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
913 S 8TH ST LA PORTE 77571
Elevation
15.39 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
Vacant lot (no building data). No structure to calculate damage for.
Depth-Damage Estimate (Neighborhood Comparison)
$0
Vacant lot (no building data). No structure to calculate damage for.
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: 5.39 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 86% 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)
2.77 million lbs
Extremely High
424.3x more than typical Houston property
≈ 138 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)
2.77 million lbs
Extremely High
574.1x 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)
54 lbs
Above Typical
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)2,768,497 lbs2,768,444 lbs54 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)1,276,032 lbs264,139 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 86% 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):

n-Hexane, Toluene, Ethylene, Methanol, Ammonia

View the full list of 59 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (59 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1n-Hexane110-54-31,028,988 lbs0 lbs1,028,988 lbs
2Toluene108-88-3429,470 lbs0 lbs429,470 lbs
3Ethylene74-85-1420,145 lbs0 lbs420,145 lbs
4Methanol67-56-1265,251 lbs0 lbs265,251 lbs
5Ammonia7664-41-7105,663 lbs0 lbs105,663 lbs
6Acrylonitrile107-13-183,639 lbs0 lbs83,639 lbs
7n-Butyl alcohol71-36-355,640 lbs0 lbs55,640 lbs
8Hydroquinone123-31-942,495 lbs0 lbs42,495 lbs
9Propylene115-07-136,801 lbs0 lbs36,801 lbs
10Methyl isobutyl ketone108-10-136,313 lbs0 lbs36,313 lbs
11Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-033,058 lbs0 lbs33,058 lbs
12Cumene98-82-831,096 lbs0 lbs31,096 lbs
13Xylene (mixed isomers)1330-20-730,648 lbs0 lbs30,648 lbs
14Phenol108-95-230,497 lbs0 lbs30,497 lbs
15Vinyl acetate108-05-422,306 lbs0 lbs22,306 lbs
16Propylene oxide75-56-916,752 lbs0 lbs16,752 lbs
17Styrene100-42-513,938 lbs0 lbs13,938 lbs
18Acetaldehyde75-07-012,256 lbs0 lbs12,256 lbs
19Benzene71-43-210,536 lbs0 lbs10,536 lbs
20Chlorine7782-50-510,430 lbs0 lbs10,430 lbs
21Diphenylamine122-39-45,851 lbs0 lbs5,851 lbs
22Ethylbenzene100-41-45,213 lbs0 lbs5,213 lbs
23Chloroacetic acid79-11-84,175 lbs0 lbs4,175 lbs
24Acrylic acid79-10-73,532 lbs0 lbs3,532 lbs
25Chlorobenzene108-90-73,127 lbs0 lbs3,127 lbs
26Methyl methacrylate80-62-63,050 lbs0 lbs3,050 lbs
27Formaldehyde50-00-02,692 lbs0 lbs2,692 lbs
281,2-Butylene oxide106-88-72,348 lbs0 lbs2,348 lbs
29Dimethylamine124-40-32,009 lbs0 lbs2,009 lbs
30Phosgene75-44-51,958 lbs0 lbs1,958 lbs
31Allyl alcohol107-18-61,820 lbs0 lbs1,820 lbs
32Acetonitrile75-05-81,765 lbs0 lbs1,765 lbs
33Methyl tert-butyl ether1634-04-41,591 lbs0 lbs1,591 lbs
34Triethylamine121-44-81,515 lbs0 lbs1,515 lbs
35Ethyl chloroformate541-41-31,467 lbs0 lbs1,467 lbs
36Methyl chlorocarbonate79-22-11,449 lbs0 lbs1,449 lbs
37sec-Butyl alcohol78-92-21,434 lbs0 lbs1,434 lbs
38Ethylene oxide75-21-81,431 lbs0 lbs1,431 lbs
39tert-Butyl alcohol75-65-01,254 lbs0 lbs1,254 lbs
40Dicyclopentadiene77-73-61,178 lbs0 lbs1,178 lbs
41Maleic anhydride108-31-6965 lbs0 lbs965 lbs
42Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-9597 lbs0 lbs597 lbs
43N,N-Dimethylformamide68-12-2535 lbs0 lbs535 lbs
44Manganese7439-96-5511 lbs0 lbs511 lbs
45Hydrazine302-01-2437 lbs0 lbs437 lbs
46Dichloromethane75-09-2251 lbs0 lbs251 lbs
471,2,4-Trimethylbenzene95-63-670 lbs0 lbs70 lbs
48Zinc compoundsN98235 lbs33 lbs68 lbs
49Naphthalene91-20-363 lbs0 lbs63 lbs
50Ethylene glycol107-21-154 lbs0 lbs54 lbs
51Chromium7440-47-345 lbs0 lbs45 lbs
52Cyclohexane110-82-741 lbs0 lbs41 lbs
53Antimony compoundsN01020 lbs15 lbs35 lbs
54Nitric acid7697-37-214 lbs0 lbs14 lbs
55Phthalic anhydride85-44-913 lbs0 lbs13 lbs
56Antimony And Antimony CompoundsN0105 lbs5 lbs10 lbs
57Butyl acrylate141-32-25 lbs0 lbs5 lbs
58Boron trifluoride7637-07-21 lbs0 lbs1 lbs
59Nickel compoundsN4950 lbs1 lbs1 lbs

