Data-driven insights for local properties

Complete Property Analysis

Environmental risk, tax analysis, and property details for 433 Mascot St, Houston, TX 77029

HCAD #0141090040015
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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
433 Mascot St, Houston, TX 77029
Building Size
1,930sqft
Total structure area from HCAD building records.
Elevation
29.02 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
47.6 acres
16.1% 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
5.8th percentile
Property Pollution Ranking
Very High
Higher pollution than 94% of Houston homes
Compares pollution within 2mi against 10,000 Houston properties. Lower percentiles = higher pollution.
Industrial Pollution Nearby (10 Years)
22.7 millionlbs
Extremely High
3479.0x more than typical Houston property
≈ 1.1K dump trucks of chemicals within 2 miles
Air Pollution (10 Years)
9.6 millionlbs
Extremely High
1990.2x more than typical Houston property
Includes fugitive emissions (leaks) and stack emissions (smokestacks).
Water Pollution (10 Years)
13.1 millionlbs
Extremely High
Discharges to bayous, streams, and drainage systems.
Facilities Nearby
19
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)22,698,327 lbs9,597,497 lbs13,100,830 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)2,810,370 lbs756,668 lbs2,053,702 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 94% of Houston homes
Each bar's width represents the percentage of Houston homes in that pollution range. This property ranks in the 0-9th percentile (top 10% most polluted).
📋
Top chemicals released near this property (past 10 years):
Nitrate compounds (water dissociable; reportable only when in aqueous solution), Hydrogen cyanide, Styrene, Ammonia, Propylene
View the full list of 77 chemicals below.
Chemicals Released (2014-2024, 10-Year Total)(77 chemicals)
#ChemicalCAS#Air (lbs/10yr)Water (lbs/10yr)Total (lbs/10yr)
1Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs13,038,121 lbs13,038,121 lbs
2Hydrogen cyanide74-90-82,226,566 lbs0 lbs2,226,566 lbs
3Styrene100-42-51,727,187 lbs7,271 lbs1,734,459 lbs
4Ammonia7664-41-71,437,873 lbs34,223 lbs1,472,096 lbs
5Propylene115-07-1991,303 lbs0 lbs991,303 lbs
6n-Hexane110-54-3457,245 lbs0 lbs457,252 lbs
7Xylene (mixed isomers)1330-20-7386,319 lbs627 lbs386,976 lbs
8Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-9383,635 lbs0 lbs383,635 lbs
9Ethylene74-85-1308,912 lbs0 lbs308,912 lbs
10Benzene71-43-2267,817 lbs467 lbs268,295 lbs
11Toluene108-88-3259,011 lbs261 lbs259,296 lbs
12Hydrogen sulfide7783-06-4230,430 lbs3,527 lbs233,957 lbs
131,3-Butadiene106-99-0205,381 lbs1 lbs205,382 lbs
14n-Butyl alcohol71-36-3137,606 lbs0 lbs137,606 lbs
15Cyclohexane110-82-7132,775 lbs0 lbs132,784 lbs
16Ozone10028-15-6115,228 lbs0 lbs115,228 lbs
17Diethanolamine111-42-2101,560 lbs0 lbs101,560 lbs
18Ethylbenzene100-41-447,979 lbs113 lbs48,101 lbs
19Propionaldehyde123-38-631,241 lbs0 lbs31,241 lbs
20Butyraldehyde123-72-822,150 lbs0 lbs22,150 lbs
