Utility-reported hardness
Unavailable
Ask your provider or test your tap
Local water dashboard
Official source aggregationWater quality in Franklin, LA 70538
Regional hardness evidence, possible serving systems, EPA compliance history, and the measurements that are—and are not—available for St. Mary Parish.
1 active health-based record(s) across possible systems
- Largest possible serving system
- City Of Franklin Water Supply
- Source water
- Surface water
- County
- St. Mary Parish
- Profile updated
Your tap water
What does the utility report?
Match the utility name to your water bill. These results describe the utility’s water, not a test at your home. A ZIP can include several water systems.
Utility hardness unavailable in this index
Nearby river or groundwater samples cannot tell us the hardness coming out of your tap. Ask your water provider for total hardness as CaCO₃, or test it at home.
Find an official utility report →At a glance
What the current records say
EPA quarter 2026Q2
All possible systems
Review needed
1 active health-based record
Measurements by utility
Each result belongs to a specific system.
Utility match
1 system
Serves 8,325 people system-wide
Match the name on your water bill
Your utility’s measurements and compliance records
These are possible serving systems. A record for one system does not apply to every home in this ZIP. Confirm your provider before interpreting a measurement or notice. Federal records can lag current utility notices.
EPA snapshot: 2026Q2. Historical window begins Jan 1, 2021.
City Of Franklin Water Supply
LA1101003 · Surface water · 8,325 people served system-wide
A municipal system, in-state city, and served county all agree with this Census ZCTA.
1 reported active health-based record(s) for this system
Find this utility’s official report →Measurements (4)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
Lead (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 0.002 mg/L
- Action level
- 0.015 mg/L
13% of the listed benchmark
Monitoring period: Jan 1, 2022 to Dec 31, 2024
Copper (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 1.4 mg/L
- Action level
- 1.3 mg/L
108% of the listed benchmark
Monitoring period: Jan 1, 2015 to Dec 31, 2017
Total Haloacetic Acids (HAA5)
EPA SDWIS reported health-based violation
- Reported level
- 0.067 MG/L
- Maximum contaminant level
- 0.06 MG/L
112% of the listed benchmark
Monitoring period: Oct 1, 2024 to Dec 31, 2024
TTHM
EPA SDWIS reported health-based violation
- Reported level
- 0.081 MG/L
- Maximum contaminant level
- 0.08 MG/L
101% of the listed benchmark
Monitoring period: Apr 1, 2024 to Jun 30, 2024
Violation history (49)
| Rule | Status | Period |
|---|---|---|
| Public Notice | Resolved | Jun 21, 2025 to Jul 1, 2025 |
| Public Notice | Resolved | May 2, 2025 to May 7, 2025 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | Archived | Apr 1, 2025 to Apr 30, 2025 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | Resolved | Mar 1, 2025 to Mar 31, 2025 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | Resolved | Mar 1, 2025 to Mar 31, 2025 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | Resolved | Feb 1, 2025 to Feb 28, 2025 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | Resolved | Feb 1, 2025 to Feb 28, 2025 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | Resolved | Jan 1, 2025 to Jan 31, 2025 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | Resolved | Jan 1, 2025 to Jan 31, 2025 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | Archived | Dec 1, 2024 to Dec 31, 2024 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | Archived | Nov 1, 2024 to Nov 30, 2024 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | Archived | Oct 1, 2024 to Oct 31, 2024 |
| Total Haloacetic Acids (HAA5)Health-based | Resolved | Oct 1, 2024 to Dec 31, 2024 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | Archived | Oct 1, 2024 to Oct 31, 2024 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | Archived | Sep 1, 2024 to Sep 30, 2024 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | Archived | Sep 1, 2024 to Sep 30, 2024 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | Archived | Aug 1, 2024 to Aug 31, 2024 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | Archived | Aug 1, 2024 to Aug 31, 2024 |
| Public Notice | Unaddressed | Jul 11, 2024 |
| Interim Enhanced Surface Water Treatment Rule | Archived | Jul 1, 2024 to Jul 31, 2024 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | Archived | Jul 1, 2024 to Jul 31, 2024 |
| Total Haloacetic Acids (HAA5)Health-based | Resolved | Jul 1, 2024 to Sep 30, 2024 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | Archived | Jun 1, 2024 to Jun 30, 2024 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | Archived | May 1, 2024 to May 31, 2024 |
