Data-driven insights for local properties

Complete Property Analysis

Environmental risk, tax analysis, and property details for 5761 Underwood Rd, Pasadena, TX 77507

HCAD #0410030000130
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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
5761 Underwood Rd, Pasadena, TX 77507
Elevation
16.12 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)
25.96 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)
$0
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
10.5th percentile
Property Pollution Ranking
High
Higher pollution than 90% of Houston homes
Compares pollution within 2mi against 10,000 Houston properties. Lower percentiles = higher pollution.
Industrial Pollution Nearby (10 Years)
7.45 millionlbs
Extremely High
1142.2x more than typical Houston property
≈ 373 dump trucks of chemicals within 2 miles
Air Pollution (10 Years)
7.42 millionlbs
Extremely High
1539.0x more than typical Houston property
Includes fugitive emissions (leaks) and stack emissions (smokestacks).
Water Pollution (10 Years)
31 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)7,452,206 lbs7,421,358 lbs30,848 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)597,379 lbs594,040 lbs3,339 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 90% 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, Ammonia, Methanol, Toluene
View the full list of 84 chemicals below.
Chemicals Released (2014-2024, 10-Year Total)(84 chemicals)
#ChemicalCAS#Air (lbs/10yr)Water (lbs/10yr)Total (lbs/10yr)
1n-Hexane110-54-31,403,645 lbs0 lbs1,403,645 lbs
2Ethylene74-85-11,117,038 lbs0 lbs1,117,038 lbs
3Ammonia7664-41-7764,553 lbs123 lbs764,696 lbs
4Methanol67-56-1692,071 lbs0 lbs698,598 lbs
5Toluene108-88-3687,020 lbs0 lbs687,020 lbs
6Vinyl acetate108-05-4516,353 lbs0 lbs516,353 lbs
7Nitric acid7697-37-2398,305 lbs55 lbs398,385 lbs
8Ethylene glycol107-21-1178,756 lbs0 lbs178,756 lbs
9Ethylene oxide75-21-8156,220 lbs0 lbs156,220 lbs
10Methyl methacrylate80-62-6116,978 lbs0 lbs117,250 lbs
11Butyl acrylate141-32-2112,617 lbs0 lbs112,617 lbs
12n-Butyl alcohol71-36-3110,095 lbs0 lbs110,095 lbs
13Titanium tetrachloride7550-45-0108,195 lbs0 lbs108,195 lbs
14Acetaldehyde75-07-0107,268 lbs0 lbs107,268 lbs
15Acrylic acid79-10-799,607 lbs0 lbs99,607 lbs
16N,N-Dimethylformamide68-12-286,962 lbs0 lbs86,962 lbs
17Acrylonitrile107-13-184,414 lbs0 lbs84,414 lbs
18Styrene100-42-577,203 lbs0 lbs77,334 lbs
19Propylene115-07-172,744 lbs0 lbs72,744 lbs
20Molybdenum trioxide1313-27-561,969 lbs3,227 lbs65,211 lbs
211,3-Butadiene106-99-059,009 lbs0 lbs59,009 lbs
22Certain glycol ethersN23049,151 lbs0 lbs49,152 lbs
23Chlorodifluoromethane (HCFC-22)75-45-638,792 lbs0 lbs38,792 lbs
24Ethyl acrylate140-88-537,097 lbs0 lbs37,097 lbs
25Hydrogen sulfide7783-06-431,678 lbs0 lbs31,678 lbs
26Phenol108-95-230,497 lbs0 lbs30,497 lbs
27Nitrate compounds (water dissociable; reportable only when in aqueous solution)N51130 lbs24,032 lbs24,077 lbs
