Data-driven insights for local properties

Complete Property Analysis

Environmental risk, tax analysis, and property details for 193 N L St, La Porte, TX 77571

HCAD #1383020010001
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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
193 N L St, La Porte, TX 77571
Elevation
18.89 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)
28.73 ft
Water surface elevation relative to sea level (NAVD88 datum).
Area Inundated
241.1 acres
81.7% 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
12.1th 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)
4.34 millionlbs
Extremely High
664.6x more than typical Houston property
≈ 217 dump trucks of chemicals within 2 miles
Air Pollution (10 Years)
3.39 millionlbs
Extremely High
703.8x more than typical Houston property
Includes fugitive emissions (leaks) and stack emissions (smokestacks).
Water Pollution (10 Years)
942 thousandlbs
Extremely High
Discharges to bayous, streams, and drainage systems.
Facilities Nearby
16
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)4,335,870 lbs3,393,956 lbs941,914 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)699,324 lbs232,146 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 44 chemicals below.
Chemicals Released (2014-2024, 10-Year Total)(44 chemicals)
#ChemicalCAS#Air (lbs/10yr)Water (lbs/10yr)Total (lbs/10yr)
1Methanol67-56-11,489,924 lbs256 lbs9,155,105 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
4Ethylene74-85-1790,700 lbs0 lbs790,700 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
8Formaldehyde50-00-063,808 lbs0 lbs63,808 lbs
9n-Butyl alcohol71-36-349,206 lbs0 lbs49,206 lbs
10Toluene108-88-346,261 lbs0 lbs46,261 lbs
11Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-033,058 lbs0 lbs33,058 lbs
12Copper compoundsN1001 lbs84 lbs29,084 lbs
13Sodium nitrite7632-00-00 lbs26,012 lbs26,012 lbs
14Xylene (mixed isomers)1330-20-711,137 lbs0 lbs25,482 lbs
15Hydrogen fluoride7664-39-319,001 lbs0 lbs19,001 lbs
16n-Hexane110-54-316,824 lbs0 lbs16,824 lbs
17Propylene115-07-113,154 lbs0 lbs13,154 lbs
18Chlorine7782-50-511,961 lbs0 lbs11,961 lbs
19Acetonitrile75-05-87,091 lbs0 lbs7,091 lbs
20Dimethylamine124-40-37,035 lbs0 lbs7,035 lbs
21Dichloromethane75-09-25,688 lbs0 lbs5,688 lbs
22Methyl methacrylate80-62-65,482 lbs0 lbs5,482 lbs
23Chloroacetic acid79-11-84,175 lbs0 lbs4,175 lbs
24Ammonia7664-41-70 lbs3,199 lbs3,199 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
28Phosgene75-44-51,958 lbs0 lbs1,958 lbs
29Aluminum oxide (fibrous forms)1344-28-11,750 lbs0 lbs1,750 lbs
30Methyl tert-butyl ether1634-04-41,591 lbs0 lbs1,591 lbs
31Triethylamine121-44-81,515 lbs0 lbs1,515 lbs
32Ethyl chloroformate541-41-31,467 lbs0 lbs1,467 lbs
33Methyl chlorocarbonate79-22-11,449 lbs0 lbs1,449 lbs
34sec-Butyl alcohol78-92-21,434 lbs0 lbs1,434 lbs
35Acrolein107-02-8810 lbs0 lbs810 lbs
36Manganese7439-96-5511 lbs282 lbs793 lbs
37N,N-Dimethylformamide68-12-2535 lbs0 lbs535 lbs
38Hexazinone51235-04-20 lbs212 lbs212 lbs
39Nickel7440-02-00 lbs152 lbs152 lbs
40Chromium7440-47-345 lbs25 lbs70 lbs
41Nickel compoundsN4954 lbs3 lbs8 lbs
42Copper And Copper CompoundsN1000 lbs6 lbs6 lbs
43Nickel And Nickel CompoundsN4952 lbs1 lbs3 lbs
44Methyl 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 20 chemicals reported within 2 miles for 2024.
Chemicals Released (2024 Only)(20 chemicals)
#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Methanol67-56-149,340 lbs0 lbs426,051 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
7Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-06,255 lbs0 lbs6,255 lbs
8Formaldehyde50-00-03,559 lbs0 lbs3,559 lbs
9Hydrogen fluoride7664-39-31,738 lbs0 lbs1,738 lbs
10Chlorine7782-50-51,121 lbs0 lbs1,121 lbs
11Propylene115-07-1500 lbs0 lbs500 lbs
12Chloroacetic acid79-11-8476 lbs0 lbs476 lbs
13Aluminum oxide (fibrous forms)1344-28-1250 lbs0 lbs250 lbs
14Acrolein107-02-8209 lbs0 lbs209 lbs
15Methyl methacrylate80-62-6142 lbs0 lbs142 lbs
16Ethyl chloroformate541-41-3120 lbs0 lbs120 lbs
17sec-Butyl alcohol78-92-293 lbs0 lbs93 lbs
18n-Butyl alcohol71-36-375 lbs0 lbs75 lbs
19Phosgene75-44-527 lbs0 lbs27 lbs
20Methyl chlorocarbonate79-22-113 lbs0 lbs13 lbs
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