Water Quality in 70401 — Hammond, LA
EPA data for TANGIPAHOA PARISH WATER DISTRICT
Data source: U.S. Environmental Protection Agency (EPA) SDWIS Last verified: March 16, 2026
Your Water System
ZIP code 70401 in Hammond, Louisiana is served by TANGIPAHOA PARISH WATER DISTRICT (EPA ID: LA1105008). This system provides water to approximately 72,504 people from groundwater sources.
There are 10 community water systems serving this area.
Lead & Copper in Your Water
No Lead & Copper Rule sampling data available for systems serving this ZIP code.
Violation Summary
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| October 17, 2024 | Stage 2 DBP Rule | Health-based | Resolved |
| October 17, 2024 | Stage 2 DBP Rule | Health-based | Resolved |
| October 17, 2024 | Stage 2 DBP Rule | Health-based | Resolved |
| July 1, 2023 | Stage 1 DBP Rule | Monitoring | Unresolved |
| July 1, 2023 | Stage 1 DBP Rule | Monitoring | Resolved |
| July 1, 2023 | Stage 1 DBP Rule | Monitoring | Unresolved |
| July 1, 2023 | Stage 1 DBP Rule | Monitoring | Unresolved |
| July 1, 2023 | Stage 1 DBP Rule | Monitoring | Unresolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for water systems serving this ZIP code:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Stage 1 DBP Rule | Treatment Technique | 6 | No |
| Stage 2 DBP Rule | Treatment Technique | 3 | Yes |
Need help with your water quality?
Call to get connected with a local professional in your area.
Call (855) 384-4856This is a free service. You will be connected with an independent service provider.
Water Systems Serving This Area
| System Name | EPA ID | Population | Source |
|---|---|---|---|
| TANGIPAHOA PARISH WATER DISTRICT | LA1105008 | 72,504 | Groundwater |
| CITY OF HAMMOND WATER SYSTEM | LA1105009 | 21,135 | Groundwater |
| TANGIPAHOA (SECOND WARD) WATER DISTRICT | LA1105077 | 4,112 | Groundwater |
| EASTERN HEIGHTS WATER WORKS | LA1105003 | 1,782 | Groundwater |
| THE CHARLESTON MHC WATER SYSTEM | LA1019039 | 567 | Groundwater |
What You Can Do
- Request your water system’s Consumer Confidence Report (CCR) — Your utility is required to publish this annually
- Consider a home water test — Independent testing can reveal issues in your specific plumbing
- Install a certified water filter — NSF-certified filters can address specific contaminants
- Contact your water provider — Ask about current treatment and any ongoing remediation
Need help with water testing or filtration?
Call to get connected with a local professional in your area.
Call (855) 384-4856This is a free service. You will be connected with an independent service provider.
Other Water Quality Reports in Louisiana
- 70037 (Belle Chasse) — 102 violations
- 70043 (Chalmette)
- 70053 (Gretna) — 4 violations
- 70094 (Westwego) — 9 violations
- 70112 (New Orleans) — 36 violations
- 70301 (Thibodaux)
- 70360 (Houma)
- 70380 (Morgan City) — 8 violations
- 70427 (Bogalusa) — 16 violations
- 70433 (Covington) — 4 violations
- 70448 (Mandeville)
- 70458 (Slidell) — 8 violations
- 70500 (Lafayette)
- 70510 (Abbeville)
- 70560 (New Iberia) — 33 violations
- 70570 (Opelousas) — 19 violations
- 70601 (Lake Charles)
- 70663 (Sulphur) — 3 violations
- 70704 (Baker) — 5 violations
- 70706 (Denham Springs) — 1 violation
Nearby Water Quality Reports
- 70433 (Covington) — 23 mi — 4 violations
- 70706 (Denham Springs) — 26 mi — 1 violation
- 70448 (Mandeville) — 28 mi
- 70707 (Gonzales) — 31 mi — 2 violations
- 70704 (Baker) — 35 mi — 5 violations
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for TANGIPAHOA PARISH WATER DISTRICT (LA1105008) on EPA.gov.
Frequently Asked Questions
Is the tap water in 70401 safe to drink?
Hammond’s water system has recorded 3 health-based violations in the past 5 years. While the system is required to treat water to meet federal standards, you may want to consider additional precautions such as a certified water filter.
Where does 70401’s water come from?
The primary water source for this area is groundwater. TANGIPAHOA PARISH WATER DISTRICT serves approximately 72,504 people.
How can I get my water tested?
Contact your local water utility for a free water quality report, or hire a certified lab for independent home water testing. The EPA recommends testing annually if you use a private well.
Does 70401 have lead in the water?
No Lead and Copper Rule sampling data is currently available in EPA records for water systems serving ZIP code 70401. If you are concerned about lead, contact your water utility or have your tap water independently tested.
What is the radon risk in 70401?
Radon zone data is not available for ZIP code 70401. The EPA recommends testing all homes for radon regardless of location, as radon levels can vary significantly even within the same neighborhood.