ML19347A835
| ML19347A835 | |
| Person / Time | |
|---|---|
| Site: | Prairie Island  |
| Issue date: | 08/26/1980 |
| From: | Lehr J Office of Nuclear Reactor Regulation |
| To: | Martin R Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML19347A834 | List: |
| References | |
| NUDOCS 8009300340 | |
| Download: ML19347A835 (7) | |
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,(e UNIT D STATES Enclosure j
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NOTE T0:
Robert Martin, Licensing Project Manager Licensing Branch # 3, D0L FROM:
John C. Lehr, Senior Environmental Engineer Environmental Engineering Branch, DE Attached are records of recent teltphone conversations that I had in connection with the review of the Northern States Power Company License Amendment Request dated August 21, 1980. In addition to speaking with.the licensee over the proposed change to the Environmental Technical Specifications, I spoke with representatives of the Minnesota Pollution Con l trol Agency and the Minnesota Department of National Resources.
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Attachment:
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Record of Telephone Conversation Date:
8/22/80
Participants:
Don Kriens, Minn. Pollution Control Agency (MPCA) (612-296-7363)
John C. Lehr, U.S. Nuclear Regulatory Commission
Subject:
Proposed Chlorination Program at Prairie Island Nuclear Generating Plant for control of pathogenic amoeba Discussion:
The initial program conducted at the plant for amoeba control was discussed as well as the licensee's proposed plans for future control efforts.
MPCA believes that the initial program was well designed and achieved its purpose.
MPCA has granted approval for the control program proposed to be conducted during the week of August 25, 1980. No consideration has been given by MPCA for a routine chlorination program, even for control of Naeoleria fowleri.
The plant does not have an effective NPDES permit. This control program is not considered in the permit draft.
Adverse impacts on water quality and aquatic biota outside of the plant is not expected because of the successful dechlorination of discharged water during the initial control program.
Chlorinated organics are not considered a problem at this time by MPCA in the plant vicinity.
The relatively large number of fish killed during the initial control program is 5
of concern to MPCA.
They have required Northern States Power to coordinate the upcoming control program with the Minn. Dept. of Natural Resources in an attempt to reduce losses. This problem is expected to be temporary, however, because the licensee will redesign the circulating water system intake and discharge in 1982 in response to ongoing discussions with State officials.
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Record of Telephone Conversation Date: '8/23/80 Pa rticipants :
Karl Bublitz, Minn. Dept. of National Resources John C. Lehr, U.S. Nuclear Regulatory Connission
Subject:
Proposed Chlorination Program at Prairie Island Nuclear Generating Plant for control of pathogenic amoeba g
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Discussion:
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The initial chlorination of the plant circulating water system for control of the pathogenic amoeba, Naegleria fowleri, was discussed in terms of its effects on resident aquatic biota and the need for changes in future chlorinations.to s
mitigate the observed impacts.
It was noted that the copper sulfate dispersant treatment was minimally effective if at all. Additionally, handling of fish between the time the collection method (e.g., electroshocking, seining) is implemented and the time that they are placed v;
on holding areas or released to non-affected areas must be improved if greater survival success is to be achieved.
l The impact on the channel catfish populations in and around the plant cooling system and discharge canal is of concern to MDNR.
For future chlorination programs, some thought should be given to the timing of the program, since the population of channel catfish in the plant system and discharge canal varies considerably with the season of the year. MDNR did not express concern over the number of gizzard shad lost in the initial chlorination program.
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Record of Telephone Conversation Date:
8/25/80 Participant:
Scott Gustafson, Minn. Dept. of Natura1' Resources (MDNR)
John C. Lehr, U.S. Nuclear Regulatory Commission
Subject:
Proposed Chlorination Program at Prairie Island Nuclear Generatir.g Plant for control of pathogenic amoeba Discussion:
The actions.to disperse and collect fish residing in the plant cooling system waters during the initial chlorination program conducted in 1979 were discussed.
MDNR personnel believe that it may not be possible, given the field -techninues presently available, to successfully relocate the fish that would be impacted by chlorination to the Mississippi River. The loss 'of fish during the chlorina-tion program are felt to be lost to the river ecosystem because there is substan-tial interchange between the plant system and the river proper. Therefore, the company will be assessed monitarily for all fish killed during the chlorination programs at the Prairie Island Plant.
MDNR has given verbal approval to Northern States Power Company for the chlorination program, scheduled to be conducted on August 27, 1980.
