Data-driven insights for local properties

📊 Environmental Assessment Report

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.

🌊 Part 1: Flood Risk Analysis

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
118 POMEROY AVE PASADENA 77506
Building Size
1,004 sqft
Total structure area from HCAD building records.
Elevation
23.13 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
N/A
Data not available
Nearest Bayou Stage
N/A
No nearby bayou within monitoring range
Depth-Damage Estimate (HCAD Valuation)
$0
Property not flooded at current water level. No damage to calculate.
Depth-Damage Estimate (Neighborhood Comparison)
$0
Property not flooded at current water level. No damage to calculate.
Analysis Method
COG Bathtub 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: 13.13 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.

  • FEMA Zone X (minimal hazard) - flood insurance available at preferred rates.
  • Review the interactive flood simulator to understand how different rainfall events could affect this property.
  • Contact Harris County Flood Control District (HCFCD) for drainage projects and flood information.

🏭 Part 2: Industrial Pollution Exposure

Property Pollution Ranking
Very High
Higher pollution than 90% of Houston homes
This ranking compares pollution levels within 2 miles of this property against 10,000 randomly sampled Houston metro properties. Lower percentiles indicate higher pollution exposure.
Industrial Pollution Nearby (Last 10 Years)
8.01 million lbs
Extremely High
1228.3x more than typical Houston property
≈ 401 dump trucks of chemicals within 2 miles
Total chemical releases from all industrial facilities within a 2-mile radius over the past decade (2014–2024). Data from EPA's Toxic Release Inventory tracking air, water, and land discharges.
💨 Air Pollution (Last 10 Years)
7.97 million lbs
Extremely High
1652.8x more than typical Houston property
Chemicals released into the air from nearby facilities over 10 years. Includes both fugitive emissions (leaks, evaporation) and stack emissions (smokestacks, vents). May affect local air quality.
💧 Water Pollution (Last 10 Years)
43 thousand lbs
Extremely High
Most Houston properties have none nearby
Chemical discharges to surface water (bayous, streams, drainage) from industrial facilities within 2 miles over the past decade. May impact local waterways and drainage systems.

❤️ 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)8,013,550 lbs7,970,161 lbs43,389 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)692,843 lbs519,969 lbs676 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 90% 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 15% most polluted).

Top chemicals released near this property (past 10 years):

n-Hexane, Ethylene, Hydrogen cyanide, Ammonia, Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)

View the full list of 51 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (51 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1n-Hexane110-54-31,496,801 lbs179 lbs1,497,471 lbs
2Ethylene74-85-11,266,021 lbs0 lbs1,266,021 lbs
3Hydrogen cyanide74-90-81,032,286 lbs0 lbs1,032,286 lbs
4Ammonia7664-41-7848,961 lbs33,581 lbs882,542 lbs
5Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-9528,487 lbs0 lbs528,487 lbs
6Propylene115-07-1465,601 lbs0 lbs465,601 lbs
7Xylene (mixed isomers)1330-20-7452,739 lbs774 lbs455,953 lbs
8Toluene108-88-3343,524 lbs235 lbs344,736 lbs
9Methanol67-56-1330,140 lbs0 lbs330,140 lbs
10Benzene71-43-2293,311 lbs147 lbs294,042 lbs
11Hydrogen sulfide7783-06-4244,215 lbs0 lbs244,216 lbs
12n-Butyl alcohol71-36-3137,606 lbs0 lbs137,606 lbs
13Diethanolamine111-42-2102,160 lbs0 lbs102,160 lbs
14Vinyl acetate108-05-470,754 lbs0 lbs70,754 lbs
15Cyclohexane110-82-767,575 lbs0 lbs68,344 lbs
16Ethylbenzene100-41-467,024 lbs81 lbs67,744 lbs
171,3-Butadiene106-99-046,303 lbs0 lbs46,304 lbs
181,2,4-Trimethylbenzene95-63-635,720 lbs105 lbs36,317 lbs
19Propionaldehyde123-38-631,241 lbs0 lbs31,241 lbs
20Butyraldehyde123-72-822,150 lbs0 lbs22,150 lbs
21Naphthalene91-20-320,519 lbs24 lbs21,879 lbs
22Dicyclopentadiene77-73-614,013 lbs0 lbs14,013 lbs
23Cumene98-82-89,291 lbs10 lbs9,491 lbs
24Zinc compoundsN9822,208 lbs6,916 lbs9,124 lbs
25Dimethylamine124-40-36,912 lbs0 lbs6,912 lbs
26Acetaldehyde75-07-06,116 lbs0 lbs6,116 lbs
27Ethylene glycol107-21-15,553 lbs0 lbs5,562 lbs
28Biphenyl92-52-45,161 lbs0 lbs5,502 lbs
29Isobutyraldehyde78-84-24,080 lbs0 lbs4,080 lbs
30Polycyclic aromatic compoundsN5902,909 lbs117 lbs3,228 lbs
31Formaldehyde50-00-02,284 lbs0 lbs2,284 lbs
32Acrylonitrile107-13-12,224 lbs0 lbs2,224 lbs
33Phenol108-95-2815 lbs1,155 lbs1,970 lbs
34Propylene oxide75-56-91,829 lbs0 lbs1,829 lbs
35Formic acid64-18-61,406 lbs0 lbs1,406 lbs
36Styrene100-42-51,198 lbs0 lbs1,198 lbs
37Hydrogen fluoride7664-39-3229 lbs0 lbs299 lbs
38Chlorine7782-50-5273 lbs0 lbs273 lbs
39Nickel7440-02-0120 lbs0 lbs120 lbs
40Mercury7439-97-6106 lbs0 lbs106 lbs
41Certain glycol ethersN23092 lbs0 lbs92 lbs
42Manganese7439-96-570 lbs0 lbs70 lbs
43Chromium7440-47-340 lbs0 lbs40 lbs
44C.I. Food Red 1581-88-940 lbs0 lbs40 lbs
45Anthracene120-12-731 lbs0 lbs31 lbs
46Lead compoundsN4204 lbs27 lbs30 lbs
47Lead And Lead CompoundsN4203 lbs27 lbs30 lbs
48Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N09011 lbs0 lbs11 lbs
49Benzo[g,h,i]perylene191-24-23 lbs7 lbs11 lbs
50Methyl tert-butyl ether1634-04-42 lbs5 lbs10 lbs
51Mercury And Mercury CompoundsN4581 lbs0 lbs1 lbs

