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
4117 FAIR DR PASADENA 77507
Elevation
21.38 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: 11.38 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.

  • 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)
4.3 million lbs
Extremely High
659.1x more than typical Houston property
≈ 215 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)
4.28 million lbs
Extremely High
888.3x 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)
16 thousand 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)4,300,029 lbs4,283,693 lbs16,336 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)1,696,193 lbs344,921 lbs1,275 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, Ammonia, Nitric acid

View the full list of 62 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (62 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1n-Hexane110-54-31,157,243 lbs0 lbs1,157,243 lbs
2Ethylene74-85-1723,170 lbs0 lbs723,170 lbs
3Toluene108-88-3434,759 lbs0 lbs434,759 lbs
4Ammonia7664-41-7417,580 lbs123 lbs417,723 lbs
5Nitric acid7697-37-2397,668 lbs55 lbs397,748 lbs
6Methanol67-56-1127,154 lbs0 lbs133,681 lbs
7Ethylene glycol107-21-1104,863 lbs0 lbs104,863 lbs
8Ethylene oxide75-21-898,927 lbs0 lbs98,927 lbs
9N,N-Dimethylformamide68-12-286,451 lbs0 lbs86,451 lbs
10Acrylonitrile107-13-184,414 lbs0 lbs84,414 lbs
11Styrene100-42-574,871 lbs0 lbs74,871 lbs
12n-Butyl alcohol71-36-374,439 lbs0 lbs74,439 lbs
13Butyl acrylate141-32-272,623 lbs0 lbs72,623 lbs
141,3-Butadiene106-99-059,009 lbs0 lbs59,009 lbs
15Methyl methacrylate80-62-657,262 lbs0 lbs57,262 lbs
16Certain glycol ethersN23046,549 lbs0 lbs46,550 lbs
17Molybdenum trioxide1313-27-537,655 lbs3,227 lbs40,897 lbs
18Hydrogen sulfide7783-06-431,678 lbs0 lbs31,678 lbs
19Phenol108-95-230,497 lbs0 lbs30,497 lbs
20Acetaldehyde75-07-025,328 lbs0 lbs25,328 lbs
21tert-Butyl alcohol75-65-020,711 lbs0 lbs20,711 lbs
22Xylene (mixed isomers)1330-20-717,096 lbs0 lbs17,096 lbs
23Chlorine7782-50-515,132 lbs0 lbs15,132 lbs
24Nickel compoundsN49511,795 lbs1,904 lbs13,714 lbs
252-Methoxyethanol109-86-411,669 lbs0 lbs11,669 lbs
26Nitrate compounds (water dissociable; reportable only when in aqueous solution)N51130 lbs9,885 lbs9,930 lbs
27Chloroethane75-00-39,070 lbs0 lbs9,070 lbs
28Cobalt compoundsN0965,871 lbs886 lbs6,772 lbs
292-Ethoxyethanol110-80-56,044 lbs0 lbs6,044 lbs
30Ethylbenzene100-41-45,307 lbs0 lbs5,307 lbs
31Cumene98-82-85,060 lbs0 lbs5,060 lbs
32Diphenylamine122-39-44,941 lbs0 lbs4,941 lbs
33Nickel And Nickel CompoundsN4954,878 lbs62 lbs4,940 lbs
34Cobalt And Cobalt CompoundsN0964,551 lbs42 lbs4,593 lbs
35Dimethylamine124-40-33,754 lbs0 lbs3,754 lbs
36Formaldehyde50-00-02,738 lbs102 lbs2,840 lbs
37Propylene oxide75-56-92,606 lbs0 lbs2,606 lbs
38Maleic anhydride108-31-61,577 lbs0 lbs1,577 lbs
39Allyl alcohol107-18-61,569 lbs0 lbs1,569 lbs
40Allyl chloride107-05-11,277 lbs0 lbs1,277 lbs
411,2,4-Trimethylbenzene95-63-61,065 lbs0 lbs1,065 lbs
42NonylphenolN5301,013 lbs0 lbs1,013 lbs
43Nonylphenol EthoxylatesN5351,008 lbs0 lbs1,008 lbs
44Cyclohexane110-82-7857 lbs0 lbs857 lbs
45Benzoyl chloride98-88-4469 lbs0 lbs469 lbs
46Hydrazine302-01-2437 lbs0 lbs437 lbs
47Lead And Lead CompoundsN420211 lbs10 lbs221 lbs
48Barium compounds (except for barium sulfate (CAS No. 7727-43-7))N040145 lbs30 lbs175 lbs
49Bifenthrin82657-04-3149 lbs0 lbs149 lbs
50Lead compoundsN420138 lbs4 lbs142 lbs
51Copper compoundsN100132 lbs6 lbs138 lbs
52Naphthalene91-20-396 lbs0 lbs96 lbs
53Cyanide compoundsN1065 lbs0 lbs58 lbs
54Chloromethane74-87-351 lbs0 lbs51 lbs
55Ethyl acrylate140-88-549 lbs0 lbs49 lbs
56Cumene hydroperoxide80-15-926 lbs0 lbs26 lbs
57Oxyfluorfen42874-03-310 lbs0 lbs10 lbs
584,4'-Diaminodiphenyl ether101-80-46 lbs0 lbs6 lbs
59Zinc compoundsN9825 lbs0 lbs5 lbs
60Bis(2-chloroethyl) ether111-44-43 lbs0 lbs3 lbs
61Nickel7440-02-02 lbs0 lbs2 lbs
62Boron trifluoride7637-07-21 lbs0 lbs1 lbs

