Data-driven insights for local properties

Complete Property Analysis

Environmental risk, tax analysis, and property details for 5001 Underwood Rd, Pasadena, TX 77507

HCAD #1005150000707
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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
5001 Underwood Rd, Pasadena, TX 77507
Elevation
17.23 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)
27.07 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)
$465,679
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
11.0th 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)
6.58 millionlbs
Extremely High
1008.6x more than typical Houston property
≈ 329 dump trucks of chemicals within 2 miles
Air Pollution (10 Years)
6.56 millionlbs
Extremely High
1361.1x 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
22
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)6,580,100 lbs6,563,764 lbs16,336 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)511,512 lbs510,237 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 72 chemicals below.
Chemicals Released (2014-2024, 10-Year Total)(72 chemicals)
#ChemicalCAS#Air (lbs/10yr)Water (lbs/10yr)Total (lbs/10yr)
1n-Hexane110-54-31,215,336 lbs0 lbs1,215,336 lbs
2Ethylene74-85-11,117,038 lbs0 lbs1,117,038 lbs
3Methanol67-56-1690,654 lbs0 lbs697,181 lbs
4Ammonia7664-41-7650,931 lbs123 lbs651,074 lbs
5Vinyl acetate108-05-4516,353 lbs0 lbs516,353 lbs
6Toluene108-88-3434,759 lbs0 lbs434,759 lbs
7Nitric acid7697-37-2397,668 lbs55 lbs397,748 lbs
8Ethylene oxide75-21-8156,220 lbs0 lbs156,220 lbs
9Ethylene glycol107-21-1142,384 lbs0 lbs142,384 lbs
10Butyl acrylate141-32-2112,617 lbs0 lbs112,617 lbs
11Acetaldehyde75-07-0107,268 lbs0 lbs107,268 lbs
12Acrylic acid79-10-799,607 lbs0 lbs99,607 lbs
13n-Butyl alcohol71-36-398,902 lbs0 lbs98,902 lbs
14N,N-Dimethylformamide68-12-286,451 lbs0 lbs86,451 lbs
15Acrylonitrile107-13-184,414 lbs0 lbs84,414 lbs
16Styrene100-42-574,871 lbs0 lbs74,871 lbs
17Propylene115-07-161,094 lbs0 lbs61,094 lbs
181,3-Butadiene106-99-059,009 lbs0 lbs59,009 lbs
19Methyl methacrylate80-62-657,262 lbs0 lbs57,262 lbs
20Certain glycol ethersN23049,151 lbs0 lbs49,152 lbs
21Molybdenum trioxide1313-27-537,655 lbs3,227 lbs40,897 lbs
22Chlorodifluoromethane (HCFC-22)75-45-638,792 lbs0 lbs38,792 lbs
23Ethyl acrylate140-88-537,097 lbs0 lbs37,097 lbs
24Hydrogen sulfide7783-06-431,678 lbs0 lbs31,678 lbs
25Phenol108-95-230,497 lbs0 lbs30,497 lbs
26Methyl acrylate96-33-323,024 lbs0 lbs23,024 lbs
27tert-Butyl alcohol75-65-020,711 lbs0 lbs20,711 lbs
28Xylene (mixed isomers)1330-20-717,096 lbs0 lbs17,096 lbs
29Chlorine7782-50-515,132 lbs0 lbs15,132 lbs
30Nickel compoundsN49511,795 lbs1,904 lbs13,714 lbs
312-Methoxyethanol109-86-411,669 lbs0 lbs11,669 lbs
32Nitrate compounds (water dissociable; reportable only when in aqueous solution)N51130 lbs9,885 lbs9,930 lbs
33Chloroethane75-00-39,070 lbs0 lbs9,070 lbs
34Cobalt compoundsN0965,871 lbs886 lbs6,772 lbs
352-Ethoxyethanol110-80-56,044 lbs0 lbs6,044 lbs
36Ethylbenzene100-41-45,307 lbs0 lbs5,307 lbs
37Methyl iodide74-88-45,089 lbs0 lbs5,089 lbs
38Cumene98-82-85,060 lbs0 lbs5,060 lbs
39Diphenylamine122-39-44,941 lbs0 lbs4,941 lbs
40Nickel And Nickel CompoundsN4954,878 lbs62 lbs4,940 lbs
41Formaldehyde50-00-04,642 lbs102 lbs4,744 lbs
42Cobalt And Cobalt CompoundsN0964,551 lbs42 lbs4,593 lbs
43Dimethylamine124-40-33,754 lbs0 lbs3,754 lbs
44Propylene oxide75-56-92,606 lbs0 lbs2,606 lbs
45Acrolein107-02-82,268 lbs0 lbs2,268 lbs
46Hydroquinone123-31-92,263 lbs0 lbs2,263 lbs
47Maleic anhydride108-31-61,577 lbs0 lbs1,577 lbs
48Allyl alcohol107-18-61,569 lbs0 lbs1,569 lbs
49Allyl chloride107-05-11,277 lbs0 lbs1,277 lbs
501,2,4-Trimethylbenzene95-63-61,065 lbs0 lbs1,065 lbs
