Data-driven insights for local properties

Complete Property Analysis

Environmental risk, tax analysis, and property details for 403 Weimer Lagoon Rd, La Porte, TX 77571

HCAD #1500050010002
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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 Weimer Lagoon Rd, La Porte, TX 77571
Building Size
2,377sqft
Total structure area from HCAD building records.
Elevation
20.05 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)
29.89 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)
$149,347
Based on HCAD building value of $229,766.
Depth-Damage (Neighborhood)
$140,305
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
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
12.9th percentile
Property Pollution Ranking
High
Higher pollution than 87% of Houston homes
Compares pollution within 2mi against 10,000 Houston properties. Lower percentiles = higher pollution.
Industrial Pollution Nearby (10 Years)
3.67 millionlbs
Extremely High
562.7x more than typical Houston property
≈ 184 dump trucks of chemicals within 2 miles
Air Pollution (10 Years)
3.65 millionlbs
Extremely High
757.9x 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
23
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)3,671,115 lbs3,654,779 lbs16,336 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)328,502 lbs327,227 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 87% 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):
n-Hexane, Ammonia, Toluene, Ethylene, Nitric acid
View the full list of 68 chemicals below.
Chemicals Released (2014-2024, 10-Year Total)(68 chemicals)
#ChemicalCAS#Air (lbs/10yr)Water (lbs/10yr)Total (lbs/10yr)
1n-Hexane110-54-31,028,988 lbs0 lbs1,028,988 lbs
2Ammonia7664-41-7501,457 lbs123 lbs501,600 lbs
3Toluene108-88-3430,896 lbs0 lbs430,896 lbs
4Ethylene74-85-1420,145 lbs0 lbs420,145 lbs
5Nitric acid7697-37-2397,467 lbs55 lbs397,547 lbs
6Methanol67-56-1254,302 lbs0 lbs254,302 lbs
7Acrylonitrile107-13-183,639 lbs0 lbs83,639 lbs
8n-Butyl alcohol71-36-355,641 lbs0 lbs55,641 lbs
9Hydroquinone123-31-942,495 lbs0 lbs42,495 lbs
10Molybdenum trioxide1313-27-537,655 lbs3,227 lbs40,897 lbs
11Propylene115-07-136,801 lbs0 lbs36,801 lbs
12Methyl isobutyl ketone108-10-136,313 lbs0 lbs36,313 lbs
13Xylene (mixed isomers)1330-20-733,103 lbs0 lbs33,103 lbs
14Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-033,058 lbs0 lbs33,058 lbs
15Hydrogen sulfide7783-06-431,678 lbs0 lbs31,678 lbs
16Cumene98-82-831,173 lbs0 lbs31,173 lbs
17Phenol108-95-230,497 lbs0 lbs30,497 lbs
18Vinyl acetate108-05-422,306 lbs0 lbs22,306 lbs
19Propylene oxide75-56-916,766 lbs0 lbs16,766 lbs
20Styrene100-42-513,938 lbs0 lbs13,938 lbs
21Nickel compoundsN49511,795 lbs1,905 lbs13,715 lbs
22Acetaldehyde75-07-012,256 lbs0 lbs12,256 lbs
23Benzene71-43-210,536 lbs0 lbs10,536 lbs
24Chlorine7782-50-510,430 lbs0 lbs10,430 lbs
25Nitrate compounds (water dissociable; reportable only when in aqueous solution)N51130 lbs9,885 lbs9,930 lbs
26tert-Butyl alcohol75-65-06,837 lbs0 lbs6,837 lbs
27Cobalt compoundsN0965,871 lbs886 lbs6,772 lbs
28Diphenylamine122-39-45,851 lbs0 lbs5,851 lbs
29Ethylbenzene100-41-45,307 lbs0 lbs5,307 lbs
30Nickel And Nickel CompoundsN4954,878 lbs62 lbs4,940 lbs
31Cobalt And Cobalt CompoundsN0964,551 lbs42 lbs4,593 lbs
32Chloroacetic acid79-11-84,175 lbs0 lbs4,175 lbs
33Acrylic acid79-10-73,532 lbs0 lbs3,532 lbs
34Allyl alcohol107-18-63,389 lbs0 lbs3,389 lbs
35Methyl methacrylate80-62-63,052 lbs0 lbs3,052 lbs
36Formaldehyde50-00-02,738 lbs102 lbs2,840 lbs
371,2-Butylene oxide106-88-72,348 lbs0 lbs2,348 lbs
38Ethylene oxide75-21-82,222 lbs0 lbs2,222 lbs
39Mercury7439-97-60 lbs0 lbs2,200 lbs
40Dimethylamine124-40-32,009 lbs0 lbs2,009 lbs
41Phosgene75-44-51,958 lbs0 lbs1,958 lbs
42Aluminum oxide (fibrous forms)1344-28-11,750 lbs0 lbs1,750 lbs
43Ethyl chloroformate541-41-31,467 lbs0 lbs1,467 lbs
