Data-driven insights for local properties

Complete Property Analysis

Environmental risk, tax analysis, and property details for 808 W Shaw Ave, Pasadena, TX 77506

HCAD #0901690000013
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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 AE
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
808 W Shaw Ave, Pasadena, TX 77506
Elevation
14.07 ft
Height above sea level from USGS data.
FEMA Flood Zone
AE
High Risk - 1% annual chance with established base flood elevation
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)
23.91 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)
$52,895
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
Special Flood Hazard Area (SFHA): Flood insurance required for federally backed mortgages
#2
Obtain an Elevation Certificate to determine accurate flood insurance premiums
#3
Property elevation currently above simulated flood level
#4
Maintain flood insurance coverage as required in Special Flood Hazard Areas
#5
Review official FEMA Flood Insurance Rate Map (FIRM) for detailed flood zone boundaries
#6
Contact Harris County Flood Control District (HCFCD) for drainage projects and flood information
🏭Industrial Pollution Exposure
10.7th percentile
Property Pollution Ranking
High
Higher pollution than 89% of Houston homes
Compares pollution within 2mi against 10,000 Houston properties. Lower percentiles = higher pollution.
Industrial Pollution Nearby (10 Years)
7.01 millionlbs
Extremely High
1074.0x more than typical Houston property
≈ 350 dump trucks of chemicals within 2 miles
Air Pollution (10 Years)
7 millionlbs
Extremely High
1452.2x more than typical Houston property
Includes fugitive emissions (leaks) and stack emissions (smokestacks).
Water Pollution (10 Years)
5 thousandlbs
Very High
Discharges to bayous, streams, and drainage systems.
Facilities Nearby
18
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)7,007,395 lbs7,002,762 lbs4,632 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)396,788 lbs395,658 lbs282 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 89% 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):
Propylene, n-Hexane, Hydrogen cyanide, Ammonia, Xylene (mixed isomers)
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)
1Propylene115-07-11,208,542 lbs0 lbs1,208,542 lbs
2n-Hexane110-54-31,106,314 lbs9 lbs1,106,813 lbs
3Hydrogen cyanide74-90-81,032,286 lbs0 lbs1,032,286 lbs
4Ammonia7664-41-7811,745 lbs0 lbs811,745 lbs
5Xylene (mixed isomers)1330-20-7413,236 lbs741 lbs416,408 lbs
6Ethylene74-85-1370,774 lbs0 lbs370,774 lbs
7Methanol67-56-1330,794 lbs0 lbs330,794 lbs
8Benzene71-43-2299,012 lbs486 lbs300,080 lbs
9Toluene108-88-3294,167 lbs277 lbs295,412 lbs
10Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-9250,113 lbs0 lbs250,113 lbs
11Hydrogen sulfide7783-06-4244,215 lbs0 lbs244,216 lbs
12n-Butyl alcohol71-36-3137,606 lbs0 lbs137,606 lbs
13Diethanolamine111-42-2102,160 lbs0 lbs102,160 lbs
14Vinyl acetate108-05-470,754 lbs0 lbs70,754 lbs
15Cyclohexane110-82-766,580 lbs0 lbs67,349 lbs
16Ethylbenzene100-41-461,277 lbs118 lbs62,032 lbs
171,3-Butadiene106-99-050,685 lbs0 lbs50,685 lbs
18Propionaldehyde123-38-631,241 lbs0 lbs31,241 lbs
19Butyraldehyde123-72-822,150 lbs0 lbs22,150 lbs
20Naphthalene91-20-320,148 lbs75 lbs21,558 lbs
211,2,4-Trimethylbenzene95-63-613,848 lbs0 lbs14,337 lbs
22Dicyclopentadiene77-73-614,013 lbs0 lbs14,013 lbs
23Cumene98-82-88,938 lbs0 lbs9,127 lbs
24Dimethylamine124-40-36,912 lbs0 lbs6,912 lbs
