Complete Property Analysis

Environmental risk, tax analysis, and property details for 10423 Munn St, Houston, TX 77029

HCAD #0552130240031

🧭Jump to Section

🌍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

10423 Munn St, Houston, TX 77029

Building Size

3,041sqft

Total structure area from HCAD building records.

Elevation

27.66 ft

Height above sea level from USGS data.

FEMA Flood Zone

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

89.0 acres

30.2% of 500m radius flooded.

Nearest Bayou Stage

N/A

No nearby bayou within monitoring range

Depth-Damage (HCAD Valuation)

Property not flooded. No damage to calculate.

Depth-Damage (Neighborhood)

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.

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

27.8th percentile

Property Pollution Ranking

Moderate

Higher pollution than 72% of Houston homes

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

Industrial Pollution Nearby (10 Years)

307 thousandlbs

High

47.1x more than typical Houston property

≈ 15 dump trucks of chemicals within 2 miles

Air Pollution (10 Years)

307 thousandlbs

Very High

63.7x more than typical Houston property

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

Water Pollution (10 Years)

2lbs

Low

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	Water
Typical Houston Property (2014-2024)	6,524 lbs	4,822 lbs	0 lbs
This Property (2014-2024)	307,234 lbs	307,233 lbs	2 lbs
Typical Houston Property (2024 Only)	2 lbs	1 lbs	0 lbs
This Property (2024 Only)	49,880 lbs	49,880 lbs	1 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 72% of Houston homes

Each bar's width represents the percentage of Houston homes in that pollution range. This property ranks in the 20-29th percentile.

📋

Top chemicals released near this property (past 10 years):
Ammonia, Xylene (mixed isomers), Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Methanol, Zinc compounds
View the full list of 12 chemicals below.

Chemicals Released (2014-2024, 10-Year Total)(12 chemicals)

#	Chemical	CAS#	Air (lbs/10yr)	Water (lbs/10yr)	Total (lbs/10yr)
1	Ammonia	7664-41-7	295,214 lbs	0 lbs	295,214 lbs
2	Xylene (mixed isomers)	1330-20-7	3,210 lbs	0 lbs	3,210 lbs
3	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7647-01-0	3,066 lbs	0 lbs	3,066 lbs
4	Methanol	67-56-1	2,781 lbs	0 lbs	2,781 lbs
5	Zinc compounds	N982	1,452 lbs	0 lbs	1,452 lbs
6	Ethylbenzene	100-41-4	700 lbs	0 lbs	700 lbs
7	Nickel	7440-02-0	376 lbs	1 lbs	376 lbs
8	Lead	7439-92-1	229 lbs	1 lbs	230 lbs
9	1,2,4-Trimethylbenzene	95-63-6	125 lbs	0 lbs	125 lbs
10	Naphthalene	91-20-3	67 lbs	0 lbs	67 lbs
11	Mercury	7439-97-6	12 lbs	0 lbs	12 lbs
12	Dioxin and dioxin-like compounds	N150	1 lbs	0 lbs	1 lbs

📋

Top chemicals released near this property (2024 only):
Ammonia, Lead, Zinc compounds, Nickel
View the full list of 4 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only)(4 chemicals)