Data-driven insights for local properties

Complete Property Analysis

Environmental risk, tax analysis, and property details for 4311 Malone Dr, Pasadena, TX 77507

HCAD #1311800030013
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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
4311 Malone Dr, Pasadena, TX 77507
Elevation
20.66 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)
30.50 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)
$13,175,375
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
10.7th 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)
7.08 millionlbs
Extremely High
1085.2x more than typical Houston property
≈ 354 dump trucks of chemicals within 2 miles
Air Pollution (10 Years)
7.06 millionlbs
Extremely High
1464.8x more than typical Houston property
Includes fugitive emissions (leaks) and stack emissions (smokestacks).
Water Pollution (10 Years)
16 thousandlbs
Extremely High
Discharges to bayous, streams, and drainage systems.
Facilities Nearby
28
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)7,080,033 lbs7,063,697 lbs16,336 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)558,606 lbs557,331 lbs1,275 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):
n-Hexane, Ethylene, Methanol, Ammonia, Vinyl acetate
View the full list of 75 chemicals below.
Chemicals Released (2014-2024, 10-Year Total)(75 chemicals)
#ChemicalCAS#Air (lbs/10yr)Water (lbs/10yr)Total (lbs/10yr)
1n-Hexane110-54-31,215,336 lbs0 lbs1,215,336 lbs
2Ethylene74-85-11,139,895 lbs0 lbs1,139,895 lbs
3Methanol67-56-1852,924 lbs0 lbs859,451 lbs
4Ammonia7664-41-7756,594 lbs123 lbs756,737 lbs
5Vinyl acetate108-05-4538,659 lbs0 lbs538,659 lbs
6Toluene108-88-3434,759 lbs0 lbs434,759 lbs
7Nitric acid7697-37-2397,668 lbs55 lbs397,748 lbs
8Ethylene oxide75-21-8157,651 lbs0 lbs157,651 lbs
9Ethylene glycol107-21-1142,398 lbs0 lbs142,398 lbs
10Acetaldehyde75-07-0119,524 lbs0 lbs119,524 lbs
11Butyl acrylate141-32-2112,622 lbs0 lbs112,622 lbs
12Acrylic acid79-10-7103,139 lbs0 lbs103,139 lbs
13n-Butyl alcohol71-36-398,902 lbs0 lbs98,902 lbs
14Propylene115-07-197,894 lbs0 lbs97,894 lbs
15N,N-Dimethylformamide68-12-286,451 lbs0 lbs86,451 lbs
16Acrylonitrile107-13-184,414 lbs0 lbs84,414 lbs
17Styrene100-42-582,215 lbs0 lbs82,215 lbs
18Methyl methacrylate80-62-660,312 lbs0 lbs60,312 lbs
191,3-Butadiene106-99-059,009 lbs0 lbs59,009 lbs
20Certain glycol ethersN23049,151 lbs0 lbs49,152 lbs
21Hydroquinone123-31-944,758 lbs0 lbs44,758 lbs
22Molybdenum trioxide1313-27-537,655 lbs3,227 lbs40,897 lbs
23Chlorodifluoromethane (HCFC-22)75-45-638,792 lbs0 lbs38,792 lbs
24Ethyl acrylate140-88-537,097 lbs0 lbs37,097 lbs
