Hardness
Soft
11.8 PPM · 0.7 GPG
Local water dashboard
Official source aggregationWater quality in Lexington, SC 29072
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Lexington County.
2 reported benchmark flags
- Primary matched system
- Joint Municipal Wsc (sc3220003)
- Source water
- Surface water + Groundwater
- County
- Lexington 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
0.004 mg/L
27% of action level
Utility match
10 systems
Serves 47,838 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
11.8 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
11.8
mg/L as CaCO₃ equivalent
Grains per gallon
0.7
1 GPG ≈ 17.1 PPM
What this means at home
At 11.8 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
18
Nearest site
42.6 mi
Observation range
Jan 19, 2016–Dec 2, 2024
Estimate confidence
Low
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: SOUTH FORK EDISTO RIVER NEAR DENMARK, SC (Stream).USGS source documentation ↗
Regional context
Is 29072 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Lexington median
12 PPM
About the same1 indexed ZIP readings · Range 11.8–11.8 PPM
South Carolina median
19 PPM
7 PPM lower236 indexed ZIP readings · Range 4.2–106 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 pass2 fail
Lead (PB90)
0.004 mg/L
Reported Dec 31, 2025
Copper (CU90)
2.55 mg/L
Reported Jun 30, 2023
Numerical coverage
3 comparable results
Missing values remain blank; absence is not treated as a pass.
Lead (90th percentile)
Measured in mg/L
Local 0.004
EPA limit 0.015
Copper (90th percentile)
Measured in mg/L
Local 2.55
EPA limit 1.3
Combined Radium (-226 and -228)
Measured in PCI/L
Local 6
EPA limit 5
Share of EPA benchmark
100% line = listed limit
2026Q2
- All records
- 50
- Health-based
- 8
- Active health-based
- 0
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Revised Total Coliform Rule | SC3260138 | Unaddressed | Mar 11, 2026 |
| Revised Total Coliform Rule | SC3260189 | Resolved | Feb 1, 2026through Feb 28, 2026 |
| Revised Total Coliform Rule | SC3260138 | Unaddressed | Dec 11, 2025 |
| Revised Total Coliform Rule | SC3260138 | Unaddressed | Oct 11, 2025 |
| Lead and Copper Rule | SC3260164 | Unaddressed | Oct 1, 2025 |
| Lead and Copper Rule | SC3260189 | Unaddressed | Oct 1, 2025 |
| Consumer Confidence Rule | SC3260170 | Unaddressed | Oct 1, 2025 |
| Lead and Copper Rule | SC3260140 | Unaddressed | Oct 1, 2025 |
| Consumer Confidence Rule | SC3260140 | Unaddressed | Oct 1, 2025 |
| Revised Total Coliform Rule | SC3260187 | Resolved | Sep 1, 2025through Sep 30, 2025 |
| Revised Total Coliform Rule | SC3260170 | Resolved | Jun 11, 2025through Jun 25, 2025 |
| Revised Total Coliform Rule | SC3260170 | Resolved | May 11, 2025through Jun 25, 2025 |
| LEAD AND COPPER RULE REVISIONS | SC3270301 | Resolved | Oct 17, 2024through Jul 7, 2025 |
| LEAD AND COPPER RULE REVISIONSHealth-based | SC3270301 | Resolved | Oct 17, 2024through Jul 7, 2025 |
| LEAD AND COPPER RULE REVISIONSHealth-based | SC3260138 | Resolved | Oct 17, 2024through Jan 7, 2025 |
| LEAD AND COPPER RULE REVISIONS | SC3260138 | Resolved | Oct 17, 2024through Jan 7, 2025 |
| LEAD AND COPPER RULE REVISIONSHealth-based | SC3260140 | Resolved | Oct 17, 2024through Dec 13, 2024 |
| LEAD AND COPPER RULE REVISIONS | SC3260140 | Resolved | Oct 17, 2024through Dec 13, 2024 |
| LEAD AND COPPER RULE REVISIONS | SC3260187 | Resolved | Oct 17, 2024through Nov 26, 2024 |
| LEAD AND COPPER RULE REVISIONSHealth-based | SC3260187 | Resolved | Oct 17, 2024through Nov 26, 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 Lexington ZIP 29072 using 11.8 PPM nearby hardness and 3 reported measurement benchmarks.
Drinking water protection
Under-Sink Reverse Osmosis System
Copper (90th percentile), Combined Radium (-226 and -228) 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 Lexington
Is tap water safe in Lexington?+
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 11.8 PPM, or 0.7 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.