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
10001 PORTER RD LA PORTE 77571
Elevation
32.17 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: 22.17 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
Very High
Higher pollution than 93% 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)
16.23 million lbs
Extremely High
2487.7x more than typical Houston property
≈ 812 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)
9.4 million lbs
Extremely High
1948.9x 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)
6.83 million lbs
Extremely 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)16,230,715 lbs9,398,403 lbs6,832,312 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)2,095,535 lbs840,843 lbs673,251 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 93% of Houston homes
Each bar's width represents the percentage of Houston homes in that pollution range. This property ranks in the 0-9th percentile (top 10% most polluted).

Top chemicals released near this property (past 10 years):

Nitrate compounds (water dissociable; reportable only when in aqueous solution), Ethylene, Propylene, Methanol, Vinyl acetate

View the full list of 80 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (80 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs6,134,896 lbs6,134,896 lbs
2Ethylene74-85-13,046,609 lbs0 lbs3,046,609 lbs
3Propylene115-07-12,893,911 lbs0 lbs2,893,911 lbs
4Methanol67-56-1480,229 lbs653,326 lbs1,133,555 lbs
5Vinyl acetate108-05-41,056,100 lbs5,684 lbs1,061,784 lbs
6Ammonia7664-41-7345,454 lbs10,775 lbs777,709 lbs
7n-Hexane110-54-3612,115 lbs0 lbs612,115 lbs
8Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-0182,536 lbs0 lbs182,536 lbs
91,2-Dichloroethane107-06-2177,067 lbs59 lbs177,125 lbs
10Vinyl chloride75-01-480,700 lbs33 lbs80,733 lbs
11Chlorine7782-50-563,044 lbs3,421 lbs66,465 lbs
12Certain glycol ethersN23064,069 lbs0 lbs64,069 lbs
131,3-Butadiene106-99-050,362 lbs0 lbs50,362 lbs
14Dicyclopentadiene77-73-649,236 lbs26 lbs49,262 lbs
15Xylene (mixed isomers)1330-20-743,150 lbs0 lbs43,150 lbs
16Methyl iodide74-88-437,993 lbs0 lbs37,993 lbs
17Zinc compoundsN9826,608 lbs22,629 lbs29,237 lbs
18Acetaldehyde75-07-026,687 lbs0 lbs26,687 lbs
19Benzene71-43-219,827 lbs42 lbs19,869 lbs
20Ethylene glycol107-21-118,529 lbs0 lbs18,529 lbs
21Formaldehyde50-00-016,402 lbs0 lbs16,402 lbs
22Chlorobenzene108-90-716,036 lbs0 lbs16,036 lbs
23Chloroethane75-00-314,531 lbs0 lbs14,531 lbs
24Cyclohexane110-82-714,194 lbs0 lbs14,194 lbs
25Boron trifluoride7637-07-214,190 lbs0 lbs14,190 lbs
26Chloroform67-66-311,497 lbs51 lbs11,547 lbs
