Data-driven insights for local properties

Complete Property Analysis

Environmental risk, tax analysis, and property details for 11028 N H St, La Porte, TX 77571

HCAD #0231410000476
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🌍Environmental Assessment

This comprehensive report analyzes both flood risk and industrial pollution exposure for this property. The assessment combines multiple data sources including USGS elevation, FEMA flood zones, historical storm modeling, and EPA Toxic Release Inventory records.

🌊Flood Risk Analysis
FEMA Zone X
Property Overview

This section shows the fundamental characteristics of the property, including its elevation above sea level, FEMA flood zone designation, and our calculated overall flood risk rating based on historical data and topographic analysis.

Address
11028 N H St, La Porte, TX 77571
Building Size
2,432sqft
Total structure area from HCAD building records.
Elevation
23.31 ft
Height above sea level from USGS data.
FEMA Flood Zone
X
Moderate to Low Risk - Outside 500-year floodplain
Overall Risk
Very High
Property flooded at 9.84ft depth.
Risk Assessment Outputs

These detailed metrics show the technical outputs from our flood risk model. They include predicted water depths at the property during a 5000-year flood event and estimated flood damage based on USACE methodology.

Risk Rating
Very High
Flood Depth
9.84 ft±0.5 ft
Depth of water above ground level.
Water Surface Elevation (WSE)
33.15 ft
Water surface elevation relative to sea level (NAVD88 datum).
Area Inundated
294.4 acres
99.8% of 500m radius flooded.
Nearest Bayou Stage
N/A
No nearby bayou within monitoring range
Depth-Damage (HCAD Valuation)
$70,721
Based on HCAD building value of $108,803.
Depth-Damage (Neighborhood)
$132,708
Based on neighborhood replacement cost.
Analysis Method
COG Combined 5000 Model
Raster-based flood inundation query
Flood Simulation

This simulation shows whether the property would flood based on a 5000-year flood event with 3m (9.84ft) water level. Use the interactive tool to explore different scenarios.

Property Would Be Flooded
Flood Depth: 9.84 feet
Severity
Severe
Adjust Flood Simulation

The analysis above uses default settings (5000-year flood, 3m/9.84ft water level). To explore different flood scenarios with interactive maps, return to the main tool:

Open Interactive Analysis Tool
Flood Risk Recommendations

Based on the property's flood risk profile, here are specific action items to consider.

#1
Minimal flood hazard area - property outside mapped high-risk zones
#2
Flood insurance available at preferred rates - over 25% of claims occur in low-risk areas
#3
Review official FEMA Flood Insurance Rate Map (FIRM) for detailed flood zone boundaries
#4
Contact Harris County Flood Control District (HCFCD) for drainage projects and flood information
🏭Industrial Pollution Exposure
35.8th percentile
Property Pollution Ranking
Moderate
Higher pollution than 64% of Houston homes
Compares pollution within 2mi against 10,000 Houston properties. Lower percentiles = higher pollution.
Industrial Pollution Nearby (10 Years)
106 thousandlbs
High
16.2x more than typical Houston property
≈ 5 dump trucks of chemicals within 2 miles
Air Pollution (10 Years)
106 thousandlbs
High
21.9x more than typical Houston property
Includes fugitive emissions (leaks) and stack emissions (smokestacks).
Water Pollution (10 Years)
170lbs
High
Discharges to bayous, streams, and drainage systems.
Facilities Nearby
10
Industrial facilities within 2 miles
💡
Why It Matters: High chemical activity nearby can indicate industrial zones, truck traffic, or potential odor and noise issues. These factors may affect air quality, long-term property desirability, and neighborhood character. This data helps you understand the industrial footprint around your property.
Houston Metro Benchmarks

Comparison with typical Houston properties (based on 10,000 randomly sampled homes). All measurements are for chemicals released within a 2-mile radius.

PeriodTotalAirWater
Typical Houston Property (2014-2024)6,524 lbs4,822 lbs0 lbs
This Property (2014-2024)105,710 lbs105,540 lbs170 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)5,839 lbs5,839 lbs0 lbs
How This Property Compares to Houston Metro

Based on a random sample of 10,000 Houston properties, this chart shows the distribution of pollution levels across the metro area. The highlighted bar indicates where this property falls compared to other homes. Lower percentiles mean higher pollution exposure.