44Methyl chlorocarbonate79-22-11,449 lbs0 lbs1,449 lbs
45sec-Butyl alcohol78-92-21,434 lbs0 lbs1,434 lbs
46Dicyclopentadiene77-73-61,178 lbs0 lbs1,178 lbs
471,2,4-Trimethylbenzene95-63-61,065 lbs0 lbs1,065 lbs
48Maleic anhydride108-31-6966 lbs0 lbs966 lbs
49Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-9597 lbs0 lbs597 lbs
50Manganese7439-96-5511 lbs0 lbs511 lbs
51Benzoyl chloride98-88-4469 lbs0 lbs469 lbs
52Hydrazine302-01-2437 lbs0 lbs437 lbs
53Cyclohexane110-82-7418 lbs0 lbs418 lbs
54Lead And Lead CompoundsN420211 lbs10 lbs221 lbs
55Barium compounds (except for barium sulfate (CAS No. 7727-43-7))N040145 lbs30 lbs175 lbs
56Lead compoundsN420138 lbs4 lbs142 lbs
57Copper compoundsN100132 lbs6 lbs138 lbs
58Naphthalene91-20-396 lbs0 lbs96 lbs
59Ethylene glycol107-21-177 lbs0 lbs77 lbs
60Chloromethane74-87-351 lbs0 lbs51 lbs
61Chromium7440-47-345 lbs0 lbs45 lbs
62N,N-Dimethylformamide68-12-234 lbs0 lbs34 lbs
63Phthalic anhydride85-44-913 lbs0 lbs13 lbs
64Butyl acrylate141-32-25 lbs0 lbs5 lbs
65Bis(2-chloroethyl) ether111-44-43 lbs0 lbs3 lbs
66Certain glycol ethersN2303 lbs0 lbs3 lbs
67Cumene hydroperoxide80-15-92 lbs0 lbs2 lbs
68Boron trifluoride7637-07-21 lbs0 lbs1 lbs
📋
Top chemicals released near this property (2024 only):
n-Hexane, Ethylene, Ammonia, Toluene, Methanol
View the full list of 52 chemicals reported within 2 miles for 2024.
Chemicals Released (2024 Only)(52 chemicals)
#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1n-Hexane110-54-3116,901 lbs0 lbs116,901 lbs
2Ethylene74-85-172,000 lbs0 lbs72,000 lbs
3Ammonia7664-41-753,155 lbs5 lbs53,160 lbs
4Toluene108-88-314,259 lbs0 lbs14,259 lbs
5Methanol67-56-112,137 lbs0 lbs12,137 lbs
6Propylene115-07-110,035 lbs0 lbs10,035 lbs
7Nitric acid7697-37-29,490 lbs5 lbs9,495 lbs
8Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-06,255 lbs0 lbs6,255 lbs
9Hydroquinone123-31-94,862 lbs0 lbs4,862 lbs
10Methyl isobutyl ketone108-10-13,997 lbs0 lbs3,997 lbs
11Hydrogen sulfide7783-06-43,596 lbs0 lbs3,596 lbs
12Molybdenum trioxide1313-27-52,770 lbs482 lbs3,252 lbs
13Cumene98-82-82,616 lbs0 lbs2,616 lbs
14Vinyl acetate108-05-42,418 lbs0 lbs2,418 lbs
15Phenol108-95-21,875 lbs0 lbs1,875 lbs
16Nickel compoundsN4951,017 lbs108 lbs1,125 lbs
17Benzene71-43-21,090 lbs0 lbs1,090 lbs
18n-Butyl alcohol71-36-31,017 lbs0 lbs1,017 lbs
19Chlorine7782-50-5961 lbs0 lbs961 lbs
20Xylene (mixed isomers)1330-20-7723 lbs0 lbs723 lbs
21Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs622 lbs622 lbs
22Styrene100-42-5530 lbs0 lbs530 lbs
23Acetaldehyde75-07-0494 lbs0 lbs494 lbs
24tert-Butyl alcohol75-65-0493 lbs0 lbs493 lbs
25Cobalt compoundsN096455 lbs36 lbs491 lbs
26Ethylene oxide75-21-8483 lbs0 lbs483 lbs
27Chloroacetic acid79-11-8476 lbs0 lbs476 lbs
28Propylene oxide75-56-9431 lbs0 lbs431 lbs
29Methyl methacrylate80-62-6387 lbs0 lbs387 lbs
30Ethylbenzene100-41-4275 lbs0 lbs275 lbs
31Aluminum oxide (fibrous forms)1344-28-1250 lbs0 lbs250 lbs
32Dimethylamine124-40-3228 lbs0 lbs228 lbs
33Acrylic acid79-10-7186 lbs0 lbs186 lbs
34Maleic anhydride108-31-6178 lbs0 lbs178 lbs
35Formaldehyde50-00-0154 lbs0 lbs154 lbs
36Ethyl chloroformate541-41-3120 lbs0 lbs120 lbs
37Diphenylamine122-39-4105 lbs0 lbs105 lbs
381,2,4-Trimethylbenzene95-63-699 lbs0 lbs99 lbs
39Dicyclopentadiene77-73-697 lbs0 lbs97 lbs
40Allyl alcohol107-18-696 lbs0 lbs96 lbs
41sec-Butyl alcohol78-92-293 lbs0 lbs93 lbs
42Nickel And Nickel CompoundsN49582 lbs8 lbs90 lbs
43Cobalt And Cobalt CompoundsN09682 lbs8 lbs90 lbs
44Cyclohexane110-82-765 lbs0 lbs65 lbs
451,2-Butylene oxide106-88-752 lbs0 lbs52 lbs
46Hydrazine302-01-239 lbs0 lbs39 lbs
47Benzoyl chloride98-88-433 lbs0 lbs33 lbs
48Phosgene75-44-527 lbs0 lbs27 lbs
49Lead And Lead CompoundsN42016 lbs1 lbs17 lbs
50Methyl chlorocarbonate79-22-113 lbs0 lbs13 lbs
51Naphthalene91-20-312 lbs0 lbs12 lbs
52Ethylene glycol107-21-13 lbs0 lbs3 lbs
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