 2024through Sep 30, 2024 |
| Interim Enhanced Surface Water Treatment Rule | TX2400001 | Resolved | Aug 1, 2024through Aug 31, 2024 |
| Interim Enhanced Surface Water Treatment Rule | TX2400001 | Resolved | Aug 1, 2024through Aug 31, 2024 |
| Public Notice | TX2400001 | Resolved | Aug 1, 2021through Nov 5, 2021 |
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 Laredo ZIP 78043 using 277 PPM nearby hardness and 1 reported measurement benchmarks.
Scale protection
High-Capacity Whole House Water Softener
277 PPM is 2× the high-hardness trigger used by this matcher.
Designed to reduce scale on fixtures, water heaters, glassware, and plumbing throughout the home.
Compare whole-house systemsAffiliate 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.
Nearby indexed reports
Compare ZIPs in Laredo
Estimates can differ across a city because monitoring locations and associated systems differ.
Frequently asked
Water questions for Laredo
Is tap water safe in Laredo?+
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 277 PPM, or 16.2 grains per gallon, classified as very hard. This is not a household tap measurement.
Do I need a water softener?+
At 277 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.