Data-driven insights for local properties

Complete Property Analysis

Environmental risk, tax analysis, and property details for 919 Davis St 4, Pasadena, Tx 77506

HCAD #0720800000004
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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
919 Davis St 4, Pasadena, Tx 77506
Elevation
27.52 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)
37.36 ft
Water surface elevation relative to sea level (NAVD88 datum).
Area Inundated
279.1 acres
94.6% of 500m radius flooded.
Nearest Bayou Stage
N/A
No nearby bayou within monitoring range
Depth-Damage (HCAD Valuation)
$66,995
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
22.8th percentile
Property Pollution Ranking
High
Higher pollution than 77% of Houston homes
Compares pollution within 2mi against 10,000 Houston properties. Lower percentiles = higher pollution.
Industrial Pollution Nearby (10 Years)
591 thousandlbs
Very High
90.6x more than typical Houston property
≈ 30 dump trucks of chemicals within 2 miles
Air Pollution (10 Years)
591 thousandlbs
Extremely High
122.5x more than typical Houston property
Includes fugitive emissions (leaks) and stack emissions (smokestacks).
Water Pollution (10 Years)
463lbs
High
Discharges to bayous, streams, and drainage systems.
Facilities Nearby
6
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)591,351 lbs590,888 lbs463 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)43,513 lbs43,498 lbs15 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 77% of Houston homes
Each bar's width represents the percentage of Houston homes in that pollution range. This property ranks in the 20-29th percentile.
📋
Top chemicals released near this property (past 10 years):
Methanol, Ammonia, Vinyl acetate, Xylene (mixed isomers), Toluene
View the full list of 31 chemicals below.
Chemicals Released (2014-2024, 10-Year Total)(31 chemicals)
#ChemicalCAS#Air (lbs/10yr)Water (lbs/10yr)Total (lbs/10yr)
1Methanol67-56-1267,145 lbs0 lbs267,145 lbs
2Ammonia7664-41-792,863 lbs0 lbs92,863 lbs
3Vinyl acetate108-05-470,754 lbs0 lbs70,754 lbs
4Xylene (mixed isomers)1330-20-742,450 lbs33 lbs42,492 lbs
5Toluene108-88-329,713 lbs27 lbs29,749 lbs
61,2,4-Trimethylbenzene95-63-621,872 lbs105 lbs21,980 lbs
7n-Hexane110-54-318,945 lbs170 lbs19,116 lbs
8Benzene71-43-211,221 lbs24 lbs11,247 lbs
9Dimethylamine124-40-36,912 lbs0 lbs6,912 lbs
10Acetaldehyde75-07-06,116 lbs0 lbs6,116 lbs
11Ethylbenzene100-41-45,951 lbs22 lbs5,975 lbs
12Ethylene glycol107-21-15,553 lbs0 lbs5,553 lbs
13Formaldehyde50-00-02,284 lbs0 lbs2,284 lbs
14Acrylonitrile107-13-12,224 lbs0 lbs2,224 lbs
15Propylene oxide75-56-91,829 lbs0 lbs1,829 lbs
16Formic acid64-18-61,406 lbs0 lbs1,406 lbs
17Cyclohexane110-82-7995 lbs0 lbs995 lbs
18Phenol108-95-2815 lbs0 lbs815 lbs
19Diethanolamine111-42-2600 lbs0 lbs600 lbs
20Naphthalene91-20-3517 lbs21 lbs539 lbs
21Cumene98-82-8353 lbs10 lbs364 lbs
22Nickel7440-02-0120 lbs0 lbs120 lbs
23Certain glycol ethersN23092 lbs0 lbs92 lbs
24Manganese7439-96-570 lbs0 lbs70 lbs
25Chromium7440-47-340 lbs0 lbs40 lbs
26C.I. Food Red 1581-88-940 lbs0 lbs40 lbs
27Lead And Lead CompoundsN4203 lbs22 lbs25 lbs
28Lead compoundsN4201 lbs22 lbs22 lbs
29Methyl tert-butyl ether1634-04-42 lbs5 lbs10 lbs
30Polycyclic aromatic compoundsN5902 lbs2 lbs4 lbs
31Mercury And Mercury CompoundsN4581 lbs0 lbs1 lbs
📋
Top chemicals released near this property (2024 only):
Methanol, Ammonia, Vinyl acetate, Xylene (mixed isomers), Toluene
View the full list of 27 chemicals reported within 2 miles for 2024.
Chemicals Released (2024 Only)(27 chemicals)
#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Methanol67-56-115,730 lbs0 lbs15,730 lbs
2Ammonia7664-41-76,678 lbs0 lbs6,678 lbs
3Vinyl acetate108-05-45,850 lbs0 lbs5,850 lbs
4Xylene (mixed isomers)1330-20-73,290 lbs5 lbs3,295 lbs
5Toluene108-88-32,900 lbs3 lbs2,903 lbs
6n-Hexane110-54-32,320 lbs0 lbs2,320 lbs
71,2,4-Trimethylbenzene95-63-62,100 lbs0 lbs2,100 lbs
8Benzene71-43-21,130 lbs2 lbs1,132 lbs
9Dimethylamine124-40-3864 lbs0 lbs864 lbs
10Ethylene glycol107-21-1529 lbs0 lbs529 lbs
11Ethylbenzene100-41-4427 lbs3 lbs430 lbs
12Acrylonitrile107-13-1278 lbs0 lbs278 lbs
13Propylene oxide75-56-9255 lbs0 lbs255 lbs
14Formaldehyde50-00-0255 lbs0 lbs255 lbs
15Phenol108-95-2255 lbs0 lbs255 lbs
16Cyclohexane110-82-7232 lbs0 lbs232 lbs
17Formic acid64-18-6189 lbs0 lbs189 lbs
18Naphthalene91-20-346 lbs1 lbs47 lbs
19Acetaldehyde75-07-045 lbs0 lbs45 lbs
20Manganese7439-96-530 lbs0 lbs30 lbs
21Chromium7440-47-325 lbs0 lbs25 lbs
22Nickel7440-02-024 lbs0 lbs24 lbs
23Cumene98-82-824 lbs0 lbs24 lbs
24Certain glycol ethersN23011 lbs0 lbs11 lbs
25Diethanolamine111-42-210 lbs0 lbs10 lbs
26Lead And Lead CompoundsN4201 lbs1 lbs1 lbs
27Polycyclic aromatic compoundsN5900 lbs0 lbs1 lbs
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