Data-driven insights for local properties

Complete Property Analysis

Environmental risk, tax analysis, and property details for 300 Jefferson Rd, Pasadena, TX 77506

HCAD #0450020010027
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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
300 Jefferson Rd, Pasadena, TX 77506
Elevation
23.93 ft
Height above sea level from USGS data.
FEMA Flood Zone
X
Moderate to Low Risk - Outside 500-year floodplain
Overall Risk
Very High
Property flooded at 9.84ft depth.
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 High
Flood Depth
9.84 ft±0.5 ft
Depth of water above ground level.
Water Surface Elevation (WSE)
33.77 ft
Water surface elevation relative to sea level (NAVD88 datum).
Area Inundated
251.3 acres
85.2% of 500m radius flooded.
Nearest Bayou Stage
N/A
No nearby bayou within monitoring range
Depth-Damage (HCAD Valuation)
$0
Vacant lot (no building data).
Depth-Damage (Neighborhood)
$0
Vacant lot (no building data).
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 Flooded
Flood Depth: 9.84 feet
Severity
Severe
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
11.6th percentile
Property Pollution Ranking
High
Higher pollution than 88% of Houston homes
Compares pollution within 2mi against 10,000 Houston properties. Lower percentiles = higher pollution.
Industrial Pollution Nearby (10 Years)
5.13 millionlbs
Extremely High
786.5x more than typical Houston property
≈ 257 dump trucks of chemicals within 2 miles
Air Pollution (10 Years)
5.09 millionlbs
Extremely High
1055.6x more than typical Houston property
Includes fugitive emissions (leaks) and stack emissions (smokestacks).
Water Pollution (10 Years)
41 thousandlbs
Extremely High
Discharges to bayous, streams, and drainage systems.
Facilities Nearby
13
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)5,131,556 lbs5,090,492 lbs41,064 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)292,307 lbs291,221 lbs602 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 88% 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):
Ethylene, n-Hexane, Ammonia, Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Propylene
View the full list of 54 chemicals below.
Chemicals Released (2014-2024, 10-Year Total)(54 chemicals)
#ChemicalCAS#Air (lbs/10yr)Water (lbs/10yr)Total (lbs/10yr)
1Ethylene74-85-11,138,404 lbs0 lbs1,138,404 lbs
2n-Hexane110-54-31,048,788 lbs170 lbs1,049,371 lbs
3Ammonia7664-41-7763,546 lbs33,581 lbs797,127 lbs
4Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-9528,487 lbs0 lbs528,487 lbs
5Propylene115-07-1271,630 lbs0 lbs271,630 lbs
6Methanol67-56-1268,262 lbs0 lbs268,262 lbs
7Hydrogen cyanide74-90-8213,734 lbs0 lbs213,734 lbs
8Xylene (mixed isomers)1330-20-7208,704 lbs129 lbs211,171 lbs
9Toluene108-88-3181,822 lbs43 lbs182,732 lbs
10Benzene71-43-286,351 lbs44 lbs86,950 lbs
11Vinyl acetate108-05-470,754 lbs0 lbs70,754 lbs
121,2,4-Trimethylbenzene95-63-647,768 lbs105 lbs48,136 lbs
13Ethylbenzene100-41-438,993 lbs61 lbs39,648 lbs
14Hydrogen sulfide7783-06-437,772 lbs0 lbs37,773 lbs
15Certain glycol ethersN23037,184 lbs0 lbs37,184 lbs
161,3-Butadiene106-99-029,382 lbs0 lbs29,383 lbs
17Naphthalene91-20-316,264 lbs21 lbs17,608 lbs
18Cyclohexane110-82-715,071 lbs0 lbs15,830 lbs
19Boron trifluoride7637-07-214,843 lbs0 lbs14,843 lbs
20Zinc compoundsN9827,485 lbs6,851 lbs14,336 lbs
21Cumene98-82-89,062 lbs10 lbs9,255 lbs
22Dimethylamine124-40-36,912 lbs0 lbs6,912 lbs
23Chlorine7782-50-56,750 lbs0 lbs6,750 lbs
24Acetaldehyde75-07-06,116 lbs0 lbs6,116 lbs
25Ethylene glycol107-21-15,554 lbs0 lbs5,554 lbs
26Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-05,281 lbs0 lbs5,281 lbs
27Phenol108-95-25,163 lbs0 lbs5,163 lbs
28Biphenyl92-52-44,816 lbs0 lbs5,138 lbs
29Formaldehyde50-00-03,345 lbs0 lbs3,345 lbs
30Acrylonitrile107-13-12,224 lbs0 lbs2,224 lbs
31o-Cresol95-48-71,985 lbs0 lbs1,985 lbs
32Propylene oxide75-56-91,829 lbs0 lbs1,829 lbs
33Formic acid64-18-61,406 lbs0 lbs1,406 lbs
34Manganese compoundsN4501,064 lbs0 lbs1,064 lbs
35Maleic anhydride108-31-61,046 lbs0 lbs1,046 lbs
36Diethanolamine111-42-2600 lbs0 lbs600 lbs
37Aluminum (fume or dust)7429-90-5487 lbs0 lbs487 lbs
38Lead compoundsN420288 lbs22 lbs309 lbs
39Manganese And Manganese CompoundsN450309 lbs0 lbs309 lbs
40Hydrogen fluoride7664-39-3229 lbs0 lbs299 lbs
411,2-Dibromoethane106-93-4133 lbs0 lbs133 lbs
421,2-Dichloroethane107-06-2127 lbs0 lbs127 lbs
43Diphenylamine122-39-4126 lbs0 lbs126 lbs
44Nickel7440-02-0120 lbs0 lbs120 lbs
45Lead And Lead CompoundsN42055 lbs22 lbs78 lbs
46Manganese7439-96-570 lbs0 lbs70 lbs
47C.I. Food Red 1581-88-940 lbs0 lbs40 lbs
48Chromium7440-47-340 lbs0 lbs40 lbs
49Mercury7439-97-630 lbs0 lbs30 lbs
50Polycyclic aromatic compoundsN59024 lbs2 lbs26 lbs
51Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N09011 lbs0 lbs11 lbs
52Methyl tert-butyl ether1634-04-42 lbs5 lbs10 lbs
53Benzo[g,h,i]perylene191-24-23 lbs0 lbs3 lbs
54Mercury And Mercury CompoundsN4581 lbs0 lbs1 lbs
📋
Top chemicals released near this property (2024 only):
Ethylene, Ammonia, Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Methanol, n-Hexane
View the full list of 41 chemicals reported within 2 miles for 2024.
Chemicals Released (2024 Only)(41 chemicals)
#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Ethylene74-85-1115,179 lbs0 lbs115,179 lbs
2Ammonia7664-41-782,811 lbs93 lbs82,904 lbs
3Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-917,341 lbs0 lbs17,341 lbs
4Methanol67-56-115,808 lbs0 lbs15,808 lbs
5n-Hexane110-54-315,513 lbs0 lbs15,546 lbs
6Xylene (mixed isomers)1330-20-78,835 lbs15 lbs9,062 lbs
7Toluene108-88-36,323 lbs5 lbs6,346 lbs
8Vinyl acetate108-05-45,850 lbs0 lbs5,850 lbs
91,2,4-Trimethylbenzene95-63-65,040 lbs0 lbs5,178 lbs
10Benzene71-43-24,302 lbs4 lbs4,319 lbs
11Phenol108-95-22,206 lbs0 lbs2,206 lbs
12Ethylbenzene100-41-41,688 lbs7 lbs1,728 lbs
131,3-Butadiene106-99-01,251 lbs0 lbs1,251 lbs
14Boron trifluoride7637-07-21,178 lbs0 lbs1,178 lbs
15Zinc compoundsN982678 lbs476 lbs1,154 lbs
16Propylene115-07-11,119 lbs0 lbs1,119 lbs
17Hydrogen sulfide7783-06-4923 lbs0 lbs923 lbs
18Dimethylamine124-40-3864 lbs0 lbs864 lbs
19Naphthalene91-20-3728 lbs1 lbs747 lbs
20Ethylene glycol107-21-1530 lbs0 lbs530 lbs
21Chlorine7782-50-5512 lbs0 lbs512 lbs
22Cumene98-82-8446 lbs0 lbs447 lbs
23Cyclohexane110-82-7355 lbs0 lbs373 lbs
24Formaldehyde50-00-0354 lbs0 lbs354 lbs
25Acrylonitrile107-13-1278 lbs0 lbs278 lbs
26Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-0265 lbs0 lbs265 lbs
27Propylene oxide75-56-9255 lbs0 lbs255 lbs
28Formic acid64-18-6189 lbs0 lbs189 lbs
29Maleic anhydride108-31-6132 lbs0 lbs132 lbs
30o-Cresol95-48-788 lbs0 lbs88 lbs
31Acetaldehyde75-07-045 lbs0 lbs45 lbs
32Manganese7439-96-530 lbs0 lbs30 lbs
33Chromium7440-47-325 lbs0 lbs25 lbs
34Nickel7440-02-024 lbs0 lbs24 lbs
35Diphenylamine122-39-423 lbs0 lbs23 lbs
36Certain glycol ethersN23011 lbs0 lbs11 lbs
37Diethanolamine111-42-210 lbs0 lbs10 lbs
38Lead And Lead CompoundsN4208 lbs1 lbs9 lbs
391,2-Dibromoethane106-93-44 lbs0 lbs4 lbs
40Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0901 lbs0 lbs1 lbs
41Polycyclic aromatic compoundsN5900 lbs0 lbs1 lbs
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