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
12211 PORT RD SEABROOK 77586
Elevation
15.16 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: 5.16 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 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)
3.95 million lbs
Extremely High
604.7x more than typical Houston property
≈ 197 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)
3.94 million lbs
Extremely High
817.9x 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)
788 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)3,945,159 lbs3,944,370 lbs788 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)2,028,383 lbs340,271 lbs81 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):

tert-Butyl alcohol, Propylene, Ethylene, Methanol, Propylene oxide

View the full list of 67 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (67 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1tert-Butyl alcohol75-65-0750,524 lbs0 lbs750,524 lbs
2Propylene115-07-1566,101 lbs0 lbs566,101 lbs
3Ethylene74-85-1502,426 lbs0 lbs502,426 lbs
4Methanol67-56-1478,125 lbs55 lbs478,180 lbs
5Propylene oxide75-56-9293,670 lbs0 lbs293,670 lbs
6Ammonia7664-41-7265,454 lbs0 lbs265,454 lbs
7Acrylic acid79-10-7247,770 lbs0 lbs247,770 lbs
8Benzene71-43-2129,270 lbs0 lbs129,270 lbs
9Vinyl acetate108-05-4120,415 lbs0 lbs120,415 lbs
101,3-Butadiene106-99-0105,073 lbs0 lbs105,073 lbs
11Cyclohexane110-82-7102,600 lbs0 lbs102,600 lbs
12Ethylbenzene100-41-466,752 lbs0 lbs66,752 lbs
13Toluene108-88-351,603 lbs0 lbs51,603 lbs
14Styrene100-42-551,523 lbs0 lbs51,523 lbs
15Isoprene78-79-547,793 lbs0 lbs47,793 lbs
16Certain glycol ethersN23034,372 lbs0 lbs34,372 lbs
17Molybdenum trioxide1313-27-526,754 lbs0 lbs26,754 lbs
18Dicyclopentadiene77-73-620,009 lbs0 lbs20,009 lbs
19Xylene (mixed isomers)1330-20-714,870 lbs0 lbs14,870 lbs
20Formaldehyde50-00-07,717 lbs0 lbs7,717 lbs
21Naphthalene91-20-36,107 lbs0 lbs6,107 lbs
22Trade SecretTRD SECRT5,905 lbs88 lbs5,993 lbs
23Dimethylamine124-40-35,764 lbs0 lbs5,764 lbs
24Maleic anhydride108-31-65,267 lbs0 lbs5,267 lbs
25Formic acid64-18-64,772 lbs0 lbs4,772 lbs
261,2,4-Trimethylbenzene95-63-64,474 lbs0 lbs4,474 lbs
27Butyl acrylate141-32-24,451 lbs0 lbs4,451 lbs
28Propyleneimine75-55-83,701 lbs0 lbs3,701 lbs
29Acetaldehyde75-07-03,091 lbs0 lbs3,091 lbs
301,4-Dioxane123-91-12,644 lbs0 lbs2,644 lbs
31Chlorine7782-50-52,246 lbs0 lbs2,246 lbs
32Acrylonitrile107-13-11,977 lbs0 lbs1,977 lbs
33NonylphenolN5301,974 lbs0 lbs1,974 lbs
34n-Hexane110-54-31,735 lbs0 lbs1,735 lbs
35Nitric acid7697-37-21,405 lbs0 lbs1,405 lbs
36Epichlorohydrin106-89-81,042 lbs0 lbs1,042 lbs
37o-Xylene95-47-6815 lbs0 lbs815 lbs
38Nonylphenol EthoxylatesN535773 lbs0 lbs773 lbs
39Ethylene glycol107-21-1605 lbs0 lbs605 lbs
40Chlorobenzene108-90-7559 lbs0 lbs559 lbs
41Acrolein107-02-8402 lbs0 lbs402 lbs
42Cumene98-82-8384 lbs0 lbs384 lbs
43Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs370 lbs370 lbs
44Hydroquinone123-31-9355 lbs0 lbs355 lbs
45Zinc compoundsN982103 lbs146 lbs249 lbs
46Benzyl chloride100-44-7228 lbs0 lbs228 lbs
47Antimony And Antimony CompoundsN01090 lbs82 lbs171 lbs
48Ethylene oxide75-21-8169 lbs0 lbs169 lbs
49Diethanolamine111-42-2106 lbs0 lbs106 lbs
50Antimony compoundsN01064 lbs40 lbs104 lbs
51Diethyl sulfate64-67-585 lbs0 lbs85 lbs
52n-Butyl alcohol71-36-368 lbs0 lbs68 lbs
53Lead And Lead CompoundsN42032 lbs3 lbs36 lbs
54Acetonitrile75-05-833 lbs0 lbs33 lbs
55Bis(2-chloroethyl) ether111-44-426 lbs0 lbs26 lbs
56Zinc (fume or dust)7440-66-626 lbs0 lbs26 lbs
572,4-Dimethylphenol105-67-917 lbs0 lbs17 lbs
58Lead compoundsN42015 lbs1 lbs16 lbs
59Triethylamine121-44-810 lbs0 lbs15 lbs
60Cadmium compoundsN07811 lbs0 lbs11 lbs
61Chromium7440-47-37 lbs2 lbs9 lbs
62Methyl acrylate96-33-36 lbs0 lbs6 lbs
631,3-Phenylenediamine108-45-22 lbs0 lbs2 lbs
64Lead7439-92-12 lbs0 lbs2 lbs
65Biphenyl92-52-42 lbs0 lbs2 lbs
66Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0901 lbs0 lbs2 lbs
67Chromium compounds (except for chromite ore mined in the Transvaal Region)N0901 lbs0 lbs1 lbs

