Data-driven insights for local properties

Complete Property Analysis

Environmental risk, tax analysis, and property details for 1125 Ellen Dr, Deer Park, TX 77536

HCAD #0961900000007
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🌍Environmental Assessment

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.

🌊Flood Risk Analysis
FEMA Zone X
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
1125 Ellen Dr, Deer Park, TX 77536
Building Size
1,709sqft
Total structure area from HCAD building records.
Elevation
29.8 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
69.8 acres
23.7% of 500m radius flooded.
Nearest Bayou Stage
N/A
No nearby bayou within monitoring range
Depth-Damage (HCAD Valuation)
$0
Property not flooded. No damage to calculate.
Depth-Damage (Neighborhood)
$0
Property not flooded. No damage to calculate.
Analysis Method
COG Combined 5000 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: 0 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.

#1
Minimal flood hazard area - property outside mapped high-risk zones
#2
Flood insurance available at preferred rates - over 25% of claims occur in low-risk areas
#3
Review official FEMA Flood Insurance Rate Map (FIRM) for detailed flood zone boundaries
#4
Contact Harris County Flood Control District (HCFCD) for drainage projects and flood information
🏭Industrial Pollution Exposure
14.2th percentile
Property Pollution Ranking
High
Higher pollution than 86% of Houston homes
Compares pollution within 2mi against 10,000 Houston properties. Lower percentiles = higher pollution.
Industrial Pollution Nearby (10 Years)
2.93 millionlbs
Extremely High
449.2x more than typical Houston property
≈ 147 dump trucks of chemicals within 2 miles
Air Pollution (10 Years)
2.62 millionlbs
Extremely High
542.5x more than typical Houston property
Includes fugitive emissions (leaks) and stack emissions (smokestacks).
Water Pollution (10 Years)
315 thousandlbs
Extremely High
Discharges to bayous, streams, and drainage systems.
Facilities Nearby
12
Industrial facilities within 2 miles
💡
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)2,930,472 lbs2,615,895 lbs314,577 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)644,071 lbs228,935 lbs28,014 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 86% 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 chemicals released near this property (past 10 years):
Propylene, Ammonia, n-Hexane, Ethylene, Methanol
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)
1Propylene115-07-1891,483 lbs0 lbs891,483 lbs
2Ammonia7664-41-7316,515 lbs452 lbs738,447 lbs
3n-Hexane110-54-3433,619 lbs0 lbs433,619 lbs
4Ethylene74-85-1287,527 lbs0 lbs287,527 lbs
5Methanol67-56-1221,158 lbs37,738 lbs258,896 lbs
6Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs256,774 lbs256,774 lbs
7Vinyl chloride75-01-4122,061 lbs46 lbs122,106 lbs
8Acetaldehyde75-07-064,543 lbs1,275 lbs65,818 lbs
9Propylene oxide75-56-953,747 lbs0 lbs53,747 lbs
10Ethylene glycol107-21-130,851 lbs9,387 lbs40,238 lbs
11Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-028,908 lbs0 lbs28,908 lbs
12Toluene108-88-321,587 lbs8 lbs21,595 lbs
131,3-Butadiene106-99-019,768 lbs45 lbs19,813 lbs
