Data-driven insights for local properties

Complete Property Analysis

Environmental risk, tax analysis, and property details for 3509 Cedarcrest Dr, Pasadena, TX 77503

HCAD #0904100000005
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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
3509 Cedarcrest Dr, Pasadena, TX 77503
Building Size
2,048sqft
Total structure area from HCAD building records.
Elevation
29.99 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)
39.83 ft
Water surface elevation relative to sea level (NAVD88 datum).
Area Inundated
294.9 acres
100.0% of 500m radius flooded.
Nearest Bayou Stage
N/A
No nearby bayou within monitoring range
Depth-Damage (HCAD Valuation)
$84,916
Based on HCAD building value of $130,640.
Depth-Damage (Neighborhood)
$87,140
Based on neighborhood replacement cost.
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
30.9th percentile
Property Pollution Ranking
Moderate
Higher pollution than 69% of Houston homes
Compares pollution within 2mi against 10,000 Houston properties. Lower percentiles = higher pollution.
Industrial Pollution Nearby (10 Years)
200 thousandlbs
High
30.6x more than typical Houston property
≈ 10 dump trucks of chemicals within 2 miles
Air Pollution (10 Years)
199 thousandlbs
High
41.3x more than typical Houston property
Includes fugitive emissions (leaks) and stack emissions (smokestacks).
Water Pollution (10 Years)
527lbs
High
Discharges to bayous, streams, and drainage systems.
Facilities Nearby
7
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)199,812 lbs199,285 lbs527 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)24,092 lbs24,073 lbs19 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 69% of Houston homes
Each bar's width represents the percentage of Houston homes in that pollution range. This property ranks in the 30-39th percentile.
📋
Top chemicals released near this property (past 10 years):
Xylene (mixed isomers), 1,2,4-Trimethylbenzene, Toluene, n-Hexane, Boron trifluoride
View the full list of 31 chemicals below.
Chemicals Released (2014-2024, 10-Year Total)(31 chemicals)
#ChemicalCAS#Air (lbs/10yr)Water (lbs/10yr)Total (lbs/10yr)
1Xylene (mixed isomers)1330-20-745,323 lbs33 lbs45,365 lbs
21,2,4-Trimethylbenzene95-63-636,587 lbs105 lbs36,695 lbs
3Toluene108-88-329,713 lbs27 lbs29,749 lbs
4n-Hexane110-54-318,945 lbs170 lbs19,116 lbs
5Boron trifluoride7637-07-214,388 lbs0 lbs14,388 lbs
6Benzene71-43-211,221 lbs24 lbs11,247 lbs
7Chlorine7782-50-56,383 lbs0 lbs6,383 lbs
8Ethylbenzene100-41-45,951 lbs22 lbs5,975 lbs
9Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-05,066 lbs0 lbs5,066 lbs
10Ammonia7664-41-74,450 lbs0 lbs4,450 lbs
11Phenol108-95-24,263 lbs0 lbs4,263 lbs
12Zinc compoundsN9824,126 lbs0 lbs4,126 lbs
13Methanol67-56-13,671 lbs0 lbs3,671 lbs
14Ethylene glycol107-21-11,956 lbs0 lbs1,956 lbs
15o-Cresol95-48-71,585 lbs0 lbs1,585 lbs
16Cumene98-82-81,513 lbs10 lbs1,524 lbs
17Maleic anhydride108-31-61,009 lbs0 lbs1,009 lbs
18Cyclohexane110-82-7995 lbs0 lbs995 lbs
19Naphthalene91-20-3935 lbs21 lbs957 lbs
20Formaldehyde50-00-0857 lbs0 lbs857 lbs
21Diethanolamine111-42-2205 lbs0 lbs205 lbs
22Diphenylamine122-39-4118 lbs0 lbs118 lbs
23Chromium7440-47-30 lbs33 lbs33 lbs
24Nickel7440-02-00 lbs31 lbs31 lbs
25Lead And Lead CompoundsN4203 lbs22 lbs25 lbs
26Lead compoundsN4201 lbs22 lbs22 lbs
27Certain glycol ethersN23012 lbs0 lbs12 lbs
28Methyl tert-butyl ether1634-04-42 lbs5 lbs10 lbs
29Polycyclic aromatic compoundsN5902 lbs2 lbs4 lbs
30Piperonyl butoxide51-03-64 lbs0 lbs4 lbs
31Mercury And Mercury CompoundsN4581 lbs0 lbs1 lbs
📋
Top chemicals released near this property (2024 only):
Ammonia, 1,2,4-Trimethylbenzene, Xylene (mixed isomers), Toluene, n-Hexane
View the full list of 26 chemicals reported within 2 miles for 2024.
Chemicals Released (2024 Only)(26 chemicals)
#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Ammonia7664-41-74,450 lbs0 lbs4,450 lbs
21,2,4-Trimethylbenzene95-63-64,000 lbs0 lbs4,000 lbs
3Xylene (mixed isomers)1330-20-73,675 lbs5 lbs3,680 lbs
4Toluene108-88-32,900 lbs3 lbs2,903 lbs
5n-Hexane110-54-32,320 lbs0 lbs2,320 lbs
6Phenol108-95-21,951 lbs0 lbs1,951 lbs
7Boron trifluoride7637-07-21,178 lbs0 lbs1,178 lbs
8Benzene71-43-21,130 lbs2 lbs1,132 lbs
9Chlorine7782-50-5487 lbs0 lbs487 lbs
10Ethylbenzene100-41-4427 lbs3 lbs430 lbs
11Zinc compoundsN982323 lbs0 lbs323 lbs
12Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-0265 lbs0 lbs265 lbs
13Cyclohexane110-82-7232 lbs0 lbs232 lbs
14Cumene98-82-8183 lbs0 lbs183 lbs
15Naphthalene91-20-3132 lbs1 lbs133 lbs
16Maleic anhydride108-31-6132 lbs0 lbs132 lbs
17Formaldehyde50-00-099 lbs0 lbs99 lbs
18o-Cresol95-48-788 lbs0 lbs88 lbs
19Methanol67-56-178 lbs0 lbs78 lbs
20Diphenylamine122-39-423 lbs0 lbs23 lbs
21Nickel7440-02-00 lbs2 lbs2 lbs
22Chromium7440-47-30 lbs2 lbs2 lbs
23Lead And Lead CompoundsN4201 lbs1 lbs1 lbs
24Certain glycol ethersN2301 lbs0 lbs1 lbs
25Ethylene glycol107-21-11 lbs0 lbs1 lbs
26Polycyclic aromatic compoundsN5900 lbs0 lbs1 lbs
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