ML19329A413

Proposed Changes to Tech Specs 1.2B,App B, Chemical Discharge Limits.

ML19329A413
Person / Time
Site:	Oconee
Issue date:	12/13/1973
From:	DUKE POWER CO.
To:
Shared Package
ML19329A410	List: ML19329A409 ML19329A413
References
NUDOCS 8001030983
Download: ML19329A413 (2)

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-5 C) 1.2 CHEMICAL DISCHARGE LIMITS .

Obiective: To insure that all chemical releases from the station are y controlled and diluted so as to be non-toxic to aquatic organisms in Hartwell Reservoir.

Applicability:

• Applies to release of chemical effluents from the station.

Specification: A. Chemical wastes and the resulting chemical concentra- '

tions in the Keowee River shall not exceed the maximum concentrations given in Table 1.2-1 " Chemical Wastes from Oconee Station."

B. The discharge to the Keowee River from the vaste -

water collection basin and associated drainage shall have a pH between 6.0 and 8.5. The pH shall be deter-mined daily from a representative sample collected from the combined effluent stream before it discharges to the river.

C. Chlorine or other chemical b2.ocides will not be used for condenser cleaning. .

Monitoring: A. The pH and specific conductance of the wastewater col-1ection basin effluent shall be determined and recorded daily.

B. A chemical inventory system shall be maintained to show the quantities used for each chemical in Table 1.2-1 and for any other environmentally significant chemicals which may be used. A combination of purchasing records and physical inves.ttories shall be used to determine chemical usage.

Bases: Continuous dilution of the station chemical discharges

. will assure that concentrations of chemical effluents are maintained at low values. Table 1.2-1 is the same as Table III-14 in the Oconee 1, 2, ar.d 3 Final Environmental Statement.

Requiring that the effluents result in chemical concentrations which are not toxic assures that aquatic organisms are protected.

Records of chemical usage plus sampling of effluent wastewater are used to monitor the quantity and strength of chemicals discharged.

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w . 4 tan 3.2 8. Ossuel weesas frees Omoose Musier *m Emmanlaing gang;entratson in '

M 88' 788' O '8"W Kenwes River water lopmp duuan OfQ Mmmum posable,

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Easter coolaat ,

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Lashanas hydroside 180 d 4 ,

Mydrassas 300 e e samme senerstor feed ==sar '

Mydramas N13.000 e e Eageneration of deboratirig demaneralaasts Seduse hydroside 4.100 f f Eageneration of water treatment denuneraliases Sedasm hydeomide ' 440.000 0.128 4#

3elfinns acid 150.500 0.06s" 2M .

. Laiendry and sicanms detergents Heer slaanmg !!aqudl 10.000 0.004M G.1/

Lameday (solds 4.760 0.001f (Lost' 8 3 -

• Total per year diluted by awrage tadraus flow of 1100 cfs 89.823 x 10 " cm h ear).

., heemt per year dduisd by manimum tailrass slow of 30 sfa.

kost will probably be removed by the demineralizers and evaporators l

1. l Neswially, hydrazine is reacted chemicaily and na not dimaarged.

,l ostti of this material mall be unt to the waste drumming fautsty as evaporator bottoms. (

85edium releawd. Keo.ee River norman con 6:ntration is 1.2 1.3 ppm (G. A. Billingscy. " Chemical Character of Surfase waters of South Caronma. 1945-1955." Sulletm No.163. South Carolina Deveiopmeot aoard.1956i.

"Sistfate rele4wd. Keowee Arver normal conc. is 0.7-2.5 ppm IG. A. Edlingsley. " Chemical Character of Surfacs Waters of South Carolma, 1945-1955." Bulletm No.163. South Carolma Development as.rd.1956).

. bang of these wastes through the sanitary waste system may signis'acantly reduce tha value.

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