Data-driven insights for local properties

Complete Property Analysis

Environmental risk, tax analysis, and property details for 10342 Shell Rock Rd, La Porte, TX 77571

HCAD #0951490000006
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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
10342 Shell Rock Rd, La Porte, TX 77571
Building Size
2,514sqft
Total structure area from HCAD building records.
Elevation
19.74 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)
29.58 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)
$114,988
Based on HCAD building value of $176,906.
Depth-Damage (Neighborhood)
$116,053
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
12.2th 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)
4.24 millionlbs
Extremely High
649.8x more than typical Houston property
≈ 212 dump trucks of chemicals within 2 miles
Air Pollution (10 Years)
4.22 millionlbs
Extremely High
875.8x 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
21
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)4,239,772 lbs4,223,436 lbs16,336 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)364,727 lbs363,452 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 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):
n-Hexane, Ethylene, Ammonia, Toluene, Nitric acid
View the full list of 61 chemicals below.
Chemicals Released (2014-2024, 10-Year Total)(61 chemicals)
#ChemicalCAS#Air (lbs/10yr)Water (lbs/10yr)Total (lbs/10yr)
1n-Hexane110-54-31,020,298 lbs0 lbs1,020,298 lbs
2Ethylene74-85-1746,027 lbs0 lbs746,027 lbs
3Ammonia7664-41-7505,248 lbs123 lbs505,391 lbs
4Toluene108-88-3434,759 lbs0 lbs434,759 lbs
5Nitric acid7697-37-2397,668 lbs55 lbs397,748 lbs
6Methanol67-56-1274,822 lbs0 lbs281,349 lbs
7Ethylene glycol107-21-1104,877 lbs0 lbs104,877 lbs
8Ethylene oxide75-21-8100,358 lbs0 lbs100,358 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
14Acetaldehyde75-07-037,584 lbs0 lbs37,584 lbs
15Propylene115-07-136,801 lbs0 lbs36,801 lbs
16Methyl isobutyl ketone108-10-136,313 lbs0 lbs36,313 lbs
17Hydrogen sulfide7783-06-431,678 lbs0 lbs31,678 lbs
18Cumene98-82-831,173 lbs0 lbs31,173 lbs
19Phenol108-95-230,497 lbs0 lbs30,497 lbs
20Vinyl acetate108-05-422,306 lbs0 lbs22,306 lbs
21Xylene (mixed isomers)1330-20-717,096 lbs0 lbs17,096 lbs
22Nickel compoundsN49511,795 lbs1,905 lbs13,715 lbs
23Styrene100-42-512,385 lbs0 lbs12,385 lbs
242-Methoxyethanol109-86-411,669 lbs0 lbs11,669 lbs
25Benzene71-43-210,536 lbs0 lbs10,536 lbs
26Nitrate compounds (water dissociable; reportable only when in aqueous solution)N51130 lbs9,885 lbs9,930 lbs
27Chloroethane75-00-39,070 lbs0 lbs9,070 lbs
28Cobalt compoundsN0965,871 lbs886 lbs6,772 lbs
292-Ethoxyethanol110-80-56,044 lbs0 lbs6,044 lbs
30Diphenylamine122-39-45,938 lbs0 lbs5,938 lbs
31tert-Butyl alcohol75-65-05,606 lbs0 lbs5,606 lbs
32Ethylbenzene100-41-45,307 lbs0 lbs5,307 lbs
33Nickel And Nickel CompoundsN4954,878 lbs62 lbs4,940 lbs
34Cobalt And Cobalt CompoundsN0964,551 lbs42 lbs4,593 lbs
35Dimethylamine124-40-33,754 lbs0 lbs3,754 lbs
36Acrylic acid79-10-73,532 lbs0 lbs3,532 lbs
37Methyl methacrylate80-62-63,052 lbs0 lbs3,052 lbs
38Formaldehyde50-00-02,738 lbs102 lbs2,840 lbs
39Propylene oxide75-56-92,352 lbs0 lbs2,352 lbs
40Maleic anhydride108-31-61,577 lbs0 lbs1,577 lbs
