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
1902 7TH ST GALENA PARK 77547
Building Size
2,031 sqft
Total structure area from HCAD building records.
Elevation
26.61 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: 16.61 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 93% 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)
18.88 million lbs
Extremely High
2894.4x more than typical Houston property
≈ 944 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)
5.85 million lbs
Extremely High
1213.0x 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)
13.03 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)18,884,057 lbs5,849,664 lbs13,034,393 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)2,651,639 lbs481,490 lbs2,052,804 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 93% 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), Hydrogen cyanide, n-Hexane, Ammonia, Xylene (mixed isomers)

View the full list of 56 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (56 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs13,016,167 lbs13,016,167 lbs
2Hydrogen cyanide74-90-82,226,566 lbs0 lbs2,226,566 lbs
3n-Hexane110-54-3557,662 lbs9 lbs557,749 lbs
4Ammonia7664-41-7370,628 lbs8,000 lbs378,628 lbs
5Xylene (mixed isomers)1330-20-7345,198 lbs645 lbs345,944 lbs
6Ethylene74-85-1309,664 lbs0 lbs309,664 lbs
7Toluene108-88-3283,467 lbs209 lbs283,787 lbs
8Benzene71-43-2267,813 lbs113 lbs267,955 lbs
9Propylene115-07-1248,260 lbs0 lbs248,260 lbs
101,3-Butadiene106-99-0228,213 lbs0 lbs228,213 lbs
11Hydrogen sulfide7783-06-4224,124 lbs3,527 lbs227,651 lbs
12Cyclohexane110-82-7147,431 lbs0 lbs147,440 lbs
13n-Butyl alcohol71-36-3137,606 lbs0 lbs137,606 lbs
14Ozone10028-15-6115,228 lbs0 lbs115,228 lbs
15Diethanolamine111-42-2101,560 lbs0 lbs101,560 lbs
16Methanol67-56-168,150 lbs0 lbs68,150 lbs
17Ethylbenzene100-41-449,688 lbs70 lbs49,803 lbs
18Propionaldehyde123-38-631,241 lbs0 lbs31,241 lbs
191,2,4-Trimethylbenzene95-63-623,854 lbs0 lbs24,083 lbs
20Butyraldehyde123-72-822,150 lbs0 lbs22,150 lbs
21Dicyclopentadiene77-73-614,013 lbs0 lbs14,013 lbs
22Isoprene78-79-513,272 lbs0 lbs13,272 lbs
23Naphthalene91-20-39,179 lbs3 lbs9,195 lbs
24Carbon disulfide75-15-08,557 lbs0 lbs8,557 lbs
25Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-96,697 lbs0 lbs6,697 lbs
26Cyanide compoundsN1065,934 lbs45 lbs5,979 lbs
27Molybdenum trioxide1313-27-55,795 lbs0 lbs5,795 lbs
28Polycyclic aromatic compoundsN5904,518 lbs115 lbs4,835 lbs
29Phenol108-95-21,635 lbs2,959 lbs4,594 lbs
30Manganese7439-96-54,228 lbs0 lbs4,228 lbs
31Cumene98-82-84,081 lbs0 lbs4,088 lbs
32Isobutyraldehyde78-84-24,080 lbs0 lbs4,080 lbs
33Styrene100-42-53,310 lbs0 lbs3,310 lbs
34Zinc compoundsN982219 lbs1,181 lbs2,891 lbs
35Carbonyl sulfide463-58-11,451 lbs0 lbs1,451 lbs
36Nickel compoundsN495654 lbs489 lbs1,143 lbs
37Phenanthrene85-01-8937 lbs0 lbs937 lbs
38Lead7439-92-1489 lbs127 lbs616 lbs
39Vanadium compoundsN77079 lbs509 lbs588 lbs
40Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-0461 lbs0 lbs461 lbs
41Biphenyl92-52-4345 lbs0 lbs364 lbs
42Cresol (mixed isomers)1319-77-3232 lbs0 lbs232 lbs
43Mercury compoundsN458197 lbs1 lbs199 lbs
44Nickel And Nickel CompoundsN49566 lbs123 lbs189 lbs
45Cobalt compoundsN096131 lbs24 lbs155 lbs
46Lead And Lead CompoundsN420142 lbs12 lbs154 lbs
47Mercury And Mercury CompoundsN458109 lbs0 lbs109 lbs
48Lead compoundsN42050 lbs57 lbs107 lbs
49Mercury7439-97-689 lbs0 lbs89 lbs
50Anthracene120-12-775 lbs0 lbs75 lbs
51Cobalt And Cobalt CompoundsN09642 lbs0 lbs42 lbs
52Antimony compoundsN01038 lbs0 lbs38 lbs
53Nickel7440-02-035 lbs0 lbs35 lbs
54Benzo[g,h,i]perylene191-24-213 lbs7 lbs20 lbs
55Ethylene glycol107-21-10 lbs0 lbs9 lbs
56tert-Butyl alcohol75-65-07 lbs0 lbs7 lbs

