Data-driven insights for local properties

Complete Property Analysis

Environmental risk, tax analysis, and property details for 902 Oak Leaf Ave, La Porte, TX 77571

HCAD #1000560000001
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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 AE
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
902 Oak Leaf Ave, La Porte, TX 77571
Building Size
3,102sqft
Total structure area from HCAD building records.
Elevation
7.58 ft
Height above sea level from USGS data.
FEMA Flood Zone
AE
High Risk - 1% annual chance with established base flood elevation
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)
17.42 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)
$186,585
Based on HCAD building value of $287,055.
Depth-Damage (Neighborhood)
$159,408
Based on neighborhood replacement cost.
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
Special Flood Hazard Area (SFHA): Flood insurance required for federally backed mortgages
#2
Obtain an Elevation Certificate to determine accurate flood insurance premiums
#3
Simulation shows 2.3ft of flooding - mitigation measures recommended
#4
Consider elevating utilities, HVAC systems, and electrical panels above anticipated flood levels
#5
Simulation depth of 2.3ft indicates potential damage to contents and finishes
#6
Review official FEMA Flood Insurance Rate Map (FIRM) for detailed flood zone boundaries
#7
Contact Harris County Flood Control District (HCFCD) for drainage projects and flood information
🏭Industrial Pollution Exposure
11.9th 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)
4.58 millionlbs
Extremely High
701.6x more than typical Houston property
≈ 229 dump trucks of chemicals within 2 miles
Air Pollution (10 Years)
4.58 millionlbs
Extremely High
949.0x more than typical Houston property
Includes fugitive emissions (leaks) and stack emissions (smokestacks).
Water Pollution (10 Years)
567lbs
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)4,577,171 lbs4,576,604 lbs567 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)398,006 lbs397,955 lbs51 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):
tert-Butyl alcohol, Propylene, Methanol, Ethylene, Propylene oxide
View the full list of 65 chemicals below.
Chemicals Released (2014-2024, 10-Year Total)(65 chemicals)
#ChemicalCAS#Air (lbs/10yr)Water (lbs/10yr)Total (lbs/10yr)
1tert-Butyl alcohol75-65-0751,778 lbs0 lbs751,778 lbs
2Propylene115-07-1571,678 lbs0 lbs571,678 lbs
3Methanol67-56-1504,096 lbs55 lbs504,151 lbs
4Ethylene74-85-1502,426 lbs0 lbs502,426 lbs
5Propylene oxide75-56-9310,051 lbs0 lbs310,051 lbs
6Toluene108-88-3294,665 lbs0 lbs294,665 lbs
7Ammonia7664-41-7265,454 lbs0 lbs265,454 lbs
8Acrylic acid79-10-7247,770 lbs0 lbs247,770 lbs
9n-Hexane110-54-3205,902 lbs0 lbs205,902 lbs
10Vinyl acetate108-05-4120,415 lbs0 lbs120,415 lbs
11Benzene71-43-2115,467 lbs0 lbs115,467 lbs
12Titanium tetrachloride7550-45-0108,195 lbs0 lbs108,195 lbs
13Cyclohexane110-82-7102,641 lbs0 lbs102,641 lbs
141,3-Butadiene106-99-091,536 lbs0 lbs91,536 lbs
15Ethylbenzene100-41-466,674 lbs0 lbs66,674 lbs
16Styrene100-42-552,990 lbs0 lbs52,990 lbs
17Isoprene78-79-547,793 lbs0 lbs47,793 lbs
18Ethylene glycol107-21-137,490 lbs0 lbs37,490 lbs
19Certain glycol ethersN23034,372 lbs0 lbs34,372 lbs
20Molybdenum trioxide1313-27-526,754 lbs0 lbs26,754 lbs
21Xylene (mixed isomers)1330-20-720,495 lbs0 lbs20,495 lbs
22Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-017,903 lbs0 lbs17,903 lbs
23Epichlorohydrin106-89-88,484 lbs0 lbs8,484 lbs
24Formaldehyde50-00-07,717 lbs0 lbs7,717 lbs
25Trade SecretTRD SECRT5,905 lbs88 lbs5,993 lbs
26Dibutyl phthalate84-74-25,792 lbs0 lbs5,792 lbs
27Dimethylamine124-40-35,764 lbs0 lbs5,764 lbs
28Maleic anhydride108-31-65,267 lbs0 lbs5,267 lbs
29Formic acid64-18-64,772 lbs0 lbs4,772 lbs
301,2,4-Trimethylbenzene95-63-64,474 lbs0 lbs4,474 lbs
31Butyl acrylate141-32-24,451 lbs0 lbs4,451 lbs
32Propyleneimine75-55-83,701 lbs0 lbs3,701 lbs
33Acetaldehyde75-07-03,091 lbs0 lbs3,091 lbs
