ZipCheckup grade for 70458: B.
This ZIP has a few items worth a quick check.
Your top priority: match a filter's certification to the violations (20 health-based violations). Check your ZIP → NSF certified filters
Slidell, LA (70458): 20 Health-Based Violations Recorded for Mapped Water Systems - 83/100
EPA data combined for 10 water systems mapped to this ZIP (largest mapped system: Slidell Water Supply)
Health-based violation records by water system:
- Ponderosa Ranches Subdivision (6)
- LA1103069 (5)
- Central Park Subdivision (4)
- LA1103072 (2)
- Slidell Water Supply (1)
- and 2 more
EPA records for the water systems mapped to 70458 in Slidell, LA contain 57 recorded violations for inclusive record years 2021 through 2026, all mapped systems combined; 20 are marked health-based.
Data source: U.S. Environmental Protection Agency (EPA) SDWIS
At a Glance
- Water EPA records for water systems mapped to this ZIP show 20 health-based violations and 37 non-health-based (since 2021).
- Lead The reported 90th-percentile lead result is below the laboratory reporting limit, not a measured zero; EPA's health goal for lead is zero.
- Radon EPA Zone 3 - county-level radon potential, not evidence of a low home result.
- Flood 13,746 cumulative NFIP claim records. This historical count is not a current property-risk verdict.
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The critical alert on record for 70458 in Slidell stands alone - no high-priority findings appear in the same compiled data.
Score Breakdown
Overall Home Safety Score: 83/100
This is the published model score. Component and domain values are shown independently; they are not added together on this page.
Canonical components
Required domains
Coverage: 4 of 4 components and 3 of 3 domains observed.
Model 4.0.0; series home-safety-v4-cross-vertical.
Safety & Health (7) CRITICAL
Your Water System
ZIP code 70458 in Slidell, Louisiana is mapped to the water system Slidell Water Supply (EPA ID: LA1103041). This system provides water to approximately 35,547 people from groundwater sources.
There are 10 community water systems serving this area.
Water Systems Serving This Area
| System Name | EPA ID | Population | Source |
|---|---|---|---|
| Slidell Water Supply | LA1103041 | 35,547 | Groundwater |
| Magnolia-lakeshore Estates | LA1103171 | 4,146 | Groundwater |
| Ponderosa Ranches Subdivision | LA1103077 | 579 | Groundwater |
| Utilities Inc. - Lake Village Sd | LA1103064 | 2,724 | Groundwater |
| Utilities Inc. - Magnolia Forest Subd | LA1103054 | 1,635 | Groundwater |
Other Water Quality Reports in Louisiana
- 70001 (Metairie)
- 70002 (Metairie)
- 70003 (Metairie)
- 70004 (Metairie)
- 70005 (Metairie)
- 70006 (Metairie)
- 70009 (Metairie)
- 70010 (Metairie)
- 70011 (Metairie)
- 70030 (Des Allemands)
- 70031 (Ama)
- 70032 (Arabi)
- 70033 (Metairie)
- 70036 (Barataria) - 1 violation recorded for mapped water systems
- 70037 (Belle Chasse) - 1 violation recorded for mapped water systems
- 70038 (Boothville) - 25 violations recorded for mapped water systems
- 70039 (Boutte)
- 70040 (Braithwaite)
- 70041 (Buras) - 25 violations recorded for mapped water systems
- 70043 (Chalmette)
Nearby Water Quality Reports
- 70469 (Slidell) - <1 mi
- 70461 (Slidell) - 3 mi - 21 violations recorded for mapped water systems
- 70460 (Slidell) - 3 mi - 14 violations recorded for mapped water systems
- 70452 (Pearl River) - 8 mi - 43 violations recorded for mapped water systems
- 70445 (Lacombe) - 10 mi - 4 violations recorded for mapped water systems
- 39572 (Pearlington, MS) - 10 mi - 1 violation recorded for mapped water systems
- 70459 (Slidell) - 12 mi
- 70470 (Mandeville) - 12 mi
- 70129 (New Orleans) - 14 mi - 11 violations recorded for mapped water systems
- 70448 (Mandeville) - 18 mi - 4 violations recorded for mapped water systems
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Slidell Water Supply (LA1103041) on EPA.gov.
4 of the top compounds applied across the surrounding county in USGS pesticide-use estimates appear on EPA drinking-water monitoring lists. See the agricultural pesticide-use section.
Compliance History
UCMR 5 PFAS monitoring: no reportable detections in available records
Available federal UCMR5 records for water systems mapped to ZIP code 70458 show no PFAS detections among the compounds tested, at the program's reporting levels.
The EPA Fifth Unregulated Contaminant Monitoring Rule (UCMR5) required community and non-transient non-community water systems serving 3,300 or more people to test for 29 PFAS compounds and lithium between 2023 and 2025. Systems with no detections at the federal minimum reporting level had no results at or above that reporting level.
