| DESCRIPTION OF SERVICE |
BASELINE METHODS | UFA METHOD | ||||
|---|---|---|---|---|---|---|
| Traditional Soil Columns |
Curve Fitting Estimation Techniques |
Analyses Purchased from a UFA Service Lab |
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| time | cost | time | cost | time | cost*** | |
| Unsaturated Hydraulic Conductivity of Soils and Other Porous Media |
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| water (saturated to 10-7 cm/s) | 1 year | $2K | 6 wks | $1.5K | 3 days | $1K |
| water (saturated to 10-10 cm/s) | >20 yrs | >$20K | 3 mos. | $2K | 5 days | $2K |
| non-aqueous phase liquid e.g., CCl4 and oils (saturated to 10-10 cm/s) |
>20 yrs | >$20K | NP | NP | 5 days | $2K |
| Unsaturated Retardation Experiments** e.g., Uranium, assuming Rf = 10 at 20% of saturation |
1 month | $0.5K | NP | NP | 1 week | $2K |
| Pristine Pore Water Extraction from Unsaturated Soils, Sludges and Other Solids |
NP | NP | NP | NP | 1 day | $0.5K |
| Precision and Accuracy at the very low water contents expected in the field at arid sites |
excellent | fair | excellent | |||
| Initial Capital Investment | $10K | $15K | $0 | |||
| Lab and Maintenance Costs per Year | $1K | $1K | $0 | |||
| Feasible number of samples to to be investigated in a year per lab |
20 | 20 | 2000 | |||
| NP = Not possible using this method. * Costs are for data acquisition only; does not include cost of interpretation, specific applications or scientific reports. ** Costs do not include chemical analyses. *** Price breaks available for large orders |
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