Top chemicals released near this property (2024 only):

Methanol, Ethylene glycol, n-Hexane, tert-Butyl alcohol, Nonylphenol Ethoxylates

View the full list of 52 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (52 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Methanol67-56-16,733 lbs0 lbs620,790 lbs
2Ethylene glycol107-21-13,267 lbs0 lbs147,087 lbs
3n-Hexane110-54-3121,018 lbs0 lbs122,153 lbs
4tert-Butyl alcohol75-65-01,238 lbs0 lbs94,671 lbs
5Nonylphenol EthoxylatesN535131 lbs0 lbs93,342 lbs
6Dimethylamine124-40-3341 lbs0 lbs92,098 lbs
7Ethylene74-85-190,297 lbs0 lbs90,297 lbs
8Molybdenum trioxide1313-27-52,770 lbs482 lbs79,984 lbs
9Diphenylamine122-39-42 lbs0 lbs48,628 lbs
10Ammonia7664-41-746,286 lbs5 lbs47,885 lbs
111,2,4-Trimethylbenzene95-63-699 lbs0 lbs44,035 lbs
12Toluene108-88-314,342 lbs0 lbs42,732 lbs
13Copper7440-50-80 lbs0 lbs27,230 lbs
14Ethylene oxide75-21-87,605 lbs0 lbs16,153 lbs
15Xylene (mixed isomers)1330-20-7635 lbs0 lbs13,936 lbs
16Certain glycol ethersN2303,460 lbs0 lbs13,228 lbs
17Nickel And Nickel CompoundsN49582 lbs8 lbs12,690 lbs
18Chloroethane75-00-33,424 lbs0 lbs9,649 lbs
19Nitric acid7697-37-29,490 lbs5 lbs9,500 lbs
20N,N-Dimethylformamide68-12-27,763 lbs0 lbs8,980 lbs
21Nickel compoundsN4951,017 lbs108 lbs7,851 lbs
22Phenol108-95-21,875 lbs0 lbs6,506 lbs
23Methyl methacrylate80-62-66,109 lbs0 lbs6,281 lbs
24n-Butyl alcohol71-36-32,203 lbs0 lbs5,477 lbs
25Naphthalene91-20-312 lbs0 lbs4,436 lbs
26Butyl acrylate141-32-23,592 lbs0 lbs3,681 lbs
27Hydrogen sulfide7783-06-43,596 lbs0 lbs3,596 lbs
28Styrene100-42-51,550 lbs0 lbs3,313 lbs
29Ethylbenzene100-41-4275 lbs0 lbs2,926 lbs
30Cumene98-82-8210 lbs0 lbs2,919 lbs
31Cobalt compoundsN096455 lbs36 lbs2,816 lbs
32Cumene hydroperoxide80-15-90 lbs0 lbs1,560 lbs
33Chlorine7782-50-51,293 lbs0 lbs1,293 lbs
341,3-Butadiene106-99-01,172 lbs0 lbs1,172 lbs
35Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs622 lbs1,122 lbs
362-Methoxyethanol109-86-41,027 lbs0 lbs1,045 lbs
37Acetaldehyde75-07-0375 lbs0 lbs1,034 lbs
38Cobalt And Cobalt CompoundsN09682 lbs8 lbs917 lbs
39Formaldehyde50-00-0154 lbs0 lbs667 lbs
40Maleic anhydride108-31-6186 lbs0 lbs592 lbs
412-Ethoxyethanol110-80-5407 lbs0 lbs429 lbs
42Dimethyl phthalate131-11-30 lbs0 lbs406 lbs
43Cyclohexane110-82-724 lbs0 lbs315 lbs
44Propylene oxide75-56-970 lbs0 lbs234 lbs
45NonylphenolN5301 lbs0 lbs224 lbs
46Allyl chloride107-05-1165 lbs0 lbs165 lbs
47Lead And Lead CompoundsN42016 lbs1 lbs68 lbs
48Hydrazine302-01-239 lbs0 lbs39 lbs
49Benzoyl chloride98-88-433 lbs0 lbs33 lbs
50Acrylonitrile107-13-10 lbs0 lbs4 lbs
51Aniline62-53-30 lbs0 lbs2 lbs
524,4'-Diaminodiphenyl ether101-80-40 lbs0 lbs1 lbs

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