ML20151U708

Monitoring of Lng & Liquified Petrolium Gas Shipping & Const Activities on Delaware River

ML20151U708
Person / Time
Site:	Hope Creek
Issue date:	01/31/1986
From:	Public Service Enterprise Group
To:
Shared Package
ML20151U702	List: ML20151U697 ML20151U708 ML20151U730
References
NUDOCS 8602110087
Download: ML20151U708 (4)

Text

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HOPE CREEK GENERATING' STATION

. MONITORING OF-LNG AND LPG SHIPPING AND CONSTRUCTION ACTIVITIES ON THE DELAWARE RIVER PREPARED IN RESPONSE TO:

AMENDMENT NO. 5 CONSTRUCTION PERMIT NO. CPPR120 PUBLIC SERVICE ELECTRIC AND GAS COMPANY 80 PARK PLAZA NEWARK, NEW JERSEY 07101 l

4 khofk h5 y4 Docket Nos. 50-354 hhh l A i'

January 1986 N -. >

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, ' TABLE OF CONTENTS

1.

SUMMARY

- 2 ~.' INTRODUCTION

3. YEARLY REPORT

'3.1. Total' Number'of Ships Per Year

3. 2' Construction Activity 3.3 Conclusions 6

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1.

SUMMARY

On November 4, 1974, the Atomic. Energy Commission issued a Construction Permit (CP) for the construction of.the Hope Creek Generating Station in Salem County, New Jersey.

The Hope Creek site is located on the Delaware River estuary near the ' southern end of an artificial peninsula known as Artificial Island.

-Amendment No'. 5 to the Construction Permit requires PSE&G to monitor activities related to the shipment of liquefied natural gas (LNG) and liquefied petroleum gas (LPG) on the Delaware River. This monitoring includes shipping rates of liquefied flammable gases and various types of construction activity. The chemicals classi-fled as liquefied flammable gases are propane, butane, butadiene, vinyl chloride and liquefied natural gas.

The results of this study show that total shipping activities of interest have decreased slightly from 1983; and that no new or proposed construction which.

could have an affect on the probability calculations has apparently been authorized.

2. INTRODUCTION The activities of interest are those which might resul t in an increased rate of shipping or which could cause an increased probability of accident occurrence.

An increase in the shipping rate may occur when an existing facility increase its importation rate or constructs new storage or refining facilities. PSE&G has-monitored these events by keeping in touch with local authorities, contacting those refineries and import terminals on the Delaware River which are capable of receiving liquid fuels and by reviewing the monthly "Public Notices" for 1984 issued by the Department of the Army " Philadelphia District, Corps of Enginiers."

Although there is currently no LNG shipping on the Delaware River, there have been proposals in the past to initiate such shipping. All have either been withdrawn or rejected by the Federal Energy Regulatory Commission (FERC). Consequently, there are currently no outstanding proposals for an LNG f acility that could M P86 06/13 3-dh

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possibly af fect the Hope Creek Generating Sta' tion.

PSEEG is continuously monitoring the applications

-received by FERC relating to LNG terminals.

Other types -of construction activities on the Delaware

. River may alsoLresult in an. increased risk to the Hope Creek Generating Station. It has.been estimated (PSE&G, Dockets 50-354 and 50-355.before the'NRC, exhibits 9, 10, 11) that a flammable vapor cloud whichiforms as.a result of an accidental spill of a liqu'id fuel on-water.

couldl travel up to 12 miles. Therefore, any spill occurring within a , distance of -12. miles up or. downstream

. of. Hope Creek has to be analyzed to determine if it

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presents a potential hazard to' the plant. Currently, with. the exception of Tower 97* and a submerged shipwreck, there are no'rammable objectsfin the vicinity of the . shipping channel near Hope Creek. However,.in-the future, docks, jetties, moorings, piles, or other potential obstructions could be constructed in the .

river. ' Therefore,- PSE&G is monitoring construction activity of this type.

The calculation of the probability of a flammable cloud -

reaching Hope. Creek is made on a biannual' basis. 'It was last calculated for ' the calendar year 1983 'and reported in our submission dated April 19, 1985..

The probability calculation.is based on a series of conditional. probabilities. These probabilities involve -

~t he expected number of accidents per mile of river transit, .the probability that a spill will result given that an-accident has occurred, the probability that a vapor cloud will form given that there has been a spill, and ' the meteorological f actor.

The NRC has established guidelines for the acceptable

- upper limit of . the probability that the Hope Creek Generating. Station will be af fected by a flammable vapor cloud formed as a result of an accident on the river.

In an estimate in which the factors are determined based on conservative approximations, the number of incidents cannot exceed 10 6 per year.

• Electrical Transmission Line Tower M P86~06/13 4-dh

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