Data-driven insights for local properties

Complete Property Analysis

Environmental risk, tax analysis, and property details for 12724 Mcnair St, Houston, TX 77015

HCAD #0642250070058
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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
12724 Mcnair St, Houston, TX 77015
Elevation
27.93 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
180.8 acres
61.3% of 500m radius flooded.
Nearest Bayou Stage
N/A
No nearby bayou within monitoring range
Depth-Damage (HCAD Valuation)
$0
Vacant lot (no building data).
Depth-Damage (Neighborhood)
$0
Vacant lot (no building data).
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
32.9th percentile
Property Pollution Ranking
Moderate
Higher pollution than 67% of Houston homes
Compares pollution within 2mi against 10,000 Houston properties. Lower percentiles = higher pollution.
Industrial Pollution Nearby (10 Years)
153 thousandlbs
High
23.4x more than typical Houston property
≈ 8 dump trucks of chemicals within 2 miles
Air Pollution (10 Years)
150 thousandlbs
High
31.0x more than typical Houston property
Includes fugitive emissions (leaks) and stack emissions (smokestacks).
Water Pollution (10 Years)
3 thousandlbs
Very High
Discharges to bayous, streams, and drainage systems.
Facilities Nearby
10
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)152,508 lbs149,553 lbs2,955 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)4,039 lbs3,144 lbs319 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 67% of Houston homes
Each bar's width represents the percentage of Houston homes in that pollution range. This property ranks in the 30-39th percentile.
📋
Top chemicals released near this property (past 10 years):
Styrene, Xylene (mixed isomers), Toluene, n-Hexane, Ethylbenzene
View the full list of 31 chemicals below.
Chemicals Released (2014-2024, 10-Year Total)(31 chemicals)
#ChemicalCAS#Air (lbs/10yr)Water (lbs/10yr)Total (lbs/10yr)
1Styrene100-42-559,223 lbs0 lbs59,223 lbs
2Xylene (mixed isomers)1330-20-721,357 lbs0 lbs21,357 lbs
3Toluene108-88-313,120 lbs0 lbs13,696 lbs
4n-Hexane110-54-312,725 lbs0 lbs12,725 lbs
5Ethylbenzene100-41-410,531 lbs0 lbs10,531 lbs
6Methanol67-56-16,541 lbs0 lbs6,541 lbs
7Benzene71-43-26,362 lbs0 lbs6,362 lbs
8Ammonia7664-41-73,125 lbs0 lbs3,125 lbs
9Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-03,066 lbs0 lbs3,066 lbs
10Manganese7439-96-51,668 lbs543 lbs2,211 lbs
11Chromium7440-47-31,182 lbs925 lbs2,106 lbs
12Nickel7440-02-01,350 lbs544 lbs1,894 lbs
13Cyclohexane110-82-71,732 lbs0 lbs1,732 lbs
14Chlorine7782-50-51,412 lbs0 lbs1,412 lbs
15Manganese compoundsN450990 lbs262 lbs1,252 lbs
16Formic acid64-18-61,012 lbs0 lbs1,012 lbs
17Certain glycol ethersN230903 lbs0 lbs903 lbs
181,2,4-Trimethylbenzene95-63-6863 lbs0 lbs863 lbs
19Chromium compounds (except for chromite ore mined in the Transvaal Region)N090410 lbs417 lbs828 lbs
20Nickel compoundsN495443 lbs250 lbs694 lbs
21Ethylene glycol107-21-1398 lbs0 lbs398 lbs
22Aluminum (fume or dust)7429-90-5250 lbs0 lbs250 lbs
23Copper7440-50-8250 lbs0 lbs250 lbs
24Cobalt7440-48-4250 lbs0 lbs250 lbs
25Phthalic anhydride85-44-9184 lbs0 lbs184 lbs
26Maleic anhydride108-31-6139 lbs0 lbs139 lbs
27Naphthalene91-20-329 lbs0 lbs29 lbs
28Nitric acid7697-37-228 lbs0 lbs28 lbs
29Nonylphenol EthoxylatesN53510 lbs0 lbs10 lbs
30Lead And Lead CompoundsN4200 lbs7 lbs7 lbs
31Lead compoundsN4200 lbs6 lbs7 lbs
📋
Top chemicals released near this property (2024 only):
Methanol, Toluene, Cyclohexane, Manganese, Chromium
View the full list of 9 chemicals reported within 2 miles for 2024.
Chemicals Released (2024 Only)(9 chemicals)
#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Methanol67-56-11,343 lbs0 lbs1,343 lbs
2Toluene108-88-3314 lbs0 lbs890 lbs
3Cyclohexane110-82-7759 lbs0 lbs759 lbs
4Manganese7439-96-5162 lbs86 lbs248 lbs
5Chromium7440-47-371 lbs144 lbs215 lbs
6Certain glycol ethersN230214 lbs0 lbs214 lbs
7Nickel7440-02-0108 lbs86 lbs194 lbs
8Formic acid64-18-6173 lbs0 lbs173 lbs
9Lead compoundsN4200 lbs3 lbs3 lbs
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