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
4127 N HIGHWAY 146 BAYTOWN 77520
Building Size
1,182 sqft
Total structure area from HCAD building records.
Elevation
22.7 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
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: 12.7 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 87% 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)
3.47 million lbs
Extremely High
531.7x more than typical Houston property
≈ 173 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)
813 thousand lbs
Extremely High
168.5x 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)
2.66 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)3,468,678 lbs812,570 lbs2,656,108 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)392,495 lbs82,651 lbs309,844 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 87% 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):

Nitrate compounds (water dissociable; reportable only when in aqueous solution), Ammonia, Methanol, Chlorobenzene, Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)

View the full list of 53 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (53 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs2,578,707 lbs2,578,707 lbs
2Ammonia7664-41-7322,325 lbs69,066 lbs391,391 lbs
3Methanol67-56-187,809 lbs0 lbs87,809 lbs
4Chlorobenzene108-90-747,896 lbs163 lbs48,059 lbs
5Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-043,030 lbs0 lbs43,030 lbs
6Formaldehyde50-00-037,620 lbs0 lbs37,620 lbs
7Nitric acid7697-37-235,727 lbs0 lbs35,727 lbs
8Styrene100-42-534,808 lbs0 lbs34,808 lbs
9Cyclohexane110-82-734,434 lbs0 lbs34,434 lbs
10Aniline62-53-334,371 lbs23 lbs34,394 lbs
11Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-919,732 lbs0 lbs19,732 lbs
12Dichloromethane75-09-218,502 lbs358 lbs18,860 lbs
13Toluene108-88-316,696 lbs21 lbs16,717 lbs
14Xylene (mixed isomers)1330-20-716,328 lbs0 lbs16,328 lbs
15Benzene71-43-212,354 lbs23 lbs12,377 lbs
16Chlorine7782-50-58,463 lbs0 lbs8,463 lbs
17Nitrobenzene98-95-38,265 lbs0 lbs8,265 lbs
18Maleic anhydride108-31-68,262 lbs0 lbs8,262 lbs
19Chloroform67-66-32,786 lbs3,031 lbs5,817 lbs
201,2-Dichlorobenzene95-50-14,717 lbs6 lbs4,723 lbs
21Phosgene75-44-54,151 lbs0 lbs4,151 lbs
22Dichlorobenzene (mixed isomers)25321-22-62,948 lbs2 lbs2,950 lbs
23Chlorodifluoromethane (HCFC-22)75-45-62,717 lbs0 lbs2,717 lbs
244,4'-Isopropylidenediphenol80-05-7187 lbs2,489 lbs2,676 lbs
25Dibutyl phthalate84-74-22,436 lbs0 lbs2,436 lbs
26Ethylbenzene100-41-42,093 lbs0 lbs2,093 lbs
27Nickel7440-02-00 lbs1,939 lbs1,939 lbs
28Carbon tetrachloride56-23-5599 lbs0 lbs599 lbs
29Phenol108-95-2449 lbs104 lbs553 lbs
30Isopropyl alcohol (only persons who manufacture by the strong acid process are subject, no supplier notification)67-63-0529 lbs0 lbs529 lbs
31Methyl isobutyl ketone108-10-1422 lbs0 lbs422 lbs
32Chloromethane74-87-3396 lbs0 lbs396 lbs
33n-Hexane110-54-3331 lbs0 lbs331 lbs
34DiisocyanatesN120315 lbs0 lbs315 lbs
35Diaminotoluene (mixed isomers)25376-45-8269 lbs0 lbs269 lbs
36Dinitrotoluene (mixed isomers)25321-14-621 lbs167 lbs188 lbs
372,4-Diaminotoluene95-80-7156 lbs9 lbs165 lbs
38Toluene diisocyanate (mixed isomers)26471-62-5131 lbs0 lbs131 lbs
394,4'-Methylenedianiline101-77-989 lbs0 lbs89 lbs
40Carbon disulfide75-15-042 lbs0 lbs42 lbs
411,2,4-Trimethylbenzene95-63-637 lbs0 lbs37 lbs
42Toluene-2,6-diisocyanate91-08-730 lbs0 lbs30 lbs
43Allyl chloride107-05-126 lbs0 lbs26 lbs
44Toluene-2,4-diisocyanate584-84-921 lbs0 lbs21 lbs
45N,N-Dimethylformamide68-12-215 lbs0 lbs15 lbs
46o-Toluidine95-53-412 lbs0 lbs12 lbs
471,4-Dichlorobenzene106-46-712 lbs0 lbs12 lbs
48Ethylene glycol107-21-14 lbs0 lbs4 lbs
49m-Cresol108-39-43 lbs0 lbs3 lbs
504-Aminobiphenyl92-67-11 lbs0 lbs1 lbs
51Copper compoundsN1001 lbs0 lbs1 lbs
52Nickel compoundsN4951 lbs0 lbs1 lbs
53Zinc compoundsN9821 lbs0 lbs1 lbs

