Exhibit 5-3. Suggested Parameters to Report that Affect Cost and Performance (cont)

Exhibit 5-3, cont.

Suggested Parameters to Report that Affect Cost and Performance

Soil Types

Aggregate Soil Matrix Properties

Organic Properties

System Parameters

Biological Activity

Misc.

Technology

l

Air Sparging

l

Bioremediation

l

Bioslurpiing

l

Circulating Wells (UVB)

l

l12

Cosolvents/Surfactants

l

Dual-Phase Extraction

l

Dynamic Underground Stripping

l

l13

In Situ Oxidation (Fenton's Reagent)

l

l14

Natural Attenuation (Chlorinated)

l

Natural Attenuation (Nonchlorinated)

l15

l

l16

Permeable Reactive Barriers

l

l17

Phytoremediation

l

l18

Pump and Treat System

l

Steam Flushing

l

l19

Vertical Barrier Walls

Nonmatrix Characteristics that Affect Cost or Performances

Notes

Efficiency of recovery and recycling

12

Contaminants: Type and concentration of contaminants.

Injection rates; costs of chemicals

13

Cleanup goals/remediation objectives and requirements: Maximum contaminant levels, schedules, sampling and analysis.

Redox conditions; electron acceptors (oxygen, nitrate, iron, sulfate, methane); electron donors (e.g., carbon, presence of toluene);

14

Environmental Setting (for In Situ Technologies): Geology, stratigraphy, and hydrogeology (primarily).

presence of breakdown products; levels of ethene, ethane, or methane

Quantiy of material treated. Cubic yards or 1,000 gallons of water.

Dissolved oxygen levels; electron acceptors (oxygen, nitrate, iron, sulfate, methane)

15

Flow rate through gate (for funnel-and-gate system); type of reactant (e.g., iron granules)

16

Plants per unit area and plant type

17

For the treatment component of the pump and treat system, the operating parameters will vary by the specific type of treatment

18

used (e.g., carbon adsorption, air stripper); for additional information, please refer to Technical Requirements to Report HTRW

Environmental Restoration Cost and Performance, USACE 1996

Permeability of wall material and depth of key

19