Denham Springs, LA: 3 Violations — 78/100 (2026)
3 ZIP codes · 9 water systems · Updated 2026-06-03
Water utilities in Denham Springs have maintained a consistent compliance record over recent monitoring periods — the city's above-average grade in LA reflects low violation rates and no systemic health concerns flagged in current data.
How Denham Springs Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Denham Springs Water
- Your city's water systems recorded 3 violations in the past 5 years.
- Average lead level: 0.001 mg/L.
- Homes built before 1986: 25% — older plumbing may contain lead solder.
- Estimated remediation: $2,267 per household.
- CDC health risk index: 14.1 — above typical levels.
Who Supplies Your Water in Denham Springs
9 water systems are tracked federally in Denham Springs, LA. The top 3 providers collectively serve most residential addresses, but because they operate independently, infrastructure maintenance standards and compliance histories differ from one service zone to another.
Overview
We track water quality and home safety data for 3 ZIP codes in Denham Springs, Louisiana (population ~84,586), covering 9 community water systems serving approximately 725,991 people region-wide.
3 of 3 ZIP codes (100%) have recorded EPA violations. All violations are monitoring/reporting type.
Home Safety Score
Average Home Safety Score for Denham Springs: B (78/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Denham Springs water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0010 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
- Zone 1 (High): 0 ZIP codes
- Zone 2 (Moderate): 0 ZIP codes
- Zone 3 (Low): 3 ZIP codes
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Stage 1 DBP Rule | Treatment Technique | 4 | 3 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 70706 | B | 1 | 0 | Ward Ii Water District |
| 70726 | B | 1 | 0 | Ward Ii Water District |
| 70727 | A | 1 | 0 | Ward Ii Water District |
All ZIP Codes in Denham Springs
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Updated daily.
Health Outcomes in Denham Springs
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Top Contaminants in Denham Springs Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Housing & Infrastructure in Denham Springs
Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
A median build year of 1999 in Denham Springs points to a housing stock where post-1986 construction is the norm. That matters because lead solder in plumbing — banned federally in 1986 — is a primary pathway by which older homes can elevate tap water lead above what enters the distribution system.
Most homes in Denham Springs were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
Cost Context: What Remediation Means for Denham Springs Homeowners
Placing remediation in the context of Denham Springs's property market, the equity share is low — most homeowners here are weighing a financial commitment that fits comfortably within routine property planning, far from the threshold where remediation becomes a material equity decision rather than a standard upkeep consideration.
Remediation costs in Denham Springs are relatively low compared to home values. The $1,600–$3,500 estimated range is a small fraction of median property value. Home values are 40% above the Louisiana average.
Lead Exposure Risk for Children in Denham Springs
Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
Generally, the structural picture for Denham Springs runs in a quiet direction. Aggregate sampling rests under the federal action benchmark, and 25% of housing comes from the pre-rule era — a contained local footprint. That dual signal keeps lead in the background of local concerns, while a one-faucet measurement still answers a different question than any system average can: what is actually flowing from one specific tap on a given morning.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Flood & Climate Risk in Denham Springs
Decades of documented flood activity appear in Denham Springs's NFIP record — 8033 insurance claims filed and 100% of ZIP codes carrying FEMA flood designations. The scale of that record puts water infrastructure vulnerability from flooding into the concrete-risk category.
Denham Springs has a significant flood history with 8,033 FEMA flood insurance claims on record, averaging $60,708 per claim. With 100% of ZIP codes in FEMA-designated flood zones, flood risk is a major concern for homeowners and water quality.
How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. Flood damage can add significantly to the estimated <strong>$2,267</strong> remediation cost per household.
Residents in flood-prone areas should consider flood insurance even outside FEMA zones — over 25% of flood claims come from low-to-moderate risk areas. After any flood event, test your water before drinking.
Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.
Deep Dive Reports
Detailed analysis for Denham Springs, LA