ML20128F812
| ML20128F812 | |
| Person / Time | |
|---|---|
| Site: | Claiborne |
| Issue date: | 01/22/1993 |
| From: | Walker N SIERRA CLUB LEGAL DEFENSE FUND, INC. |
| To: | Lejeune C LOUISIANA, STATE OF |
| References | |
| NUDOCS 9302120040 | |
| Download: ML20128F812 (7) | |
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SIERRA. CLUB LEG AL
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DEFENSE FUND, INC.
Tiw La> Tirmpr clor bwironmer,ta!hwment
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Sn ne,Ah Ah b ly Anscl Ada:ra 400 Maguine Strett Suite 4oi New Odeans,IA 70:3o (so.;) 3m:334 T AX (}O4) $66-7142 musamma I
- Nathahe R Weer January 22, 1993 Mmgo.g Awrm bben B. % pl Ref: 814 sufAn-n Sh.uon Crr Hartiripon c-, wiry thm h'#*
Ms. Cheryl LeJeune
%nm.. it. Amuong Water Pollution Control Division
@"M~r Louisiana Department of Environmental Quality P.O.
Box 82215 Baton Rouge, LA 70884-2215 La Frandsco, cahfo.ma RE:
LES's Hold up; Basin,-
uccowmcu outfa11 002 Dermr. cob.uao Nnalulu, Haa ah Junca Aluka
Dear Ms. LcJeune:
Scanic. Lhington Tallahanec. I bnida Wuhiomaa.o r.
In January 1993, LES issued an update to it's-Claiborne Enrichment Center (CEC) Environmental Report -
(ER) which it prepared for the Nuclear R_egulatory commission.
The January update eliminates the _ hold rup basin as a
sampling -site for the CEC offluent' monitoring program.
The basin is still there and will be used during operation; but it will not be sampled or monitored.
The Hold up basin acts as a flow control device'to limit the flow of storm water runoff into ' Bluegill' Pond.
ER S 3. 3. 2. 2.1.
It will _also provide treatment by sedimentation for outfall 002.
LES's LWDPS application Form scc-2,_Section II, F,
October 1993.
LES has an effluent monitoring program for the CEC which will involve taking samplos from various points an' tne of fluent discharge cystem.- The pre-operational (construction) phase monitoring p3 Tn will take samples from the hold up basin, ER Table 6.1-3, since it will be full of.22 feet of water.
_1_ch S 3. 3. 2. 2.1.
The original operational-phase monitoring sampling site s in May 1992 included the hold up-basin as a sampling site.
Id. Table 6. 2-1.
The new January update eliminates-the hold up basin as a sampling s it.o.
Id.
Jan 1993l version.
LES justifies Ch^p Memovdl? by ; stating that '
there will' be no water in the basir..- Letter from LeRoy to Hickey dated Jan.11, 1993.
The ER S 3. 3. 2. 2.1 -also 100065 says that the basin will be empty except during heavy
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i Cheryl LeJeune
-January 22, 1993 Page 2-q rain =.
Therefore, LES clains, there is nothing 'in the basin to sample unless there has been heavy rainfall.-
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I can understand the reasons for removing the batsinT as a j
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sampling site if and when there is no water to sample.
However,:I J
have two concerns.
First, it may well be mere speculation.by LES.
that the hold up basin will not contain any runoff.
Unless the basin is equipped with some sort of pump system, is there-any way that all of the water in the basin will flow into the Pond?
It seems that there will be at least some volume of water-left in the basin once the storm stops pushing the water out of the basin-into the Pond.
This water will simply sit in the basin until.the'next
.]
storm or until the runoff seeps into the ground and groundwater, j
j Second, after heavy rain for a long time (like - wa-have had
'l recently) the basin might be full for days or even weeks.
Even if the stormwater runof f - is flowing into Bluegill Fond, some. water will still be in the hold
- t. s basin, possibly sceping into the
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ground water.
1 At a minimum, it seems that samples not only could, but should be taken from the hold up basin when it contains. runof f.
The-runoff will contain at least oil & grease and suspended solids.
LES's LWDPS permit application states that the " Hold up basin will.
provide treatment by sedimentation for outfall 002." Form sec-2,Section II, F,
October 1992.
If this basin will.be ' forming sediments an the ground, which could seep into-groundwater, then the basin should be monitored.
The possibility of ground water contamination from' the holdiup basin and Bluegill Pond is a concern of the neighboring residents of Claiborne Parish, all of whom use-wel1-water-for bathing and drinking.
This concern has also been voiced in TANT 's - contention-
~
J Basis 6, before.the NRC licensing board.-
I' hope that you. will consider including some monitoring requirement for the-Hold up basin -in LES In JPS permit for outfall 002.
