Data-driven insights for local properties

Complete Property Analysis

Environmental risk, tax analysis, and property details for 3216 Fern St, Pasadena, TX 77503

HCAD #0830430000006
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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
3216 Fern St, Pasadena, TX 77503
Building Size
1,332sqft
Total structure area from HCAD building records.
Elevation
28.82 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)
38.67 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)
$72,532
Based on HCAD building value of $111,588.
Depth-Damage (Neighborhood)
$63,913
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
11.6th percentile
Property Pollution Ranking
High
Higher pollution than 88% of Houston homes
Compares pollution within 2mi against 10,000 Houston properties. Lower percentiles = higher pollution.
Industrial Pollution Nearby (10 Years)
4.92 millionlbs
Extremely High
754.0x more than typical Houston property
≈ 246 dump trucks of chemicals within 2 miles
Air Pollution (10 Years)
3.86 millionlbs
Extremely High
799.5x more than typical Houston property
Includes fugitive emissions (leaks) and stack emissions (smokestacks).
Water Pollution (10 Years)
1.06 millionlbs
Extremely High
Discharges to bayous, streams, and drainage systems.
Facilities Nearby
16
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)4,919,297 lbs3,855,308 lbs1,063,988 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)421,260 lbs347,262 lbs73,998 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 88% 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, Nitrate compounds (water dissociable; reportable only when in aqueous solution), Cumene, Methanol, n-Hexane
View the full list of 54 chemicals below.
Chemicals Released (2014-2024, 10-Year Total)(54 chemicals)
#ChemicalCAS#Air (lbs/10yr)Water (lbs/10yr)Total (lbs/10yr)
1Ethylene74-85-11,060,638 lbs0 lbs1,060,638 lbs
2Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs1,038,744 lbs1,038,744 lbs
3Cumene98-82-8518,059 lbs11 lbs518,071 lbs
4Methanol67-56-1451,229 lbs7,563 lbs458,792 lbs
5n-Hexane110-54-3412,892 lbs170 lbs413,063 lbs
6Propylene115-07-1288,871 lbs0 lbs288,871 lbs
7Acetophenone98-86-2206,492 lbs3,645 lbs210,136 lbs
8Benzene71-43-2171,685 lbs27 lbs171,714 lbs
9Vinyl chloride75-01-4166,976 lbs14 lbs166,990 lbs
10Ammonia7664-41-7113,823 lbs2,681 lbs116,504 lbs
11Acetaldehyde75-07-098,856 lbs3,956 lbs102,812 lbs
12Vinyl acetate108-05-470,754 lbs0 lbs70,754 lbs
13Toluene108-88-353,613 lbs27 lbs53,649 lbs
14Xylene (mixed isomers)1330-20-748,626 lbs33 lbs48,668 lbs
151,2,4-Trimethylbenzene95-63-640,441 lbs105 lbs40,549 lbs
16Isobutyraldehyde78-84-228,404 lbs0 lbs28,404 lbs
17Butyraldehyde123-72-823,130 lbs0 lbs23,130 lbs
18Boron trifluoride7637-07-214,843 lbs0 lbs14,843 lbs
19Zinc compoundsN9827,485 lbs6,851 lbs14,336 lbs
20Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-013,680 lbs0 lbs13,680 lbs
21Phenol108-95-213,534 lbs4 lbs13,538 lbs
22Ethylbenzene100-41-46,973 lbs22 lbs6,997 lbs
23Dimethylamine124-40-36,912 lbs0 lbs6,912 lbs
24Chlorine7782-50-56,477 lbs0 lbs6,477 lbs
25Ethylene glycol107-21-14,073 lbs0 lbs4,073 lbs
26n-Butyl alcohol71-36-34,032 lbs0 lbs4,032 lbs
27Phthalic anhydride85-44-93,545 lbs0 lbs3,545 lbs
28Formaldehyde50-00-03,345 lbs0 lbs3,345 lbs
29Acrylonitrile107-13-12,224 lbs0 lbs2,224 lbs
30o-Cresol95-48-71,985 lbs0 lbs1,985 lbs
31Propylene oxide75-56-91,829 lbs0 lbs1,829 lbs
32Maleic anhydride108-31-61,686 lbs0 lbs1,686 lbs