27Toluene108-88-39,752 lbs66 lbs9,818 lbs
28N,N-Dimethylformamide68-12-29,020 lbs0 lbs9,020 lbs
29Carbon tetrachloride56-23-57,770 lbs0 lbs7,770 lbs
30Isoprene78-79-55,909 lbs0 lbs5,909 lbs
31Maleic anhydride108-31-65,569 lbs0 lbs5,569 lbs
32DiisocyanatesN1204,282 lbs0 lbs4,282 lbs
331,1,2-Trichloroethane79-00-52,836 lbs0 lbs2,836 lbs
34Ethylidene dichloride75-34-32,180 lbs0 lbs2,180 lbs
35Di(2-ethylhexyl) phthalate117-81-72,020 lbs0 lbs2,020 lbs
361,2-Dichloroethylene540-59-01,428 lbs0 lbs1,428 lbs
37Styrene100-42-51,233 lbs0 lbs1,233 lbs
38Vinylidene chloride75-35-4693 lbs0 lbs693 lbs
39Hydrogen cyanide74-90-8596 lbs0 lbs596 lbs
40Copper compoundsN1000 lbs586 lbs586 lbs
41Naphthalene91-20-3493 lbs33 lbs526 lbs
42Aluminum (fume or dust)7429-90-5462 lbs0 lbs462 lbs
43Ethylbenzene100-41-4413 lbs32 lbs445 lbs
44Copper And Copper CompoundsN1000 lbs351 lbs351 lbs
45Acrylic acid79-10-7348 lbs0 lbs348 lbs
46Chloromethane74-87-3326 lbs0 lbs326 lbs
47Tetrachloroethylene127-18-4294 lbs0 lbs294 lbs
481,1,2,2-Tetrachloroethane79-34-5290 lbs0 lbs290 lbs
49Nitric acid7697-37-2260 lbs0 lbs260 lbs
50Pentachloroethane76-01-7245 lbs0 lbs245 lbs
51Hexachlorocyclopentadiene77-47-4110 lbs33 lbs143 lbs
52NonylphenolN530100 lbs13 lbs113 lbs
53Lead compoundsN42034 lbs54 lbs88 lbs
54n-Butyl alcohol71-36-387 lbs0 lbs87 lbs
55Trichloroethylene79-01-684 lbs0 lbs84 lbs
56Chromium compounds (except for chromite ore mined in the Transvaal Region)N0900 lbs81 lbs81 lbs
57Hexachloroethane67-72-181 lbs0 lbs81 lbs
58sec-Butyl alcohol78-92-268 lbs0 lbs68 lbs
59Dioxin and dioxin-like compoundsN1500 lbs60 lbs61 lbs
60Diethanolamine111-42-257 lbs0 lbs57 lbs
61Methyl acrylate96-33-347 lbs0 lbs47 lbs
62Ethyl acrylate140-88-535 lbs0 lbs35 lbs
63Triethylamine121-44-834 lbs0 lbs34 lbs
64Hexachlorobenzene118-74-115 lbs14 lbs29 lbs
65Butyl acrylate141-32-228 lbs0 lbs28 lbs
66Manganese compoundsN45026 lbs0 lbs26 lbs
67Methyl methacrylate80-62-625 lbs0 lbs25 lbs
68Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0900 lbs25 lbs25 lbs
69Dichloromethane75-09-222 lbs0 lbs22 lbs
70Lead And Lead CompoundsN42011 lbs10 lbs22 lbs
71Diphenylamine122-39-410 lbs0 lbs10 lbs
721,2,4-Trimethylbenzene95-63-610 lbs0 lbs10 lbs
73Lead7439-92-10 lbs10 lbs10 lbs
74Chloroprene126-99-810 lbs0 lbs10 lbs
75Polycyclic aromatic compoundsN5907 lbs0 lbs7 lbs
76N-Methyl-2-pyrrolidone872-50-43 lbs0 lbs3 lbs
77Bis(2-chloroethyl) ether111-44-42 lbs0 lbs2 lbs
78Mercury compoundsN4582 lbs0 lbs2 lbs
79Benzo[g,h,i]perylene191-24-20 lbs1 lbs1 lbs
80Mercury And Mercury CompoundsN4581 lbs0 lbs1 lbs

