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
0 COULSON HOUSTON 77015
Elevation
14.62 ft
Height above sea level from USGS data.
FEMA Flood Zone
AE
High Risk - 1% annual chance with established base flood elevation
Overall Risk
Moderate
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
Moderate
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: 4.62 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.

  • This property is in a high-risk flood zone. Flood insurance is required for mortgages.
  • Consider flood mitigation measures like elevated utilities and flood vents.
  • 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 88% 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)
4.36 million lbs
Extremely High
668.6x more than typical Houston property
≈ 218 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)
4.33 million lbs
Extremely High
897.2x 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)
35 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)4,361,870 lbs4,326,810 lbs35,060 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)283,526 lbs217,801 lbs175 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 15% most polluted).

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

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

View the full list of 52 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (52 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Ammonia7664-41-7828,361 lbs33,581 lbs861,942 lbs
2n-Hexane110-54-3764,651 lbs9 lbs765,143 lbs
3Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-9528,391 lbs0 lbs528,391 lbs
4Methanol67-56-1332,943 lbs0 lbs332,943 lbs
5Propylene115-07-1272,238 lbs0 lbs272,238 lbs
6Ethylene74-85-1243,909 lbs0 lbs243,909 lbs
71,3-Butadiene106-99-0232,089 lbs0 lbs232,089 lbs
8Xylene (mixed isomers)1330-20-7216,879 lbs114 lbs219,394 lbs
9Hydrogen cyanide74-90-8213,734 lbs0 lbs213,734 lbs
10n-Butyl alcohol71-36-3137,606 lbs0 lbs137,606 lbs
11Toluene108-88-3132,669 lbs33 lbs133,646 lbs
12Benzene71-43-296,422 lbs29 lbs97,023 lbs
13Vinyl acetate108-05-470,754 lbs0 lbs70,754 lbs
14Hydrogen sulfide7783-06-437,772 lbs0 lbs37,773 lbs
15Ethylbenzene100-41-434,150 lbs55 lbs34,834 lbs
16Propionaldehyde123-38-631,241 lbs0 lbs31,241 lbs
17Cyclohexane110-82-728,736 lbs0 lbs29,496 lbs
18Butyraldehyde123-72-822,150 lbs0 lbs22,150 lbs
19Naphthalene91-20-315,465 lbs0 lbs16,792 lbs
20Dicyclopentadiene77-73-614,013 lbs0 lbs14,013 lbs
21Isoprene78-79-513,272 lbs0 lbs13,272 lbs
221,2,4-Trimethylbenzene95-63-610,790 lbs0 lbs11,265 lbs
23Cumene98-82-87,366 lbs0 lbs7,553 lbs
24Dimethylamine124-40-36,912 lbs0 lbs6,912 lbs
25Acetaldehyde75-07-06,116 lbs0 lbs6,116 lbs
26Ethylene glycol107-21-15,553 lbs0 lbs5,553 lbs
27Biphenyl92-52-44,816 lbs0 lbs5,138 lbs
28Isobutyraldehyde78-84-24,080 lbs0 lbs4,080 lbs
29Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-03,066 lbs0 lbs3,066 lbs
30Zinc compoundsN982219 lbs1,181 lbs2,891 lbs
31Formaldehyde50-00-02,284 lbs0 lbs2,284 lbs
32Acrylonitrile107-13-12,224 lbs0 lbs2,224 lbs
33Propylene oxide75-56-91,829 lbs0 lbs1,829 lbs
34Formic acid64-18-61,406 lbs0 lbs1,406 lbs
35Phenol108-95-2815 lbs0 lbs815 lbs
36Diethanolamine111-42-2600 lbs0 lbs600 lbs
37Hydrogen fluoride7664-39-3229 lbs0 lbs299 lbs
38Chlorine7782-50-5273 lbs0 lbs273 lbs
39Mercury compoundsN458165 lbs1 lbs166 lbs
40Nickel7440-02-0120 lbs0 lbs120 lbs
41Mercury And Mercury CompoundsN45897 lbs0 lbs97 lbs
42Certain glycol ethersN23080 lbs0 lbs80 lbs
43Manganese7439-96-570 lbs0 lbs70 lbs
44Lead compoundsN4208 lbs51 lbs59 lbs
45Styrene100-42-556 lbs0 lbs56 lbs
46Polycyclic aromatic compoundsN59045 lbs0 lbs45 lbs
47C.I. Food Red 1581-88-940 lbs0 lbs40 lbs
48Chromium7440-47-340 lbs0 lbs40 lbs
49Anthracene120-12-731 lbs0 lbs31 lbs
50Mercury7439-97-630 lbs0 lbs30 lbs
51Lead And Lead CompoundsN4202 lbs6 lbs8 lbs
52Benzo[g,h,i]perylene191-24-23 lbs0 lbs3 lbs

