ML19274D633
| ML19274D633 | |
| Person / Time | |
|---|---|
| Site: | Wood River Junction |
| Issue date: | 12/27/1978 |
| From: | Shum E NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| To: | NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| References | |
| NUDOCS 7902210083 | |
| Download: ML19274D633 (7) | |
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DEC 2 71978 JHIS DOCUMENT CONTAINS h P0OR QUAUTY PAGES DOCKET N0.: 70-820 APPLICANT:
UnitedNuclearCorporation(UNC)
FACILITY:
Wood River Junction, Rhode Island Fuel Recovery Operation
SUBJECT:
ENVIRONMENTAL REVIEW 0F UNC'S LICENSE AMENDMENT APPLICATION TO ALLOW THE USE OF STORAGE TANK TO PROVIDE IMMEDIATE STORAGE CAPACITY FOR TREATED CHEMICAL LIQUID WASTE
Background
By letter dated March 22, 1978, as modified by subsequent submittals, United Nuclear Corporation (the applicant) applied for a license amendment (License SNM-777) to authorize use of a storage tank to provide immediate and temporary storage capacity for the liquid process waste while the applicant is exploring methods for ultimate disposal of this liquid waste.
la connection with this license amendment application, the applicant submitted infonnation on March 22, 1978 and supplemental infonnation on May 10, 1978, August 16, 1978, October 13, 1978, December 7 and 12, 1978.
Discussion A.
General Description of UNC's Industrial Liquid Waste Management Program Process liquid wastes generated during the recovery operation tre discharged to the waste treatment system and then into lagoons or settling ponds. The input to the liquid waste treatment system consists of wastes from (1) Laundry (600 GPD), (2) Chemistry Laboratory (20 GPD), (3) Floor Wash (20 GPD), (4) ADU Filtrate (200 GPD),
(5) Raffinate (500 GPD), (6) Scrubber Solutions (20 GPD) and (7) K0H Declad (10 GPD), a total of about 1400 GPD. The overall liquid waste d fluent streams and their treatment are shown in Figure 1.
In the waste treatment system, the liquid wastes are treated with lime in one of two treatment tanks and sent to the outside lagoons. The treat-ment with lime neutralizes excess acid and causes the precipitation of 790221000
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, emergency storage of about 1.5 times the capacity of the tank (see the layout of the tank in Figure 3).
In addition to the second containment system, the tank is equipped with a tank seepage detection system. Four four-inch diameter four-foot long PVC pipes are arranged in a square approximately six inches below the tank bottom. Each pipe has four rows of 3/8 inch perforations. The center of one side of each pipe connects to the drain pipe, which leads to the leak detection sump placed on the inside edge of the water containment dike. The pipes are surrounded by at least six inches of crushed rock.
Inspection of the leak detection sump is performed monthly.
If liquid is found in the seepage sump, it will be analyzed for gross alpha, beta, nitrate and fluoride ions.
C.
Environmental Impact of the Proposed Action The use of this storage tank for the immediate storage of liquid waste has no significant impact on the environment. The tank is equipped with a hot-air plastic cover at the top so that no overflow of liquid due to heavy rainfall will take place and no dispersal of the liquid waste into the environment will occur under normal operation.
(In addition, some evaporation is expected to. occur.in the tank.) The applicant has installed a leakage detection pipe system under the tank and monitoring wells to detect leakage and seepage of liquid into groundwater.
In case of leakage from the tank, a secondary containment system is provided for emergency storage of the liquid waste. The staff therefore concludes that the applicant's groundwater monitoring system and provisions for storage are adequate.
Conclusion The use of a storage tank for the immediate stcr m of liquid waste would have no significant impact to the environment and this proposed action is not deemed to be a major federal action significantly affecting the quality of human environment; and thus, pursuant to 10 CFR 51, Section 51.5(d)(4), an environmental impact statement, negative declaration, or an environmental impact appraisal need not be prepared. Approval of the license amendment is recommended subject to the following conditions:
1.
The licensee shall collect water. samples on a monthly basis at locations and monitoring wells at identified in Figure 407.2-III and Table 407.2-II (except for well No. W-8 which is dry) of the licensee's supplement dated May 10, 1978. The collected water samples shall be analyzed for:
. (a) gross-alpha and beta radioactivity.
If the gross-alpha and beta concentrations exceed 15 pC/l and 50 pC/l respectively, identification of major nuclides and determination of their concentrations shall be conducted by the licensee.
H nitrate and fluoride.
If the concentration of nitrate (b) p(me,asured as N) exceeds 10 ppm, analysis of trace element concentration, i.e., Cd, Hg, Pb, Mo, Zn and Ni in the water sample shall be perfonned.
If water sample is unavailable in any of the wells identified above for certain reasons, an explanation shall be provided in the applicant's data collection log book.
If water sample is unavailable for a whole year, another well shall be installed at the nearby location.
2.
The licensee shall collect representative water samples from the existing lagoon system and the storage tank (s) on a monthly basis and analyze the samples for gross-alpha, beta, pH, nitrate, fluoride, lead, mercury, zinc, cadmium, nickel and molybdenum.
In addition, monthly sample shall be taken in the plant well (supply) and analyzed for pH, nitrate and fluoride.
If the concentration of NO3-(N) exceeds 10 ppm in the plant well, the water should not be used as drinking purpose. Trace element concentration in plant well, i.e., Cd, Hg, Pb, Zn, Mo and Ni shall be analyzed annually from composited water samples collected monthly.
3.
The licensee shall conduct the monitoring program to detect tank leakage by installation of a detection pipe system as described in the licensee's letter to NRC dated December 12, 1978.
E. Y. Shum Uranium Fuel, abrication Section Fuel Processing & Fabrication Branch
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