Top chemicals released near this property (2024 only):

Methanol, tert-Butyl alcohol, Acrylic acid, Vinyl acetate, Nickel compounds

View the full list of 48 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (48 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Methanol67-56-123,254 lbs5 lbs684,449 lbs
2tert-Butyl alcohol75-65-0101,671 lbs0 lbs635,087 lbs
3Acrylic acid79-10-720,841 lbs0 lbs124,064 lbs
4Vinyl acetate108-05-411,698 lbs0 lbs121,509 lbs
5Nickel compoundsN4950 lbs0 lbs74,741 lbs
6Toluene108-88-32,767 lbs0 lbs47,505 lbs
7Propylene oxide75-56-922,691 lbs0 lbs40,716 lbs
8Xylene (mixed isomers)1330-20-7586 lbs0 lbs40,489 lbs
9Ethylene74-85-140,324 lbs0 lbs40,324 lbs
10Propylene115-07-139,502 lbs0 lbs39,878 lbs
11Cyclohexane110-82-78,060 lbs0 lbs29,370 lbs
12Ammonia7664-41-723,068 lbs0 lbs23,164 lbs
13Acetaldehyde75-07-02 lbs0 lbs21,995 lbs
14Styrene100-42-53,598 lbs0 lbs17,737 lbs
15Ethylbenzene100-41-44,042 lbs0 lbs15,706 lbs
16Dicyclopentadiene77-73-62,368 lbs0 lbs14,402 lbs
17Isoprene78-79-512,309 lbs0 lbs12,309 lbs
18Benzene71-43-29,442 lbs0 lbs9,998 lbs
191,3-Butadiene106-99-04,450 lbs0 lbs4,450 lbs
20Acetonitrile75-05-824 lbs0 lbs4,091 lbs
21Naphthalene91-20-3526 lbs0 lbs4,066 lbs
22Molybdenum trioxide1313-27-53,114 lbs0 lbs3,114 lbs
23Ethylene glycol107-21-191 lbs0 lbs2,920 lbs
24NonylphenolN530551 lbs0 lbs2,678 lbs
25Certain glycol ethersN230421 lbs0 lbs2,084 lbs
261,2,4-Trimethylbenzene95-63-6599 lbs0 lbs1,996 lbs
27n-Hexane110-54-3160 lbs0 lbs1,995 lbs
28Formic acid64-18-6175 lbs0 lbs1,197 lbs
29Maleic anhydride108-31-61,173 lbs0 lbs1,173 lbs
30Acrylonitrile107-13-1879 lbs0 lbs1,029 lbs
31Formaldehyde50-00-0296 lbs0 lbs936 lbs
32Butyl acrylate141-32-2848 lbs0 lbs848 lbs
33Trade SecretTRD SECRT0 lbs46 lbs581 lbs
34Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs0 lbs551 lbs
35Benzyl chloride100-44-7119 lbs0 lbs379 lbs
36Nitric acid7697-37-2217 lbs0 lbs217 lbs
37Hydroquinone123-31-923 lbs0 lbs185 lbs
381,4-Dioxane123-91-1126 lbs0 lbs126 lbs
39Chlorobenzene108-90-7100 lbs0 lbs100 lbs
40Antimony And Antimony CompoundsN01026 lbs19 lbs62 lbs
41Ethylene oxide75-21-842 lbs0 lbs42 lbs
42Acrolein107-02-828 lbs0 lbs38 lbs
43Zinc compoundsN98213 lbs10 lbs33 lbs
44Propyleneimine75-55-832 lbs0 lbs32 lbs
45Zinc (fume or dust)7440-66-69 lbs0 lbs9 lbs
46Chromium7440-47-34 lbs1 lbs5 lbs
47Lead And Lead CompoundsN4202 lbs1 lbs3 lbs
48Methyl acrylate96-33-32 lbs0 lbs2 lbs

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