Data-driven insights for local properties

Complete Property Analysis

Environmental risk, tax analysis, and property details for 1221 Robinson Rd, La Porte, TX 77571

HCAD #1176580010007
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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
1221 Robinson Rd, La Porte, TX 77571
Building Size
3,127sqft
Total structure area from HCAD building records.
Elevation
25.44 ft
Height above sea level from USGS data.
FEMA Flood Zone
X
Moderate to Low Risk - Outside 500-year floodplain
Overall Risk
Very Low
Risk based on FEMA zone and simulation.
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 Low
Flood Depth
0 ft±0.5 ft
No flooding at current water level.
Water Surface Elevation (WSE)
N/A
Water surface elevation data not available.
Area Inundated
212.2 acres
71.9% of 500m radius flooded.
Nearest Bayou Stage
N/A
No nearby bayou within monitoring range
Depth-Damage (HCAD Valuation)
$0
Property not flooded. No damage to calculate.
Depth-Damage (Neighborhood)
$0
Property not flooded. No damage to calculate.
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 Safe
Safety Margin: 0 feet
Severity
Safe
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
11.5th percentile
Property Pollution Ranking
High
Higher pollution than 89% of Houston homes
Compares pollution within 2mi against 10,000 Houston properties. Lower percentiles = higher pollution.
Industrial Pollution Nearby (10 Years)
5.36 millionlbs
Extremely High
820.8x more than typical Houston property
≈ 268 dump trucks of chemicals within 2 miles
Air Pollution (10 Years)
4.64 millionlbs
Extremely High
962.7x more than typical Houston property
Includes fugitive emissions (leaks) and stack emissions (smokestacks).
Water Pollution (10 Years)
713 thousandlbs
Extremely High
Discharges to bayous, streams, and drainage systems.
Facilities Nearby
15
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)5,355,020 lbs4,642,474 lbs712,546 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)435,535 lbs368,920 lbs66,615 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 89% 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, Ethylene, Propylene, n-Hexane
View the full list of 29 chemicals below.
Chemicals Released (2014-2024, 10-Year Total)(29 chemicals)
#ChemicalCAS#Air (lbs/10yr)Water (lbs/10yr)Total (lbs/10yr)
1Methanol67-56-1861,097 lbs648,518 lbs1,509,615 lbs
2Vinyl acetate108-05-41,090,664 lbs5,684 lbs1,096,348 lbs
3Ethylene74-85-11,031,220 lbs0 lbs1,031,220 lbs
4Propylene115-07-1929,229 lbs0 lbs929,229 lbs
5n-Hexane110-54-3344,192 lbs0 lbs344,192 lbs
6Ammonia7664-41-7115,714 lbs7,555 lbs123,269 lbs
7Certain glycol ethersN23062,831 lbs0 lbs62,831 lbs
8Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs47,700 lbs47,700 lbs
9Xylene (mixed isomers)1330-20-743,144 lbs0 lbs43,144 lbs
10Methyl iodide74-88-437,993 lbs0 lbs37,993 lbs
11Formaldehyde50-00-036,646 lbs0 lbs36,646 lbs
12Chlorine7782-50-521,527 lbs1,928 lbs23,455 lbs
13Acetaldehyde75-07-022,201 lbs0 lbs22,201 lbs
14Ethylene glycol107-21-116,751 lbs0 lbs16,751 lbs
15Boron trifluoride7637-07-214,190 lbs0 lbs14,190 lbs
16Zinc compoundsN9824,689 lbs1,141 lbs5,830 lbs
17Maleic anhydride108-31-65,569 lbs0 lbs5,569 lbs
18Mercury7439-97-60 lbs0 lbs2,200 lbs
19Di(2-ethylhexyl) phthalate117-81-72,020 lbs0 lbs2,020 lbs
20Aluminum oxide (fibrous forms)1344-28-11,750 lbs0 lbs1,750 lbs
21Ethylbenzene100-41-4316 lbs3 lbs319 lbs
22Naphthalene91-20-3245 lbs8 lbs253 lbs
231,3-Butadiene106-99-0242 lbs0 lbs242 lbs
24n-Butyl alcohol71-36-387 lbs0 lbs87 lbs
25sec-Butyl alcohol78-92-268 lbs0 lbs68 lbs
26Chromium7440-47-345 lbs0 lbs45 lbs
27Benzene71-43-231 lbs5 lbs36 lbs
28Toluene108-88-313 lbs3 lbs16 lbs
29Lead7439-92-10 lbs1 lbs1 lbs
📋
Top chemicals released near this property (2024 only):
Methanol, Propylene, Vinyl acetate, Ethylene, n-Hexane
View the full list of 26 chemicals reported within 2 miles for 2024.
Chemicals Released (2024 Only)(26 chemicals)
#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Methanol67-56-167,101 lbs64,000 lbs131,101 lbs
2Propylene115-07-188,054 lbs0 lbs88,054 lbs
3Vinyl acetate108-05-484,880 lbs410 lbs85,290 lbs
4Ethylene74-85-180,115 lbs0 lbs80,115 lbs
5n-Hexane110-54-324,235 lbs0 lbs24,235 lbs
6Ammonia7664-41-79,091 lbs37 lbs9,128 lbs
7Formaldehyde50-00-03,559 lbs0 lbs3,559 lbs
8Certain glycol ethersN2302,700 lbs0 lbs2,700 lbs
9Chlorine7782-50-52,260 lbs0 lbs2,260 lbs
10Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs2,100 lbs2,100 lbs
11Methyl iodide74-88-41,600 lbs0 lbs1,600 lbs
12Maleic anhydride108-31-61,569 lbs0 lbs1,569 lbs
13Boron trifluoride7637-07-21,192 lbs0 lbs1,192 lbs
14Xylene (mixed isomers)1330-20-71,144 lbs0 lbs1,144 lbs
15Zinc compoundsN982425 lbs60 lbs485 lbs
16Ethylbenzene100-41-4316 lbs0 lbs316 lbs
17Naphthalene91-20-3245 lbs6 lbs251 lbs
18Aluminum oxide (fibrous forms)1344-28-1250 lbs0 lbs250 lbs
19Acetaldehyde75-07-0150 lbs0 lbs150 lbs
201,3-Butadiene106-99-08 lbs0 lbs8 lbs
21Toluene108-88-37 lbs1 lbs8 lbs
22n-Butyl alcohol71-36-37 lbs0 lbs7 lbs
23sec-Butyl alcohol78-92-25 lbs0 lbs5 lbs
24Benzene71-43-25 lbs1 lbs5 lbs
25Ethylene glycol107-21-11 lbs0 lbs1 lbs
26Lead7439-92-10 lbs1 lbs1 lbs
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