Data-driven insights for local properties

Complete Property Analysis

Environmental risk, tax analysis, and property details for 1000 Ethyl Rd, Pasadena, TX 77503

HCAD #0402180010129
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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
1000 Ethyl Rd, Pasadena, TX 77503
Elevation
10.13 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)
19.97 ft
Water surface elevation relative to sea level (NAVD88 datum).
Area Inundated
294.9 acres
100.0% 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
10.5th percentile
Property Pollution Ranking
High
Higher pollution than 90% of Houston homes
Compares pollution within 2mi against 10,000 Houston properties. Lower percentiles = higher pollution.
Industrial Pollution Nearby (10 Years)
7.35 millionlbs
Extremely High
1126.7x more than typical Houston property
≈ 368 dump trucks of chemicals within 2 miles
Air Pollution (10 Years)
6.23 millionlbs
Extremely High
1291.6x more than typical Houston property
Includes fugitive emissions (leaks) and stack emissions (smokestacks).
Water Pollution (10 Years)
1.12 millionlbs
Extremely High
Discharges to bayous, streams, and drainage systems.
Facilities Nearby
25
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)7,350,957 lbs6,228,739 lbs1,122,218 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)710,427 lbs625,489 lbs75,362 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 90% 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):
m-Cresol, 2,4-Dimethylphenol, p-Cresol, o-Cresol, Ethylene
View the full list of 75 chemicals below.
Chemicals Released (2014-2024, 10-Year Total)(75 chemicals)
#ChemicalCAS#Air (lbs/10yr)Water (lbs/10yr)Total (lbs/10yr)
1m-Cresol108-39-445,935 lbs6,586 lbs5,666,444 lbs
22,4-Dimethylphenol105-67-913,055 lbs965 lbs4,229,319 lbs
3p-Cresol106-44-538,298 lbs3,292 lbs3,009,676 lbs
4o-Cresol95-48-727,446 lbs1,579 lbs1,767,181 lbs
5Ethylene74-85-11,557,991 lbs0 lbs1,557,991 lbs
6Phenol108-95-230,598 lbs3,108 lbs1,064,358 lbs
7Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs1,038,744 lbs1,038,744 lbs
8Ammonia7664-41-7691,611 lbs39,739 lbs731,350 lbs
9Cumene98-82-8517,706 lbs1 lbs517,707 lbs
10n-Hexane110-54-3507,038 lbs51 lbs507,129 lbs
11Ethylene glycol107-21-1344,703 lbs0 lbs344,703 lbs
12Propylene115-07-1289,050 lbs0 lbs289,050 lbs
13Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-9278,374 lbs0 lbs278,374 lbs
14Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-0213,345 lbs0 lbs213,345 lbs
15Acetophenone98-86-2206,492 lbs3,645 lbs210,136 lbs
16Methanol67-56-1187,515 lbs7,563 lbs195,078 lbs
17Benzene71-43-2167,699 lbs3 lbs167,702 lbs
18Vinyl chloride75-01-4166,976 lbs14 lbs166,990 lbs
19Aluminum (fume or dust)7429-90-5133,040 lbs0 lbs133,050 lbs
20Chlorine7782-50-5103,233 lbs0 lbs103,238 lbs
21Acetaldehyde75-07-092,740 lbs3,956 lbs96,696 lbs
22Toluene108-88-377,138 lbs530 lbs78,280 lbs
