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
101 BIRDIE CIR LA PORTE 77571
Building Size
3,726 sqft
Total structure area from HCAD building records.
Elevation
9.08 ft
Height above sea level from USGS data.
FEMA Flood Zone
AE
High Risk - 1% annual chance with established base flood elevation
Overall Risk
High
Property flooded at 0.9ft depth. Risk based on flood depth at structure.

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
High
Flood Depth
0.92 ft ±0.5 ft
Depth of water above ground 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
Based on HCAD building value of $321,837 (3,726 sqft). Using U.S. Army Corps of Engineers depth-damage curves.
Depth-Damage Estimate (Neighborhood Comparison)
$0
No neighborhood valuation estimate available. Building exists (3,726 sqft) but no comparable neighborhood data found.
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 Flooded
Flood Depth: 0.92 feet
Severity: Minor

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.
  • Simulation shows flooding at current water level - review property drainage and consider mitigation.

🏭 Part 2: Industrial Pollution Exposure

Property Pollution Ranking
High
Higher pollution than 88% 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)
4.82 million lbs
Extremely High
738.8x more than typical Houston property
≈ 241 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)
4.82 million lbs
Extremely High
999.5x 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)4,820,332 lbs4,819,854 lbs479 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)2,354,407 lbs441,404 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 88% 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, Ethylene, Toluene, Methanol, Ammonia

