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
12902 JOLIET ST HOUSTON 77015
Building Size
3,050 sqft
Total structure area from HCAD building records.
Elevation
28.13 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: 18.13 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 71% 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)
266 thousand lbs
High
40.8x more than typical Houston property
≈ 13 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)
251 thousand lbs
Very High
52.0x 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)
16 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)266,392 lbs250,852 lbs15,540 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)31,184 lbs20,676 lbs945 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 71% 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):

m-Cresol, 2,4-Dimethylphenol, p-Cresol, o-Cresol, Phenol

View the full list of 29 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (29 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1m-Cresol108-39-445,935 lbs6,586 lbs5,666,444 lbs
22,4-Dimethylphenol105-67-913,055 lbs965 lbs4,229,319 lbs
3p-Cresol106-44-538,298 lbs3,292 lbs3,009,676 lbs
4o-Cresol95-48-725,461 lbs1,579 lbs1,765,196 lbs
5Phenol108-95-217,879 lbs3,104 lbs1,051,635 lbs
6Styrene100-42-526,310 lbs0 lbs26,310 lbs
7Xylene (mixed isomers)1330-20-721,357 lbs0 lbs21,357 lbs
8Toluene108-88-313,120 lbs0 lbs13,696 lbs
9n-Hexane110-54-312,725 lbs0 lbs12,725 lbs
10Ethylbenzene100-41-410,531 lbs0 lbs10,531 lbs
11Methanol67-56-16,541 lbs0 lbs6,541 lbs
12Benzene71-43-26,362 lbs0 lbs6,362 lbs
13Ammonia7664-41-73,125 lbs0 lbs3,125 lbs
14Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-03,066 lbs0 lbs3,066 lbs
15Cyclohexane110-82-71,732 lbs0 lbs1,732 lbs
16Chlorine7782-50-51,412 lbs0 lbs1,412 lbs
17Formic acid64-18-61,012 lbs0 lbs1,012 lbs
18Certain glycol ethersN230903 lbs0 lbs903 lbs
191,2,4-Trimethylbenzene95-63-6863 lbs0 lbs863 lbs
20Ethylene glycol107-21-1398 lbs0 lbs398 lbs
21Nickel7440-02-0376 lbs1 lbs376 lbs
22Phthalic anhydride85-44-9184 lbs0 lbs184 lbs
23Maleic anhydride108-31-6139 lbs0 lbs139 lbs
24Naphthalene91-20-329 lbs0 lbs29 lbs
25Nitric acid7697-37-228 lbs0 lbs28 lbs
26Nonylphenol EthoxylatesN53510 lbs0 lbs10 lbs
27Lead And Lead CompoundsN4200 lbs7 lbs7 lbs
28Lead compoundsN4200 lbs6 lbs7 lbs
29Mercury7439-97-60 lbs0 lbs2 lbs

Top chemicals released near this property (2024 only):

m-Cresol, 2,4-Dimethylphenol, p-Cresol, o-Cresol, Phenol

View the full list of 12 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (12 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1m-Cresol108-39-45,580 lbs416 lbs7,579 lbs
22,4-Dimethylphenol105-67-91,591 lbs64 lbs7,241 lbs
3p-Cresol106-44-54,895 lbs208 lbs5,894 lbs
4o-Cresol95-48-73,192 lbs103 lbs3,937 lbs
5Phenol108-95-22,525 lbs151 lbs3,053 lbs
6Methanol67-56-11,343 lbs0 lbs1,343 lbs
7Toluene108-88-3314 lbs0 lbs890 lbs
8Cyclohexane110-82-7759 lbs0 lbs759 lbs
9Certain glycol ethersN230214 lbs0 lbs214 lbs
10Formic acid64-18-6173 lbs0 lbs173 lbs
11Nickel7440-02-090 lbs0 lbs98 lbs
12Lead compoundsN4200 lbs3 lbs3 lbs

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