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
1502 DEMAREE LN HOUSTON 77029
Building Size
1,056 sqft
Total structure area from HCAD building records.
Elevation
35.25 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: 25.25 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
Moderate
Higher pollution than 73% 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)
364 thousand lbs
Very High
55.8x more than typical Houston property
≈ 18 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)
358 thousand lbs
Very High
74.3x 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)
6 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)363,969 lbs358,136 lbs5,833 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)139,924 lbs55,590 lbs994 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 73% 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, Hydrogen sulfide, Styrene, Xylene (mixed isomers)

View the full list of 35 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (35 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Ammonia7664-41-7307,674 lbs0 lbs307,674 lbs
2Zinc compoundsN98224,241 lbs5,003 lbs29,244 lbs
3Hydrogen sulfide7783-06-46,912 lbs0 lbs6,912 lbs
4Styrene100-42-55,535 lbs0 lbs5,536 lbs
5Xylene (mixed isomers)1330-20-73,210 lbs0 lbs3,210 lbs
6Methanol67-56-13,036 lbs0 lbs3,036 lbs
7Polycyclic aromatic compoundsN5901,893 lbs2 lbs1,902 lbs
8Phenol108-95-21,390 lbs0 lbs1,390 lbs
9Ethylbenzene100-41-4917 lbs0 lbs918 lbs
10Propylene115-07-1810 lbs0 lbs810 lbs
11Manganese7439-96-5166 lbs336 lbs503 lbs
12Certain glycol ethersN230402 lbs0 lbs402 lbs
13Naphthalene91-20-3346 lbs0 lbs347 lbs
14Chloroacetic acid79-11-8330 lbs0 lbs330 lbs
15Methyl methacrylate80-62-6265 lbs0 lbs265 lbs
16Lead7439-92-1229 lbs22 lbs250 lbs
17Benzo[g,h,i]perylene191-24-2236 lbs0 lbs236 lbs
18Manganese compoundsN45018 lbs208 lbs226 lbs
19Chromium compounds (except for chromite ore mined in the Transvaal Region)N090141 lbs15 lbs156 lbs
201,2,4-Trimethylbenzene95-63-6125 lbs0 lbs125 lbs
21DiisocyanatesN120101 lbs4 lbs105 lbs
22Aluminum oxide (fibrous forms)1344-28-11 lbs98 lbs99 lbs
23Barium compounds (except for barium sulfate (CAS No. 7727-43-7))N0400 lbs67 lbs67 lbs
24Lead compoundsN42038 lbs22 lbs60 lbs
25Nickel7440-02-03 lbs38 lbs41 lbs
26Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N09032 lbs1 lbs33 lbs
27Nitric acid7697-37-230 lbs0 lbs30 lbs
28Aluminum (fume or dust)7429-90-524 lbs0 lbs24 lbs
29Barium And Barium CompoundsN0400 lbs16 lbs16 lbs
30Nitrate compounds (water dissociable; reportable only when in aqueous solution)N51115 lbs0 lbs15 lbs
31Mercury7439-97-612 lbs0 lbs12 lbs
32Lead And Lead CompoundsN4203 lbs1 lbs3 lbs
33Copper compoundsN1001 lbs1 lbs2 lbs
34Molybdenum trioxide1313-27-51 lbs0 lbs1 lbs
35Dioxin and dioxin-like compoundsN1501 lbs0 lbs1 lbs

Top chemicals released near this property (2024 only):

Zinc compounds, Ammonia, Manganese, Styrene, Nickel

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 compoundsN9823,493 lbs739 lbs61,978 lbs
2Ammonia7664-41-749,429 lbs0 lbs52,907 lbs
3Manganese7439-96-50 lbs41 lbs19,987 lbs
4Styrene100-42-52,239 lbs0 lbs2,239 lbs
5Nickel7440-02-00 lbs31 lbs2,080 lbs
6Lead7439-92-1228 lbs3 lbs236 lbs
7Polycyclic aromatic compoundsN590152 lbs0 lbs180 lbs
8Manganese compoundsN4502 lbs116 lbs118 lbs
9Lead compoundsN4205 lbs3 lbs60 lbs
10Barium compounds (except for barium sulfate (CAS No. 7727-43-7))N0400 lbs19 lbs53 lbs
11Aluminum oxide (fibrous forms)1344-28-10 lbs42 lbs42 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

Explore More Properties