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Home > Analysis: 8021 Harrisburg Blvd, Houston, TX 77012

📊 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
8021 HARRISBURG BLVD HOUSTON 77012
Elevation
21.78 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
Vacant lot (no building data). No structure to calculate damage for.
Depth-Damage Estimate (Neighborhood Comparison)
$0
Vacant lot (no building data). No structure to calculate damage for.
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: 11.78 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)
15.93 million lbs
Extremely High
2442.2x more than typical Houston property
≈ 797 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)
2.9 million lbs
Extremely High
601.8x 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
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)15,933,844 lbs2,902,306 lbs13,031,528 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)2,906,946 lbs261,356 lbs2,052,729 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), Hydrogen cyanide, Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Ammonia, Xylene (mixed isomers)

View the full list of 64 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (64 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Nitrate compounds (water dissociable; reportable only when in aqueous solution)N511013,016,16713,016,167
2Hydrogen cyanide74-90-81,408,01401,408,014
3Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-9383,6350383,635
4Ammonia7664-41-7336,9488,000344,948
5Xylene (mixed isomers)1330-20-7129,6010129,601
6Ozone10028-15-6115,2280115,228
7Toluene108-88-394,3461794,363
8Cyclohexane110-82-780,271080,271
9n-Hexane110-54-376,253076,253
10Benzene71-43-260,1811060,191
11Propylene115-07-153,908053,908
12Hydrogen sulfide7783-06-423,9873,52727,514
13Ethylbenzene100-41-420,6785020,729
141,2,4-Trimethylbenzene95-63-617,333017,333
15Ethylene74-85-116,593016,593
16Ethylene glycol107-21-114,690014,690
171,4-Dioxane123-91-110,779010,779
18Carbon disulfide75-15-08,90808,908
191,3-Butadiene106-99-08,27508,275
20Cyanide compoundsN1065,934455,979
21Molybdenum trioxide1313-27-55,79505,795
22Manganese7439-96-55,2283315,559
23Naphthalene91-20-34,54604,547
24Phenol108-95-21,6351,8043,439
25Polycyclic aromatic compoundsN5902,35612,365
26Styrene100-42-52,27402,275
27Cumene98-82-82,25602,256
28Phthalic anhydride85-44-92,00002,000
29Vinyl acetate108-05-41,60801,608
30Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-01,46001,460
31Carbonyl sulfide463-58-11,45101,451
32Lead7439-92-18823821,264
33Nickel compoundsN4956544891,143
34Acetaldehyde75-07-01,01101,011
35Phenanthrene85-01-89370937
36Methanol67-56-19320932
37Vanadium compoundsN770144509653
381,1,1,2-Tetrachloroethane630-20-64340434
39Cresol (mixed isomers)1319-77-32320232
40Lead And Lead CompoundsN42020316219
41Nickel And Nickel CompoundsN49566123189
42Cobalt compoundsN09613124155
43Dimethylamine124-40-390090
44Lead compoundsN42042648
45Anthracene120-12-744044
46Cobalt And Cobalt CompoundsN09642042
47Zinc compoundsN982142640
48Antimony compoundsN01038038
49Mercury compoundsN45835136
50Nickel7440-02-035035
51Allyl alcohol107-18-634034
52Benzo[g,h,i]perylene191-24-228028
53tert-Butyl alcohol75-65-022022
54Methoxone sodium salt3653-48-320020
55Triethylamine121-44-817017
56Acrolein107-02-813013
57Mercury And Mercury CompoundsN45812012
58Hydroquinone123-31-9909
59Diaminotoluene (mixed isomers)25376-45-8404
60Pyridine110-86-1303
61Chloroethane75-00-3202
62p-Cresol106-44-5202
63Trichloroethylene79-01-6101
642,4-Diaminotoluene95-80-7101

Top chemicals released near this property (2024 only):

Nitrate compounds (water dissociable; reportable only when in aqueous solution), 1,4-Dioxane, Ethylene glycol, Hydrogen cyanide, Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)

View the full list of 40 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (40 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Nitrate compounds (water dissociable; reportable only when in aqueous solution)N51102,051,6612,051,661
21,4-Dioxane123-91-13280396,851
3Ethylene glycol107-21-15,0940177,549
4Hydrogen cyanide74-90-8103,7310103,731
5Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-950,799050,799
6Ammonia7664-41-728,2191,02729,363
7Ozone10028-15-625,701025,701
8Methanol67-56-1152023,827
9Xylene (mixed isomers)1330-20-714,849014,853
10Cyclohexane110-82-77,48607,486
11Toluene108-88-36,11846,133
12Benzene71-43-24,93544,940
13Propylene115-07-13,52903,529
14Molybdenum trioxide1313-27-51,80401,804
151,2,4-Trimethylbenzene95-63-61,44901,449
16Ethylbenzene100-41-41,41241,419
17Carbonyl sulfide463-58-11,04101,041
181,3-Butadiene106-99-07340734
19Hydrogen sulfide7783-06-47150718
20Ethylene74-85-16200620
21n-Hexane110-54-36070607
22Carbon disulfide75-15-04840484
23Naphthalene91-20-32410258
24Cumene98-82-82410241
25Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-02210221
261,1,1,2-Tetrachloroethane630-20-62120212
27Phenol108-95-21640184
28Styrene100-42-51590159
29Lead And Lead CompoundsN4201277136
30Polycyclic aromatic compoundsN59038056
31Cobalt And Cobalt CompoundsN09642042
32Lead7439-92-1202242
33Phenanthrene85-01-836036
34Dimethylamine124-40-323023
35Anthracene120-12-71014
36Mercury And Mercury CompoundsN458808
37Benzo[g,h,i]perylene191-24-2808
38Vinyl acetate108-05-4505
39Acetaldehyde75-07-0101
40Cresol (mixed isomers)1319-77-3101