Data-driven insights for local properties

Complete Property Analysis

Environmental risk, tax analysis, and property details for 7622 Elm St, Houston, TX 77023

HCAD #0660720040009
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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
7622 Elm St, Houston, TX 77023
Building Size
1,100sqft
Total structure area from HCAD building records.
Elevation
32.77 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
127.4 acres
43.2% 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
23.9th percentile
Property Pollution Ranking
High
Higher pollution than 76% of Houston homes
Compares pollution within 2mi against 10,000 Houston properties. Lower percentiles = higher pollution.
Industrial Pollution Nearby (10 Years)
546 thousandlbs
Very High
83.7x more than typical Houston property
≈ 27 dump trucks of chemicals within 2 miles
Air Pollution (10 Years)
545 thousandlbs
Extremely High
113.1x more than typical Houston property
Includes fugitive emissions (leaks) and stack emissions (smokestacks).
Water Pollution (10 Years)
625lbs
High
Discharges to bayous, streams, and drainage systems.
Facilities Nearby
7
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)545,810 lbs545,185 lbs625 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)68,292 lbs68,265 lbs27 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 76% 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):
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Xylene (mixed isomers), Ammonia, Ethylene glycol, 1,4-Dioxane
View the full list of 47 chemicals below.
Chemicals Released (2014-2024, 10-Year Total)(47 chemicals)
#ChemicalCAS#Air (lbs/10yr)Water (lbs/10yr)Total (lbs/10yr)
1Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-9376,938 lbs0 lbs376,938 lbs
2Xylene (mixed isomers)1330-20-765,543 lbs0 lbs65,543 lbs
3Ammonia7664-41-751,735 lbs0 lbs51,735 lbs
4Ethylene glycol107-21-114,690 lbs0 lbs14,690 lbs
51,4-Dioxane123-91-110,779 lbs0 lbs10,779 lbs
6Toluene108-88-37,966 lbs0 lbs7,966 lbs
7Hydrogen sulfide7783-06-46,306 lbs0 lbs6,306 lbs
8Phthalic anhydride85-44-92,000 lbs0 lbs2,000 lbs
9Vinyl acetate108-05-41,608 lbs0 lbs1,608 lbs
10Manganese7439-96-51,000 lbs331 lbs1,331 lbs
11Acetaldehyde75-07-01,011 lbs0 lbs1,011 lbs
12Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-0999 lbs0 lbs999 lbs
13Lead7439-92-1622 lbs256 lbs878 lbs
14Methanol67-56-1873 lbs0 lbs873 lbs
15Polycyclic aromatic compoundsN590723 lbs1 lbs732 lbs
161,1,1,2-Tetrachloroethane630-20-6434 lbs0 lbs434 lbs
17Nitric acid7697-37-2397 lbs0 lbs397 lbs
18Carbon disulfide75-15-0351 lbs0 lbs351 lbs
19Propylene115-07-1227 lbs0 lbs227 lbs
20Ethylbenzene100-41-4217 lbs0 lbs218 lbs
21Styrene100-42-5162 lbs0 lbs163 lbs
22Naphthalene91-20-3117 lbs0 lbs118 lbs
23Dimethylamine124-40-390 lbs0 lbs90 lbs
24Chromium compounds (except for chromite ore mined in the Transvaal Region)N09076 lbs0 lbs76 lbs
25Lead And Lead CompoundsN42065 lbs10 lbs75 lbs
26Vanadium compoundsN77065 lbs0 lbs65 lbs
27Zinc compoundsN98214 lbs26 lbs40 lbs
28Allyl alcohol107-18-634 lbs0 lbs34 lbs
29Methoxone sodium salt3653-48-320 lbs0 lbs20 lbs
30Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N09019 lbs0 lbs19 lbs
31Triethylamine121-44-817 lbs0 lbs17 lbs
32Benzo[g,h,i]perylene191-24-215 lbs0 lbs15 lbs
33tert-Butyl alcohol75-65-015 lbs0 lbs15 lbs
34Acrolein107-02-813 lbs0 lbs13 lbs
35Nickel compoundsN49510 lbs0 lbs10 lbs
36Hydroquinone123-31-99 lbs0 lbs9 lbs
37Diaminotoluene (mixed isomers)25376-45-84 lbs0 lbs4 lbs
38Mercury compoundsN4583 lbs1 lbs4 lbs
39Lead compoundsN4204 lbs0 lbs4 lbs
40Pyridine110-86-13 lbs0 lbs3 lbs
41Benzene71-43-23 lbs0 lbs3 lbs
42Chloroethane75-00-32 lbs0 lbs2 lbs
43p-Cresol106-44-52 lbs0 lbs2 lbs
44Trichloroethylene79-01-61 lbs0 lbs1 lbs
452,4-Diaminotoluene95-80-71 lbs0 lbs1 lbs
461,3-Butadiene106-99-01 lbs0 lbs1 lbs
47Cyclohexane110-82-71 lbs0 lbs1 lbs
📋
Top chemicals released near this property (2024 only):
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Xylene (mixed isomers), Ethylene glycol, Hydrogen sulfide, 1,4-Dioxane
View the full list of 17 chemicals reported within 2 miles for 2024.
Chemicals Released (2024 Only)(17 chemicals)
#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-950,698 lbs0 lbs50,698 lbs
2Xylene (mixed isomers)1330-20-710,496 lbs0 lbs10,496 lbs
3Ethylene glycol107-21-15,094 lbs0 lbs5,094 lbs
4Hydrogen sulfide7783-06-4592 lbs0 lbs592 lbs
51,4-Dioxane123-91-1328 lbs0 lbs328 lbs
6Carbon disulfide75-15-0241 lbs0 lbs241 lbs
7Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-0221 lbs0 lbs221 lbs
81,1,1,2-Tetrachloroethane630-20-6212 lbs0 lbs212 lbs
9Methanol67-56-1152 lbs0 lbs152 lbs
10Ammonia7664-41-7107 lbs0 lbs107 lbs
11Lead7439-92-120 lbs22 lbs42 lbs
12Polycyclic aromatic compoundsN59037 lbs0 lbs37 lbs
13Lead And Lead CompoundsN42031 lbs5 lbs36 lbs
14Dimethylamine124-40-323 lbs0 lbs23 lbs
15Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0906 lbs0 lbs6 lbs
16Vinyl acetate108-05-45 lbs0 lbs5 lbs
17Acetaldehyde75-07-01 lbs0 lbs1 lbs
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