Data-driven insights for local properties

Complete Property Analysis

Environmental risk, tax analysis, and property details for 403 Winkler Dr, Houston, TX 77087

HCAD #0410300000364
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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
403 Winkler Dr, Houston, TX 77087
Elevation
32.72 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)
42.56 ft
Water surface elevation relative to sea level (NAVD88 datum).
Area Inundated
241.3 acres
81.8% 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
17.2th percentile
Property Pollution Ranking
High
Higher pollution than 83% of Houston homes
Compares pollution within 2mi against 10,000 Houston properties. Lower percentiles = higher pollution.
Industrial Pollution Nearby (10 Years)
1.49 millionlbs
Extremely High
228.8x more than typical Houston property
≈ 75 dump trucks of chemicals within 2 miles
Air Pollution (10 Years)
1.45 millionlbs
Extremely High
300.5x more than typical Houston property
Includes fugitive emissions (leaks) and stack emissions (smokestacks).
Water Pollution (10 Years)
44 thousandlbs
Extremely High
Discharges to bayous, streams, and drainage systems.
Facilities Nearby
6
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)1,492,700 lbs1,449,189 lbs43,511 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)116,511 lbs101,946 lbs14,565 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 83% 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):
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Ammonia, Methyl tert-butyl ether, 1,3-Butadiene, Methanol
View the full list of 50 chemicals below.
Chemicals Released (2014-2024, 10-Year Total)(50 chemicals)
#ChemicalCAS#Air (lbs/10yr)Water (lbs/10yr)Total (lbs/10yr)
1Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-9376,938 lbs0 lbs376,938 lbs
2Ammonia7664-41-7331,114 lbs3,674 lbs334,788 lbs
3Methyl tert-butyl ether1634-04-4267,534 lbs0 lbs267,534 lbs
41,3-Butadiene106-99-0255,579 lbs0 lbs255,579 lbs
5Methanol67-56-156,340 lbs39,325 lbs95,666 lbs
6Xylene (mixed isomers)1330-20-755,047 lbs0 lbs55,047 lbs
7N-Methyl-2-pyrrolidone872-50-437,616 lbs0 lbs37,616 lbs
8N,N-Dimethylformamide68-12-222,161 lbs88 lbs22,249 lbs
9tert-Butyl alcohol75-65-015,278 lbs0 lbs15,278 lbs
10Propylene115-07-114,432 lbs0 lbs14,432 lbs
11Hydrogen sulfide7783-06-46,306 lbs0 lbs6,306 lbs
12Ethylene74-85-12,621 lbs0 lbs2,621 lbs
13Certain glycol ethersN2301,884 lbs0 lbs1,884 lbs
14Vinyl acetate108-05-41,608 lbs0 lbs1,608 lbs
15Acetaldehyde75-07-01,011 lbs0 lbs1,011 lbs
16Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-0999 lbs0 lbs999 lbs
17Manganese7439-96-5500 lbs251 lbs751 lbs
18Lead7439-92-1477 lbs161 lbs638 lbs
191,1,1,2-Tetrachloroethane630-20-6434 lbs0 lbs434 lbs
20Carbon disulfide75-15-0351 lbs0 lbs351 lbs
21Chromium compounds (except for chromite ore mined in the Transvaal Region)N090323 lbs0 lbs323 lbs
22Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N090165 lbs0 lbs165 lbs
23Dimethylamine124-40-390 lbs0 lbs90 lbs
24Lead And Lead CompoundsN42063 lbs10 lbs73 lbs
25Vanadium compoundsN77065 lbs0 lbs65 lbs
26Boron trifluoride7637-07-246 lbs0 lbs46 lbs
27Zinc compoundsN98238 lbs0 lbs38 lbs
28Allyl alcohol107-18-634 lbs0 lbs34 lbs
29Nitric acid7697-37-224 lbs0 lbs24 lbs
30Methoxone sodium salt3653-48-320 lbs0 lbs20 lbs
31Triethylamine121-44-817 lbs0 lbs17 lbs
32Acrolein107-02-813 lbs0 lbs13 lbs
33Hydrogen fluoride7664-39-312 lbs0 lbs12 lbs
34Hydroquinone123-31-99 lbs0 lbs9 lbs
35Nickel compoundsN4958 lbs0 lbs8 lbs
36Mercury compoundsN4583 lbs1 lbs4 lbs
37Cyanide compoundsN1064 lbs0 lbs4 lbs
38Diaminotoluene (mixed isomers)25376-45-84 lbs0 lbs4 lbs
39Pyridine110-86-13 lbs0 lbs3 lbs
40Benzene71-43-23 lbs0 lbs3 lbs
41Nickel And Nickel CompoundsN4952 lbs0 lbs2 lbs
42Copper compoundsN1002 lbs0 lbs2 lbs
43Chloroethane75-00-32 lbs0 lbs2 lbs
44p-Cresol106-44-52 lbs0 lbs2 lbs
45Ethylene glycol107-21-11 lbs0 lbs1 lbs
46Manganese And Manganese CompoundsN4501 lbs0 lbs1 lbs
472,4-Diaminotoluene95-80-71 lbs0 lbs1 lbs
48Trichloroethylene79-01-61 lbs0 lbs1 lbs
49Ethylbenzene100-41-41 lbs0 lbs1 lbs
50Cyclohexane110-82-71 lbs0 lbs1 lbs
📋
Top chemicals released near this property (2024 only):
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Methanol, Methyl tert-butyl ether, 1,3-Butadiene, N-Methyl-2-pyrrolidone
View the full list of 25 chemicals reported within 2 miles for 2024.
Chemicals Released (2024 Only)(25 chemicals)
#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-950,698 lbs0 lbs50,698 lbs
2Methanol67-56-17,001 lbs14,541 lbs21,542 lbs
3Methyl tert-butyl ether1634-04-418,336 lbs0 lbs18,336 lbs
41,3-Butadiene106-99-018,236 lbs0 lbs18,236 lbs
5N-Methyl-2-pyrrolidone872-50-42,081 lbs0 lbs2,081 lbs
6N,N-Dimethylformamide68-12-21,641 lbs0 lbs1,641 lbs
7Propylene115-07-11,091 lbs0 lbs1,091 lbs
8tert-Butyl alcohol75-65-01,021 lbs0 lbs1,021 lbs
9Hydrogen sulfide7783-06-4592 lbs0 lbs592 lbs
10Ethylene74-85-1364 lbs0 lbs364 lbs
11Carbon disulfide75-15-0241 lbs0 lbs241 lbs
12Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-0221 lbs0 lbs221 lbs
131,1,1,2-Tetrachloroethane630-20-6212 lbs0 lbs212 lbs
14Ammonia7664-41-7107 lbs0 lbs107 lbs
15Lead And Lead CompoundsN42031 lbs5 lbs36 lbs
16Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N09027 lbs0 lbs27 lbs
17Lead7439-92-15 lbs19 lbs25 lbs
18Dimethylamine124-40-323 lbs0 lbs23 lbs
19Vinyl acetate108-05-45 lbs0 lbs5 lbs
20Nitric acid7697-37-23 lbs0 lbs3 lbs
21Zinc compoundsN9823 lbs0 lbs3 lbs
22Boron trifluoride7637-07-21 lbs0 lbs1 lbs
23Acetaldehyde75-07-01 lbs0 lbs1 lbs
24Nickel compoundsN4951 lbs0 lbs1 lbs
25Cyanide compoundsN1061 lbs0 lbs1 lbs
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