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
3021 CARLISLE ST LA PORTE 77571
Building Size
1,200 sqft
Total structure area from HCAD building records.
Elevation
11.38 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: 1.38 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)
1.41 million lbs
Extremely High
215.5x more than typical Houston property
≈ 70 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)
1.41 million lbs
Extremely High
291.4x 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)
566 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)1,405,793 lbs1,405,227 lbs566 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)967,828 lbs104,443 lbs51 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):

Ethylene, Methanol, Acrylic acid, Ammonia, Vinyl acetate

View the full list of 46 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (46 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Ethylene74-85-1323,747 lbs0 lbs323,747 lbs
2Methanol67-56-1286,119 lbs55 lbs286,174 lbs
3Acrylic acid79-10-7247,770 lbs0 lbs247,770 lbs
4Ammonia7664-41-7204,698 lbs0 lbs204,698 lbs
5Vinyl acetate108-05-4120,415 lbs0 lbs120,415 lbs
6Cyclohexane110-82-7102,600 lbs0 lbs102,600 lbs
7Certain glycol ethersN23034,364 lbs0 lbs34,364 lbs
8Isoprene78-79-515,828 lbs0 lbs15,828 lbs
91,3-Butadiene106-99-012,674 lbs0 lbs12,674 lbs
10Propylene115-07-19,096 lbs0 lbs9,096 lbs
11Formaldehyde50-00-07,585 lbs0 lbs7,585 lbs
12Trade SecretTRD SECRT5,905 lbs88 lbs5,993 lbs
131,2,4-Trimethylbenzene95-63-64,474 lbs0 lbs4,474 lbs
14Styrene100-42-54,016 lbs0 lbs4,016 lbs
15Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-02,610 lbs0 lbs2,610 lbs
16Xylene (mixed isomers)1330-20-72,598 lbs0 lbs2,598 lbs
17Acetaldehyde75-07-02,587 lbs0 lbs2,587 lbs
18Butyl acrylate141-32-22,512 lbs0 lbs2,512 lbs
19Chlorine7782-50-52,246 lbs0 lbs2,246 lbs
20Formic acid64-18-62,017 lbs0 lbs2,017 lbs
21NonylphenolN5301,974 lbs0 lbs1,974 lbs
22n-Hexane110-54-31,735 lbs0 lbs1,735 lbs
23Naphthalene91-20-31,572 lbs0 lbs1,572 lbs
24Nitric acid7697-37-21,405 lbs0 lbs1,405 lbs
25Ethylene glycol107-21-1969 lbs0 lbs969 lbs
26Nonylphenol EthoxylatesN535773 lbs0 lbs773 lbs
27Ethylbenzene100-41-4728 lbs0 lbs728 lbs
28Maleic anhydride108-31-6534 lbs0 lbs534 lbs
29Acrolein107-02-8402 lbs0 lbs402 lbs
30Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs370 lbs370 lbs
31Hydroquinone123-31-9355 lbs0 lbs355 lbs
32Benzyl chloride100-44-7228 lbs0 lbs228 lbs
33Toluene108-88-3201 lbs0 lbs201 lbs
34Diethanolamine111-42-2106 lbs0 lbs106 lbs
35Diethyl sulfate64-67-585 lbs0 lbs85 lbs
36Zinc compoundsN98248 lbs33 lbs81 lbs
37Propylene oxide75-56-953 lbs0 lbs53 lbs
38Epichlorohydrin106-89-842 lbs0 lbs42 lbs
39n-Butyl alcohol71-36-337 lbs0 lbs37 lbs
40Antimony compoundsN01020 lbs15 lbs35 lbs
41Acetonitrile75-05-833 lbs0 lbs33 lbs
42Bis(2-chloroethyl) ether111-44-426 lbs0 lbs26 lbs
432,4-Dimethylphenol105-67-917 lbs0 lbs17 lbs
44Cumene98-82-815 lbs0 lbs15 lbs
45Antimony And Antimony CompoundsN0105 lbs5 lbs10 lbs
46Ethylene oxide75-21-85 lbs0 lbs5 lbs

Top chemicals released near this property (2024 only):

Methanol, Acrylic acid, Vinyl acetate, Nickel compounds, Xylene (mixed isomers)

View the full list of 35 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (35 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Methanol67-56-115,362 lbs5 lbs461,726 lbs
2Acrylic acid79-10-720,841 lbs0 lbs124,064 lbs
3Vinyl acetate108-05-411,698 lbs0 lbs121,509 lbs
4Nickel compoundsN4950 lbs0 lbs74,741 lbs
5Xylene (mixed isomers)1330-20-7363 lbs0 lbs39,094 lbs
6Cyclohexane110-82-78,060 lbs0 lbs29,370 lbs
7Ethylene74-85-124,034 lbs0 lbs24,034 lbs
8Acetaldehyde75-07-02 lbs0 lbs21,995 lbs
9Ammonia7664-41-716,568 lbs0 lbs16,568 lbs
10Styrene100-42-5268 lbs0 lbs13,745 lbs
11Ethylbenzene100-41-494 lbs0 lbs9,983 lbs
12Acetonitrile75-05-824 lbs0 lbs4,091 lbs
13Naphthalene91-20-3223 lbs0 lbs3,764 lbs
14Toluene108-88-362 lbs0 lbs3,288 lbs
15Ethylene glycol107-21-196 lbs0 lbs2,840 lbs
16NonylphenolN530551 lbs0 lbs2,678 lbs
17Isoprene78-79-52,125 lbs0 lbs2,125 lbs
18Certain glycol ethersN230421 lbs0 lbs2,084 lbs
191,2,4-Trimethylbenzene95-63-6599 lbs0 lbs1,996 lbs
20n-Hexane110-54-3160 lbs0 lbs1,995 lbs
21Formic acid64-18-6175 lbs0 lbs1,197 lbs
221,3-Butadiene106-99-01,187 lbs0 lbs1,187 lbs
23Formaldehyde50-00-0296 lbs0 lbs925 lbs
24Propylene115-07-1700 lbs0 lbs700 lbs
25Trade SecretTRD SECRT0 lbs46 lbs581 lbs
26Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs0 lbs551 lbs
27Benzyl chloride100-44-7119 lbs0 lbs379 lbs
28Nitric acid7697-37-2217 lbs0 lbs217 lbs
29Hydroquinone123-31-923 lbs0 lbs185 lbs
30Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-0119 lbs0 lbs119 lbs
31Acrolein107-02-828 lbs0 lbs38 lbs
32Antimony And Antimony CompoundsN0100 lbs0 lbs33 lbs
33Maleic anhydride108-31-626 lbs0 lbs26 lbs
34Propylene oxide75-56-91 lbs0 lbs1 lbs
35Ethylene oxide75-21-81 lbs0 lbs1 lbs

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