Impact to the local fishery is not expected to be unacceptable, because plant circulating water temperatures are relatively high at this time of year and therefore the number of fish in the plant system is belisved to be lower than at other times of the year.
Through discussions between MDNR and NSP personnel, it has been agreed that, given the previous lack of success in collecting and transferring live fish from the plant system to -the river, efforts to accomplish this transfer need not be conducted for this chlorination program.
However, NSP will enumerate the numbers and species of fish killed during chlorination and will attempt rescue of distressed fish
. noticed in affected waters and will report the information to MDNR for consideration of procedural changes for future chlorinations. -
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bec J L Eechthold - less att A W Benkusky L W Eberley August 19, 1980 W J Lynch L J Michienzi T K Scherkenbach, Chief J M Pappenfus Compliance E. Enforcement Section J J Pineault E L Watzl Division of Water Quality
[GVWelk C Ward complete Minnesota Pollution Control Agency less att 19 35 West County Road B2 Roseville, tel 55113 At ten tion :
D L Kriens PRAIRIE ISLAND NUCLEAR GENERATING PLANT Chlorination of Circulating Water to EcT.ove Parasitic Amo ba Recent analyses have ccnfirmed the continued presence of the parasitic anoeba, Naeglaria fowleri, in the circulcting water system at the Prairie Island Nuclear Generating Plant.
Popu-lation densities of the anceba are such that it has been deter-ained neccesary to treat the systen to renove the anceba.
The purposa of this letter is to provide specific details of our proposed treatment plan and secure MPCA cpproval for an alteration in the mode of plant operation and the addition of chemicals to the Prairie Island circulating water syctem.
The proposed treatment plan will utilize chlorination and sub-sequent dechlorination prior to dischargp of water from the system.
It is planned to conduct the treatment in the same manner as that performed at Prairie Island on November 21, 1979.
The specifics of that procedure are contained in our letter to the MPCA dated October 25, 1979 in which we requested authoriz.ation to conduct the treatment.
Our letter to the !'PCA dated March 3, 19 80 presents a report on the Novend:er 19 79 treatraent.
Copies of both letters are attached.
We are requesthg authoritation to conduct the test for a one-day pe riod, tentatively set for August 27, 1930.
Depending upon the availability of chemicals and equipn.ent, August 28 or 29, 1980, are back-up dates.
Please contact me at (612) 330-6894 if additional information is required
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R D Clough, Administrator Special Projects ve attachments cc:
Russ Frazier - 101 Dept of Health Houard Krosch-MN Dept of Natural Resources
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h Minnesota Pollution Control Agency August 22, 1980 l
Mr. Robert Clough, Administrator l
Special Projects Northern States Power Company 414 Nicollet Mall Minneapolis, Minnesota 55401 Re: Prairie Island Nuclear Generating Plant i
I Chlorination of Circulating Water to Remove Parasitic Amoeba I
Dear Mr. Clough:
t We have reviewed the proposal to chlorinate the circulating i
water system at the NSP - Prairie Island Nuclear Generating l
Plant.
It is our understanding that chlorination is required-l again this year due to occupational health considerations after confirmation of the continued presence of the pathogenic amoeba, Naegleria fowleri.
Your proposal is to chlorinate and dechlorinate prior to discharge the circulating water i
system in accordance with the procedures as set forth in the l
NSP letter (chlorination plan) to the Minnesota Pollution l
Control Agency (MPCA) of October 25, 1979.
Chlorination-dechlorination will occur under closed cycle mode of operation
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as described under phase II of the chlorination plan.
I MPCA staff approve of this plan for chlorination-dechlorination as described under phase II of the chlorination plan.
We request that you contact the Minnesota Department of Natural Resources and undertake any fish removal they may recommend.
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~Should you have any questions, please contact Don Kriens of my staff at 296-7363.
L Sincerely,
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^f Terry Hoffma Executive' Director TH:grb 296-7301 Phone:
1935 West County Road 82. Roseville, f.hnneso:a 55113 Reg:ena! Omces Duluth.Brainerd'Detrc.: Lakes f.tarru; Roches:er Ecuat 0;pc 1.; tty E: r:3 c-
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..,u Leonard J.
M:chienzi, M.D.,
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'uc 1 *oo General Office Corporate Medical Director F.
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Tierney, Plant Manager
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.d>C C T Based upon our recent discussion of the use of chlorine in water treatment, chlorination should begin at your earliest possible convenience.
I would feel that at sometime during the racnth of I,ugust would be satisfactory.
We can probably discuss a long range program at a later date.
Sincerely, i
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