Top chemicals released near this property (2024 only):

Nitrate compounds (water dissociable; reportable only when in aqueous solution), Hydrogen cyanide, Diethanolamine, Ammonia, n-Hexane

View the full list of 43 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (43 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs2,051,661 lbs2,051,661 lbs
2Hydrogen cyanide74-90-8177,459 lbs0 lbs177,459 lbs
3Diethanolamine111-42-210,082 lbs0 lbs85,611 lbs
4Ammonia7664-41-736,776 lbs1,027 lbs46,194 lbs
5n-Hexane110-54-341,524 lbs0 lbs41,595 lbs
6Xylene (mixed isomers)1330-20-734,354 lbs18 lbs34,454 lbs
71,3-Butadiene106-99-033,109 lbs0 lbs33,109 lbs
8Ozone10028-15-625,701 lbs0 lbs25,701 lbs
9Toluene108-88-324,471 lbs12 lbs24,602 lbs
10Ethylene74-85-123,961 lbs0 lbs23,961 lbs
11Benzene71-43-221,094 lbs6 lbs21,141 lbs
12Zinc compoundsN98222 lbs32 lbs19,978 lbs
13Hydrogen sulfide7783-06-413,545 lbs0 lbs13,548 lbs
14Propylene115-07-113,037 lbs0 lbs13,037 lbs
15Cyclohexane110-82-711,828 lbs0 lbs11,828 lbs
16Ethylene glycol107-21-10 lbs0 lbs7,019 lbs
17Ethylbenzene100-41-44,258 lbs12 lbs4,311 lbs
18Phenol108-95-2164 lbs8 lbs3,009 lbs
19Isoprene78-79-52,371 lbs0 lbs2,371 lbs
201,2,4-Trimethylbenzene95-63-61,868 lbs0 lbs1,942 lbs
21Molybdenum trioxide1313-27-51,804 lbs0 lbs1,804 lbs
22Certain glycol ethersN2300 lbs0 lbs1,111 lbs
23Naphthalene91-20-31,013 lbs0 lbs1,097 lbs
24Carbonyl sulfide463-58-11,041 lbs0 lbs1,041 lbs
25Nickel And Nickel CompoundsN4950 lbs0 lbs915 lbs
26Lead And Lead CompoundsN42096 lbs7 lbs901 lbs
27Cumene98-82-8559 lbs0 lbs564 lbs
28Polycyclic aromatic compoundsN590354 lbs15 lbs369 lbs
29Lead compoundsN4200 lbs0 lbs269 lbs
30Styrene100-42-5269 lbs0 lbs269 lbs
31Carbon disulfide75-15-0243 lbs0 lbs243 lbs
32Lead7439-92-1228 lbs1 lbs242 lbs
33Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-9101 lbs0 lbs101 lbs
34Cobalt And Cobalt CompoundsN09642 lbs0 lbs42 lbs
35Phenanthrene85-01-836 lbs0 lbs36 lbs
36Biphenyl92-52-433 lbs0 lbs33 lbs
37Mercury And Mercury CompoundsN45829 lbs0 lbs31 lbs
38Anthracene120-12-71 lbs0 lbs14 lbs
39Benzo[g,h,i]perylene191-24-28 lbs5 lbs13 lbs
40Mercury7439-97-67 lbs0 lbs7 lbs
41Vanadium (except when contained in an alloy)7440-62-20 lbs0 lbs3 lbs
42Methanol67-56-10 lbs0 lbs2 lbs
43Cresol (mixed isomers)1319-77-31 lbs0 lbs1 lbs

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