Top chemicals released near this property (2024 only):

Nitrate compounds (water dissociable; reportable only when in aqueous solution), Ammonia, Ethylene, Propylene, Maleic anhydride

View the full list of 65 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (65 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs607,579 lbs607,579 lbs
2Ammonia7664-41-749,914 lbs503 lbs475,930 lbs
3Ethylene74-85-1300,945 lbs0 lbs300,945 lbs
4Propylene115-07-1260,344 lbs0 lbs260,344 lbs
5Maleic anhydride108-31-61,569 lbs0 lbs134,889 lbs
6Methanol67-56-125,400 lbs64,010 lbs89,410 lbs
7Vinyl acetate108-05-481,700 lbs410 lbs82,473 lbs
8n-Hexane110-54-365,408 lbs0 lbs66,750 lbs
91,2-Dichloroethane107-06-212,354 lbs15 lbs12,708 lbs
10Copper And Copper CompoundsN1000 lbs209 lbs5,782 lbs
11Chlorine7782-50-55,521 lbs0 lbs5,521 lbs
12Vinyl chloride75-01-44,880 lbs2 lbs4,881 lbs
13Dicyclopentadiene77-73-64,280 lbs5 lbs4,285 lbs
14Polycyclic aromatic compoundsN5903 lbs0 lbs3,624 lbs
15Zinc compoundsN982426 lbs456 lbs3,528 lbs
16Formaldehyde50-00-03,363 lbs0 lbs3,363 lbs
17Toluene108-88-32,114 lbs8 lbs3,075 lbs
18Certain glycol ethersN2303,026 lbs0 lbs3,026 lbs
191,3-Butadiene106-99-02,958 lbs0 lbs2,958 lbs
20Cyclohexane110-82-71,726 lbs0 lbs2,621 lbs
21Dioxin and dioxin-like compoundsN1500 lbs7 lbs2,327 lbs
22Benzene71-43-21,725 lbs3 lbs2,171 lbs
23DiisocyanatesN1201,843 lbs0 lbs1,843 lbs
24Ethyl acrylate140-88-56 lbs0 lbs1,809 lbs
25Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0900 lbs0 lbs1,622 lbs
26Methyl iodide74-88-41,600 lbs0 lbs1,600 lbs
27Chloroethane75-00-31,506 lbs0 lbs1,506 lbs
28Boron trifluoride7637-07-21,192 lbs0 lbs1,192 lbs
29Xylene (mixed isomers)1330-20-71,144 lbs0 lbs1,144 lbs
30Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-01,072 lbs0 lbs1,072 lbs
31Chloroform67-66-3798 lbs9 lbs817 lbs
32Acetaldehyde75-07-0585 lbs0 lbs585 lbs
33Carbon tetrachloride56-23-5572 lbs0 lbs580 lbs
34Isoprene78-79-5578 lbs0 lbs578 lbs
35N,N-Dimethylformamide68-12-2570 lbs0 lbs570 lbs
36Lead7439-92-10 lbs5 lbs457 lbs
37Ethylbenzene100-41-4360 lbs2 lbs367 lbs
38Naphthalene91-20-3270 lbs18 lbs288 lbs
391,1,2-Trichloroethane79-00-5227 lbs0 lbs229 lbs
40Styrene100-42-5143 lbs0 lbs157 lbs
41Ethylidene dichloride75-34-3156 lbs0 lbs156 lbs
42Tetrachloroethylene127-18-424 lbs0 lbs139 lbs
43Acrylic acid79-10-7127 lbs0 lbs127 lbs
44Ethylene glycol107-21-1121 lbs0 lbs121 lbs
451,2-Dichloroethylene540-59-0103 lbs0 lbs103 lbs
46Vinylidene chloride75-35-449 lbs0 lbs49 lbs
47Benzo[g,h,i]perylene191-24-20 lbs0 lbs38 lbs
48Aluminum (fume or dust)7429-90-526 lbs0 lbs26 lbs
491,1,2,2-Tetrachloroethane79-34-524 lbs0 lbs24 lbs
50Nitric acid7697-37-220 lbs0 lbs20 lbs
51Pentachloroethane76-01-720 lbs0 lbs20 lbs
52Asbestos (friable)1332-21-40 lbs0 lbs17 lbs
53Hexachlorocyclopentadiene77-47-410 lbs5 lbs15 lbs
54Mercury And Mercury CompoundsN4581 lbs0 lbs12 lbs
55Trichloroethylene79-01-68 lbs0 lbs12 lbs
56NonylphenolN53010 lbs0 lbs10 lbs
57Lead And Lead CompoundsN4200 lbs4 lbs10 lbs
58n-Butyl alcohol71-36-37 lbs0 lbs7 lbs
59Hexachloroethane67-72-17 lbs0 lbs7 lbs
60sec-Butyl alcohol78-92-25 lbs0 lbs5 lbs
61Chlorobenzene108-90-70 lbs0 lbs4 lbs
62Hexachlorobenzene118-74-11 lbs1 lbs2 lbs
63Dichloromethane75-09-22 lbs0 lbs2 lbs
64Polychlorinated biphenyls1336-36-30 lbs0 lbs1 lbs
65Chloroprene126-99-81 lbs0 lbs1 lbs

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