Data-driven insights for local properties

Complete Property Analysis

Environmental risk, tax analysis, and property details for 0 Effie Ln, La Porte, TX 77571

HCAD #0231470000932
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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
0 Effie Ln, La Porte, TX 77571
Elevation
20.97 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)
30.82 ft
Water surface elevation relative to sea level (NAVD88 datum).
Area Inundated
291.8 acres
98.9% 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
11.7th 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)
4.86 millionlbs
Extremely High
745.5x more than typical Houston property
≈ 243 dump trucks of chemicals within 2 miles
Air Pollution (10 Years)
3.69 millionlbs
Extremely High
765.7x more than typical Houston property
Includes fugitive emissions (leaks) and stack emissions (smokestacks).
Water Pollution (10 Years)
1.17 millionlbs
Extremely High
Discharges to bayous, streams, and drainage systems.
Facilities Nearby
18
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)4,863,666 lbs3,692,284 lbs1,171,382 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)694,470 lbs227,292 lbs0 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):
Methanol, Vinyl acetate, Nitrate compounds (water dissociable; reportable only when in aqueous solution), Ethylene, Acetaldehyde
View the full list of 45 chemicals below.
Chemicals Released (2014-2024, 10-Year Total)(45 chemicals)
#ChemicalCAS#Air (lbs/10yr)Water (lbs/10yr)Total (lbs/10yr)
1Methanol67-56-11,733,548 lbs228,964 lbs9,627,437 lbs
2Vinyl acetate108-05-4391,623 lbs0 lbs3,091,165 lbs
3Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs911,682 lbs911,682 lbs
4Ethylene74-85-1792,020 lbs0 lbs792,020 lbs
5Acetaldehyde75-07-0193,009 lbs0 lbs528,044 lbs
6Hydroquinone123-31-90 lbs0 lbs430,145 lbs
7Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-9216,585 lbs0 lbs216,585 lbs
8Xylene (mixed isomers)1330-20-754,281 lbs0 lbs68,626 lbs
9Formaldehyde50-00-063,808 lbs0 lbs63,808 lbs
10n-Butyl alcohol71-36-348,101 lbs0 lbs48,101 lbs
11Toluene108-88-346,261 lbs0 lbs46,261 lbs
12Propylene115-07-140,698 lbs0 lbs40,698 lbs
13Copper compoundsN1001 lbs84 lbs29,084 lbs
14Sodium nitrite7632-00-00 lbs26,012 lbs26,012 lbs
15n-Hexane110-54-320,824 lbs0 lbs20,824 lbs
16Hydrogen fluoride7664-39-319,001 lbs0 lbs19,001 lbs
17Ethylene glycol107-21-116,751 lbs0 lbs16,751 lbs
18Chlorine7782-50-59,153 lbs605 lbs9,758 lbs
19Acetonitrile75-05-87,091 lbs0 lbs7,091 lbs
20Dimethylamine124-40-37,035 lbs0 lbs7,035 lbs
21Ammonia7664-41-73,140 lbs3,199 lbs6,339 lbs
22Dichloromethane75-09-25,688 lbs0 lbs5,688 lbs
23Maleic anhydride108-31-65,569 lbs0 lbs5,569 lbs
24Methyl methacrylate80-62-65,482 lbs0 lbs5,482 lbs
25Chlorobenzene108-90-73,127 lbs0 lbs3,127 lbs
26Mercury7439-97-60 lbs0 lbs2,200 lbs
27Methyl acrylate96-33-32,031 lbs0 lbs2,031 lbs
28Aluminum oxide (fibrous forms)1344-28-11,750 lbs0 lbs1,750 lbs
29Methyl tert-butyl ether1634-04-41,591 lbs0 lbs1,591 lbs
30Triethylamine121-44-81,515 lbs0 lbs1,515 lbs
31Acrolein107-02-8810 lbs0 lbs810 lbs
32Manganese7439-96-5511 lbs282 lbs793 lbs
33N,N-Dimethylformamide68-12-2501 lbs0 lbs501 lbs
34Naphthalene91-20-3245 lbs0 lbs245 lbs
351,3-Butadiene106-99-0217 lbs0 lbs217 lbs
36Ethylbenzene100-41-4216 lbs0 lbs216 lbs
37Hexazinone51235-04-20 lbs212 lbs212 lbs
38Zinc compoundsN9820 lbs155 lbs155 lbs
39Nickel7440-02-00 lbs152 lbs152 lbs
40Chromium7440-47-345 lbs25 lbs70 lbs
41sec-Butyl alcohol78-92-247 lbs0 lbs47 lbs
42Nickel compoundsN4954 lbs3 lbs8 lbs
43Copper And Copper CompoundsN1000 lbs6 lbs6 lbs
44Nickel And Nickel CompoundsN4952 lbs1 lbs3 lbs
45Methyl isocyanate624-83-91 lbs0 lbs1 lbs
📋
Top chemicals released near this property (2024 only):
Methanol, Acetaldehyde, Ethylene, Vinyl acetate, Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)
View the full list of 18 chemicals reported within 2 miles for 2024.
Chemicals Released (2024 Only)(18 chemicals)
#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Methanol67-56-149,331 lbs0 lbs426,042 lbs
2Acetaldehyde75-07-056,530 lbs0 lbs89,105 lbs
3Ethylene74-85-175,130 lbs0 lbs75,130 lbs
4Vinyl acetate108-05-47,022 lbs0 lbs36,095 lbs
5Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-929,545 lbs0 lbs29,545 lbs
6Hydroquinone123-31-90 lbs0 lbs28,819 lbs
7Formaldehyde50-00-03,559 lbs0 lbs3,559 lbs
8Hydrogen fluoride7664-39-31,738 lbs0 lbs1,738 lbs
9Maleic anhydride108-31-61,569 lbs0 lbs1,569 lbs
10Xylene (mixed isomers)1330-20-71,144 lbs0 lbs1,144 lbs
11Propylene115-07-1500 lbs0 lbs500 lbs
12Aluminum oxide (fibrous forms)1344-28-1250 lbs0 lbs250 lbs
13Naphthalene91-20-3245 lbs0 lbs245 lbs
14Ethylbenzene100-41-4216 lbs0 lbs216 lbs
15Acrolein107-02-8209 lbs0 lbs209 lbs
16Chlorine7782-50-5160 lbs0 lbs160 lbs
17Methyl methacrylate80-62-6142 lbs0 lbs142 lbs
18Ethylene glycol107-21-11 lbs0 lbs1 lbs
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