Top chemicals released near this property (2024 only):

Methanol, Allyl alcohol, n-Hexane, Toluene, Dimethylamine

View the full list of 43 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (43 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Methanol67-56-111,998 lbs0 lbs439,237 lbs
2Allyl alcohol107-18-696 lbs0 lbs233,588 lbs
3n-Hexane110-54-3116,901 lbs0 lbs132,814 lbs
4Toluene108-88-314,243 lbs0 lbs102,639 lbs
5Dimethylamine124-40-3228 lbs0 lbs91,985 lbs
6Ethylene74-85-172,000 lbs0 lbs72,000 lbs
7Diphenylamine122-39-4105 lbs0 lbs48,731 lbs
8Xylene (mixed isomers)1330-20-7684 lbs0 lbs26,017 lbs
9Chloroacetic acid79-11-8476 lbs0 lbs20,694 lbs
10Styrene100-42-5530 lbs0 lbs15,960 lbs
11tert-Butyl alcohol75-65-026 lbs0 lbs15,456 lbs
12Propylene115-07-110,035 lbs0 lbs10,035 lbs
13Ammonia7664-41-78,690 lbs0 lbs8,916 lbs
14Dicyclopentadiene77-73-697 lbs0 lbs7,551 lbs
15Vinyl acetate108-05-42,418 lbs0 lbs7,117 lbs
16Phenol108-95-21,875 lbs0 lbs6,506 lbs
17Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-06,255 lbs0 lbs6,255 lbs
18Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0900 lbs0 lbs5,055 lbs
19Hydroquinone123-31-94,862 lbs0 lbs4,862 lbs
20n-Butyl alcohol71-36-31,017 lbs0 lbs4,633 lbs
21Methyl isobutyl ketone108-10-13,997 lbs0 lbs3,997 lbs
22sec-Butyl alcohol78-92-293 lbs0 lbs3,447 lbs
23Cumene98-82-82,611 lbs0 lbs2,611 lbs
24Acetaldehyde75-07-0494 lbs0 lbs1,132 lbs
25Benzene71-43-21,090 lbs0 lbs1,090 lbs
26Chlorine7782-50-5961 lbs0 lbs961 lbs
27Propylene oxide75-56-9430 lbs0 lbs430 lbs
28Ethylene oxide75-21-8420 lbs0 lbs420 lbs
29Methyl methacrylate80-62-6387 lbs0 lbs387 lbs
30Naphthalene91-20-312 lbs0 lbs371 lbs
31Ethylbenzene100-41-4271 lbs0 lbs283 lbs
32Acrylic acid79-10-7186 lbs0 lbs192 lbs
33Maleic anhydride108-31-6178 lbs0 lbs178 lbs
34Formaldehyde50-00-0151 lbs0 lbs154 lbs
35Ethyl chloroformate541-41-3120 lbs0 lbs120 lbs
361,2-Butylene oxide106-88-752 lbs0 lbs52 lbs
37Cyclohexane110-82-741 lbs0 lbs41 lbs
38Hydrazine302-01-239 lbs0 lbs39 lbs
39Phosgene75-44-527 lbs0 lbs27 lbs
401,2,4-Trimethylbenzene95-63-625 lbs0 lbs25 lbs
41Methyl chlorocarbonate79-22-113 lbs0 lbs13 lbs
42Ethylene glycol107-21-13 lbs0 lbs9 lbs
43Nitric acid7697-37-22 lbs0 lbs2 lbs

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