41Allyl alcohol107-18-61,569 lbs0 lbs1,569 lbs
421,2,4-Trimethylbenzene95-63-61,065 lbs0 lbs1,065 lbs
43NonylphenolN5301,013 lbs0 lbs1,013 lbs
44Nonylphenol EthoxylatesN5351,008 lbs0 lbs1,008 lbs
45Cyclohexane110-82-7857 lbs0 lbs857 lbs
46Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-9597 lbs0 lbs597 lbs
47Benzoyl chloride98-88-4469 lbs0 lbs469 lbs
48Hydrazine302-01-2437 lbs0 lbs437 lbs
49Lead And Lead CompoundsN420211 lbs10 lbs221 lbs
50Barium compounds (except for barium sulfate (CAS No. 7727-43-7))N040145 lbs30 lbs175 lbs
51Lead compoundsN420138 lbs4 lbs142 lbs
52Copper compoundsN100132 lbs6 lbs138 lbs
53Naphthalene91-20-396 lbs0 lbs96 lbs
54Cyanide compoundsN1065 lbs0 lbs58 lbs
55Chloromethane74-87-351 lbs0 lbs51 lbs
56Butyl acrylate141-32-25 lbs0 lbs5 lbs
57Zinc compoundsN9825 lbs0 lbs5 lbs
58Bis(2-chloroethyl) ether111-44-43 lbs0 lbs3 lbs
59Cumene hydroperoxide80-15-92 lbs0 lbs2 lbs
60Nickel7440-02-02 lbs0 lbs2 lbs
61Boron trifluoride7637-07-21 lbs0 lbs1 lbs
📋
Top chemicals released near this property (2024 only):
n-Hexane, Ethylene, Ammonia, Methanol, Toluene
View the full list of 47 chemicals reported within 2 miles for 2024.
Chemicals Released (2024 Only)(47 chemicals)
#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1n-Hexane110-54-3117,147 lbs0 lbs117,147 lbs
2Ethylene74-85-190,976 lbs0 lbs90,976 lbs
3Ammonia7664-41-754,081 lbs5 lbs54,086 lbs
4Methanol67-56-116,274 lbs0 lbs16,274 lbs
5Toluene108-88-314,342 lbs0 lbs14,342 lbs
6Propylene115-07-110,035 lbs0 lbs10,035 lbs
7Nitric acid7697-37-29,490 lbs5 lbs9,495 lbs
8Ethylene oxide75-21-88,025 lbs0 lbs8,025 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 glycol107-21-13,270 lbs0 lbs3,270 lbs
15Molybdenum trioxide1313-27-52,770 lbs482 lbs3,252 lbs
16Cumene98-82-82,616 lbs0 lbs2,616 lbs
17Vinyl acetate108-05-42,418 lbs0 lbs2,418 lbs
18n-Butyl alcohol71-36-32,203 lbs0 lbs2,203 lbs
19Phenol108-95-21,875 lbs0 lbs1,875 lbs
20Nickel compoundsN4951,017 lbs108 lbs1,125 lbs
21Benzene71-43-21,090 lbs0 lbs1,090 lbs
222-Methoxyethanol109-86-41,027 lbs0 lbs1,027 lbs
23Acetaldehyde75-07-0869 lbs0 lbs869 lbs
24Xylene (mixed isomers)1330-20-7635 lbs0 lbs635 lbs
25Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs622 lbs622 lbs
26Cobalt compoundsN096455 lbs36 lbs491 lbs
27tert-Butyl alcohol75-65-0467 lbs0 lbs467 lbs
282-Ethoxyethanol110-80-5407 lbs0 lbs407 lbs
29Methyl methacrylate80-62-6387 lbs0 lbs387 lbs
30Styrene100-42-5374 lbs0 lbs374 lbs
31Dimethylamine124-40-3341 lbs0 lbs341 lbs
32Ethylbenzene100-41-4275 lbs0 lbs275 lbs
33Maleic anhydride108-31-6186 lbs0 lbs186 lbs
34Acrylic acid79-10-7186 lbs0 lbs186 lbs
35Formaldehyde50-00-0154 lbs0 lbs154 lbs
36Nonylphenol EthoxylatesN535131 lbs0 lbs131 lbs
37Diphenylamine122-39-4105 lbs0 lbs105 lbs
38Propylene oxide75-56-999 lbs0 lbs99 lbs
391,2,4-Trimethylbenzene95-63-699 lbs0 lbs99 lbs
40Cobalt And Cobalt CompoundsN09682 lbs8 lbs90 lbs
41Nickel And Nickel CompoundsN49582 lbs8 lbs90 lbs
42Hydrazine302-01-239 lbs0 lbs39 lbs
43Benzoyl chloride98-88-433 lbs0 lbs33 lbs
44Cyclohexane110-82-724 lbs0 lbs24 lbs
45Lead And Lead CompoundsN42016 lbs1 lbs17 lbs
46Naphthalene91-20-312 lbs0 lbs12 lbs
47NonylphenolN5301 lbs0 lbs1 lbs
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