25Methyl isobutyl ketone108-10-136,313 lbs0 lbs36,313 lbs
26Cumene98-82-836,156 lbs0 lbs36,156 lbs
27Hydrogen sulfide7783-06-431,678 lbs0 lbs31,678 lbs
28Phenol108-95-230,497 lbs0 lbs30,497 lbs
29Methyl acrylate96-33-323,024 lbs0 lbs23,024 lbs
30tert-Butyl alcohol75-65-020,711 lbs0 lbs20,711 lbs
31Xylene (mixed isomers)1330-20-717,096 lbs0 lbs17,096 lbs
32Chlorine7782-50-515,132 lbs0 lbs15,132 lbs
33Nickel compoundsN49511,795 lbs1,905 lbs13,715 lbs
342-Methoxyethanol109-86-411,669 lbs0 lbs11,669 lbs
35Benzene71-43-210,536 lbs0 lbs10,536 lbs
36Nitrate compounds (water dissociable; reportable only when in aqueous solution)N51130 lbs9,885 lbs9,930 lbs
37Chloroethane75-00-39,070 lbs0 lbs9,070 lbs
38Cobalt compoundsN0965,871 lbs886 lbs6,772 lbs
392-Ethoxyethanol110-80-56,044 lbs0 lbs6,044 lbs
40Diphenylamine122-39-45,938 lbs0 lbs5,938 lbs
41Ethylbenzene100-41-45,307 lbs0 lbs5,307 lbs
42Methyl iodide74-88-45,089 lbs0 lbs5,089 lbs
43Nickel And Nickel CompoundsN4954,878 lbs62 lbs4,940 lbs
44Formaldehyde50-00-04,642 lbs102 lbs4,744 lbs
45Cobalt And Cobalt CompoundsN0964,551 lbs42 lbs4,593 lbs
46Dimethylamine124-40-33,754 lbs0 lbs3,754 lbs
47Propylene oxide75-56-92,977 lbs0 lbs2,977 lbs
48Acrolein107-02-82,268 lbs0 lbs2,268 lbs
49Maleic anhydride108-31-61,577 lbs0 lbs1,577 lbs
50Allyl alcohol107-18-61,569 lbs0 lbs1,569 lbs
51Allyl chloride107-05-11,277 lbs0 lbs1,277 lbs
521,2,4-Trimethylbenzene95-63-61,065 lbs0 lbs1,065 lbs
53NonylphenolN5301,013 lbs0 lbs1,013 lbs
54Nonylphenol EthoxylatesN5351,008 lbs0 lbs1,008 lbs
55Cyclohexane110-82-7857 lbs0 lbs857 lbs
56Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-9597 lbs0 lbs597 lbs
57Benzoyl chloride98-88-4469 lbs0 lbs469 lbs
58Hydrazine302-01-2437 lbs0 lbs437 lbs
59Lead And Lead CompoundsN420211 lbs10 lbs221 lbs
60Barium compounds (except for barium sulfate (CAS No. 7727-43-7))N040145 lbs30 lbs175 lbs
61Bifenthrin82657-04-3149 lbs0 lbs149 lbs
62Lead compoundsN420138 lbs4 lbs142 lbs
63Copper compoundsN100132 lbs6 lbs138 lbs
64Naphthalene91-20-396 lbs0 lbs96 lbs
65Cyanide compoundsN1065 lbs0 lbs58 lbs
66Chloromethane74-87-351 lbs0 lbs51 lbs
67Cumene hydroperoxide80-15-926 lbs0 lbs26 lbs
68Oxyfluorfen42874-03-310 lbs0 lbs10 lbs
694,4'-Diaminodiphenyl ether101-80-46 lbs0 lbs6 lbs
70Zinc compoundsN9825 lbs0 lbs5 lbs
71Bis(2-chloroethyl) ether111-44-43 lbs0 lbs3 lbs
72Manganese And Manganese CompoundsN4503 lbs0 lbs3 lbs
73Nickel7440-02-02 lbs0 lbs2 lbs
74Formic acid64-18-61 lbs0 lbs1 lbs
75Boron trifluoride7637-07-21 lbs0 lbs1 lbs
📋
Top chemicals released near this property (2024 only):
Ethylene, n-Hexane, Ammonia, Methanol, Vinyl acetate
View the full list of 57 chemicals reported within 2 miles for 2024.
