Data-driven insights for local properties

Complete Property Analysis

Environmental risk, tax analysis, and property details for 2108 Marshall St, Pasadena, TX 77506

HCAD #0771310030004
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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
2108 Marshall St, Pasadena, TX 77506
Building Size
1,396sqft
Total structure area from HCAD building records.
Elevation
26.95 ft
Height above sea level from USGS data.
FEMA Flood Zone
X
Moderate to Low Risk - Outside 500-year floodplain
Overall Risk
Very High
Property flooded at 9.84ft depth.
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 High
Flood Depth
9.84 ft±0.5 ft
Depth of water above ground level.
Water Surface Elevation (WSE)
36.79 ft
Water surface elevation relative to sea level (NAVD88 datum).
Area Inundated
136.1 acres
46.2% of 500m radius flooded.
Nearest Bayou Stage
N/A
No nearby bayou within monitoring range
Depth-Damage (HCAD Valuation)
$56,277
Based on HCAD building value of $86,580.
Depth-Damage (Neighborhood)
$57,383
Based on neighborhood replacement cost.
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 Flooded
Flood Depth: 9.84 feet
Severity
Severe
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
12.3th percentile
Property Pollution Ranking
High
Higher pollution than 88% of Houston homes
Compares pollution within 2mi against 10,000 Houston properties. Lower percentiles = higher pollution.
Industrial Pollution Nearby (10 Years)
4.1 millionlbs
Extremely High
627.8x more than typical Houston property
≈ 205 dump trucks of chemicals within 2 miles
Air Pollution (10 Years)
4.09 millionlbs
Extremely High
847.8x more than typical Houston property
Includes fugitive emissions (leaks) and stack emissions (smokestacks).
Water Pollution (10 Years)
7 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)4,095,717 lbs4,088,233 lbs7,483 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)199,410 lbs198,416 lbs509 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 88% of Houston homes
Each bar's width represents the percentage of Houston homes in that pollution range. This property ranks in the 10-19th percentile.
📋
Top chemicals released near this property (past 10 years):
Ethylene, n-Hexane, Propylene, Methanol, Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)
View the full list of 48 chemicals below.
Chemicals Released (2014-2024, 10-Year Total)(48 chemicals)
#ChemicalCAS#Air (lbs/10yr)Water (lbs/10yr)Total (lbs/10yr)
1Ethylene74-85-11,138,404 lbs0 lbs1,138,404 lbs
2n-Hexane110-54-31,048,788 lbs170 lbs1,049,371 lbs
3Propylene115-07-1271,630 lbs0 lbs271,630 lbs
4Methanol67-56-1271,338 lbs0 lbs271,338 lbs
5Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-9250,209 lbs0 lbs250,209 lbs
6Hydrogen cyanide74-90-8213,734 lbs0 lbs213,734 lbs
7Xylene (mixed isomers)1330-20-7205,400 lbs129 lbs207,868 lbs
8Toluene108-88-3157,158 lbs43 lbs158,067 lbs
9Ammonia7664-41-7115,868 lbs0 lbs115,868 lbs
10Benzene71-43-286,351 lbs44 lbs86,950 lbs
11Vinyl acetate108-05-470,754 lbs0 lbs70,754 lbs
121,2,4-Trimethylbenzene95-63-643,913 lbs105 lbs44,281 lbs
13Ethylbenzene100-41-437,971 lbs61 lbs38,626 lbs
14Hydrogen sulfide7783-06-437,772 lbs0 lbs37,773 lbs
151,3-Butadiene106-99-029,382 lbs0 lbs29,383 lbs
16Naphthalene91-20-316,186 lbs21 lbs17,530 lbs
17Cyclohexane110-82-715,071 lbs0 lbs15,830 lbs
18Boron trifluoride7637-07-214,388 lbs0 lbs14,388 lbs
19Zinc compoundsN9826,334 lbs6,851 lbs13,185 lbs
