ML19319A952
| ML19319A952 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 09/01/1976 |
| From: | Parker W DUKE POWER CO. |
| To: | Schwencer A Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML19319A951 | List: |
| References | |
| NUDOCS 7912300231 | |
| Download: ML19319A952 (1) | |
Text
'_
,m, DUKE POWER COMPm
~
'.d
'l Powzu Dunotwo-c 422 Souta Gnuncu STnzzT.CruatoTTz.N.C. ace 4a 1
wtLLIAnd O PARKE88.Jft.
Tatte'toseg:Anta704 373-4083 Sct Pattist*T -
- sigaes PocowcTeo e September'1, 1976 TI LI.e m..)
b SEP7 - 19769 v.s. w oran n e w c u 4
cc-m es b
d M**
,J.; '
hr. Benard C., Rusche, Director M
4 Office of Nuclear Reactor Regulation 7
4
\\
U. S. Nuclear Regulatory Cocmission un Washington, D. C.
20555 Attention:
Mr. A. Schwencer, Chief Operating Reactors Branch No.1 Re: Oconee Nuclear Station Docket Nos. 50-269, -270, -287
Dear Mr. Rusche:
Pursuant to 10CFR50, $50.90, an amendment to the Oconee Nuclear Station Non-Radiological Environmental Technical Specifications, Appendix B to Facility Operating Licenses DPR-38, -47, and -55 is This proposed change revises the method of control of 3
requested.
station chemical ef fluents by instituting a chemical effluent monitoring program.in lieu of the present chemical inventory program.
Replacement pages for the proposed Technical Specification 1.2 are attached,.and an explanation and justification of this change is as follows:
In'accordance with requirements of the present Technical Specification 1.2, ' station chemical inventories are maintained and chemical ef fluent release concentrations are determined by gross annual chemical usages.
Expected annual usage values of various chemicals wue originally
'. proposed.in the Duke Power Company Supplement to Environmental Quality Features of Keowee-Toxaway ' Proj ect, of October, 1971 and were appraised by the NRC in the Oconee Final Environmental Statement of March, 1972.
These values were adopted as limiting chemical usage values and remain as the present' annual chemical release limits as stated in. Table 1.2-1 of Technical Specification 1.2.
It is felt that these values are overly: conservative since they' indicate original expected chemical usages and do not reflect state and federal limitations, nor.do they reflect lan updated reasonable assessment-of expected chemical effluents from Oconee' Nuclear Station.' Also,'the chemical inventory method.is considered-'an ' inaccurate method by which to base determination of concentration limits since large portions of certain
-chemical effluent chemicals may be utilised at the station but not enter the chemical effluent stream.
1 v
6f$6--
O fl918800'O '3 f
3 j
- ~
is2 CllEMICAL DISCHARGE LIMITS.
Obj ective To insure that all chemical releases from the station are controlled so as to be nontoxic to aquatic organisms a.id non-deleterious to downstream water quality -in liartwell Reservoir.
~
Applicability Applies to release of chemical effluents from the station.
Specifica tion A. - Limits for chemical wastes released from the Waste Water Treatment System and the Low Level Radwaste Sys' tem shall not exceed the concen-trations indicated in Table 1.2-1, " Monitoring of Chemical Wastes from,
g
~
Oconce Nuclear Station."
B.
Chlorine or other chemical biocides will not be used for condenser cleaning.
Monitoring The pH, specific conductivity, and concentrations of chemicals to be released from the station shall be monitored as specified in Table 1.2-1.
Reporting Recuirements In the event any of the above specified limits are exceeded, a report shall be made within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> by telephone to the Director of the Regional Regu-i latory Operations Of fice, followed by a written report within one week to the Director of the Regional Inspection and Enforcement Office (cc to Director of Nuclear Reactor Regulation).
The written report and to the extent possible, the preliminary telephone report, will:
(a) describe, analyze and evaluate the occurrence, including entent and magnitude of the impact, (b) describe the cause of the occurrence,
-and (c) -indicate the corrective action (including any significant changes made in procedure)_taken to preclude repetition of the occurrence and to prevent similar occurrences involving similar components or systems.
Bases
^
The chemical monitoring and effluent limits specified in, Tabic 1.2-1 will assure that concentrations of chemical effluents are maintained at levels that will provide adequate protection of aquatic and downstream water qualit The limits specified in Table 1.2-1 are consictent with NPDES regulations (l)y.
State Water Quality Standards (2), Public DrinkiM Water Standards (3), and published toxicity data (4),
} Cf J2 MO DQ.-
Table 1.2-1 Honitoring of Chemical Vastes from Oconce Nuclear Station _
Type Waste Water Trea, ment System Lou Level Rad Waste Syste ::3 Limit Frecuency I
Limit Honitoring Frequency pH Daily 6.0 - 9.0 Specific Daily 500 umho/cm Conductivity Oil T. Crease Twice Per Month 20 ppm Hydrazine Daily 0.7 ppm Prior'to Release 0.1 ppm e
100 ppm Suspended Weekly Solids Prior to Release 1.0 ppm Boron d
Prior to Release 0.05 ppm Phosphor s u
d Prior to Release 0.01 ppm Lithium
- Monitored at-point of release to Hartwell Reservoir.
b All concentration limits for Low Level Radwaste System releases are based on downstrean incremental increases.in concentration.
This' limit is applicable only to station discharges and do s not apply when c
~
excursions beyond this number occur due to rainfall runoff.
d Monitoring is perfor=ed on a weekly frequency from a composite sample obtained from_cach tank discharge.
e e
e p
I f
e t
4 S
6 M
a00 ee
c.
E b'
-s O,
s.
-'g) NPDES, 40CFR Part 423..
- 2) Water Quality criteria, WPCA,1968. -
U)Natiorial Interim Primary Drinking Water Regulations, 40CFR Part 141, December 24, 1975.-
b) Toxicity, of Poder Plant. Chemicals to Aquatic Life, WASH-1249, USAEC, June, 1973.
e e
0 e
ed
- e 0
e t
U e
9
- e e
v e
e e
t 3
q
'I i
+
e y.
e e
o 4
4 4 '.
6 7
UI M
a g
- -m u..
-~h:
?i -
~
'