211,2,4-Trimethylbenzene95-63-620,469 lbs0 lbs20,627 lbs
22Ethylene glycol107-21-114,690 lbs0 lbs14,699 lbs
23Dicyclopentadiene77-73-614,013 lbs0 lbs14,013 lbs
241,4-Dioxane123-91-110,779 lbs0 lbs10,779 lbs
25Sodium nitrite7632-00-00 lbs9,470 lbs9,470 lbs
26Naphthalene91-20-39,229 lbs75 lbs9,313 lbs
27Carbon disulfide75-15-08,908 lbs0 lbs8,908 lbs
28Cyanide compoundsN1065,934 lbs45 lbs5,979 lbs
29Polycyclic aromatic compoundsN5905,221 lbs526 lbs5,956 lbs
30Molybdenum trioxide1313-27-55,795 lbs0 lbs5,795 lbs
31Manganese7439-96-55,228 lbs331 lbs5,559 lbs
32Phenol108-95-21,635 lbs2,959 lbs4,594 lbs
33Methanol67-56-14,400 lbs0 lbs4,400 lbs
34Isobutyraldehyde78-84-24,080 lbs0 lbs4,080 lbs
35Cumene98-82-83,828 lbs0 lbs3,830 lbs
36Zinc compoundsN982233 lbs1,207 lbs2,931 lbs
37Phthalic anhydride85-44-92,000 lbs0 lbs2,000 lbs
38Vinyl acetate108-05-41,608 lbs0 lbs1,608 lbs
39Lead7439-92-11,110 lbs383 lbs1,493 lbs
40Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-01,460 lbs0 lbs1,460 lbs
41Carbonyl sulfide463-58-11,451 lbs0 lbs1,451 lbs
42Nickel compoundsN495654 lbs489 lbs1,143 lbs
43Acetaldehyde75-07-01,011 lbs0 lbs1,011 lbs
44Phenanthrene85-01-8937 lbs0 lbs937 lbs
45Vanadium compoundsN770144 lbs509 lbs653 lbs
461,1,1,2-Tetrachloroethane630-20-6434 lbs0 lbs434 lbs
47Biphenyl92-52-4345 lbs0 lbs364 lbs
48Cresol (mixed isomers)1319-77-3232 lbs0 lbs232 lbs
49Lead And Lead CompoundsN420204 lbs17 lbs222 lbs
50Mercury compoundsN458200 lbs2 lbs203 lbs
51Nickel And Nickel CompoundsN49566 lbs123 lbs189 lbs
52Cobalt compoundsN096131 lbs24 lbs155 lbs
53Chlorine7782-50-5120 lbs0 lbs120 lbs
54Mercury And Mercury CompoundsN458109 lbs0 lbs109 lbs
55Lead compoundsN42047 lbs52 lbs99 lbs
56Dimethylamine124-40-390 lbs0 lbs90 lbs
57Mercury7439-97-689 lbs0 lbs89 lbs
58Isoprene78-79-560 lbs0 lbs60 lbs
59Anthracene120-12-744 lbs0 lbs44 lbs
60Cobalt And Cobalt CompoundsN09642 lbs0 lbs42 lbs
61Antimony compoundsN01038 lbs0 lbs38 lbs
62Benzo[g,h,i]perylene191-24-228 lbs7 lbs36 lbs
63Nickel7440-02-035 lbs0 lbs35 lbs
64Allyl alcohol107-18-634 lbs0 lbs34 lbs
65tert-Butyl alcohol75-65-022 lbs0 lbs22 lbs
66Methoxone sodium salt3653-48-320 lbs0 lbs20 lbs
67Triethylamine121-44-817 lbs0 lbs17 lbs
68Acrolein107-02-813 lbs0 lbs13 lbs
69Chromium compounds (except for chromite ore mined in the Transvaal Region)N09011 lbs0 lbs11 lbs
70Hydroquinone123-31-99 lbs0 lbs9 lbs
71Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0908 lbs0 lbs8 lbs
72Diaminotoluene (mixed isomers)25376-45-84 lbs0 lbs4 lbs
73Pyridine110-86-13 lbs0 lbs3 lbs
74Chloroethane75-00-32 lbs0 lbs2 lbs
75p-Cresol106-44-52 lbs0 lbs2 lbs
76Trichloroethylene79-01-61 lbs0 lbs1 lbs
772,4-Diaminotoluene95-80-71 lbs0 lbs1 lbs
📋
Top chemicals released near this property (2024 only):
Nitrate compounds (water dissociable; reportable only when in aqueous solution), Hydrogen cyanide, Ammonia, Styrene, Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)
View the full list of 47 chemicals reported within 2 miles for 2024.
