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
908 ROBINSON RD LA PORTE 77571
Building Size
2,436 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
Very High
Higher pollution than 91% 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)
9.25 million lbs
Extremely High
1418.2x more than typical Houston property
≈ 463 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)
6.79 million lbs
Extremely High
1407.4x 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)
2.47 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)9,252,826 lbs6,786,888 lbs2,465,937 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)2,403,114 lbs502,343 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 91% 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, Nitrate compounds (water dissociable; reportable only when in aqueous solution), Vinyl acetate, Propylene

View the full list of 55 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (55 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Ethylene74-85-12,254,316 lbs0 lbs2,254,316 lbs
2Methanol67-56-11,008,485 lbs653,326 lbs1,920,811 lbs
3Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs1,746,382 lbs1,746,382 lbs
4Vinyl acetate108-05-41,175,529 lbs5,684 lbs1,318,823 lbs
5Propylene115-07-11,094,429 lbs0 lbs1,094,429 lbs
6n-Hexane110-54-3511,036 lbs0 lbs511,036 lbs
7Ammonia7664-41-7239,837 lbs12,191 lbs252,028 lbs
8Certain glycol ethersN23063,696 lbs0 lbs63,696 lbs
9Xylene (mixed isomers)1330-20-743,900 lbs0 lbs58,245 lbs
10Toluene108-88-354,250 lbs33 lbs54,282 lbs
111,3-Butadiene106-99-050,362 lbs0 lbs50,362 lbs
12Methyl iodide74-88-437,993 lbs0 lbs37,993 lbs
13Chlorine7782-50-534,156 lbs3,421 lbs37,577 lbs
14Acetaldehyde75-07-030,448 lbs0 lbs36,678 lbs
15Formaldehyde50-00-036,646 lbs0 lbs36,646 lbs
16Sodium nitrite7632-00-00 lbs26,012 lbs26,012 lbs
17Zinc compoundsN9826,213 lbs18,100 lbs24,313 lbs
18Benzene71-43-219,821 lbs42 lbs19,863 lbs
19Ethylene glycol107-21-116,751 lbs0 lbs16,751 lbs
20Chlorobenzene108-90-716,036 lbs0 lbs16,036 lbs
21Hydroquinone123-31-90 lbs0 lbs14,940 lbs
22Cyclohexane110-82-714,194 lbs0 lbs14,194 lbs
23Boron trifluoride7637-07-214,190 lbs0 lbs14,190 lbs
24Chloroethane75-00-313,375 lbs0 lbs13,375 lbs
25N,N-Dimethylformamide68-12-29,020 lbs0 lbs9,020 lbs
26Dimethylamine124-40-37,035 lbs0 lbs7,035 lbs
27Isoprene78-79-55,909 lbs0 lbs5,909 lbs
28Maleic anhydride108-31-65,569 lbs0 lbs5,569 lbs
29Dichloromethane75-09-25,437 lbs0 lbs5,437 lbs
30Acetonitrile75-05-85,326 lbs0 lbs5,326 lbs
31DiisocyanatesN1204,276 lbs0 lbs4,276 lbs
32Mercury7439-97-60 lbs0 lbs2,200 lbs
33Di(2-ethylhexyl) phthalate117-81-72,020 lbs0 lbs2,020 lbs
34Aluminum oxide (fibrous forms)1344-28-11,750 lbs0 lbs1,750 lbs
35Styrene100-42-51,209 lbs0 lbs1,209 lbs
36Hydrogen fluoride7664-39-31,062 lbs0 lbs1,062 lbs
37Naphthalene91-20-3493 lbs33 lbs526 lbs
38Aluminum (fume or dust)7429-90-5462 lbs0 lbs462 lbs
39Ethylbenzene100-41-4391 lbs32 lbs423 lbs
40Methyl methacrylate80-62-6385 lbs0 lbs385 lbs
41Chloromethane74-87-3326 lbs0 lbs326 lbs
42Dicyclopentadiene77-73-6290 lbs0 lbs290 lbs
43Manganese7439-96-50 lbs282 lbs282 lbs
44Hexazinone51235-04-20 lbs212 lbs212 lbs
45Nickel7440-02-00 lbs152 lbs152 lbs
46n-Butyl alcohol71-36-387 lbs0 lbs87 lbs
47Chromium7440-47-345 lbs25 lbs70 lbs
48sec-Butyl alcohol78-92-268 lbs0 lbs68 lbs
49Methyl acrylate96-33-355 lbs0 lbs55 lbs
50Lead7439-92-10 lbs10 lbs10 lbs
51Polycyclic aromatic compoundsN5907 lbs0 lbs7 lbs
52Mercury compoundsN4582 lbs0 lbs2 lbs
53Benzo[g,h,i]perylene191-24-20 lbs1 lbs1 lbs
54Methyl isocyanate624-83-91 lbs0 lbs1 lbs
55Mercury 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)
1Methanol67-56-170,251 lbs64,010 lbs1,305,476 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
11Polycyclic aromatic compoundsN5903 lbs0 lbs5,276 lbs
12Chlorine7782-50-53,660 lbs0 lbs3,660 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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