20Cumene98-82-88,626 lbs10 lbs8,819 lbs
21Dimethylamine124-40-36,912 lbs0 lbs6,912 lbs
22Chlorine7782-50-56,651 lbs0 lbs6,651 lbs
23Acetaldehyde75-07-06,116 lbs0 lbs6,116 lbs
24Biphenyl92-52-44,816 lbs0 lbs5,138 lbs
25Phenol108-95-25,078 lbs0 lbs5,078 lbs
26Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-05,066 lbs0 lbs5,066 lbs
27Formaldehyde50-00-03,141 lbs0 lbs3,141 lbs
28Ethylene glycol107-21-12,254 lbs0 lbs2,254 lbs
29Acrylonitrile107-13-12,224 lbs0 lbs2,224 lbs
30Propylene oxide75-56-91,829 lbs0 lbs1,829 lbs
31o-Cresol95-48-71,585 lbs0 lbs1,585 lbs
32Formic acid64-18-61,406 lbs0 lbs1,406 lbs
33Maleic anhydride108-31-61,009 lbs0 lbs1,009 lbs
34Hydrogen fluoride7664-39-3229 lbs0 lbs299 lbs
35Diethanolamine111-42-2205 lbs0 lbs205 lbs
36Nickel7440-02-0120 lbs0 lbs120 lbs
37Diphenylamine122-39-4118 lbs0 lbs118 lbs
38Manganese7439-96-570 lbs0 lbs70 lbs
39Chromium7440-47-340 lbs0 lbs40 lbs
40Mercury7439-97-630 lbs0 lbs30 lbs
41Polycyclic aromatic compoundsN59024 lbs2 lbs26 lbs
42Lead And Lead CompoundsN4203 lbs22 lbs25 lbs
43Lead compoundsN4201 lbs22 lbs22 lbs
44Certain glycol ethersN23012 lbs0 lbs12 lbs
45Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N09011 lbs0 lbs11 lbs
46Methyl tert-butyl ether1634-04-42 lbs5 lbs10 lbs
47Benzo[g,h,i]perylene191-24-23 lbs0 lbs3 lbs
48Mercury And Mercury CompoundsN4581 lbs0 lbs1 lbs
📋
Top chemicals released near this property (2024 only):
Ethylene, Methanol, n-Hexane, Xylene (mixed isomers), Ammonia
View the full list of 39 chemicals reported within 2 miles for 2024.
Chemicals Released (2024 Only)(39 chemicals)
#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Ethylene74-85-1115,179 lbs0 lbs115,179 lbs
2Methanol67-56-115,808 lbs0 lbs15,808 lbs
3n-Hexane110-54-315,513 lbs0 lbs15,546 lbs
4Xylene (mixed isomers)1330-20-78,774 lbs15 lbs9,001 lbs
5Ammonia7664-41-77,948 lbs0 lbs7,948 lbs
6Toluene108-88-36,323 lbs5 lbs6,346 lbs
7Vinyl acetate108-05-45,850 lbs0 lbs5,850 lbs
81,2,4-Trimethylbenzene95-63-64,962 lbs0 lbs5,100 lbs
9Benzene71-43-24,302 lbs4 lbs4,319 lbs
10Phenol108-95-22,206 lbs0 lbs2,206 lbs
11Ethylbenzene100-41-41,688 lbs7 lbs1,728 lbs
121,3-Butadiene106-99-01,251 lbs0 lbs1,251 lbs
13Boron trifluoride7637-07-21,178 lbs0 lbs1,178 lbs
14Zinc compoundsN982678 lbs476 lbs1,154 lbs
15Propylene115-07-11,119 lbs0 lbs1,119 lbs
16Hydrogen sulfide7783-06-4923 lbs0 lbs923 lbs
17Dimethylamine124-40-3864 lbs0 lbs864 lbs
18Naphthalene91-20-3728 lbs1 lbs747 lbs
19Chlorine7782-50-5512 lbs0 lbs512 lbs
20Cumene98-82-8421 lbs0 lbs422 lbs
21Cyclohexane110-82-7355 lbs0 lbs373 lbs
22Formaldehyde50-00-0354 lbs0 lbs354 lbs
23Acrylonitrile107-13-1278 lbs0 lbs278 lbs
24Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-0265 lbs0 lbs265 lbs
25Propylene oxide75-56-9255 lbs0 lbs255 lbs
26Formic acid64-18-6189 lbs0 lbs189 lbs
27Maleic anhydride108-31-6132 lbs0 lbs132 lbs
28Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-996 lbs0 lbs96 lbs
29o-Cresol95-48-788 lbs0 lbs88 lbs
30Acetaldehyde75-07-045 lbs0 lbs45 lbs
31Manganese7439-96-530 lbs0 lbs30 lbs
32Ethylene glycol107-21-130 lbs0 lbs30 lbs
33Chromium7440-47-325 lbs0 lbs25 lbs
34Nickel7440-02-024 lbs0 lbs24 lbs
35Diphenylamine122-39-423 lbs0 lbs23 lbs
36Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0901 lbs0 lbs1 lbs
37Lead And Lead CompoundsN4201 lbs1 lbs1 lbs
38Certain glycol ethersN2301 lbs0 lbs1 lbs
39Polycyclic aromatic compoundsN5900 lbs0 lbs1 lbs
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