I appreciate your time in hearing my concerns in this matter.
Very truly yours, h.u h Nathalie M. Walker NMW/va cc.-Mr. Fred Humpke, 6W-PI-Environmental Protection Agency, Region VI-Peter LeRoy, Louisiana Energy-Services
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4 3.3.2.1.7
_ Main Plant' Cooling-Water ChillerJExhaust Air =
' clant thermal 1 effluent (heat) is discharged to the atmosph'ere.via 4
- the Main Plant Cooling Water System air cooled chillers.
'The heated air is discharged directly to the environment ~.
The
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primary sources of thermal effluent are the RVAC systems, tha1UF6
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centrifuges, and the autoclaves.
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3.3.2.2 Licuid_Sastes and Effluent ham 11D_9 Liquid wastes and affluent are generated in a number of processes
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throughout the plant.
All liquid effluent discharged from the plant is eventually handled in the Yard Drain System or_the.
Sewage Treatment System.
A noteworthy input to the Sewage Treatment System is discharge from the Liquid Waste Disposal System.
Each of these three syctems-is described in the s
following sections.
A diagram summarizing all aqueous liquid waste collection, treatment, and discharge is provided in Figure 3.3-5, Combined.
Diagram of Aqueous L3 quid Ef fluent Syste.ms.
Non-aqueous liquid-
- wastes are handled separately on a. case-by-case basis, and are not represented on the diagram.
For a number of systems, steel is specified for piping'and component material.
However, plastic pipe and components may be substituted where appropriate.
3.3.2.2.1 Yard Drains System The Yard Drains System collects stormwater runoff from the developed area of the site and directs it to. Bluegill' Pond at a controlled rate.
The Yard Drains System collects.stormwater via-yard drains, _
roadway' drains, and roof drains.
This includes stormwater drains-from_the UF6 Cylinder Storage Yards, Water. expended during_the testing of the Fire-Protection System isEalso collected by the Yard Drains System.
Process drains, floor. drains, and wastesiare'-
excluded from the system.
The Yard Drains System--iszillustrated.
in Figure 3.3-6, Flow Diagram of Yard Drains System.
g/ The rate of discharge from the system is controlled to minimize The1 Hold-Up-Basin erosion.around Bluegill Pond and Cyprus Creek.
_M is used as the flow control device.
During the construction-
/ phase of the facility the basin.is used as a: sedimentation 6j control. basin.
A water level of approximately 22 feet is-
. %E 4 during periods of low rainfall.
The discharge' Tk
' maintained except:
rate is controlled by the discharge standpipe.
An emergency'
] %{ f spillway is-provided to prevent' breaching of the dan during unusual storms.
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cg 3.3-8 June _1992 N
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y The standpipe is removed during the. operational phase of the
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- w facility.
The rate of discharge is controlled by a flow orifice in the discharge p.ipe.
In periods of. heavy rainfall, excess r
water temporarily collects in the Hold-Up Basin and is contin-1 cY'i uously discharged.
No water accumulation is expected during 4
periods of light rain or no rain.
The Hold-Up Basin performs no g
isolation of sedimentation functions during normal _ operation.
9 The Yard Drains System effluent is sampled and analyzed routinely in accordance with the schedule established by the facility NPDES Permit.
LES also analyzes these samples for uranium.
An administrative limit has been established at 0.5% of the regulatory limit f. rom 10 CFR S20.1302(2). Both administrative and regulatory limits are listed in Table 3.3-2, Radioactive Limits for Liquid Effluents Released to the Hold-Up Basin.
3.3.2.2.2 Sewage Treatment System Tbc Sewage Treatment System is designed to process domestic sewage and lightly polluted industrial wastewater generated at the CEC.
The system is dasigned to handle between 6,000 and 8,500 SPD while consistently producing effluents that are released to Bluegill Pond that meet all water quality standards set forth by the Louisiana Department of Environmental Quality and the U.S.
Environmental Protection Agency.
All potentially radioactive wastewaters are pretreated in the Liquid Waste Disposal System to remove uranium compounds before final processing in the Sewage Treatment System.
Stormwater is handled by the Yard Drains System that is entirely segregated from the Sewage Treatment System.
The Sewage Treatment System serves all buildings of the CEC.
Lift stations are provided as necessary to collect sewage, HVAC drains, floor and equipment drains, and Liquid Waste Disposal System effluent and transfer it to the Sewage Treatment Plant _for processing.
The Sewage Treatment System is illustrated in Figure 3.3-7, Flow Diagram of the Sewage Treatment System.
The incoming wastewater flows through a bar screen to remove solids that could adversely affect the process.
The wastewater is collected in a surge tank which also. acts as a grit chamber to remove nonorganic solids such as sand.
