Data-driven insights for local properties

Complete Property Analysis

Environmental risk, tax analysis, and property details for 11035 N H St, La Porte, TX 77571

HCAD #0231410000654
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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
11035 N H St, La Porte, TX 77571
Building Size
3,696sqft
Total structure area from HCAD building records.
Elevation
23.81 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)
33.65 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)
$211,421
Based on HCAD building value of $325,264.
Depth-Damage (Neighborhood)
$192,840
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
29.2th percentile
Property Pollution Ranking
Moderate
Higher pollution than 71% of Houston homes
Compares pollution within 2mi against 10,000 Houston properties. Lower percentiles = higher pollution.
Industrial Pollution Nearby (10 Years)
246 thousandlbs
High
37.7x more than typical Houston property
≈ 12 dump trucks of chemicals within 2 miles
Air Pollution (10 Years)
246 thousandlbs
Very High
51.0x 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
13
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)245,971 lbs245,801 lbs170 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)17,359 lbs17,359 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 71% 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):
Certain glycol ethers, Xylene (mixed isomers), Methanol, Formaldehyde, Ammonia
View the full list of 27 chemicals below.
Chemicals Released (2014-2024, 10-Year Total)(27 chemicals)
#ChemicalCAS#Air (lbs/10yr)Water (lbs/10yr)Total (lbs/10yr)
1Certain glycol ethersN23062,834 lbs0 lbs62,834 lbs
2Xylene (mixed isomers)1330-20-744,018 lbs0 lbs44,018 lbs
3Methanol67-56-140,951 lbs0 lbs40,951 lbs
4Formaldehyde50-00-036,691 lbs102 lbs36,794 lbs
5Ammonia7664-41-718,956 lbs68 lbs19,024 lbs
6Ethylene glycol107-21-116,752 lbs0 lbs16,752 lbs
7Ethylene74-85-17,000 lbs0 lbs7,000 lbs
8Maleic anhydride108-31-65,570 lbs0 lbs5,570 lbs
9Propylene115-07-14,500 lbs0 lbs4,500 lbs
10Mercury7439-97-60 lbs0 lbs2,200 lbs
11Di(2-ethylhexyl) phthalate117-81-72,020 lbs0 lbs2,020 lbs
12Aluminum oxide (fibrous forms)1344-28-11,750 lbs0 lbs1,750 lbs
131,2,4-Trimethylbenzene95-63-6971 lbs0 lbs971 lbs
14Toluene108-88-3807 lbs0 lbs807 lbs
15Chlorine7782-50-5800 lbs0 lbs800 lbs
16Ethylene oxide75-21-8791 lbs0 lbs791 lbs
17Cyclohexane110-82-7377 lbs0 lbs377 lbs
18Ethylbenzene100-41-4310 lbs0 lbs310 lbs
19Naphthalene91-20-3278 lbs0 lbs278 lbs
20Boron trifluoride7637-07-2239 lbs0 lbs239 lbs
21Cumene98-82-868 lbs0 lbs68 lbs
22Chloromethane74-87-351 lbs0 lbs51 lbs
23Chromium7440-47-345 lbs0 lbs45 lbs
24Propylene oxide75-56-914 lbs0 lbs14 lbs
25Bis(2-chloroethyl) ether111-44-43 lbs0 lbs3 lbs
26Methyl methacrylate80-62-62 lbs0 lbs2 lbs
27n-Butyl alcohol71-36-31 lbs0 lbs1 lbs
📋
Top chemicals released near this property (2024 only):
Methanol, Formaldehyde, Certain glycol ethers, Maleic anhydride, Xylene (mixed isomers)
View the full list of 20 chemicals reported within 2 miles for 2024.
Chemicals Released (2024 Only)(20 chemicals)
#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Methanol67-56-15,220 lbs0 lbs5,220 lbs
2Formaldehyde50-00-03,562 lbs0 lbs3,562 lbs
3Certain glycol ethersN2302,700 lbs0 lbs2,700 lbs
4Maleic anhydride108-31-61,569 lbs0 lbs1,569 lbs
5Xylene (mixed isomers)1330-20-71,183 lbs0 lbs1,183 lbs
6Ammonia7664-41-7897 lbs0 lbs897 lbs
7Ethylene74-85-1650 lbs0 lbs650 lbs
8Propylene115-07-1500 lbs0 lbs500 lbs
9Aluminum oxide (fibrous forms)1344-28-1250 lbs0 lbs250 lbs
10Naphthalene91-20-3245 lbs0 lbs245 lbs
11Ethylbenzene100-41-4220 lbs0 lbs220 lbs
12Chlorine7782-50-5160 lbs0 lbs160 lbs
131,2,4-Trimethylbenzene95-63-674 lbs0 lbs74 lbs
14Ethylene oxide75-21-863 lbs0 lbs63 lbs
15Cyclohexane110-82-724 lbs0 lbs24 lbs
16Boron trifluoride7637-07-220 lbs0 lbs20 lbs
17Toluene108-88-316 lbs0 lbs16 lbs
18Cumene98-82-84 lbs0 lbs4 lbs
19Propylene oxide75-56-91 lbs0 lbs1 lbs
20Ethylene glycol107-21-11 lbs0 lbs1 lbs
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