View the full list of 74 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (74 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1n-Hexane110-54-31,219,033 lbs0 lbs1,219,033 lbs
2Ethylene74-85-1743,892 lbs0 lbs743,892 lbs
3Toluene108-88-3711,522 lbs0 lbs711,522 lbs
4Methanol67-56-1565,766 lbs55 lbs565,821 lbs
5Ammonia7664-41-7353,419 lbs0 lbs353,419 lbs
6Vinyl acetate108-05-4142,721 lbs0 lbs142,721 lbs
7Titanium tetrachloride7550-45-0108,195 lbs0 lbs108,195 lbs
8Cyclohexane110-82-7102,641 lbs0 lbs102,641 lbs
9Propylene oxide75-56-995,696 lbs0 lbs95,696 lbs
101,3-Butadiene106-99-089,666 lbs0 lbs89,666 lbs
11Acrylonitrile107-13-183,639 lbs0 lbs83,639 lbs
12n-Butyl alcohol71-36-355,708 lbs0 lbs55,708 lbs
13Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-050,961 lbs0 lbs50,961 lbs
14Propylene115-07-148,450 lbs0 lbs48,450 lbs
15Isoprene78-79-547,793 lbs0 lbs47,793 lbs
16Hydroquinone123-31-942,495 lbs0 lbs42,495 lbs
17Ethylene glycol107-21-137,504 lbs0 lbs37,504 lbs
18Methyl isobutyl ketone108-10-136,313 lbs0 lbs36,313 lbs
19Xylene (mixed isomers)1330-20-735,072 lbs0 lbs35,072 lbs
20Certain glycol ethersN23034,372 lbs0 lbs34,372 lbs
21Cumene98-82-831,111 lbs0 lbs31,111 lbs
22Phenol108-95-230,497 lbs0 lbs30,497 lbs
23Styrene100-42-517,954 lbs0 lbs17,954 lbs
24Acetaldehyde75-07-014,843 lbs0 lbs14,843 lbs
25Chlorine7782-50-512,676 lbs0 lbs12,676 lbs
26Benzene71-43-210,536 lbs0 lbs10,536 lbs
27Epichlorohydrin106-89-88,484 lbs0 lbs8,484 lbs
28Formaldehyde50-00-07,959 lbs0 lbs7,959 lbs
29Dimethylamine124-40-37,773 lbs0 lbs7,773 lbs
30Ethylbenzene100-41-45,941 lbs0 lbs5,941 lbs
31Diphenylamine122-39-45,851 lbs0 lbs5,851 lbs
32Dibutyl phthalate84-74-25,792 lbs0 lbs5,792 lbs
33Maleic anhydride108-31-65,698 lbs0 lbs5,698 lbs
341,2,4-Trimethylbenzene95-63-64,544 lbs0 lbs4,544 lbs
35tert-Butyl alcohol75-65-04,519 lbs0 lbs4,519 lbs
36Chloroacetic acid79-11-84,175 lbs0 lbs4,175 lbs
37Propyleneimine75-55-83,701 lbs0 lbs3,701 lbs
38Acrylic acid79-10-73,532 lbs0 lbs3,532 lbs
39Methyl methacrylate80-62-63,050 lbs0 lbs3,050 lbs
401,4-Dioxane123-91-12,644 lbs0 lbs2,644 lbs
41Butyl acrylate141-32-22,517 lbs0 lbs2,517 lbs
421,2-Butylene oxide106-88-72,348 lbs0 lbs2,348 lbs
43NonylphenolN5301,974 lbs0 lbs1,974 lbs
44Phosgene75-44-51,958 lbs0 lbs1,958 lbs
45Allyl alcohol107-18-61,820 lbs0 lbs1,820 lbs
46Naphthalene91-20-31,635 lbs0 lbs1,635 lbs
47Ethylene oxide75-21-81,600 lbs0 lbs1,600 lbs
48Ethyl chloroformate541-41-31,467 lbs0 lbs1,467 lbs
49Methyl chlorocarbonate79-22-11,449 lbs0 lbs1,449 lbs
50sec-Butyl alcohol78-92-21,434 lbs0 lbs1,434 lbs
51Nitric acid7697-37-21,419 lbs0 lbs1,419 lbs
52Dicyclopentadiene77-73-61,387 lbs0 lbs1,387 lbs
53Nonylphenol EthoxylatesN535773 lbs0 lbs773 lbs
54Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-9597 lbs0 lbs597 lbs
55Hydrazine302-01-2437 lbs0 lbs437 lbs
56Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs370 lbs370 lbs
57Benzyl chloride100-44-7228 lbs0 lbs228 lbs
58Di(2-ethylhexyl) phthalate117-81-7222 lbs0 lbs222 lbs
59Diethanolamine111-42-2106 lbs0 lbs106 lbs
60Diethyl sulfate64-67-585 lbs0 lbs85 lbs
61Zinc compoundsN98248 lbs33 lbs81 lbs
62Phthalic anhydride85-44-940 lbs0 lbs40 lbs
63Antimony compoundsN01020 lbs15 lbs35 lbs
64N,N-Dimethylformamide68-12-234 lbs0 lbs34 lbs
65Acetonitrile75-05-833 lbs0 lbs33 lbs
66Bis(2-chloroethyl) ether111-44-426 lbs0 lbs26 lbs
67Formic acid64-18-621 lbs0 lbs21 lbs
682,4-Dimethylphenol105-67-917 lbs0 lbs17 lbs
69Triethylamine121-44-810 lbs0 lbs15 lbs
70Antimony And Antimony CompoundsN0105 lbs5 lbs10 lbs
711,3-Phenylenediamine108-45-22 lbs0 lbs2 lbs
72Lead7439-92-12 lbs0 lbs2 lbs
73Boron trifluoride7637-07-21 lbs0 lbs1 lbs
74Nickel compoundsN4950 lbs1 lbs1 lbs

Top chemicals released near this property (2024 only):

