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
303 CRESCENT VIEW ST LA PORTE 77571
Building Size
1,120 sqft
Total structure area from HCAD building records.
Elevation
10.31 ft
Height above sea level from USGS data.
FEMA Flood Zone
AE
High Risk - 1% annual chance with established base flood elevation
Overall Risk
Moderate
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
Moderate
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: 0.31 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.

  • This property is in a high-risk flood zone. Flood insurance is required for mortgages.
  • Consider flood mitigation measures like elevated utilities and flood vents.
  • 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 82% 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)
1.43 million lbs
Extremely High
218.6x more than typical Houston property
≈ 71 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)
1.43 million lbs
Extremely High
295.7x 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)
479 lbs
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)1,426,204 lbs1,425,725 lbs479 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)1,294,222 lbs107,088 lbs5 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 82% 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):

Ammonia, Ethylene, Methanol, Vinyl acetate, Cyclohexane

View the full list of 51 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (51 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Ammonia7664-41-7335,424 lbs0 lbs335,424 lbs
2Ethylene74-85-1323,747 lbs0 lbs323,747 lbs
3Methanol67-56-1304,344 lbs55 lbs304,399 lbs
4Vinyl acetate108-05-4120,415 lbs0 lbs120,415 lbs
5Cyclohexane110-82-7102,641 lbs0 lbs102,641 lbs
6Propylene oxide75-56-995,696 lbs0 lbs95,696 lbs
7Certain glycol ethersN23034,372 lbs0 lbs34,372 lbs
8n-Hexane110-54-317,593 lbs0 lbs17,593 lbs
9Isoprene78-79-515,828 lbs0 lbs15,828 lbs
101,3-Butadiene106-99-012,674 lbs0 lbs12,674 lbs
11Xylene (mixed isomers)1330-20-78,223 lbs0 lbs8,223 lbs
12Styrene100-42-55,569 lbs0 lbs5,569 lbs
13Formaldehyde50-00-05,143 lbs0 lbs5,143 lbs
141,2,4-Trimethylbenzene95-63-64,474 lbs0 lbs4,474 lbs
15Acrylic acid79-10-73,532 lbs0 lbs3,532 lbs
16Toluene108-88-33,240 lbs0 lbs3,240 lbs
17Methyl methacrylate80-62-63,050 lbs0 lbs3,050 lbs
181,4-Dioxane123-91-12,644 lbs0 lbs2,644 lbs
19Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-02,610 lbs0 lbs2,610 lbs
20Acetaldehyde75-07-02,587 lbs0 lbs2,587 lbs
21Butyl acrylate141-32-22,517 lbs0 lbs2,517 lbs
221,2-Butylene oxide106-88-72,348 lbs0 lbs2,348 lbs
23Chlorine7782-50-52,246 lbs0 lbs2,246 lbs
24NonylphenolN5301,974 lbs0 lbs1,974 lbs
25Allyl alcohol107-18-61,820 lbs0 lbs1,820 lbs
26Ethylene oxide75-21-81,600 lbs0 lbs1,600 lbs
27Naphthalene91-20-31,572 lbs0 lbs1,572 lbs
28Nitric acid7697-37-21,405 lbs0 lbs1,405 lbs
29tert-Butyl alcohol75-65-01,254 lbs0 lbs1,254 lbs
30Dicyclopentadiene77-73-61,178 lbs0 lbs1,178 lbs
31Ethylene glycol107-21-11,132 lbs0 lbs1,132 lbs
32Nonylphenol EthoxylatesN535773 lbs0 lbs773 lbs
33Ethylbenzene100-41-4728 lbs0 lbs728 lbs
34Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-9597 lbs0 lbs597 lbs
35Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs370 lbs370 lbs
36Benzyl chloride100-44-7228 lbs0 lbs228 lbs
37n-Butyl alcohol71-36-3114 lbs0 lbs114 lbs
38Diethanolamine111-42-2106 lbs0 lbs106 lbs
39Diethyl sulfate64-67-585 lbs0 lbs85 lbs
40Zinc compoundsN98248 lbs33 lbs81 lbs
41Epichlorohydrin106-89-842 lbs0 lbs42 lbs
42Antimony compoundsN01020 lbs15 lbs35 lbs
43Acetonitrile75-05-833 lbs0 lbs33 lbs
44Bis(2-chloroethyl) ether111-44-426 lbs0 lbs26 lbs
45Formic acid64-18-621 lbs0 lbs21 lbs
462,4-Dimethylphenol105-67-917 lbs0 lbs17 lbs
47Cumene98-82-815 lbs0 lbs15 lbs
48Phthalic anhydride85-44-913 lbs0 lbs13 lbs
49Antimony And Antimony CompoundsN0105 lbs5 lbs10 lbs
501,3-Phenylenediamine108-45-22 lbs0 lbs2 lbs
51Nickel compoundsN4950 lbs1 lbs1 lbs