| Interim Enhanced Surface Water Treatment Rule | Archived | May 1, 2024 to May 31, 2024 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | Archived | May 1, 2024 to May 31, 2024 |
| Total Haloacetic Acids (HAA5)Health-based | Resolved | Apr 1, 2024 to Jun 30, 2024 |
| Interim Enhanced Surface Water Treatment Rule | Archived | Apr 1, 2024 to Apr 30, 2024 |
| TTHMHealth-based | Resolved | Apr 1, 2024 to Jun 30, 2024 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | Archived | Apr 1, 2024 to Apr 30, 2024 |
| Public Notice | Unaddressed | Mar 27, 2024 |
| Interim Enhanced Surface Water Treatment Rule | Archived | Mar 1, 2024 to Mar 31, 2024 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | Archived | Mar 1, 2024 to Mar 31, 2024 |
| Interim Enhanced Surface Water Treatment Rule | Archived | Feb 1, 2024 to Feb 29, 2024 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | Archived | Feb 1, 2024 to Feb 29, 2024 |
| TTHMHealth-based | Resolved | Jan 1, 2024 to Mar 31, 2024 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | Archived | Jan 1, 2024 to Jan 31, 2024 |
| Interim Enhanced Surface Water Treatment Rule | Archived | Jan 1, 2024 to Jan 31, 2024 |
| Total Haloacetic Acids (HAA5)Health-based | Resolved | Jan 1, 2024 to Mar 31, 2024 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | Resolved | Oct 1, 2023 to Oct 31, 2023 |
| Surface Water Treatment Rule | Resolved | Jul 1, 2023 to Jul 31, 2023 |
| Long Term 2 Enhanced Surface Water Treatment RuleHealth-based | Unaddressed | Jul 1, 2023 |
| Public Notice | Unaddressed | Mar 4, 2023 |
| Interim Enhanced Surface Water Treatment Rule | Archived | Oct 1, 2022 to Oct 31, 2022 |
| Surface Water Treatment Rule | Archived | Oct 1, 2022 to Oct 31, 2022 |
| Surface Water Treatment Rule | Archived | Sep 1, 2022 to Sep 30, 2022 |
| Interim Enhanced Surface Water Treatment Rule | Archived | Sep 1, 2022 to Sep 30, 2022 |
| Lead and Copper Rule | Resolved | Oct 27, 2021 to Jun 30, 2021 |
| Consumer Confidence Rule | Resolved | Jul 1, 2021 to Jun 15, 2022 |
Hardness meter
What does nearby environmental evidence show?
138.5
PPM as CaCO₃
Hard
PPM
138.5
GPG
8.1
Regional environmental evidence
USGS hardness classification scale
138.5 PPM
Soft
0–60Moderate
61–120Hard
121–180Very hard
181+
0–60Moderate
61–120Hard
121–180Very hard
181+
Parts per million
138.5
mg/L as CaCO₃ equivalent
Grains per gallon
8.1
1 GPG ≈ 17.1 PPM
How to use regional evidence
These samples describe nearby environmental water. They cannot establish whether your tap water is soft or hard. Use a utility result or a tap test for appliance settings and treatment sizing.
USGS sites used
2
Nearest site
10.2 mi
Observation range
Feb 14, 2017–Jun 2, 2026
Regional evidence confidence
Moderate
Median of the latest source-type-aligned hardness observation at each monitoring site within 25 miles. Nearest monitoring location: Wax Lake Outlet at Calumet, LA (Stream).USGS source documentation ↗Evidence tier: Regional environmental evidence. This value is not used as proof of the serving utility's treated-water hardness.
Regional context
Is 70538 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Franklin median
139 PPM
About the same1 indexed ZIP readings · Range 138.5–138.5 PPM
Louisiana median
98 PPM
41 PPM higher73 indexed ZIP readings · Range 5–411 PPM
Evidence-first next steps
Confirm the problem before choosing treatment
This profile can help you ask the right question. It cannot select equipment for a property without a current result from the serving utility or the tap.
Confirm the serving system
ZIP boundaries and utility service areas do not perfectly match. Verify the system on a water bill before relying on system-wide records.
Read the current utility report
An active health-based record is present. Follow the utility's current notice and public-health instructions.
Find an official utility report →Test for the decision you face
Use a tap hardness test before sizing a softener. For health concerns, use a certified laboratory and the correct sampling protocol.
Convert your hardness test result →Frequently asked
Water questions for Franklin
Is tap water safe in Franklin?+
EPA ECHO reports 1 active health-based violation among the associated community water systems. Review the affected utility's current notice and Consumer Confidence Report.
How hard is the water?+
Utility-reported hardness is unavailable in this index. Regional samples do not establish tap-water hardness. Ask your provider or test your tap.
Do I need a water softener?+
Confirm hardness at your tap and consider actual scale or spotting before choosing treatment. Regional environmental values cannot determine whether you need a softener. A softener addresses hardness, not every contaminant.