Hardness
Soft
40 PPM · 2.3 GPG
Local water dashboard
Official source aggregationWater quality in Shreveport, LA 71104
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Caddo Parish.
1 reported benchmark flag
- Primary matched system
- City Of Shreveport Water System
- Source water
- Surface water
- County
- Caddo Parish
- 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
9.2e-4 mg/L
6% of action level
Utility match
1 system
Serves 192,378 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
40 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
40
mg/L as CaCO₃ equivalent
Grains per gallon
2.3
1 GPG ≈ 17.1 PPM
What this means at home
At 40 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
16
Nearest site
4.8 mi
Observation range
Feb 25, 2016–Aug 4, 2025
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: Macks Bayou at Bossier City, LA (Stream).USGS source documentation ↗
Regional context
Is 71104 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Shreveport median
42 PPM
About the same13 indexed ZIP readings · Range 32.7–43.6 PPM
Louisiana median
90 PPM
50 PPM lower102 indexed ZIP readings · Range 4.8–314 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 pass1 fail
Lead (PB90)
9.2e-4 mg/L
Reported Dec 31, 2025
Copper (CU90)
Not available
No numerical 90th-percentile result
Numerical coverage
2 comparable results
Missing values remain blank; absence is not treated as a pass.
Lead (90th percentile)
Measured in mg/L
Local 9.2e-4
EPA limit 0.015
TTHM
Measured in MG/L
Local 0.14
EPA limit 0.08
Share of EPA benchmark
100% line = listed limit
2026Q2
- All records
- 22
- Health-based
- 21
- Active health-based
- 0
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Interim Enhanced Surface Water Treatment RuleHealth-based | LA1017031 | Resolved | Jan 1, 2026through Jan 31, 2026 |
| TTHMHealth-basedReported 0.14 MG/L · MCL 0.08 | LA1017031 | Archived | Jan 1, 2026through Mar 31, 2026 |
| TTHMHealth-basedReported 0.157 MG/L · MCL 0.08 | LA1017031 | Archived | Oct 1, 2025through Dec 31, 2025 |
| TTHMHealth-basedReported 0.143 MG/L · MCL 0.08 | LA1017031 | Archived | Jul 1, 2025through Sep 30, 2025 |
| TTHMHealth-basedReported 0.144 MG/L · MCL 0.08 | LA1017031 | Archived | Apr 1, 2025through Jun 30, 2025 |
| Surface Water Treatment RuleHealth-based | LA1017031 | Resolved | Mar 1, 2025through Mar 31, 2025 |
| Surface Water Treatment RuleHealth-based | LA1017031 | Resolved | Feb 1, 2025through Feb 28, 2025 |
| Surface Water Treatment RuleHealth-based | LA1017031 | Resolved | Jan 1, 2025through Jan 31, 2025 |
| Surface Water Treatment RuleHealth-based | LA1017031 | Resolved | Dec 1, 2024through Dec 31, 2024 |
| Surface Water Treatment RuleHealth-based | LA1017031 | Resolved | Oct 1, 2024through Oct 31, 2024 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | LA1017031 | Resolved | Jun 1, 2024through Jun 30, 2024 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | LA1017031 | Resolved | Jun 1, 2024through Jun 30, 2024 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | LA1017031 | Resolved | May 1, 2024through May 31, 2024 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | LA1017031 | Resolved | Jan 1, 2024through Jan 31, 2024 |
| TTHMHealth-basedReported 0.085 MG/L · MCL 0.08 | LA1017031 | Resolved | Oct 1, 2023through Dec 31, 2023 |
| TTHMHealth-basedReported 0.094 MG/L · MCL 0.08 | LA1017031 | Resolved | Jul 1, 2023through Sep 30, 2023 |
| TTHM | LA1017031 | Resolved | May 1, 2023through Sep 20, 2023 |
| TTHMHealth-basedReported 0.095 MG/L · MCL 0.08 | LA1017031 | Resolved | Apr 1, 2023through Jun 30, 2023 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | LA1017031 | Resolved | Dec 1, 2022through Dec 31, 2022 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | LA1017031 | Resolved | Dec 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
Your personalized water action plan
Matched to Shreveport ZIP 71104 using 40 PPM nearby hardness and 2 reported measurement benchmarks.
Drinking water protection
Under-Sink Reverse Osmosis System
TTHM has 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.
Nearby indexed reports
Compare ZIPs in Shreveport
Estimates can differ across a city because monitoring locations and associated systems differ.
Frequently asked
Water questions for Shreveport
Is tap water safe in Shreveport?+
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 40 PPM, or 2.3 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.