Top chemicals released near this property (2024 only):

Methanol, Allyl alcohol, Vinyl acetate, Toluene, Nickel compounds

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)
1Methanol67-56-115,391 lbs5 lbs497,466 lbs
2Allyl alcohol107-18-696 lbs0 lbs233,588 lbs
3Vinyl acetate108-05-411,698 lbs0 lbs121,509 lbs
4Toluene108-88-3258 lbs0 lbs79,083 lbs
5Nickel compoundsN4950 lbs0 lbs74,741 lbs
6Xylene (mixed isomers)1330-20-7451 lbs0 lbs64,433 lbs
7Ammonia7664-41-730,863 lbs0 lbs31,185 lbs
8Cyclohexane110-82-78,101 lbs0 lbs29,411 lbs
9Styrene100-42-5424 lbs0 lbs29,331 lbs
10Ethylene74-85-124,034 lbs0 lbs24,034 lbs
11Acetaldehyde75-07-02 lbs0 lbs21,995 lbs
12n-Hexane110-54-3521 lbs0 lbs17,769 lbs
13tert-Butyl alcohol75-65-026 lbs0 lbs15,456 lbs
14Ethylbenzene100-41-494 lbs0 lbs9,983 lbs
15Propylene oxide75-56-97,974 lbs0 lbs7,977 lbs
16Dicyclopentadiene77-73-697 lbs0 lbs7,551 lbs
17Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0900 lbs0 lbs5,055 lbs
18Acetonitrile75-05-824 lbs0 lbs4,091 lbs
19Naphthalene91-20-3223 lbs0 lbs3,764 lbs
20Ethylene glycol107-21-1106 lbs0 lbs2,856 lbs
21NonylphenolN530551 lbs0 lbs2,678 lbs
22Isoprene78-79-52,125 lbs0 lbs2,125 lbs
23Certain glycol ethersN230421 lbs0 lbs2,084 lbs
241,2,4-Trimethylbenzene95-63-6599 lbs0 lbs1,996 lbs
251,3-Butadiene106-99-01,187 lbs0 lbs1,187 lbs
26Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs0 lbs551 lbs
27Ethylene oxide75-21-8462 lbs0 lbs462 lbs
28Methyl methacrylate80-62-6387 lbs0 lbs387 lbs
29Benzyl chloride100-44-7119 lbs0 lbs379 lbs
30Formaldehyde50-00-0145 lbs0 lbs263 lbs
31Nitric acid7697-37-2217 lbs0 lbs217 lbs
32Acrylic acid79-10-7186 lbs0 lbs192 lbs
331,4-Dioxane123-91-1126 lbs0 lbs126 lbs
34Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-0119 lbs0 lbs119 lbs
35n-Butyl alcohol71-36-310 lbs0 lbs95 lbs
361,2-Butylene oxide106-88-752 lbs0 lbs52 lbs
37Antimony And Antimony CompoundsN0100 lbs0 lbs33 lbs

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