Complete Property Analysis

Environmental risk, tax analysis, and property details for 4222 Phlox, Houston, TX 77051

HCAD #0771330090035

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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

4222 Phlox, Houston, TX 77051

Building Size

2,595sqft

Total structure area from HCAD building records.

Elevation

43.61 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

65.2 acres

22.1% 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

28.6th percentile

Property Pollution Ranking

Moderate

Higher pollution than 71% of Houston homes

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

Industrial Pollution Nearby (10 Years)

278 thousandlbs

High

42.7x more than typical Houston property

≈ 14 dump trucks of chemicals within 2 miles

Air Pollution (10 Years)

278 thousandlbs

Very High

57.7x 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)	278,418 lbs	278,418 lbs
Typical Houston Property (2024 Only)	2 lbs	1 lbs
This Property (2024 Only)	5,606 lbs	5,606 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 71% 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):
Styrene, Phthalic anhydride, n-Butyl alcohol, Methyl isobutyl ketone, Maleic anhydride
View the full list of 13 chemicals below.

Chemicals Released (2014-2024, 10-Year Total)(13 chemicals)

#	Chemical	CAS#	Air (lbs/10yr)	Total (lbs/10yr)
1	Styrene	100-42-5	139,804 lbs	139,804 lbs
2	Phthalic anhydride	85-44-9	66,516 lbs	66,516 lbs
3	n-Butyl alcohol	71-36-3	22,867 lbs	22,867 lbs
4	Methyl isobutyl ketone	108-10-1	13,946 lbs	13,946 lbs
5	Maleic anhydride	108-31-6	13,631 lbs	13,631 lbs
6	Toluene	108-88-3	8,481 lbs	8,481 lbs
7	Xylene (mixed isomers)	1330-20-7	4,289 lbs	4,289 lbs
8	Methyl methacrylate	80-62-6	3,015 lbs	3,015 lbs
9	Ethylene glycol	107-21-1	2,448 lbs	2,448 lbs
10	Phenol	108-95-2	2,085 lbs	2,085 lbs
11	Ethylbenzene	100-41-4	1,325 lbs	1,325 lbs
12	4,4'-Isopropylidenediphenol	80-05-7	6 lbs	6 lbs
13	Methanol	67-56-1	5 lbs	5 lbs

📋

Top chemicals released near this property (2024 only):
Styrene, Phthalic anhydride, Methyl isobutyl ketone, Toluene, Phenol
View the full list of 10 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only)(10 chemicals)

#	Chemical	CAS#	Air (lbs/yr)	Total (lbs/yr)
1	Styrene	100-42-5	2,610 lbs	2,610 lbs
2	Phthalic anhydride	85-44-9	1,461 lbs	1,461 lbs
3	Methyl isobutyl ketone	108-10-1	641 lbs	641 lbs
4	Toluene	108-88-3	505 lbs	505 lbs
5	Phenol	108-95-2	329 lbs	329 lbs
6	Maleic anhydride	108-31-6	31 lbs	31 lbs
7	Xylene (mixed isomers)	1330-20-7	16 lbs	16 lbs
8	Ethylene glycol	107-21-1	7 lbs	7 lbs
9	4,4'-Isopropylidenediphenol	80-05-7	6 lbs	6 lbs
10	Ethylbenzene	100-41-4	3 lbs	3 lbs