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
0 SJOLANDER RD BAYTOWN 77521
Elevation
13.69 ft
Height above sea level from USGS data.
FEMA Flood Zone
AE
High Risk - 1% annual chance with established base flood elevation
Overall Risk
Moderate
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
Moderate
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: 3.69 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.

  • 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.

🏭 Part 2: Industrial Pollution Exposure

Property Pollution Ranking
Very High
Higher pollution than 92% 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)
12.32 million lbs
Extremely High
1887.8x more than typical Houston property
≈ 616 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)
11.94 million lbs
Extremely High
2475.4x 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)
379 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)12,316,413 lbs11,937,004 lbs379,409 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)2,070,703 lbs1,775,433 lbs30,565 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 92% 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):

Ethylene, Propylene, Ammonia, n-Hexane, Nitrate compounds (water dissociable; reportable only when in aqueous solution)

View the full list of 35 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (35 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Ethylene74-85-15,343,277 lbs0 lbs5,343,495 lbs
2Propylene115-07-13,433,365 lbs0 lbs3,433,524 lbs
3Ammonia7664-41-71,012,741 lbs7,681 lbs1,020,422 lbs
4n-Hexane110-54-3932,913 lbs0 lbs932,991 lbs
5Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs370,664 lbs370,664 lbs
61,3-Butadiene106-99-0295,974 lbs0 lbs295,974 lbs
7Benzene71-43-2251,193 lbs312 lbs251,582 lbs
8Xylene (mixed isomers)1330-20-7182,161 lbs0 lbs182,161 lbs
9Toluene108-88-3101,966 lbs0 lbs101,966 lbs
10Hydrogen sulfide7783-06-462,196 lbs0 lbs100,935 lbs
11Methanol67-56-187,675 lbs0 lbs87,675 lbs
12Cyclohexane110-82-781,924 lbs0 lbs82,004 lbs
13Ethylbenzene100-41-456,880 lbs0 lbs56,880 lbs
14Naphthalene91-20-332,959 lbs0 lbs32,959 lbs
15N,N-Dimethylformamide68-12-219,581 lbs0 lbs19,581 lbs
16Isoprene78-79-516,125 lbs0 lbs16,125 lbs
17Zinc compoundsN9826,310 lbs0 lbs6,310 lbs
18Chlorine7782-50-55,524 lbs739 lbs6,263 lbs
19n-Butyl alcohol71-36-35,779 lbs0 lbs5,779 lbs
20Styrene100-42-53,178 lbs0 lbs3,178 lbs
21Biphenyl92-52-41,179 lbs0 lbs1,179 lbs
22Methyl tert-butyl ether1634-04-41,037 lbs0 lbs1,037 lbs
23Phenanthrene85-01-81,002 lbs0 lbs1,002 lbs
241,2,4-Trimethylbenzene95-63-6907 lbs0 lbs907 lbs
25Cumene98-82-8378 lbs0 lbs378 lbs
26Diethanolamine111-42-2357 lbs0 lbs357 lbs
27Dicyclopentadiene77-73-6169 lbs0 lbs169 lbs
28Formaldehyde50-00-095 lbs0 lbs95 lbs
29Carbon disulfide75-15-072 lbs0 lbs72 lbs
30Hydrazine302-01-261 lbs0 lbs61 lbs
31Carbon tetrachloride56-23-50 lbs13 lbs13 lbs
32Methyl isobutyl ketone108-10-110 lbs0 lbs10 lbs
33Boron trifluoride7637-07-28 lbs0 lbs8 lbs
34Molybdenum trioxide1313-27-55 lbs0 lbs5 lbs
35Anthracene120-12-71 lbs0 lbs1 lbs

Top chemicals released near this property (2024 only):

Ethylene, Propylene, Ammonia, n-Hexane, Methanol

View the full list of 32 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (32 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Ethylene74-85-1909,880 lbs0 lbs910,016 lbs
2Propylene115-07-1388,988 lbs0 lbs389,087 lbs
3Ammonia7664-41-7141,781 lbs1,581 lbs183,106 lbs
4n-Hexane110-54-3140,248 lbs0 lbs143,329 lbs
5Methanol67-56-17,790 lbs0 lbs100,626 lbs
61,3-Butadiene106-99-081,011 lbs0 lbs81,011 lbs
7n-Butyl alcohol71-36-3945 lbs0 lbs63,045 lbs
8Benzene71-43-244,599 lbs0 lbs56,939 lbs
9Hydrogen sulfide7783-06-49,537 lbs0 lbs33,754 lbs
10Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs28,984 lbs28,984 lbs
11Toluene108-88-314,154 lbs0 lbs15,166 lbs
12Xylene (mixed isomers)1330-20-713,129 lbs0 lbs15,020 lbs
13Naphthalene91-20-31,961 lbs0 lbs12,198 lbs
14Cyclohexane110-82-711,659 lbs0 lbs12,097 lbs
15Lead compoundsN4200 lbs0 lbs8,353 lbs
16Ethylbenzene100-41-42,904 lbs0 lbs6,411 lbs
17N,N-Dimethylformamide68-12-21,881 lbs0 lbs1,881 lbs
18Chromium compounds (except for chromite ore mined in the Transvaal Region)N0900 lbs0 lbs1,731 lbs
19Chlorine7782-50-51,561 lbs0 lbs1,561 lbs
20Isoprene78-79-51,515 lbs0 lbs1,515 lbs
21Phenanthrene85-01-872 lbs0 lbs1,489 lbs
22Biphenyl92-52-491 lbs0 lbs1,484 lbs
23Methyl tert-butyl ether1634-04-4901 lbs0 lbs901 lbs
24Zinc compoundsN982368 lbs0 lbs374 lbs
25Styrene100-42-5234 lbs0 lbs317 lbs
26Diethanolamine111-42-2105 lbs0 lbs105 lbs
271,2,4-Trimethylbenzene95-63-657 lbs0 lbs90 lbs
28Cumene98-82-851 lbs0 lbs53 lbs
29Nickel7440-02-00 lbs0 lbs43 lbs
30Hydrazine302-01-27 lbs0 lbs7 lbs
31Formaldehyde50-00-05 lbs0 lbs5 lbs
32Polycyclic aromatic compoundsN5900 lbs0 lbs5 lbs

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