Environmental Hazards (11) CRITICAL
Home & Infrastructure (6) MODERATE
Cost & Community (9) HIGH
CPSC product recall notices
These national notices are not matched to this ZIP code or water system.
Protect Your Home in Slidell
Based on local data for ZIP 70458, these services may benefit homeowners in your area.
Based on local data for your area. Use the tools below to explore your options.
Home & Flood Insurance
The ZIP code for this report in Slidell has 13,746 FEMA flood claims on record. Standard homeowner policies don't cover flood damage - make sure you're protected.
Typical cost: Flood insurance: premiums vary by property and flood zone; request a quote
Check Your Flood Zone (Free)FEMA flood map lookup - see if your property is in a flood zone
Free tip: Check your FEMA flood zone at msc.fema.gov (free lookup)
Gutter Installation & Repair
The median home in 70458 was built around 1986. Aging gutters can cause foundation damage, basement flooding, and mold - a professional assessment can prevent costly repairs.
Typical cost: Gutter installation: typically $1,000–$2,500 for a standard home
Estimate Your Home Maintenance CostsRoofing Inspection & Repair
Active weather alerts in Louisiana increase the risk of roof damage from hail and high winds. A professional inspection can identify vulnerabilities.
Typical cost: Roof inspection: typically $75–$300; repairs $300–$1,500
Estimate Your Home Insurance NeedsService recommendations are based on public data for this ZIP code (FEMA, Census ACS, NWS). Actual needs vary by property. By calling, your information will be shared with an independent service provider. ZipCheckup may receive compensation. Cost estimates are approximate and vary by property, condition, and contractor.
Frequently Asked Questions
Is the tap water in 70458 safe to drink?
EPA SDWIS records 57 violations since 2021 across the water systems mapped to ZIP 70458 (primary system: Slidell Water Supply), including 20 health-based. The violation table above shows which system each record belongs to. ZipCheckup last updated this page in July 2026. The federal source release date is unavailable, so that month is not presented as source currency.
Where does 70458's water come from?
The recorded water source for Slidell Water Supply, a system mapped to ZIP code 70458, is Groundwater. This system serves approximately 35,547 people.
How does Slidell water compare to the national average?
Slidell's Home Safety Score ranks better than 67% of U.S. ZIP codes, and lower than 90% of ZIP codes within Louisiana.
How can I get my water tested in Slidell?
If Slidell Water Supply supplies your home, contact it for its Consumer Confidence Report; otherwise contact the water utility that serves your address, or hire a certified lab for independent home water testing. The EPA recommends annual testing if you use a private well.
What is the radon risk for 70458?
70458 is mapped to a county in EPA Radon Zone 3 (low county-level radon potential; EPA recommends testing every home), located in St. Tammany County. EPA radon zones range from Zone 1 (highest county-level potential) to Zone 3 (lowest). Testing your home is recommended regardless of zone.
What does the NFIP claim history show for ZIP 70458?
FEMA records contain 13746 flood insurance claims filed in ZIP code 70458; the recorded rated-zone value (the most frequent one if there are several claims) is AE, which is claims evidence and may differ from the current FEMA map zone for a property. This is a substantial claim history, but claim count is not a count of distinct events or properties. Review FEMA's map for the specific property.
How to cite this page
ZipCheckup. (2026). Slidell, LA (70458): 20 Health-Based Violations Recorded for Mapped Water Systems - 83/100. https://zipcheckup.com/report/70458/
@misc{zipcheckup-report-70458,
author = {{ZipCheckup}},
title = {{Slidell, LA (70458): 20 Health-Based Violations Recorded for Mapped Water Systems - 83/100}},
year = {2026},
url = {https://zipcheckup.com/report/70458/}
}
Page version: October 2026.
Nearby ZIP Code Reports
Water quality comparison for ZIP codes near 70458
| ZIP Code | City, State | Distance | Grade | Violations |
|---|---|---|---|---|
| 70469 | Slidell, LA | <1 mi | N/A | 0 |
| 70461 | Slidell, LA | 2.5 mi | A | 21 |
| 70460 | Slidell, LA | 2.7 mi | A | 14 |
| 70452 | Pearl River, LA | 8.0 mi | B | 43 |
| 70445 | Lacombe, LA | 9.9 mi | N/A | 4 |
| 39572 | Pearlington, MS | 10.3 mi | N/A | 1 |
| 70459 | Slidell, LA | 12.1 mi | N/A | 0 |
| 70470 | Mandeville, LA | 12.1 mi | N/A | 0 |
| 70129 | New Orleans, LA | 13.9 mi | B | 11 |
| 70448 | Mandeville, LA | 17.6 mi | A | 4 |
Nearby ZIP Code Reports
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