Chemicals Released (2024 Only)(57 chemicals)
#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Ethylene74-85-1129,665 lbs0 lbs129,665 lbs
2n-Hexane110-54-3124,052 lbs0 lbs124,052 lbs
3Ammonia7664-41-787,209 lbs5 lbs87,214 lbs
4Methanol67-56-143,098 lbs0 lbs43,098 lbs
5Vinyl acetate108-05-421,425 lbs0 lbs21,425 lbs
6Ethylene glycol107-21-114,424 lbs0 lbs14,424 lbs
7Toluene108-88-314,342 lbs0 lbs14,342 lbs
8Propylene115-07-112,098 lbs0 lbs12,098 lbs
9Acrylic acid79-10-711,887 lbs0 lbs11,887 lbs
10Ethylene oxide75-21-811,557 lbs0 lbs11,557 lbs
11Nitric acid7697-37-29,490 lbs5 lbs9,495 lbs
12N,N-Dimethylformamide68-12-27,763 lbs0 lbs7,763 lbs
13Hydroquinone123-31-96,585 lbs0 lbs6,585 lbs
14Methyl methacrylate80-62-66,496 lbs0 lbs6,496 lbs
15Butyl acrylate141-32-26,270 lbs0 lbs6,270 lbs
16Acetaldehyde75-07-04,916 lbs0 lbs4,916 lbs
17Methyl isobutyl ketone108-10-13,997 lbs0 lbs3,997 lbs
18Hydrogen sulfide7783-06-43,596 lbs0 lbs3,596 lbs
19Certain glycol ethersN2303,532 lbs0 lbs3,532 lbs
20Ethyl acrylate140-88-53,477 lbs0 lbs3,477 lbs
21Chloroethane75-00-33,424 lbs0 lbs3,424 lbs
22Molybdenum trioxide1313-27-52,770 lbs482 lbs3,252 lbs
23Methyl acrylate96-33-32,867 lbs0 lbs2,867 lbs
24n-Butyl alcohol71-36-32,825 lbs0 lbs2,825 lbs
25Cumene98-82-82,822 lbs0 lbs2,822 lbs
26Phenol108-95-21,875 lbs0 lbs1,875 lbs
27Styrene100-42-51,666 lbs0 lbs1,666 lbs
28Chlorine7782-50-51,293 lbs0 lbs1,293 lbs
29tert-Butyl alcohol75-65-01,238 lbs0 lbs1,238 lbs
30Acrolein107-02-81,224 lbs0 lbs1,224 lbs
311,3-Butadiene106-99-01,172 lbs0 lbs1,172 lbs
32Nickel compoundsN4951,017 lbs108 lbs1,125 lbs
33Benzene71-43-21,090 lbs0 lbs1,090 lbs
342-Methoxyethanol109-86-41,027 lbs0 lbs1,027 lbs
35Formaldehyde50-00-0966 lbs0 lbs966 lbs
36Methyl iodide74-88-4958 lbs0 lbs958 lbs
37Xylene (mixed isomers)1330-20-7635 lbs0 lbs635 lbs
38Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs622 lbs622 lbs
39Cobalt compoundsN096455 lbs36 lbs491 lbs
402-Ethoxyethanol110-80-5407 lbs0 lbs407 lbs
41Dimethylamine124-40-3341 lbs0 lbs341 lbs
42Ethylbenzene100-41-4275 lbs0 lbs275 lbs
43Maleic anhydride108-31-6186 lbs0 lbs186 lbs
44Allyl chloride107-05-1165 lbs0 lbs165 lbs
45Nonylphenol EthoxylatesN535131 lbs0 lbs131 lbs
46Propylene oxide75-56-9130 lbs0 lbs130 lbs
47Diphenylamine122-39-4105 lbs0 lbs105 lbs
481,2,4-Trimethylbenzene95-63-699 lbs0 lbs99 lbs
49Nickel And Nickel CompoundsN49582 lbs8 lbs90 lbs
50Cobalt And Cobalt CompoundsN09682 lbs8 lbs90 lbs
51Hydrazine302-01-239 lbs0 lbs39 lbs
52Benzoyl chloride98-88-433 lbs0 lbs33 lbs
53Cyclohexane110-82-724 lbs0 lbs24 lbs
54Lead And Lead CompoundsN42016 lbs1 lbs17 lbs
55Naphthalene91-20-312 lbs0 lbs12 lbs
56Manganese And Manganese CompoundsN4503 lbs0 lbs3 lbs
57NonylphenolN5301 lbs0 lbs1 lbs
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