Data-driven insights for local properties

Complete Property Analysis

Environmental risk, tax analysis, and property details for 1602 N Witter St, Pasadena, TX 77506

HCAD #0281710000005
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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 AE
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
1602 N Witter St, Pasadena, TX 77506
Elevation
14.94 ft
Height above sea level from USGS data.
FEMA Flood Zone
AE
High Risk - 1% annual chance with established base flood elevation
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)
24.78 ft
Water surface elevation relative to sea level (NAVD88 datum).
Area Inundated
260.4 acres
88.3% 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
Special Flood Hazard Area (SFHA): Flood insurance required for federally backed mortgages
#2
Obtain an Elevation Certificate to determine accurate flood insurance premiums
#3
Property elevation currently above simulated flood level
#4
Maintain flood insurance coverage as required in Special Flood Hazard Areas
#5
Review official FEMA Flood Insurance Rate Map (FIRM) for detailed flood zone boundaries
#6
Contact Harris County Flood Control District (HCFCD) for drainage projects and flood information
🏭Industrial Pollution Exposure
11.1th percentile
Property Pollution Ranking
High
Higher pollution than 89% of Houston homes
Compares pollution within 2mi against 10,000 Houston properties. Lower percentiles = higher pollution.
Industrial Pollution Nearby (10 Years)
6.02 millionlbs
Extremely High
922.5x more than typical Houston property
≈ 301 dump trucks of chemicals within 2 miles
Air Pollution (10 Years)
5.97 millionlbs
Extremely High
1238.9x more than typical Houston property
Includes fugitive emissions (leaks) and stack emissions (smokestacks).
Water Pollution (10 Years)
44 thousandlbs
Extremely High
Discharges to bayous, streams, and drainage systems.
Facilities Nearby
24
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)6,018,490 lbs5,974,327 lbs44,163 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)358,298 lbs356,492 lbs957 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 89% 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), Methanol
View the full list of 59 chemicals below.
Chemicals Released (2014-2024, 10-Year Total)(59 chemicals)
#ChemicalCAS#Air (lbs/10yr)Water (lbs/10yr)Total (lbs/10yr)
1Ethylene74-85-11,303,858 lbs0 lbs1,303,858 lbs
2n-Hexane110-54-31,180,670 lbs179 lbs1,181,333 lbs
3Ammonia7664-41-7828,361 lbs33,581 lbs861,942 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
5Methanol67-56-1333,464 lbs0 lbs333,464 lbs
6Propylene115-07-1271,756 lbs0 lbs271,756 lbs
7Xylene (mixed isomers)1330-20-7236,260 lbs147 lbs238,817 lbs
81,3-Butadiene106-99-0232,400 lbs0 lbs232,401 lbs
9Hydrogen cyanide74-90-8213,734 lbs0 lbs213,734 lbs
10Toluene108-88-3189,666 lbs60 lbs190,679 lbs
11n-Butyl alcohol71-36-3137,606 lbs0 lbs137,606 lbs
12Benzene71-43-2114,006 lbs53 lbs114,632 lbs
13Vinyl acetate108-05-470,754 lbs0 lbs70,754 lbs
14Ethylbenzene100-41-446,463 lbs77 lbs47,171 lbs
15Hydrogen sulfide7783-06-437,772 lbs0 lbs37,773 lbs
161,2,4-Trimethylbenzene95-63-632,662 lbs105 lbs33,245 lbs
17Styrene100-42-532,969 lbs0 lbs32,969 lbs
18Propionaldehyde123-38-631,241 lbs0 lbs31,241 lbs
19Cyclohexane110-82-729,731 lbs0 lbs30,491 lbs
20Butyraldehyde123-72-822,150 lbs0 lbs22,150 lbs
21Naphthalene91-20-315,992 lbs21 lbs17,340 lbs
22Dicyclopentadiene77-73-614,013 lbs0 lbs14,013 lbs
23Isoprene78-79-513,272 lbs0 lbs13,272 lbs
24Zinc compoundsN9822,208 lbs6,916 lbs9,124 lbs
25Cumene98-82-87,719 lbs10 lbs7,917 lbs
26Dimethylamine124-40-36,912 lbs0 lbs6,912 lbs
