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
8202 PLUMMER ST HOUSTON 77029
Elevation
34.83 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: 24.83 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 79% 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)
697 thousand lbs
Extremely High
106.9x more than typical Houston property
≈ 35 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)
692 thousand lbs
Extremely High
143.5x 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)
5 thousand lbs
Very 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)697,126 lbs692,206 lbs4,921 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)173,282 lbs99,854 lbs525 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 79% 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, Zinc compounds, n-Hexane, Toluene, Xylene (mixed isomers)

View the full list of 33 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (33 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Ammonia7664-41-7295,214 lbs0 lbs295,214 lbs
2Zinc compoundsN982200,837 lbs4,584 lbs205,421 lbs
3n-Hexane110-54-3125,432 lbs0 lbs125,432 lbs
4Toluene108-88-323,465 lbs0 lbs23,465 lbs
5Xylene (mixed isomers)1330-20-711,930 lbs0 lbs11,930 lbs
61,2,4-Trimethylbenzene95-63-68,648 lbs0 lbs8,648 lbs
7Hydrogen sulfide7783-06-46,912 lbs0 lbs6,912 lbs
8Manganese7439-96-54,730 lbs108 lbs4,839 lbs
9Lead compoundsN4203,065 lbs22 lbs3,087 lbs
10Cyclohexane110-82-72,389 lbs0 lbs2,389 lbs
11Copper compoundsN1002,022 lbs1 lbs2,023 lbs
12Polycyclic aromatic compoundsN5901,893 lbs2 lbs1,902 lbs
13Lead And Lead CompoundsN4201,553 lbs1 lbs1,554 lbs
14Ethylene glycol107-21-1856 lbs0 lbs856 lbs
15Propylene115-07-1810 lbs0 lbs810 lbs
16Lead7439-92-1373 lbs99 lbs472 lbs
17Certain glycol ethersN230402 lbs0 lbs402 lbs
18Chloroacetic acid79-11-8330 lbs0 lbs330 lbs
19Methyl methacrylate80-62-6265 lbs0 lbs265 lbs
20Methanol67-56-1255 lbs0 lbs255 lbs
21Benzo[g,h,i]perylene191-24-2236 lbs0 lbs236 lbs
22Ethylbenzene100-41-4217 lbs0 lbs218 lbs
23Styrene100-42-5162 lbs0 lbs163 lbs
24Naphthalene91-20-3117 lbs0 lbs118 lbs
25Barium compounds (except for barium sulfate (CAS No. 7727-43-7))N0400 lbs67 lbs67 lbs
26Nickel7440-02-036 lbs4 lbs39 lbs
27Nitric acid7697-37-230 lbs0 lbs30 lbs
28Barium And Barium CompoundsN0400 lbs16 lbs16 lbs
29Chromium7440-47-33 lbs12 lbs15 lbs
30Mercury7439-97-612 lbs0 lbs12 lbs
31Copper And Copper CompoundsN10010 lbs0 lbs10 lbs
32Copper7440-50-80 lbs6 lbs6 lbs
33Dioxin and dioxin-like compoundsN1501 lbs0 lbs1 lbs

Top chemicals released near this property (2024 only):

Zinc compounds, Ammonia, n-Hexane, Xylene (mixed isomers), Toluene

View the full list of 14 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (14 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Zinc compoundsN98212,507 lbs500 lbs82,310 lbs
2Ammonia7664-41-749,429 lbs0 lbs52,907 lbs
3n-Hexane110-54-312,290 lbs0 lbs12,290 lbs
4Xylene (mixed isomers)1330-20-711,930 lbs0 lbs11,930 lbs
5Toluene108-88-311,886 lbs0 lbs11,886 lbs
61,2,4-Trimethylbenzene95-63-61,210 lbs0 lbs1,210 lbs
7Lead7439-92-1243 lbs3 lbs250 lbs
8Polycyclic aromatic compoundsN590152 lbs0 lbs180 lbs
9Lead And Lead CompoundsN420161 lbs0 lbs162 lbs
10Lead compoundsN4205 lbs3 lbs60 lbs
11Barium compounds (except for barium sulfate (CAS No. 7727-43-7))N0400 lbs19 lbs53 lbs
12Benzo[g,h,i]perylene191-24-221 lbs0 lbs24 lbs
13Methyl methacrylate80-62-610 lbs0 lbs10 lbs
14Chloroacetic acid79-11-810 lbs0 lbs10 lbs

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