Data-driven insights for local properties

Complete Property Analysis

Environmental risk, tax analysis, and property details for 5180 Underwood Rd, Pasadena, TX 77507

HCAD #0410030000838
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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
5180 Underwood Rd, Pasadena, TX 77507
Elevation
19.49 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)
29.33 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
12.0th 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)
4.45 millionlbs
Extremely High
682.7x more than typical Houston property
≈ 223 dump trucks of chemicals within 2 miles
Air Pollution (10 Years)
4.44 millionlbs
Extremely High
920.2x 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
20
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)4,453,872 lbs4,437,536 lbs16,336 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)303,990 lbs302,715 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 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, Ammonia, Methanol, Vinyl acetate, Nitric acid
View the full list of 69 chemicals below.
Chemicals Released (2014-2024, 10-Year Total)(69 chemicals)
#ChemicalCAS#Air (lbs/10yr)Water (lbs/10yr)Total (lbs/10yr)
1Ethylene74-85-1719,750 lbs0 lbs719,750 lbs
2Ammonia7664-41-7650,931 lbs123 lbs651,074 lbs
3Methanol67-56-1604,581 lbs0 lbs611,108 lbs
4Vinyl acetate108-05-4516,353 lbs0 lbs516,353 lbs
5Nitric acid7697-37-2397,654 lbs55 lbs397,734 lbs
6n-Hexane110-54-3202,204 lbs0 lbs202,204 lbs
7Ethylene oxide75-21-8156,220 lbs0 lbs156,220 lbs
8Ethylene glycol107-21-1142,384 lbs0 lbs142,384 lbs
9Butyl acrylate141-32-2112,617 lbs0 lbs112,617 lbs
10Acetaldehyde75-07-0107,268 lbs0 lbs107,268 lbs
11Acrylic acid79-10-799,607 lbs0 lbs99,607 lbs
12N,N-Dimethylformamide68-12-286,451 lbs0 lbs86,451 lbs
13Styrene100-42-569,830 lbs0 lbs69,830 lbs
14Propylene115-07-161,094 lbs0 lbs61,094 lbs
151,3-Butadiene106-99-059,009 lbs0 lbs59,009 lbs
16Methyl methacrylate80-62-657,262 lbs0 lbs57,262 lbs
17Certain glycol ethersN23049,151 lbs0 lbs49,152 lbs
18n-Butyl alcohol71-36-344,473 lbs0 lbs44,473 lbs
19Molybdenum trioxide1313-27-537,655 lbs3,227 lbs40,897 lbs
20Chlorodifluoromethane (HCFC-22)75-45-638,792 lbs0 lbs38,792 lbs
21Ethyl acrylate140-88-537,097 lbs0 lbs37,097 lbs
22Hydrogen sulfide7783-06-431,678 lbs0 lbs31,678 lbs
23Methyl acrylate96-33-323,024 lbs0 lbs23,024 lbs
24tert-Butyl alcohol75-65-020,711 lbs0 lbs20,711 lbs
25Chlorine7782-50-515,132 lbs0 lbs15,132 lbs
26Nickel compoundsN49511,795 lbs1,904 lbs13,714 lbs
272-Methoxyethanol109-86-411,669 lbs0 lbs11,669 lbs
28Nitrate compounds (water dissociable; reportable only when in aqueous solution)N51130 lbs9,885 lbs9,930 lbs
29Toluene108-88-39,589 lbs0 lbs9,589 lbs
30Chloroethane75-00-39,070 lbs0 lbs9,070 lbs
31Cobalt compoundsN0965,871 lbs886 lbs6,772 lbs
322-Ethoxyethanol110-80-56,044 lbs0 lbs6,044 lbs
33Methyl iodide74-88-45,089 lbs0 lbs5,089 lbs
34Cumene98-82-85,060 lbs0 lbs5,060 lbs
35Nickel And Nickel CompoundsN4954,878 lbs62 lbs4,940 lbs
36Cobalt And Cobalt CompoundsN0964,551 lbs42 lbs4,593 lbs
37Propylene oxide75-56-92,606 lbs0 lbs2,606 lbs
38Xylene (mixed isomers)1330-20-72,454 lbs0 lbs2,454 lbs
39Acrolein107-02-82,268 lbs0 lbs2,268 lbs
40Hydroquinone123-31-92,263 lbs0 lbs2,263 lbs
41Formaldehyde50-00-01,950 lbs102 lbs2,052 lbs
42Dimethylamine124-40-31,745 lbs0 lbs1,745 lbs
43Allyl alcohol107-18-61,569 lbs0 lbs1,569 lbs
44Allyl chloride107-05-11,277 lbs0 lbs1,277 lbs
45NonylphenolN5301,013 lbs0 lbs1,013 lbs
46Nonylphenol EthoxylatesN5351,008 lbs0 lbs1,008 lbs
471,2,4-Trimethylbenzene95-63-6995 lbs0 lbs995 lbs
48Cyclohexane110-82-7857 lbs0 lbs857 lbs
