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
917 E SHAW PASADENA 77506
Elevation
23.65 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
Vacant lot (no building data). No structure to calculate damage for.
Depth-Damage Estimate (Neighborhood Comparison)
$0
Vacant lot (no building data). No structure to calculate damage for.
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: 13.65 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
High
Higher pollution than 89% 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)
5.51 million lbs
Extremely High
845.2x more than typical Houston property
≈ 276 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)
5.47 million lbs
Extremely High
1134.9x 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)
41 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)5,514,144 lbs5,473,014 lbs41,130 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)410,773 lbs308,763 lbs607 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 89% 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):

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

View the full list of 55 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (55 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Ethylene74-85-11,138,404 lbs0 lbs1,138,404 lbs
2n-Hexane110-54-31,116,413 lbs170 lbs1,116,996 lbs
3Ammonia7664-41-7828,361 lbs33,581 lbs861,942 lbs
4Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-9528,487 lbs0 lbs528,487 lbs
5Methanol67-56-1328,409 lbs0 lbs328,409 lbs
6Propylene115-07-1271,630 lbs0 lbs271,630 lbs
7Xylene (mixed isomers)1330-20-7226,030 lbs129 lbs228,498 lbs
8Hydrogen cyanide74-90-8213,734 lbs0 lbs213,734 lbs
9Toluene108-88-3173,810 lbs43 lbs174,719 lbs
10n-Butyl alcohol71-36-3137,606 lbs0 lbs137,606 lbs
11Benzene71-43-2103,670 lbs44 lbs104,269 lbs
12Vinyl acetate108-05-470,754 lbs0 lbs70,754 lbs
131,2,4-Trimethylbenzene95-63-644,647 lbs105 lbs45,159 lbs
14Ethylbenzene100-41-438,818 lbs61 lbs39,473 lbs
15Hydrogen sulfide7783-06-437,772 lbs0 lbs37,773 lbs
16Propionaldehyde123-38-631,241 lbs0 lbs31,241 lbs
171,3-Butadiene106-99-029,382 lbs0 lbs29,383 lbs
18Butyraldehyde123-72-822,150 lbs0 lbs22,150 lbs
19Naphthalene91-20-316,265 lbs21 lbs17,609 lbs
20Cyclohexane110-82-715,074 lbs0 lbs15,834 lbs
21Boron trifluoride7637-07-214,388 lbs0 lbs14,388 lbs
22Dicyclopentadiene77-73-614,013 lbs0 lbs14,013 lbs
23Zinc compoundsN9826,334 lbs6,916 lbs13,250 lbs
24Cumene98-82-88,710 lbs10 lbs8,903 lbs
25Dimethylamine124-40-36,912 lbs0 lbs6,912 lbs
26Chlorine7782-50-56,656 lbs0 lbs6,656 lbs
27Acetaldehyde75-07-06,116 lbs0 lbs6,116 lbs
28Ethylene glycol107-21-15,554 lbs0 lbs5,554 lbs
29Biphenyl92-52-44,816 lbs0 lbs5,138 lbs
30Phenol108-95-25,078 lbs0 lbs5,078 lbs
31Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-05,066 lbs0 lbs5,066 lbs
32Isobutyraldehyde78-84-24,080 lbs0 lbs4,080 lbs
33Formaldehyde50-00-03,141 lbs0 lbs3,141 lbs
34Acrylonitrile107-13-12,224 lbs0 lbs2,224 lbs
35Propylene oxide75-56-91,829 lbs0 lbs1,829 lbs
36o-Cresol95-48-71,585 lbs0 lbs1,585 lbs
37Formic acid64-18-61,406 lbs0 lbs1,406 lbs
38Maleic anhydride108-31-61,009 lbs0 lbs1,009 lbs
39Diethanolamine111-42-2600 lbs0 lbs600 lbs
40Hydrogen fluoride7664-39-3229 lbs0 lbs299 lbs
41Nickel7440-02-0120 lbs0 lbs120 lbs
42Diphenylamine122-39-4118 lbs0 lbs118 lbs
43Certain glycol ethersN23092 lbs0 lbs92 lbs
44Manganese7439-96-570 lbs0 lbs70 lbs
45Styrene100-42-556 lbs0 lbs56 lbs
46C.I. Food Red 1581-88-940 lbs0 lbs40 lbs
47Chromium7440-47-340 lbs0 lbs40 lbs
48Mercury7439-97-630 lbs0 lbs30 lbs
49Polycyclic aromatic compoundsN59024 lbs2 lbs26 lbs
50Lead And Lead CompoundsN4203 lbs22 lbs25 lbs
51Lead compoundsN4202 lbs22 lbs23 lbs
52Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N09011 lbs0 lbs11 lbs
53Methyl tert-butyl ether1634-04-42 lbs5 lbs10 lbs
54Benzo[g,h,i]perylene191-24-23 lbs0 lbs3 lbs
55Mercury And Mercury CompoundsN4581 lbs0 lbs1 lbs