27Acetaldehyde75-07-06,116 lbs0 lbs6,116 lbs
28Ethylene glycol107-21-15,553 lbs0 lbs5,553 lbs
29Biphenyl92-52-44,816 lbs0 lbs5,138 lbs
30Isobutyraldehyde78-84-24,080 lbs0 lbs4,080 lbs
31Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-03,066 lbs0 lbs3,066 lbs
32Formaldehyde50-00-02,284 lbs0 lbs2,284 lbs
33Manganese7439-96-51,738 lbs543 lbs2,281 lbs
34Acrylonitrile107-13-12,224 lbs0 lbs2,224 lbs
35Chromium7440-47-31,222 lbs925 lbs2,146 lbs
36Propylene oxide75-56-91,829 lbs0 lbs1,829 lbs
37Nickel7440-02-01,094 lbs543 lbs1,637 lbs
38Formic acid64-18-61,406 lbs0 lbs1,406 lbs
39Manganese compoundsN450990 lbs262 lbs1,252 lbs
40Chromium compounds (except for chromite ore mined in the Transvaal Region)N090411 lbs417 lbs828 lbs
41Phenol108-95-2815 lbs0 lbs815 lbs
42Nickel compoundsN495443 lbs250 lbs694 lbs
43Diethanolamine111-42-2600 lbs0 lbs600 lbs
44Hydrogen fluoride7664-39-3229 lbs0 lbs299 lbs
45Chlorine7782-50-5273 lbs0 lbs273 lbs
46Cobalt7440-48-4250 lbs0 lbs250 lbs
47Aluminum (fume or dust)7429-90-5250 lbs0 lbs250 lbs
48Copper7440-50-8250 lbs0 lbs250 lbs
49Certain glycol ethersN23092 lbs0 lbs92 lbs
50Polycyclic aromatic compoundsN59047 lbs2 lbs49 lbs
51C.I. Food Red 1581-88-940 lbs0 lbs40 lbs
52Lead And Lead CompoundsN4203 lbs35 lbs37 lbs
53Lead compoundsN4204 lbs33 lbs37 lbs
54Anthracene120-12-731 lbs0 lbs31 lbs
55Mercury7439-97-630 lbs0 lbs30 lbs
56Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N09011 lbs0 lbs11 lbs
57Methyl tert-butyl ether1634-04-42 lbs5 lbs10 lbs
58Benzo[g,h,i]perylene191-24-23 lbs0 lbs3 lbs
59Mercury And Mercury CompoundsN4581 lbs0 lbs1 lbs
📋
Top chemicals released near this property (2024 only):
Ethylene, Ammonia, 1,3-Butadiene, n-Hexane, Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)
View the full list of 38 chemicals reported within 2 miles for 2024.
Chemicals Released (2024 Only)(38 chemicals)
#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Ethylene74-85-1129,645 lbs0 lbs129,645 lbs
2Ammonia7664-41-789,692 lbs93 lbs89,785 lbs
31,3-Butadiene106-99-033,626 lbs0 lbs33,626 lbs
4n-Hexane110-54-322,511 lbs0 lbs22,615 lbs
5Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-917,341 lbs0 lbs17,341 lbs
6Methanol67-56-115,730 lbs0 lbs15,730 lbs
7Xylene (mixed isomers)1330-20-711,981 lbs23 lbs12,287 lbs
8Toluene108-88-39,336 lbs13 lbs9,454 lbs
9Benzene71-43-26,125 lbs6 lbs6,162 lbs
10Vinyl acetate108-05-45,850 lbs0 lbs5,850 lbs
111,2,4-Trimethylbenzene95-63-63,259 lbs0 lbs3,468 lbs
12Isoprene78-79-52,371 lbs0 lbs2,371 lbs
13Ethylbenzene100-41-41,882 lbs15 lbs1,967 lbs
14Propylene115-07-11,202 lbs0 lbs1,202 lbs
15Hydrogen sulfide7783-06-4923 lbs0 lbs923 lbs
16Dimethylamine124-40-3864 lbs0 lbs864 lbs
17Zinc compoundsN982355 lbs481 lbs836 lbs
18Naphthalene91-20-3662 lbs1 lbs686 lbs
19Cyclohexane110-82-7649 lbs0 lbs667 lbs
20Ethylene glycol107-21-1529 lbs0 lbs529 lbs
21Cumene98-82-8296 lbs0 lbs302 lbs
22Manganese7439-96-5192 lbs86 lbs278 lbs
23Acrylonitrile107-13-1278 lbs0 lbs278 lbs
24Formaldehyde50-00-0255 lbs0 lbs255 lbs
25Phenol108-95-2255 lbs0 lbs255 lbs
26Propylene oxide75-56-9255 lbs0 lbs255 lbs
27Chromium7440-47-396 lbs144 lbs240 lbs
28Formic acid64-18-6189 lbs0 lbs189 lbs
29Nickel7440-02-042 lbs86 lbs128 lbs
30Acetaldehyde75-07-045 lbs0 lbs45 lbs
31Chlorine7782-50-525 lbs0 lbs25 lbs
32Certain glycol ethersN23011 lbs0 lbs11 lbs
33Diethanolamine111-42-210 lbs0 lbs10 lbs
34Styrene100-42-57 lbs0 lbs7 lbs
35Lead And Lead CompoundsN4201 lbs6 lbs6 lbs
36Lead compoundsN4200 lbs3 lbs3 lbs
37Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0901 lbs0 lbs1 lbs
38Polycyclic aromatic compoundsN5900 lbs0 lbs1 lbs
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