Data-driven insights for local properties

Complete Property Analysis

Environmental risk, tax analysis, and property details for 10002 Shell Rock Rd, La Porte, TX 77571

HCAD #1131280000001
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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
10002 Shell Rock Rd, La Porte, TX 77571
Building Size
2,360sqft
Total structure area from HCAD building records.
Elevation
20.1 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)
29.94 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)
$116,977
Based on HCAD building value of $179,965.
Depth-Damage (Neighborhood)
$116,768
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
12.6th 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)
3.92 millionlbs
Extremely High
600.8x more than typical Houston property
≈ 196 dump trucks of chemicals within 2 miles
Air Pollution (10 Years)
3.9 millionlbs
Extremely High
809.4x 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
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)3,919,776 lbs3,903,440 lbs16,336 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)340,416 lbs339,141 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, Ethylene, Toluene, Ammonia, Nitric acid
View the full list of 57 chemicals below.
Chemicals Released (2014-2024, 10-Year Total)(57 chemicals)
#ChemicalCAS#Air (lbs/10yr)Water (lbs/10yr)Total (lbs/10yr)
1n-Hexane110-54-31,020,298 lbs0 lbs1,020,298 lbs
2Ethylene74-85-1723,170 lbs0 lbs723,170 lbs
3Toluene108-88-3434,759 lbs0 lbs434,759 lbs
4Ammonia7664-41-7413,789 lbs123 lbs413,932 lbs
5Nitric acid7697-37-2397,668 lbs55 lbs397,748 lbs
6Methanol67-56-1112,552 lbs0 lbs119,079 lbs
7Ethylene glycol107-21-1104,863 lbs0 lbs104,863 lbs
8Ethylene oxide75-21-898,927 lbs0 lbs98,927 lbs
9Acrylonitrile107-13-183,639 lbs0 lbs83,639 lbs
10n-Butyl alcohol71-36-367,098 lbs0 lbs67,098 lbs
11Certain glycol ethersN23046,549 lbs0 lbs46,550 lbs
12Hydroquinone123-31-942,495 lbs0 lbs42,495 lbs
13Molybdenum trioxide1313-27-537,655 lbs3,227 lbs40,897 lbs
14Propylene115-07-136,801 lbs0 lbs36,801 lbs
15Methyl isobutyl ketone108-10-136,313 lbs0 lbs36,313 lbs
16Hydrogen sulfide7783-06-431,678 lbs0 lbs31,678 lbs
17Cumene98-82-831,173 lbs0 lbs31,173 lbs
18Phenol108-95-230,497 lbs0 lbs30,497 lbs
19Acetaldehyde75-07-025,328 lbs0 lbs25,328 lbs
20Xylene (mixed isomers)1330-20-717,096 lbs0 lbs17,096 lbs
21Nickel compoundsN49511,795 lbs1,904 lbs13,714 lbs
22Styrene100-42-512,385 lbs0 lbs12,385 lbs
232-Methoxyethanol109-86-411,669 lbs0 lbs11,669 lbs
24Benzene71-43-210,536 lbs0 lbs10,536 lbs
25Nitrate compounds (water dissociable; reportable only when in aqueous solution)N51130 lbs9,885 lbs9,930 lbs
26Chloroethane75-00-39,070 lbs0 lbs9,070 lbs
27Cobalt compoundsN0965,871 lbs886 lbs6,772 lbs
282-Ethoxyethanol110-80-56,044 lbs0 lbs6,044 lbs
29Diphenylamine122-39-45,938 lbs0 lbs5,938 lbs
30tert-Butyl alcohol75-65-05,606 lbs0 lbs5,606 lbs
31Ethylbenzene100-41-45,307 lbs0 lbs5,307 lbs
32Nickel And Nickel CompoundsN4954,878 lbs62 lbs4,940 lbs
33Cobalt And Cobalt CompoundsN0964,551 lbs42 lbs4,593 lbs
34Dimethylamine124-40-33,754 lbs0 lbs3,754 lbs
35Formaldehyde50-00-02,738 lbs102 lbs2,840 lbs
36Propylene oxide75-56-91,981 lbs0 lbs1,981 lbs
