ML20042E839

Annual Environ Operating Rept,Jan-Dec 1989.

ML20042E839
Person / Time
Site:	Seabrook
Issue date:	12/31/1989
From:	PUBLIC SERVICE CO. OF NEW HAMPSHIRE
To:
Shared Package
ML20042E838	List: ML20042E837 ML20042E839 ML20042E842 ML20042E850
References
NUDOCS 9005030206
Download: ML20042E839 (4)

Text

'

p -

SEABROOK STATION Annual Environmental Operating Report January 1, 1989 .to December 31, 1989

1. Environmental ~ Studies Program The Preoperational Environmental' Studies Program at Seabrook Station spans the period for 1975 to June 13.-1989. From June 13, 1989, to June 22, 1989, Seabrook Station conducted its Low Power Testing i Program. Therefore..from June 13, 1989, to December 31, 1989, the Environmental Studies Program is considered postoperational.

Attachment 1 to this enclosure is Technical Report XX.II, which summarizes environmental data results from 1975 through 1988. A summariaation report for 1989;is not yet available but will'be forwarded as part of the 1990 submittal. Attachment 2 to this-enclosure (Technical Report XX-I) is the summariaation report for 1988.

2. Environmental Protection Plan Activities for Reoortina Period Aoustic Monitorinn No reports for 1989 were generated.

Terrestrial Monitorina Not applicable.

Noise Monitorinn -

Not applicable.

3. EPP Nop-Comoliance and Corrective Actions Thore were 20 exceptions noted and reported in the Seabrook Station 1

Discharge Monitoring Reports (DMRs) for the period (January'- December 1989). A summary description of those exceedances is provided below.

The number in parentheses indicates the number of exceedances reported each month.

1989 Exceedance Summary Exceedance Comments January L

None February Turbidity (1) Heavy rains and ensuing runoff.

March 1

None voodO30206 y00430 PDR ADOCK 05000443 ,.

R PDC i

e.

New Hampshire Yankee ,

April 30, 1990' )

Page 2  ;

i

.)

1989 Exceedance Summary (continued) [

l Exceedance Comments 4 l 1

Anill .

.l Chlorine (2) Heavy raine resulting in cooling tower .i '

overflow (daily maximum and month average limits exceeded).

Coliform (2) Sewage treatment' plant in abnormal  !

condition due to aeration pipe replacement in Lagoon No. 1 (daily and i weekly limits exceeded).

~

BLE  !

None  ;

2nat j None lukt  ;

c pH (1) Large algal growth followed by heavy  :

rains and overflow.'

• l l

Aunust  ;

pH (1) Failed gasket' materia'1.at settling basin due to heavy rains along with algal l bloom. ,

Coliform (2) Suspected malfunction of chlorine tank'  !

(daily and weekly limits = exceeded').-

sentember ,

Coliform (2) High chlorine demand from algal bloom  !

and possible concealed coliform (daily and weekly limits exceeded).-  :

Turbidity (1) Heavy rains and ensuing runoff.

pH (3) High algal growth followed by heavy-rains. ,

Chlorine (1) Probable electrical malfunction between' l' the chlorine analyzer and the pump ,

controller.

1

i b

F ;p>

u I

New Hampshire Yankee i April 30. 1990

'Page 3 l

-i i

1989 Exceedence. Summary (continued) [

i

.i r

Exceedance Comments . j cetober ,

pH.(3)- Algal blooms followed by heavy rains. l l

_ November i Turbidity' Heavy' rains and ensuing runoff. i December- j None' }

4. Channes to Plant Deslan or Operation  ;

Attachment 3 to this' enclosure is s' request for modifications to the ~

'Seabrook Station NPDES Termit. Attachment 4 to this enclosure is the .

. United States Environmental Protection Agency (U.S.E.P.A.): response to  !

that request. [

5. Non-Routine ,

-l There were no non-routine reports generated-during this reporting ,

period.  !

t i

E I

s

-)

6 i

B 9

v u-- <- r , , 4

7 New Hampshire Yankee April 30, 1990 ATTACIMENT 1 TO ENCLOSURE 1 TO NYN 90102 l

l SEABROOK STATION I

l Technical Report XX-II I

o i

f

?

e j

l 1

h 4

1 1

l i

f a