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
1509 CEDAR COVE ST LA PORTE 77571
Building Size
1,628 sqft
Total structure area from HCAD building records.
Elevation
13.31 ft
Height above sea level from USGS data.
FEMA Flood Zone
AE
High Risk - 1% annual chance with established base flood elevation
Overall Risk
Moderate
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
Moderate
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: 3.31 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.

  • This property is in a high-risk flood zone. Flood insurance is required for mortgages.
  • Consider flood mitigation measures like elevated utilities and flood vents.
  • 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 87% 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)
3.74 million lbs
Extremely High
573.0x more than typical Houston property
≈ 187 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)
3.74 million lbs
Extremely High
775.1x 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)
479 lbs
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)3,738,226 lbs3,737,747 lbs479 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)2,035,235 lbs342,760 lbs5 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 87% 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):

n-Hexane, Ethylene, Methanol, Toluene, Ammonia

View the full list of 61 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (61 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1n-Hexane110-54-31,030,724 lbs0 lbs1,030,724 lbs
2Ethylene74-85-1743,892 lbs0 lbs743,892 lbs
3Methanol67-56-1442,795 lbs55 lbs442,850 lbs
4Toluene108-88-3429,470 lbs0 lbs429,470 lbs
5Ammonia7664-41-7310,361 lbs0 lbs310,361 lbs
6Vinyl acetate108-05-4139,491 lbs0 lbs139,491 lbs
7Cyclohexane110-82-7102,641 lbs0 lbs102,641 lbs
8Acrylonitrile107-13-183,639 lbs0 lbs83,639 lbs
9n-Butyl alcohol71-36-355,640 lbs0 lbs55,640 lbs
10Hydroquinone123-31-942,495 lbs0 lbs42,495 lbs
11Propylene115-07-136,801 lbs0 lbs36,801 lbs
12Methyl isobutyl ketone108-10-136,313 lbs0 lbs36,313 lbs
13Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-035,668 lbs0 lbs35,668 lbs
14Cumene98-82-831,096 lbs0 lbs31,096 lbs
15Xylene (mixed isomers)1330-20-730,648 lbs0 lbs30,648 lbs
16Phenol108-95-230,497 lbs0 lbs30,497 lbs
17Styrene100-42-517,954 lbs0 lbs17,954 lbs
18Propylene oxide75-56-916,752 lbs0 lbs16,752 lbs
19Isoprene78-79-515,828 lbs0 lbs15,828 lbs
20Acetaldehyde75-07-014,843 lbs0 lbs14,843 lbs
21Chlorine7782-50-512,676 lbs0 lbs12,676 lbs
221,3-Butadiene106-99-012,674 lbs0 lbs12,674 lbs
23Benzene71-43-210,536 lbs0 lbs10,536 lbs
24Diphenylamine122-39-45,851 lbs0 lbs5,851 lbs
25Ethylbenzene100-41-45,213 lbs0 lbs5,213 lbs
26Chloroacetic acid79-11-84,175 lbs0 lbs4,175 lbs
27Acrylic acid79-10-73,532 lbs0 lbs3,532 lbs
28Chlorobenzene108-90-73,127 lbs0 lbs3,127 lbs
29Methyl methacrylate80-62-63,050 lbs0 lbs3,050 lbs
30Formaldehyde50-00-02,692 lbs0 lbs2,692 lbs
311,2-Butylene oxide106-88-72,348 lbs0 lbs2,348 lbs
32Dimethylamine124-40-32,009 lbs0 lbs2,009 lbs
33Phosgene75-44-51,958 lbs0 lbs1,958 lbs
34Allyl alcohol107-18-61,820 lbs0 lbs1,820 lbs
35Acetonitrile75-05-81,765 lbs0 lbs1,765 lbs
36Methyl tert-butyl ether1634-04-41,591 lbs0 lbs1,591 lbs
37Triethylamine121-44-81,515 lbs0 lbs1,515 lbs
38Ethyl chloroformate541-41-31,467 lbs0 lbs1,467 lbs
39Methyl chlorocarbonate79-22-11,449 lbs0 lbs1,449 lbs
40sec-Butyl alcohol78-92-21,434 lbs0 lbs1,434 lbs
41Ethylene oxide75-21-81,431 lbs0 lbs1,431 lbs
42Nitric acid7697-37-21,419 lbs0 lbs1,419 lbs
43tert-Butyl alcohol75-65-01,254 lbs0 lbs1,254 lbs
44Dicyclopentadiene77-73-61,178 lbs0 lbs1,178 lbs
45Maleic anhydride108-31-6965 lbs0 lbs965 lbs
46Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-9597 lbs0 lbs597 lbs
47N,N-Dimethylformamide68-12-2535 lbs0 lbs535 lbs
48Ethylene glycol107-21-1527 lbs0 lbs527 lbs
49Manganese7439-96-5511 lbs0 lbs511 lbs
50Hydrazine302-01-2437 lbs0 lbs437 lbs
51Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs370 lbs370 lbs
52Dichloromethane75-09-2251 lbs0 lbs251 lbs
531,2,4-Trimethylbenzene95-63-670 lbs0 lbs70 lbs
54Zinc compoundsN98235 lbs33 lbs68 lbs
55Naphthalene91-20-363 lbs0 lbs63 lbs
56Antimony compoundsN01020 lbs15 lbs35 lbs
57Phthalic anhydride85-44-913 lbs0 lbs13 lbs
58Antimony And Antimony CompoundsN0105 lbs5 lbs10 lbs
59Butyl acrylate141-32-25 lbs0 lbs5 lbs
60Boron trifluoride7637-07-21 lbs0 lbs1 lbs
61Nickel compoundsN4950 lbs1 lbs1 lbs

