Data-driven insights for local properties

📊 Environmental Assessment Report

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.

🌊 Part 1: Flood Risk Analysis

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
1002 ROBINSON RD LA PORTE 77571
Building Size
2,922 sqft
Total structure area from HCAD building records.
Elevation
26.73 ft
Height above sea level from USGS data.
FEMA Flood Zone
X
Moderate to Low Risk - Outside 500-year floodplain
Overall Risk
Very Low
Risk based on FEMA zone and simulation.

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 Low
Flood Depth
0 ft ±0.5 ft
No flooding at current water level.
Water Surface Elevation (WSE)
N/A
Water surface elevation data not available.
Area Inundated
N/A
Data not available
Nearest Bayou Stage
N/A
No nearby bayou within monitoring range
Depth-Damage Estimate (HCAD Valuation)
$0
Property not flooded at current water level. No damage to calculate.
Depth-Damage Estimate (Neighborhood Comparison)
$0
Property not flooded at current water level. No damage to calculate.
Analysis Method
COG Bathtub 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 Safe
Safety Margin: 16.73 feet
Severity: Safe

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.

  • FEMA Zone X (minimal hazard) - flood insurance available at preferred rates.
  • Review the interactive flood simulator to understand how different rainfall events could affect this property.
  • Contact Harris County Flood Control District (HCFCD) for drainage projects and flood information.

🏭 Part 2: Industrial Pollution Exposure

Property Pollution Ranking
High
Higher pollution than 90% of Houston homes
This ranking compares pollution levels within 2 miles of this property against 10,000 randomly sampled Houston metro properties. Lower percentiles indicate higher pollution exposure.
Industrial Pollution Nearby (Last 10 Years)
8.07 million lbs
Extremely High
1236.4x more than typical Houston property
≈ 403 dump trucks of chemicals within 2 miles
Total chemical releases from all industrial facilities within a 2-mile radius over the past decade (2014–2024). Data from EPA's Toxic Release Inventory tracking air, water, and land discharges.
💨 Air Pollution (Last 10 Years)
6.54 million lbs
Extremely High
1356.7x more than typical Houston property
Chemicals released into the air from nearby facilities over 10 years. Includes both fugitive emissions (leaks, evaporation) and stack emissions (smokestacks, vents). May affect local air quality.
💧 Water Pollution (Last 10 Years)
1.52 million lbs
Extremely High
Most Houston properties have none nearby
Chemical discharges to surface water (bayous, streams, drainage) from industrial facilities within 2 miles over the past decade. May impact local waterways and drainage systems.

❤️ 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)8,066,865 lbs6,542,492 lbs1,524,373 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)2,400,712 lbs501,593 lbs176,905 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 90% of Houston homes
Each bar's width represents the percentage of Houston homes in that pollution range. This property ranks in the 10-19th percentile (top 15% most polluted).

Top chemicals released near this property (past 10 years):

Ethylene, Methanol, Vinyl acetate, Propylene, Nitrate compounds (water dissociable; reportable only when in aqueous solution)

View the full list of 43 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (43 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Ethylene74-85-12,227,422 lbs0 lbs2,227,422 lbs
2Methanol67-56-1894,147 lbs653,326 lbs1,547,473 lbs
3Vinyl acetate108-05-41,158,764 lbs5,684 lbs1,164,448 lbs
4Propylene115-07-11,094,429 lbs0 lbs1,094,429 lbs
5Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs834,700 lbs834,700 lbs
6n-Hexane110-54-3494,212 lbs0 lbs494,212 lbs
7Ammonia7664-41-7239,837 lbs8,992 lbs248,829 lbs
8Certain glycol ethersN23063,696 lbs0 lbs63,696 lbs
91,3-Butadiene106-99-050,362 lbs0 lbs50,362 lbs
10Xylene (mixed isomers)1330-20-743,144 lbs0 lbs43,144 lbs
11Methyl iodide74-88-437,993 lbs0 lbs37,993 lbs
12Chlorine7782-50-533,425 lbs3,421 lbs36,846 lbs
13Formaldehyde50-00-036,646 lbs0 lbs36,646 lbs
14Acetaldehyde75-07-026,661 lbs0 lbs26,661 lbs
15Zinc compoundsN9826,213 lbs18,100 lbs24,313 lbs
16Benzene71-43-219,821 lbs42 lbs19,863 lbs
17Ethylene glycol107-21-116,751 lbs0 lbs16,751 lbs
18Chlorobenzene108-90-716,036 lbs0 lbs16,036 lbs
19Cyclohexane110-82-714,194 lbs0 lbs14,194 lbs
20Boron trifluoride7637-07-214,190 lbs0 lbs14,190 lbs
21Chloroethane75-00-313,375 lbs0 lbs13,375 lbs
22Toluene108-88-39,250 lbs33 lbs9,282 lbs
23N,N-Dimethylformamide68-12-29,020 lbs0 lbs9,020 lbs
24Isoprene78-79-55,909 lbs0 lbs5,909 lbs
25Maleic anhydride108-31-65,569 lbs0 lbs5,569 lbs
26DiisocyanatesN1204,276 lbs0 lbs4,276 lbs
27Mercury7439-97-60 lbs0 lbs2,200 lbs
28Di(2-ethylhexyl) phthalate117-81-72,020 lbs0 lbs2,020 lbs
29Aluminum oxide (fibrous forms)1344-28-11,750 lbs0 lbs1,750 lbs
30Styrene100-42-51,209 lbs0 lbs1,209 lbs
31Naphthalene91-20-3493 lbs33 lbs526 lbs
32Aluminum (fume or dust)7429-90-5462 lbs0 lbs462 lbs
33Ethylbenzene100-41-4391 lbs32 lbs423 lbs
34Chloromethane74-87-3326 lbs0 lbs326 lbs
35Dicyclopentadiene77-73-6290 lbs0 lbs290 lbs
36n-Butyl alcohol71-36-387 lbs0 lbs87 lbs
37sec-Butyl alcohol78-92-268 lbs0 lbs68 lbs
38Chromium7440-47-345 lbs0 lbs45 lbs
39Lead7439-92-10 lbs10 lbs10 lbs
40Polycyclic aromatic compoundsN5907 lbs0 lbs7 lbs
41Mercury compoundsN4582 lbs0 lbs2 lbs
42Benzo[g,h,i]perylene191-24-20 lbs1 lbs1 lbs
43Mercury And Mercury CompoundsN4581 lbs0 lbs1 lbs

