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
3725 PECAN CROSSING LN LA PORTE 77571
Building Size
2,270 sqft
Total structure area from HCAD building records.
Elevation
22.86 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: 12.86 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 83% 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)
1.6 million lbs
Extremely High
245.6x more than typical Houston property
≈ 80 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)
1.59 million lbs
Extremely High
328.9x 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)1,602,295 lbs1,585,959 lbs16,336 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)1,098,644 lbs107,410 lbs1,275 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 83% of Houston homes
Each bar's width represents the percentage of Houston homes in that pollution range. This property ranks in the 10-19th percentile (top 15% most polluted).

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

Nitric acid, Ammonia, Ethylene, Ethylene glycol, Ethylene oxide

View the full list of 45 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (45 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Nitric acid7697-37-2397,654 lbs55 lbs397,734 lbs
2Ammonia7664-41-7395,794 lbs123 lbs395,937 lbs
3Ethylene74-85-1325,882 lbs0 lbs325,882 lbs
4Ethylene glycol107-21-1104,841 lbs0 lbs104,841 lbs
5Ethylene oxide75-21-898,927 lbs0 lbs98,927 lbs
6Certain glycol ethersN23046,549 lbs0 lbs46,550 lbs
7Molybdenum trioxide1313-27-537,655 lbs3,227 lbs40,897 lbs
8Methanol67-56-126,479 lbs0 lbs33,006 lbs
9Hydrogen sulfide7783-06-431,678 lbs0 lbs31,678 lbs
10Acetaldehyde75-07-025,328 lbs0 lbs25,328 lbs
11Nickel compoundsN49511,795 lbs1,904 lbs13,714 lbs
12n-Butyl alcohol71-36-312,669 lbs0 lbs12,669 lbs
132-Methoxyethanol109-86-411,669 lbs0 lbs11,669 lbs
14Nitrate compounds (water dissociable; reportable only when in aqueous solution)N51130 lbs9,885 lbs9,930 lbs
15Toluene108-88-39,589 lbs0 lbs9,589 lbs
16Chloroethane75-00-39,070 lbs0 lbs9,070 lbs
17n-Hexane110-54-37,167 lbs0 lbs7,167 lbs
18Cobalt compoundsN0965,871 lbs886 lbs6,772 lbs
192-Ethoxyethanol110-80-56,044 lbs0 lbs6,044 lbs
20Nickel And Nickel CompoundsN4954,878 lbs62 lbs4,940 lbs
21Cobalt And Cobalt CompoundsN0964,551 lbs42 lbs4,593 lbs
22Xylene (mixed isomers)1330-20-72,454 lbs0 lbs2,454 lbs
23Propylene oxide75-56-91,981 lbs0 lbs1,981 lbs
24Dimethylamine124-40-31,745 lbs0 lbs1,745 lbs
25NonylphenolN5301,013 lbs0 lbs1,013 lbs
26Nonylphenol EthoxylatesN5351,008 lbs0 lbs1,008 lbs
271,2,4-Trimethylbenzene95-63-6971 lbs0 lbs971 lbs
28Cyclohexane110-82-7857 lbs0 lbs857 lbs
29Maleic anhydride108-31-6612 lbs0 lbs612 lbs
30Lead And Lead CompoundsN420211 lbs10 lbs221 lbs
31Barium compounds (except for barium sulfate (CAS No. 7727-43-7))N040145 lbs30 lbs175 lbs
32Bifenthrin82657-04-3149 lbs0 lbs149 lbs
33Formaldehyde50-00-046 lbs102 lbs148 lbs
34Lead compoundsN420138 lbs4 lbs142 lbs
35Copper compoundsN100132 lbs6 lbs138 lbs
36Ethylbenzene100-41-494 lbs0 lbs94 lbs
37Diphenylamine122-39-487 lbs0 lbs87 lbs
38Cumene98-82-868 lbs0 lbs68 lbs
39Cyanide compoundsN1065 lbs0 lbs58 lbs
40Chloromethane74-87-351 lbs0 lbs51 lbs
41Naphthalene91-20-333 lbs0 lbs33 lbs
42tert-Butyl alcohol75-65-023 lbs0 lbs23 lbs
43Oxyfluorfen42874-03-310 lbs0 lbs10 lbs
44Bis(2-chloroethyl) ether111-44-43 lbs0 lbs3 lbs
45Methyl methacrylate80-62-62 lbs0 lbs2 lbs

Top chemicals released near this property (2024 only):

Methanol, Ethylene glycol, Nonylphenol Ethoxylates, Molybdenum trioxide, Ammonia

View the full list of 39 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (39 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Methanol67-56-14,285 lbs0 lbs515,662 lbs
2Ethylene glycol107-21-13,267 lbs0 lbs147,087 lbs
3Nonylphenol EthoxylatesN535131 lbs0 lbs93,342 lbs
4Molybdenum trioxide1313-27-52,770 lbs482 lbs79,984 lbs
5Ammonia7664-41-744,465 lbs5 lbs46,065 lbs
61,2,4-Trimethylbenzene95-63-674 lbs0 lbs44,010 lbs
7Copper7440-50-80 lbs0 lbs27,230 lbs
8Ethylene74-85-118,976 lbs0 lbs18,976 lbs
9Ethylene oxide75-21-87,605 lbs0 lbs16,153 lbs
10Toluene108-88-3295 lbs0 lbs15,888 lbs
11Xylene (mixed isomers)1330-20-739 lbs0 lbs13,258 lbs
12Certain glycol ethersN2303,460 lbs0 lbs13,228 lbs
13Nickel And Nickel CompoundsN49582 lbs8 lbs12,690 lbs
14Chloroethane75-00-33,424 lbs0 lbs9,649 lbs
15Nitric acid7697-37-29,488 lbs5 lbs9,498 lbs
16Nickel compoundsN4951,017 lbs108 lbs7,851 lbs
17Naphthalene91-20-30 lbs0 lbs4,065 lbs
18Hydrogen sulfide7783-06-43,596 lbs0 lbs3,596 lbs
19n-Butyl alcohol71-36-31,271 lbs0 lbs3,468 lbs
20Cobalt compoundsN096455 lbs36 lbs2,816 lbs
21Cumene98-82-84 lbs0 lbs2,713 lbs
22Ethylbenzene100-41-44 lbs0 lbs2,643 lbs
23Styrene100-42-50 lbs0 lbs1,734 lbs
24Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs622 lbs1,122 lbs
252-Methoxyethanol109-86-41,027 lbs0 lbs1,045 lbs
26Acetaldehyde75-07-0375 lbs0 lbs1,034 lbs
27Cobalt And Cobalt CompoundsN09682 lbs8 lbs917 lbs
28n-Hexane110-54-3607 lbs0 lbs631 lbs
29Formaldehyde50-00-03 lbs0 lbs513 lbs
302-Ethoxyethanol110-80-5407 lbs0 lbs429 lbs
31Maleic anhydride108-31-68 lbs0 lbs414 lbs
32Cyclohexane110-82-724 lbs0 lbs315 lbs
33NonylphenolN5301 lbs0 lbs224 lbs
34Propylene oxide75-56-939 lbs0 lbs203 lbs
35Dimethylamine124-40-3113 lbs0 lbs113 lbs
36Lead And Lead CompoundsN42016 lbs1 lbs68 lbs
37Methyl methacrylate80-62-60 lbs0 lbs4 lbs
38Acrylonitrile107-13-10 lbs0 lbs4 lbs
39Aniline62-53-30 lbs0 lbs2 lbs

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