14Butyl acrylate141-32-218,363 lbs0 lbs18,363 lbs
15Hydrogen sulfide7783-06-417,373 lbs0 lbs17,373 lbs
16Formaldehyde50-00-016,402 lbs0 lbs16,402 lbs
17Zinc compoundsN9826,712 lbs6,803 lbs13,516 lbs
18Chloroethane75-00-313,375 lbs0 lbs13,375 lbs
19Cyclohexane110-82-712,948 lbs0 lbs12,948 lbs
20Maleic anhydride108-31-612,243 lbs0 lbs12,243 lbs
21Trade SecretTRD SECRT9,705 lbs0 lbs9,705 lbs
22Chlorine7782-50-57,352 lbs0 lbs7,352 lbs
23DiisocyanatesN1204,007 lbs0 lbs4,007 lbs
24Barium compounds (except for barium sulfate (CAS No. 7727-43-7))N0400 lbs1,936 lbs1,936 lbs
25Nonylphenol EthoxylatesN5351,381 lbs0 lbs1,381 lbs
26Certain glycol ethersN2301,237 lbs0 lbs1,237 lbs
27Isoprene78-79-5923 lbs0 lbs923 lbs
28Hydrogen cyanide74-90-8596 lbs0 lbs596 lbs
29Aluminum (fume or dust)7429-90-5462 lbs0 lbs462 lbs
30Acrylic acid79-10-7348 lbs0 lbs348 lbs
31Chloromethane74-87-3326 lbs0 lbs326 lbs
32Barium And Barium CompoundsN0400 lbs99 lbs99 lbs
33NonylphenolN53061 lbs0 lbs61 lbs
34Diethanolamine111-42-257 lbs0 lbs57 lbs
35Nitric acid7697-37-249 lbs0 lbs49 lbs
36Methyl acrylate96-33-347 lbs0 lbs47 lbs
37Ethyl acrylate140-88-535 lbs0 lbs35 lbs
38Triethylamine121-44-834 lbs0 lbs34 lbs
39Manganese compoundsN45026 lbs0 lbs26 lbs
40Methyl methacrylate80-62-625 lbs0 lbs25 lbs
41Diphenylamine122-39-410 lbs14 lbs24 lbs
42Boron trifluoride7637-07-211 lbs0 lbs11 lbs
431,2,4-Trimethylbenzene95-63-610 lbs0 lbs10 lbs
44Xylene (mixed isomers)1330-20-76 lbs0 lbs6 lbs
45N-Methyl-2-pyrrolidone872-50-43 lbs0 lbs3 lbs
📋
Top chemicals released near this property (2024 only):
Ammonia, Propylene, n-Hexane, Ethylene, Nitrate compounds (water dissociable; reportable only when in aqueous solution)
View the full list of 28 chemicals reported within 2 miles for 2024.
Chemicals Released (2024 Only)(28 chemicals)
#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Ammonia7664-41-745,973 lbs250 lbs433,345 lbs
2Propylene115-07-183,354 lbs0 lbs83,354 lbs
3n-Hexane110-54-331,953 lbs0 lbs31,953 lbs
4Ethylene74-85-130,290 lbs0 lbs30,290 lbs
5Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs21,502 lbs21,502 lbs
6Methanol67-56-15,077 lbs5,174 lbs10,251 lbs
7Vinyl chloride75-01-47,883 lbs3 lbs7,886 lbs
8Trade SecretTRD SECRT5,677 lbs0 lbs5,677 lbs
9Acetaldehyde75-07-03,861 lbs161 lbs4,022 lbs
10Formaldehyde50-00-03,363 lbs0 lbs3,363 lbs
11DiisocyanatesN1201,843 lbs0 lbs1,843 lbs
12Toluene108-88-31,587 lbs3 lbs1,590 lbs
13Cyclohexane110-82-71,566 lbs0 lbs1,566 lbs
14Ethylene glycol107-21-11,527 lbs0 lbs1,527 lbs
15Chloroethane75-00-31,429 lbs0 lbs1,429 lbs
16Zinc compoundsN982426 lbs912 lbs1,338 lbs
171,3-Butadiene106-99-0993 lbs9 lbs1,002 lbs
18Maleic anhydride108-31-6701 lbs0 lbs701 lbs
19Butyl acrylate141-32-2597 lbs0 lbs597 lbs
20Certain glycol ethersN230326 lbs0 lbs326 lbs
21Hydrogen sulfide7783-06-4235 lbs0 lbs235 lbs
22Acrylic acid79-10-7127 lbs0 lbs127 lbs
23Chlorine7782-50-5101 lbs0 lbs101 lbs
24Aluminum (fume or dust)7429-90-526 lbs0 lbs26 lbs
25Nitric acid7697-37-211 lbs0 lbs11 lbs
26Ethyl acrylate140-88-56 lbs0 lbs6 lbs
27NonylphenolN5302 lbs0 lbs2 lbs
28Propylene oxide75-56-91 lbs0 lbs1 lbs
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