Refinement of the list of constituents for groundwater monitoring at M-area

PDF Version Also Available for Download.

Description

For several years Westinghouse Savannah River Company (WSRC) has been examining ways of reducing monitoring costs. Most of these efforts have been aimed at reducing the number of wells sampled or reducing sample frequency. With regards to monitoring around the M-Area Settling Basin, we are now examining a possible reduction in the number of constituents analyzed. It is our opinion that many constituents can be dropped entirely. Several others should be dropped from analyses in the plume definition wells, while retained for analyses at the point of compliance (POC) wells. Constituents that can be dropped entirely are nonhazardous inorganics generally ... continued below

Physical Description

[450] p.

Creation Information

Wells, D.G. November 1, 1997.

Context

This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this report can be viewed below.

Who

People and organizations associated with either the creation of this report or its content.

Author

Sponsor

Publisher

Provided By

UNT Libraries Government Documents Department

Serving as both a federal and a state depository library, the UNT Libraries Government Documents Department maintains millions of items in a variety of formats. The department is a member of the FDLP Content Partnerships Program and an Affiliated Archive of the National Archives.

Contact Us

What

Descriptive information to help identify this report. Follow the links below to find similar items on the Digital Library.

Description

For several years Westinghouse Savannah River Company (WSRC) has been examining ways of reducing monitoring costs. Most of these efforts have been aimed at reducing the number of wells sampled or reducing sample frequency. With regards to monitoring around the M-Area Settling Basin, we are now examining a possible reduction in the number of constituents analyzed. It is our opinion that many constituents can be dropped entirely. Several others should be dropped from analyses in the plume definition wells, while retained for analyses at the point of compliance (POC) wells. Constituents that can be dropped entirely are nonhazardous inorganics generally referred to as water quality indicators. Monitoring for these parameters is sensible when a facility is in detection monitoring, but it is much less useful at a facility like the M-Area Basin. The water quality indicators are helpful in detecting whether or not a facility has impacted the environment. But their concentrations are not important in themselves. At M-Area, it is well documented that the facility has impacted groundwater quite seriously with a known group of hazardous constituents. So the concentrations of the nonhazardous constituents are of little interest. Obviously, monitoring for the hazardous constituents should continue, but it should only continue at wells that are likely to yield useful data. At M-Area there are 41 Point of Compliance (POC) wells monitoring an area of about .25 square miles and about 236 plume definition wells monitoring the surround 4 square miles. The locations of well clusters and the point of compliance are shown in figure 1. The POC wells and plume definition wells are intended to serve entirely different purposes and should not, necessarily, be monitored for the same things. The POC wells form a picket line around the facility and are intended to detect any constituents leaching from it. They are also intended to determine whether such constituents exceed action levels. Plume definition wells are added to define the plume created y a particular set or subset of contaminants. They can also be used to monitor the effectiveness of corrective action upon a particular set of constituents, but one cannot assume that plume definition wells installed to monitor a plume of contaminants A and B are locate appropriately to monitor all other possible contaminants. The M-Area plume definition wells were installed in several phases over a ten year time span as SRS struggled to define the extent of a large plume of TCE and PCE. These wells were not located for the purpose of monitoring the numerous inorganics and radionuclides on the unit`s monitoring list. Many of the inorganics and radionuclides are relatively immobile in groundwater and cannot be expected to appear in the widely scattered TCE/PCE plume definition wells.

Physical Description

[450] p.

Notes

INIS; OSTI as DE98051766

Source

  • Other Information: PBD: Nov 1997

Language

Item Type

Identifier

Unique identifying numbers for this report in the Digital Library or other systems.

  • Other: DE98051766
  • Report No.: WSRC-TR--97-00347
  • Grant Number: AC09-96SR18500
  • DOI: 10.2172/573698 | External Link
  • Office of Scientific & Technical Information Report Number: 573698
  • Archival Resource Key: ark:/67531/metadc693505

Collections

This report is part of the following collection of related materials.

Office of Scientific & Technical Information Technical Reports

What responsibilities do I have when using this report?

When

Dates and time periods associated with this report.

Creation Date

  • November 1, 1997

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

Description Last Updated

  • Feb. 9, 2016, 6:56 p.m.

Usage Statistics

When was this report last used?

Yesterday: 0
Past 30 days: 1
Total Uses: 4

Interact With This Report

Here are some suggestions for what to do next.

Start Reading

PDF Version Also Available for Download.

Citations, Rights, Re-Use

Wells, D.G. Refinement of the list of constituents for groundwater monitoring at M-area, report, November 1, 1997; Aiken, South Carolina. (digital.library.unt.edu/ark:/67531/metadc693505/: accessed August 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.