33Formic acid64-18-61,406 lbs0 lbs1,406 lbs
34o-Xylene95-47-61,330 lbs0 lbs1,330 lbs
35Cyclohexane110-82-71,073 lbs0 lbs1,073 lbs
36Manganese compoundsN4501,064 lbs0 lbs1,064 lbs
37Naphthalene91-20-31,012 lbs21 lbs1,034 lbs
381,3-Butadiene106-99-0938 lbs0 lbs938 lbs
39Lead compoundsN420288 lbs22 lbs309 lbs
40Manganese And Manganese CompoundsN450309 lbs0 lbs309 lbs
41Diethanolamine111-42-2205 lbs0 lbs205 lbs
421,2-Dibromoethane106-93-4133 lbs0 lbs133 lbs
431,2-Dichloroethane107-06-2127 lbs0 lbs127 lbs
44Diphenylamine122-39-4126 lbs0 lbs126 lbs
45Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-996 lbs0 lbs96 lbs
46Lead And Lead CompoundsN42055 lbs22 lbs78 lbs
47Chromium7440-47-30 lbs33 lbs33 lbs
48Nickel7440-02-00 lbs31 lbs31 lbs
49Certain glycol ethersN23012 lbs0 lbs12 lbs
50Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N09011 lbs0 lbs11 lbs
51Methyl tert-butyl ether1634-04-42 lbs5 lbs10 lbs
52Polycyclic aromatic compoundsN5902 lbs2 lbs4 lbs
53Piperonyl butoxide51-03-64 lbs0 lbs4 lbs
54Mercury And Mercury CompoundsN4581 lbs0 lbs1 lbs
📋
Top chemicals released near this property (2024 only):
Ethylene, Nitrate compounds (water dissociable; reportable only when in aqueous solution), Propylene, Cumene, Benzene
View the full list of 44 chemicals reported within 2 miles for 2024.
Chemicals Released (2024 Only)(44 chemicals)
#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Ethylene74-85-1115,347 lbs0 lbs115,347 lbs
2Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs72,435 lbs72,435 lbs
3Propylene115-07-157,757 lbs0 lbs57,757 lbs
4Cumene98-82-835,001 lbs0 lbs35,001 lbs
5Benzene71-43-219,530 lbs2 lbs19,532 lbs
6Methanol67-56-119,060 lbs336 lbs19,396 lbs
7Acetophenone98-86-217,719 lbs350 lbs18,069 lbs
8Vinyl chloride75-01-413,207 lbs1 lbs13,208 lbs
9Ammonia7664-41-712,947 lbs0 lbs12,947 lbs
10n-Hexane110-54-312,725 lbs0 lbs12,725 lbs
11Acetaldehyde75-07-08,345 lbs380 lbs8,725 lbs
12Vinyl acetate108-05-45,850 lbs0 lbs5,850 lbs
13Phenol108-95-24,579 lbs0 lbs4,579 lbs
14Isobutyraldehyde78-84-24,431 lbs0 lbs4,431 lbs
151,2,4-Trimethylbenzene95-63-64,078 lbs0 lbs4,078 lbs
16Xylene (mixed isomers)1330-20-73,736 lbs5 lbs3,741 lbs
17Toluene108-88-33,102 lbs3 lbs3,105 lbs
18Butyraldehyde123-72-82,507 lbs0 lbs2,507 lbs
19Boron trifluoride7637-07-21,178 lbs0 lbs1,178 lbs
20Zinc compoundsN982678 lbs476 lbs1,154 lbs
21Dimethylamine124-40-3864 lbs0 lbs864 lbs
22n-Butyl alcohol71-36-3638 lbs0 lbs638 lbs
23Ethylene glycol107-21-1588 lbs0 lbs588 lbs
24Chlorine7782-50-5487 lbs0 lbs487 lbs
25Ethylbenzene100-41-4427 lbs3 lbs430 lbs
26Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-0395 lbs0 lbs395 lbs
27Formaldehyde50-00-0354 lbs0 lbs354 lbs
281,3-Butadiene106-99-0295 lbs0 lbs295 lbs
29Acrylonitrile107-13-1278 lbs0 lbs278 lbs
30Propylene oxide75-56-9255 lbs0 lbs255 lbs
31Cyclohexane110-82-7232 lbs0 lbs232 lbs
32Formic acid64-18-6189 lbs0 lbs189 lbs
33Naphthalene91-20-3132 lbs1 lbs133 lbs
34Maleic anhydride108-31-6132 lbs0 lbs132 lbs
35Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-996 lbs0 lbs96 lbs
36o-Cresol95-48-788 lbs0 lbs88 lbs
37Diphenylamine122-39-423 lbs0 lbs23 lbs
38Lead And Lead CompoundsN4208 lbs1 lbs9 lbs
391,2-Dibromoethane106-93-44 lbs0 lbs4 lbs
40Nickel7440-02-00 lbs2 lbs2 lbs
41Chromium7440-47-30 lbs2 lbs2 lbs
42Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0901 lbs0 lbs1 lbs
43Certain glycol ethersN2301 lbs0 lbs1 lbs
44Polycyclic aromatic compoundsN5900 lbs0 lbs1 lbs
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