Top chemicals released near this property (2024 only):

Ammonia, Ethylene, Diethanolamine, Hydrogen cyanide, n-Hexane

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)
1Ammonia7664-41-791,475 lbs93 lbs127,288 lbs
2Ethylene74-85-1124,054 lbs0 lbs124,054 lbs
3Diethanolamine111-42-210,092 lbs0 lbs85,621 lbs
4Hydrogen cyanide74-90-873,728 lbs0 lbs73,728 lbs
5n-Hexane110-54-354,080 lbs0 lbs54,190 lbs
6Xylene (mixed isomers)1330-20-738,390 lbs33 lbs38,806 lbs
7Zinc compoundsN982355 lbs481 lbs28,303 lbs
8Toluene108-88-324,676 lbs13 lbs26,690 lbs
9Methanol67-56-115,730 lbs0 lbs20,533 lbs
10Benzene71-43-220,356 lbs6 lbs20,492 lbs
11Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-917,341 lbs0 lbs17,341 lbs
12Hydrogen sulfide7783-06-414,345 lbs0 lbs14,345 lbs
13Propylene115-07-110,544 lbs0 lbs10,544 lbs
14Ethylene glycol107-21-1529 lbs0 lbs7,568 lbs
15Vanadium compoundsN7700 lbs0 lbs6,689 lbs
16Vinyl acetate108-05-45,850 lbs0 lbs5,852 lbs
17Ethylbenzene100-41-44,534 lbs15 lbs4,625 lbs
18Cyclohexane110-82-74,403 lbs0 lbs4,421 lbs
191,2,4-Trimethylbenzene95-63-63,481 lbs0 lbs3,693 lbs
20Phenol108-95-2255 lbs8 lbs3,101 lbs
21Formaldehyde50-00-0255 lbs0 lbs2,348 lbs
22Formic acid64-18-6189 lbs0 lbs1,968 lbs
23Naphthalene91-20-31,414 lbs1 lbs1,500 lbs
241,3-Butadiene106-99-01,251 lbs0 lbs1,251 lbs
25Lead And Lead CompoundsN4201 lbs6 lbs1,179 lbs
26Certain glycol ethersN23011 lbs0 lbs1,122 lbs
27Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0901 lbs0 lbs1,095 lbs
28Nickel And Nickel CompoundsN4950 lbs0 lbs915 lbs
29Dimethylamine124-40-3864 lbs0 lbs884 lbs
30Cumene98-82-8580 lbs0 lbs586 lbs
31Lead compoundsN4200 lbs0 lbs430 lbs
32Perfluorooctanoic acid335-67-10 lbs0 lbs402 lbs
33Polycyclic aromatic compoundsN590353 lbs15 lbs369 lbs
34Acrylonitrile107-13-1278 lbs0 lbs294 lbs
35Propylene oxide75-56-9255 lbs0 lbs255 lbs
36Styrene100-42-5110 lbs0 lbs110 lbs
37Mercury compoundsN4580 lbs0 lbs46 lbs
38Acetaldehyde75-07-045 lbs0 lbs45 lbs
39Biphenyl92-52-433 lbs0 lbs33 lbs
40Manganese7439-96-530 lbs0 lbs30 lbs
41Chlorine7782-50-525 lbs0 lbs25 lbs
42Chromium7440-47-325 lbs0 lbs25 lbs
43Nickel7440-02-024 lbs0 lbs24 lbs
44Lead7439-92-10 lbs0 lbs8 lbs
45Mercury7439-97-67 lbs0 lbs7 lbs
46Benzo[g,h,i]perylene191-24-20 lbs5 lbs5 lbs
47Vanadium (except when contained in an alloy)7440-62-20 lbs0 lbs3 lbs

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