Complete Property Analysis

Environmental risk, tax analysis, and property details for 9210 Carlow Ln, La Porte, TX 77571

HCAD #0790830070105

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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

9210 Carlow Ln, La Porte, TX 77571

Building Size

3,481sqft

Total structure area from HCAD building records.

Elevation

22.24 ft

Height above sea level from USGS data.

FEMA Flood Zone

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)

32.08 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)

$186,197

Based on HCAD building value of $286,457.

Depth-Damage (Neighborhood)

$178,432

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.

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.

Minimal flood hazard area - property outside mapped high-risk zones

Flood insurance available at preferred rates - over 25% of claims occur in low-risk areas

Review official FEMA Flood Insurance Rate Map (FIRM) for detailed flood zone boundaries

Contact Harris County Flood Control District (HCFCD) for drainage projects and flood information

🏭Industrial Pollution Exposure

42.3th percentile

Property Pollution Ranking

Moderate

Higher pollution than 58% of Houston homes

Compares pollution within 2mi against 10,000 Houston properties. Lower percentiles = higher pollution.

Industrial Pollution Nearby (10 Years)

32 thousandlbs

Above Typical

4.8x more than typical Houston property

≈ 2 dump trucks of chemicals within 2 miles

Air Pollution (10 Years)

32 thousandlbs

Above Typical

6.5x more than typical Houston property

Includes fugitive emissions (leaks) and stack emissions (smokestacks).

Water Pollution (10 Years)

0lbs

None

Discharges to bayous, streams, and drainage systems.

Facilities Nearby

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.

Period	Total	Air
Typical Houston Property (2014-2024)	6,524 lbs	4,822 lbs
This Property (2014-2024)	31,513 lbs	31,513 lbs
Typical Houston Property (2024 Only)	2 lbs	1 lbs
This Property (2024 Only)	6,054 lbs	6,054 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

70-79th

5.8%

80-89th

4.3%

90-100thLowest Pollution

34.2%

Higher pollution than 58% of Houston homes

Each bar's width represents the percentage of Houston homes in that pollution range. This property ranks in the 40-49th percentile (slightly higher than average).

📋

Top chemicals released near this property (past 10 years):
Ammonia, Methanol, n-Hexane, Dimethylamine, Certain glycol ethers
View the full list of 15 chemicals below.

Chemicals Released (2014-2024, 10-Year Total)(15 chemicals)

#	Chemical	CAS#	Air (lbs/10yr)	Total (lbs/10yr)
1	Ammonia	7664-41-7	13,339 lbs	13,339 lbs
2	Methanol	67-56-1	6,130 lbs	12,657 lbs
3	n-Hexane	110-54-3	7,167 lbs	7,167 lbs
4	Dimethylamine	124-40-3	1,745 lbs	1,745 lbs
5	Certain glycol ethers	N230	1,446 lbs	1,447 lbs
6	Maleic anhydride	108-31-6	611 lbs	611 lbs
7	Cyclohexane	110-82-7	480 lbs	480 lbs
8	Nitric acid	7697-37-2	201 lbs	201 lbs
9	Bifenthrin	82657-04-3	149 lbs	149 lbs
10	Propylene oxide	75-56-9	118 lbs	118 lbs
11	Diphenylamine	122-39-4	87 lbs	87 lbs
12	Cyanide compounds	N106	5 lbs	58 lbs
13	tert-Butyl alcohol	75-65-0	23 lbs	23 lbs
14	Oxyfluorfen	42874-03-3	10 lbs	10 lbs
15	Toluene	108-88-3	2 lbs	2 lbs

📋

Top chemicals released near this property (2024 only):
Ammonia, Methanol, n-Hexane, Dimethylamine, Maleic anhydride
View the full list of 5 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only)(5 chemicals)

#	Chemical	CAS#	Air (lbs/yr)	Total (lbs/yr)
1	Ammonia	7664-41-7	3,479 lbs	3,479 lbs
2	Methanol	67-56-1	1,847 lbs	1,847 lbs
3	n-Hexane	110-54-3	607 lbs	607 lbs
4	Dimethylamine	124-40-3	113 lbs	113 lbs
5	Maleic anhydride	108-31-6	8 lbs	8 lbs