Top chemicals released near this property (2024 only):

Methanol, Allyl alcohol, n-Hexane, Vinyl acetate, Toluene

View the full list of 48 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (48 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Methanol67-56-126,170 lbs5 lbs890,241 lbs
2Allyl alcohol107-18-696 lbs0 lbs233,588 lbs
3n-Hexane110-54-3117,061 lbs0 lbs134,809 lbs
4Vinyl acetate108-05-414,116 lbs0 lbs128,626 lbs
5Toluene108-88-314,243 lbs0 lbs102,639 lbs
6Ethylene74-85-196,034 lbs0 lbs96,034 lbs
7Dimethylamine124-40-3228 lbs0 lbs91,985 lbs
8Nickel compoundsN4950 lbs0 lbs74,741 lbs
9Diphenylamine122-39-4105 lbs0 lbs48,731 lbs
10Styrene100-42-5798 lbs0 lbs29,705 lbs
11Cyclohexane110-82-78,101 lbs0 lbs29,411 lbs
12Xylene (mixed isomers)1330-20-7684 lbs0 lbs26,017 lbs
13Ammonia7664-41-725,258 lbs0 lbs25,484 lbs
14Acetaldehyde75-07-0496 lbs0 lbs23,127 lbs
15Chloroacetic acid79-11-8476 lbs0 lbs20,694 lbs
16tert-Butyl alcohol75-65-026 lbs0 lbs15,456 lbs
17Propylene115-07-110,035 lbs0 lbs10,035 lbs
18Dicyclopentadiene77-73-697 lbs0 lbs7,551 lbs
19Phenol108-95-21,875 lbs0 lbs6,506 lbs
20Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-06,374 lbs0 lbs6,374 lbs
21Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0900 lbs0 lbs5,055 lbs
22Hydroquinone123-31-94,862 lbs0 lbs4,862 lbs
23n-Butyl alcohol71-36-31,017 lbs0 lbs4,633 lbs
24Methyl isobutyl ketone108-10-13,997 lbs0 lbs3,997 lbs
25sec-Butyl alcohol78-92-293 lbs0 lbs3,447 lbs
26Cumene98-82-82,611 lbs0 lbs2,611 lbs
27Isoprene78-79-52,125 lbs0 lbs2,125 lbs
281,3-Butadiene106-99-01,187 lbs0 lbs1,187 lbs
29Benzene71-43-21,090 lbs0 lbs1,090 lbs
30Chlorine7782-50-5961 lbs0 lbs961 lbs
31Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs0 lbs551 lbs
32Propylene oxide75-56-9430 lbs0 lbs430 lbs
33Ethylene oxide75-21-8420 lbs0 lbs420 lbs
34Methyl methacrylate80-62-6387 lbs0 lbs387 lbs
35Naphthalene91-20-312 lbs0 lbs371 lbs
36Ethylbenzene100-41-4271 lbs0 lbs283 lbs
37Nitric acid7697-37-2219 lbs0 lbs219 lbs
38Acrylic acid79-10-7186 lbs0 lbs192 lbs
39Maleic anhydride108-31-6178 lbs0 lbs178 lbs
40Formaldehyde50-00-0151 lbs0 lbs154 lbs
41Ethyl chloroformate541-41-3120 lbs0 lbs120 lbs
421,2-Butylene oxide106-88-752 lbs0 lbs52 lbs
43Hydrazine302-01-239 lbs0 lbs39 lbs
44Antimony And Antimony CompoundsN0100 lbs0 lbs33 lbs
45Phosgene75-44-527 lbs0 lbs27 lbs
461,2,4-Trimethylbenzene95-63-625 lbs0 lbs25 lbs
47Ethylene glycol107-21-115 lbs0 lbs21 lbs
48Methyl chlorocarbonate79-22-113 lbs0 lbs13 lbs

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