Data-driven insights for local properties

Complete Property Analysis

Environmental risk, tax analysis, and property details for 8500 Sjolander Rd, Baytown, TX 77521

HCAD #0401680000001
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🌍Environmental Assessment

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.

🌊Flood Risk Analysis
FEMA Zone X
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
8500 Sjolander Rd, Baytown, TX 77521
Elevation
28.98 ft
Height above sea level from USGS data.
FEMA Flood Zone
X
Moderate to Low Risk - Outside 500-year floodplain
Overall Risk
Very High
Property flooded at 9.84ft depth.
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 High
Flood Depth
9.84 ft±0.5 ft
Depth of water above ground level.
Water Surface Elevation (WSE)
38.83 ft
Water surface elevation relative to sea level (NAVD88 datum).
Area Inundated
162.1 acres
55.0% of 500m radius flooded.
Nearest Bayou Stage
N/A
No nearby bayou within monitoring range
Depth-Damage (HCAD Valuation)
$0
Vacant lot (no building data).
Depth-Damage (Neighborhood)
$0
Vacant lot (no building data).
Analysis Method
COG Combined 5000 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 Flooded
Flood Depth: 9.84 feet
Severity
Severe
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.

#1
Minimal flood hazard area - property outside mapped high-risk zones
#2
Flood insurance available at preferred rates - over 25% of claims occur in low-risk areas
#3
Review official FEMA Flood Insurance Rate Map (FIRM) for detailed flood zone boundaries
#4
Contact Harris County Flood Control District (HCFCD) for drainage projects and flood information
🏭Industrial Pollution Exposure
10.2th percentile
Property Pollution Ranking
High
Higher pollution than 90% of Houston homes
Compares pollution within 2mi against 10,000 Houston properties. Lower percentiles = higher pollution.
Industrial Pollution Nearby (10 Years)
7.69 millionlbs
Extremely High
1178.6x more than typical Houston property
≈ 384 dump trucks of chemicals within 2 miles
Air Pollution (10 Years)
7.31 millionlbs
Extremely High
1516.0x more than typical Houston property
Includes fugitive emissions (leaks) and stack emissions (smokestacks).
Water Pollution (10 Years)
379 thousandlbs
Extremely High
Discharges to bayous, streams, and drainage systems.
Facilities Nearby
6
Industrial facilities within 2 miles
💡
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)7,689,395 lbs7,310,814 lbs378,581 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)1,206,596 lbs1,176,031 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 90% 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 chemicals released near this property (past 10 years):
Ethylene, Propylene, Ammonia, Nitrate compounds (water dissociable; reportable only when in aqueous solution), 1,3-Butadiene
View the full list of 27 chemicals below.
Chemicals Released (2014-2024, 10-Year Total)(27 chemicals)
#ChemicalCAS#Air (lbs/10yr)Water (lbs/10yr)Total (lbs/10yr)
1Ethylene74-85-14,787,850 lbs0 lbs4,787,850 lbs
2Propylene115-07-1690,562 lbs0 lbs690,562 lbs
3Ammonia7664-41-7596,318 lbs7,612 lbs603,930 lbs
4Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs370,664 lbs370,664 lbs
51,3-Butadiene106-99-0294,155 lbs0 lbs294,155 lbs
6Benzene71-43-2243,483 lbs305 lbs243,788 lbs
7n-Hexane110-54-3179,515 lbs0 lbs179,515 lbs
8Xylene (mixed isomers)1330-20-7161,107 lbs0 lbs161,107 lbs
9Toluene108-88-385,947 lbs0 lbs85,947 lbs
10Cyclohexane110-82-765,729 lbs0 lbs65,729 lbs
11Methanol67-56-162,125 lbs0 lbs62,125 lbs
12Ethylbenzene100-41-456,880 lbs0 lbs56,880 lbs
13Naphthalene91-20-332,518 lbs0 lbs32,518 lbs
14N,N-Dimethylformamide68-12-219,581 lbs0 lbs19,581 lbs
15Isoprene78-79-516,125 lbs0 lbs16,125 lbs
16Zinc compoundsN9826,310 lbs0 lbs6,310 lbs
17n-Butyl alcohol71-36-35,759 lbs0 lbs5,759 lbs
18Styrene100-42-53,178 lbs0 lbs3,178 lbs
19Biphenyl92-52-41,179 lbs0 lbs1,179 lbs
20Phenanthrene85-01-81,002 lbs0 lbs1,002 lbs
211,2,4-Trimethylbenzene95-63-6907 lbs0 lbs907 lbs
22Cumene98-82-8378 lbs0 lbs378 lbs
23Dicyclopentadiene77-73-6169 lbs0 lbs169 lbs
24Chlorine7782-50-525 lbs0 lbs25 lbs
25Boron trifluoride7637-07-28 lbs0 lbs8 lbs
26Anthracene120-12-71 lbs0 lbs1 lbs
27Diethanolamine111-42-21 lbs0 lbs1 lbs
📋
Top chemicals released near this property (2024 only):
Ethylene, Propylene, 1,3-Butadiene, Ammonia, Benzene
View the full list of 22 chemicals reported within 2 miles for 2024.
Chemicals Released (2024 Only)(22 chemicals)
#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Ethylene74-85-1834,208 lbs0 lbs834,208 lbs
2Propylene115-07-181,916 lbs0 lbs81,916 lbs
31,3-Butadiene106-99-081,011 lbs0 lbs81,011 lbs
4Ammonia7664-41-776,320 lbs1,581 lbs77,901 lbs
5Benzene71-43-242,352 lbs0 lbs42,352 lbs
6Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs28,984 lbs28,984 lbs
7n-Hexane110-54-318,184 lbs0 lbs18,184 lbs
8Toluene108-88-310,070 lbs0 lbs10,070 lbs
9Xylene (mixed isomers)1330-20-78,189 lbs0 lbs8,189 lbs
10Cyclohexane110-82-77,525 lbs0 lbs7,525 lbs
11Methanol67-56-16,228 lbs0 lbs6,228 lbs
12Ethylbenzene100-41-42,904 lbs0 lbs2,904 lbs
13Naphthalene91-20-31,912 lbs0 lbs1,912 lbs
14N,N-Dimethylformamide68-12-21,881 lbs0 lbs1,881 lbs
15Isoprene78-79-51,515 lbs0 lbs1,515 lbs
16n-Butyl alcohol71-36-3943 lbs0 lbs943 lbs
17Zinc compoundsN982368 lbs0 lbs368 lbs
18Styrene100-42-5234 lbs0 lbs234 lbs
19Biphenyl92-52-491 lbs0 lbs91 lbs
20Phenanthrene85-01-872 lbs0 lbs72 lbs
211,2,4-Trimethylbenzene95-63-657 lbs0 lbs57 lbs
22Cumene98-82-851 lbs0 lbs51 lbs
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