Top chemicals released near this property (2024 only):

Methanol, Aluminum oxide (fibrous forms), Ethylene, Maleic anhydride, Nitrate compounds (water dissociable; reportable only when in aqueous solution)

View the full list of 37 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (37 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Methanol67-56-169,501 lbs64,010 lbs1,304,726 lbs
2Aluminum oxide (fibrous forms)1344-28-1250 lbs0 lbs353,010 lbs
3Ethylene74-85-1143,550 lbs0 lbs143,550 lbs
4Maleic anhydride108-31-61,569 lbs0 lbs134,889 lbs
5Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs112,100 lbs112,100 lbs
6Vinyl acetate108-05-488,580 lbs410 lbs102,853 lbs
7Propylene115-07-197,954 lbs0 lbs97,954 lbs
8Ammonia7664-41-729,391 lbs121 lbs67,904 lbs
9n-Hexane110-54-342,070 lbs0 lbs43,412 lbs
10Formaldehyde50-00-03,559 lbs0 lbs5,799 lbs
11Chlorine7782-50-53,660 lbs0 lbs3,660 lbs
12Polycyclic aromatic compoundsN5903 lbs0 lbs3,624 lbs
13Zinc compoundsN982426 lbs233 lbs3,305 lbs
14Certain glycol ethersN2303,026 lbs0 lbs3,026 lbs
151,3-Butadiene106-99-02,958 lbs0 lbs2,958 lbs
16Toluene108-88-31,859 lbs3 lbs2,815 lbs
17Cyclohexane110-82-71,726 lbs0 lbs2,621 lbs
18Benzene71-43-21,725 lbs3 lbs2,171 lbs
19DiisocyanatesN1201,843 lbs0 lbs1,843 lbs
20Methyl iodide74-88-41,600 lbs0 lbs1,600 lbs
21Chloroethane75-00-31,429 lbs0 lbs1,429 lbs
22Boron trifluoride7637-07-21,192 lbs0 lbs1,192 lbs
23Xylene (mixed isomers)1330-20-71,144 lbs0 lbs1,144 lbs
24Acetaldehyde75-07-0590 lbs0 lbs595 lbs
25Isoprene78-79-5578 lbs0 lbs578 lbs
26N,N-Dimethylformamide68-12-2570 lbs0 lbs570 lbs
27Lead7439-92-10 lbs5 lbs457 lbs
28Ethylbenzene100-41-4358 lbs2 lbs365 lbs
29Naphthalene91-20-3270 lbs18 lbs288 lbs
30Styrene100-42-5141 lbs0 lbs155 lbs
31Benzo[g,h,i]perylene191-24-20 lbs0 lbs38 lbs
32Dicyclopentadiene77-73-630 lbs0 lbs30 lbs
33Aluminum (fume or dust)7429-90-526 lbs0 lbs26 lbs
34Mercury And Mercury CompoundsN4581 lbs0 lbs12 lbs
35n-Butyl alcohol71-36-37 lbs0 lbs7 lbs
36sec-Butyl alcohol78-92-25 lbs0 lbs5 lbs
37Ethylene glycol107-21-11 lbs0 lbs1 lbs

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