Document Details

Y-12 Plant Effluents (1965) and A Study of AEC-ORO Chromate Discharges (From Box #22-6-7)
Subject Terms:
effluents, chromate; pollution
Document Location:
DOE INFORMATION CENTER 1 Way, Oak Ridge, TN 37831; Eva Butler; Phone: 865-241-4780; Toll-Free: 800-382-6938, Option 6; FAX: 865-574-3521; Email:
Document Categories:
Health, Safety and Environment\Public Health and Safety; Health, Safety and Environment\Public Health and Safety
Document Type:
Publication Date:
1968 Sep 03
Declassification Status:
Never classified
Document Pages:
Accession Number:
Document Number(s):
MS/CHR2-0273, 12008
Originating Research Org.:
Oak Ridge Y-12 Plant
OpenNet Entry Date:
1998 Jun 16
The purpose of this report was to examine the regulations and standards relating to chromate pollution, to examine the extent and implications of ORO plant discharges, and draw conclusions as to what actions may be necessary to control the discharges to a level that meets applicable water pollution standards that are safe for humans, domestic animals, fish, and other wildlife. All four plants, Y-12, K-25, GAT, and the Paducah Gaseous Diffusion Plant (PAD) met the General Standards of Executive Order 11258 (Prevention, Control, and Abatement of Water Pollution by Federal Activities), and it is expected that they will continue to do so after planned plant improvements. The process water cooling system used by the plants is a system in which a cooling tower serves to evaporate heat. The totally dissolved solids are concentrated in the water by evaporation at the cooling tower. After several cycles through the plant heat exchange equipment, a small portion of the water must be discharged (blowdown) to prevent solids from exceeding a tolerable level. Chromate salts are added to the recirculating waters to slowdown corrosion and fungicide agents containing chromate ions are used in the treatment of wood cooling towers. The chromate circulates through the system unchanged, and this discharge creates a potential problem for the receiving waters. Results to date indicated that ion exchange or chromate destruction are the better methods for treatment of ORO chromate discharges. It was noted that planned plant improvements at PAD will produce large changes in chromate levels so that surveillance will be necessary to make certain the increased concentrations can be controlled to meet the levels of the Executive Order. It will be necessary for the other three plants to maintain a meaningful water sampling program to monitor any changes in chromate discharges in the upcoming years and document continued safe plant waste discharges. Also included are tables with results concerning Y-12 Plant Effluents, and East Fork Poplar Creek Analyses of monthly composites dated 1964 and 1965.

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