37Maleic anhydride108-31-61,577 lbs0 lbs1,577 lbs
38Allyl alcohol107-18-61,569 lbs0 lbs1,569 lbs
391,2,4-Trimethylbenzene95-63-61,065 lbs0 lbs1,065 lbs
40NonylphenolN5301,013 lbs0 lbs1,013 lbs
41Nonylphenol EthoxylatesN5351,008 lbs0 lbs1,008 lbs
42Cyclohexane110-82-7857 lbs0 lbs857 lbs
43Benzoyl chloride98-88-4469 lbs0 lbs469 lbs
44Hydrazine302-01-2437 lbs0 lbs437 lbs
45Lead And Lead CompoundsN420211 lbs10 lbs221 lbs
46Barium compounds (except for barium sulfate (CAS No. 7727-43-7))N040145 lbs30 lbs175 lbs
47Bifenthrin82657-04-3149 lbs0 lbs149 lbs
48Lead compoundsN420138 lbs4 lbs142 lbs
49Copper compoundsN100132 lbs6 lbs138 lbs
50Naphthalene91-20-396 lbs0 lbs96 lbs
51Cyanide compoundsN1065 lbs0 lbs58 lbs
52Chloromethane74-87-351 lbs0 lbs51 lbs
53Oxyfluorfen42874-03-310 lbs0 lbs10 lbs
54Bis(2-chloroethyl) ether111-44-43 lbs0 lbs3 lbs
55Cumene hydroperoxide80-15-92 lbs0 lbs2 lbs
56Methyl methacrylate80-62-62 lbs0 lbs2 lbs
57Boron trifluoride7637-07-21 lbs0 lbs1 lbs
📋
Top chemicals released near this property (2024 only):
n-Hexane, Ethylene, Ammonia, Toluene, Propylene
View the full list of 44 chemicals reported within 2 miles for 2024.
Chemicals Released (2024 Only)(44 chemicals)
#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1n-Hexane110-54-3117,147 lbs0 lbs117,147 lbs
2Ethylene74-85-190,297 lbs0 lbs90,297 lbs
3Ammonia7664-41-745,360 lbs5 lbs45,365 lbs
4Toluene108-88-314,342 lbs0 lbs14,342 lbs
5Propylene115-07-110,035 lbs0 lbs10,035 lbs
6Nitric acid7697-37-29,490 lbs5 lbs9,495 lbs
7Ethylene oxide75-21-87,605 lbs0 lbs7,605 lbs
8Methanol67-56-15,330 lbs0 lbs5,330 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
12Certain glycol ethersN2303,460 lbs0 lbs3,460 lbs
13Chloroethane75-00-33,424 lbs0 lbs3,424 lbs
14Ethylene glycol107-21-13,267 lbs0 lbs3,267 lbs
15Molybdenum trioxide1313-27-52,770 lbs482 lbs3,252 lbs
16Cumene98-82-82,616 lbs0 lbs2,616 lbs
17n-Butyl alcohol71-36-32,203 lbs0 lbs2,203 lbs
18Phenol108-95-21,875 lbs0 lbs1,875 lbs
19Nickel compoundsN4951,017 lbs108 lbs1,125 lbs
20Benzene71-43-21,090 lbs0 lbs1,090 lbs
212-Methoxyethanol109-86-41,027 lbs0 lbs1,027 lbs
22Xylene (mixed isomers)1330-20-7635 lbs0 lbs635 lbs
23Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs622 lbs622 lbs
24Cobalt compoundsN096455 lbs36 lbs491 lbs
25tert-Butyl alcohol75-65-0467 lbs0 lbs467 lbs
262-Ethoxyethanol110-80-5407 lbs0 lbs407 lbs
27Acetaldehyde75-07-0375 lbs0 lbs375 lbs
28Styrene100-42-5374 lbs0 lbs374 lbs
29Dimethylamine124-40-3341 lbs0 lbs341 lbs
30Ethylbenzene100-41-4275 lbs0 lbs275 lbs
31Maleic anhydride108-31-6186 lbs0 lbs186 lbs
32Formaldehyde50-00-0154 lbs0 lbs154 lbs
33Nonylphenol EthoxylatesN535131 lbs0 lbs131 lbs
34Diphenylamine122-39-4105 lbs0 lbs105 lbs
351,2,4-Trimethylbenzene95-63-699 lbs0 lbs99 lbs
36Nickel And Nickel CompoundsN49582 lbs8 lbs90 lbs
37Cobalt And Cobalt CompoundsN09682 lbs8 lbs90 lbs
38Propylene oxide75-56-939 lbs0 lbs39 lbs
39Hydrazine302-01-239 lbs0 lbs39 lbs
40Benzoyl chloride98-88-433 lbs0 lbs33 lbs
41Cyclohexane110-82-724 lbs0 lbs24 lbs
42Lead And Lead CompoundsN42016 lbs1 lbs17 lbs
43Naphthalene91-20-312 lbs0 lbs12 lbs
44NonylphenolN5301 lbs0 lbs1 lbs
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