Data-driven insights for local properties

Complete Property Analysis

Environmental risk, tax analysis, and property details for 11207 N H St, La Porte, TX 77571

HCAD #0231410000498
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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
11207 N H St, La Porte, TX 77571
Building Size
1,402sqft
Total structure area from HCAD building records.
Elevation
22.36 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)
32.20 ft
Water surface elevation relative to sea level (NAVD88 datum).
Area Inundated
294.9 acres
100.0% of 500m radius flooded.
Nearest Bayou Stage
N/A
No nearby bayou within monitoring range
Depth-Damage (HCAD Valuation)
$59,967
Based on HCAD building value of $92,258.
Depth-Damage (Neighborhood)
$73,705
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
19.1th percentile
Property Pollution Ranking
High
Higher pollution than 81% of Houston homes
Compares pollution within 2mi against 10,000 Houston properties. Lower percentiles = higher pollution.
Industrial Pollution Nearby (10 Years)
1.07 millionlbs
Extremely High
164.6x more than typical Houston property
≈ 54 dump trucks of chemicals within 2 miles
Air Pollution (10 Years)
1.07 millionlbs
Extremely High
222.6x 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)1,073,630 lbs1,073,460 lbs170 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)72,109 lbs72,109 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 81% of Houston homes
Each bar's width represents the percentage of Houston homes in that pollution range. This property ranks in the 20-29th percentile.
📋
Top chemicals released near this property (past 10 years):
Methanol, Ethylene, Vinyl acetate, Certain glycol ethers, Xylene (mixed isomers)
View the full list of 28 chemicals below.
Chemicals Released (2014-2024, 10-Year Total)(28 chemicals)
#ChemicalCAS#Air (lbs/10yr)Water (lbs/10yr)Total (lbs/10yr)
1Methanol67-56-1460,400 lbs0 lbs460,400 lbs
2Ethylene74-85-1312,775 lbs0 lbs312,775 lbs
3Vinyl acetate108-05-4102,664 lbs0 lbs102,664 lbs
4Certain glycol ethersN23062,834 lbs0 lbs62,834 lbs
5Xylene (mixed isomers)1330-20-744,018 lbs0 lbs44,018 lbs
6Formaldehyde50-00-036,691 lbs102 lbs36,794 lbs
7Ammonia7664-41-718,956 lbs68 lbs19,024 lbs
8Ethylene glycol107-21-116,752 lbs0 lbs16,752 lbs
9Maleic anhydride108-31-65,570 lbs0 lbs5,570 lbs
10Propylene115-07-14,500 lbs0 lbs4,500 lbs
11Mercury7439-97-60 lbs0 lbs2,200 lbs
12Di(2-ethylhexyl) phthalate117-81-72,020 lbs0 lbs2,020 lbs
13Aluminum oxide (fibrous forms)1344-28-11,750 lbs0 lbs1,750 lbs
141,2,4-Trimethylbenzene95-63-6971 lbs0 lbs971 lbs
15Toluene108-88-3807 lbs0 lbs807 lbs
16Chlorine7782-50-5800 lbs0 lbs800 lbs
17Ethylene oxide75-21-8791 lbs0 lbs791 lbs
18Cyclohexane110-82-7377 lbs0 lbs377 lbs
19Ethylbenzene100-41-4310 lbs0 lbs310 lbs
20Naphthalene91-20-3278 lbs0 lbs278 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
25Acetaldehyde75-07-010 lbs0 lbs10 lbs
26Bis(2-chloroethyl) ether111-44-43 lbs0 lbs3 lbs
27Methyl methacrylate80-62-62 lbs0 lbs2 lbs
28n-Butyl alcohol71-36-31 lbs0 lbs1 lbs
📋
Top chemicals released near this property (2024 only):
Methanol, Ethylene, Vinyl acetate, Formaldehyde, Certain glycol ethers
View the full list of 21 chemicals reported within 2 miles for 2024.
Chemicals Released (2024 Only)(21 chemicals)
#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Methanol67-56-144,240 lbs0 lbs44,240 lbs
2Ethylene74-85-19,510 lbs0 lbs9,510 lbs
3Vinyl acetate108-05-46,880 lbs0 lbs6,880 lbs
4Formaldehyde50-00-03,562 lbs0 lbs3,562 lbs
5Certain glycol ethersN2302,700 lbs0 lbs2,700 lbs
6Maleic anhydride108-31-61,569 lbs0 lbs1,569 lbs
7Xylene (mixed isomers)1330-20-71,183 lbs0 lbs1,183 lbs
8Ammonia7664-41-7897 lbs0 lbs897 lbs
9Propylene115-07-1500 lbs0 lbs500 lbs
10Aluminum oxide (fibrous forms)1344-28-1250 lbs0 lbs250 lbs
11Naphthalene91-20-3245 lbs0 lbs245 lbs
12Ethylbenzene100-41-4220 lbs0 lbs220 lbs
13Chlorine7782-50-5160 lbs0 lbs160 lbs
141,2,4-Trimethylbenzene95-63-674 lbs0 lbs74 lbs
15Ethylene oxide75-21-863 lbs0 lbs63 lbs
16Cyclohexane110-82-724 lbs0 lbs24 lbs
17Toluene108-88-316 lbs0 lbs16 lbs
18Acetaldehyde75-07-010 lbs0 lbs10 lbs
19Cumene98-82-84 lbs0 lbs4 lbs
20Propylene oxide75-56-91 lbs0 lbs1 lbs
21Ethylene glycol107-21-11 lbs0 lbs1 lbs
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