📊 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
1805 BARBARA CT DEER PARK 77536
Building Size
3,076 sqft
Total structure area from HCAD building records.
Elevation
29.4 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: 19.4 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
Very High
Higher pollution than 92% 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)
11.64 million lbs
Extremely High
1784.6x more than typical Houston property
582 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)
6.02 million lbs
Extremely High
1249.2x 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)
5.62 million 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)11,643,386 lbs6,024,084 lbs5,619,302 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)1,534,313 lbs598,355 lbs523,716 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 92% of Houston homes
Each bar's width represents the percentage of Houston homes in that pollution range. This property ranks in the 0-9th percentile (top 10% most polluted).

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

Nitrate compounds (water dissociable; reportable only when in aqueous solution), Propylene, Ethylene, Ammonia, n-Hexane

View the full list of 66 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (66 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs5,556,970 lbs5,556,970 lbs
2Propylene115-07-12,685,503 lbs0 lbs2,685,503 lbs
3Ethylene74-85-11,418,997 lbs0 lbs1,418,997 lbs
4Ammonia7664-41-7316,515 lbs452 lbs738,447 lbs
5n-Hexane110-54-3551,522 lbs0 lbs551,522 lbs
6Methanol67-56-1221,158 lbs37,738 lbs258,896 lbs
7Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-0197,031 lbs0 lbs197,031 lbs
8Vinyl chloride75-01-4166,484 lbs46 lbs166,529 lbs
91,2-Dichloroethane107-06-2125,688 lbs0 lbs125,688 lbs
10Acetaldehyde75-07-064,543 lbs1,275 lbs65,818 lbs
11Propylene oxide75-56-953,747 lbs0 lbs53,747 lbs
12Ethylene glycol107-21-130,851 lbs9,387 lbs40,238 lbs
13Toluene108-88-321,587 lbs8 lbs21,595 lbs
141,3-Butadiene106-99-019,768 lbs45 lbs19,813 lbs
15Butyl acrylate141-32-218,363 lbs0 lbs18,363 lbs
16Zinc compoundsN9826,712 lbs11,332 lbs18,045 lbs
17Hydrogen sulfide7783-06-417,373 lbs0 lbs17,373 lbs
18Formaldehyde50-00-016,402 lbs0 lbs16,402 lbs
19Chlorobenzene108-90-716,113 lbs0 lbs16,113 lbs
20Chloroethane75-00-313,659 lbs0 lbs13,659 lbs
21Cyclohexane110-82-712,948 lbs0 lbs12,948 lbs
22Maleic anhydride108-31-612,243 lbs0 lbs12,243 lbs
23Chlorine7782-50-511,978 lbs0 lbs11,978 lbs
24Trade SecretTRD SECRT9,705 lbs0 lbs9,705 lbs
25DiisocyanatesN1204,282 lbs0 lbs4,282 lbs
26Barium compounds (except for barium sulfate (CAS No. 7727-43-7))N0400 lbs1,936 lbs1,936 lbs
271,1,2-Trichloroethane79-00-51,537 lbs0 lbs1,537 lbs
28Nonylphenol EthoxylatesN5351,381 lbs0 lbs1,381 lbs
29Certain glycol ethersN2301,237 lbs0 lbs1,237 lbs
30Bis(2-chloroethyl) ether111-44-4950 lbs0 lbs950 lbs
31Isoprene78-79-5923 lbs0 lbs923 lbs
32Chloroform67-66-3638 lbs0 lbs638 lbs
33Trichloroethylene79-01-6603 lbs0 lbs603 lbs
34Hydrogen cyanide74-90-8596 lbs0 lbs596 lbs
35Aluminum (fume or dust)7429-90-5462 lbs0 lbs462 lbs
36Acrylic acid79-10-7348 lbs0 lbs348 lbs
37Chloromethane74-87-3326 lbs0 lbs326 lbs
38Pentachloroethane76-01-7323 lbs0 lbs323 lbs
39Nitric acid7697-37-2309 lbs0 lbs309 lbs
40Boron trifluoride7637-07-2250 lbs0 lbs250 lbs
411,1,2,2-Tetrachloroethane79-34-5219 lbs0 lbs219 lbs
42Tetrachloroethylene127-18-4153 lbs0 lbs153 lbs
43Barium And Barium CompoundsN0400 lbs99 lbs99 lbs
441,2-Dichloroethylene540-59-075 lbs0 lbs75 lbs
45NonylphenolN53061 lbs0 lbs61 lbs
46Diethanolamine111-42-257 lbs0 lbs57 lbs
47Chloroprene126-99-855 lbs0 lbs55 lbs
48Methyl acrylate96-33-347 lbs0 lbs47 lbs
49Ethylidene dichloride75-34-337 lbs0 lbs37 lbs
50Benzene71-43-236 lbs0 lbs36 lbs
51Ethyl acrylate140-88-535 lbs0 lbs35 lbs
52Triethylamine121-44-834 lbs0 lbs34 lbs
53Carbon tetrachloride56-23-527 lbs0 lbs27 lbs
54Manganese compoundsN45026 lbs0 lbs26 lbs
55Methyl methacrylate80-62-625 lbs0 lbs25 lbs
56Diphenylamine122-39-410 lbs14 lbs24 lbs
57Styrene100-42-524 lbs0 lbs24 lbs
58Dichloromethane75-09-222 lbs0 lbs22 lbs
59Ethylbenzene100-41-422 lbs0 lbs22 lbs
60Hexachloroethane67-72-116 lbs0 lbs16 lbs
61Vinylidene chloride75-35-415 lbs0 lbs15 lbs
621,2,4-Trimethylbenzene95-63-610 lbs0 lbs10 lbs
63trans-1,4-Dichloro-2-butene110-57-67 lbs0 lbs7 lbs
64Xylene (mixed isomers)1330-20-76 lbs0 lbs6 lbs
65Hexachlorobenzene118-74-15 lbs0 lbs5 lbs
66N-Methyl-2-pyrrolidone872-50-43 lbs0 lbs3 lbs

