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Oil in the Sea III: Inputs, Fates, and Effects (2003)
Ocean Studies Board (OSB)
 Marine Board (MB)
 Transportation Research Board (TRB)

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221
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Oil in the Sea III: Inputs, Fates, and Effects

G
Spills from Coastal Facilities

For this discussion facilities are defined as point sources of spills that are not vessels or oil and gas exploration and production facilities (including crude oil pipelines). Table G-1 lists the types of facilities included in this discussion. The U.S. Coast Guard database of spills greater than 100 gallons for 1990-1999 was used to estimate the amount of oil spilled from facilities (see detailed discussion of spill data used, available at http://www4.nationalacademies.org/dels/annex.nsf). The U.S. Coast Guard defines a facility as a spill source that is not a vessel; therefore the database had to be analyzed to remove spills from oil and gas production facilities. Spills from unknown sources (132 spills totaling 1,060 tonnes) were not included in the analysis because the source could not be determined. The data were sorted geographically to remove spills to inland waters. Also, only spills of refined petroleum products in coastal areas were included (so as to exclude the crude oil spills from the USCG data base that were included in the section on oil and gas exploration and production). As is the pattern for other sources of spills, facility spills greater than 100 gallons over the period 1990-1999 account for 8.5 percent of the number of spills and 98.3 percent of the spill volume.

Based on the U.S. Coast Guard database of spills greater than 100 gallons over the 10-year period from 1990-1999, there was an average of 119 facility spills per year, with an average volume of 14.4 tonnes each. The average annual spill volume from facilities was 1,708 tonnes. Table G-1 shows the distribution of the number and volume of oil spilled by type of facility. Tables 2-2 through 2-6 shows the distribution of the number and volume of oil spilled by zone.

Two types of facilities were the sources of 66 percent of the oil spilled over the 10-year period: coastal pipelines transporting refined products spilled 33 percent, and marine terminals spilled 33 percent. Industrial facilities were the next largest source of spilled oil, with 14.4 percent. The pipeline spill volume was dominated by one spill event in 1994 where 5,500 tonnes (1,616,000 gallons) of gasoline, crude oil, diesel, and jet fuel were spilled (the San Jacinto River spill in Texas). This one spill accounted for 30 percent of all the oil spilled from facilities in the 10-year period. This spill also demonstrates the problem of how to account for oil removal, since a very large fraction of the spilled oil burned.

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221

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OCR for page 221
Oil in the Sea III: Inputs, Fates, and Effects G Spills from Coastal Facilities For this discussion facilities are defined as point sources of spills that are not vessels or oil and gas exploration and production facilities (including crude oil pipelines). Table G-1 lists the types of facilities included in this discussion. The U.S. Coast Guard database of spills greater than 100 gallons for 1990-1999 was used to estimate the amount of oil spilled from facilities (see detailed discussion of spill data used, available at http://www4.nationalacademies.org/dels/annex.nsf). The U.S. Coast Guard defines a facility as a spill source that is not a vessel; therefore the database had to be analyzed to remove spills from oil and gas production facilities. Spills from unknown sources (132 spills totaling 1,060 tonnes) were not included in the analysis because the source could not be determined. The data were sorted geographically to remove spills to inland waters. Also, only spills of refined petroleum products in coastal areas were included (so as to exclude the crude oil spills from the USCG data base that were included in the section on oil and gas exploration and production). As is the pattern for other sources of spills, facility spills greater than 100 gallons over the period 1990-1999 account for 8.5 percent of the number of spills and 98.3 percent of the spill volume. Based on the U.S. Coast Guard database of spills greater than 100 gallons over the 10-year period from 1990-1999, there was an average of 119 facility spills per year, with an average volume of 14.4 tonnes each. The average annual spill volume from facilities was 1,708 tonnes. Table G-1 shows the distribution of the number and volume of oil spilled by type of facility. Tables 2-2 through 2-6 shows the distribution of the number and volume of oil spilled by zone. Two types of facilities were the sources of 66 percent of the oil spilled over the 10-year period: coastal pipelines transporting refined products spilled 33 percent, and marine terminals spilled 33 percent. Industrial facilities were the next largest source of spilled oil, with 14.4 percent. The pipeline spill volume was dominated by one spill event in 1994 where 5,500 tonnes (1,616,000 gallons) of gasoline, crude oil, diesel, and jet fuel were spilled (the San Jacinto River spill in Texas). This one spill accounted for 30 percent of all the oil spilled from facilities in the 10-year period. This spill also demonstrates the problem of how to account for oil removal, since a very large fraction of the spilled oil burned.

OCR for page 222
Oil in the Sea III: Inputs, Fates, and Effects TABLE G-1 Spills from Facilities to Coastal and Marine Waters in the United States, Derived from the U.S. Coastal Guard Data Base for the Period 1990-1999 Spill Source No. of Spills 1990-1999 Total Spill Volume (Tonnes) 1990-1999 Total Spill Volume (Gallons) 1990-1999 Aircraft/Airports 25 156 44,652 Coastal Pipelines (refined products) 48 5,377 1,565,072 Industrial Facilities 409 2,528 690,053 Marinas 26 63 19,343 Marine Terminals 335 5,727 1,590,378 Military Facilities 55 914 259,500 Municipal Facilities 131 1,181 309,594 Reception Facilities 4 11 3,110 Refineries 56 910 255,698 Shipyards 35 72 19,718 Storage Tanks 44 109 31,361 Other 17 36 10,030 Totals 1,185 17,084 4,798,509

Representative terms from entire chapter:

spill volume