51NonylphenolN5301,013 lbs0 lbs1,013 lbs
52Nonylphenol EthoxylatesN5351,008 lbs0 lbs1,008 lbs
53Cyclohexane110-82-7857 lbs0 lbs857 lbs
54Benzoyl chloride98-88-4469 lbs0 lbs469 lbs
55Hydrazine302-01-2437 lbs0 lbs437 lbs
56Lead And Lead CompoundsN420211 lbs10 lbs221 lbs
57Barium compounds (except for barium sulfate (CAS No. 7727-43-7))N040145 lbs30 lbs175 lbs
58Bifenthrin82657-04-3149 lbs0 lbs149 lbs
59Lead compoundsN420138 lbs4 lbs142 lbs
60Copper compoundsN100132 lbs6 lbs138 lbs
61Naphthalene91-20-396 lbs0 lbs96 lbs
62Cyanide compoundsN1065 lbs0 lbs58 lbs
63Chloromethane74-87-351 lbs0 lbs51 lbs
64Cumene hydroperoxide80-15-926 lbs0 lbs26 lbs
65Oxyfluorfen42874-03-310 lbs0 lbs10 lbs
664,4'-Diaminodiphenyl ether101-80-46 lbs0 lbs6 lbs
67Zinc compoundsN9825 lbs0 lbs5 lbs
68Bis(2-chloroethyl) ether111-44-43 lbs0 lbs3 lbs
69Manganese And Manganese CompoundsN4503 lbs0 lbs3 lbs
70Nickel7440-02-02 lbs0 lbs2 lbs
71Formic acid64-18-61 lbs0 lbs1 lbs
72Boron 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 55 chemicals reported within 2 miles for 2024.
Chemicals Released (2024 Only)(55 chemicals)
#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Ethylene74-85-1128,986 lbs0 lbs128,986 lbs
2n-Hexane110-54-3124,052 lbs0 lbs124,052 lbs
3Ammonia7664-41-778,519 lbs5 lbs78,524 lbs
4Methanol67-56-132,154 lbs0 lbs32,154 lbs
5Vinyl acetate108-05-419,007 lbs0 lbs19,007 lbs
6Ethylene glycol107-21-114,421 lbs0 lbs14,421 lbs
7Toluene108-88-314,342 lbs0 lbs14,342 lbs
8Acrylic acid79-10-711,701 lbs0 lbs11,701 lbs
9Ethylene oxide75-21-811,137 lbs0 lbs11,137 lbs
10Nitric acid7697-37-29,490 lbs5 lbs9,495 lbs
11N,N-Dimethylformamide68-12-27,763 lbs0 lbs7,763 lbs
12Butyl acrylate141-32-26,270 lbs0 lbs6,270 lbs
13Methyl methacrylate80-62-66,109 lbs0 lbs6,109 lbs
14Acetaldehyde75-07-04,422 lbs0 lbs4,422 lbs
15Hydrogen sulfide7783-06-43,596 lbs0 lbs3,596 lbs
16Certain glycol ethersN2303,532 lbs0 lbs3,532 lbs
17Ethyl acrylate140-88-53,477 lbs0 lbs3,477 lbs
18Chloroethane75-00-33,424 lbs0 lbs3,424 lbs
19Molybdenum trioxide1313-27-52,770 lbs482 lbs3,252 lbs
20Methyl acrylate96-33-32,867 lbs0 lbs2,867 lbs
21n-Butyl alcohol71-36-32,825 lbs0 lbs2,825 lbs
22Propylene115-07-12,064 lbs0 lbs2,064 lbs
23Phenol108-95-21,875 lbs0 lbs1,875 lbs
24Hydroquinone123-31-91,723 lbs0 lbs1,723 lbs
25Styrene100-42-51,550 lbs0 lbs1,550 lbs
26Chlorine7782-50-51,293 lbs0 lbs1,293 lbs
27tert-Butyl alcohol75-65-01,238 lbs0 lbs1,238 lbs
28Acrolein107-02-81,224 lbs0 lbs1,224 lbs
291,3-Butadiene106-99-01,172 lbs0 lbs1,172 lbs
30Nickel compoundsN4951,017 lbs108 lbs1,125 lbs
312-Methoxyethanol109-86-41,027 lbs0 lbs1,027 lbs
32Formaldehyde50-00-0966 lbs0 lbs966 lbs
33Methyl iodide74-88-4958 lbs0 lbs958 lbs
34Xylene (mixed isomers)1330-20-7635 lbs0 lbs635 lbs
35Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs622 lbs622 lbs
36Cobalt compoundsN096455 lbs36 lbs491 lbs
372-Ethoxyethanol110-80-5407 lbs0 lbs407 lbs
38Dimethylamine124-40-3341 lbs0 lbs341 lbs
39Ethylbenzene100-41-4275 lbs0 lbs275 lbs
40Cumene98-82-8210 lbs0 lbs210 lbs
41Maleic anhydride108-31-6186 lbs0 lbs186 lbs
42Allyl chloride107-05-1165 lbs0 lbs165 lbs
43Nonylphenol EthoxylatesN535131 lbs0 lbs131 lbs
441,2,4-Trimethylbenzene95-63-699 lbs0 lbs99 lbs
45Nickel And Nickel CompoundsN49582 lbs8 lbs90 lbs
46Cobalt And Cobalt CompoundsN09682 lbs8 lbs90 lbs
47Propylene oxide75-56-970 lbs0 lbs70 lbs
48Hydrazine302-01-239 lbs0 lbs39 lbs
49Benzoyl chloride98-88-433 lbs0 lbs33 lbs
50Cyclohexane110-82-724 lbs0 lbs24 lbs
51Lead And Lead CompoundsN42016 lbs1 lbs17 lbs
52Naphthalene91-20-312 lbs0 lbs12 lbs
53Manganese And Manganese CompoundsN4503 lbs0 lbs3 lbs
54Diphenylamine122-39-42 lbs0 lbs2 lbs
55NonylphenolN5301 lbs0 lbs1 lbs
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