25Acetaldehyde75-07-06,116 lbs0 lbs6,116 lbs
26Ethylene glycol107-21-15,553 lbs0 lbs5,562 lbs
27Biphenyl92-52-45,161 lbs0 lbs5,502 lbs
28Isobutyraldehyde78-84-24,080 lbs0 lbs4,080 lbs
29Polycyclic aromatic compoundsN5902,910 lbs525 lbs3,636 lbs
30Zinc compoundsN982219 lbs1,181 lbs2,891 lbs
31Formaldehyde50-00-02,284 lbs0 lbs2,284 lbs
32Acrylonitrile107-13-12,224 lbs0 lbs2,224 lbs
33Phenol108-95-2815 lbs1,155 lbs1,970 lbs
34Propylene oxide75-56-91,829 lbs0 lbs1,829 lbs
35Formic acid64-18-61,406 lbs0 lbs1,406 lbs
36Styrene100-42-51,319 lbs0 lbs1,319 lbs
37Hydrogen fluoride7664-39-3229 lbs0 lbs299 lbs
38Chlorine7782-50-5268 lbs0 lbs268 lbs
39Mercury compoundsN458165 lbs1 lbs166 lbs
40Nickel7440-02-0120 lbs0 lbs120 lbs
41Mercury7439-97-6106 lbs0 lbs106 lbs
42Mercury And Mercury CompoundsN45897 lbs0 lbs97 lbs
43Certain glycol ethersN23080 lbs0 lbs80 lbs
44Manganese7439-96-570 lbs0 lbs70 lbs
45Isoprene78-79-560 lbs0 lbs60 lbs
46Lead compoundsN4208 lbs51 lbs59 lbs
47Chromium7440-47-340 lbs0 lbs40 lbs
48C.I. Food Red 1581-88-940 lbs0 lbs40 lbs
49Anthracene120-12-731 lbs0 lbs31 lbs
50Chromium compounds (except for chromite ore mined in the Transvaal Region)N09011 lbs0 lbs11 lbs
51Benzo[g,h,i]perylene191-24-23 lbs7 lbs11 lbs
52Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0908 lbs0 lbs8 lbs
53Lead And Lead CompoundsN4202 lbs6 lbs8 lbs
📋
Top chemicals released near this property (2024 only):
Ammonia, Hydrogen cyanide, n-Hexane, Xylene (mixed isomers), Propylene
View the full list of 41 chemicals reported within 2 miles for 2024.
Chemicals Released (2024 Only)(41 chemicals)
#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Ammonia7664-41-788,712 lbs0 lbs88,712 lbs
2Hydrogen cyanide74-90-873,728 lbs0 lbs73,728 lbs
3n-Hexane110-54-342,461 lbs0 lbs42,565 lbs
4Xylene (mixed isomers)1330-20-735,224 lbs28 lbs35,535 lbs
5Propylene115-07-134,344 lbs0 lbs34,344 lbs
6Toluene108-88-321,684 lbs14 lbs21,803 lbs
7Benzene71-43-220,326 lbs114 lbs20,471 lbs
8Ethylene74-85-117,246 lbs0 lbs17,246 lbs
9Methanol67-56-115,730 lbs0 lbs15,730 lbs
10Hydrogen sulfide7783-06-414,345 lbs0 lbs14,345 lbs
11Diethanolamine111-42-210,092 lbs0 lbs10,092 lbs
12Vinyl acetate108-05-45,850 lbs0 lbs5,850 lbs
13Ethylbenzene100-41-44,112 lbs13 lbs4,195 lbs
14Cyclohexane110-82-74,171 lbs0 lbs4,189 lbs
151,2,4-Trimethylbenzene95-63-61,381 lbs0 lbs1,590 lbs
16Naphthalene91-20-31,370 lbs7 lbs1,400 lbs
171,3-Butadiene106-99-0984 lbs0 lbs984 lbs
18Dimethylamine124-40-3864 lbs0 lbs864 lbs
19Cumene98-82-8556 lbs0 lbs562 lbs
20Ethylene glycol107-21-1529 lbs0 lbs529 lbs
21Polycyclic aromatic compoundsN590354 lbs55 lbs409 lbs
22Acrylonitrile107-13-1278 lbs0 lbs278 lbs
23Phenol108-95-2255 lbs8 lbs263 lbs
24Propylene oxide75-56-9255 lbs0 lbs255 lbs
25Formaldehyde50-00-0255 lbs0 lbs255 lbs
26Formic acid64-18-6189 lbs0 lbs189 lbs
27Styrene100-42-5110 lbs0 lbs110 lbs
28Zinc compoundsN98222 lbs32 lbs54 lbs
29Acetaldehyde75-07-045 lbs0 lbs45 lbs
30Biphenyl92-52-433 lbs0 lbs33 lbs
31Manganese7439-96-530 lbs0 lbs30 lbs
32Chromium7440-47-325 lbs0 lbs25 lbs
33Chlorine7782-50-525 lbs0 lbs25 lbs
34Nickel7440-02-024 lbs0 lbs24 lbs
35Mercury And Mercury CompoundsN45821 lbs0 lbs21 lbs
36Certain glycol ethersN23010 lbs0 lbs10 lbs
37Isoprene78-79-58 lbs0 lbs8 lbs
38Mercury7439-97-67 lbs0 lbs7 lbs
39Lead And Lead CompoundsN4200 lbs5 lbs6 lbs
40Benzo[g,h,i]perylene191-24-20 lbs5 lbs5 lbs
41Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0902 lbs0 lbs2 lbs
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