Top chemicals released near this property (2024 only):

Ammonia, Ethylene, Methanol, Zinc compounds, n-Hexane

View the full list of 45 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (45 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Ammonia7664-41-789,692 lbs93 lbs117,230 lbs
2Ethylene74-85-1115,179 lbs0 lbs115,179 lbs
3Methanol67-56-115,808 lbs0 lbs42,599 lbs
4Zinc compoundsN982678 lbs481 lbs28,626 lbs
5n-Hexane110-54-319,091 lbs0 lbs19,130 lbs
6Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-917,341 lbs0 lbs17,341 lbs
7Xylene (mixed isomers)1330-20-712,086 lbs15 lbs12,513 lbs
8Toluene108-88-38,816 lbs5 lbs10,715 lbs
9Vanadium compoundsN7700 lbs0 lbs6,689 lbs
10Vinyl acetate108-05-45,850 lbs0 lbs5,852 lbs
111,2,4-Trimethylbenzene95-63-65,045 lbs0 lbs5,706 lbs
12Benzene71-43-25,580 lbs4 lbs5,677 lbs
13Phenol108-95-22,206 lbs0 lbs3,579 lbs
14Formaldehyde50-00-0354 lbs0 lbs3,326 lbs
15Formic acid64-18-6189 lbs0 lbs1,968 lbs
16Ethylbenzene100-41-41,757 lbs7 lbs1,802 lbs
171,3-Butadiene106-99-01,251 lbs0 lbs1,251 lbs
18Boron trifluoride7637-07-21,178 lbs0 lbs1,178 lbs
19o-Cresol95-48-788 lbs0 lbs1,122 lbs
20Propylene115-07-11,119 lbs0 lbs1,119 lbs
21Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0901 lbs0 lbs1,095 lbs
22Hydrogen sulfide7783-06-4923 lbs0 lbs923 lbs
23Dimethylamine124-40-3864 lbs0 lbs884 lbs
24Naphthalene91-20-3737 lbs1 lbs760 lbs
25Ethylene glycol107-21-1530 lbs0 lbs550 lbs
26Cumene98-82-8430 lbs0 lbs535 lbs
27Chlorine7782-50-5512 lbs0 lbs512 lbs
28Lead compoundsN4200 lbs0 lbs430 lbs
29Perfluorooctanoic acid335-67-10 lbs0 lbs402 lbs
30Lead And Lead CompoundsN4201 lbs1 lbs391 lbs
31Cyclohexane110-82-7355 lbs0 lbs373 lbs
32Acrylonitrile107-13-1278 lbs0 lbs294 lbs
33Maleic anhydride108-31-6132 lbs0 lbs281 lbs
34Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-0265 lbs0 lbs265 lbs
35Propylene oxide75-56-9255 lbs0 lbs255 lbs
36Mercury compoundsN4580 lbs0 lbs46 lbs
37Acetaldehyde75-07-045 lbs0 lbs45 lbs
38Manganese7439-96-530 lbs0 lbs30 lbs
39Chromium7440-47-325 lbs0 lbs25 lbs
40Nickel7440-02-024 lbs0 lbs24 lbs
41Diphenylamine122-39-423 lbs0 lbs23 lbs
42Certain glycol ethersN23011 lbs0 lbs11 lbs
43Diethanolamine111-42-210 lbs0 lbs10 lbs
44Styrene100-42-57 lbs0 lbs7 lbs
45Polycyclic aromatic compoundsN5900 lbs0 lbs1 lbs

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