23Styrene100-42-559,223 lbs0 lbs59,223 lbs
24Chlorodifluoromethane (HCFC-22)75-45-646,271 lbs0 lbs46,271 lbs
25Certain glycol ethersN23037,995 lbs0 lbs37,995 lbs
26Hydrogen sulfide7783-06-431,340 lbs0 lbs31,340 lbs
27o-Toluidine95-53-429,521 lbs51 lbs30,113 lbs
28Chlorothalonil1897-45-629,974 lbs83 lbs30,057 lbs
29Xylene (mixed isomers)1330-20-728,872 lbs0 lbs28,872 lbs
30Isobutyraldehyde78-84-228,404 lbs0 lbs28,404 lbs
31Carbon disulfide75-15-027,720 lbs0 lbs27,720 lbs
32Cyclohexane110-82-723,921 lbs51 lbs24,022 lbs
33Butyraldehyde123-72-823,130 lbs0 lbs23,130 lbs
341,2,4-Trimethylbenzene95-63-619,432 lbs0 lbs19,432 lbs
35Zinc compoundsN98210,410 lbs6,866 lbs17,290 lbs
36Chloromethane74-87-315,422 lbs31 lbs15,478 lbs
37Boron trifluoride7637-07-214,843 lbs0 lbs14,843 lbs
38Chloroethane75-00-314,708 lbs41 lbs14,784 lbs
39Carbon tetrachloride56-23-514,345 lbs12 lbs14,358 lbs
40Diaminotoluene (mixed isomers)25376-45-812,695 lbs51 lbs12,797 lbs
41m-Xylene108-38-311,963 lbs54 lbs12,017 lbs
42Ethylbenzene100-41-411,812 lbs0 lbs11,812 lbs
43Vanadium compoundsN7706,236 lbs2,153 lbs8,389 lbs
44Aniline62-53-36,824 lbs25 lbs7,119 lbs
45Biphenyl92-52-46,522 lbs15 lbs6,552 lbs
46n-Butyl alcohol71-36-34,032 lbs0 lbs4,032 lbs
47Phthalic anhydride85-44-93,729 lbs0 lbs3,729 lbs
48Hydrogen cyanide74-90-83,231 lbs0 lbs3,231 lbs
49Manganese compoundsN4502,054 lbs262 lbs2,316 lbs
50Manganese7439-96-51,668 lbs543 lbs2,211 lbs
51Chromium7440-47-31,182 lbs925 lbs2,106 lbs
52Maleic anhydride108-31-61,825 lbs0 lbs1,825 lbs
53Nickel7440-02-0974 lbs543 lbs1,517 lbs
54o-Xylene95-47-61,330 lbs0 lbs1,330 lbs
551,3-Butadiene106-99-01,064 lbs0 lbs1,064 lbs
56Formaldehyde50-00-01,061 lbs0 lbs1,061 lbs
57Formic acid64-18-61,012 lbs0 lbs1,012 lbs
58Hexachlorobenzene118-74-11,002 lbs1 lbs1,003 lbs
59Chromium compounds (except for chromite ore mined in the Transvaal Region)N090410 lbs417 lbs828 lbs
60Nickel compoundsN495443 lbs250 lbs694 lbs
61Naphthalene91-20-3525 lbs0 lbs525 lbs
62Lead compoundsN420290 lbs23 lbs315 lbs
63Manganese And Manganese CompoundsN450309 lbs0 lbs309 lbs
64Cobalt7440-48-4250 lbs0 lbs250 lbs
65Copper7440-50-8250 lbs0 lbs250 lbs
661,2-Dibromoethane106-93-4133 lbs0 lbs133 lbs
671,2-Dichloroethane107-06-2127 lbs0 lbs127 lbs
68Diphenylamine122-39-4126 lbs0 lbs126 lbs
69Lead And Lead CompoundsN42054 lbs24 lbs78 lbs
70Dioxin and dioxin-like compoundsN15039 lbs0 lbs39 lbs
71Nitric acid7697-37-228 lbs0 lbs28 lbs
72Lead7439-92-14 lbs20 lbs23 lbs
73Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N09011 lbs0 lbs11 lbs
74Nonylphenol EthoxylatesN53510 lbs0 lbs10 lbs
75Mercury7439-97-60 lbs0 lbs2 lbs
📋
Top chemicals released near this property (2024 only):
Ethylene, Ethylene glycol, Ammonia, Nitrate compounds (water dissociable; reportable only when in aqueous solution), Propylene
View the full list of 50 chemicals reported within 2 miles for 2024.