Top chemicals released near this property (2024 only):

Ammonia, 1,3-Butadiene, Methanol, Zinc compounds, Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)

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)
1Ammonia7664-41-789,692 lbs93 lbs117,230 lbs
21,3-Butadiene106-99-033,331 lbs0 lbs33,331 lbs
3Methanol67-56-115,730 lbs0 lbs20,533 lbs
4Zinc compoundsN98222 lbs32 lbs19,978 lbs
5Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-917,245 lbs0 lbs17,245 lbs
6Ethylene74-85-114,987 lbs0 lbs14,987 lbs
7n-Hexane110-54-39,786 lbs0 lbs9,890 lbs
8Xylene (mixed isomers)1330-20-78,691 lbs18 lbs9,088 lbs
9Vanadium compoundsN7700 lbs0 lbs6,689 lbs
10Toluene108-88-36,234 lbs10 lbs6,382 lbs
11Vinyl acetate108-05-45,850 lbs0 lbs5,852 lbs
12Benzene71-43-24,995 lbs4 lbs5,113 lbs
13Isoprene78-79-52,371 lbs0 lbs2,371 lbs
14Formaldehyde50-00-0255 lbs0 lbs2,348 lbs
15Formic acid64-18-6189 lbs0 lbs1,968 lbs
16Ethylbenzene100-41-41,455 lbs12 lbs1,542 lbs
171,2,4-Trimethylbenzene95-63-61,159 lbs0 lbs1,371 lbs
18Propylene115-07-11,202 lbs0 lbs1,202 lbs
19Lead And Lead CompoundsN4200 lbs5 lbs1,192 lbs
20Hydrogen sulfide7783-06-4923 lbs0 lbs923 lbs
21Dimethylamine124-40-3864 lbs0 lbs884 lbs
22Naphthalene91-20-3616 lbs0 lbs644 lbs
23Ethylene glycol107-21-1529 lbs0 lbs549 lbs
24Cyclohexane110-82-7417 lbs0 lbs435 lbs
25Lead compoundsN4200 lbs0 lbs430 lbs
26Acrylonitrile107-13-1278 lbs0 lbs294 lbs
27Cumene98-82-8272 lbs0 lbs278 lbs
28Phenol108-95-2255 lbs0 lbs276 lbs
29Propylene oxide75-56-9255 lbs0 lbs255 lbs
30Mercury compoundsN4580 lbs0 lbs46 lbs
31Acetaldehyde75-07-045 lbs0 lbs45 lbs
32Manganese7439-96-530 lbs0 lbs30 lbs
33Chlorine7782-50-525 lbs0 lbs25 lbs
34Chromium7440-47-325 lbs0 lbs25 lbs
35Nickel7440-02-024 lbs0 lbs24 lbs
36Mercury And Mercury CompoundsN45821 lbs0 lbs23 lbs
37Certain glycol ethersN23010 lbs0 lbs10 lbs
38Diethanolamine111-42-210 lbs0 lbs10 lbs
39Styrene100-42-57 lbs0 lbs7 lbs

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