Methanol, Allyl alcohol, Toluene, n-Hexane, Vinyl acetate

View the full list of 60 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (60 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Methanol67-56-130,608 lbs5 lbs980,564 lbs
2Allyl alcohol107-18-696 lbs0 lbs233,588 lbs
3Toluene108-88-339,610 lbs0 lbs172,406 lbs
4n-Hexane110-54-3135,987 lbs0 lbs153,735 lbs
5Vinyl acetate108-05-414,116 lbs0 lbs128,626 lbs
6Ethylene74-85-196,034 lbs0 lbs96,034 lbs
7Dimethylamine124-40-3228 lbs0 lbs91,985 lbs
8Nickel compoundsN4950 lbs0 lbs74,741 lbs
9Xylene (mixed isomers)1330-20-71,270 lbs0 lbs66,506 lbs
10Diphenylamine122-39-4105 lbs0 lbs48,731 lbs
11tert-Butyl alcohol75-65-0986 lbs0 lbs34,701 lbs
12Ammonia7664-41-731,758 lbs0 lbs32,080 lbs
13Styrene100-42-5798 lbs0 lbs29,705 lbs
14Cyclohexane110-82-78,101 lbs0 lbs29,411 lbs
15Acetaldehyde75-07-0496 lbs0 lbs23,127 lbs
16Chloroacetic acid79-11-8476 lbs0 lbs20,694 lbs
17Isoprene78-79-512,309 lbs0 lbs12,309 lbs
18Propylene115-07-110,982 lbs0 lbs10,982 lbs
19Titanium tetrachloride7550-45-010,755 lbs0 lbs10,755 lbs
20Ethylbenzene100-41-4365 lbs0 lbs10,266 lbs
21Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-08,214 lbs0 lbs8,214 lbs
22Propylene oxide75-56-97,974 lbs0 lbs7,977 lbs
23Dicyclopentadiene77-73-697 lbs0 lbs7,585 lbs
24Phenol108-95-21,875 lbs0 lbs6,506 lbs
25Ethylene glycol107-21-13,258 lbs0 lbs6,008 lbs
26Vanadium compoundsN7700 lbs0 lbs5,540 lbs
27Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0900 lbs0 lbs5,055 lbs
28Hydroquinone123-31-94,862 lbs0 lbs4,862 lbs
29n-Butyl alcohol71-36-31,017 lbs0 lbs4,633 lbs
30Naphthalene91-20-3235 lbs0 lbs4,135 lbs
31Acetonitrile75-05-824 lbs0 lbs4,091 lbs
32Methyl isobutyl ketone108-10-13,997 lbs0 lbs3,997 lbs
331,3-Butadiene106-99-03,642 lbs0 lbs3,642 lbs
34sec-Butyl alcohol78-92-293 lbs0 lbs3,447 lbs
35NonylphenolN530551 lbs0 lbs2,678 lbs
36Cumene98-82-82,611 lbs0 lbs2,611 lbs
37Certain glycol ethersN230421 lbs0 lbs2,084 lbs
381,2,4-Trimethylbenzene95-63-6624 lbs0 lbs2,021 lbs
39Maleic anhydride108-31-61,325 lbs0 lbs1,325 lbs
40Benzene71-43-21,090 lbs0 lbs1,090 lbs
41Dibutyl phthalate84-74-2496 lbs0 lbs1,073 lbs
42Chlorine7782-50-5961 lbs0 lbs961 lbs
43Epichlorohydrin106-89-8643 lbs0 lbs643 lbs
44Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs0 lbs551 lbs
45Ethylene oxide75-21-8462 lbs0 lbs462 lbs
46Formaldehyde50-00-0296 lbs0 lbs417 lbs
47Methyl methacrylate80-62-6387 lbs0 lbs387 lbs
48Benzyl chloride100-44-7119 lbs0 lbs379 lbs
49Di(2-ethylhexyl) phthalate117-81-7222 lbs0 lbs222 lbs
50Nitric acid7697-37-2219 lbs0 lbs219 lbs
51Acrylic acid79-10-7186 lbs0 lbs192 lbs
521,4-Dioxane123-91-1126 lbs0 lbs126 lbs
53Ethyl chloroformate541-41-3120 lbs0 lbs120 lbs
541,2-Butylene oxide106-88-752 lbs0 lbs52 lbs
55Hydrazine302-01-239 lbs0 lbs39 lbs
56Antimony And Antimony CompoundsN0100 lbs0 lbs33 lbs
57Propyleneimine75-55-832 lbs0 lbs32 lbs
58Phosgene75-44-527 lbs0 lbs27 lbs
59Phthalic anhydride85-44-914 lbs0 lbs14 lbs
60Methyl chlorocarbonate79-22-113 lbs0 lbs13 lbs

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