The wastewater is pumped at a relatively constant rate to sewage aeration tank A whc e it in mixed with the activated sludge recirculation'flov and aerated.
The mixed flow then flows to sewage aeration tank B where additional aeration occurs.
Two low pressure blowers provide constant aeration flow to both tanks.
The solid material in the wastewater is partially digested during this part of the process.
The aerated wastewater then flows into the sewage.
sett31ng tank where any non-digested cludge is separated and returned to the sewage aeration tank A.
Excess sludge is transferred to the aerobic sludge digester where final digestion I
3.3-9 June 1992-x
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'4 TABLE 6.1-3 (CONTINUED) f, PREOPERATIONAL RADIOLOGICAL ENVIRO!CIENTAL MONITORING PROGRAM -
Pathway /
Sampling and Sample type collections (a)
Samples and Locations (b,c)-
Liquid /
SW1 - Inflow to Lake Avalyn.
Grab samples Surface Same location as chemistry collected Water surface water location #1.
quarterly.
(h)
This is the control location.
Locations correspond to-SW5 - Inflow to Bluegill those shown on Pond.
Same location as Figure 2.5-10 for:
chemistry surface water chemistry surface location #5-water collections.
SW6 - Bluegill Pond, near the Note that some-center.
Same as chemistry chemistry sites surface water location #6a'.
are not needed in
-the radiological:
SW7 --Outflow from Bluegill sampling.
Pond. ~Same as chemistry surface water location #7.
SW8 - Site drainage stream.
Same_as chemistry surface
(
water location #8.
SW9 - Outflow at the western property boundary.
Same chemistry. surface water-location #9.
SWil -_ Hold-Up Basin.
Take-sample-from center of basin.
No corresponding chemistry i
location.
SW12 - Lake Claibome:e.
Take sample at inflow-point of Cypress-Creek.
No corresponding chemistry surface water location.
d January 1993
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-INLLE 6.2-1 E(continund).
SUMMARY
OF ENVIRONMENTAL RADIOLOGICAT,' MONITORING SAMPLING SITES OPERATIONAL PROGRAM 7-
' Liquid /
SW1 -. Inflow to Lake Avalyn.
Collected Surface same location as-chemistry monthly using-
-Water surface water' location./1.
continuous (c)
Control location.
flow intervalL samplers in SWS -~ Inflow to Bluegill-order'to Pond.
Same location as provide chemistry surface water constant location #5.
monitoring of the water-SW6 - Bluegill Pond, near conditions.
the center.
Same as Locations chemistry surface water correspond-to location #6a.
those shown-on. Figure SW7 - Outflow from Bluegill 2.5-10 for Pond.
Same as chemistry chemistry surface water location #7.
surface water collections.
~
SW8 - Site drainage stream.
Note that Same as chemistry surface some water location #8, chemistry sites arc not SW9 - Outflow at the western-needed in the
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property boundary.
Same radiological ~
chemistry surface water sampling.
location #9.
SW11- - Holdup basin.
Take sample from center of basin.
No corresponding chemistry-location.
Liquid /
GW1 - Same as chemistry well Grdb samples Ground Water
- A1.
to be (c)
-collected GW2 - Same as chemistry well
-monthly.
- Bl.
GW3 - Same as chemistry well
- 'C1.
GW4 - Same as chemistry well
- D1.
GWS - Same as chemistry well
- El.
GW6 - Same as chemistry well s
- F1.
92
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. TABLE 6. 2 -1 = - ( cont inu ed )
[p.
SUMMARY
OF RADIOLOGICAL ENVIRONMENTAL MONITORING SAMPLING SITES - OPERATIONAL PROGRAM Pathway /
Sampling and.
. Sample. type collictions--
(a)
Sa=ples-and Locations (b,c)
Liquid /
SW1 - Inflow to Lake Avalyn.
Collected Surface Same location as chemistry continuously via:
Water surface water location #1.
integrating water (h)
This is the control location.
sampling equipment.
Obtain SW5 - Inflow to Bluegill
. monthly composites Pond.
Same location as of integral water chemistry surface water samples.
location #5.
Locations SW6 - Bluegill Pond, near the-correspond to center.
Same as chemistry those shown on-surface water location #Ga.
Figure 2.5-10 for chemistry surface SW7 - Outflow from Bluegill water collections.
Pond.
Same as chemistry Note that some surf ace water location #7 chemis.ry sites are not needed in-SW8 - Site drainage stream.
the radiological I.
Same as chemistry surface water location #8; sampling.
SW9 - Outflow at the western property boundary.
Same chemistry surface water A
location #9.
SW12 - Lake Claiborne.
Take sample at inflow point of Cypress Creek; No corresponding chemistry surface water location.
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