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
3942 N MCCARTY ST HOUSTON 77013
Elevation
41.19 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: 31.19 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 77% 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)
575 thousand lbs
Very High
88.1x more than typical Houston property
≈ 29 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)
567 thousand lbs
Extremely High
117.6x 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)
7 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)574,780 lbs567,327 lbs7,453 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)994,103 lbs71,187 lbs1,516 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 77% 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, Xylene (mixed isomers), n-Butyl alcohol, Zinc compounds, Phenol

View the full list of 30 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (30 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Ammonia7664-41-7307,674 lbs0 lbs307,674 lbs
2Xylene (mixed isomers)1330-20-7142,470 lbs0 lbs142,470 lbs
3n-Butyl alcohol71-36-333,617 lbs0 lbs33,617 lbs
4Zinc compoundsN98226,707 lbs6,629 lbs33,336 lbs
5Phenol108-95-224,642 lbs0 lbs24,642 lbs
6Ethylbenzene100-41-416,665 lbs0 lbs16,665 lbs
7Styrene100-42-55,373 lbs0 lbs5,373 lbs
8Methyl isobutyl ketone108-10-13,355 lbs0 lbs3,355 lbs
9Methanol67-56-12,781 lbs0 lbs2,781 lbs
10Toluene108-88-31,015 lbs0 lbs2,188 lbs
11Formaldehyde50-00-01,893 lbs0 lbs1,893 lbs
12Manganese7439-96-5166 lbs334 lbs501 lbs
13Naphthalene91-20-3229 lbs0 lbs229 lbs
14Manganese compoundsN45018 lbs208 lbs226 lbs
15Zinc (fume or dust)7440-66-6192 lbs0 lbs192 lbs
16Chromium compounds (except for chromite ore mined in the Transvaal Region)N090141 lbs15 lbs156 lbs
171,2,4-Trimethylbenzene95-63-6125 lbs0 lbs125 lbs
18DiisocyanatesN120101 lbs4 lbs105 lbs
19Lead compoundsN42078 lbs22 lbs100 lbs
20Aluminum oxide (fibrous forms)1344-28-11 lbs98 lbs99 lbs
21Barium compounds (except for barium sulfate (CAS No. 7727-43-7))N0400 lbs67 lbs67 lbs
22Nickel7440-02-03 lbs38 lbs41 lbs
23Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N09032 lbs1 lbs33 lbs
24Lead7439-92-15 lbs21 lbs26 lbs
25Aluminum (fume or dust)7429-90-524 lbs0 lbs24 lbs
26Barium And Barium CompoundsN0400 lbs16 lbs16 lbs
27Nitrate compounds (water dissociable; reportable only when in aqueous solution)N51115 lbs0 lbs15 lbs
28Lead And Lead CompoundsN4203 lbs1 lbs3 lbs
29Molybdenum trioxide1313-27-51 lbs0 lbs1 lbs
30Dioxin and dioxin-like compoundsN1501 lbs0 lbs1 lbs

Top chemicals released near this property (2024 only):

Zinc compounds, Ammonia, Manganese, Xylene (mixed isomers), Styrene

View the full list of 11 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (11 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Zinc compoundsN9823,493 lbs1,262 lbs900,596 lbs
2Ammonia7664-41-749,429 lbs0 lbs52,907 lbs
3Manganese7439-96-50 lbs41 lbs19,987 lbs
4Xylene (mixed isomers)1330-20-716,019 lbs0 lbs16,019 lbs
5Styrene100-42-52,239 lbs0 lbs2,239 lbs
6Nickel7440-02-00 lbs31 lbs2,080 lbs
7Manganese compoundsN4502 lbs116 lbs118 lbs
8Lead compoundsN4205 lbs3 lbs60 lbs
9Barium compounds (except for barium sulfate (CAS No. 7727-43-7))N0400 lbs19 lbs53 lbs
10Aluminum oxide (fibrous forms)1344-28-10 lbs42 lbs42 lbs
11Lead7439-92-10 lbs3 lbs3 lbs

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