49Acrylonitrile107-13-1775 lbs0 lbs775 lbs
50Maleic anhydride108-31-6612 lbs0 lbs612 lbs
51Benzoyl chloride98-88-4469 lbs0 lbs469 lbs
52Lead And Lead CompoundsN420211 lbs10 lbs221 lbs
53Barium compounds (except for barium sulfate (CAS No. 7727-43-7))N040145 lbs30 lbs175 lbs
54Bifenthrin82657-04-3149 lbs0 lbs149 lbs
55Lead compoundsN420138 lbs4 lbs142 lbs
56Copper compoundsN100132 lbs6 lbs138 lbs
57Ethylbenzene100-41-494 lbs0 lbs94 lbs
58Diphenylamine122-39-487 lbs0 lbs87 lbs
59Cyanide compoundsN1065 lbs0 lbs58 lbs
60Chloromethane74-87-351 lbs0 lbs51 lbs
61Naphthalene91-20-333 lbs0 lbs33 lbs
62Cumene hydroperoxide80-15-926 lbs0 lbs26 lbs
63Oxyfluorfen42874-03-310 lbs0 lbs10 lbs
644,4'-Diaminodiphenyl ether101-80-46 lbs0 lbs6 lbs
65Zinc compoundsN9825 lbs0 lbs5 lbs
66Bis(2-chloroethyl) ether111-44-43 lbs0 lbs3 lbs
67Manganese And Manganese CompoundsN4503 lbs0 lbs3 lbs
68Nickel7440-02-02 lbs0 lbs2 lbs
69Formic acid64-18-61 lbs0 lbs1 lbs
📋
Top chemicals released near this property (2024 only):
Ammonia, Ethylene, Methanol, Vinyl acetate, Ethylene glycol
View the full list of 51 chemicals reported within 2 miles for 2024.
Chemicals Released (2024 Only)(51 chemicals)
#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Ammonia7664-41-778,519 lbs5 lbs78,524 lbs
2Ethylene74-85-157,665 lbs0 lbs57,665 lbs
3Methanol67-56-131,109 lbs0 lbs31,109 lbs
4Vinyl acetate108-05-419,007 lbs0 lbs19,007 lbs
5Ethylene glycol107-21-114,421 lbs0 lbs14,421 lbs
6Acrylic acid79-10-711,701 lbs0 lbs11,701 lbs
7Ethylene oxide75-21-811,137 lbs0 lbs11,137 lbs
8Nitric acid7697-37-29,488 lbs5 lbs9,493 lbs
9N,N-Dimethylformamide68-12-27,763 lbs0 lbs7,763 lbs
10n-Hexane110-54-37,512 lbs0 lbs7,512 lbs
11Butyl acrylate141-32-26,270 lbs0 lbs6,270 lbs
12Methyl methacrylate80-62-66,109 lbs0 lbs6,109 lbs
13Acetaldehyde75-07-04,422 lbs0 lbs4,422 lbs
14Hydrogen sulfide7783-06-43,596 lbs0 lbs3,596 lbs
15Certain glycol ethersN2303,532 lbs0 lbs3,532 lbs
16Ethyl acrylate140-88-53,477 lbs0 lbs3,477 lbs
17Chloroethane75-00-33,424 lbs0 lbs3,424 lbs
18Molybdenum trioxide1313-27-52,770 lbs482 lbs3,252 lbs
19Methyl acrylate96-33-32,867 lbs0 lbs2,867 lbs
20Propylene115-07-12,064 lbs0 lbs2,064 lbs
21n-Butyl alcohol71-36-31,893 lbs0 lbs1,893 lbs
22Hydroquinone123-31-91,723 lbs0 lbs1,723 lbs
23Chlorine7782-50-51,293 lbs0 lbs1,293 lbs
24Styrene100-42-51,292 lbs0 lbs1,292 lbs
25tert-Butyl alcohol75-65-01,238 lbs0 lbs1,238 lbs
26Acrolein107-02-81,224 lbs0 lbs1,224 lbs
271,3-Butadiene106-99-01,172 lbs0 lbs1,172 lbs
28Nickel compoundsN4951,017 lbs108 lbs1,125 lbs
292-Methoxyethanol109-86-41,027 lbs0 lbs1,027 lbs
30Methyl iodide74-88-4958 lbs0 lbs958 lbs
31Formaldehyde50-00-0815 lbs0 lbs815 lbs
32Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs622 lbs622 lbs
33Cobalt compoundsN096455 lbs36 lbs491 lbs
342-Ethoxyethanol110-80-5407 lbs0 lbs407 lbs
35Toluene108-88-3295 lbs0 lbs295 lbs
36Cumene98-82-8210 lbs0 lbs210 lbs
37Allyl chloride107-05-1165 lbs0 lbs165 lbs
38Nonylphenol EthoxylatesN535131 lbs0 lbs131 lbs
39Dimethylamine124-40-3113 lbs0 lbs113 lbs
40Nickel And Nickel CompoundsN49582 lbs8 lbs90 lbs
41Cobalt And Cobalt CompoundsN09682 lbs8 lbs90 lbs
421,2,4-Trimethylbenzene95-63-674 lbs0 lbs74 lbs
43Propylene oxide75-56-970 lbs0 lbs70 lbs
44Xylene (mixed isomers)1330-20-739 lbs0 lbs39 lbs
45Benzoyl chloride98-88-433 lbs0 lbs33 lbs
46Cyclohexane110-82-724 lbs0 lbs24 lbs
47Lead And Lead CompoundsN42016 lbs1 lbs17 lbs
48Maleic anhydride108-31-68 lbs0 lbs8 lbs
49Ethylbenzene100-41-44 lbs0 lbs4 lbs
50Manganese And Manganese CompoundsN4503 lbs0 lbs3 lbs
51NonylphenolN5301 lbs0 lbs1 lbs
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