Chemicals Released (2024 Only)(50 chemicals)
#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Ethylene74-85-1159,132 lbs0 lbs159,132 lbs
2Ethylene glycol107-21-1111,462 lbs0 lbs111,462 lbs
3Ammonia7664-41-776,682 lbs93 lbs76,775 lbs
4Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs72,435 lbs72,435 lbs
5Propylene115-07-157,757 lbs0 lbs57,757 lbs
6Cumene98-82-834,977 lbs0 lbs34,977 lbs
7Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-020,007 lbs0 lbs20,007 lbs
8Benzene71-43-218,400 lbs0 lbs18,400 lbs
9n-Hexane110-54-318,140 lbs5 lbs18,150 lbs
10Acetophenone98-86-217,719 lbs350 lbs18,069 lbs
11Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-917,341 lbs0 lbs17,341 lbs
12Aluminum (fume or dust)7429-90-513,724 lbs0 lbs13,724 lbs
13Vinyl chloride75-01-413,207 lbs1 lbs13,208 lbs
14Acetaldehyde75-07-08,300 lbs380 lbs8,680 lbs
15m-Cresol108-39-45,580 lbs416 lbs7,579 lbs
16Phenol108-95-26,849 lbs151 lbs7,377 lbs
172,4-Dimethylphenol105-67-91,591 lbs64 lbs7,241 lbs
18p-Cresol106-44-54,895 lbs208 lbs5,894 lbs
19Methanol67-56-14,673 lbs336 lbs5,009 lbs
20Isobutyraldehyde78-84-24,431 lbs0 lbs4,431 lbs
21o-Cresol95-48-73,280 lbs103 lbs4,025 lbs
22o-Toluidine95-53-44,008 lbs5 lbs4,018 lbs
23Cyclohexane110-82-72,839 lbs5 lbs2,849 lbs
24Hydrogen sulfide7783-06-42,619 lbs0 lbs2,619 lbs
25Butyraldehyde123-72-82,507 lbs0 lbs2,507 lbs
26Chloroethane75-00-32,102 lbs5 lbs2,107 lbs
271,2,4-Trimethylbenzene95-63-61,978 lbs0 lbs1,978 lbs
28Chloromethane74-87-31,938 lbs5 lbs1,943 lbs
29Carbon disulfide75-15-01,835 lbs0 lbs1,835 lbs
30Diaminotoluene (mixed isomers)25376-45-81,821 lbs5 lbs1,831 lbs
31Boron trifluoride7637-07-21,178 lbs0 lbs1,178 lbs
32Zinc compoundsN982678 lbs476 lbs1,154 lbs
33Toluene108-88-3516 lbs0 lbs1,092 lbs
34Chlorine7782-50-5925 lbs0 lbs925 lbs
35n-Butyl alcohol71-36-3638 lbs0 lbs638 lbs
36Xylene (mixed isomers)1330-20-7477 lbs0 lbs477 lbs
371,3-Butadiene106-99-0295 lbs0 lbs295 lbs
38Manganese7439-96-5162 lbs86 lbs248 lbs
39Chromium7440-47-371 lbs144 lbs215 lbs
40Certain glycol ethersN230214 lbs0 lbs214 lbs
41Formic acid64-18-6173 lbs0 lbs173 lbs
42Maleic anhydride108-31-6132 lbs0 lbs132 lbs
43Nickel7440-02-018 lbs86 lbs104 lbs
44Formaldehyde50-00-099 lbs0 lbs99 lbs
45Naphthalene91-20-386 lbs0 lbs86 lbs
46Diphenylamine122-39-423 lbs0 lbs23 lbs
47Lead And Lead CompoundsN4207 lbs0 lbs7 lbs
481,2-Dibromoethane106-93-44 lbs0 lbs4 lbs
49Lead compoundsN4200 lbs3 lbs3 lbs
50Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0901 lbs0 lbs1 lbs
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