Top chemicals released near this property (2024 only):

Nitrate compounds (water dissociable; reportable only when in aqueous solution), Ammonia, Propylene, Ethylene, n-Hexane

View the full list of 53 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (53 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs516,981 lbs516,981 lbs
2Ammonia7664-41-745,973 lbs250 lbs441,059 lbs
3Propylene115-07-1245,648 lbs0 lbs245,648 lbs
4Ethylene74-85-1196,643 lbs0 lbs196,643 lbs
5n-Hexane110-54-355,291 lbs0 lbs56,633 lbs
6Methanol67-56-15,077 lbs5,174 lbs15,702 lbs
7Vinyl chloride75-01-411,013 lbs3 lbs11,016 lbs
81,2-Dichloroethane107-06-28,530 lbs0 lbs8,530 lbs
9Trade SecretTRD SECRT5,677 lbs0 lbs5,677 lbs
10Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-05,046 lbs0 lbs5,046 lbs
11Zinc compoundsN982426 lbs1,135 lbs4,267 lbs
12Acetaldehyde75-07-03,861 lbs161 lbs4,022 lbs
13Polycyclic aromatic compoundsN5900 lbs0 lbs3,621 lbs
14Formaldehyde50-00-03,363 lbs0 lbs3,363 lbs
15Toluene108-88-31,587 lbs3 lbs2,686 lbs
16Cyclohexane110-82-71,566 lbs0 lbs2,461 lbs
17DiisocyanatesN1201,843 lbs0 lbs1,843 lbs
18Ethyl acrylate140-88-56 lbs0 lbs1,809 lbs
19Ethylene glycol107-21-11,527 lbs0 lbs1,527 lbs
20Chloroethane75-00-31,450 lbs0 lbs1,450 lbs
211,3-Butadiene106-99-0993 lbs9 lbs1,002 lbs
22Maleic anhydride108-31-6701 lbs0 lbs701 lbs
23Butyl acrylate141-32-2597 lbs0 lbs597 lbs
24NonylphenolN5302 lbs0 lbs374 lbs
25Certain glycol ethersN230326 lbs0 lbs326 lbs
26Chlorine7782-50-5311 lbs0 lbs311 lbs
27Hydrogen sulfide7783-06-4235 lbs0 lbs235 lbs
281,1,2-Trichloroethane79-00-5166 lbs0 lbs166 lbs
29Acrylic acid79-10-7127 lbs0 lbs127 lbs
30Bis(2-chloroethyl) ether111-44-496 lbs0 lbs96 lbs
31Methyl isobutyl ketone108-10-10 lbs0 lbs44 lbs
32Chloroform67-66-344 lbs0 lbs44 lbs
33Trichloroethylene79-01-643 lbs0 lbs43 lbs
34Lead7439-92-10 lbs0 lbs38 lbs
35Benzo[g,h,i]perylene191-24-20 lbs0 lbs38 lbs
36Pentachloroethane76-01-736 lbs0 lbs36 lbs
37Nitric acid7697-37-231 lbs0 lbs31 lbs
38Aluminum (fume or dust)7429-90-526 lbs0 lbs26 lbs
391,1,2,2-Tetrachloroethane79-34-524 lbs0 lbs24 lbs
40Boron trifluoride7637-07-220 lbs0 lbs20 lbs
41Chlorobenzene108-90-714 lbs0 lbs14 lbs
42Tetrachloroethylene127-18-412 lbs0 lbs12 lbs
431,2-Dichloroethylene540-59-05 lbs0 lbs5 lbs
44Carbon tetrachloride56-23-54 lbs0 lbs4 lbs
45Chloroprene126-99-83 lbs0 lbs3 lbs
46Dichloromethane75-09-22 lbs0 lbs2 lbs
47Hexachloroethane67-72-12 lbs0 lbs2 lbs
48Styrene100-42-52 lbs0 lbs2 lbs
49Ethylbenzene100-41-42 lbs0 lbs2 lbs
50Ethylidene dichloride75-34-31 lbs0 lbs1 lbs
51Benzene71-43-21 lbs0 lbs1 lbs
52Propylene oxide75-56-91 lbs0 lbs1 lbs
53Hexachlorobenzene118-74-11 lbs0 lbs1 lbs

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