341,4-Dioxane123-91-12,644 lbs0 lbs2,644 lbs
351,2-Butylene oxide106-88-72,348 lbs0 lbs2,348 lbs
36Chlorine7782-50-52,246 lbs0 lbs2,246 lbs
37Acrylonitrile107-13-11,977 lbs0 lbs1,977 lbs
38NonylphenolN5301,974 lbs0 lbs1,974 lbs
39Allyl alcohol107-18-61,820 lbs0 lbs1,820 lbs
40Naphthalene91-20-31,572 lbs0 lbs1,572 lbs
41Nitric acid7697-37-21,405 lbs0 lbs1,405 lbs
42Dicyclopentadiene77-73-61,387 lbs0 lbs1,387 lbs
43Nonylphenol EthoxylatesN535773 lbs0 lbs773 lbs
44Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-9597 lbs0 lbs597 lbs
45Acrolein107-02-8402 lbs0 lbs402 lbs
46Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs370 lbs370 lbs
47Hydroquinone123-31-9355 lbs0 lbs355 lbs
48Benzyl chloride100-44-7228 lbs0 lbs228 lbs
49Di(2-ethylhexyl) phthalate117-81-7222 lbs0 lbs222 lbs
50Ethylene oxide75-21-8169 lbs0 lbs169 lbs
51n-Butyl alcohol71-36-3114 lbs0 lbs114 lbs
52Diethanolamine111-42-2106 lbs0 lbs106 lbs
53Diethyl sulfate64-67-585 lbs0 lbs85 lbs
54Zinc compoundsN98248 lbs33 lbs81 lbs
55Phthalic anhydride85-44-940 lbs0 lbs40 lbs
56Antimony compoundsN01020 lbs15 lbs35 lbs
57Acetonitrile75-05-833 lbs0 lbs33 lbs
58Bis(2-chloroethyl) ether111-44-426 lbs0 lbs26 lbs
592,4-Dimethylphenol105-67-917 lbs0 lbs17 lbs
60Triethylamine121-44-810 lbs0 lbs15 lbs
61Cumene98-82-815 lbs0 lbs15 lbs
62Antimony And Antimony CompoundsN0105 lbs5 lbs10 lbs
631,3-Phenylenediamine108-45-22 lbs0 lbs2 lbs
64Lead7439-92-12 lbs0 lbs2 lbs
65Nickel compoundsN4950 lbs1 lbs1 lbs
📋
Top chemicals released near this property (2024 only):
tert-Butyl alcohol, Ethylene, Propylene, Toluene, Methanol
View the full list of 48 chemicals reported within 2 miles for 2024.
Chemicals Released (2024 Only)(48 chemicals)
#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1tert-Butyl alcohol75-65-0101,697 lbs0 lbs101,697 lbs
2Ethylene74-85-140,324 lbs0 lbs40,324 lbs
3Propylene115-07-140,147 lbs0 lbs40,147 lbs
4Toluene108-88-326,089 lbs0 lbs26,089 lbs
5Methanol67-56-124,179 lbs5 lbs24,184 lbs
6Ammonia7664-41-723,068 lbs0 lbs23,068 lbs
7Propylene oxide75-56-923,061 lbs0 lbs23,061 lbs
8Acrylic acid79-10-720,841 lbs0 lbs20,841 lbs
9n-Hexane110-54-319,447 lbs0 lbs19,447 lbs
10Isoprene78-79-512,309 lbs0 lbs12,309 lbs
11Vinyl acetate108-05-411,698 lbs0 lbs11,698 lbs
12Titanium tetrachloride7550-45-010,755 lbs0 lbs10,755 lbs
13Benzene71-43-28,393 lbs0 lbs8,393 lbs
14Cyclohexane110-82-78,101 lbs0 lbs8,101 lbs
15Ethylbenzene100-41-44,042 lbs0 lbs4,042 lbs
16Styrene100-42-53,754 lbs0 lbs3,754 lbs
171,3-Butadiene106-99-03,642 lbs0 lbs3,642 lbs
18Ethylene glycol107-21-13,255 lbs0 lbs3,255 lbs
19Molybdenum trioxide1313-27-53,114 lbs0 lbs3,114 lbs
20Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-01,959 lbs0 lbs1,959 lbs
21Maleic anhydride108-31-61,173 lbs0 lbs1,173 lbs
22Acrylonitrile107-13-1879 lbs0 lbs879 lbs
23Butyl acrylate141-32-2848 lbs0 lbs848 lbs
24Xylene (mixed isomers)1330-20-7674 lbs0 lbs674 lbs
25Epichlorohydrin106-89-8643 lbs0 lbs643 lbs
261,2,4-Trimethylbenzene95-63-6599 lbs0 lbs599 lbs
27NonylphenolN530551 lbs0 lbs551 lbs
28Dibutyl phthalate84-74-2496 lbs0 lbs496 lbs
29Certain glycol ethersN230421 lbs0 lbs421 lbs
30Formaldehyde50-00-0296 lbs0 lbs296 lbs
31Naphthalene91-20-3223 lbs0 lbs223 lbs
32Di(2-ethylhexyl) phthalate117-81-7222 lbs0 lbs222 lbs
33Nitric acid7697-37-2217 lbs0 lbs217 lbs
34Formic acid64-18-6175 lbs0 lbs175 lbs
351,4-Dioxane123-91-1126 lbs0 lbs126 lbs
36Benzyl chloride100-44-7119 lbs0 lbs119 lbs
37Dicyclopentadiene77-73-697 lbs0 lbs97 lbs
38Allyl alcohol107-18-696 lbs0 lbs96 lbs
391,2-Butylene oxide106-88-752 lbs0 lbs52 lbs
40Trade SecretTRD SECRT0 lbs46 lbs46 lbs
41Ethylene oxide75-21-842 lbs0 lbs42 lbs
42Propyleneimine75-55-832 lbs0 lbs32 lbs
43Acrolein107-02-828 lbs0 lbs28 lbs
44Acetonitrile75-05-824 lbs0 lbs24 lbs
45Hydroquinone123-31-923 lbs0 lbs23 lbs
46Phthalic anhydride85-44-914 lbs0 lbs14 lbs
47n-Butyl alcohol71-36-310 lbs0 lbs10 lbs
48Acetaldehyde75-07-02 lbs0 lbs2 lbs
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