0-9thMost Polluted
9.9%
10-19th
10.1%
20-29th
9.9%
30-39th
10.1%
40-49th
9.7%
50-59th
10.2%
60-69th
6%
70-79th
5.8%
80-89th
4.3%
90-100thLowest Pollution
34.2%
Higher pollution than 64% of Houston homes
Each bar's width represents the percentage of Houston homes in that pollution range. This property ranks in the 30-39th percentile.
📋
Top chemicals released near this property (past 10 years):
Xylene (mixed isomers), Ammonia, Ethylene glycol, Ethylene, Maleic anhydride
View the full list of 24 chemicals below.
Chemicals Released (2014-2024, 10-Year Total)(24 chemicals)
#ChemicalCAS#Air (lbs/10yr)Water (lbs/10yr)Total (lbs/10yr)
1Xylene (mixed isomers)1330-20-744,018 lbs0 lbs44,018 lbs
2Ammonia7664-41-718,956 lbs68 lbs19,024 lbs
3Ethylene glycol107-21-116,752 lbs0 lbs16,752 lbs
4Ethylene74-85-17,000 lbs0 lbs7,000 lbs
5Maleic anhydride108-31-65,570 lbs0 lbs5,570 lbs
6Propylene115-07-14,500 lbs0 lbs4,500 lbs
7Methanol67-56-13,226 lbs0 lbs3,226 lbs
8Mercury7439-97-60 lbs0 lbs2,200 lbs
9Aluminum oxide (fibrous forms)1344-28-11,750 lbs0 lbs1,750 lbs
101,2,4-Trimethylbenzene95-63-6971 lbs0 lbs971 lbs
11Toluene108-88-3807 lbs0 lbs807 lbs
12Ethylene oxide75-21-8791 lbs0 lbs791 lbs
13Cyclohexane110-82-7377 lbs0 lbs377 lbs
14Ethylbenzene100-41-4310 lbs0 lbs310 lbs
15Naphthalene91-20-3278 lbs0 lbs278 lbs
16Formaldehyde50-00-046 lbs102 lbs148 lbs
17Cumene98-82-868 lbs0 lbs68 lbs
18Chloromethane74-87-351 lbs0 lbs51 lbs
19Chromium7440-47-345 lbs0 lbs45 lbs
20Propylene oxide75-56-914 lbs0 lbs14 lbs
21Bis(2-chloroethyl) ether111-44-43 lbs0 lbs3 lbs
22Certain glycol ethersN2303 lbs0 lbs3 lbs
23Methyl methacrylate80-62-62 lbs0 lbs2 lbs
24n-Butyl alcohol71-36-31 lbs0 lbs1 lbs
📋
Top chemicals released near this property (2024 only):
Maleic anhydride, Xylene (mixed isomers), Ammonia, Ethylene, Propylene
View the full list of 17 chemicals reported within 2 miles for 2024.
Chemicals Released (2024 Only)(17 chemicals)
#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Maleic anhydride108-31-61,569 lbs0 lbs1,569 lbs
2Xylene (mixed isomers)1330-20-71,183 lbs0 lbs1,183 lbs
3Ammonia7664-41-7897 lbs0 lbs897 lbs
4Ethylene74-85-1650 lbs0 lbs650 lbs
5Propylene115-07-1500 lbs0 lbs500 lbs
6Aluminum oxide (fibrous forms)1344-28-1250 lbs0 lbs250 lbs
7Naphthalene91-20-3245 lbs0 lbs245 lbs
8Ethylbenzene100-41-4220 lbs0 lbs220 lbs
9Methanol67-56-1139 lbs0 lbs139 lbs
101,2,4-Trimethylbenzene95-63-674 lbs0 lbs74 lbs
11Ethylene oxide75-21-863 lbs0 lbs63 lbs
12Cyclohexane110-82-724 lbs0 lbs24 lbs
13Toluene108-88-316 lbs0 lbs16 lbs
14Cumene98-82-84 lbs0 lbs4 lbs
15Formaldehyde50-00-03 lbs0 lbs3 lbs
16Propylene oxide75-56-91 lbs0 lbs1 lbs
17Ethylene glycol107-21-11 lbs0 lbs1 lbs
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