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 COLGATE ST HOUSTON 77061
Elevation
17.31 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: 7.31 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 81% 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)
956 thousand lbs
Extremely High
146.5x more than typical Houston property
≈ 48 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)
913 thousand lbs
Extremely High
189.3x 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)955,837 lbs912,730 lbs43,106 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)79,400 lbs47,567 lbs14,559 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 81% of Houston homes
Each bar's width represents the percentage of Houston homes in that pollution range. This property ranks in the 20-29th percentile (top 25% most polluted).

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

Ammonia, Methyl tert-butyl ether, 1,3-Butadiene, Methanol, N,N-Dimethylformamide

View the full list of 14 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (14 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Ammonia7664-41-7279,379 lbs3,674 lbs283,053 lbs
2Methyl tert-butyl ether1634-04-4267,534 lbs0 lbs267,534 lbs
31,3-Butadiene106-99-0255,578 lbs0 lbs255,578 lbs
4Methanol67-56-155,467 lbs39,325 lbs94,793 lbs
5N,N-Dimethylformamide68-12-222,161 lbs88 lbs22,249 lbs
6tert-Butyl alcohol75-65-015,263 lbs0 lbs15,263 lbs
7Propylene115-07-114,205 lbs0 lbs14,205 lbs
8Ethylene74-85-12,621 lbs0 lbs2,621 lbs
9Chromium compounds (except for chromite ore mined in the Transvaal Region)N090321 lbs0 lbs321 lbs
10Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N090165 lbs0 lbs165 lbs
11Boron trifluoride7637-07-236 lbs0 lbs36 lbs
12Zinc compoundsN9820 lbs16 lbs16 lbs
13Chromium7440-47-30 lbs2 lbs2 lbs
14Nickel7440-02-00 lbs1 lbs1 lbs

Top chemicals released near this property (2024 only):

Methyl tert-butyl ether, Methanol, 1,3-Butadiene, Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region), N,N-Dimethylformamide

View the full list of 13 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (13 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Methyl tert-butyl ether1634-04-418,336 lbs0 lbs31,624 lbs
2Methanol67-56-16,850 lbs14,541 lbs21,992 lbs
31,3-Butadiene106-99-018,236 lbs0 lbs18,236 lbs
4Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N09027 lbs0 lbs2,249 lbs
5N,N-Dimethylformamide68-12-21,641 lbs0 lbs1,842 lbs
6Propylene115-07-11,091 lbs0 lbs1,091 lbs
7tert-Butyl alcohol75-65-01,021 lbs0 lbs1,021 lbs
8Lead And Lead CompoundsN4200 lbs0 lbs960 lbs
9Ethylene74-85-1364 lbs0 lbs364 lbs
10Zinc compoundsN9820 lbs16 lbs16 lbs
11Chromium7440-47-30 lbs2 lbs2 lbs
12Boron trifluoride7637-07-21 lbs0 lbs1 lbs
13Nickel7440-02-00 lbs1 lbs1 lbs

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