28Methyl acrylate96-33-323,024 lbs0 lbs23,024 lbs
29tert-Butyl alcohol75-65-020,711 lbs0 lbs20,711 lbs
30Xylene (mixed isomers)1330-20-717,107 lbs0 lbs17,107 lbs
31Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-015,293 lbs0 lbs15,293 lbs
32Chlorine7782-50-515,132 lbs0 lbs15,132 lbs
33Nickel compoundsN49513,184 lbs1,925 lbs15,124 lbs
342-Methoxyethanol109-86-411,669 lbs0 lbs11,669 lbs
35Chloroethane75-00-39,070 lbs0 lbs9,070 lbs
36Epichlorohydrin106-89-87,442 lbs0 lbs7,442 lbs
37Nickel And Nickel CompoundsN4957,116 lbs137 lbs7,253 lbs
38Cobalt compoundsN0966,325 lbs886 lbs7,226 lbs
39Maleic anhydride108-31-66,616 lbs0 lbs6,616 lbs
402-Ethoxyethanol110-80-56,044 lbs0 lbs6,044 lbs
41Dibutyl phthalate84-74-25,792 lbs0 lbs5,792 lbs
42Cobalt And Cobalt CompoundsN0965,292 lbs42 lbs5,334 lbs
43Ethylbenzene100-41-45,307 lbs0 lbs5,307 lbs
44Methyl iodide74-88-45,089 lbs0 lbs5,089 lbs
45Cumene98-82-85,060 lbs0 lbs5,060 lbs
46Diphenylamine122-39-44,941 lbs0 lbs4,941 lbs
47Formaldehyde50-00-04,642 lbs102 lbs4,744 lbs
48Isoprene78-79-54,016 lbs0 lbs4,016 lbs
49Dimethylamine124-40-33,754 lbs0 lbs3,754 lbs
50Propylene oxide75-56-92,606 lbs0 lbs2,606 lbs
51Acrolein107-02-82,268 lbs0 lbs2,268 lbs
52Hydroquinone123-31-92,263 lbs0 lbs2,263 lbs
53Vanadium compoundsN7702,177 lbs0 lbs2,177 lbs
54Vanadium (except when contained in an alloy)7440-62-21,691 lbs0 lbs1,691 lbs
55Allyl alcohol107-18-61,569 lbs0 lbs1,569 lbs
561,2,4-Trimethylbenzene95-63-61,325 lbs0 lbs1,325 lbs
57Allyl chloride107-05-11,277 lbs0 lbs1,277 lbs
58NonylphenolN5301,013 lbs0 lbs1,013 lbs
59Nonylphenol EthoxylatesN5351,008 lbs0 lbs1,008 lbs
60Cyclohexane110-82-7857 lbs0 lbs857 lbs
61Benzoyl chloride98-88-4469 lbs0 lbs469 lbs
62Hydrazine302-01-2437 lbs0 lbs437 lbs
63Zinc compoundsN9825 lbs233 lbs238 lbs
64Naphthalene91-20-3233 lbs0 lbs233 lbs
65Di(2-ethylhexyl) phthalate117-81-7222 lbs0 lbs222 lbs
66Lead And Lead CompoundsN420211 lbs10 lbs221 lbs
67Barium compounds (except for barium sulfate (CAS No. 7727-43-7))N040145 lbs30 lbs175 lbs
68Copper compoundsN100132 lbs24 lbs156 lbs
69Bifenthrin82657-04-3149 lbs0 lbs149 lbs
70Lead compoundsN420138 lbs4 lbs142 lbs
71Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N090101 lbs14 lbs115 lbs
72Cyanide compoundsN1065 lbs0 lbs58 lbs
73Chloromethane74-87-351 lbs0 lbs51 lbs
74Chromium compounds (except for chromite ore mined in the Transvaal Region)N09029 lbs4 lbs33 lbs
75Phthalic anhydride85-44-927 lbs0 lbs27 lbs
76Cumene hydroperoxide80-15-926 lbs0 lbs26 lbs
77Oxyfluorfen42874-03-310 lbs0 lbs10 lbs
784,4'-Diaminodiphenyl ether101-80-46 lbs0 lbs6 lbs
79Benzene71-43-25 lbs0 lbs5 lbs
80Bis(2-chloroethyl) ether111-44-43 lbs0 lbs3 lbs
81Manganese And Manganese CompoundsN4503 lbs0 lbs3 lbs
82Nickel7440-02-02 lbs0 lbs2 lbs
83Formic acid64-18-61 lbs0 lbs1 lbs
84Boron trifluoride7637-07-21 lbs0 lbs1 lbs
📋
Top chemicals released near this property (2024 only):
n-Hexane, Ethylene, Ammonia, Toluene, Methanol
View the full list of 63 chemicals reported within 2 miles for 2024.