Chemicals Released (2024 Only)(47 chemicals)
#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs2,051,661 lbs2,051,661 lbs
2Hydrogen cyanide74-90-8177,459 lbs0 lbs177,459 lbs
3Ammonia7664-41-7131,752 lbs1,105 lbs132,856 lbs
4Styrene100-42-5130,937 lbs291 lbs131,229 lbs
5Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-950,799 lbs0 lbs50,799 lbs
6Xylene (mixed isomers)1330-20-741,382 lbs10 lbs41,392 lbs
7Propylene115-07-136,754 lbs0 lbs36,754 lbs
8n-Hexane110-54-335,632 lbs0 lbs35,632 lbs
9Ozone10028-15-625,701 lbs0 lbs25,701 lbs
10Toluene108-88-321,568 lbs8 lbs21,576 lbs
11Benzene71-43-220,371 lbs114 lbs20,485 lbs
12Ethylene74-85-117,345 lbs0 lbs17,345 lbs
13Hydrogen sulfide7783-06-414,137 lbs0 lbs14,137 lbs
141,3-Butadiene106-99-013,469 lbs0 lbs13,469 lbs
15Cyclohexane110-82-711,534 lbs0 lbs11,534 lbs
16Diethanolamine111-42-210,082 lbs0 lbs10,082 lbs
17Ethylene glycol107-21-15,094 lbs0 lbs5,094 lbs
18Ethylbenzene100-41-44,069 lbs5 lbs4,074 lbs
19Molybdenum trioxide1313-27-51,804 lbs0 lbs1,804 lbs
201,2,4-Trimethylbenzene95-63-61,671 lbs0 lbs1,671 lbs
21Carbonyl sulfide463-58-11,041 lbs0 lbs1,041 lbs
22Naphthalene91-20-3995 lbs7 lbs1,002 lbs
23Cumene98-82-8525 lbs0 lbs525 lbs
24Carbon disulfide75-15-0484 lbs0 lbs484 lbs
25Polycyclic aromatic compoundsN590392 lbs55 lbs447 lbs
26Sodium nitrite7632-00-00 lbs371 lbs371 lbs
271,4-Dioxane123-91-1328 lbs0 lbs328 lbs
28Lead7439-92-1248 lbs23 lbs270 lbs
29Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-0221 lbs0 lbs221 lbs
301,1,1,2-Tetrachloroethane630-20-6212 lbs0 lbs212 lbs
31Phenol108-95-2164 lbs8 lbs172 lbs
32Methanol67-56-1152 lbs0 lbs152 lbs
33Lead And Lead CompoundsN420128 lbs7 lbs135 lbs
34Zinc compoundsN98222 lbs32 lbs54 lbs
35Cobalt And Cobalt CompoundsN09642 lbs0 lbs42 lbs
36Phenanthrene85-01-836 lbs0 lbs36 lbs
37Biphenyl92-52-433 lbs0 lbs33 lbs
38Mercury And Mercury CompoundsN45829 lbs0 lbs30 lbs
39Dimethylamine124-40-323 lbs0 lbs23 lbs
40Benzo[g,h,i]perylene191-24-28 lbs5 lbs13 lbs
41Isoprene78-79-58 lbs0 lbs8 lbs
42Mercury7439-97-67 lbs0 lbs7 lbs
43Vinyl acetate108-05-45 lbs0 lbs5 lbs
44Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0902 lbs0 lbs2 lbs
45Acetaldehyde75-07-01 lbs0 lbs1 lbs
46Cresol (mixed isomers)1319-77-31 lbs0 lbs1 lbs
47Anthracene120-12-71 lbs0 lbs1 lbs
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