Top chemicals released near this property (2024 only):

Nitrate compounds (water dissociable; reportable only when in aqueous solution), Ammonia, Methanol, Chlorobenzene, Aniline

View the full list of 40 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (40 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs308,727 lbs308,727 lbs
2Ammonia7664-41-732,729 lbs0 lbs32,729 lbs
3Methanol67-56-110,098 lbs0 lbs10,098 lbs
4Chlorobenzene108-90-75,807 lbs14 lbs5,821 lbs
5Aniline62-53-34,471 lbs0 lbs4,471 lbs
6Styrene100-42-53,715 lbs0 lbs3,715 lbs
7Dichloromethane75-09-23,434 lbs53 lbs3,487 lbs
8Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-03,456 lbs0 lbs3,456 lbs
9Nitric acid7697-37-23,243 lbs0 lbs3,243 lbs
10Formaldehyde50-00-03,232 lbs0 lbs3,232 lbs
11Cyclohexane110-82-72,505 lbs0 lbs2,505 lbs
12Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-92,329 lbs0 lbs2,329 lbs
13Xylene (mixed isomers)1330-20-71,915 lbs0 lbs1,915 lbs
14Toluene108-88-31,846 lbs0 lbs1,846 lbs
15Chlorine7782-50-5797 lbs0 lbs797 lbs
16Nickel7440-02-00 lbs605 lbs605 lbs
17Nitrobenzene98-95-3566 lbs0 lbs566 lbs
18Benzene71-43-2489 lbs0 lbs489 lbs
19Ethylbenzene100-41-4382 lbs0 lbs382 lbs
20Chloroform67-66-390 lbs268 lbs358 lbs
21Maleic anhydride108-31-6340 lbs0 lbs340 lbs
22Dichlorobenzene (mixed isomers)25321-22-6275 lbs0 lbs275 lbs
23Isopropyl alcohol (only persons who manufacture by the strong acid process are subject, no supplier notification)67-63-0267 lbs0 lbs267 lbs
241,2-Dichlorobenzene95-50-1232 lbs0 lbs232 lbs
25Chloromethane74-87-3200 lbs0 lbs200 lbs
264,4'-Isopropylidenediphenol80-05-711 lbs174 lbs185 lbs
27Phosgene75-44-5107 lbs0 lbs107 lbs
28n-Hexane110-54-329 lbs0 lbs29 lbs
292,4-Diaminotoluene95-80-722 lbs0 lbs22 lbs
30Phenol108-95-216 lbs3 lbs19 lbs
31Toluene diisocyanate (mixed isomers)26471-62-513 lbs0 lbs13 lbs
321,2,4-Trimethylbenzene95-63-611 lbs0 lbs11 lbs
331,4-Dichlorobenzene106-46-78 lbs0 lbs8 lbs
34DiisocyanatesN1205 lbs0 lbs5 lbs
35Diaminotoluene (mixed isomers)25376-45-83 lbs0 lbs3 lbs
36Dinitrotoluene (mixed isomers)25321-14-63 lbs0 lbs3 lbs
37Dibutyl phthalate84-74-22 lbs0 lbs2 lbs
38Toluene-2,6-diisocyanate91-08-72 lbs0 lbs2 lbs
39Toluene-2,4-diisocyanate584-84-91 lbs0 lbs1 lbs
40Ethylene glycol107-21-11 lbs0 lbs1 lbs

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