Chemicals Released (2024 Only)(63 chemicals)
#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1n-Hexane110-54-3142,977 lbs0 lbs142,977 lbs
2Ethylene74-85-1128,986 lbs0 lbs128,986 lbs
3Ammonia7664-41-784,685 lbs5 lbs84,690 lbs
4Toluene108-88-338,494 lbs0 lbs38,494 lbs
5Methanol67-56-132,154 lbs0 lbs32,154 lbs
6Vinyl acetate108-05-419,007 lbs0 lbs19,007 lbs
7Methyl methacrylate80-62-618,415 lbs0 lbs18,415 lbs
8Ethylene glycol107-21-117,573 lbs0 lbs17,573 lbs
9Acrylic acid79-10-711,701 lbs0 lbs11,701 lbs
10Ethylene oxide75-21-811,137 lbs0 lbs11,137 lbs
11Titanium tetrachloride7550-45-010,755 lbs0 lbs10,755 lbs
12Nitric acid7697-37-210,123 lbs5 lbs10,128 lbs
13N,N-Dimethylformamide68-12-27,802 lbs0 lbs7,802 lbs
14Butyl acrylate141-32-26,270 lbs0 lbs6,270 lbs
15Molybdenum trioxide1313-27-54,613 lbs482 lbs5,095 lbs
16Acetaldehyde75-07-04,422 lbs0 lbs4,422 lbs
17Hydrogen sulfide7783-06-43,596 lbs0 lbs3,596 lbs
18Certain glycol ethersN2303,532 lbs0 lbs3,532 lbs
19Ethyl acrylate140-88-53,477 lbs0 lbs3,477 lbs
20Chloroethane75-00-33,424 lbs0 lbs3,424 lbs
21Propylene115-07-13,012 lbs0 lbs3,012 lbs
22Methyl acrylate96-33-32,867 lbs0 lbs2,867 lbs
23n-Butyl alcohol71-36-32,825 lbs0 lbs2,825 lbs
24Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs2,660 lbs2,660 lbs
25Styrene100-42-52,136 lbs0 lbs2,136 lbs
26Phenol108-95-21,875 lbs0 lbs1,875 lbs
27Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-01,840 lbs0 lbs1,840 lbs
28Hydroquinone123-31-91,723 lbs0 lbs1,723 lbs
29Chlorine7782-50-51,293 lbs0 lbs1,293 lbs
30tert-Butyl alcohol75-65-01,238 lbs0 lbs1,238 lbs
31Acrolein107-02-81,224 lbs0 lbs1,224 lbs
321,3-Butadiene106-99-01,172 lbs0 lbs1,172 lbs
33Nickel compoundsN4951,017 lbs108 lbs1,125 lbs
342-Methoxyethanol109-86-41,027 lbs0 lbs1,027 lbs
35Formaldehyde50-00-0966 lbs0 lbs966 lbs
36Methyl iodide74-88-4958 lbs0 lbs958 lbs
37Epichlorohydrin106-89-8643 lbs0 lbs643 lbs
38Xylene (mixed isomers)1330-20-7635 lbs0 lbs635 lbs
39Maleic anhydride108-31-6591 lbs0 lbs591 lbs
40Dibutyl phthalate84-74-2496 lbs0 lbs496 lbs
41Cobalt compoundsN096455 lbs36 lbs491 lbs
42Nickel And Nickel CompoundsN495423 lbs34 lbs457 lbs
432-Ethoxyethanol110-80-5407 lbs0 lbs407 lbs
44Dimethylamine124-40-3341 lbs0 lbs341 lbs
45Ethylbenzene100-41-4275 lbs0 lbs275 lbs
46Di(2-ethylhexyl) phthalate117-81-7222 lbs0 lbs222 lbs
47Cumene98-82-8210 lbs0 lbs210 lbs
48Cobalt And Cobalt CompoundsN096182 lbs8 lbs190 lbs
49Vanadium (except when contained in an alloy)7440-62-2170 lbs0 lbs170 lbs
50Allyl chloride107-05-1165 lbs0 lbs165 lbs
51Nonylphenol EthoxylatesN535131 lbs0 lbs131 lbs
521,2,4-Trimethylbenzene95-63-699 lbs0 lbs99 lbs
53Propylene oxide75-56-970 lbs0 lbs70 lbs
54Vanadium compoundsN77067 lbs0 lbs67 lbs
55Hydrazine302-01-239 lbs0 lbs39 lbs
56Benzoyl chloride98-88-433 lbs0 lbs33 lbs
57Cyclohexane110-82-724 lbs0 lbs24 lbs
58Lead And Lead CompoundsN42016 lbs1 lbs17 lbs
59Phthalic anhydride85-44-914 lbs0 lbs14 lbs
60Naphthalene91-20-312 lbs0 lbs12 lbs
61Manganese And Manganese CompoundsN4503 lbs0 lbs3 lbs
62Diphenylamine122-39-42 lbs0 lbs2 lbs
63NonylphenolN5301 lbs0 lbs1 lbs
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